/* ===================================================================
   Chatari Light Theme - Single Source of Truth
   Warm neutrals with amber-brown accents.
   Replaces: irresistible-theme.css + irresistible-theme-light.css
   =================================================================== */

/* Fonts are loaded via <link> tags in templates (non-render-blocking) */

/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* Root Variables */
:root {
  color-scheme: light;

  /* ===== Color System ===== */
  /* Primary - Warm amber-brown */
  --primary-50: #fffbeb;
  --primary-100: #fef3c7;
  --primary-200: #fde68a;
  --primary-300: #fcd34d;
  --primary-400: #d97706;
  --primary-500: #b45309;
  --primary-600: #92400e;
  --primary-700: #78350f;
  --primary-800: #5c2d0e;
  --primary-900: #451a03;

  /* Accent - Warm teal */
  --accent-300: #6ee7b7;
  --accent-400: #34d399;
  --accent-500: #059669;
  --accent-600: #047857;
  --accent-700: #065f46;

  /* Special colors */
  --cyan: #0891b2;
  --pink: #db2777;

  /* Semantic colors */
  --success: #22c55e;
  --success-light: #4ade80;
  --success-dark: #16a34a;
  --warning: #f59e0b;
  --warning-light: #fbbf24;
  --warning-dark: #d97706;
  --danger: #ef4444;
  --danger-light: #f87171;
  --danger-dark: #dc2626;
  --info: #3b82f6;
  --info-light: #60a5fa;
  --info-dark: #2563eb;

  /* Neutral colors - warm stone palette */
  --gray-50: #fafaf9;
  --gray-100: #f5f5f4;
  --gray-200: #e7e5e4;
  --gray-300: #d6d3d1;
  --gray-400: #a8a29e;
  --gray-500: #78716c;
  --gray-600: #57534e;
  --gray-700: #44403c;
  --gray-800: #292524;
  --gray-900: #1c1917;
  --gray-950: #0c0a09;

  /* Component colors */
  --background: #faf8f5;
  --surface: #ffffff;
  --surface-hover: rgba(28, 25, 23, 0.04);
  --border: #e7e5e4;
  --border-hover: #d6d3d1;
  --text-primary: #1c1917;
  --text-secondary: #57534e;
  --text-tertiary: #6e6864;
  --primary: #b45309;

  /* ===== Typography System ===== */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
  --font-display: 'Space Grotesk', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', 'Monaco', 'Inconsolata', 'Fira Code', 'Courier New', monospace;

  /* Font sizes */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;
  --text-7xl: 4.5rem;

  /* Line heights */
  --leading-none: 1;
  --leading-tight: 1.25;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;
  --leading-loose: 2;

  /* Font weights */
  --font-thin: 100;
  --font-light: 300;
  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;
  --font-extrabold: 800;
  --font-black: 900;

  /* ===== Spacing System ===== */
  --space-0: 0;
  --space-px: 1px;
  --space-0-5: 0.125rem;
  --space-1: 0.25rem;
  --space-1-5: 0.375rem;
  --space-2: 0.5rem;
  --space-2-5: 0.625rem;
  --space-3: 0.75rem;
  --space-3-5: 0.875rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-7: 1.75rem;
  --space-8: 2rem;
  --space-9: 2.25rem;
  --space-10: 2.5rem;
  --space-11: 2.75rem;
  --space-12: 3rem;
  --space-14: 3.5rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-28: 7rem;
  --space-32: 8rem;

  /* ===== Border Radius ===== */
  --radius-none: 0;
  --radius-sm: 0.125rem;
  --radius-base: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
  --radius-2xl: 1rem;
  --radius-3xl: 1.5rem;
  --radius-full: 9999px;

  /* ===== Shadows - warm-tinted ===== */
  --shadow-none: none;
  --shadow-xs: 0 1px 2px rgba(28, 25, 23, 0.04);
  --shadow-sm: 0 1px 3px rgba(28, 25, 23, 0.06), 0 1px 2px rgba(28, 25, 23, 0.04);
  --shadow-md: 0 4px 6px -1px rgba(28, 25, 23, 0.06), 0 2px 4px -1px rgba(28, 25, 23, 0.04);
  --shadow-lg: 0 10px 15px -3px rgba(28, 25, 23, 0.07), 0 4px 6px -2px rgba(28, 25, 23, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(28, 25, 23, 0.08), 0 10px 10px -5px rgba(28, 25, 23, 0.03);
  --shadow-2xl: 0 25px 50px -12px rgba(28, 25, 23, 0.15);
  --shadow-inner: inset 0 2px 4px 0 rgba(28, 25, 23, 0.04);

  /* Colored shadows */
  --shadow-primary: 0 10px 25px -3px rgba(180, 83, 9, 0.2);
  --shadow-success: 0 10px 25px -3px rgba(34, 197, 94, 0.3);
  --shadow-danger: 0 10px 25px -3px rgba(239, 68, 68, 0.3);
  --shadow-glow: 0 0 20px rgba(180, 83, 9, 0.15);

  /* ===== Glass Morphism - light ===== */
  --glass-bg: rgba(255, 255, 255, 0.8);
  --glass-bg-heavy: rgba(255, 255, 255, 0.95);
  --glass-bg-light: rgba(255, 255, 255, 0.6);
  --glass-blur: blur(12px);
  --glass-blur-heavy: blur(20px);
  --glass-blur-light: blur(8px);
  --glass-border: 1px solid rgba(28, 25, 23, 0.08);
  --glass-border-light: 1px solid rgba(28, 25, 23, 0.05);
  --glass-shadow: 0 8px 32px rgba(28, 25, 23, 0.06);

  /* ===== Animation ===== */
  --transition-fast: 150ms;
  --transition-base: 200ms;
  --transition-slow: 300ms;
  --transition-slower: 500ms;

  --ease-in: cubic-bezier(0.4, 0, 1, 1);
  --ease-out: cubic-bezier(0, 0, 0.2, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);

  /* ===== Z-index Scale ===== */
  --z-0: 0;
  --z-10: 10;
  --z-20: 20;
  --z-30: 30;
  --z-40: 40;
  --z-50: 50;
  --z-60: 60;
  --z-70: 70;
  --z-80: 80;
  --z-90: 90;
  --z-100: 100;
  --z-dropdown: 1000;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
  --z-toast: 1080;

  /* ===== Breakpoints ===== */
  --screen-sm: 640px;
  --screen-md: 768px;
  --screen-lg: 1024px;
  --screen-xl: 1280px;
  --screen-2xl: 1536px;

  /* ===== Focus States ===== */
  --focus-ring: 0 0 0 3px rgba(180, 83, 9, 0.3);
  --focus-ring-offset: 0 0 0 2px var(--background), 0 0 0 5px rgba(180, 83, 9, 0.3);

  /* ===== Form System ===== */
  --form-padding: var(--space-3) var(--space-4);
  --form-padding-sm: var(--space-2) var(--space-3);
  --form-padding-lg: var(--space-4) var(--space-5);
  --form-border-radius: var(--radius-lg);
  --form-bg: rgba(250, 248, 245, 0.6);
  --form-border: 1px solid var(--gray-300);
  --form-border-focus: 1px solid var(--primary-500);
  --form-shadow-focus: var(--focus-ring);
  --form-transition: all var(--transition-base) var(--ease-in-out);

  /* ===== Touch Targets ===== */
  --touch-target: 44px;
  --touch-target-sm: 36px;
  --touch-target-lg: 48px;

  /* ===== Chatari Compatibility Variables ===== */
  --chatari-primary: #b45309;
  --chatari-primary-dark: #78350f;
  --chatari-primary-light: #d97706;
  --chatari-secondary: #059669;
  --chatari-bg-dark: #faf8f5;
  --chatari-bg-darker: #f5f0eb;
  --chatari-bg-card: #ffffff;
  --chatari-bg-card-hover: #faf8f5;
  --chatari-text-primary: #1c1917;
  --chatari-text-secondary: #57534e;
  --chatari-text-muted: #78716c;
  --chatari-border-dark: #e7e5e4;
  --chatari-border-light: #d6d3d1;
  --chatari-shadow: 0 4px 6px -1px rgba(28, 25, 23, 0.06), 0 2px 4px -1px rgba(28, 25, 23, 0.04);
  --chatari-shadow-lg: 0 20px 25px -5px rgba(28, 25, 23, 0.08), 0 10px 10px -5px rgba(28, 25, 23, 0.04);
  --chatari-shadow-glow: 0 0 30px rgba(180, 83, 9, 0.15);
}

/* Base Body Styles */
body {
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background-color: var(--background);
  color: var(--text-primary);
  line-height: var(--leading-normal);
  min-height: 100vh;
  overflow-x: hidden;
}

/* Selection Styles */
::selection {
  background-color: rgba(217, 119, 6, 0.2);
  color: #1c1917;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: #f5f0eb;
}

::-webkit-scrollbar-thumb {
  background: rgba(180, 83, 9, 0.25);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(180, 83, 9, 0.4);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: var(--font-bold);
  line-height: var(--leading-tight);
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

h1 { font-size: var(--text-5xl); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-3xl); }
h4 { font-size: var(--text-2xl); }
h5 { font-size: var(--text-xl); }
h6 { font-size: var(--text-lg); }

/* Gradient Text */
.gradient-text {
  background: linear-gradient(135deg, #78350f, #b45309, #d97706);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: var(--font-semibold);
}

/* Glass Morphism Components */
.glass-morphism,
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: var(--glass-border);
  box-shadow: var(--glass-shadow);
  border-radius: var(--radius-2xl);
  padding: var(--space-6);
}

/* Grid Background Pattern */
.grid-pattern {
  background-image:
    linear-gradient(rgba(180, 83, 9, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(180, 83, 9, 0.03) 1px, transparent 1px);
  background-size: 50px 50px;
}

/* ===== Button System ===== */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  line-height: var(--leading-tight);
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: var(--radius-lg);
  cursor: pointer;
  user-select: none;
  transition: all var(--transition-base) var(--ease-in-out);
  min-height: 44px;
  white-space: nowrap;
}

/* Primary Button */
.btn-primary {
  background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
  color: white;
  box-shadow: var(--shadow-md), 0 4px 12px rgba(180, 83, 9, 0.15);
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-2px);
  background: linear-gradient(135deg, var(--primary-400), var(--primary-500));
  box-shadow: var(--shadow-lg), var(--shadow-primary);
}

.btn-primary:active:not(:disabled) {
  transform: translateY(0);
  box-shadow: var(--shadow-sm), 0 2px 8px rgba(180, 83, 9, 0.15);
}

/* Secondary Button */
.btn-secondary {
  background: rgba(28, 25, 23, 0.03);
  color: var(--primary-500);
  border: 1px solid rgba(28, 25, 23, 0.12);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover:not(:disabled) {
  background: rgba(180, 83, 9, 0.06);
  border-color: rgba(180, 83, 9, 0.3);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md), 0 4px 12px rgba(180, 83, 9, 0.1);
}

/* Ghost Button */
.btn-ghost {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-ghost:hover:not(:disabled) {
  background: rgba(28, 25, 23, 0.04);
  border-color: var(--border-hover);
  transform: translateY(-1px);
}

/* Button Sizes */
.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  min-height: 36px;
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-lg);
  min-height: 48px;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* ===== Form System ===== */
.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background: rgba(250, 248, 245, 0.6);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-lg);
  color: var(--text-primary);
  font-size: var(--text-base);
  font-family: var(--font-sans);
  line-height: var(--leading-normal);
  transition: all var(--transition-base) var(--ease-in-out);
  outline: none;
  min-height: 44px;
}

.form-input:hover:not(:focus):not(:disabled),
.form-select:hover:not(:focus):not(:disabled),
.form-textarea:hover:not(:focus):not(:disabled) {
  border-color: var(--gray-400);
  background: rgba(250, 248, 245, 0.8);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--primary-500);
  box-shadow: 0 0 0 3px rgba(180, 83, 9, 0.15);
  background: #ffffff;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-tertiary);
  opacity: 1;
}

/* ===== Navigation Bar ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-dropdown);
  background: rgba(250, 248, 245, 0.85);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid rgba(28, 25, 23, 0.08);
  padding: var(--space-4) 0;
}

.navbar-container {
  max-width: 80rem;
  margin: 0 auto;
  padding: 0 var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar-brand {
  font-size: var(--text-2xl);
  font-weight: var(--font-bold);
  color: var(--text-primary);
  text-decoration: none;
  transition: all var(--transition-base);
}

.navbar-brand:hover {
  color: var(--primary-500);
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  list-style: none;
}

.navbar-nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  transition: all var(--transition-base);
  position: relative;
}

.navbar-nav a:hover {
  color: var(--primary-500);
}

.navbar-nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-500);
  transition: width var(--transition-base);
}

.navbar-nav a:hover::after {
  width: 100%;
}

/* ===== Hero Section ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-20) var(--space-6);
  background: var(--background);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(180, 83, 9, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(180, 83, 9, 0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  opacity: 0.5;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 64rem;
  margin: 0 auto;
}

.hero-title {
  font-size: clamp(2.5rem, 8vw, 4.5rem);
  font-weight: var(--font-black);
  line-height: 1.1;
  margin-bottom: var(--space-6);
  background: linear-gradient(135deg, #78350f, #92400e, #b45309);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: var(--text-xl);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-12);
  max-width: 48rem;
  margin-left: auto;
  margin-right: auto;
}

.hero-cta {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
}

/* ===== Section Styles ===== */
.section {
  padding: var(--space-24) var(--space-6);
  position: relative;
}

.section-title {
  font-size: var(--text-4xl);
  font-weight: var(--font-bold);
  text-align: center;
  margin-bottom: var(--space-4);
  color: var(--text-primary);
}

.section-subtitle {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  text-align: center;
  max-width: 48rem;
  margin: 0 auto var(--space-12);
  line-height: var(--leading-relaxed);
}

/* ===== Cards Grid ===== */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-6);
  max-width: 80rem;
  margin: 0 auto;
}

.card {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid rgba(28, 25, 23, 0.08);
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  transition: all var(--transition-slow);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(180, 83, 9, 0.06), transparent);
  opacity: 0;
  transition: opacity var(--transition-slow);
}

.card:hover {
  transform: translateY(-8px);
  border-color: rgba(180, 83, 9, 0.3);
  box-shadow: var(--shadow-lg), 0 20px 40px rgba(180, 83, 9, 0.08);
}

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

.card-icon {
  width: 48px;
  height: 48px;
  margin-bottom: var(--space-4);
  color: var(--primary-500);
}

.card-title {
  font-size: var(--text-2xl);
  font-weight: var(--font-semibold);
  margin-bottom: var(--space-3);
  color: var(--text-primary);
}

.card-description {
  font-size: var(--text-base);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
}

/* ===== Animations ===== */
@keyframes glow-pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

.glow-pulse {
  animation: glow-pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

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

.gradient-animate {
  background-size: 200% 200%;
  animation: gradient-shift 3s ease infinite;
}

/* ===== Container ===== */
.container {
  max-width: 80rem;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

/* ===== Utility Classes ===== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.flex { display: flex; }
.inline-flex { display: inline-flex; }
.grid { display: grid; }

.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }

.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

.mt-4 { margin-top: var(--space-4); }
.mt-8 { margin-top: var(--space-8); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-8 { margin-bottom: var(--space-8); }

.p-4 { padding: var(--space-4); }
.p-6 { padding: var(--space-6); }
.px-4 { padding-left: var(--space-4); padding-right: var(--space-4); }
.py-4 { padding-top: var(--space-4); padding-bottom: var(--space-4); }

.w-full { width: 100%; }
.h-full { height: 100%; }

.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-2xl { border-radius: var(--radius-2xl); }

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
  .hero-title {
    font-size: var(--text-4xl);
  }

  .hero-subtitle {
    font-size: var(--text-lg);
  }

  .cards-grid {
    grid-template-columns: 1fr;
  }

  .navbar-nav {
    display: none;
  }

  .hero-cta {
    flex-direction: column;
    align-items: stretch;
  }

  .section {
    padding: var(--space-16) var(--space-4);
  }
}

@media (max-width: 640px) {
  .hero-title {
    font-size: var(--text-3xl);
  }

  .section-title {
    font-size: var(--text-3xl);
  }

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

/* ===== Special Effects ===== */
.glow-effect {
  box-shadow: 0 0 30px rgba(180, 83, 9, 0.15);
}

.hover-lift {
  transition: transform var(--transition-base);
}

.hover-lift:hover {
  transform: translateY(-4px);
}

/* Gradient Backgrounds */
.bg-gradient-primary {
  background: linear-gradient(135deg, var(--primary-600), var(--primary-400));
}

.bg-gradient-dark {
  background: linear-gradient(180deg, #faf8f5, #f5f0eb);
}

/* Text Gradients */
.text-gradient-primary {
  background: linear-gradient(135deg, var(--primary-500), var(--accent-500));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-gradient-accent {
  background: linear-gradient(135deg, var(--accent-400), var(--pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ===== Chatari Component Classes ===== */

/* Base Styles */
body.chatari-theme {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.6;
  color: var(--chatari-text-primary);
  background-color: var(--chatari-bg-dark);
  overflow-x: hidden;
}

/* Container */
.chatari-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Navigation */
.chatari-navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(250, 248, 245, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--chatari-border-dark);
  z-index: 1000;
  transition: all 0.3s ease;
}

.chatari-navbar .chatari-container {
  padding: 1rem 20px;
}

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

.chatari-nav-brand {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--chatari-primary);
  letter-spacing: -0.02em;
  text-decoration: none;
}

.chatari-nav-menu {
  display: flex;
  list-style: none;
  gap: 2rem;
  align-items: center;
  margin: 0;
  padding: 0;
}

.chatari-nav-menu a {
  text-decoration: none;
  color: var(--chatari-text-secondary);
  font-weight: 500;
  transition: color 0.3s ease;
}

.chatari-nav-menu a:hover {
  color: var(--chatari-primary);
}

.chatari-btn-nav {
  background: var(--chatari-primary);
  color: white !important;
  padding: 0.5rem 1.5rem;
  border-radius: 8px;
  transition: all 0.3s ease;
}

.chatari-btn-nav:hover {
  background: var(--chatari-primary-light);
  box-shadow: var(--chatari-shadow-glow);
}

/* Buttons */
.chatari-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 2rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
  text-align: center;
  gap: 0.5rem;
  min-height: 48px;
  box-sizing: border-box;
  width: 100%;
}

.chatari-btn-primary {
  background: var(--chatari-primary);
  color: white;
  position: relative;
  overflow: hidden;
}

.chatari-btn-primary::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.chatari-btn-primary:hover::before {
  width: 300px;
  height: 300px;
}

.chatari-btn-primary:hover {
  background: var(--chatari-primary-light);
  transform: translateY(-2px);
  box-shadow: var(--chatari-shadow-glow);
}

.chatari-btn-secondary {
  background: transparent;
  color: var(--chatari-primary);
  border: 2px solid var(--chatari-primary);
}

.chatari-btn-secondary:hover {
  background: var(--chatari-primary);
  color: white;
  box-shadow: var(--chatari-shadow-glow);
}

.chatari-btn-outline {
  background: transparent;
  border: 2px solid var(--chatari-primary);
  color: var(--chatari-primary);
}

.chatari-btn-outline:hover {
  background: var(--chatari-primary);
  color: white;
  box-shadow: var(--chatari-shadow-glow);
}

/* Button Size Variants */
.chatari-btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  min-height: 36px;
}

.chatari-btn-lg {
  padding: 1rem 2.5rem;
  font-size: 1.125rem;
  min-height: 56px;
}

/* Button Width Modifiers */
.chatari-btn-inline {
  width: auto;
  display: inline-flex;
}

.chatari-btn-full {
  width: 100%;
}

/* Button Group */
.chatari-btn-group {
  display: flex;
  gap: 1rem;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
}

.chatari-btn-group .chatari-btn {
  flex: 1;
  min-width: 120px;
}

/* Disabled State */
.chatari-btn:disabled,
.chatari-btn[disabled] {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

/* Cards */
.chatari-card {
  padding: 2.5rem;
  background: var(--chatari-bg-card);
  border-radius: 16px;
  border: 1px solid var(--chatari-border-dark);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.chatari-card::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(180, 83, 9, 0.04) 0%, transparent 70%);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.chatari-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--chatari-shadow-lg);
  border-color: var(--chatari-primary);
  background: var(--chatari-bg-card-hover);
}

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

/* Form Elements */
.chatari-input {
  width: 100%;
  padding: 1rem 1.5rem;
  font-size: 1rem;
  border: 2px solid var(--chatari-border-dark);
  background: #ffffff;
  color: var(--chatari-text-primary);
  border-radius: 8px;
  transition: all 0.3s ease;
}

.chatari-input::placeholder {
  color: var(--chatari-text-muted);
}

.chatari-input:focus {
  outline: none;
  border-color: var(--chatari-primary);
  background: #ffffff;
}

/* Footer */
.chatari-footer {
  padding: 80px 0 30px;
  background: #f5f0eb;
  color: #1c1917;
  border-top: 1px solid var(--chatari-border-dark);
}

.chatari-footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.chatari-footer-brand h3 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--chatari-primary);
}

.chatari-footer-brand p {
  opacity: 0.8;
}

.chatari-footer-links h4 {
  margin-bottom: 1rem;
}

.chatari-footer-links ul {
  list-style: none;
  padding: 0;
}

.chatari-footer-links li {
  margin-bottom: 0.5rem;
}

.chatari-footer-links a {
  color: #1c1917;
  text-decoration: none;
  opacity: 0.8;
  transition: opacity 0.3s ease;
}

.chatari-footer-links a:hover {
  opacity: 1;
}

.chatari-footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(28, 25, 23, 0.1);
  opacity: 0.8;
}

/* Hamburger Menu */
.chatari-hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
}

.chatari-hamburger span {
  width: 25px;
  height: 3px;
  background: var(--chatari-text-primary);
  margin: 3px 0;
  transition: 0.3s;
}

/* Responsive Design */
@media (max-width: 768px) {
  .chatari-nav-menu {
    position: fixed;
    left: -100%;
    top: 70px;
    flex-direction: column;
    background-color: var(--chatari-bg-darker);
    width: 100%;
    text-align: center;
    transition: 0.3s;
    box-shadow: var(--chatari-shadow-lg);
    padding: 2rem 0;
    border-top: 1px solid var(--chatari-border-dark);
  }

  .chatari-nav-menu.active {
    left: 0;
  }

  .chatari-hamburger {
    display: flex;
  }

  .chatari-footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  /* Button Responsive */
  .chatari-btn {
    padding: 0.75rem 1.5rem;
    font-size: 0.9375rem;
  }

  .chatari-btn-group {
    flex-direction: column;
    width: 100%;
  }

  .chatari-btn-group .chatari-btn {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .chatari-btn {
    padding: 0.75rem 1.25rem;
    font-size: 0.875rem;
    min-height: 44px;
  }

  .chatari-btn-sm {
    padding: 0.5rem 0.875rem;
    font-size: 0.8125rem;
    min-height: 32px;
  }

  .chatari-btn-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
    min-height: 52px;
  }
}

/* Animations */
@keyframes chatari-pulse {
  0%, 100% { transform: scale(1); opacity: 0.5; }
  50% { transform: scale(1.1); opacity: 0.3; }
}

@keyframes chatari-rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Utility Classes */
.chatari-text-center { text-align: center; }
.chatari-text-primary { color: var(--chatari-primary); }
.chatari-text-secondary { color: var(--chatari-text-secondary); }
.chatari-mt-1 { margin-top: 0.5rem; }
.chatari-mt-2 { margin-top: 1rem; }
.chatari-mt-3 { margin-top: 1.5rem; }
.chatari-mt-4 { margin-top: 2rem; }
.chatari-mb-1 { margin-bottom: 0.5rem; }
.chatari-mb-2 { margin-bottom: 1rem; }
.chatari-mb-3 { margin-bottom: 1.5rem; }
.chatari-mb-4 { margin-bottom: 2rem; }

/* ===================================================================
   Shared tokens & components used by comparison, model, and other
   non-homepage pages. Extracted from homepage.css so those pages
   no longer need to load it.
   =================================================================== */

/* Additional design tokens (homepage-compatible aliases) */
:root {
  --bg-primary: #faf8f5;
  --bg-secondary: #f5f0eb;
  --bg-tertiary: #ede8e1;
  --bg-card: rgba(255, 253, 250, 0.85);

  --text-muted: #736c67; /* 4.87:1 contrast on #faf8f5 — passes WCAG AA */

  --border-subtle: rgba(28, 25, 23, 0.08);
  --border-light: rgba(28, 25, 23, 0.12);
  --border-accent: rgba(180, 83, 9, 0.3);

  --gradient-primary: linear-gradient(135deg, #b45309 0%, #92400e 100%);
  --gradient-text: linear-gradient(135deg, #78350f 0%, #92400e 50%, #b45309 100%);
  --gradient-subtle: linear-gradient(135deg, rgba(180, 83, 9, 0.04) 0%, rgba(217, 119, 6, 0.04) 100%);

  --primary-dark: #92400e;
  --primary-light: #d97706;
  --primary-400: #d97706;
  --accent: #d97706;

  --shadow-sm: 0 2px 4px rgba(28, 25, 23, 0.04);
  --shadow-md: 0 4px 8px rgba(28, 25, 23, 0.06);
  --shadow-lg: 0 8px 16px rgba(28, 25, 23, 0.08);
  --shadow-xl: 0 20px 40px rgba(28, 25, 23, 0.1);

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  --radius: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;

  --max-width: 1200px;
  --nav-height: 68px;
}

/* Section layout */
.section {
  padding: 2.5rem 2rem;
  position: relative;
  z-index: 2;
}

@media (max-width: 768px) {
  .section { padding: 2.5rem 1.5rem; }
}

@media (max-width: 480px) {
  .section { padding: 2rem 1rem; }
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-kicker {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: rgba(180, 83, 9, 0.06);
  border-radius: 2rem;
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-tertiary);
  margin-bottom: 1rem;
}

.section-title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  font-family: var(--font-display);
  margin-bottom: 1rem;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 780px;
  margin: 0 auto;
  line-height: 1.7;
}

/* Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 32px;
  background: var(--gradient-primary);
  border: none;
  border-radius: var(--radius-lg);
  color: white;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(180, 83, 9, 0.25);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(180, 83, 9, 0.35);
}

.btn-primary i {
  transition: transform 0.3s ease;
}

.btn-primary:hover i {
  transform: translateX(4px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 32px;
  background: rgba(28, 25, 23, 0.03);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  color: var(--text-primary);
  font-size: 1rem;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn-secondary:hover {
  background: rgba(28, 25, 23, 0.06);
  border-color: var(--border-accent);
  transform: translateY(-2px);
}

@media (max-width: 480px) {
  .btn-primary,
  .btn-secondary {
    padding: 14px 24px;
    font-size: 0.9375rem;
    width: 100%;
    justify-content: center;
  }
}

/* FAQ accordion */
.faq-section {
  background: linear-gradient(180deg, transparent, rgba(180, 83, 9, 0.015), transparent);
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.faq-item {
  background: rgba(255, 253, 250, 0.7);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: all 0.3s ease;
}

.faq-item:hover {
  border-color: var(--border-light);
}

.faq-item[open] {
  border-color: rgba(180, 83, 9, 0.25);
  background: rgba(255, 253, 250, 0.9);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  font-family: var(--font-display);
  color: var(--text-primary);
  cursor: pointer;
  list-style: none;
  transition: color 0.2s ease;
}

.faq-question::-webkit-details-marker {
  display: none;
}

.faq-question::after {
  content: '+';
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(180, 83, 9, 0.08);
  border-radius: 50%;
  font-size: 1.125rem;
  font-weight: 400;
  color: var(--primary);
  transition: all 0.3s ease;
  margin-left: 1rem;
}

.faq-item[open] .faq-question::after {
  content: '\2212';
  background: rgba(180, 83, 9, 0.15);
}

.faq-answer {
  padding: 0 1.5rem 1.25rem;
}

.faq-answer p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0;
}

@media (max-width: 768px) {
  .faq-question {
    padding: 1rem 1.25rem;
    font-size: 0.9375rem;
  }
  .faq-answer {
    padding: 0 1.25rem 1rem;
  }
  .faq-answer p {
    font-size: 0.875rem;
  }
}

@media (max-width: 480px) {
  .faq-question {
    padding: 0.875rem 1rem;
  }
  .faq-answer {
    padding: 0 1rem 0.875rem;
  }
  .faq-question::after {
    width: 24px;
    height: 24px;
    font-size: 1rem;
  }
}

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(250, 248, 245, 0.85);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  transition: all 0.3s ease;
}

@supports not (backdrop-filter: blur(20px)) {
  .nav {
    background: rgba(250, 248, 245, 0.98);
  }
}

.nav.scrolled {
  background: rgba(250, 248, 245, 0.95);
  border-bottom-color: var(--border-light);
}

.nav-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

@media (max-width: 480px) {
  .nav-container {
    padding: 0 1rem;
  }
  .nav-actions {
    gap: 12px;
  }
  .nav-sign-in {
    font-size: 13px;
  }
  .nav-cta {
    padding: 8px 14px;
    font-size: 13px;
  }
  .nav-cta span {
    display: none;
  }
}

.nav-logo {
  font-size: 1.65rem;
  font-weight: 700;
  font-family: var(--font-display);
  text-decoration: none;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: opacity 0.2s;
}

.nav-logo:hover {
  opacity: 0.8;
}

.nav-logo sup {
  margin-left: -3px !important;
}

.nav-logo-img {
  width: 32px;
  height: 32px;
  border-radius: 8px;
}

/* Hidden by default; responsive-improvements.css shows it at mobile breakpoints */
.nav-hamburger {
  display: none;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 20px;
}

.nav-sign-in {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.3s ease;
}

.nav-sign-in:hover {
  color: var(--primary);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: rgba(28, 25, 23, 0.04);
  border: 1px solid var(--border-light);
  border-radius: 100px;
  color: var(--primary-dark);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.3s ease;
}

.nav-cta:hover {
  background: rgba(180, 83, 9, 0.08);
  border-color: var(--border-accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(180, 83, 9, 0.12);
}

.nav-cta i {
  font-size: 12px;
  transition: transform 0.3s ease;
}

.nav-cta:hover i {
  transform: translateX(3px);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex: 1;
  justify-content: flex-end;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin-right: 1.5rem;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: 8px;
  transition: color 0.2s ease, background 0.2s ease;
}

.nav-links a:hover {
  color: var(--primary);
  background: rgba(180, 83, 9, 0.06);
}

@media (max-width: 1024px) {
  .nav-links {
    display: none;
  }
}

/* Footer */
.footer {
  background-color: var(--bg-primary, #faf8f5);
  border-top: 1px solid var(--border-subtle);
  padding: 3.5rem 2rem 0;
  position: relative;
  z-index: 2;
}

.footer-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1.5fr;
  gap: 2rem 2.5rem;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding-right: 1rem;
}

.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text-primary);
}

.footer-logo-img {
  width: 28px;
  height: 28px;
  border-radius: 6px;
}

.footer-tagline {
  color: var(--text-tertiary);
  font-size: 0.8125rem;
  line-height: 1.5;
  margin: 0;
}

.footer-col {
  display: flex;
  flex-direction: column;
}

.footer-heading {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-primary);
  margin: 0 0 0.875rem;
}

.footer-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.footer-list a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.8125rem;
  line-height: 1.4;
  transition: color 0.2s ease;
  display: inline-block;
  padding: 0.25rem 0;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.footer-list a:hover {
  color: var(--primary);
}

.footer-list-2col {
  column-count: 2;
  column-gap: 1.5rem;
}

.footer-list-2col li {
  break-inside: avoid;
}

.footer-bottom {
  max-width: var(--max-width);
  margin: 2.5rem auto 0;
  padding: 1.5rem 0;
  border-top: 1px solid var(--border-subtle);
}

.footer-copyright {
  color: var(--text-muted);
  font-size: 0.75rem;
  margin: 0;
}

@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }
  .footer-brand {
    grid-column: 1 / -1;
    padding-right: 0;
  }
  .footer-col-wide {
    grid-column: 1 / -1;
  }
  .footer-list-2col {
    column-count: 2;
    column-gap: 2rem;
  }
}

@media (max-width: 640px) {
  .footer {
    padding: 2.5rem 1.25rem 0;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 1.75rem;
  }
  .footer-brand {
    grid-column: auto;
  }
  .footer-col-wide {
    grid-column: auto;
  }
  .footer-list-2col {
    column-count: 1;
  }
  .footer-bottom {
    margin-top: 2rem;
    padding: 1.25rem 0;
  }
}