/* ==========================================================================
   G6Solver Landing Page - Component Styles
   ========================================================================== */

/* ==========================================================================
   Mobile Menu Components
   ========================================================================== */

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-around;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: var(--z-index-mobile-toggle);
  transition: all var(--duration-normal) var(--ease-in-out);
  padding: var(--space-1);
  border-radius: var(--radius-sm);
  position: relative;
  /* Ensure proper touch target size */
  min-width: 44px;
  min-height: 44px;
}

.mobile-menu-toggle:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: scale(1.1);
}

.mobile-menu-toggle:active {
  transform: scale(0.95);
}

.mobile-menu-toggle span {
  display: block;
  height: 3px;
  width: 100%;
  background: var(--color-text-primary);
  border-radius: 2px;
  transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  transform-origin: center;
  position: relative;
}

.mobile-menu-toggle span:nth-child(1) {
  transform-origin: top left;
}

.mobile-menu-toggle span:nth-child(3) {
  transform-origin: bottom left;
}

.mobile-menu-toggle[aria-expanded="true"] {
  transform: rotate(180deg);
}

.mobile-menu-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
  background: var(--color-primary-start);
}

.mobile-menu-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.mobile-menu-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
  background: var(--color-primary-start);
}

.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: rgba(0, 0, 0, 0.98);
  backdrop-filter: blur(20px);
  z-index: var(--z-index-mobile-menu);
  padding: var(--spacing-section-padding-desktop) var(--space-5) var(--space-5);
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: center;
  transform: translateY(-100%);
  transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  opacity: 0;
  visibility: hidden;
}

.mobile-menu.active {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

.mobile-nav-links {
  list-style: none;
  text-align: center;
}

.mobile-nav-links li {
  margin: var(--space-8) 0;
  opacity: 0;
  transform: translateY(50px) scale(0.8);
  transition: all 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.mobile-menu.active .mobile-nav-links li {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.mobile-menu.active .mobile-nav-links li:nth-child(1) { transition-delay: 0.1s; }
.mobile-menu.active .mobile-nav-links li:nth-child(2) { transition-delay: 0.15s; }
.mobile-menu.active .mobile-nav-links li:nth-child(3) { transition-delay: 0.2s; }
.mobile-menu.active .mobile-nav-links li:nth-child(4) { transition-delay: 0.25s; }
.mobile-menu.active .mobile-nav-links li:nth-child(5) { transition-delay: 0.3s; }

.mobile-nav-links a {
  color: var(--color-text-primary);
  text-decoration: none;
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-semibold);
  transition: all var(--duration-normal) var(--ease-in-out);
  position: relative;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-lg);
  display: block;
}

.mobile-nav-links a::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 50%;
  width: 0;
  height: 3px;
  background: linear-gradient(135deg, var(--color-primary-start), var(--color-primary-mid));
  transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  transform: translateX(-50%);
  border-radius: 2px;
}

.mobile-nav-links a:hover {
  background: rgba(99, 102, 241, 0.1);
  transform: scale(1.05);
  color: var(--color-primary-start);
}

.mobile-nav-links a:hover::after {
  width: 80%;
}

/* Mobile sizing tweaks for hamburger menu and links */
@media (max-width: 639px) {
  /* Reduce overlay padding on small screens */
  .mobile-menu {
    padding: var(--spacing-section-padding-mobile) var(--space-4) var(--space-4);
  }

  /* Tighter spacing between menu items */
  .mobile-nav-links li {
    margin: var(--space-4) 0;
  }

  /* Smaller link text and padding */
  .mobile-nav-links a {
    font-size: var(--font-size-lg);
    padding: var(--space-2) var(--space-4);
  }

  /* Make the close (X) smaller and ensure it's inside the viewport */
  .mobile-menu-toggle[aria-expanded="true"] {
    width: 28px;
    height: 28px;
    position: fixed;
    top: var(--space-4);
    right: var(--space-4); /* Ensure adequate spacing from edge to prevent cutoff */
    z-index: var(--z-index-mobile-toggle);
    transform: none; /* avoid extra rotation scale that could clip */
    /* Ensure it stays within viewport bounds */
    max-width: calc(100vw - var(--space-8));
  }

  .mobile-menu-toggle:hover {
    transform: none;
  }

  /* Tighter X bar translations so lines stay within the button */
  .mobile-menu-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: rotate(45deg) translate(4px, 4px);
  }

  .mobile-menu-toggle[aria-expanded="true"] span:nth-child(2) {
    transform: scaleX(0);
  }

  .mobile-menu-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: rotate(-45deg) translate(4px, -4px);
  }
}

/* Extra small mobile devices (320px to 430px) */
@media (max-width: 430px) {
  /* Ensure hamburger menu is always visible and properly positioned */
  .mobile-menu-toggle {
    margin-right: var(--space-2);
    min-width: 40px;
    min-height: 40px;
    width: 40px;
    height: 40px;
    flex-shrink: 0;
    /* Ensure it stays within viewport bounds */
    max-width: calc(100vw - var(--space-6));
  }
  
  /* Adjust nav container padding for very small screens */
  nav {
    padding: 0 var(--space-3);
    /* Ensure nav container doesn't cause horizontal overflow */
    max-width: 100vw;
    overflow: hidden;
  }
  
  /* Ensure logo doesn't take up too much space */
  .logo img {
    width: 40px;
    height: 40px;
  }
  
  /* Make sure hamburger spans are visible */
  .mobile-menu-toggle span {
    width: 20px;
    height: 2px;
    margin: 3px 0;
  }
}

/* ==========================================================================
   Cursor Effects
   ========================================================================== */

.cursor-trail {
  width: 8px;
  height: 8px;
  background: var(--color-primary-start);
  border-radius: 50%;
  position: fixed;
  pointer-events: none;
  z-index: var(--z-index-cursor);
  transition: all 0.15s ease;
  transform: translate(-50%, -50%);
}

/* ==========================================================================
   Background Canvas
   ========================================================================== */

.bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: var(--z-index-background);
  opacity: 0.6;
}

/* ==========================================================================
   Header Component
   ========================================================================== */

header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  padding: var(--space-5) 0;
  background: rgba(0, 0, 0, 0.3);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  z-index: var(--z-index-header);
  -webkit-transition: all var(--duration-header-scroll) var(--ease-smooth);
  -moz-transition: all var(--duration-header-scroll) var(--ease-smooth);
  -ms-transition: all var(--duration-header-scroll) var(--ease-smooth);
  -o-transition: all var(--duration-header-scroll) var(--ease-smooth);
  transition: all var(--duration-header-scroll) var(--ease-smooth);
  -webkit-transform: translateY(0);
  -moz-transform: translateY(0);
  -ms-transform: translateY(0);
  -o-transform: translateY(0);
  transform: translateY(0);
  /* Ensure header doesn't cause horizontal overflow */
  width: 100%;
  max-width: 100vw;
  box-sizing: border-box;
  overflow: hidden;
}

/* Fallback for browsers without backdrop-filter */
@supports not ((-webkit-backdrop-filter: blur(10px)) or (backdrop-filter: blur(10px))) {
  header {
    background: rgba(0, 0, 0, 0.95);
  }
  
  header.scrolled {
    background: rgba(0, 0, 0, 0.98);
  }
}

header.scrolled {
  padding: var(--space-3) 0;
  background: rgba(0, 0, 0, 0.95);
  backdrop-filter: blur(30px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

header.scrolled .logo {
  font-size: 1.5rem;
  transform: scale(0.95);
}

header.scrolled .nav-links a {
  font-size: var(--font-size-sm);
}

nav {
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: 0 var(--space-5);
  display: flex;
  justify-content: space-between;
  align-items: center;
  /* Ensure nav never exceeds viewport width */
  width: 100%;
  box-sizing: border-box;
}

.logo {
  font-size: 1.75rem;
  font-weight: var(--font-weight-extrabold);
  background: var(--gradient-primary);
  background: -webkit-linear-gradient(135deg, #6366f1, #8b5cf6, #ec4899);
  background: -moz-linear-gradient(135deg, #6366f1, #8b5cf6, #ec4899);
  background: -ms-linear-gradient(135deg, #6366f1, #8b5cf6, #ec4899);
  background: -o-linear-gradient(135deg, #6366f1, #8b5cf6, #ec4899);
  background: linear-gradient(135deg, #6366f1, #8b5cf6, #ec4899);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  color: transparent;
  text-decoration: none;
  -webkit-transition: all var(--duration-normal) var(--ease-in-out);
  -moz-transition: all var(--duration-normal) var(--ease-in-out);
  -ms-transition: all var(--duration-normal) var(--ease-in-out);
  -o-transition: all var(--duration-normal) var(--ease-in-out);
  transition: all var(--duration-normal) var(--ease-in-out);
  -webkit-transform-origin: center;
  -moz-transform-origin: center;
  -ms-transform-origin: center;
  -o-transform-origin: center;
  transform-origin: center;
}

/* Fallback for browsers without background-clip: text */
@supports not ((-webkit-background-clip: text) or (background-clip: text)) {
  .logo {
    color: #6366f1;
    background: none;
  }
}

.logo:hover {
  transform: scale(1.05);
}

.nav-links {
  display: flex;
  gap: var(--space-10);
  list-style: none;
}

.nav-links a {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
  position: relative;
  transition: all var(--duration-normal) var(--ease-in-out);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(135deg, var(--color-primary-start), var(--color-primary-mid));
  transition: all var(--duration-normal) var(--ease-in-out);
  transform: translateX(-50%);
  border-radius: 1px;
}

.nav-links a:hover {
  color: var(--color-text-primary);
  background: rgba(255, 255, 255, 0.05);
  transform: translateY(0); /* disable vertical shift to stop flicker */
}

.nav-links a::before {
  pointer-events: none; /* ensures hover stays on the link itself */
}

.nav-links a:hover::after {
  width: 80%;
}

.nav-links a[href="#cta"] {
  transition: color 0.3s ease;
  animation: green-flash 5s infinite;
}

@keyframes green-flash {
  0%, 60%, 100% { color: var(--color-text-secondary); }
  10%, 20% { color: #22c55e; }
  15% { color: #16a34a; }
}

.flashing-btn {
  position: relative;
  transition: color var(--duration-normal) var(--ease-in-out);
  animation: green-flash var(--animation-flash-duration) infinite;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  overflow: hidden;
  padding: var(--spacing-section-padding-desktop) var(--space-5);
  background: 
    radial-gradient(ellipse at 20% 80%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(139, 92, 246, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 40% 40%, rgba(236, 72, 153, 0.1) 0%, transparent 50%),
    var(--color-bg-primary);
  animation: heroBackgroundShift 20s ease-in-out infinite;
}

@keyframes heroBackgroundShift {
  0%, 100% {
    background-position: 0% 0%, 100% 100%, 50% 50%;
  }
  33% {
    background-position: 100% 0%, 0% 100%, 80% 20%;
  }
  66% {
    background-position: 0% 100%, 100% 0%, 20% 80%;
  }
}

.hero-content {
  max-width: 1000px;
  z-index: 10;
  position: relative;
  padding: 0 var(--space-5);
}

.hero-brand {
  margin-bottom: var(--space-12);
}

.hero-title {
  font-size: var(--font-size-hero-h1);
  font-weight: var(--font-weight-black);
  margin-bottom: var(--space-6);
  background: var(--gradient-hero-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0;
  animation: heroFadeIn var(--duration-hero-animation) ease-out 0.2s forwards;
  letter-spacing: var(--letter-spacing-tight);
  line-height: var(--line-height-tight);
  text-shadow: 0 0 40px rgba(99, 102, 241, 0.3);
}

.hero-tagline {
  font-size: var(--font-size-hero-tagline);
  color: var(--color-text-accent);
  font-weight: var(--font-weight-medium);
  opacity: 0;
  animation: heroSlideIn var(--duration-hero-animation) ease-out 0.4s forwards;
  line-height: var(--line-height-relaxed);
  font-style: italic;
  margin: 0;
  text-transform: lowercase;
  letter-spacing: 0.5px;
}

.hero-description {
  margin-bottom: var(--space-16);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.hero-subtitle {
  font-size: var(--font-size-hero-subtitle);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
  font-weight: var(--font-weight-light);
  position: relative;
  /* Move subtitle up slightly */
  margin-top: -30px;
  opacity: 0;
  animation: heroFadeIn var(--duration-hero-animation) ease-out 0.6s forwards;
  line-height: var(--line-height-normal);
}

.hero-value-prop {
  position: relative;
  top: 120px; /* adjust so it sits below animation */
  font-size: var(--font-size-lg);
  color: var(--color-text-tertiary);
  margin-bottom: 0;
  font-weight: var(--font-weight-normal);
  opacity: 0;
  animation: heroFadeIn var(--duration-hero-animation) ease-out 0.8s forwards;
  line-height: var(--line-height-relaxed);
}

.hero-cta {
  display: flex;
  position: relative;
  top: 60px;
  gap: var(--space-6);
  justify-content: center;
  flex-wrap: wrap;
  opacity: 0;
  animation: heroScaleIn var(--duration-hero-animation) ease-out 1s forwards;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

.hero-background::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 25% 25%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 75% 75%, rgba(139, 92, 246, 0.1) 0%, transparent 50%);
  animation: particleFloat 15s ease-in-out infinite;
}

.hero-background::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    linear-gradient(45deg, transparent 30%, rgba(99, 102, 241, 0.05) 50%, transparent 70%),
    linear-gradient(-45deg, transparent 30%, rgba(236, 72, 153, 0.05) 50%, transparent 70%);
  animation: gradientShift 12s ease-in-out infinite;
}

@keyframes particleFloat {
  0%, 100% {
    transform: translateY(0px) rotate(0deg);
    opacity: 0.3;
  }
  50% {
    transform: translateY(-20px) rotate(180deg);
    opacity: 0.6;
  }
}

@keyframes gradientShift {
  0%, 100% {
    transform: translateX(0px) translateY(0px);
  }
  25% {
    transform: translateX(10px) translateY(-10px);
  }
  50% {
    transform: translateX(-5px) translateY(5px);
  }
  75% {
    transform: translateX(-10px) translateY(-5px);
  }
}

/* ==========================================================================
   Button Components
   ========================================================================== */

.btn-primary {
  background: var(--gradient-primary);
  color: var(--color-text-primary);
  padding: var(--space-5) var(--space-8);
  border: none;
  border-radius: var(--radius-2xl);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  text-decoration: none;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  top: 90px;
  overflow: hidden;
  transition: all var(--duration-normal) var(--ease-in-out);
  cursor: pointer;
  min-width: 200px;
  text-align: center;
}

.btn-primary::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--gradient-button-hover);
  transition: left var(--duration-slow) var(--ease-in-out);
}

.btn-primary:hover::before {
  left: 100%;
}

.btn-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: var(--shadow-button-hover);
}

.btn-primary:active {
  transform: translateY(-1px) scale(0.98);
  transition-duration: 0.1s;
}

.btn-secondary {
  background: var(--color-surface-secondary);
  color: var(--color-text-primary);
  padding: var(--space-5) var(--space-8);
  border: 2px solid var(--color-border-secondary);
  border-radius: var(--radius-2xl);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  text-decoration: none;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  transition: all var(--duration-normal) var(--ease-in-out);
  backdrop-filter: var(--backdrop-blur-sm);
  min-width: 200px;
  text-align: center;
  position: relative;
  top: 90px; 
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.4);
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 10px 30px rgba(255, 255, 255, 0.1);
}

.btn-secondary:active {
  transform: translateY(-1px) scale(0.98);
  transition-duration: 0.1s;
}

.btn-text {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-1);
  position: relative;
  z-index: 2;
}

.btn-subtitle {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-normal);
  opacity: 0.8;
  position: relative;
  z-index: 2;
  transition: opacity var(--duration-normal) var(--ease-in-out);
}

/* Enhanced focus states for accessibility */
.btn-primary:focus,
.btn-secondary:focus {
  outline: 2px solid var(--color-primary-start);
  outline-offset: 4px;
}

/* Hover effects for button text */
.btn-primary:hover .btn-subtitle,
.btn-secondary:hover .btn-subtitle {
  opacity: 1;
}

/* Pulse animation for primary button */
.btn-primary::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.6s ease, height 0.6s ease;
  z-index: 1;
}

.btn-primary:hover::after {
  width: 300px;
  height: 300px;
  opacity: 0;
}

/* Ripple effect on click */
@keyframes ripple {
  0% {
    transform: translate(-50%, -50%) scale(0);
    opacity: 1;
  }
  100% {
    transform: translate(-50%, -50%) scale(4);
    opacity: 0;
  }
}

.btn-primary:active::after,
.btn-secondary:active::after {
  animation: ripple 0.6s ease-out;
}

/* ==========================================================================
   Floating Elements Animation
   ========================================================================== */

.floating-element {
  position: absolute;
  font-size: 2rem;
  opacity: var(--opacity-disabled);
  animation: float var(--animation-float-duration) ease-in-out infinite;
  user-select: none;
  pointer-events: none;
}

.floating-element.brain {
  top: 15%;
  left: 8%;
  animation: float var(--animation-float-duration) ease-in-out infinite;
  animation-delay: 0s;
  font-size: 2.5rem;
}

.floating-element.lightning {
  top: 25%;
  right: 12%;
  animation: pulse 4s ease-in-out infinite;
  animation-delay: 1.5s;
  font-size: 2rem;
}

.floating-element.target {
  bottom: 35%;
  left: 15%;
  animation: floatReverse var(--animation-float-duration) ease-in-out infinite;
  animation-delay: 3s;
  font-size: 2rem;
}

.floating-element.gear {
  top: 60%;
  right: 20%;
  animation: float 8s ease-in-out infinite;
  animation-delay: 4.5s;
  font-size: 1.8rem;
}

.floating-element.rocket {
  bottom: 20%;
  right: 8%;
  animation: pulse 5s ease-in-out infinite;
  animation-delay: 6s;
  font-size: 2.2rem;
}

/* ==========================================================================
   Problem Section
   ========================================================================== */

.problem-section {
  min-height: 100vh;
  padding: var(--spacing-section-padding-desktop) var(--space-10);
  display: flex;
  align-items: center;
  background: var(--gradient-bg-problem);
  position: relative;
  overflow: hidden;
}

.problem-content {
  max-width: var(--container-xl);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-20);
  align-items: center;
}

.problem-text h2 {
  font-size: var(--font-size-section-h2);
  font-weight: var(--font-weight-extrabold);
  margin-bottom: var(--space-8);
  background: var(--gradient-secondary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.problem-text p {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-5);
  line-height: var(--line-height-loose);
}

.problem-visual {
  position: relative;
  height: 400px;
}

.problem-item {
  position: absolute;
  background: var(--color-surface-secondary);
  backdrop-filter: var(--backdrop-blur-sm);
  border: 1px solid var(--color-border-secondary);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.9);
  animation: problemFloat var(--animation-problem-float-duration) ease-in-out infinite;
  max-width: 200px;
}

.problem-item:nth-child(1) {
  top: 0;
  left: 0;
  animation-delay: 0s;
}

.problem-item:nth-child(2) {
  top: 50px;
  right: 0;
  animation-delay: 1s;
}

.problem-item:nth-child(3) {
  bottom: 100px;
  left: 50px;
  animation-delay: 2s;
}

.problem-item:nth-child(4) {
  bottom: 0;
  right: 50px;
  animation-delay: 3s;
}

/* ==========================================================================
   Features Section with Hexagons
   ========================================================================== */

.features-section {
  min-height: 100vh;
  background: var(--color-bg-primary);
  padding: var(--spacing-section-padding-desktop) 0;
  position: relative;
}

.features-container {
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: 0 var(--space-5);
  text-align: center;
}

.features-section h2 {
  font-size: var(--font-size-section-h2);
  font-weight: var(--font-weight-extrabold);
  margin-bottom: var(--space-20);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hexagon-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-5);
  max-width: 800px;
  margin: 0 auto;
}

.hexagon {
  width: 220px;
  height: 220px;
  position: relative;
  margin: var(--space-4);
  transition: all 0.4s ease;
  cursor: pointer;
}

.hexagon:hover {
  transform: scale(1.05) rotate(2deg);
}

.hexagon-inner {
  width: 100%;
  height: 100%;
  background: var(--gradient-primary);
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hexagon-inner::before {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  right: 3px;
  bottom: 3px;
  background: var(--color-bg-primary);
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
  z-index: 1;
}

.hexagon-content {
  position: relative;
  z-index: 2;
  padding: var(--space-8) var(--space-6);
  max-width: 160px;
}

.hexagon-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-2);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
}

.hexagon h3 {
  font-size: var(--font-size-hexagon-h3);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-1);
  line-height: var(--line-height-snug);
}

.hexagon p {
  font-size: var(--font-size-hexagon-p);
  color: var(--color-text-secondary);
  line-height: var(--line-height-normal);
  margin: 0;
}

/* ==========================================================================
   Demo Section
   ========================================================================== */

.demo-section {
  min-height: 100vh;
  padding: var(--spacing-section-padding-desktop) var(--space-10);
  background: var(--gradient-bg-demo);
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.demo-container {
  max-width: var(--container-xl);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-20);
  align-items: center;
}

.demo-text h2 {
  font-size: var(--font-size-section-h2);
  font-weight: var(--font-weight-extrabold);
  margin-bottom: var(--space-8);
  color: var(--color-text-primary);
}

.demo-text p {
  font-size: var(--font-size-xl);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-10);
  line-height: var(--line-height-loose);
}

.demo-visual {
  background: var(--color-surface-primary);
  border-radius: var(--radius-xl);
  padding: var(--space-10);
  border: 1px solid var(--color-border-primary);
  backdrop-filter: var(--backdrop-blur-sm);
  position: relative;
  overflow: hidden;
}

.demo-steps {
  list-style: none;
}

.demo-step {
  display: flex;
  align-items: center;
  margin-bottom: var(--space-5);
  opacity: var(--opacity-inactive);
  transition: all var(--duration-slow) var(--ease-in-out);
  padding: var(--space-4);
  border-radius: var(--radius-md);
}

.demo-step.active {
  opacity: var(--opacity-primary);
  background: rgba(99, 102, 241, 0.1);
  border-left: 4px solid var(--color-primary-start);
}

.step-number {
  width: 30px;
  height: 30px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-sm);
  margin-right: var(--space-4);
}

.step-text {
  color: var(--color-text-primary);
  font-weight: var(--font-weight-medium);
}

/* ==========================================================================
   CTA Section
   ========================================================================== */

.cta-section {
  min-height: 60vh;
  background: var(--color-bg-primary);
  display: flex;
  justify-content: center;
  text-align: center;
  position: relative;
  overflow: hidden;
  padding: var(--space-10) var(--space-10) var(--spacing-section-padding-desktop);
}

.cta-content {
  max-width: 800px;
  z-index: 10;
  position: relative;
}

.cta-section h2 {
  font-size: var(--font-size-section-h2);
  font-weight: var(--font-weight-extrabold);
  margin-bottom: var(--space-8);
  background: linear-gradient(135deg, var(--color-text-primary), var(--color-primary-start));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.cta-section p {
  font-size: var(--font-size-xl);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-12);
  line-height: var(--line-height-loose);
}

/* ==========================================================================
   Footer
   ========================================================================== */

.footer-container {
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: var(--space-10) var(--space-5);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.social-media-container {
  display: flex;
  gap: var(--space-5);
  margin-bottom: var(--space-5);
}

.social-icons,
.social-media-logo {
  width: 32px;
  height: 32px;
}

/* ==========================================================================
   Modal Components
   ========================================================================== */

#demo-modal {
  display: none;
  position: fixed;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  background-color: rgba(0, 0, 0, 0.4);
  min-height: fit-content;
  z-index: var(--z-index-modal-backdrop);
}

.demo-modal-content {
  background-color: var(--color-text-primary);
  color: var(--color-bg-primary);
  margin: 10% auto;
  padding: var(--space-5) var(--space-5) var(--space-10);
  border-radius: var(--radius-base);
  width: 90%;
  max-width: 500px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.25);
  z-index: var(--z-index-modal);
  display: flex;
  justify-content: center;
  flex-direction: column;
  align-items: center;
}

.close {
  font-size: var(--font-size-xl);
  line-height: var(--font-size-xl);
  cursor: pointer;
  margin-left: auto;
}

.label-wrapper {
  width: 100%;
  position: relative;
  margin-top: var(--space-5);
}

.book-demo-btn {
  background-color: var(--color-primary-start);
  color: var(--color-text-primary);
  border: none;
  border-radius: var(--radius-sm);
  padding: var(--space-3) var(--space-6);
  font-size: var(--font-size-base);
  cursor: pointer;
  transition: background-color var(--duration-normal) var(--ease-in-out);
  margin-top: var(--space-10);
  width: fit-content;
  margin-left: auto;
}

.book-demo-btn:hover {
  background-color: #4f46e5;
}

/* ==========================================================================
   Interactive Element Animations and Micro-interactions
   ========================================================================== */

/* Enhanced Button Hover Effects */
.btn-primary,
.btn-secondary,
.btn-demo,
.btn-desktop,
.btn-cta-primary,
.btn-cta-secondary {
    position: relative;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    cursor: pointer;
    user-select: none;
}

.btn-primary:hover,
.btn-secondary:hover,
.btn-demo:hover,
.btn-desktop:hover,
.btn-cta-primary:hover,
.btn-cta-secondary:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 10px 25px rgba(99, 102, 241, 0.3);
}

.btn-primary:active,
.btn-secondary:active,
.btn-demo:active,
.btn-desktop:active,
.btn-cta-primary:active,
.btn-cta-secondary:active {
    transform: translateY(0) scale(0.98);
    transition-duration: 0.1s;
}

/* Button Focus States for Accessibility */
.btn-primary:focus,
.btn-secondary:focus,
.btn-demo:focus,
.btn-desktop:focus,
.btn-cta-primary:focus,
.btn-cta-secondary:focus {
    outline: 2px solid var(--color-primary-start);
    outline-offset: 4px;
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.2);
}

/* Button Disabled States */
.btn-primary:disabled,
.btn-secondary:disabled,
.btn-demo:disabled,
.btn-desktop:disabled,
.btn-cta-primary:disabled,
.btn-cta-secondary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

/* Card Hover Effects */
.advantage-card,
.comparison-column,
.dashboard-mockup,
.feature-item {
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    cursor: pointer;
}

.advantage-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 15px 40px rgba(99, 102, 241, 0.2);
    border-color: rgba(99, 102, 241, 0.3);
}

.advantage-card:hover .advantage-icon {
    transform: translateY(-2px) scale(1.03);
    transition: transform var(--duration-fast) var(--ease-in-out);
}

.comparison-column:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
}

.comparison-column:hover .comparison-icon {
    transform: scale(1.3) rotate(10deg);
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* Feature Item Hover Effects */
.feature-item:hover {
    background: rgba(99, 102, 241, 0.1);
    border-left: 4px solid var(--color-primary-start);
    padding-left: calc(var(--space-4) + 4px);
    transform: translateX(8px);
}

.feature-item:hover .feature-icon {
    transform: scale(1.2);
    filter: brightness(1.3);
}

/* Navigation Link Hover Effects */
.nav-links a {
    position: relative;
    overflow: hidden;
}

.nav-links a::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(99, 102, 241, 0.2), transparent);
    transition: left 0.5s ease;
}

.nav-links a:hover::before {
    left: 100%;
}

/* Logo Hover Effect */
.logo:hover {
    transform: scale(1.05);
    filter: brightness(1.2);
    text-shadow: 0 0 20px rgba(99, 102, 241, 0.5);
}

/* Loading States */
.loading {
    position: relative;
    pointer-events: none;
    opacity: 0.7;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid transparent;
    border-top: 2px solid var(--color-primary-start);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Button Loading State */
.btn-loading {
    position: relative;
    color: transparent !important;
}

.btn-loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 16px;
    height: 16px;
    margin: -8px 0 0 -8px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top: 2px solid white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* Form Element Micro-interactions */
input, textarea, select {
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    border: 2px solid var(--color-border-primary);
    border-radius: var(--radius-md);
    padding: var(--space-3) var(--space-4);
    background: var(--color-surface-primary);
    color: var(--color-text-primary);
}

input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--color-primary-start);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
    transform: scale(1.02);
    background: var(--color-surface-secondary);
}

input:hover, textarea:hover, select:hover {
    border-color: var(--color-border-secondary);
    background: var(--color-surface-secondary);
}

/* Checkbox and Radio Button Animations */
input[type="checkbox"], input[type="radio"] {
    appearance: none;
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-border-primary);
    border-radius: var(--radius-sm);
    position: relative;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

input[type="radio"] {
    border-radius: 50%;
}

input[type="checkbox"]:checked, input[type="radio"]:checked {
    background: var(--gradient-primary);
    border-color: var(--color-primary-start);
    transform: scale(1.1);
}

input[type="checkbox"]:checked::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 12px;
    font-weight: bold;
}

input[type="radio"]:checked::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 8px;
    height: 8px;
    background: white;
    border-radius: 50%;
    transform: translate(-50%, -50%);
}

/* CTA Pulse Animation */
@keyframes ctaPulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(99, 102, 241, 0.4);
    }
    50% {
        transform: scale(1.05);
        box-shadow: 0 0 0 10px rgba(99, 102, 241, 0);
    }
}

.cta-pulse {
    animation: ctaPulse 2s ease-in-out infinite;
}

/* Tooltip Animations */
/* Disable tooltips for advantage icons */
.tooltip::before,
.tooltip::after {
  content: none !important;
}
/* Keep minimal base to avoid layout quirks */
.tooltip { cursor: default; }

/* Icon Hover Effects */
.advantage-icon,
.comparison-icon,
.feature-icon {
    transition: transform 180ms var(--ease-in-out), filter 180ms var(--ease-in-out);
    display: inline-block;
    will-change: transform;
}

.advantage-icon:hover,
.comparison-icon:hover,
.feature-icon:hover {
    transform: translateY(-2px) scale(1.03);
    filter: none;
}

/* Progress Bar Animations */
.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--color-surface-primary);
    border-radius: var(--radius-sm);
    overflow: hidden;
    position: relative;
}

.progress-fill {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
    transition: width 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: progressShimmer 2s ease-in-out infinite;
}

@keyframes progressShimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* Badge Animations */
.badge {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    background: var(--gradient-primary);
    color: white;
    border-radius: var(--radius-2xl);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.badge:hover {
    transform: scale(1.1);
    box-shadow: 0 5px 15px rgba(99, 102, 241, 0.4);
}

/* Floating Action Button */
.fab {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 24px;
    box-shadow: 0 5px 20px rgba(99, 102, 241, 0.4);
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    cursor: pointer;
    z-index: 1000;
}

.fab:hover {
    transform: scale(1.1) rotate(10deg);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.6);
}

.fab:active {
    transform: scale(0.95);
}

/* Ripple Effect for Clickable Elements */
.ripple {
    position: relative;
    overflow: hidden;
}

.ripple::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

.ripple:active::before {
    width: 300px;
    height: 300px;
}

/* Shake Animation for Error States */
@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
    20%, 40%, 60%, 80% { transform: translateX(5px); }
}

.shake {
    animation: shake 0.5s ease-in-out;
}

/* Bounce Animation for Success States */
@keyframes bounce {
    0%, 20%, 53%, 80%, 100% { transform: translateY(0); }
    40%, 43% { transform: translateY(-15px); }
    70% { transform: translateY(-7px); }
    90% { transform: translateY(-3px); }
}

.bounce {
    animation: bounce 1s ease-in-out;
}

/* ==========================================================================
   Animations and Keyframes
   ========================================================================== */

@keyframes float {
  0%, 100% {
    transform: translateY(0px) rotate(0deg) scale(1);
    opacity: var(--opacity-disabled);
  }
  25% {
    transform: translateY(-15px) rotate(5deg) scale(1.1);
    opacity: var(--opacity-muted);
  }
  50% {
    transform: translateY(-30px) rotate(10deg) scale(1);
    opacity: var(--opacity-secondary);
  }
  75% {
    transform: translateY(-15px) rotate(5deg) scale(0.9);
    opacity: var(--opacity-muted);
  }
}

@keyframes floatReverse {
  0%, 100% {
    transform: translateY(0px) rotate(0deg) scale(1);
    opacity: var(--opacity-disabled);
  }
  25% {
    transform: translateY(15px) rotate(-5deg) scale(0.9);
    opacity: var(--opacity-muted);
  }
  50% {
    transform: translateY(30px) rotate(-10deg) scale(1);
    opacity: var(--opacity-secondary);
  }
  75% {
    transform: translateY(15px) rotate(-5deg) scale(1.1);
    opacity: var(--opacity-muted);
  }
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
    opacity: var(--opacity-disabled);
  }
  50% {
    transform: scale(1.2);
    opacity: var(--opacity-muted);
  }
}

@keyframes heroFadeIn {
  from {
    opacity: 0;
    transform: translateY(50px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes heroSlideIn {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes heroScaleIn {
  from {
    opacity: 0;
    transform: scale(0.8);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes green-flash {
  0%, 100% {
    color: var(--color-text-secondary);
    text-shadow: none;
  }
  50% {
    color: var(--color-text-flash);
    text-shadow: 0 0 8px var(--color-text-flash), 0 0 16px var(--color-text-flash);
  }
}

@keyframes problemFloat {
  0%, 100% {
    transform: translateY(0px);
    opacity: var(--opacity-muted);
  }
  50% {
    transform: translateY(-15px);
    opacity: var(--opacity-primary);
  }
}

/* ==========================================================================
   Dashboard and Account Management Section
   ========================================================================== */

.dashboard-section {
  min-height: 100vh;
  background: var(--color-bg-secondary);
  padding: var(--spacing-section-padding-desktop) 0;
  position: relative;
}

.dashboard-container {
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: 0 var(--space-5);
  text-align: center;
}

.dashboard-section h2 {
  font-size: var(--font-size-section-h2);
  font-weight: var(--font-weight-extrabold);
  margin-bottom: var(--space-6);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: var(--line-height-snug);
  padding-bottom: 0.15em;
  display: inline-block;
}

.dashboard-intro {
  font-size: var(--font-size-xl);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-16);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  line-height: var(--line-height-relaxed);
}

.dashboard-features {
  max-width: 1000px;
  margin: 0 auto;
}

.dashboard-mockup {
  background: var(--color-surface-primary);
  border: 1px solid var(--color-border-secondary);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  backdrop-filter: var(--backdrop-blur-sm);
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.dashboard-mockup::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
}

.dashboard-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border-primary);
}

.dashboard-header h3 {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin: 0;
}

.dashboard-period {
  background: var(--color-surface-secondary);
  color: var(--color-text-secondary);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
}

/* Token Usage Display */
.token-usage-display {
  display: grid;
  gap: var(--space-8);
}

.usage-overview {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
}

.usage-card {
  background: var(--color-surface-secondary);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  position: relative;
  overflow: hidden;
  transition: all var(--duration-normal) var(--ease-in-out);
}

.usage-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-border-secondary);
}

.usage-card.free-tokens {
  border-left: 4px solid #10b981;
}

.usage-card.paid-tokens {
  border-left: 4px solid var(--color-primary-start);
}

.usage-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.usage-icon {
  font-size: var(--font-size-xl);
}

.usage-header h4 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin: 0;
}

.usage-stats {
  text-align: center;
  margin-bottom: var(--space-4);
}

.usage-amount {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  line-height: 1;
}

.usage-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
  margin-top: var(--space-1);
}

.usage-bar {
  background: rgba(255, 255, 255, 0.1);
  height: 8px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: var(--space-3);
  position: relative;
}

.usage-progress {
  height: 100%;
  border-radius: var(--radius-sm);
  transition: width var(--duration-slow) var(--ease-out);
  position: relative;
}

.usage-progress::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  animation: shimmer 2s infinite;
}

.free-progress {
  background: linear-gradient(90deg, #10b981, #34d399);
}

.paid-progress {
  background: var(--gradient-primary);
}

.usage-details {
  display: flex;
  justify-content: space-between;
  font-size: var(--font-size-sm);
}

.usage-remaining {
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
}

.usage-limit {
  color: var(--color-text-tertiary);
}

/* Usage Chart */
.usage-chart {
  background: var(--color-surface-secondary);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  margin-top: var(--space-6);
}

.usage-chart h4 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin: 0 0 var(--space-6) 0;
  text-align: center;
}

.chart-container {
  margin-bottom: var(--space-4);
}

.chart-bars {
  display: flex;
  justify-content: space-between;
  align-items: end;
  height: 120px;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.chart-bar {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: end;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  overflow: hidden;
  position: relative;
  transition: all var(--duration-normal) var(--ease-in-out);
}

.chart-bar:hover {
  transform: scaleY(1.05);
}

.bar-free,
.bar-paid {
  width: 100%;
  transition: all var(--duration-slow) var(--ease-out);
}

.bar-free {
  background: linear-gradient(180deg, #10b981, #34d399);
}

.bar-paid {
  background: var(--gradient-primary);
}

.chart-labels {
  display: flex;
  justify-content: space-between;
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  font-weight: var(--font-weight-medium);
}

.chart-legend {
  display: flex;
  justify-content: center;
  gap: var(--space-6);
  margin-top: var(--space-4);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.legend-color {
  width: 12px;
  height: 12px;
  border-radius: var(--radius-sm);
}

.free-color {
  background: linear-gradient(45deg, #10b981, #34d399);
}

.paid-color {
  background: var(--gradient-primary);
}

/* Shimmer animation for progress bars */
@keyframes shimmer {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

/* Account Management Features */
.account-management {
  margin-top: var(--space-16);
}

.account-management h3 {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-8);
  text-align: center;
}

.management-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: var(--space-6);
  margin-top: var(--space-8);
}

.management-card {
  background: var(--color-surface-secondary);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: all var(--duration-normal) var(--ease-in-out);
}

.management-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-border-secondary);
}

.card-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-border-primary);
}

.card-icon {
  font-size: var(--font-size-xl);
}

.card-header h4 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin: 0;
}

.card-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

/* Profile Settings */
.setting-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.setting-label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
}

.setting-input {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.mock-input,
.api-input {
  flex: 1;
  background: var(--color-surface-primary);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-sm);
  padding: var(--space-3);
  color: var(--color-text-primary);
  font-size: var(--font-size-sm);
  transition: all var(--duration-normal) var(--ease-in-out);
}

.mock-input:focus,
.api-input:focus {
  outline: none;
  border-color: var(--color-primary-start);
  box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
}

.edit-btn,
.toggle-visibility,
.copy-btn {
  background: var(--color-surface-primary);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-sm);
  padding: var(--space-2);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-in-out);
  font-size: var(--font-size-sm);
}

.edit-btn:hover,
.toggle-visibility:hover,
.copy-btn:hover {
  background: var(--color-surface-secondary);
  color: var(--color-text-primary);
  border-color: var(--color-border-secondary);
}

.setting-toggles {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.toggle-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.toggle-switch {
  width: 44px;
  height: 24px;
  background: var(--color-surface-primary);
  border-radius: 12px;
  position: relative;
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-in-out);
  border: 1px solid var(--color-border-primary);
}

.toggle-switch.active {
  background: var(--color-primary-start);
  border-color: var(--color-primary-start);
}

.toggle-slider {
  width: 18px;
  height: 18px;
  background: var(--color-text-primary);
  border-radius: 50%;
  position: absolute;
  top: 2px;
  left: 2px;
  transition: all var(--duration-normal) var(--ease-in-out);
  box-shadow: var(--shadow-sm);
}

.toggle-switch.active .toggle-slider {
  transform: translateX(20px);
}

/* Subscription Management */
.subscription-status {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}

.status-badge {
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.status-badge.active {
  background: rgba(16, 185, 129, 0.2);
  color: #10b981;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.status-badge.inactive {
  background: rgba(156, 163, 175, 0.2);
  color: #9ca3af;
  border: 1px solid rgba(156, 163, 175, 0.3);
}

.plan-details {
  flex: 1;
}

.plan-name {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-1);
}

.plan-price {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary-start);
  margin-bottom: var(--space-1);
}

.next-billing {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
}

.subscription-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}

.action-btn {
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-in-out);
  border: 1px solid transparent;
}

.action-btn.primary {
  background: var(--gradient-primary);
  color: var(--color-text-primary);
}

.action-btn.primary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.action-btn.secondary {
  background: var(--color-surface-primary);
  color: var(--color-text-secondary);
  border-color: var(--color-border-primary);
}

.action-btn.secondary:hover {
  background: var(--color-surface-secondary);
  color: var(--color-text-primary);
  border-color: var(--color-border-secondary);
}

.action-btn.danger {
  background: rgba(239, 68, 68, 0.1);
  color: #ef4444;
  border-color: rgba(239, 68, 68, 0.3);
}

.action-btn.danger:hover {
  background: rgba(239, 68, 68, 0.2);
  border-color: rgba(239, 68, 68, 0.5);
}

.billing-history h5 {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-3);
}

.billing-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-3);
  background: var(--color-surface-primary);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-2);
  font-size: var(--font-size-sm);
}

.billing-date {
  color: var(--color-text-secondary);
}

.billing-amount {
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}

.billing-status.paid {
  color: #10b981;
  font-weight: var(--font-weight-medium);
}

/* API Management */
.api-section {
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-sm);
  padding: var(--space-4);
  background: var(--color-surface-primary);
}

.api-section h5 {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-3);
}

.api-key-display {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.api-actions {
  display: flex;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.connection-status {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.status-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.status-indicator.connected {
  background: #10b981;
  box-shadow: 0 0 8px rgba(16, 185, 129, 0.5);
}

.test-connection-btn {
  background: var(--color-surface-secondary);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-sm);
  padding: var(--space-2) var(--space-3);
  color: var(--color-text-secondary);
  font-size: var(--font-size-xs);
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-in-out);
}

.test-connection-btn:hover {
  background: var(--color-surface-primary);
  color: var(--color-text-primary);
}

/* Device Management */
.current-device,
.device-transfer,
.device-history {
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-sm);
  padding: var(--space-4);
  background: var(--color-surface-primary);
}

.current-device h5,
.device-transfer h5,
.device-history h5 {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-3);
}

.device-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.device-details {
  flex: 1;
}

.device-name {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  margin-bottom: var(--space-1);
}

.device-id,
.registration-date {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-1);
}

.transfer-description {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
  line-height: var(--line-height-relaxed);
}

.transfer-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.transfer-warning {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3);
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  color: #ef4444;
}

.warning-icon {
  font-size: var(--font-size-base);
}

.device-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-3);
  background: var(--color-surface-secondary);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-2);
}

/* ==========================================================================
   Advantages Section
   ========================================================================== */

.advantages-section {
  min-height: 100vh;
  background: var(--color-bg-primary);
  padding: var(--spacing-section-padding-desktop) 0;
  position: relative;
  /* Create stacking context to keep internal overlays below text */
  isolation: isolate;
}

.advantages-container {
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: 0 var(--space-5);
  text-align: center;
  margin-top: -40px;
}

.advantages-section h2 {
  font-size: var(--font-size-section-h2);
  font-weight: var(--font-weight-extrabold);
  margin-bottom: var(--space-20);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  /* Prevent descender clipping with gradient text */
  line-height: 1.2;
  display: inline-block;
  padding-bottom: 0.15em;
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-8);
  max-width: 1200px;
  margin: 0 auto;
  align-items: start;
}

.advantage-card {
  background: var(--color-surface-primary);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-xl);
  padding: var(--spacing-card-padding);
  text-align: left;
  position: relative;
  overflow: hidden;
  transition: all var(--duration-normal) var(--ease-in-out);
  backdrop-filter: var(--backdrop-blur-sm);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.advantage-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-in-out);
}

.advantage-card:hover::before {
  opacity: 1;
}

.advantage-card:hover {
  transform: translateY(-8px);
  background: var(--color-surface-secondary);
  border-color: var(--color-border-secondary);
  box-shadow: var(--shadow-xl);
}

.advantage-icon {
  font-size: 3rem;
  margin-bottom: var(--space-4);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
  line-height: 1;
  text-align: center;
}

.advantage-card h3 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-4);
  line-height: var(--line-height-snug);
}

.advantage-card p {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-4);
  flex-grow: 1;
  padding-right: var(--space-12);
}

.advantage-details {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
  line-height: var(--line-height-normal);
  margin-top: auto;
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border-primary);
  transition: color var(--duration-normal) var(--ease-in-out);
}

.advantage-card:hover .advantage-details {
  color: var(--color-text-secondary);
}

/* Scroll-triggered animations */
.advantage-card {
  opacity: 0;
  transform: translateY(50px);
  animation: none;
}

.advantage-card.animate-in {
  animation: advantageFadeIn 0.8s ease-out forwards;
}

.advantage-card.animate-in:nth-child(1) { animation-delay: 0.1s; }
.advantage-card.animate-in:nth-child(2) { animation-delay: 0.2s; }
.advantage-card.animate-in:nth-child(3) { animation-delay: 0.3s; }
.advantage-card.animate-in:nth-child(4) { animation-delay: 0.4s; }
.advantage-card.animate-in:nth-child(5) { animation-delay: 0.5s; }
.advantage-card.animate-in:nth-child(6) { animation-delay: 0.6s; }
.advantage-card.animate-in:nth-child(7) { animation-delay: 0.7s; }
.advantage-card.animate-in:nth-child(8) { animation-delay: 0.8s; }
.advantage-card.animate-in:nth-child(9) { animation-delay: 0.9s; }
.advantage-card.animate-in:nth-child(10) { animation-delay: 1.0s; }

/* Enhanced hover effects */
.advantage-card:hover .advantage-icon {
  transform: translateY(-2px) scale(1.03);
  transition: transform var(--duration-fast) var(--ease-in-out);
}

.advantage-card:hover h3 {
  color: var(--color-primary-start);
  transition: color var(--duration-normal) var(--ease-in-out);
}

.advantage-card:hover p {
  color: var(--color-text-primary);
  transition: color var(--duration-normal) var(--ease-in-out);
}

/* Subtle glow effect on hover */
.advantage-card:hover {
  box-shadow: 
    var(--shadow-xl),
    0 0 30px rgba(99, 102, 241, 0.15),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

/* Focus states for accessibility */
.advantage-card:focus-within {
  outline: 2px solid var(--color-primary-start);
  outline-offset: 4px;
}

/* Animation keyframes */
@keyframes advantageFadeIn {
  from {
    opacity: 0;
    transform: translateY(50px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes iconPulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.03); }
  100% { transform: scale(1); }
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */

@media (max-width: 768px) {
  .hero {
    padding-top: 120px;
  }

  .nav-links {
    display: none;
  }

  .mobile-menu-toggle {
    display: flex;
  }

  .problem-content {
    grid-template-columns: 1fr;
    gap: var(--space-10);
  }

  .demo-container {
    grid-template-columns: 1fr;
    gap: var(--space-10);
  }

  .hexagon-grid {
    gap: var(--space-3);
    max-width: 400px;
  }

  .hexagon {
    width: 130px;
    height: 130px;
    margin: var(--space-2);
  }

  .hexagon-content {
    padding: var(--space-4) var(--space-3);
    max-width: 100px;
  }

  .hexagon-icon {
    display: none;
  }

  .hexagon h3 {
    font-size: clamp(0.75rem, 2.5vw, 0.92rem);
  }

  .hexagon p {
    font-size: clamp(0.6rem, 2vw, 0.73rem);
  }

  /* Advantages Section Mobile */
  .advantages-section {
    padding: var(--spacing-section-padding-mobile) 0;
  }

  .advantages-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }

  .advantage-card {
    padding: var(--space-6);
  }

  .advantage-icon {
    font-size: 2.5rem;
  }

  .advantage-card h3 {
    font-size: var(--font-size-lg);
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  /* Advantages Section Tablet */
  .advantages-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
  }
}

@media (min-width: 1025px) {
  /* Advantages Section Desktop */
  .advantages-grid {
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  }
}
/* =====
=====================================================================
   Product Comparison Section
   ========================================================================== */

.comparison-section {
  min-height: 100vh;
  /* Animated gradient backdrop */
  --grad-1: rgba(99, 102, 241, 0.20);
  --grad-2: rgba(139, 92, 246, 0.16);
  --grad-3: rgba(236, 72, 153, 0.14);
  --grad-4: rgba(34, 197, 94, 0.10);
  background:
    radial-gradient(1200px 1200px at 10% 10%, var(--grad-1), transparent 60%),
    radial-gradient(900px 900px at 85% 15%, var(--grad-2), transparent 60%),
    radial-gradient(1000px 1000px at 20% 85%, var(--grad-3), transparent 60%),
    radial-gradient(800px 800px at 90% 80%, var(--grad-4), transparent 60%),
    var(--color-bg-primary);
  background-size: 200% 200%;
  animation: comparisonGradientShift 18s ease-in-out infinite alternate;
  padding: var(--spacing-section-padding-desktop) 0;
  position: relative;
}

@keyframes comparisonGradientShift {
  0%   { background-position: 0% 0%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 100%; }
}

.comparison-container {
  max-width: var(--container-xl);
  margin: 0 auto;
  /* Ensure at least 10px inner padding from border to text, and maintain ~10% responsive gutters */
  padding-left: max(10px, 10vw, var(--space-5));
  padding-right: max(10px, 10vw, var(--space-5));
  text-align: center;
  border: 2px solid #4C1D95; /* dark purple */
  border-radius: var(--radius-2xl);
}

.comparison-section h2 {
  font-size: var(--font-size-section-h2);
  font-weight: var(--font-weight-extrabold);
  margin-bottom: var(--space-8);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: var(--line-height-snug);
  padding-top: 20px; /* add top padding as requested */
  padding-bottom: 0.15em;
  display: inline-block;
}

.comparison-intro {
  font-size: clamp(0.9rem, 2.2vw, 1.1rem); /* smaller than hero-subtitle */
  color: var(--color-text-secondary);
  margin-bottom: var(--space-16);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  line-height: var(--line-height-relaxed);
  text-align: left;
}

/* Paragraphs in comparison section: inherit hero-subtitle tone but smaller.
   Inline styles on <p> take precedence and are not overridden. */
.comparison-section p:not([style]) {
  font-family: var(--font-family-base, inherit);
  /* Scale roughly 30% between large and small viewports */
  font-size: clamp(0.8rem, 1.6vw, 1.15rem);
  line-height: var(--line-height-relaxed);
  color: var(--color-text-secondary);
}

/* Comparison intro structured blocks */
.comparison-intro .intro-block {
  margin: var(--space-6) 0;
}

.comparison-intro h4 {
  font-size: var(--font-size-lg);
  color: var(--color-text-primary);
  margin-bottom: var(--space-3);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.comparison-intro ul {
  list-style: none;
  padding-left: 0;
  margin: 0;
  display: grid;
  gap: var(--space-2);
}

.comparison-intro ul li::before {
  content: '•';
  color: var(--color-primary-start);
  margin-right: var(--space-2);
}

.comparison-intro ul li {
  color: var(--color-text-secondary);
}

.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-10);
  max-width: 1000px;
  margin: 0 auto;
  align-items: start;
}

.comparison-column {
  background: var(--color-surface-primary);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-xl);
  padding: 0;
  position: relative;
  overflow: hidden;
  transition: all var(--duration-normal) var(--ease-in-out);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.comparison-column:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
  border-color: var(--color-border-secondary);
}

.desktop-column {
  border: 2px solid var(--color-primary-start);
  position: relative;
}

.desktop-column::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
}

.comparison-header {
  padding: var(--space-8);
  text-align: center;
  position: relative;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.05));
  border-bottom: 1px solid var(--color-border-primary);
}

.desktop-column .comparison-header {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(139, 92, 246, 0.1));
}

.comparison-icon {
  font-size: 3rem;
  display: block;
  margin-bottom: var(--space-4);
  line-height: 1.2;
  padding-bottom: calc(var(--space-2) + 2px);
}

.comparison-header h3 {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.comparison-subtitle {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  margin: 0;
  font-weight: var(--font-weight-medium);
}

.popular-badge {
  position: absolute;
  top: -1px;
  right: var(--space-6);
  background: var(--gradient-primary);
  color: var(--color-text-primary);
  padding: var(--space-2) var(--space-4);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.comparison-features {
  padding: var(--space-8);
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.comparison-cta {
  padding: var(--space-8);
  padding-top: 0;
  margin-top: auto;
}

.btn-demo,
.btn-desktop {
  display: inline-block;
  width: 100%;
  padding: var(--space-4) var(--space-6);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  text-decoration: none;
  text-align: center;
  transition: all var(--duration-normal) var(--ease-in-out);
  border: 2px solid transparent;
}

.btn-demo {
  background: var(--color-surface-secondary);
  color: var(--color-text-primary);
  border-color: var(--color-border-secondary);
}

.btn-demo:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-2px);
}

.btn-desktop {
  background: var(--gradient-primary);
  color: var(--color-text-primary);
  position: relative;
  overflow: hidden;
}

.btn-desktop::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--gradient-button-hover);
  transition: left var(--duration-slow) var(--ease-in-out);
}

.btn-desktop:hover::before {
  left: 100%;
}

.btn-desktop:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(99, 102, 241, 0.4);
}

/* Feature list styles */
.feature-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  margin-bottom: var(--space-4);
  padding: var(--space-3);
  border-radius: var(--radius-md);
  transition: all var(--duration-normal) var(--ease-in-out);
}

.feature-item:hover {
  background: rgba(255, 255, 255, 0.05);
}

.feature-icon {
  font-size: 1.2rem;
  margin-right: var(--space-3);
  margin-top: var(--space-1);
  flex-shrink: 0;
}

.feature-content {
  flex-grow: 1;
}

.feature-title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-1);
  line-height: var(--line-height-snug);
}

.feature-description {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height-normal);
  margin: 0;
}

.feature-highlight {
  background: rgba(99, 102, 241, 0.1);
  border-left: 3px solid var(--color-primary-start);
}

.feature-limitation {
  background: rgba(255, 193, 7, 0.1);
  border-left: 3px solid #ffc107;
}

.feature-limitation .feature-icon {
  color: #ffc107;
}

/* Responsive design for comparison section */
@media (max-width: 768px) {
  .comparison-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
  /* Ensure minimum inner padding on small screens */
  .comparison-container {
    padding-left: max(5px, 10vw, var(--space-4));
    padding-right: max(5px, 10vw, var(--space-4));
  }
  /* Reduce paragraph size further on small screens */
  .comparison-section p:not([style]) {
    font-size: clamp(0.8rem, 3.5vw, 0.98rem);
  }
  
  .popular-badge {
    position: static;
    display: inline-block;
    margin-top: var(--space-2);
    border-radius: var(--radius-lg);
  }
  
  .comparison-column {
    margin-bottom: var(--space-6);
  }
}
/* ==========================================================================
   Pricing Section Components
   ========================================================================== */

.pricing-section {
  min-height: 100vh;
  background: var(--color-bg-primary);
  padding: var(--spacing-section-padding-desktop) 0;
  position: relative;
  display: flex;
  align-items: center;
}

.pricing-container {
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: 0 var(--space-5);
  text-align: center;
}

.pricing-section h2 {
  font-size: var(--font-size-section-h2);
  font-weight: var(--font-weight-extrabold);
  margin-bottom: var(--space-16);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: var(--line-height-snug);
  padding-bottom: 0.15em;
  display: inline-block;
}

.pricing-display {
  display: flex;
  justify-content: center;
  align-items: center;
  max-width: 800px;
  margin: 0 auto;
}

.pricing-card {
  background: var(--color-surface-primary);
  border: 2px solid var(--color-border-secondary);
  border-radius: var(--radius-xl);
  padding: var(--space-12);
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: all var(--duration-normal) var(--ease-in-out);
  backdrop-filter: var(--backdrop-blur-sm);
  width: 100%;
  max-width: 600px;
}

.pricing-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.pricing-card:hover {
  transform: translateY(-8px) scale(1.02);
  border-color: rgba(99, 102, 241, 0.5);
  box-shadow: 0 20px 60px rgba(99, 102, 241, 0.2);
}

.pricing-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: var(--space-8);
  position: relative;
}

.pricing-icon {
  font-size: 3rem;
  margin-bottom: var(--space-4);
  display: block;
}

.pricing-title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-3);
  margin-top: 0;
}

.pricing-badge {
  background: var(--gradient-primary);
  color: var(--color-text-primary);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-2xl);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.pricing-amount {
  display: flex;
  align-items: baseline;
  justify-content: center;
  margin-bottom: var(--space-8);
  gap: var(--space-2);
}

.currency {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary-start);
}

.price {
  font-size: 4.5rem;
  font-weight: var(--font-weight-black);
  color: var(--color-text-primary);
  line-height: 1;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.period {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
}

.pricing-description {
  margin-bottom: var(--space-10);
}

.pricing-description p {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin: 0;
}

.pricing-benefits {
  margin-bottom: var(--space-10);
  text-align: left;
}

.pricing-benefits h4 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-6);
  text-align: center;
}

.benefits-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.benefit-item {
  display: flex;
  align-items: flex-start;
  margin-bottom: var(--space-4);
  padding: var(--space-3);
  border-radius: var(--radius-md);
  transition: all var(--duration-normal) var(--ease-in-out);
}

.benefit-item:hover {
  background: rgba(99, 102, 241, 0.05);
  transform: translateX(4px);
}

.benefit-icon {
  color: var(--color-primary-start);
  font-weight: var(--font-weight-bold);
  margin-right: var(--space-3);
  font-size: var(--font-size-lg);
  flex-shrink: 0;
  margin-top: 2px;
}

.benefit-text {
  color: var(--color-text-secondary);
  font-size: var(--font-size-base);
  line-height: var(--line-height-relaxed);
  font-weight: var(--font-weight-medium);
}

.subscription-explanation {
  margin-top: var(--space-8);
}

.explanation-card {
  background: rgba(99, 102, 241, 0.05);
  border: 1px solid rgba(99, 102, 241, 0.2);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  text-align: left;
}

.explanation-card h5 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-4);
  text-align: center;
}

.explanation-card p {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-6);
  text-align: center;
}

.value-highlights {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-4);
}

.value-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  border-radius: var(--radius-md);
  transition: all var(--duration-normal) var(--ease-in-out);
}

.value-item:hover {
  background: rgba(99, 102, 241, 0.1);
  transform: scale(1.02);
}

.value-icon {
  font-size: var(--font-size-xl);
  flex-shrink: 0;
}

.value-text {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
  line-height: var(--line-height-normal);
}

/* Responsive Design for Pricing Section */
@media (max-width: 768px) {
  .pricing-section {
    padding: var(--spacing-section-padding-mobile) 0;
  }
  
  .pricing-container {
    padding: 0 var(--space-4);
  }
  
  .pricing-card {
    padding: var(--space-8);
    margin: 0 var(--space-2);
    max-width: none;
    width: 100%;
  }
  
  .price {
    font-size: 3.5rem;
  }
  
  .currency {
    font-size: var(--font-size-2xl);
  }
  
  .period {
    font-size: var(--font-size-lg);
  }
  
  .value-highlights {
    grid-template-columns: 1fr;
  }
  
  .pricing-benefits {
    text-align: left;
  }
}

@media (max-width: 480px) {
  .pricing-container {
    padding: 0 var(--space-3);
  }
  
  .pricing-card {
    padding: var(--space-6);
    margin: 0;
    border-radius: var(--radius-lg);
  }
  
  .pricing-section h2 {
    font-size: clamp(1.5rem, 6vw, 2.5rem);
    margin-bottom: var(--space-8);
  }
  
  .pricing-amount {
    flex-direction: column;
    align-items: center;
    gap: var(--space-1);
  }
  
  .price {
    font-size: 2.5rem;
  }
  
  .currency {
    font-size: var(--font-size-xl);
  }
  
  .period {
    font-size: var(--font-size-base);
  }
  
  .pricing-description p {
    font-size: var(--font-size-sm);
  }
  
  .benefit-text {
    font-size: var(--font-size-sm);
  }
}

/* Extra small mobile devices for pricing */
@media (max-width: 430px) {
  .pricing-container {
    padding: 0 var(--space-2);
  }
  
  .pricing-display {
    margin: 0;
  }
  
  .pricing-card {
    padding: var(--space-5);
    margin: 0;
  }
  
  .pricing-section h2 {
    font-size: clamp(1.25rem, 5vw, 2rem);
    margin-bottom: var(--space-6);
    padding: 0 var(--space-2);
  }
}

/* ==========================================================================
   Call-to-Action Section Components
   ========================================================================== */

/* ==========================================================================
   Subscription Features Showcase
   ========================================================================== */

.subscription-features {
  margin-top: var(--space-20);
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

.features-intro {
  text-align: center;
  margin-bottom: var(--space-16);
}

.features-intro h3 {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-6);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.features-intro p {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  max-width: 600px;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--space-8);
  margin-top: var(--space-12);
}

.feature-showcase-card {
  background: var(--color-surface-primary);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: all var(--duration-normal) var(--ease-in-out);
  position: relative;
  overflow: hidden;
}

.feature-showcase-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--duration-normal) var(--ease-in-out);
}

.feature-showcase-card:hover {
  transform: translateY(-4px);
  border-color: rgba(99, 102, 241, 0.3);
  box-shadow: 0 12px 40px rgba(99, 102, 241, 0.15);
}

.feature-showcase-card:hover::before {
  transform: scaleX(1);
}

.feature-showcase-header {
  display: flex;
  align-items: center;
  margin-bottom: var(--space-6);
  gap: var(--space-4);
}

.feature-showcase-icon {
  font-size: var(--font-size-2xl);
  flex-shrink: 0;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.feature-showcase-header h4 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin: 0;
  line-height: var(--line-height-snug);
}

.feature-showcase-content p {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-6);
}

.feature-details {
  list-style: none;
  padding: 0;
  margin: 0;
}

.feature-details li {
  display: flex;
  align-items: flex-start;
  margin-bottom: var(--space-3);
  padding: var(--space-2);
  border-radius: var(--radius-sm);
  transition: all var(--duration-normal) var(--ease-in-out);
  position: relative;
}

.feature-details li::before {
  content: "▸";
  color: var(--color-primary-start);
  font-weight: var(--font-weight-bold);
  margin-right: var(--space-3);
  flex-shrink: 0;
  font-size: var(--font-size-sm);
  margin-top: 2px;
}

.feature-details li:hover {
  background: rgba(99, 102, 241, 0.05);
  transform: translateX(4px);
}

.feature-details li:hover::before {
  color: var(--color-primary-mid);
}

.feature-details li {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
  line-height: var(--line-height-normal);
  font-weight: var(--font-weight-medium);
}

/* Responsive Design for Subscription Features */
@media (max-width: 768px) {
  .subscription-features {
    margin-top: var(--space-16);
  }
  
  .features-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
  
  .feature-showcase-card {
    padding: var(--space-6);
  }
  
  .feature-showcase-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
  }
  
  .feature-showcase-icon {
    font-size: var(--font-size-xl);
  }
  
  .feature-showcase-header h4 {
    font-size: var(--font-size-lg);
  }
}

@media (max-width: 480px) {
  .features-intro h3 {
    font-size: var(--font-size-2xl);
  }
  
  .features-intro p {
    font-size: var(--font-size-base);
  }
  
  .feature-showcase-card {
    padding: var(--space-5);
  }
  
  .feature-details li {
    padding: var(--space-1);
  }
}/* ====
======================================================================
   Pricing Call-to-Action
   ========================================================================== */

.pricing-cta {
  margin-top: var(--space-20);
  text-align: center;
}

.pricing-cta-content {
  max-width: 700px;
  margin: 0 auto;
  padding: var(--space-12);
  background: var(--color-surface-secondary);
  border: 2px solid var(--color-border-secondary);
  border-radius: var(--radius-xl);
  position: relative;
  overflow: hidden;
  backdrop-filter: var(--backdrop-blur-sm);
}

.pricing-cta-content::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
}

.pricing-cta h3 {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-6);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.pricing-cta p {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-10);
}

.pricing-cta-buttons {
  display: flex;
  gap: var(--space-6);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-10);
}

.btn-subscribe {
  background: var(--gradient-primary);
  color: var(--color-text-primary);
  padding: var(--space-5) var(--space-8);
  border: none;
  border-radius: var(--radius-2xl);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  text-decoration: none;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  overflow: hidden;
  transition: all var(--duration-normal) var(--ease-in-out);
  cursor: pointer;
  min-width: 220px;
  text-align: center;
  box-shadow: 0 8px 25px rgba(99, 102, 241, 0.3);
}

.btn-subscribe::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--gradient-button-hover);
  transition: left var(--duration-slow) var(--ease-in-out);
}

.btn-subscribe:hover::before {
  left: 100%;
}

.btn-subscribe:hover {
  transform: translateY(-4px) scale(1.03);
  box-shadow: 0 15px 45px rgba(99, 102, 241, 0.4);
}

.btn-subscribe:active {
  transform: translateY(-2px) scale(0.98);
  transition-duration: 0.1s;
}

.btn-try-first {
  background: var(--color-surface-primary);
  color: var(--color-text-primary);
  padding: var(--space-5) var(--space-8);
  border: 2px solid var(--color-border-secondary);
  border-radius: var(--radius-2xl);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  text-decoration: none;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  transition: all var(--duration-normal) var(--ease-in-out);
  backdrop-filter: var(--backdrop-blur-sm);
  min-width: 220px;
  text-align: center;
}

.btn-try-first:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.4);
  transform: translateY(-4px) scale(1.03);
  box-shadow: 0 12px 35px rgba(255, 255, 255, 0.1);
}

.btn-try-first:active {
  transform: translateY(-2px) scale(0.98);
  transition-duration: 0.1s;
}

.btn-subscribe .btn-text,
.btn-try-first .btn-text {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-1);
  position: relative;
  z-index: 2;
}

.btn-subscribe .btn-subtitle,
.btn-try-first .btn-subtitle {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-normal);
  opacity: 0.8;
  position: relative;
  z-index: 2;
  transition: opacity var(--duration-normal) var(--ease-in-out);
}

.btn-subscribe:hover .btn-subtitle,
.btn-try-first:hover .btn-subtitle {
  opacity: 1;
}

/* Enhanced focus states for accessibility */
.btn-subscribe:focus,
.btn-try-first:focus {
  outline: 2px solid var(--color-primary-start);
  outline-offset: 4px;
}

.pricing-guarantee {
  border-top: 1px solid var(--color-border-primary);
  padding-top: var(--space-6);
}

.guarantee-items {
  display: flex;
  justify-content: center;
  gap: var(--space-8);
  flex-wrap: wrap;
}

.guarantee-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.guarantee-icon {
  color: var(--color-primary-start);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-sm);
}

.guarantee-text {
  color: var(--color-text-tertiary);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
}

/* Pulse animation for subscribe button */
.btn-subscribe::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.6s ease, height 0.6s ease;
  z-index: 1;
}

.btn-subscribe:hover::after {
  width: 300px;
  height: 300px;
  opacity: 0;
}

/* Ripple effect on click */
@keyframes ripple {
  0% {
    transform: translate(-50%, -50%) scale(0);
    opacity: 1;
  }
  100% {
    transform: translate(-50%, -50%) scale(4);
    opacity: 0;
  }
}

.btn-subscribe:active::after,
.btn-try-first:active::after {
  animation: ripple 0.6s ease-out;
}

/* Responsive Design for Pricing CTA */
@media (max-width: 768px) {
  .pricing-cta {
    margin-top: var(--space-16);
  }
  
  .pricing-cta-content {
    padding: var(--space-8);
    margin: 0 var(--space-4);
  }
  
  .pricing-cta h3 {
    font-size: var(--font-size-2xl);
  }
  
  .pricing-cta p {
    font-size: var(--font-size-base);
  }
  
  .pricing-cta-buttons {
    flex-direction: column;
    align-items: center;
    gap: var(--space-4);
  }
  
  .btn-subscribe,
  .btn-try-first {
    min-width: 280px;
    width: 100%;
    max-width: 320px;
  }
  
  .guarantee-items {
    gap: var(--space-6);
  }
}

@media (max-width: 480px) {
  .pricing-cta-content {
    padding: var(--space-6);
  }
  
  .pricing-cta h3 {
    font-size: var(--font-size-xl);
  }
  
  .guarantee-items {
    flex-direction: column;
    gap: var(--space-3);
  }
  
  .btn-subscribe,
  .btn-try-first {
    padding: var(--space-4) var(--space-6);
  }
}
/* 
==========================================================================
   Desktop Application Capabilities Section
   ========================================================================== */

.desktop-section {
  display: flex;
  align-items: center;
  min-height: 100vh;
  background: var(--color-bg-primary);
  padding: var(--spacing-section-padding-desktop) 0;
  position: relative;
  overflow: hidden;
}

.desktop-container {
  max-width: var(--max-width-content);
  margin: 0 auto;
  padding: 0 var(--space-5);
  width: 100%;
}

.desktop-section h2 {
  text-align: center;
  font-size: var(--font-size-section-h2);
  font-weight: var(--font-weight-extrabold);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-4);
  line-height: var(--line-height-snug);
  padding-bottom: 0.15em;
  display: inline-block;
}

.desktop-intro {
  text-align: center;
  font-size: var(--font-size-xl);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-12);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.desktop-feature {
  margin-bottom: var(--space-16);
}

.feature-header {
  text-align: center;
  margin-bottom: var(--space-8);
}

.feature-header .feature-icon {
  font-size: 3rem;
  display: block;
  margin-bottom: var(--space-4);
}

.feature-header h3 {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.feature-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin: 0;
}

/* Project Browser Mockup Styles */
.mockup-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
  max-width: 1200px;
  margin: 0 auto;
}

.project-creation-mockup,
.project-browser-mockup {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.mockup-header,
.browser-header {
  background: var(--color-bg-tertiary);
  padding: var(--space-4);
  border-bottom: 1px solid var(--color-border-primary);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.mockup-header h4,
.browser-title h4 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin: 0;
}

.mockup-close {
  background: none;
  border: none;
  color: var(--color-text-secondary);
  font-size: var(--font-size-xl);
  cursor: pointer;
  padding: var(--space-1);
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast) var(--ease-in-out);
}

.mockup-close:hover {
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
}

.mockup-content {
  padding: var(--space-6);
}

.form-group {
  margin-bottom: var(--space-4);
}

.form-group label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: var(--space-3);
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-sm);
  color: var(--color-text-primary);
  font-size: var(--font-size-base);
  transition: all var(--duration-fast) var(--ease-in-out);
}

.form-group textarea {
  min-height: 100px;
  resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-primary-start);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.mockup-actions {
  display: flex;
  gap: var(--space-3);
  justify-content: flex-end;
  margin-top: var(--space-6);
}

/* Project Browser Styles */
.browser-title {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.project-count {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  background: var(--color-bg-primary);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
}

.browser-controls {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.btn-icon {
  background: none;
  border: 1px solid var(--color-border-primary);
  color: var(--color-text-secondary);
  padding: var(--space-2);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-in-out);
  font-size: var(--font-size-sm);
}

.btn-icon:hover {
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
  border-color: var(--color-primary-start);
}

.btn-icon.active {
  background: var(--color-primary-start);
  color: white;
  border-color: var(--color-primary-start);
}

.project-list {
  padding: var(--space-4);
}

.project-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-4);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-3);
  transition: all var(--duration-fast) var(--ease-in-out);
  cursor: pointer;
}

.project-item:hover {
  background: var(--color-bg-primary);
  border-color: var(--color-primary-start);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.project-item.active {
  background: var(--color-bg-primary);
  border-color: var(--color-primary-start);
  box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
}

.project-info {
  flex: 1;
}

.project-info h5 {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin: 0 0 var(--space-2) 0;
}

.project-description {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin: 0 0 var(--space-2) 0;
  line-height: 1.4;
}

.project-meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.project-date {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
}

.project-status {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.status-active {
  background: rgba(34, 197, 94, 0.2);
  color: #22c55e;
}

.status-completed {
  background: rgba(59, 130, 246, 0.2);
  color: #3b82f6;
}

.status-paused {
  background: rgba(251, 191, 36, 0.2);
  color: #fbbf24;
}

.project-actions {
  display: flex;
  gap: var(--space-2);
  margin-left: var(--space-4);
}

/* Responsive Design for Desktop Section */
@media (max-width: 1024px) {
  .mockup-container {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
}

@media (max-width: 768px) {
  .desktop-section {
    padding: var(--spacing-section-padding-mobile) 0;
  }
  
  .desktop-container {
    padding: 0 var(--space-4);
  }
  
  .desktop-intro {
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-8);
  }
  
  .feature-header .feature-icon {
    font-size: 2.5rem;
  }
  
  .feature-header h3 {
    font-size: var(--font-size-xl);
  }
  
  .mockup-content {
    padding: var(--space-4);
  }
  
  .project-item {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
  }
  
  .project-actions {
    margin-left: 0;
    align-self: flex-end;
  }
}/* C
hat Configuration Mockup Styles */
.chat-config-mockup {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--space-6);
  max-width: 1400px;
  margin: 0 auto;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.config-sidebar {
  background: var(--color-bg-tertiary);
  border-right: 1px solid var(--color-border-primary);
}

.config-header {
  padding: var(--space-4);
  border-bottom: 1px solid var(--color-border-primary);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--color-bg-secondary);
}

.config-sections {
  padding: var(--space-4);
  max-height: 600px;
  overflow-y: auto;
}

.config-section {
  margin-bottom: var(--space-6);
}

.config-section h5 {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin: 0 0 var(--space-3) 0;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.config-item {
  margin-bottom: var(--space-4);
}

.config-item label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.input-with-slider {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.input-with-slider input[type="number"] {
  width: 100px;
  padding: var(--space-2);
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-sm);
  color: var(--color-text-primary);
  font-size: var(--font-size-sm);
}

.input-with-slider input[type="range"] {
  flex: 1;
  height: 6px;
  background: var(--color-bg-primary);
  border-radius: 3px;
  outline: none;
  appearance: none;
  -webkit-appearance: none;
}

.input-with-slider input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  background: var(--color-primary-start);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.input-with-slider input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  background: var(--color-primary-start);
  border-radius: 50%;
  cursor: pointer;
  border: none;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.config-help {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  margin-top: var(--space-1);
}

.radio-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.radio-option {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  cursor: pointer;
  padding: var(--space-3);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast) var(--ease-in-out);
}

.radio-option:hover {
  background: var(--color-bg-primary);
  border-color: var(--color-primary-start);
}

.radio-option input[type="radio"] {
  margin: 0;
  accent-color: var(--color-primary-start);
}

.radio-label {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.radio-label strong {
  color: var(--color-text-primary);
  font-size: var(--font-size-sm);
}

.radio-label small {
  color: var(--color-text-secondary);
  font-size: var(--font-size-xs);
  line-height: 1.3;
}

.toggle-label {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  cursor: pointer;
}

.toggle-slider {
  position: relative;
  width: 44px;
  height: 24px;
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border-primary);
  border-radius: 12px;
  transition: all var(--duration-fast) var(--ease-in-out);
}

.toggle-slider::before {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 18px;
  height: 18px;
  background: var(--color-text-secondary);
  border-radius: 50%;
  transition: all var(--duration-fast) var(--ease-in-out);
}

input[type="checkbox"]:checked + .toggle-slider {
  background: var(--color-primary-start);
  border-color: var(--color-primary-start);
}

input[type="checkbox"]:checked + .toggle-slider::before {
  transform: translateX(20px);
  background: white;
}

.toggle-text {
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
}

/* Chat Interface Preview Styles */
.chat-interface-preview {
  display: flex;
  flex-direction: column;
  background: var(--color-bg-primary);
}

.chat-header {
  padding: var(--space-4);
  border-bottom: 1px solid var(--color-border-primary);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--color-bg-secondary);
}

.chat-title {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.chat-title h4 {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin: 0;
}

.chat-status {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
}

.status-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-text-tertiary);
}

.status-indicator.active {
  background: #22c55e;
  box-shadow: 0 0 6px rgba(34, 197, 94, 0.4);
}

.chat-controls {
  display: flex;
  gap: var(--space-2);
}

.chat-messages {
  flex: 1;
  padding: var(--space-4);
  max-height: 300px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.message {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.user-message {
  align-items: flex-end;
}

.ai-message {
  align-items: flex-start;
}

.message-content {
  max-width: 80%;
  padding: var(--space-3);
  border-radius: var(--radius-sm);
  position: relative;
}

.user-message .message-content {
  background: var(--color-primary-start);
  color: white;
  border-bottom-right-radius: var(--radius-xs);
}

.ai-message .message-content {
  background: var(--color-bg-secondary);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border-primary);
  border-bottom-left-radius: var(--radius-xs);
}

.message-content p {
  margin: 0;
  font-size: var(--font-size-sm);
  line-height: 1.4;
}

.thinking-indicator {
  display: flex;
  gap: var(--space-1);
  margin-top: var(--space-2);
}

.thinking-dot {
  width: 6px;
  height: 6px;
  background: var(--color-text-secondary);
  border-radius: 50%;
  animation: thinking 1.4s infinite ease-in-out;
}

.thinking-dot:nth-child(2) {
  animation-delay: 0.2s;
}

.thinking-dot:nth-child(3) {
  animation-delay: 0.4s;
}

@keyframes thinking {
  0%, 80%, 100% {
    opacity: 0.3;
    transform: scale(0.8);
  }
  40% {
    opacity: 1;
    transform: scale(1);
  }
}

.message-meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
}

.quality-metrics {
  display: flex;
  gap: var(--space-2);
}

.metric {
  background: var(--color-bg-secondary);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-xs);
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
}

.chat-input-area {
  border-top: 1px solid var(--color-border-primary);
  background: var(--color-bg-secondary);
}

.resource-usage {
  display: flex;
  justify-content: space-between;
  padding: var(--space-2) var(--space-4);
  background: var(--color-bg-tertiary);
  border-bottom: 1px solid var(--color-border-primary);
}

.usage-item {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--font-size-xs);
}

.usage-label {
  color: var(--color-text-secondary);
}

.usage-value {
  color: var(--color-text-primary);
  font-weight: var(--font-weight-medium);
}

.input-container {
  display: flex;
  padding: var(--space-3);
  gap: var(--space-2);
}

.input-container input {
  flex: 1;
  padding: var(--space-3);
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-sm);
  color: var(--color-text-primary);
  font-size: var(--font-size-sm);
}

.btn-send {
  padding: var(--space-3);
  background: var(--color-primary-start);
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: var(--font-size-base);
  transition: all var(--duration-fast) var(--ease-in-out);
}

.btn-send:hover {
  background: var(--color-primary-end);
  transform: translateY(-1px);
}

/* Responsive Design for Chat Config */
@media (max-width: 1200px) {
  .chat-config-mockup {
    grid-template-columns: 1fr;
  }
  
  .config-sidebar {
    border-right: none;
    border-bottom: 1px solid var(--color-border-primary);
  }
  
  .config-sections {
    max-height: 400px;
  }
}

@media (max-width: 768px) {
  .input-with-slider {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-2);
  }
  
  .input-with-slider input[type="number"] {
    width: 100%;
  }
  
  .radio-option {
    padding: var(--space-2);
  }
  
  .resource-usage {
    flex-direction: column;
    gap: var(--space-2);
  }
  
  .message-content {
    max-width: 95%;
  }
}/* A
PI Integration Showcase Styles */
.api-integration-mockup {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
  max-width: 1400px;
  margin: 0 auto;
}

.api-config-panel {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.api-panel-header {
  padding: var(--space-4);
  background: var(--color-bg-tertiary);
  border-bottom: 1px solid var(--color-border-primary);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.api-provider {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.provider-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
}

.provider-info h4 {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin: 0 0 var(--space-1) 0;
}

.provider-description {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin: 0;
}

.connection-status {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
}

.connection-status.connected {
  background: rgba(34, 197, 94, 0.1);
  color: #22c55e;
}

.connection-status.disconnected {
  background: rgba(239, 68, 68, 0.1);
  color: #ef4444;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.connected .status-dot {
  background: #22c55e;
  box-shadow: 0 0 6px rgba(34, 197, 94, 0.4);
}

.disconnected .status-dot {
  background: #ef4444;
  box-shadow: 0 0 6px rgba(239, 68, 68, 0.4);
}

.api-config-content {
  padding: var(--space-4);
}

.config-group {
  margin-bottom: var(--space-5);
}

.config-group label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.api-key-input {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.api-key-input input {
  flex: 1;
  padding: var(--space-3);
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-sm);
  color: var(--color-text-primary);
  font-size: var(--font-size-sm);
  font-family: 'Courier New', monospace;
}

.model-selection {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.selected-models {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.model-tag {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--color-primary-start);
  color: white;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
}

.remove-model {
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.8);
  cursor: pointer;
  font-size: var(--font-size-sm);
  padding: 0;
  width: 16px;
  height: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: all var(--duration-fast) var(--ease-in-out);
}

.remove-model:hover {
  background: rgba(255, 255, 255, 0.2);
  color: white;
}

.usage-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
}

.usage-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--space-3);
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-sm);
}

.stat-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-1);
}

.stat-value {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
}

.endpoint-input {
  display: flex;
  gap: var(--space-2);
}

.endpoint-input input {
  flex: 1;
  padding: var(--space-3);
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-sm);
  color: var(--color-text-primary);
  font-size: var(--font-size-sm);
}

.local-models {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.model-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-3);
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-sm);
}

.model-item.unavailable {
  opacity: 0.6;
}

.model-name {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
}

.model-size {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
}

.model-status {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
}

.offline-notice {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3);
  background: rgba(251, 191, 36, 0.1);
  border: 1px solid rgba(251, 191, 36, 0.3);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  color: #f59e0b;
}

.notice-icon {
  font-size: var(--font-size-base);
}

.performance-settings {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
}

.setting-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.setting-item label {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-1);
}

.setting-item input {
  padding: var(--space-2);
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-sm);
  color: var(--color-text-primary);
  font-size: var(--font-size-sm);
}

.backend-selection-summary {
  grid-column: 1 / -1;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  margin-top: var(--space-4);
}

.backend-selection-summary h4 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin: 0 0 var(--space-4) 0;
  text-align: center;
}

.strategy-option {
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-sm);
  padding: var(--space-4);
  background: var(--color-bg-primary);
}

.strategy-option.active {
  border-color: var(--color-primary-start);
  background: rgba(99, 102, 241, 0.05);
}

.strategy-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.strategy-icon {
  font-size: var(--font-size-xl);
}

.strategy-header h5 {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin: 0;
}

.strategy-description {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin: 0 0 var(--space-4) 0;
  line-height: 1.5;
}

.strategy-rules {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.rule-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2);
  background: var(--color-bg-secondary);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
}

.rule-condition {
  color: var(--color-text-primary);
  font-weight: var(--font-weight-medium);
}

.rule-arrow {
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-bold);
}

.rule-action {
  color: var(--color-primary-start);
  font-weight: var(--font-weight-medium);
}

/* Responsive Design for API Integration */
@media (max-width: 1200px) {
  .api-integration-mockup {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
}

@media (max-width: 768px) {
  .api-panel-header {
    flex-direction: column;
    gap: var(--space-3);
    align-items: flex-start;
  }
  
  .api-key-input {
    flex-direction: column;
  }
  
  .endpoint-input {
    flex-direction: column;
  }
  
  .usage-stats {
    grid-template-columns: 1fr;
  }
  
  .performance-settings {
    grid-template-columns: 1fr;
  }
  
  .selected-models {
    flex-direction: column;
  }
  
  .rule-item {
    flex-direction: column;
    text-align: center;
    gap: var(--space-1);
  }
}/* ======
====================================================================
   Demo Application Preview Section
   ========================================================================== */

.demo-section {
  min-height: 100vh;
  background: linear-gradient(135deg, var(--color-bg-demo) 0%, var(--color-bg-demo-mid) 50%, var(--color-bg-demo-end) 100%);
  padding: var(--spacing-section-padding-desktop) 0;
  position: relative;
  overflow: hidden;
}

.demo-container {
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: 0 var(--space-5);
  text-align: center;
}

.demo-section h2 {
  font-size: var(--font-size-section-h2);
  font-weight: var(--font-weight-extrabold);
  margin-bottom: var(--space-6);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: var(--line-height-tight);
}

.demo-intro {
  font-size: var(--font-size-xl);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-16);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  line-height: var(--line-height-relaxed);
}

.demo-content {
  max-width: 1200px;
  margin: 0 auto;
}

/* Demo Interface Mockup */
.demo-interface-mockup {
  background: var(--color-surface-primary);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  border: 1px solid var(--color-border-secondary);
  backdrop-filter: var(--backdrop-blur-md);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.demo-browser-frame {
  background: var(--color-bg-primary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border-primary);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.browser-header {
  background: var(--color-bg-secondary);
  padding: var(--space-3) var(--space-5);
  display: flex;
  align-items: center;
  gap: var(--space-4);
  border-bottom: 1px solid var(--color-border-primary);
}

.browser-controls {
  display: flex;
  gap: var(--space-2);
}

.control-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.control-dot.red {
  background: #ff5f57;
}

.control-dot.yellow {
  background: #ffbd2e;
}

.control-dot.green {
  background: #28ca42;
}

.browser-url {
  flex: 1;
  background: var(--color-surface-primary);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border-primary);
}

.url-text {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  font-family: monospace;
}

/* Chat Interface */
.demo-chat-interface {
  height: 600px;
  display: flex;
  flex-direction: column;
  background: var(--color-bg-primary);
}

.chat-header {
  padding: var(--space-4) var(--space-6);
  background: var(--color-surface-primary);
  border-bottom: 1px solid var(--color-border-primary);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.chat-title {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.chat-icon {
  font-size: var(--font-size-xl);
}

.chat-title h3 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin: 0;
}

.chat-status {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.status-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #28ca42;
  animation: pulse 2s infinite;
}

.status-text {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

/* Chat Messages */
.chat-messages {
  flex: 1;
  padding: var(--space-6);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.message {
  display: flex;
  flex-direction: column;
  max-width: 80%;
}

.user-message {
  align-self: flex-end;
  align-items: flex-end;
}

.ai-message {
  align-self: flex-start;
  align-items: flex-start;
  display: flex;
  flex-direction: row;
  gap: var(--space-3);
  max-width: 90%;
}

.message-avatar {
  width: 40px;
  height: 40px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: var(--space-1);
}

.avatar-icon {
  font-size: var(--font-size-lg);
}

.message-content {
  background: var(--color-surface-secondary);
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-primary);
  flex: 1;
}

.user-message .message-content {
  background: var(--gradient-primary);
  color: var(--color-text-primary);
}

.ai-message .message-content {
  background: var(--color-surface-primary);
  border: 1px solid var(--color-border-secondary);
}

.message-content p {
  margin: 0 0 var(--space-3) 0;
  color: var(--color-text-primary);
  line-height: var(--line-height-relaxed);
}

.message-content p:last-child {
  margin-bottom: 0;
}

.message-timestamp {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  margin-top: var(--space-2);
  align-self: flex-end;
}

.ai-message .message-timestamp {
  align-self: flex-start;
  margin-left: 43px;
}

/* Streaming Response */
.streaming-response {
  animation: fadeInUp 0.5s ease-out;
}

.response-text {
  margin-bottom: var(--space-4) !important;
}

.analysis-steps {
  margin: var(--space-4) 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.step {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  transition: all var(--duration-normal) var(--ease-in-out);
}

.step.completed {
  background: rgba(40, 202, 66, 0.1);
  border-left: 3px solid #28ca42;
}

.step.in-progress {
  background: rgba(99, 102, 241, 0.1);
  border-left: 3px solid var(--color-primary-start);
}

.step.pending {
  background: var(--color-surface-primary);
  border-left: 3px solid var(--color-border-primary);
  opacity: 0.6;
}

.step-icon {
  font-size: var(--font-size-sm);
  width: 16px;
  text-align: center;
}

.step-icon.streaming {
  animation: pulse 1.5s infinite;
  color: var(--color-primary-start);
}

.step-text {
  flex: 1;
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
}

.progress-bar {
  width: 100px;
  height: 4px;
  background: var(--color-surface-secondary);
  border-radius: 2px;
  overflow: hidden;
  margin-left: var(--space-3);
}

.progress-fill {
  height: 100%;
  background: var(--gradient-primary);
  width: 65%;
  animation: progressPulse 2s ease-in-out infinite;
}

/* Quality Metrics Preview */
.quality-metrics-preview {
  margin-top: var(--space-5);
  padding: var(--space-4);
  background: var(--color-surface-secondary);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-secondary);
}

.metrics-header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.metrics-icon {
  font-size: var(--font-size-base);
}

.metrics-title {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
}

.metric-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.metric-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  font-weight: var(--font-weight-medium);
}

.metric-value {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}

.metric-bar {
  width: 100%;
  height: 4px;
  background: var(--color-surface-primary);
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-top: var(--space-1);
}

.metric-fill {
  height: 100%;
  border-radius: var(--radius-sm);
  transition: width 0.8s ease-out;
}

.metric-fill.accuracy {
  background: linear-gradient(90deg, #10b981, #34d399);
}

.metric-fill.trustworthiness {
  background: linear-gradient(90deg, #3b82f6, #60a5fa);
}

.metric-fill.precision {
  background: linear-gradient(90deg, #8b5cf6, #a78bfa);
}

.metric-fill.confidence {
  background: linear-gradient(90deg, #f59e0b, #fbbf24);
}

.composite-score {
  grid-column: 1 / -1;
  text-align: center;
  padding: var(--space-3);
  background: var(--color-surface-primary);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-primary);
  margin-top: var(--space-2);
}

.composite-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-1);
}

.composite-value {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Quality Section Styles */
.quality-section {
  min-height: 100vh;
  background: var(--color-bg-secondary);
  padding: var(--spacing-section-padding-desktop) 0;
  position: relative;
}

.quality-container {
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: 0 var(--space-5);
  text-align: center;
}

.quality-section h2 {
  font-size: var(--font-size-section-h2);
  font-weight: var(--font-weight-extrabold);
  margin-bottom: var(--space-6);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: var(--line-height-snug);
  padding-bottom: 0.15em;
  display: inline-block;
}

.quality-intro {
  font-size: var(--font-size-xl);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-16);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  line-height: var(--line-height-relaxed);
}

.quality-showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: start;
  max-width: 1200px;
  margin: 0 auto;
}

.quality-explanation {
  text-align: left;
}

.quality-explanation h3 {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-6);
}

.quality-explanation p {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-4);
}

.quality-features {
  list-style: none;
  margin-top: var(--space-6);
}

.quality-feature {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  padding: var(--space-3);
  background: var(--color-surface-primary);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-primary);
}

.quality-feature-icon {
  font-size: var(--font-size-lg);
  width: 24px;
  text-align: center;
}

.quality-feature-text {
  font-size: var(--font-size-base);
  color: var(--color-text-primary);
  font-weight: var(--font-weight-medium);
}

.quality-demo {
  background: var(--color-surface-primary);
  border: 1px solid var(--color-border-secondary);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  position: relative;
}

.demo-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-border-primary);
}

.demo-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}

.sample-output {
  background: var(--color-bg-primary);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  margin-bottom: var(--space-5);
  border: 1px solid var(--color-border-primary);
}

.output-text {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-4);
  font-family: 'Courier New', monospace;
}

.quality-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--color-surface-secondary);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  margin: var(--space-1);
}

.badge-accuracy { border-left: 3px solid #10b981; }
.badge-trustworthiness { border-left: 3px solid #3b82f6; }
.badge-precision { border-left: 3px solid #8b5cf6; }
.badge-confidence { border-left: 3px solid #f59e0b; }

.version-comparison {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
  margin-top: var(--space-12);
}

.version-card {
  background: var(--color-surface-primary);
  border: 1px solid var(--color-border-secondary);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  text-align: center;
}

.version-header {
  margin-bottom: var(--space-4);
}

.version-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.version-subtitle {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
}

.version-features {
  list-style: none;
  text-align: left;
}

.version-feature {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.feature-check {
  color: #10b981;
  font-weight: var(--font-weight-bold);
}

/* Research Summary Styles */
.research-summary {
  background: var(--color-surface-primary);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  margin: var(--space-4) 0;
  border-left: 3px solid var(--color-primary-start);
}

.research-summary h4 {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
  margin-top: var(--space-3);
}

.research-summary h4:first-child {
  margin-top: 0;
}

.research-summary ul {
  list-style: none;
  margin-bottom: var(--space-3);
}

.research-summary li {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-2);
  padding-left: var(--space-4);
  position: relative;
}

.research-summary li::before {
  content: "•";
  color: var(--color-primary-start);
  position: absolute;
  left: 0;
  font-weight: var(--font-weight-bold);
}

.research-summary strong {
  color: var(--color-text-primary);
  font-weight: var(--font-weight-semibold);
}

/* Source Quality Indicators */
.source-quality {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-4);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-border-primary);
}

.source-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--color-bg-primary);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-primary);
}

.source-icon {
  font-size: var(--font-size-sm);
}

.source-text {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
}

/* Enhanced Demo Quality Metrics */
.demo-quality-enhanced {
  background: var(--color-surface-secondary);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  margin-top: var(--space-4);
  border: 1px solid var(--color-border-secondary);
}

.demo-quality-header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.demo-quality-title {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}

.demo-metrics-simple {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
}

.demo-metric-item {
  text-align: center;
}

.demo-metric-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-1);
}

.demo-metric-value {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
}

.demo-metric-bar {
  width: 100%;
  height: 3px;
  background: var(--color-surface-primary);
  border-radius: var(--radius-sm);
  margin-top: var(--space-1);
  overflow: hidden;
}

.demo-metric-fill {
  height: 100%;
  border-radius: var(--radius-sm);
  transition: width 0.6s ease-out;
}

.demo-metric-fill.demo-accuracy {
  background: linear-gradient(90deg, #10b981, #34d399);
}

.demo-metric-fill.demo-confidence {
  background: linear-gradient(90deg, #f59e0b, #fbbf24);
}

.demo-quality-indicators {
  display: flex;
  gap: var(--space-2);
  margin-top: var(--space-3);
  justify-content: center;
}

.demo-quality-indicators .quality-badge {
  font-size: var(--font-size-xs);
  padding: var(--space-1) var(--space-2);
}

.metrics-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.metric {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.metric-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  min-width: 60px;
  text-align: left;
}

.metric-bar {
  flex: 1;
  height: 6px;
  background: var(--color-surface-primary);
  border-radius: 3px;
  overflow: hidden;
}

.metric-fill {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: 3px;
  transition: width 1s ease-out;
}

.metric-value {
  font-size: var(--font-size-xs);
  color: var(--color-text-primary);
  font-weight: var(--font-weight-semibold);
  min-width: 30px;
  text-align: right;
}

/* Chat Input Area */
.chat-input-area {
  padding: var(--space-4) var(--space-6);
  background: var(--color-surface-primary);
  border-top: 1px solid var(--color-border-primary);
}

.input-container {
  display: flex;
  gap: var(--space-3);
  margin-bottom: var(--space-2);
}

.chat-input {
  flex: 1;
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-lg);
  color: var(--color-text-primary);
  font-size: var(--font-size-base);
  transition: all var(--duration-normal) var(--ease-in-out);
}

.chat-input:focus {
  outline: none;
  border-color: var(--color-primary-start);
  box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
}

.chat-input:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.send-button {
  width: 44px;
  height: 44px;
  background: var(--gradient-primary);
  border: none;
  border-radius: 50%;
  color: var(--color-text-primary);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-in-out);
  display: flex;
  align-items: center;
  justify-content: center;
}

.send-button:hover:not(:disabled) {
  transform: scale(1.05);
  box-shadow: 0 5px 15px rgba(99, 102, 241, 0.4);
}

.send-button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.input-hint {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  justify-content: center;
}

.hint-icon {
  font-size: var(--font-size-sm);
}

.hint-text {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  font-style: italic;
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes progressPulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

/* Responsive Design for Demo Section */
@media (max-width: 768px) {
  .demo-interface-mockup {
    padding: var(--space-4);
  }
  
  .demo-chat-interface {
    height: 500px;
  }
  
  .chat-messages {
    padding: var(--space-4);
  }
  
  .message {
    max-width: 95%;
  }
  
  .ai-message {
    max-width: 100%;
  }
  
  .browser-header {
    padding: var(--space-2) var(--space-3);
  }
  
  .browser-url {
    display: none;
  }
  
  .metrics-grid {
    gap: var(--space-3);
  }
  
  .metric {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-1);
  }
  
  .metric-label {
    min-width: auto;
  }
  
  .metric-bar {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .demo-section h2 {
    font-size: var(--font-size-4xl);
  }
  
  .demo-intro {
    font-size: var(--font-size-lg);
  }
  
  .demo-chat-interface {
    height: 400px;
  }
  
  .chat-header {
    padding: var(--space-3) var(--space-4);
  }
  
  .chat-title h3 {
    font-size: var(--font-size-base);
  }
  
  .message-content {
    padding: var(--space-3) var(--space-4);
  }
  
  .analysis-steps {
    gap: var(--space-2);
  }
  
  .step {
    padding: var(--space-2);
  }
  
  .quality-metrics-preview {
    padding: var(--space-3);
  }
  
  .quality-showcase {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
  
  .quality-explanation {
    text-align: center;
  }
  
  .metrics-grid {
    grid-template-columns: 1fr;
    gap: var(--space-2);
  }
  
  .version-comparison {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
  
  .quality-badges {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-2);
    margin-top: var(--space-3);
  }
  
  .quality-demo {
    padding: var(--space-5);
  }
  
  .source-quality {
    flex-direction: column;
    gap: var(--space-2);
  }
  
  .demo-metrics-simple {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
  
  .demo-quality-indicators {
    flex-direction: column;
    align-items: center;
  }
  
  .research-summary {
    padding: var(--space-3);
  }
}
/* Demo Technology Explanation */
.demo-technology-section {
  margin-bottom: var(--space-16);
  text-align: left;
}

.demo-technology-section h3 {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  text-align: center;
  margin-bottom: var(--space-8);
  background: var(--gradient-secondary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.technology-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-6);
  margin-bottom: var(--space-12);
}

.tech-card {
  background: var(--color-surface-primary);
  border: 1px solid var(--color-border-secondary);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: all var(--duration-normal) var(--ease-in-out);
  backdrop-filter: var(--backdrop-blur-sm);
}

.tech-card:hover {
  transform: translateY(-5px);
  border-color: var(--color-primary-start);
  box-shadow: 0 10px 30px rgba(99, 102, 241, 0.2);
}

.tech-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-4);
  display: block;
}

.tech-card h4 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-3);
}

.tech-card p {
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-4);
}

.tech-details {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.tech-badge {
  background: rgba(99, 102, 241, 0.1);
  color: var(--color-primary-start);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-2xl);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  border: 1px solid rgba(99, 102, 241, 0.2);
}

/* Backend Configuration Preview */
.backend-config-preview {
  background: var(--color-surface-primary);
  border: 1px solid var(--color-border-secondary);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  backdrop-filter: var(--backdrop-blur-sm);
}

.backend-config-preview h4 {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  text-align: center;
  margin-bottom: var(--space-6);
}

.config-tabs {
  display: flex;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
  background: var(--color-surface-secondary);
  padding: var(--space-1);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-primary);
}

.config-tab {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-in-out);
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
}

.config-tab.active {
  background: var(--gradient-primary);
  color: var(--color-text-primary);
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}

.config-tab:not(.active):hover {
  background: var(--color-surface-primary);
  color: var(--color-text-primary);
}

.tab-icon {
  font-size: var(--font-size-base);
}

.tab-label {
  font-size: var(--font-size-sm);
}

.config-content {
  position: relative;
  min-height: 200px;
}

.config-panel {
  display: none;
  animation: fadeInUp 0.3s ease-out;
}

.config-panel.active {
  display: block;
}

.config-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
}

.input-with-icon {
  position: relative;
}

.config-input,
.config-select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  font-size: var(--font-size-base);
  transition: all var(--duration-normal) var(--ease-in-out);
}

.config-input:focus,
.config-select:focus {
  outline: none;
  border-color: var(--color-primary-start);
  box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
}

.config-input:disabled,
.config-select:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.input-with-icon .config-input {
  padding-right: var(--space-10);
}

.input-icon {
  position: absolute;
  right: var(--space-3);
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-tertiary);
  font-size: var(--font-size-base);
}

.form-hint {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  font-style: italic;
}

.model-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.model-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-2) var(--space-3);
  background: var(--color-surface-secondary);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border-primary);
}

.model-name {
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
  font-family: monospace;
}

.model-status {
  font-size: var(--font-size-xs);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  font-weight: var(--font-weight-medium);
}

.model-status.online {
  background: rgba(40, 202, 66, 0.1);
  color: #28ca42;
  border: 1px solid rgba(40, 202, 66, 0.2);
}

/* Responsive Design for Technology Section */
@media (max-width: 768px) {
  .technology-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
  
  .tech-card {
    padding: var(--space-4);
  }
  
  .backend-config-preview {
    padding: var(--space-5);
  }
  
  .config-tabs {
    flex-direction: column;
    gap: var(--space-1);
  }
  
  .config-tab {
    padding: var(--space-2) var(--space-3);
  }
  
  .tab-label {
    font-size: var(--font-size-xs);
  }
}

@media (max-width: 480px) {
  .demo-technology-section h3 {
    font-size: var(--font-size-2xl);
  }
  
  .tech-card h4 {
    font-size: var(--font-size-lg);
  }
  
  .tech-details {
    gap: var(--space-1);
  }
  
  .tech-badge {
    font-size: 10px;
    padding: 2px var(--space-2);
  }
  
  .backend-config-preview h4 {
    font-size: var(--font-size-xl);
  }
}/* Demo
 Limitations and CTA */
.demo-limitations-cta {
  margin-top: var(--space-16);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: start;
}

/* Limitations Warning */
.limitations-warning {
  background: linear-gradient(135deg, rgba(255, 107, 107, 0.1) 0%, rgba(254, 202, 87, 0.1) 100%);
  border: 1px solid rgba(255, 107, 107, 0.3);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  backdrop-filter: var(--backdrop-blur-sm);
}

.warning-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}

.warning-icon {
  font-size: var(--font-size-2xl);
}

.warning-header h4 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: #ff6b6b;
  margin: 0;
}

.warning-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.limitation-item {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
}

.limitation-icon {
  font-size: var(--font-size-lg);
  flex-shrink: 0;
  margin-top: 2px;
}

.limitation-text {
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  font-size: var(--font-size-sm);
}

.limitation-text strong {
  color: var(--color-text-primary);
  font-weight: var(--font-weight-semibold);
}

/* Demo CTA Section */
.demo-cta-section {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

.cta-content {
  text-align: center;
}

.demo-cta-section h4 {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-4);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.cta-description {
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-6);
  font-size: var(--font-size-base);
}

.cta-buttons {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
}

/* Demo CTA Buttons */
.btn-demo-primary,
.btn-demo-secondary {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-6);
  border-radius: var(--radius-2xl);
  text-decoration: none;
  transition: all var(--duration-normal) var(--ease-in-out);
  position: relative;
  overflow: hidden;
  min-width: 200px;
  justify-content: center;
}

.btn-demo-primary {
  background: var(--gradient-primary);
  color: var(--color-text-primary);
  border: none;
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn-demo-primary::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--gradient-button-hover);
  transition: left var(--duration-slow) var(--ease-in-out);
}

.btn-demo-primary:hover::before {
  left: 100%;
}

.btn-demo-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4);
}

.btn-demo-secondary {
  background: var(--color-surface-secondary);
  color: var(--color-text-primary);
  border: 2px solid var(--color-border-secondary);
  backdrop-filter: var(--backdrop-blur-sm);
}

.btn-demo-secondary:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.4);
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 8px 25px rgba(255, 255, 255, 0.1);
}

.btn-icon {
  font-size: var(--font-size-xl);
  position: relative;
  z-index: 2;
}

.btn-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  position: relative;
  z-index: 2;
}

.btn-demo-primary .btn-text,
.btn-demo-secondary .btn-text {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  margin-bottom: 2px;
}

.btn-demo-primary .btn-subtitle,
.btn-demo-secondary .btn-subtitle {
  font-size: var(--font-size-xs);
  opacity: 0.8;
  font-weight: var(--font-weight-normal);
}

/* Quick Comparison */
.demo-comparison-quick {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.comparison-item {
  background: var(--color-surface-primary);
  border: 1px solid var(--color-border-secondary);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  backdrop-filter: var(--backdrop-blur-sm);
  transition: all var(--duration-normal) var(--ease-in-out);
}

.comparison-item:hover {
  transform: translateY(-2px);
  border-color: var(--color-primary-start);
  box-shadow: 0 5px 20px rgba(99, 102, 241, 0.15);
}

.desktop-item {
  border-color: var(--color-primary-start);
  background: linear-gradient(135deg, var(--color-surface-primary) 0%, rgba(99, 102, 241, 0.05) 100%);
}

.comparison-header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.comparison-icon {
  font-size: var(--font-size-lg);
}

.comparison-title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}

.comparison-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.comparison-features li {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.comparison-features li:has-text("✓") {
  color: var(--color-text-primary);
}

.comparison-features li:has-text("⚠️") {
  color: #feca57;
}

/* Focus states for accessibility */
.btn-demo-primary:focus,
.btn-demo-secondary:focus {
  outline: 2px solid var(--color-primary-start);
  outline-offset: 4px;
}

/* Responsive Design for Demo Limitations and CTA */
@media (max-width: 1024px) {
  .demo-limitations-cta {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
  
  .demo-comparison-quick {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }
}

@media (max-width: 768px) {
  .limitations-warning {
    padding: var(--space-4);
  }
  
  .warning-header h4 {
    font-size: var(--font-size-lg);
  }
  
  .limitation-item {
    gap: var(--space-2);
  }
  
  .limitation-text {
    font-size: var(--font-size-xs);
  }
  
  .demo-cta-section h4 {
    font-size: var(--font-size-xl);
  }
  
  .cta-description {
    font-size: var(--font-size-sm);
  }
  
  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .btn-demo-primary,
  .btn-demo-secondary {
    width: 100%;
    max-width: 280px;
  }
  
  .comparison-item {
    padding: var(--space-4);
  }
}

@media (max-width: 480px) {
  .demo-limitations-cta {
    gap: var(--space-6);
  }
  
  .warning-header {
    flex-direction: column;
    text-align: center;
    gap: var(--space-2);
  }
  
  .limitation-item {
    flex-direction: column;
    text-align: center;
    gap: var(--space-2);
  }
  
  .demo-cta-section h4 {
    font-size: var(--font-size-lg);
  }
  
  .btn-demo-primary,
  .btn-demo-secondary {
    min-width: auto;
    width: 100%;
    padding: var(--space-3) var(--space-4);
  }
  
  .btn-content {
    align-items: center;
  }
}
/*
 ==========================================================================
   Architecture Section Components
   ========================================================================== */

.architecture-section {
  padding: var(--space-20) 0;
  background: linear-gradient(135deg, 
    rgba(99, 102, 241, 0.05) 0%, 
    rgba(139, 92, 246, 0.05) 50%, 
    rgba(236, 72, 153, 0.05) 100%);
  position: relative;
  overflow: hidden;
}

.architecture-container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.architecture-intro {
  text-align: center;
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-12);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
}

.architecture-diagram {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
}

.architecture-diagram::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, 
    rgba(99, 102, 241, 0.1) 0%, 
    rgba(139, 92, 246, 0.1) 50%, 
    rgba(236, 72, 153, 0.1) 100%);
  opacity: 0.3;
  z-index: -1;
}

.diagram-container {
  position: relative;
  z-index: 1;
}

.diagram-title {
  text-align: center;
  margin-bottom: var(--space-8);
}

.diagram-title h3 {
  font-size: var(--font-size-2xl);
  color: var(--color-text-primary);
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
}

.diagram-icon {
  font-size: var(--font-size-3xl);
}

.architecture-layer {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  margin-bottom: var(--space-4);
  position: relative;
}

.user-layer {
  background: linear-gradient(135deg, 
    rgba(99, 102, 241, 0.1) 0%, 
    rgba(99, 102, 241, 0.05) 100%);
  border-color: rgba(99, 102, 241, 0.3);
}

.processing-layer {
  background: linear-gradient(135deg, 
    rgba(139, 92, 246, 0.1) 0%, 
    rgba(139, 92, 246, 0.05) 100%);
  border-color: rgba(139, 92, 246, 0.3);
}

.layer-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.layer-header h4 {
  font-size: var(--font-size-xl);
  color: var(--color-text-primary);
  margin: 0;
}

.layer-icon {
  font-size: var(--font-size-2xl);
}

.layer-content {
  display: flex;
  justify-content: center;
}

.component {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  text-align: center;
  min-width: 280px;
  transition: all var(--duration-normal) var(--ease-in-out);
}

.component:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  border-color: rgba(255, 255, 255, 0.25);
}

.chat-agent {
  border-color: rgba(99, 102, 241, 0.4);
  background: linear-gradient(135deg, 
    rgba(99, 102, 241, 0.15) 0%, 
    rgba(99, 102, 241, 0.08) 100%);
}

.ai-agent {
  border-color: rgba(139, 92, 246, 0.4);
  background: linear-gradient(135deg, 
    rgba(139, 92, 246, 0.15) 0%, 
    rgba(139, 92, 246, 0.08) 100%);
}

.component-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.component-header h5 {
  font-size: var(--font-size-lg);
  color: var(--color-text-primary);
  margin: 0;
  font-weight: 600;
}

.component-icon {
  font-size: var(--font-size-xl);
}

.component-description {
  color: var(--color-text-secondary);
  font-size: var(--font-size-base);
  margin-bottom: var(--space-4);
  font-style: italic;
}

.component-features {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  justify-content: center;
}

.feature-tag {
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-text-primary);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: 500;
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: all var(--duration-fast) var(--ease-in-out);
}

.feature-tag:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: scale(1.05);
}

.architecture-bridge {
  display: flex;
  justify-content: center;
  align-items: center;
  margin: var(--space-4) 0;
  position: relative;
}

.bridge-arrow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  backdrop-filter: blur(5px);
}

.arrow-icon {
  font-size: var(--font-size-2xl);
  color: var(--color-accent-primary);
  animation: pulse 2s infinite;
}

.bridge-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  font-weight: 500;
  text-align: center;
}

.architecture-components {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-4);
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.component-group {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  text-align: center;
  transition: all var(--duration-normal) var(--ease-in-out);
}

.component-group:hover {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.2);
}

.memory-group {
  border-color: rgba(236, 72, 153, 0.3);
}

.reasoning-group {
  border-color: rgba(99, 102, 241, 0.3);
}

.api-group {
  border-color: rgba(139, 92, 246, 0.3);
}

.component-group .component-header {
  margin-bottom: var(--space-3);
}

.component-group .component-header h5 {
  font-size: var(--font-size-base);
  font-weight: 600;
}

.component-subparts {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.subpart {
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-text-secondary);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all var(--duration-fast) var(--ease-in-out);
}

.subpart:hover {
  background: rgba(255, 255, 255, 0.12);
  color: var(--color-text-primary);
  transform: scale(1.02);
}

/* Responsive Design */
@media (max-width: 768px) {
  .architecture-diagram {
    padding: var(--space-4);
  }
  
  .component {
    min-width: auto;
    width: 100%;
  }
  
  .architecture-components {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }
  
  .diagram-title h3 {
    font-size: var(--font-size-xl);
    flex-direction: column;
    gap: var(--space-2);
  }
  
  .layer-header {
    flex-direction: column;
    text-align: center;
    gap: var(--space-2);
  }
  
  .bridge-arrow {
    padding: var(--space-2);
  }
  
  .bridge-label {
    font-size: var(--font-size-xs);
  }
}

@media (max-width: 480px) {
  .architecture-section {
    padding: var(--space-12) 0;
  }
  
  .architecture-container {
    padding: 0 var(--space-4);
  }
  
  .architecture-intro {
    font-size: var(--font-size-base);
    margin-bottom: var(--space-8);
  }
  
  .component-features {
    flex-direction: column;
    align-items: center;
  }
  
  .feature-tag {
    width: 100%;
    text-align: center;
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.7;
    transform: scale(1.1);
  }
}/* =
=========================================================================
   Component Roles Section Styles
   ========================================================================== */

.component-roles {
  margin-top: var(--space-12);
  padding-top: var(--space-8);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.roles-header {
  text-align: center;
  margin-bottom: var(--space-10);
}

.roles-header h3 {
  font-size: var(--font-size-2xl);
  color: var(--color-text-primary);
  margin: 0 0 var(--space-4) 0;
  font-weight: 600;
}

.roles-intro {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.6;
}

.roles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: var(--space-8);
  margin-bottom: var(--space-12);
}

.role-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: all var(--duration-normal) var(--ease-in-out);
  position: relative;
  overflow: hidden;
}

.role-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-in-out);
  z-index: -1;
}

.role-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
  border-color: rgba(255, 255, 255, 0.2);
}

.role-card:hover::before {
  opacity: 1;
}

.ai-role {
  border-color: rgba(139, 92, 246, 0.3);
}

.ai-role::before {
  background: linear-gradient(135deg, 
    rgba(139, 92, 246, 0.1) 0%, 
    rgba(139, 92, 246, 0.05) 100%);
}

.chat-role {
  border-color: rgba(99, 102, 241, 0.3);
}

.chat-role::before {
  background: linear-gradient(135deg, 
    rgba(99, 102, 241, 0.1) 0%, 
    rgba(99, 102, 241, 0.05) 100%);
}

.role-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
  flex-wrap: wrap;
}

.role-header h4 {
  font-size: var(--font-size-xl);
  color: var(--color-text-primary);
  margin: 0;
  font-weight: 600;
}

.role-icon {
  font-size: var(--font-size-2xl);
}

.role-badge {
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-text-secondary);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: 500;
  border: 1px solid rgba(255, 255, 255, 0.2);
  margin-left: auto;
}

.role-content {
  position: relative;
  z-index: 1;
}

.role-description {
  color: var(--color-text-secondary);
  font-size: var(--font-size-base);
  line-height: 1.6;
  margin-bottom: var(--space-6);
}

.role-capabilities h5 {
  font-size: var(--font-size-lg);
  color: var(--color-text-primary);
  margin: 0 0 var(--space-4) 0;
  font-weight: 600;
}

.capability-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.capability-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  padding: var(--space-3);
  background: rgba(255, 255, 255, 0.02);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: all var(--duration-fast) var(--ease-in-out);
}

.capability-item:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.1);
  transform: translateX(4px);
}

.capability-icon {
  font-size: var(--font-size-lg);
  margin-top: 2px;
  flex-shrink: 0;
}

.capability-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.capability-content strong {
  color: var(--color-text-primary);
  font-size: var(--font-size-base);
  font-weight: 600;
}

.capability-content span {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  line-height: 1.5;
}

.agent-collaboration {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  margin-top: var(--space-8);
}

.collaboration-header {
  text-align: center;
  margin-bottom: var(--space-6);
}

.collaboration-header h4 {
  font-size: var(--font-size-xl);
  color: var(--color-text-primary);
  margin: 0;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
}

.collaboration-icon {
  font-size: var(--font-size-2xl);
}

.collaboration-description {
  color: var(--color-text-secondary);
  font-size: var(--font-size-base);
  line-height: 1.6;
  text-align: center;
  margin-bottom: var(--space-8);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.collaboration-flow {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr; /* 3x1 bento: step → step → step */
  align-items: center;
  justify-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

.flow-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  max-width: 200px;
  flex: 1;
  min-width: 180px;
}

.step-number {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-secondary));
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-3);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.step-content h5 {
  font-size: var(--font-size-base);
  color: var(--color-text-primary);
  margin: 0 0 var(--space-2) 0;
  font-weight: 600;
}

.step-content p {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.5;
  margin: 0;
}

.flow-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  font-size: var(--font-size-xl);
  color: var(--color-accent-primary);
  font-weight: bold;
  margin: 0 var(--space-2);
}

.collaboration-benefits {
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.collaboration-benefits h5 {
  font-size: var(--font-size-lg);
  color: var(--color-text-primary);
  margin: 0 0 var(--space-6) 0;
  font-weight: 600;
  text-align: center;
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-4);
}

.benefit-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  transition: all var(--duration-fast) var(--ease-in-out);
}

.benefit-item:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.benefit-icon {
  font-size: var(--font-size-lg);
  margin-top: 2px;
  flex-shrink: 0;
}

.benefit-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.benefit-content strong {
  color: var(--color-text-primary);
  font-size: var(--font-size-base);
  font-weight: 600;
}

.benefit-content span {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  line-height: 1.5;
}

/* Responsive Design for Component Roles */
@media (max-width: 768px) {
  .roles-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
  
  .role-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
  }
  
  .role-badge {
    margin-left: 0;
    align-self: flex-start;
  }
  
  .collaboration-flow {
    grid-template-columns: 1fr; /* stack vertically on mobile */
    gap: var(--space-6);
    justify-items: center;
  }
  
  .flow-arrow {
    transform: rotate(90deg);
    margin: var(--space-2) 0;
  }
  
  .flow-step {
    max-width: none;
    width: 100%;
  }
  
  .benefits-grid {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }
}

@media (max-width: 480px) {
  .component-roles {
    margin-top: var(--space-8);
    padding-top: var(--space-6);
  }
  
  .roles-header h3 {
    font-size: var(--font-size-xl);
  }
  
  .roles-intro {
    font-size: var(--font-size-base);
  }
  
  .role-card {
    padding: var(--space-4);
  }
  
  .agent-collaboration {
    padding: var(--space-4);
  }
  
  .collaboration-header h4 {
    font-size: var(--font-size-lg);
    flex-direction: column;
    gap: var(--space-2);
  }
  
  .step-number {
    width: 32px;
    height: 32px;
    font-size: var(--font-size-base);
  }
}
/* ==========================================================================
   Final Call-to-Action Section Styles
   ========================================================================== */

.cta-section {
  padding: var(--space-20) 0;
  background: linear-gradient(135deg, 
    rgba(99, 102, 241, 0.1) 0%, 
    rgba(139, 92, 246, 0.1) 50%, 
    rgba(236, 72, 153, 0.1) 100%);
  position: relative;
  overflow: hidden;
  text-align: center;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 50% 50%, 
    rgba(99, 102, 241, 0.15) 0%, 
    transparent 70%);
  z-index: 0;
}

.cta-container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
  position: relative;
  z-index: 1;
}

.cta-hero {
  margin-bottom: var(--space-12);
}

.cta-hero h2 {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-extrabold);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin: 0 0 var(--space-4) 0;
  line-height: var(--line-height-snug);
  padding-bottom: 0.15em;
  display: inline-block;
}

.cta-tagline {
  font-size: var(--font-size-xl);
  color: var(--color-text-primary);
  margin: 0 0 var(--space-6) 0;
  font-weight: 500;
}

.cta-description {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  max-width: 700px;
  margin: 0 auto;
  line-height: 1.6;
}

.cta-value-props {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-6);
  margin-bottom: var(--space-12);
}

.value-prop-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: all var(--duration-normal) var(--ease-in-out);
  backdrop-filter: blur(10px);
}

.value-prop-card:hover {
  transform: translateY(-4px);
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.value-prop-icon {
  font-size: var(--font-size-3xl);
  display: block;
  margin-bottom: var(--space-4);
}

.value-prop-card h3 {
  font-size: var(--font-size-xl);
  color: var(--color-text-primary);
  margin: 0 0 var(--space-3) 0;
  font-weight: 600;
}

.value-prop-card p {
  color: var(--color-text-secondary);
  font-size: var(--font-size-base);
  line-height: 1.6;
  margin: 0;
}

.cta-actions {
  margin-bottom: var(--space-12);
}

.cta-primary-group {
  display: flex;
  justify-content: center;
  gap: var(--space-6);
  margin-bottom: var(--space-6);
  flex-wrap: wrap;
}

.btn-cta-primary,
.btn-cta-secondary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-lg);
  text-decoration: none;
  font-weight: 600;
  transition: all var(--duration-normal) var(--ease-in-out);
  position: relative;
  overflow: hidden;
  min-width: 280px;
  justify-content: center;
  border: 2px solid transparent;
}

.btn-cta-primary {
  background: var(--gradient-primary);
  color: var(--color-text-primary);
  box-shadow: 0 8px 32px rgba(99, 102, 241, 0.3);
}

.btn-cta-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, 
    transparent, 
    rgba(255, 255, 255, 0.2), 
    transparent);
  transition: left 0.6s ease;
}

.btn-cta-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 12px 48px rgba(99, 102, 241, 0.4);
}

.btn-cta-primary:hover::before {
  left: 100%;
}

.btn-cta-secondary {
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-text-primary);
  border-color: rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(10px);
}

.btn-cta-secondary:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.5);
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 8px 32px rgba(255, 255, 255, 0.1);
}

.btn-icon {
  font-size: var(--font-size-xl);
  flex-shrink: 0;
}

.btn-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
}

.btn-text {
  font-size: var(--font-size-lg);
  font-weight: 600;
  line-height: 1.2;
}

.btn-subtitle {
  font-size: var(--font-size-sm);
  opacity: 0.8;
  font-weight: 400;
  margin-top: 2px;
}

.cta-urgency {
  display: flex;
  justify-content: center;
  gap: var(--space-8);
  flex-wrap: wrap;
}

.urgency-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

.urgency-icon {
  font-size: var(--font-size-base);
}

.cta-pathways {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  margin-bottom: var(--space-12);
  backdrop-filter: blur(10px);
}

.pathway-header {
  margin-bottom: var(--space-8);
}

.pathway-header h3 {
  font-size: var(--font-size-2xl);
  color: var(--color-text-primary);
  margin: 0 0 var(--space-2) 0;
  font-weight: 600;
}

.pathway-header p {
  color: var(--color-text-secondary);
  font-size: var(--font-size-base);
  margin: 0;
}

.pathway-options {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-6);
}

.pathway-option {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: all var(--duration-normal) var(--ease-in-out);
  position: relative;
}

.pathway-option:hover {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.subscription-pathway {
  border-color: rgba(99, 102, 241, 0.3);
  background: linear-gradient(135deg, 
    rgba(99, 102, 241, 0.1) 0%, 
    rgba(99, 102, 241, 0.05) 100%);
}

.pathway-option .pathway-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  flex-wrap: wrap;
}

.pathway-option .pathway-header h4 {
  font-size: var(--font-size-lg);
  color: var(--color-text-primary);
  margin: 0;
  font-weight: 600;
}

.pathway-icon {
  font-size: var(--font-size-xl);
}

.pathway-badge {
  background: var(--gradient-primary);
  color: white;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 600;
  margin-left: auto;
}

.pathway-description {
  color: var(--color-text-secondary);
  font-size: var(--font-size-base);
  margin-bottom: var(--space-4);
  line-height: 1.5;
}

.pathway-steps {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-5) 0;
}

.pathway-steps li {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-2);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.pathway-cta {
  display: inline-block;
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-text-primary);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  text-decoration: none;
  font-weight: 500;
  transition: all var(--duration-fast) var(--ease-in-out);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.pathway-cta:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-1px);
  border-color: rgba(255, 255, 255, 0.3);
}

.cta-final-value {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  backdrop-filter: blur(10px);
}

.final-value-content h3 {
  font-size: var(--font-size-xl);
  color: var(--color-text-primary);
  margin: 0 0 var(--space-6) 0;
  font-weight: 600;
}

.final-value-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-6);
}

.final-value-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
}

.final-value-number {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-extrabold);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.final-value-label {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  text-align: center;
  font-weight: 500;
}

/* Responsive Design for Final CTA */
@media (max-width: 768px) {
  .cta-section {
    padding: var(--space-16) 0;
  }
  
  .cta-hero h2 {
    font-size: var(--font-size-3xl);
  }
  
  .cta-tagline {
    font-size: var(--font-size-lg);
  }
  
  .cta-description {
    font-size: var(--font-size-base);
  }
  
  .cta-value-props {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
  
  .cta-primary-group {
    flex-direction: column;
    align-items: center;
    gap: var(--space-4);
  }
  
  .btn-cta-primary,
  .btn-cta-secondary {
    min-width: 260px;
    width: 100%;
    max-width: 320px;
  }
  
  .cta-urgency {
    flex-direction: column;
    gap: var(--space-4);
  }
  
  .pathway-options {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
  
  .pathway-option .pathway-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
  }
  
  .pathway-badge {
    margin-left: 0;
    align-self: flex-start;
  }
  
  .final-value-grid {
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--space-4);
  }
}

@media (max-width: 480px) {
  .cta-section {
    padding: var(--space-12) 0;
  }
  
  .cta-container {
    padding: 0 var(--space-4);
  }
  
  .cta-hero {
    margin-bottom: var(--space-8);
  }
  
  .cta-hero h2 {
    font-size: var(--font-size-2xl);
  }
  
  .cta-tagline {
    font-size: var(--font-size-base);
  }
  
  .cta-description {
    font-size: var(--font-size-sm);
  }
  
  .value-prop-card {
    padding: var(--space-4);
  }
  
  .value-prop-icon {
    font-size: var(--font-size-2xl);
  }
  
  .btn-cta-primary,
  .btn-cta-secondary {
    min-width: auto;
    width: 100%;
    padding: var(--space-3) var(--space-6);
  }
  
  .btn-content {
    align-items: center;
    text-align: center;
  }
  
  .cta-pathways,
  .cta-final-value {
    padding: var(--space-4);
  }
  
  .pathway-header h3 {
    font-size: var(--font-size-xl);
  }
  
  .final-value-number {
    font-size: var(--font-size-2xl);
  }
  
  .final-value-grid {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }
}

/* Focus states for accessibility */
.btn-cta-primary:focus,
.btn-cta-secondary:focus,
.pathway-cta:focus {
  outline: 2px solid var(--color-primary-start);
  outline-offset: 4px;
}

/* Animation for CTA buttons */
@keyframes ctaPulse {
  0%, 100% {
    box-shadow: 0 8px 32px rgba(99, 102, 241, 0.3);
  }
  50% {
    box-shadow: 0 12px 48px rgba(99, 102, 241, 0.5);
  }
}

.btn-cta-primary {
  animation: ctaPulse 3s ease-in-out infinite;
}

.btn-cta-primary:hover {
  animation: none;
}/* 
Enhanced Pathway Optimization Styles */
.pathway-difficulty {
  margin-left: auto;
}

.difficulty-badge {
  background: rgba(34, 197, 94, 0.2);
  color: rgb(34, 197, 94);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: 600;
  border: 1px solid rgba(34, 197, 94, 0.3);
}

.difficulty-badge.easy {
  background: rgba(34, 197, 94, 0.2);
  color: rgb(34, 197, 94);
  border-color: rgba(34, 197, 94, 0.3);
}

.pathway-badges {
  display: flex;
  gap: var(--space-2);
  margin-left: auto;
  flex-wrap: wrap;
}

.pathway-badge.popular {
  background: rgba(236, 72, 153, 0.2);
  color: rgb(236, 72, 153);
  border: 1px solid rgba(236, 72, 153, 0.3);
}

.pathway-benefits {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
  padding: var(--space-3);
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.benefit-highlight {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

.benefit-icon {
  font-size: var(--font-size-base);
  flex-shrink: 0;
}

.pathway-steps li {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
  padding: var(--space-2);
  background: rgba(255, 255, 255, 0.02);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.step-number {
  width: 24px;
  height: 24px;
  background: var(--gradient-primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xs);
  font-weight: 600;
  flex-shrink: 0;
}

.pathway-cta-demo {
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.8), rgba(34, 197, 94, 0.6));
  color: white;
}

.pathway-cta-demo:hover {
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.9), rgba(34, 197, 94, 0.7));
}

.pathway-cta-subscription {
  background: var(--gradient-primary);
  color: white;
}

.pathway-cta-subscription:hover {
  background: linear-gradient(135deg, 
    rgba(99, 102, 241, 0.9), 
    rgba(139, 92, 246, 0.9));
}

.pathway-note {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-4);
  padding: var(--space-3);
  background: rgba(255, 255, 255, 0.02);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  font-style: italic;
}

.note-icon {
  font-size: var(--font-size-base);
  flex-shrink: 0;
}

.pathway-comparison {
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.comparison-header {
  text-align: center;
  margin-bottom: var(--space-6);
}

.comparison-header h4 {
  font-size: var(--font-size-lg);
  color: var(--color-text-primary);
  margin: 0;
  font-weight: 600;
}

.comparison-table {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 1px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  overflow: hidden;
  max-width: 600px;
  margin: 0 auto;
}

.comparison-row {
  display: contents;
}

.comparison-cell {
  padding: var(--space-3) var(--space-4);
  background: rgba(0, 0, 0, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-size: var(--font-size-sm);
  min-height: 48px;
}

.header-row .comparison-cell {
  background: rgba(255, 255, 255, 0.1);
  font-weight: 600;
  color: var(--color-text-primary);
}

.feature-cell {
  justify-content: flex-start;
  text-align: left;
  color: var(--color-text-secondary);
  font-weight: 500;
}

.demo-cell {
  color: var(--color-text-secondary);
}

.subscription-cell {
  color: var(--color-text-secondary);
}

.check-icon,
.cross-icon,
.price-icon {
  margin-right: var(--space-1);
}

/* Responsive Design for Enhanced Pathways */
@media (max-width: 768px) {
  .pathway-option .pathway-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
  }
  
  .pathway-difficulty,
  .pathway-badges {
    margin-left: 0;
    align-self: flex-start;
  }
  
  .pathway-badges {
    flex-direction: column;
    gap: var(--space-1);
  }
  
  .comparison-table {
    grid-template-columns: 1.5fr 1fr 1fr;
    font-size: var(--font-size-xs);
  }
  
  .comparison-cell {
    padding: var(--space-2) var(--space-3);
    min-height: 40px;
  }
}

@media (max-width: 480px) {
  .pathway-benefits {
    padding: var(--space-2);
  }
  
  .benefit-highlight {
    font-size: var(--font-size-xs);
  }
  
  .pathway-steps li {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
    text-align: left;
  }
  
  .step-number {
    align-self: flex-start;
  }
  
  .pathway-note {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
    text-align: left;
  }
  
  .comparison-table {
    grid-template-columns: 1fr;
    gap: 0;
  }
  
  .comparison-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 1px;
    margin-bottom: 1px;
  }
  
  .header-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 1px;
    margin-bottom: var(--space-2);
  }
  
  .feature-cell {
    grid-column: 1 / -1;
    justify-content: center;
    text-align: center;
    background: rgba(255, 255, 255, 0.05);
    font-weight: 600;
    color: var(--color-text-primary);
  }
  
  .demo-cell,
  .subscription-cell {
    justify-content: center;
  }
}
/*
 ==========================================================================
   Footer Component Styles
   ========================================================================== */

.footer {
  background: linear-gradient(135deg, var(--color-bg-secondary) 0%, var(--color-bg-tertiary) 100%);
  border-top: 1px solid var(--color-border-primary);
  padding: var(--spacing-section-padding-desktop) 0 var(--space-8);
  margin-top: var(--spacing-section-padding-desktop);
  position: relative;
  overflow: hidden;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--gradient-primary);
  opacity: 0.6;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-5);
}

.footer-main {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1.5fr;
  gap: var(--space-12);
  margin-bottom: var(--space-16);
  justify-content: center; /* center the grid as a whole without changing item layout */
}

.footer-section {
  display: flex;
  flex-direction: column;
  text-align: center;
}

/* Footer Brand Section */
.footer-brand {
  max-width: 350px;
}

.footer-logo {
  margin-bottom: var(--space-6);
}

.footer-logo-text {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  background: var(--gradient-hero-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: inline-block;
  letter-spacing: var(--letter-spacing-tight);
}

.footer-description {
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-8);
  font-size: var(--font-size-sm);
}

.footer-social {
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-6);
}

.footer-social-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text-tertiary);
  text-decoration: none;
  padding: var(--space-2) 0;
  transition: all var(--duration-normal) var(--ease-in-out);
  font-size: var(--font-size-sm);
  border-radius: var(--radius-sm);
}

.footer-social-link:hover {
  color: var(--color-text-primary);
  transform: translateX(var(--space-2));
}

.footer-social-link:hover .footer-social-icon {
  color: var(--color-primary-start);
  transform: scale(1.1);
}

.footer-social-icon {
  width: 20px;
  height: 20px;
  transition: all var(--duration-normal) var(--ease-in-out);
  flex-shrink: 0;
}

.footer-social-text {
  font-weight: var(--font-weight-medium);
}

/* Footer Section Titles */
.footer-section-title {
  color: var(--color-text-primary);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-6);
  letter-spacing: var(--letter-spacing-wide);
}

/* Footer Links */
.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-link {
  color: var(--color-text-tertiary);
  text-decoration: none;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-normal);
  padding: var(--space-2) 0;
  transition: all var(--duration-normal) var(--ease-in-out);
  position: relative;
  border-radius: var(--radius-sm);
}

.footer-link:hover {
  color: var(--color-text-primary);
  transform: translateX(var(--space-1));
}

.footer-link::before {
  content: '';
  position: absolute;
  left: calc(-var(--space-4) - 5px);
  top: 50%;
  transform: translateY(-50%);
  width: 2px;
  height: 0;
  background: var(--gradient-primary);
  transition: height var(--duration-normal) var(--ease-in-out);
  border-radius: 1px;
}

.footer-link:hover::before {
  height: 100%;
  transform: translateY(-50%) translateX(calc(-1 * var(--space-2)));
}

/* Footer Contact Section */
.footer-contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-2) 0;
}

.footer-contact-icon {
  width: 16px;
  height: 16px;
  color: var(--color-primary-start);
  flex-shrink: 0;
  margin-top: 2px;
}

.footer-contact-details {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.footer-contact-label {
  color: var(--color-text-tertiary);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
}

.footer-contact-link {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-normal);
  transition: all var(--duration-normal) var(--ease-in-out);
}

.footer-contact-link:hover {
  color: var(--color-primary-start);
}

/* Footer Bottom Section */
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border-primary);
  flex-wrap: wrap;
  gap: var(--space-6);
}

.footer-legal {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.footer-legal-links {
  display: flex;
  gap: var(--space-6);
  flex-wrap: wrap;
}

.footer-legal-link {
  color: var(--color-text-tertiary);
  text-decoration: none;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-normal);
  transition: all var(--duration-normal) var(--ease-in-out);
  position: relative;
}

.footer-legal-link:hover {
  color: var(--color-text-primary);
}

.footer-legal-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--gradient-primary);
  transition: width var(--duration-normal) var(--ease-in-out);
}

.footer-legal-link:hover::after {
  width: 100%;
}

.footer-copyright {
  color: var(--color-text-tertiary);
  font-size: var(--font-size-sm);
  margin: 0;
}

.footer-copyright p {
  margin: 0;
}

.footer-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-6);
  flex-wrap: wrap;
}

.footer-version-text,
.footer-location-text {
  color: var(--color-text-tertiary);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
}

.footer-location-text {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

/* Responsive Design for Footer */
/* Shift footer-main 40px right and set 70% width for screens larger than mobile */
@media (min-width: 769px) {
  .footer-main {
    width: 70%;
    margin-left: 40px;
  }
}

@media (max-width: 1024px) {
  .footer-main {
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--space-8);
  }
  
  .footer-contact,
  .footer-support {
    grid-column: span 1;
  }
  
  .footer-brand {
    grid-column: span 3;
    max-width: none;
    margin-bottom: var(--space-8);
  }
}

@media (max-width: 768px) {
  .footer {
    padding: var(--spacing-section-padding-mobile) 0 var(--space-6);
    margin-top: var(--spacing-section-padding-mobile);
  }
  
  .footer-main {
    display: flex;
    flex-direction: column;
    gap: var(--space-8);
    margin-bottom: var(--space-8);
  }
  
  .footer-brand {
    order: 1;
    margin-bottom: 0;
    text-align: center;
    padding: var(--space-6);
    background: rgba(255, 255, 255, 0.02);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border-primary);
  }
  
  .footer-brand .footer-contact-link {
    display: block;
    text-align: center;
    margin: 0 auto;
  }
  
  .footer-product {
    order: 2;
    padding: var(--space-6);
    background: rgba(255, 255, 255, 0.02);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border-primary);
  }
  
  .footer-company {
    order: 3;
    padding: var(--space-6);
    background: rgba(255, 255, 255, 0.02);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border-primary);
  }
  
  .footer-support {
    order: 4;
    padding: var(--space-6);
    background: rgba(255, 255, 255, 0.02);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border-primary);
  }
  
  .footer-section {
    display: flex;
    flex-direction: column;
  }
  
  .footer-social {
    flex-direction: row;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-4);
  }
  
  .footer-social-link {
    flex-direction: column;
    text-align: center;
    gap: var(--space-2);
    padding: var(--space-3);
    border-radius: var(--radius-base);
    background: rgba(255, 255, 255, 0.02);
    min-width: 80px;
  }
  
  .footer-social-text {
    font-size: var(--font-size-xs);
  }
  
  .footer-section-title {
    text-align: center;
    margin-bottom: var(--space-4);
    font-size: var(--font-size-base);
  }
  
  .footer-links {
    align-items: center;
    text-align: center;
    gap: var(--space-2);
  }
  
  .footer-links li {
    margin: 0;
  }
  
  .footer-link {
    font-size: var(--font-size-xs);
    padding: var(--space-1) 0;
  }
  
  .footer-contact-info {
    align-items: center;
  }
  
  .footer-contact-item {
    justify-content: center;
    text-align: center;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: var(--space-4);
  }
  
  .footer-legal {
    align-items: center;
  }
  
  .footer-legal-links {
    justify-content: center;
    gap: var(--space-4);
  }
  
  .footer-meta {
    justify-content: center;
    gap: var(--space-4);
  }
}

@media (max-width: 480px) {
  .footer-container {
    padding: 0 var(--space-3);
  }
  
  .footer-main {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
  
  .footer-brand {
    grid-column: span 1;
    margin-bottom: var(--space-4);
  }
  
  .footer-section-title {
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-3);
  }
  
  .footer-link {
    font-size: var(--font-size-xs);
    padding: var(--space-1) 0;
  }
  
  .footer-legal-links {
    flex-direction: column;
    gap: var(--space-3);
    align-items: center;
  }
  
  .footer-social {
    gap: var(--space-3);
  }
  
  .footer-social-link {
    min-width: 70px;
    padding: var(--space-2);
  }
  
  .footer-meta {
    flex-direction: column;
    gap: var(--space-2);
  }
}

/* Extra small mobile devices for footer (320px to 430px) */
@media (max-width: 430px) {
  .footer-container {
    padding: 0 var(--space-2);
  }
  
  .footer {
    padding: var(--space-12) 0 var(--space-4);
    margin-top: var(--space-12);
  }
  
  .footer-main {
    gap: var(--space-4);
  }
  
  .footer-brand,
  .footer-product,
  .footer-company,
  .footer-support {
    padding: var(--space-4);
  }
  
  .footer-description {
    font-size: var(--font-size-xs);
    line-height: var(--line-height-normal);
  }
  
  .footer-section-title {
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-2);
  }
  
  .footer-links {
    gap: var(--space-1);
  }
  
  .footer-link {
    font-size: var(--font-size-xs);
    padding: var(--space-1) 0;
  }
  
  .footer-contact-link {
    font-size: var(--font-size-xs);
  }
  
  .footer-bottom {
    gap: var(--space-3);
    padding-top: var(--space-4);
  }
  
  .footer-legal-links {
    gap: var(--space-2);
  }
  
  .footer-legal-link {
    font-size: var(--font-size-xs);
  }
  
  .footer-version-text,
  .footer-location-text {
    font-size: 10px;
  }
  
  .footer-copyright {
    font-size: var(--font-size-xs);
  }
}

/* Footer Animation Effects */
.footer-section {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.6s ease-out forwards;
}

.footer-section:nth-child(1) { animation-delay: 0.1s; }
.footer-section:nth-child(2) { animation-delay: 0.2s; }
.footer-section:nth-child(3) { animation-delay: 0.3s; }
.footer-section:nth-child(4) { animation-delay: 0.4s; }
.footer-section:nth-child(5) { animation-delay: 0.5s; }

@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Footer Hover Effects */
.footer-section:hover .footer-section-title {
  color: var(--color-primary-start);
  transition: color var(--duration-normal) var(--ease-in-out);
}

/* Accessibility Improvements */
.footer-link:focus,
.footer-social-link:focus,
.footer-contact-link:focus,
.footer-legal-link:focus {
  outline: 2px solid var(--color-primary-start);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
  .footer {
    border-top: 2px solid var(--color-text-primary);
  }
  
  .footer-link,
  .footer-social-link,
  .footer-contact-link,
  .footer-legal-link {
    border: 1px solid transparent;
  }
  
  .footer-link:hover,
  .footer-social-link:hover,
  .footer-contact-link:hover,
  .footer-legal-link:hover {
    border-color: var(--color-text-primary);
  }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
  .footer-section {
    animation: none;
    opacity: 1;
    transform: none;
  }
  
  .footer-link,
  .footer-social-link,
  .footer-contact-link,
  .footer-legal-link {
    transition: none;
  }
  
  .footer-link:hover,
  .footer-social-link:hover {
    transform: none;
  }
}
/* ====
======================================================================
   Mobile Responsive Optimizations (Task 15.1)
   ========================================================================== */

/* Mobile devices (up to 640px) */
@media (max-width: 639px) {
  /* Header mobile optimizations */
  header {
    padding: var(--space-3) 0;
  }
  
  nav {
    padding: 0 var(--space-4);
  }
  
  .logo {
    font-size: 1.5rem;
  }
  
  /* Hero section mobile optimizations */
  .hero {
    padding: var(--spacing-section-padding-mobile) var(--space-4);
    min-height: 100vh;
    align-items: flex-start;
    padding-top: 30vh;
  }
  
  .hero-content {
    padding: 0 var(--space-2);
  }
  
  .hero-brand {
    margin-bottom: var(--space-8);
  }
  
  .hero-description {
    margin-bottom: var(--space-10);
  }
  
  .hero-cta {
    flex-direction: column;
    gap: var(--space-4);
    align-items: center;
  }
  
  /* Button mobile optimizations */
  .btn-primary,
  .btn-secondary {
    width: 100%;
    max-width: 280px;
    padding: var(--space-4) var(--space-6);
    min-width: unset;
  }
  
  /* Floating elements - reduce on mobile */
  .floating-element {
    font-size: 1.5rem;
    opacity: 0.05;
  }
  
  .floating-element.brain {
    font-size: 1.8rem;
  }
  
  /* Advantages section mobile optimizations */
  .advantages-section {
    padding: var(--spacing-section-padding-mobile) 0;
  }
  
  .advantages-container {
    padding: 0 var(--space-4);
  }
  
  .advantages-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
  
  .advantage-card {
    padding: var(--space-6);
    text-align: center;
  }
  
  .advantage-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-4);
    padding-bottom: 10px;
  }
  
  .advantage-card h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-3);
  }
  
  .advantage-card p {
    font-size: var(--font-size-sm);
    line-height: var(--line-height-relaxed);
  }
  
  .advantage-details {
    font-size: var(--font-size-xs);
    margin-top: var(--space-3);
  }
  
  /* Comparison section mobile optimizations */
  .comparison-section {
    padding: var(--spacing-section-padding-mobile) 0;
  }
  
  .comparison-container {
    padding: 0 var(--space-4);
  }
  
  .comparison-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
  
  .comparison-column {
    padding: var(--space-6);
  }
  
  .comparison-header {
    text-align: center;
    margin-bottom: var(--space-6);
  }
  
  .comparison-icon {
    font-size: 2.5rem;
  }
  
  .comparison-header h3 {
    font-size: var(--font-size-xl);
    margin: var(--space-3) 0;
  }
  
  .feature-item {
    flex-direction: column;
    text-align: center;
    padding: var(--space-4);
    margin-bottom: var(--space-4);
  }
  
  .feature-icon {
    font-size: 1.5rem;
    margin-bottom: var(--space-2);
  }
  
  .feature-title {
    font-size: var(--font-size-base);
    margin-bottom: var(--space-2);
  }
  
  .feature-description {
    font-size: var(--font-size-sm);
  }
  
  .btn-demo,
  .btn-desktop {
    width: 100%;
    padding: var(--space-4) var(--space-6);
    font-size: var(--font-size-base);
  }
  
  /* Dashboard section mobile optimizations */
  .dashboard-section {
    padding: var(--spacing-section-padding-mobile) 0;
  }
  
  .dashboard-container {
    padding: 0 var(--space-4);
  }
  
  .dashboard-mockup {
    padding: var(--space-5);
    margin: 0 var(--space-2);
  }
  
  .usage-overview {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
  
  .usage-card {
    padding: var(--space-4);
  }
  
  .usage-amount {
    font-size: var(--font-size-xl);
  }
  
  .usage-label {
    font-size: var(--font-size-sm);
  }
  
  .chart-bars {
    height: 60px;
  }
  
  .chart-bar {
    min-width: 8px;
  }
  
  /* Account management mobile optimizations */
  .management-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
  
  .management-card {
    padding: var(--space-5);
  }
  
  .subscription-actions {
    flex-direction: column;
    gap: var(--space-3);
  }
  
  .action-btn {
    width: 100%;
    text-align: center;
    padding: var(--space-3) var(--space-4);
  }
  
  .device-info {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
  }
  
  .device-actions {
    width: 100%;
    justify-content: center;
  }
  
  .api-key-display {
    flex-wrap: wrap;
    gap: var(--space-2);
  }
  
  .api-actions {
    flex-direction: column;
    gap: var(--space-2);
  }
  
  /* Desktop capabilities mobile optimizations */
  .desktop-section {
    padding: var(--spacing-section-padding-mobile) 0;
  }
  
  .desktop-container {
    padding: 0 var(--space-4);
  }
  
  .capabilities-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
  
  .capability-mockup {
    padding: var(--space-5);
  }
  
  .project-browser {
    padding: var(--space-4);
  }
  
  .project-item {
    padding: var(--space-3);
    margin-bottom: var(--space-3);
  }
  
  .project-name {
    font-size: var(--font-size-base);
  }
  
  .project-description {
    font-size: var(--font-size-sm);
  }
  
  .config-section {
    margin-bottom: var(--space-6);
  }
  
  .config-group {
    flex-direction: column;
    gap: var(--space-3);
  }
  
  .config-item {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
  }
  
  .config-input,
  .config-select {
    width: 100%;
    padding: var(--space-2) var(--space-3);
  }
  
  /* Demo preview mobile optimizations */
  .demo-preview-section {
    padding: var(--spacing-section-padding-mobile) 0;
  }
  
  .demo-preview-container {
    padding: 0 var(--space-4);
  }
  
  .demo-interface {
    padding: var(--space-4);
    margin: 0 var(--space-2);
  }
  
  .chat-header {
    padding: var(--space-3);
  }
  
  .chat-messages {
    padding: var(--space-4);
    max-height: 300px;
  }
  
  .message {
    padding: var(--space-3);
    margin-bottom: var(--space-3);
  }
  
  .message-content {
    font-size: var(--font-size-sm);
  }
  
  .chat-input-area {
    padding: var(--space-3);
  }
  
  .chat-input {
    padding: var(--space-3);
    font-size: var(--font-size-sm);
  }
  
  .send-btn {
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-sm);
  }
  
  /* Quality metrics mobile optimizations */
  .quality-metrics {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
  }
  
  .metric-item {
    padding: var(--space-3);
  }
  
  .metric-label {
    font-size: var(--font-size-xs);
  }
  
  .metric-value {
    font-size: var(--font-size-sm);
  }
  
  .metric-bar {
    height: 4px;
  }
  
  .utility-score {
    grid-column: 1 / -1;
    padding: var(--space-4);
  }
  
  .utility-value {
    font-size: var(--font-size-xl);
  }
  
  /* Architecture section mobile optimizations */
  .architecture-section {
    padding: var(--spacing-section-padding-mobile) 0;
  }
  
  .architecture-container {
    padding: 0 var(--space-4);
  }
  
  .architecture-diagram {
    padding: var(--space-5);
    margin: 0 var(--space-2);
  }
  
  .agent-component {
    padding: var(--space-4);
    margin-bottom: var(--space-4);
  }
  
  .agent-title {
    font-size: var(--font-size-base);
  }
  
  .agent-description {
    font-size: var(--font-size-sm);
  }
  
  .connection-line {
    display: none; /* Hide complex connection lines on mobile */
  }
  
  /* Final CTA mobile optimizations */
  .final-cta-section {
    padding: var(--spacing-section-padding-mobile) 0;
  }
  
  .final-cta-container {
    padding: 0 var(--space-4);
  }
  
  .cta-buttons {
    flex-direction: column;
    gap: var(--space-4);
    align-items: center;
  }
  
  .cta-primary,
  .cta-secondary {
    width: 100%;
    max-width: 280px;
    padding: var(--space-4) var(--space-6);
  }
  
  /* Footer mobile optimizations */
  .footer-container {
    padding: var(--space-8) var(--space-4);
  }
  
  .social-media-container {
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-4);
  }
  
  /* Modal mobile optimizations */
  .demo-modal-content {
    width: 95%;
    margin: 5% auto;
    padding: var(--space-4);
  }
  
  .book-demo-btn {
    width: 100%;
    padding: var(--space-4);
    font-size: var(--font-size-base);
  }
  
  /* Touch interaction optimizations */
  .advantage-card,
  .comparison-column,
  .management-card,
  .capability-mockup {
    transition: transform 0.2s ease;
  }
  
  .advantage-card:active,
  .comparison-column:active,
  .management-card:active,
  .capability-mockup:active {
    transform: scale(0.98);
  }
  
  /* Ensure proper touch targets */
  button,
  .btn-primary,
  .btn-secondary,
  .btn-demo,
  .btn-desktop,
  .action-btn,
  .send-btn {
    min-height: 44px;
    min-width: 44px;
  }
  
  /* Improve text readability on mobile */
  .hero-tagline {
    font-size: clamp(0.875rem, 4vw, 1.125rem);
    line-height: var(--line-height-relaxed);
  }
  
  .hero-subtitle {
    font-size: clamp(1rem, 4vw, 1.25rem);
    line-height: var(--line-height-relaxed);
  }
  
  .hero-value-prop {
    font-size: clamp(0.875rem, 3.5vw, 1rem);
    line-height: var(--line-height-loose);
  }
}

/* Mobile landscape optimizations (480px to 640px) */
@media (min-width: 480px) and (max-width: 639px) {
  .hero-cta {
    flex-direction: row;
    justify-content: center;
    flex-wrap: wrap;
  }
  
  .btn-primary,
  .btn-secondary {
    width: auto;
    min-width: 200px;
  }
  
  .advantages-grid {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }
  
  .quality-metrics {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .utility-score {
    grid-column: 1 / -1;
  }
}/* =
=========================================================================
   Tablet and Desktop Responsive Optimizations (Task 15.2)
   ========================================================================== */

/* Tablet devices (768px to 1023px) */
@media (min-width: 768px) and (max-width: 1023px) {
  /* Header tablet optimizations */
  header {
    padding: var(--space-4) 0;
  }
  
  nav {
    padding: 0 var(--space-6);
  }
  
  .logo {
    font-size: 1.625rem;
  }
  
  .nav-links {
    gap: var(--space-6);
  }
  
  .nav-links a {
  display: inline-block; /* keeps pseudo-elements inside the clickable area */
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  position: relative;
  /* Prevent layout shift */
  transform: translateY(0);
}
  
  /* Hero section tablet optimizations */
  .hero {
    padding: calc(var(--spacing-section-padding-mobile) + 1rem) var(--space-6);
    align-items: flex-start;
    padding-top: 25vh;
  }
  
  .hero-content {
    max-width: 800px;
    padding: 0 var(--space-4);
  }
  
  .hero-brand {
    margin-bottom: var(--space-10);
  }
  
  .hero-description {
    margin-bottom: var(--space-12);
  }
  
  .hero-cta {
    flex-direction: row;
    gap: var(--space-5);
    justify-content: center;
  }
  
  /* Advantages section tablet optimizations */
  .advantages-section {
    padding: calc(var(--spacing-section-padding-mobile) + 1rem) 0;
  }
  
  .advantages-container {
    padding: 0 var(--space-6);
  }
  
  .advantages-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-8);
    max-width: 900px;
    margin: 0 auto;
  }
  
  .advantage-card {
    padding: var(--space-8);
  }
  
  .advantage-icon {
    font-size: 3rem;
    margin-bottom: var(--space-5);
  }
  
  /* Comparison section tablet optimizations */
  .comparison-section {
    padding: calc(var(--spacing-section-padding-mobile) + 1rem) 0;
  }
  
  .comparison-container {
    padding: 0 var(--space-6);
  }
  
  .comparison-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-10);
    max-width: 1000px;
    margin: 0 auto;
  }
  
  .comparison-column {
    padding: var(--space-8);
  }
  
  .feature-item {
    flex-direction: row;
    text-align: left;
    padding: var(--space-5);
  }
  
  .feature-icon {
    font-size: 1.75rem;
    margin-right: var(--space-4);
    margin-bottom: 0;
    flex-shrink: 0;
  }
  
  /* Dashboard section tablet optimizations */
  .dashboard-section {
    padding: calc(var(--spacing-section-padding-mobile) + 1rem) 0;
  }
  
  .dashboard-container {
    padding: 0 var(--space-6);
  }
  
  .dashboard-mockup {
    padding: var(--space-8);
    max-width: 800px;
    margin: 0 auto;
  }
  
  .usage-overview {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
  }
  
  .management-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
    max-width: 700px;
    margin: 0 auto;
  }
  
  .management-card {
    padding: var(--space-8);
  }
  
  /* Desktop capabilities tablet optimizations */
  .desktop-section {
    padding: calc(var(--spacing-section-padding-mobile) + 1rem) 0;
  }
  
  .desktop-container {
    padding: 0 var(--space-6);
  }
  
  .capabilities-grid {
    grid-template-columns: 1fr;
    gap: var(--space-10);
    max-width: 800px;
    margin: 0 auto;
  }
  
  .capability-mockup {
    padding: var(--space-8);
  }
  
  /* Demo preview tablet optimizations */
  .demo-preview-section {
    padding: calc(var(--spacing-section-padding-mobile) + 1rem) 0;
  }
  
  .demo-preview-container {
    padding: 0 var(--space-6);
  }
  
  .demo-interface {
    padding: var(--space-6);
    max-width: 700px;
    margin: 0 auto;
  }
  
  .chat-messages {
    max-height: 400px;
  }
  
  /* Quality metrics tablet optimizations */
  .quality-metrics {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-4);
  }
  
  .utility-score {
    grid-column: 1 / -1;
  }
  
  /* Architecture section tablet optimizations */
  .architecture-section {
    padding: calc(var(--spacing-section-padding-mobile) + 1rem) 0;
  }
  
  .architecture-container {
    padding: 0 var(--space-6);
  }
  
  .architecture-diagram {
    padding: var(--space-8);
    max-width: 800px;
    margin: 0 auto;
  }
  
  /* Final CTA tablet optimizations */
  .final-cta-section {
    padding: calc(var(--spacing-section-padding-mobile) + 1rem) 0;
  }
  
  .final-cta-container {
    padding: 0 var(--space-6);
  }
  
  .cta-buttons {
    flex-direction: row;
    gap: var(--space-6);
    justify-content: center;
  }
  
  .cta-primary,
  .cta-secondary {
    width: auto;
    min-width: 220px;
  }
}

/* Desktop devices (1024px and up) */
@media (min-width: 1024px) {
  /* Header desktop optimizations */
  header {
    padding: var(--space-5) 0;
  }
  
  nav {
    padding: 0 var(--space-10);
  }
  
  .logo {
    font-size: 1.75rem;
  }
  
  .nav-links {
    gap: var(--space-10);
  }
  
  .nav-links a {
    font-size: var(--font-size-base);
    padding: var(--space-2) var(--space-3);
  }
  
  /* Hero section desktop optimizations */
  .hero {
    padding: var(--spacing-section-padding-desktop) var(--space-10);
  }
  
  .hero-content {
    max-width: 1000px;
    padding: 0 var(--space-5);
  }
  
  .hero-brand {
    margin-bottom: var(--space-12);
  }
  
  .hero-description {
    margin-bottom: var(--space-16);
  }
  
  .hero-cta {
    flex-direction: row;
    gap: var(--space-6);
    justify-content: center;
  }
  
  /* Enhanced hover effects for desktop */
  .btn-primary:hover,
  .btn-secondary:hover {
    transform: translateY(-3px) scale(1.02);
  }
  
  .advantage-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
  }
  
  .comparison-column:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
  }
  
  /* Advantages section desktop optimizations */
  .advantages-section {
    padding: var(--spacing-section-padding-desktop) 0;
  }
  
  .advantages-container {
    padding: 0 var(--space-10);
  }
  
  .advantages-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-10);
    max-width: 1200px;
    margin: 0 auto;
  }
  
  .advantage-card {
    padding: var(--spacing-card-padding);
    transition: all var(--duration-normal) var(--ease-in-out);
  }
  
  .advantage-icon {
    font-size: 3.5rem;
    margin-bottom: var(--space-6);
  }
  
  /* Comparison section desktop optimizations */
  .comparison-section {
    padding: var(--spacing-section-padding-desktop) 0;
  }
  
  .comparison-container {
    padding: 0 var(--space-10);
  }
  
  .comparison-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
    max-width: 1200px;
    margin: 0 auto;
  }
  
  .comparison-column {
    padding: var(--spacing-card-padding);
    transition: all var(--duration-normal) var(--ease-in-out);
  }
  
  .feature-item {
    flex-direction: row;
    text-align: left;
    padding: var(--space-6);
    transition: all var(--duration-normal) var(--ease-in-out);
  }
  
  .feature-item:hover {
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
  }
  
  .feature-icon {
    font-size: 2rem;
    margin-right: var(--space-5);
    margin-bottom: 0;
    flex-shrink: 0;
  }
  
  /* Dashboard section desktop optimizations */
  .dashboard-section {
    padding: var(--spacing-section-padding-desktop) 0;
  }
  
  .dashboard-container {
    padding: 0 var(--space-10);
  }
  
  .dashboard-mockup {
    padding: var(--spacing-card-padding);
    max-width: 1000px;
    margin: 0 auto;
  }
  
  .usage-overview {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
  }
  
  .management-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-10);
    max-width: 1000px;
    margin: 0 auto;
  }
  
  .management-card {
    padding: var(--spacing-card-padding);
    transition: all var(--duration-normal) var(--ease-in-out);
  }
  
  .management-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
  }
  
  /* Desktop capabilities desktop optimizations */
  .desktop-section {
    padding: var(--spacing-section-padding-desktop) 0;
  }
  
  .desktop-container {
    padding: 0 var(--space-10);
  }
  
  .capabilities-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
    max-width: 1200px;
    margin: 0 auto;
  }
  
  .capability-mockup {
    padding: var(--spacing-card-padding);
    transition: all var(--duration-normal) var(--ease-in-out);
  }
  
  .capability-mockup:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
  }
  
  /* Demo preview desktop optimizations */
  .demo-preview-section {
    padding: var(--spacing-section-padding-desktop) 0;
  }
  
  .demo-preview-container {
    padding: 0 var(--space-10);
  }
  
  .demo-interface {
    padding: var(--spacing-card-padding);
    max-width: 800px;
    margin: 0 auto;
  }
  
  .chat-messages {
    max-height: 500px;
  }
  
  /* Quality metrics desktop optimizations */
  .quality-metrics {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
  }
  
  .metric-item {
    padding: var(--space-5);
    transition: all var(--duration-normal) var(--ease-in-out);
  }
  
  .metric-item:hover {
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
  }
  
  .utility-score {
    grid-column: 1 / -1;
    padding: var(--space-8);
  }
  
  /* Architecture section desktop optimizations */
  .architecture-section {
    padding: var(--spacing-section-padding-desktop) 0;
  }
  
  .architecture-container {
    padding: 0 var(--space-10);
  }
  
  .architecture-diagram {
    padding: var(--spacing-card-padding);
    max-width: 1000px;
    margin: 0 auto;
  }
  
  .agent-component {
    padding: var(--space-8);
    transition: all var(--duration-normal) var(--ease-in-out);
  }
  
  .agent-component:hover {
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
  }
  
  /* Connection lines visible on desktop */
  .connection-line {
    display: block;
    opacity: 0.3;
    transition: opacity var(--duration-normal) var(--ease-in-out);
  }
  
  .architecture-diagram:hover .connection-line {
    opacity: 0.6;
  }
  
  /* Final CTA desktop optimizations */
  .final-cta-section {
    padding: var(--spacing-section-padding-desktop) 0;
  }
  
  .final-cta-container {
    padding: 0 var(--space-10);
  }
  
  .cta-buttons {
    flex-direction: row;
    gap: var(--space-8);
    justify-content: center;
  }
  
  .cta-primary,
  .cta-secondary {
    width: auto;
    min-width: 240px;
  }
  
  /* Footer desktop optimizations */
  .footer-container {
    padding: var(--space-12) var(--space-10);
  }
  
  .social-media-container {
    gap: var(--space-6);
  }
  
  /* Modal desktop optimizations */
  .demo-modal-content {
    width: 80%;
    max-width: 600px;
    margin: 10% auto;
    padding: var(--space-8);
  }
  
  .book-demo-btn {
    width: auto;
    min-width: 200px;
    padding: var(--space-4) var(--space-8);
  }

  /* Comparison section height and styling improvements (desktop) */
  .comparison-section {
    padding: var(--space-12) 0;
  }

  .comparison-section h2 {
    margin-bottom: var(--space-6);
  }

  .comparison-intro {
    margin-bottom: var(--space-8);
    max-width: 900px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.06), rgba(139, 92, 246, 0.05));
    border: 1px solid var(--color-border-primary);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
  }

  /* Cap grid height so total section height ~1000px including heading/intro */
  .comparison-grid {
    height: 720px;
    max-height: 720px;
    align-items: stretch;
  }

  /* Scrollable columns with sticky header and CTA */
  .comparison-column {
    height: 100%;
    overflow-y: auto;
    scroll-behavior: smooth;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25), inset 0 0 0 1px rgba(255, 255, 255, 0.04);
  }

  .desktop-column {
    box-shadow: 0 12px 28px rgba(99, 102, 241, 0.25), inset 0 0 0 1px rgba(255, 255, 255, 0.05);
  }

  .comparison-header {
    position: sticky;
    top: 0;
    z-index: 2;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    border-bottom: 1px solid var(--color-border-primary);
  }

  .comparison-cta {
    position: sticky;
    bottom: 0;
    z-index: 2;
    background: linear-gradient(180deg, rgba(0,0,0,0), rgba(0,0,0,0.35));
    border-top: 1px solid var(--color-border-primary);
    padding-top: var(--space-4);
  }

  /* Row delineation and subtle alternation for better scanability */
  .feature-list { gap: 0; }
  .feature-item + .feature-item { border-top: 1px solid rgba(255, 255, 255, 0.06); }
  .feature-item:nth-child(odd) { background: rgba(255, 255, 255, 0.035); }

  /* Themed thin scrollbars */
  .comparison-column::-webkit-scrollbar { width: 8px; }
  .comparison-column::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, rgba(99,102,241,0.8), rgba(139,92,246,0.7));
    border-radius: 8px;
  }
  .comparison-column::-webkit-scrollbar-track { background: transparent; }
  .comparison-column { scrollbar-color: rgba(99, 102, 241, 0.7) transparent; scrollbar-width: thin; }
}

/* Large desktop devices (1280px and up) */
@media (min-width: 1280px) {
  /* Enhanced spacing for large screens */
  .hero-content {
    max-width: 1200px;
  }
  
  .advantages-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-12);
    max-width: 1400px;
  }
  
  .comparison-grid {
    gap: var(--space-16);
    max-width: 1400px;
  }
  
  .dashboard-mockup {
    max-width: 1200px;
  }
  
  .capabilities-grid {
    gap: var(--space-16);
    max-width: 1400px;
  }
  
  .management-grid {
    max-width: 1200px;
  }
  
  /* Enhanced typography for large screens */
  .hero-title {
    font-size: clamp(4rem, 8vw, 6rem);
  }
  
  .hero-subtitle {
    font-size: clamp(1.25rem, 3vw, 2rem);
  }
  
  .hero-tagline {
    font-size: clamp(1.125rem, 2.5vw, 1.5rem);
  }
}

/* Ultra-wide desktop devices (1536px and up) */
@media (min-width: 1536px) {
  /* Maximum container widths for ultra-wide screens */
  .hero-content {
    max-width: 1400px;
  }
  
  .advantages-container,
  .comparison-container,
  .dashboard-container,
  .desktop-container,
  .demo-preview-container,
  .architecture-container,
  .final-cta-container {
    max-width: 1600px;
    margin: 0 auto;
  }
  
  /* Prevent excessive stretching on ultra-wide screens */
  .advantages-grid {
    max-width: 1600px;
  }
  
  .comparison-grid {
    max-width: 1600px;
  }
  
  .capabilities-grid {
    max-width: 1600px;
  }
}

/* Cross-browser compatibility fixes */
@supports (-webkit-backdrop-filter: blur(10px)) or (backdrop-filter: blur(10px)) {
  header {
    backdrop-filter: var(--backdrop-blur-sm);
  }
  
  header.scrolled {
    backdrop-filter: var(--backdrop-blur-md);
  }
  
  .mobile-menu {
    backdrop-filter: var(--backdrop-blur-md);
  }
}

/* Fallback for browsers without backdrop-filter support */
@supports not ((-webkit-backdrop-filter: blur(10px)) or (backdrop-filter: blur(10px))) {
  header {
    background: rgba(0, 0, 0, 0.9);
  }
  
  header.scrolled {
    background: rgba(0, 0, 0, 0.95);
  }
  
  .mobile-menu {
    background: rgba(0, 0, 0, 0.98);
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .advantage-card,
  .comparison-column,
  .management-card,
  .capability-mockup {
    border: 2px solid var(--color-border-secondary);
  }
  
  .btn-primary,
  .btn-secondary {
    border: 2px solid var(--color-primary-start);
  }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .floating-element {
    animation: none;
  }
  
  .hero-background::before,
  .hero-background::after {
    animation: none;
  }
}