@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

/* ==========================================================================
   1. CSS Variables & Theming
   ========================================================================== */

:root {
  /* Colors - Dark Theme (Default) */
  --bg-color: #0b0c0e;
  --surface-color: #131417;
  --card-color: #1b1d21;
  --border-color: #2b2d32;
  --hover-color: #24262b;

  /* Brand Colors */
  --primary: #f5b93d;
  --primary-hover: #ffd166;
  --primary-glow: rgba(245, 185, 61, 0.15);
  --secondary: #22d3c8;
  
  /* Status Colors */
  --success: #22c55e;
  --warning: #f59e0b;
  --error: #ef4444;
  --info: #3b82f6;
  
  /* Typography Colors */
  --text-primary: #e4e4e7;
  --text-secondary: #a1a1aa;
  --text-muted: #52525b;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.5);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.5), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 15px rgba(245, 185, 61, 0.3);
  
  /* Typography */
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  
  /* Spacing */
  --spacing-1: 0.25rem; /* 4px */
  --spacing-2: 0.5rem;  /* 8px */
  --spacing-3: 0.75rem; /* 12px */
  --spacing-4: 1rem;    /* 16px */
  --spacing-5: 1.25rem; /* 20px */
  --spacing-6: 1.5rem;  /* 24px */
  --spacing-8: 2rem;    /* 32px */
  --spacing-10: 2.5rem; /* 40px */
  --spacing-12: 3rem;   /* 48px */
  --spacing-16: 4rem;   /* 64px */
  
  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-pill: 9999px;
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Z-Index */
  --z-negative: -1;
  --z-elevate: 10;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal-backdrop: 400;
  --z-modal: 500;
  --z-popover: 600;
  --z-toast: 1000;
}

[data-theme='light'] {
  /* Colors - Light Theme */
  --bg-color: #fafafa;
  --surface-color: #ffffff;
  --card-color: #f5f5f5;
  --border-color: #e5e5e5;
  --hover-color: #eaeaea;
  
  /* Typography Colors - Light */
  --text-primary: #18181b;
  --text-secondary: #71717a;
  --text-muted: #a1a1aa;
  
  /* Shadows - Light */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-glow: 0 0 15px rgba(245, 185, 61, 0.2);
}

/* ==========================================================================
   2. Reset & Base Styles
   ========================================================================== */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-body);
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: var(--bg-color);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

::selection {
  background-color: var(--primary);
  color: #ffffff;
}

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-color);
}

::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: var(--radius-pill);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

button {
  cursor: pointer;
  font-family: inherit;
  border: none;
  background: none;
}

input, textarea, select {
  font-family: inherit;
  color: inherit;
}

ul, ol {
  list-style: none;
}

img, video {
  max-width: 100%;
  height: auto;
  display: block;
}

main {
  flex: 1;
}

/* ==========================================================================
   3. Typography
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: var(--spacing-4);
  color: var(--text-primary);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(2rem, 4vw, 3rem); letter-spacing: -0.01em; }
h3 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

.text-gradient {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: inline-block;
}

.text-sm { font-size: 0.875rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.text-xs { font-size: 0.75rem; }

.font-mono { font-family: var(--font-mono); }
.font-medium { font-weight: 500; }
.font-bold { font-weight: 700; }

.text-primary { color: var(--text-primary); }
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }
.text-brand { color: var(--primary); }

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.truncate {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.line-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.line-clamp-3 {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ==========================================================================
   4. Layout & Grid
   ========================================================================== */

.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-4);
}

.container-narrow {
  width: 100%;
  max-width: 768px;
  margin: 0 auto;
  padding: 0 var(--spacing-4);
}

.container-wide {
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 var(--spacing-4);
}

.grid {
  display: grid;
  gap: var(--spacing-6);
}

.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

.flex { display: flex; }
.flex-col { display: flex; flex-direction: column; }
.flex-row { display: flex; flex-direction: row; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-start { justify-content: flex-start; }
.justify-end { justify-content: flex-end; }
.gap-1 { gap: var(--spacing-1); }
.gap-2 { gap: var(--spacing-2); }
.gap-3 { gap: var(--spacing-3); }
.gap-4 { gap: var(--spacing-4); }
.gap-6 { gap: var(--spacing-6); }
.gap-8 { gap: var(--spacing-8); }

.section-padding {
  padding: var(--spacing-16) 0;
}

/* ==========================================================================
   5. Animations & Keyframes
   ========================================================================== */

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-25%); }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

@keyframes blob {
  0% { transform: translate(0px, 0px) scale(1); }
  33% { transform: translate(30px, -50px) scale(1.1); }
  66% { transform: translate(-20px, 20px) scale(0.9); }
  100% { transform: translate(0px, 0px) scale(1); }
}

.animate-fade-in { animation: fadeIn 0.5s ease forwards; }
.animate-slide-up { animation: slideUp 0.5s ease forwards; }
.animate-slide-down { animation: slideDown 0.5s ease forwards; }
.animate-pulse { animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite; }
.animate-spin { animation: spin 1s linear infinite; }

.skeleton {
  background: linear-gradient(90deg, var(--surface-color) 25%, var(--border-color) 50%, var(--surface-color) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}

@media (prefers-reduced-motion: reduce) {
  *, ::before, ::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ==========================================================================
   6. Navigation Bar
   ========================================================================== */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 72px;
  display: flex;
  align-items: center;
  background-color: rgba(11, 12, 14, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  z-index: var(--z-fixed);
  transition: background-color var(--transition-normal);
}

[data-theme='light'] .navbar {
  background-color: rgba(250, 250, 250, 0.8);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
}

.nav-brand img, .nav-brand svg {
  height: 32px;
  width: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--spacing-6);
}

.nav-link {
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.9375rem;
  transition: color var(--transition-fast);
  position: relative;
}

.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -24px;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--primary);
  border-radius: 2px 2px 0 0;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-4);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: var(--spacing-1);
}

/* ==========================================================================
   7. Hero Section
   ========================================================================== */

.hero {
  position: relative;
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--spacing-16) var(--spacing-4);
  overflow: hidden;
  margin-top: 72px;
}

.hero-background,
.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: var(--z-negative);
  background:
    linear-gradient(rgba(245, 185, 61, 0.05) 1px, transparent 1px) 0 0 / 42px 42px,
    linear-gradient(90deg, rgba(245, 185, 61, 0.05) 1px, transparent 1px) 0 0 / 42px 42px,
    radial-gradient(circle at 30% 20%, rgba(245, 185, 61, 0.08) 0%, transparent 55%),
    radial-gradient(circle at 75% 65%, rgba(34, 211, 200, 0.08) 0%, transparent 55%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 40%, transparent 100%);
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 40%, transparent 100%);
}

.hero-blob,
.hero-orb {
  position: absolute;
  filter: blur(80px);
  opacity: 0.35;
  border-radius: 50%;
  animation: blob 7s infinite alternate;
}

.blob-1,
.hero-orb-1 {
  top: 10%;
  left: 20%;
  width: 300px;
  height: 300px;
  background-color: var(--primary);
  animation-delay: 0s;
}

.blob-2,
.hero-orb-2 {
  bottom: 20%;
  right: 15%;
  width: 400px;
  height: 400px;
  background-color: var(--secondary);
  animation-delay: 2s;
}

.hero-orb-3 {
  top: 45%;
  left: 55%;
  width: 220px;
  height: 220px;
  background-color: var(--primary);
  opacity: 0.2;
  animation-delay: 4s;
}

.hero-content {
  position: relative;
  max-width: 800px;
  z-index: 1;
}

.hero-title {
  margin-bottom: var(--spacing-6);
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-8);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-4);
  margin-bottom: var(--spacing-12);
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: var(--spacing-8);
  border-top: 1px solid var(--border-color);
  padding-top: var(--spacing-8);
  flex-wrap: wrap;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ==========================================================================
   8. Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-2);
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
  user-select: none;
}

.btn:active {
  transform: scale(0.98);
}

.btn:disabled, .btn.disabled {
  opacity: 0.6;
  cursor: not-allowed;
  pointer-events: none;
}

/* Variants */
.btn-primary {
  background-color: var(--primary);
  color: #171310;
  padding: 0.75rem 1.5rem;
  box-shadow: 0 0 10px rgba(245, 185, 61, 0.3);
}

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

.btn-secondary {
  background-color: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  padding: 0.75rem 1.5rem;
}

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

.btn-ghost {
  background-color: transparent;
  color: var(--text-primary);
  padding: 0.75rem 1.5rem;
}

.btn-ghost:hover {
  background-color: var(--hover-color);
}

.btn-danger {
  background-color: var(--error);
  color: #ffffff;
  padding: 0.75rem 1.5rem;
}

.btn-danger:hover {
  background-color: #dc2626;
}

/* Sizes */
.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.125rem;
  border-radius: var(--radius-lg);
}

.btn-icon {
  padding: 0.5rem;
  border-radius: var(--radius-md);
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ==========================================================================
   9. Badges
   ========================================================================== */

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.125rem 0.625rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-pill);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  line-height: 1.5;
}

.badge-free {
  background-color: rgba(34, 197, 94, 0.15);
  color: var(--success);
  border: 1px solid rgba(34, 197, 94, 0.3);
}

.badge-paid {
  background-color: rgba(245, 158, 11, 0.15);
  color: var(--warning);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.badge-new {
  background-color: rgba(59, 130, 246, 0.15);
  color: var(--info);
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.badge-popular {
  background: linear-gradient(135deg, rgba(245, 185, 61, 0.2), rgba(34, 211, 200, 0.2));
  color: var(--secondary);
  border: 1px solid rgba(34, 211, 200, 0.4);
}

.badge-category {
  background-color: var(--surface-color);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  text-transform: none;
  font-weight: 500;
  letter-spacing: normal;
}

/* ==========================================================================
   10. Cards
   ========================================================================== */

.card {
  background-color: var(--card-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

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

.card-header {
  padding: var(--spacing-4) var(--spacing-5);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-body {
  padding: var(--spacing-5);
}

.card-footer {
  padding: var(--spacing-4) var(--spacing-5);
  border-top: 1px solid var(--border-color);
  background-color: rgba(0, 0, 0, 0.1);
}

.card-glass {
  background-color: rgba(26, 26, 37, 0.6);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

[data-theme='light'] .card-glass {
  background-color: rgba(245, 245, 245, 0.6);
}

.card-featured {
  position: relative;
}

.card-featured::before {
  content: '';
  position: absolute;
  top: -1px; left: -1px; right: -1px; bottom: -1px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  z-index: -1;
  border-radius: calc(var(--radius-lg) + 1px);
  opacity: 0.5;
  transition: opacity var(--transition-fast);
}

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

/* ==========================================================================
   11. Model Discovery (Search, Filters, Cards)
   ========================================================================== */

.model-discovery {
  padding: var(--spacing-8) 0;
}

.model-controls {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
  margin-bottom: var(--spacing-8);
}

.model-search {
  position: relative;
  width: 100%;
  max-width: 600px;
}

.model-search-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
}

.model-search input {
  width: 100%;
  padding: 1rem 1rem 1rem 3rem;
  border-radius: var(--radius-lg);
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  font-size: 1rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.model-search input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px var(--primary-glow);
}

.model-filters {
  display: flex;
  gap: var(--spacing-2);
  overflow-x: auto;
  padding-bottom: var(--spacing-2);
  scrollbar-width: none;
}

.model-filters::-webkit-scrollbar {
  display: none;
}

.filter-pill {
  padding: 0.5rem 1rem;
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-pill);
  font-size: 0.875rem;
  font-weight: 500;
  white-space: nowrap;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-pill:hover {
  background-color: var(--hover-color);
}

.filter-pill.active {
  background-color: var(--primary);
  color: white;
  border-color: var(--primary);
}

.model-header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-4);
}

.model-count {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.model-sort select {
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  padding: 0.5rem 2rem 0.5rem 1rem;
  border-radius: var(--radius-md);
  appearance: none;
  cursor: pointer;
  background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23a1a1aa' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 0.5rem center;
  background-size: 1em;
}

.model-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--spacing-6);
}

.model-card {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.model-card .card-body {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.model-provider-logo {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background-color: var(--surface-color);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-3);
}

.model-title-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--spacing-1);
}

.model-name {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0;
}

.model-provider {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-3);
}

.model-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-4);
  flex: 1;
}

.model-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-2);
  margin-bottom: var(--spacing-4);
}

.model-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--spacing-4);
  border-top: 1px solid var(--border-color);
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.model-meta-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-1);
}

/* ==========================================================================
   12. Chat Interface
   ========================================================================== */

.chat-layout {
  display: flex;
  height: calc(100vh - 72px);
  margin-top: 72px;
  overflow: hidden;
}

.chat-sidebar {
  width: 260px;
  background-color: var(--surface-color);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-normal);
}

.chat-sidebar-header {
  padding: var(--spacing-4);
  border-bottom: 1px solid var(--border-color);
}

.chat-history-list {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-2);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.chat-history-item {
  padding: var(--spacing-2) var(--spacing-3);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  transition: background-color var(--transition-fast);
}

.chat-history-item:hover, .chat-history-item.active {
  background-color: var(--hover-color);
}

.chat-history-icon {
  color: var(--text-muted);
}

.chat-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  position: relative;
  background-color: var(--bg-color);
}

.chat-header {
  height: 60px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--spacing-4);
  background-color: rgba(10, 10, 15, 0.9);
  backdrop-filter: blur(8px);
  z-index: var(--z-elevate);
}

[data-theme='light'] .chat-header {
  background-color: rgba(250, 250, 250, 0.9);
}

.chat-model-select {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  padding: var(--spacing-1) var(--spacing-3);
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  cursor: pointer;
  font-weight: 500;
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-6) var(--spacing-4);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-6);
}

.chat-bubble-wrapper {
  display: flex;
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  gap: var(--spacing-4);
}

.chat-bubble-wrapper.user {
  flex-direction: row-reverse;
}

.chat-avatar {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background-color: var(--surface-color);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.user .chat-avatar {
  background-color: var(--primary);
  color: white;
}

.chat-bubble {
  padding: var(--spacing-4);
  border-radius: var(--radius-lg);
  font-size: 1rem;
  line-height: 1.6;
  max-width: calc(100% - 48px);
}

.chat-bubble-user {
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  border-top-right-radius: 4px;
}

.chat-bubble-ai {
  background-color: transparent;
}

.chat-bubble-ai pre {
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  padding: var(--spacing-4);
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin: var(--spacing-4) 0;
}

.chat-bubble-ai code {
  font-family: var(--font-mono);
  font-size: 0.875rem;
}

.chat-input-container {
  padding: var(--spacing-4);
  background: linear-gradient(to top, var(--bg-color) 60%, transparent);
  position: sticky;
  bottom: 0;
}

.chat-input-wrapper {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  transition: border-color var(--transition-fast);
}

.chat-input-wrapper:focus-within {
  border-color: var(--primary);
}

.chat-input {
  width: 100%;
  min-height: 56px;
  max-height: 200px;
  padding: 1rem 3.5rem 1rem 1rem;
  background: transparent;
  border: none;
  resize: none;
  outline: none;
  font-size: 1rem;
  line-height: 1.5;
}

.chat-send-btn {
  position: absolute;
  right: 0.5rem;
  bottom: 0.5rem;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background-color: var(--primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color var(--transition-fast);
}

.chat-send-btn:hover {
  background-color: var(--primary-hover);
}

.chat-send-btn:disabled {
  background-color: var(--surface-color);
  color: var(--text-muted);
  cursor: not-allowed;
}

.chat-typing {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: var(--spacing-2) 0;
}

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

.typing-dot:nth-child(1) { animation-delay: -0.32s; }
.typing-dot:nth-child(2) { animation-delay: -0.16s; }

.chat-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  text-align: center;
  padding: var(--spacing-4);
}

.chat-empty h2 {
  margin-bottom: var(--spacing-2);
}

.chat-empty p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-8);
}

.chat-suggestions {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-4);
  max-width: 600px;
  width: 100%;
}

.suggestion-card {
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  padding: var(--spacing-4);
  border-radius: var(--radius-lg);
  cursor: pointer;
  text-align: left;
  transition: all var(--transition-fast);
}

.suggestion-card:hover {
  border-color: var(--primary);
  background-color: var(--hover-color);
}

/* ==========================================================================
   13. Model Detail Page
   ========================================================================== */

.model-detail-hero {
  padding: var(--spacing-12) 0 var(--spacing-8);
  border-bottom: 1px solid var(--border-color);
  background: linear-gradient(to bottom, rgba(245, 185, 61, 0.05), transparent);
}

.model-header-main {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-6);
  margin-bottom: var(--spacing-6);
}

.model-detail-logo {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-lg);
  background-color: var(--surface-color);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-color);
}

.model-detail-logo svg {
  width: 40px;
  height: 40px;
}

.model-detail-title h1 {
  margin-bottom: var(--spacing-1);
}

.model-detail-meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  color: var(--text-secondary);
}

.model-actions-row {
  display: flex;
  gap: var(--spacing-3);
  margin-top: var(--spacing-4);
}

.model-content-section {
  padding: var(--spacing-12) 0;
}

.model-specs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-4);
  margin-bottom: var(--spacing-12);
}

.spec-item {
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  padding: var(--spacing-4);
  border-radius: var(--radius-md);
}

.spec-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-1);
}

.spec-value {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
}

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

.capability-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  padding: var(--spacing-3);
  background-color: var(--surface-color);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.cap-icon {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.cap-true .cap-icon {
  background-color: rgba(34, 197, 94, 0.2);
  color: var(--success);
}

.cap-false {
  opacity: 0.5;
}

.cap-false .cap-icon {
  background-color: rgba(161, 161, 170, 0.2);
  color: var(--text-muted);
}

.code-block {
  background-color: #0d0d12;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin: var(--spacing-4) 0;
}

[data-theme='light'] .code-block {
  background-color: #f1f5f9;
}

.code-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-2) var(--spacing-4);
  background-color: rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid var(--border-color);
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.code-content {
  padding: var(--spacing-4);
  overflow-x: auto;
}

.code-content code {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: #e2e8f0;
}

[data-theme='light'] .code-content code {
  color: #334155;
}

/* ==========================================================================
   14. Forms & Inputs
   ========================================================================== */

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

.form-label {
  display: block;
  margin-bottom: var(--spacing-2);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-primary);
}

.input, .select, .textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 1rem;
  transition: all var(--transition-fast);
}

.input:focus, .select:focus, .textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px var(--primary-glow);
}

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

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

.switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: var(--border-color);
  transition: .4s;
  border-radius: 24px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: .4s;
  border-radius: 50%;
}

input:checked + .slider {
  background-color: var(--primary);
}

input:checked + .slider:before {
  transform: translateX(20px);
}

/* ==========================================================================
   15. Modals & Settings
   ========================================================================== */

.modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-modal-backdrop);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background-color: var(--card-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 500px;
  box-shadow: var(--shadow-lg);
  transform: scale(0.95);
  transition: transform var(--transition-normal);
  z-index: var(--z-modal);
}

.modal-overlay.active .modal-content {
  transform: scale(1);
}

.modal-header {
  padding: var(--spacing-5);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0;
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1.25rem;
  transition: color var(--transition-fast);
}

.modal-close:hover {
  color: var(--text-primary);
}

.modal-body {
  padding: var(--spacing-5);
  max-height: 70vh;
  overflow-y: auto;
}

.modal-footer {
  padding: var(--spacing-4) var(--spacing-5);
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-3);
}

.settings-group {
  margin-bottom: var(--spacing-6);
}

.settings-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-3) 0;
  border-bottom: 1px solid var(--border-color);
}

.settings-item:last-child {
  border-bottom: none;
}

.settings-label-text {
  font-weight: 500;
  color: var(--text-primary);
}

.settings-desc {
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

/* ==========================================================================
   16. Toasts & Notifications
   ========================================================================== */

.toast-container {
  position: fixed;
  bottom: var(--spacing-6);
  right: var(--spacing-6);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3);
  z-index: var(--z-toast);
}

.toast {
  min-width: 300px;
  background-color: var(--card-color);
  border-radius: var(--radius-md);
  padding: var(--spacing-4);
  box-shadow: var(--shadow-lg);
  border-left: 4px solid var(--primary);
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-3);
  animation: slideUp 0.3s ease forwards;
}

.toast-success { border-left-color: var(--success); }
.toast-error { border-left-color: var(--error); }
.toast-info { border-left-color: var(--info); }
.toast-warning { border-left-color: var(--warning); }

.toast-icon {
  margin-top: 2px;
}
.toast-success .toast-icon { color: var(--success); }
.toast-error .toast-icon { color: var(--error); }

.toast-content {
  flex: 1;
}

.toast-title {
  font-weight: 600;
  font-size: 0.9375rem;
  margin-bottom: 0.25rem;
}

.toast-message {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.toast-close {
  color: var(--text-muted);
  cursor: pointer;
}

/* ==========================================================================
   17. Footer
   ========================================================================== */

.footer {
  background-color: var(--surface-color);
  border-top: 1px solid var(--border-color);
  padding: var(--spacing-12) 0 var(--spacing-6);
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--spacing-8);
  margin-bottom: var(--spacing-12);
}

.footer-brand {
  margin-bottom: var(--spacing-4);
}

.footer-desc {
  color: var(--text-secondary);
  font-size: 0.875rem;
  max-width: 300px;
  margin-bottom: var(--spacing-6);
}

.footer-heading {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--spacing-4);
  color: var(--text-primary);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3);
}

.footer-link {
  color: var(--text-secondary);
  font-size: 0.875rem;
  transition: color var(--transition-fast);
}

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

.footer-social {
  display: flex;
  gap: var(--spacing-4);
}

.social-link {
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.social-link:hover {
  color: var(--primary);
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: var(--spacing-6);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* ==========================================================================
   18. About & 404 Pages
   ========================================================================== */

.about-hero {
  text-align: center;
  padding: var(--spacing-16) 0 var(--spacing-8);
}

.about-content {
  max-width: 800px;
  margin: 0 auto;
  font-size: 1.125rem;
  color: var(--text-secondary);
}

.about-content p {
  margin-bottom: var(--spacing-4);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-6);
  margin: var(--spacing-12) 0;
}

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

.feature-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--spacing-4);
  background-color: rgba(245, 185, 61, 0.1);
  color: var(--primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.error-page {
  min-height: calc(100vh - 72px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--spacing-4);
}

.error-code {
  font-size: 8rem;
  font-weight: 700;
  line-height: 1;
  margin-bottom: var(--spacing-4);
}

.error-title {
  font-size: 2rem;
  margin-bottom: var(--spacing-2);
}

.error-desc {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-8);
  max-width: 400px;
}

/* ==========================================================================
   19. Utility Classes
   ========================================================================== */

.mt-1 { margin-top: var(--spacing-1); }
.mt-2 { margin-top: var(--spacing-2); }
.mt-3 { margin-top: var(--spacing-3); }
.mt-4 { margin-top: var(--spacing-4); }
.mt-6 { margin-top: var(--spacing-6); }
.mt-8 { margin-top: var(--spacing-8); }
.mt-12 { margin-top: var(--spacing-12); }

.mb-1 { margin-bottom: var(--spacing-1); }
.mb-2 { margin-bottom: var(--spacing-2); }
.mb-3 { margin-bottom: var(--spacing-3); }
.mb-4 { margin-bottom: var(--spacing-4); }
.mb-6 { margin-bottom: var(--spacing-6); }
.mb-8 { margin-bottom: var(--spacing-8); }
.mb-12 { margin-bottom: var(--spacing-12); }

.p-4 { padding: var(--spacing-4); }
.p-6 { padding: var(--spacing-6); }
.p-8 { padding: var(--spacing-8); }

.hidden { display: none !important; }
.block { display: block; }
.inline-block { display: inline-block; }
.w-full { width: 100%; }
.h-full { height: 100%; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* ==========================================================================
   20. Responsive Media Queries
   ========================================================================== */

/* Tablet / Medium Devices */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .chat-sidebar {
    position: absolute;
    left: 0;
    top: 60px; /* Below chat header */
    bottom: 0;
    z-index: var(--z-sticky);
    transform: translateX(-100%);
  }
  
  .chat-sidebar.open {
    transform: translateX(0);
  }
  
  .model-header-main {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  
  .model-actions-row {
    justify-content: center;
  }
}

/* Mobile Devices */
@media (max-width: 768px) {
  .nav-links {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background-color: var(--surface-color);
    flex-direction: column;
    padding: var(--spacing-4);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
    clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
    transition: clip-path var(--transition-normal);
  }
  
  .nav-links.active {
    clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
  }
  
  .nav-toggle {
    display: block;
  }
  
  .nav-actions {
    display: none; /* Hide actions in header, move to mobile menu if needed */
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-stats {
    flex-direction: column;
    gap: var(--spacing-6);
  }
  
  .grid-cols-2, .grid-cols-3, .grid-cols-4 {
    grid-template-columns: 1fr;
  }
  
  .model-header-row {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-4);
  }
  
  .model-sort {
    width: 100%;
  }
  
  .model-sort select {
    width: 100%;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: var(--spacing-4);
    text-align: center;
  }
  
  .chat-bubble-wrapper {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .chat-bubble-wrapper.user {
    align-items: flex-end;
  }
  
  .chat-bubble {
    max-width: 90%;
  }
  
  .hide-mobile {
    display: none !important;
  }
}

/* Small Mobile Devices */
@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
  
  .hero-actions .btn {
    width: 100%;
  }
  
  .chat-suggestions {
    grid-template-columns: 1fr;
  }
}

/* Desktop Only Helpers */
@media (min-width: 769px) {
  .hide-desktop {
    display: none !important;
  }
}

/* ==========================================================================
   Model Detail Page
   ========================================================================== */

/* Breadcrumb */
.breadcrumb {
  font-size: 0.875rem;
  padding: var(--spacing-4) 0;
}

.breadcrumb a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

.breadcrumb span {
  margin: 0 0.5rem;
  color: var(--text-muted);
}

.breadcrumb .text-primary {
  font-weight: 500;
}

/* Page Header (shared) */
.page-header {
  padding: var(--spacing-16) 0 var(--spacing-8);
  text-align: center;
}

.page-header h1 {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

/* Model Hero Section */
.model-hero {
  padding-top: var(--spacing-4);
}

.model-hero-provider {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.model-hero-provider a {
  font-size: 0.9rem;
}

.model-hero h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin-bottom: 1rem;
}

.model-hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}

.model-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* Model Detail Grid (main + sidebar) */
.model-detail-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 2rem;
  align-items: start;
}

.model-detail-main {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.model-detail-sidebar {
  position: sticky;
  top: 5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.model-section h2 {
  margin-bottom: 1.25rem;
  font-size: 1.25rem;
}

/* Specs Grid */
.specs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1rem;
}

.spec-item {
  background: var(--card-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.spec-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  font-weight: 500;
}

.spec-value {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  font-family: var(--font-mono);
}

/* Capabilities Grid */
.capabilities-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 0.75rem;
}

.capability-item {
  background: var(--card-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  transition: all var(--transition-fast);
}

.capability-item.active {
  border-color: var(--success);
  background: rgba(34, 197, 94, 0.05);
}

.capability-item.active .cap-status {
  color: var(--success);
  font-weight: 700;
}

.capability-item.inactive {
  opacity: 0.5;
}

.capability-item.inactive .cap-status {
  color: var(--text-muted);
}

.cap-icon {
  font-size: 1.1rem;
}

.cap-name {
  flex: 1;
}

.cap-status {
  font-weight: 600;
  font-family: var(--font-mono);
}

/* Use Cases List */
.use-cases-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

/* Tools Grid */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
}

.tools-grid h4 {
  margin-bottom: 0.75rem;
}

.tags-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* Code Block */
.code-block {
  background: var(--card-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.code-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.code-block pre {
  margin: 0;
  padding: 1rem;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.6;
  color: var(--text-primary);
}

.code-block code {
  font-family: inherit;
  background: none;
  padding: 0;
}

/* Pricing Card */
.pricing-header {
  text-align: center;
}

.pricing-details {
  font-family: var(--font-mono);
}

/* Turkish Score */
.score-circle {
  transition: all var(--transition-fast);
}

.score-high {
  border-color: var(--success) !important;
  color: var(--success);
}

.score-mid {
  border-color: var(--warning) !important;
  color: var(--warning);
}

.score-low {
  border-color: var(--text-muted) !important;
  color: var(--text-muted);
}

/* Model Search Bar */
.model-search {
  position: relative;
  margin-bottom: 1.5rem;
}

.model-search .search-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

.model-search input {
  padding-left: 3rem;
  padding-right: 4rem;
  width: 100%;
  height: 3rem;
  font-size: 1rem;
}

.search-kbd {
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  background: var(--card-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.15rem 0.5rem;
  font-size: 0.7rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  pointer-events: none;
}

/* Model Filters Bar */
.model-filters-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.model-filters {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  padding-bottom: 0.25rem;
  scrollbar-width: none;
}

.model-filters::-webkit-scrollbar {
  display: none;
}

.filter-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-color);
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
}

.filter-pill:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-glow);
}

.filter-pill.active {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
}

.model-sort-group {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.model-count {
  font-size: 0.8rem;
  white-space: nowrap;
}

.select-sm {
  padding: 0.35rem 0.75rem;
  font-size: 0.8rem;
}

/* Model Grid */
.model-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(var(--grid-min, 300px), 1fr));
  gap: 1.5rem;
}

/* Section Header */
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  gap: 1rem;
  border-bottom: solid 1px #eee;
  padding-bottom: 0.5rem;
}

.section-header h2 {
  margin: 0;
}

/* Feature Icon */
.feature-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

/* Provider Dot */
.provider-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
}

/* FAQ Details */
details summary {
  list-style: none;
}

details summary::-webkit-details-marker {
  display: none;
}

details[open] summary {
  border-bottom: none;
}

/* Responsive for model detail */
@media (max-width: 768px) {
  .model-detail-grid {
    grid-template-columns: 1fr;
  }
  
  .model-detail-sidebar {
    position: static;
  }
  
  .specs-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .capabilities-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .model-filters-bar {
    flex-direction: column;
    align-items: stretch;
  }
  
  .model-sort-group {
    justify-content: space-between;
  }
  
  .page-header {
    padding: var(--spacing-12) 0 var(--spacing-6);
  }
  
  .page-header h1 {
    font-size: 1.5rem;
  }
}

@media (max-width: 480px) {
  .specs-grid {
    grid-template-columns: 1fr;
  }
  
  .capabilities-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   Compare Models Page
   ========================================================================== */
.compare-layout { display: flex; flex-direction: column; height: calc(100vh - 64px); overflow: hidden; }
.compare-header { padding: 1rem 0; border-bottom: 1px solid var(--border-color); background: var(--surface-color); flex-shrink: 0; }
.compare-grid { display: grid; grid-template-columns: 1fr 1fr; flex: 1; overflow: hidden; }
.compare-column { display: flex; flex-direction: column; border-right: 1px solid var(--border-color); height: 100%; }
.compare-column:last-child { border-right: none; }
.compare-col-header { padding: 1rem; border-bottom: 1px solid var(--border-color); background: var(--bg-color); display: flex; align-items: center; gap: 1rem; }
.compare-messages { flex: 1; overflow-y: auto; padding: 1.5rem; display: flex; flex-direction: column; gap: 1.5rem; background: var(--bg-color); }
.compare-input-area { padding: 1.5rem; border-top: 1px solid var(--border-color); background: var(--surface-color); flex-shrink: 0; }
.compare-input-wrapper { max-width: 1000px; margin: 0 auto; position: relative; display: flex; gap: 0.5rem; align-items: flex-end; }
.compare-input-wrapper textarea { flex: 1; min-height: 50px; max-height: 150px; border-radius: var(--radius-lg); resize: none; padding-right: 3.5rem; }
.compare-send-btn { position: absolute; right: 0.5rem; bottom: 0.5rem; }
@media (max-width: 768px) {
  .compare-grid { grid-template-columns: 1fr; overflow-y: auto; display: block; }
  .compare-column { border-right: none; border-bottom: 4px solid var(--border-color); height: 50vh; }
  .compare-layout { height: auto; min-height: calc(100vh - 64px); }
}
/* ==========================================================================
   Chat Interface (Ana Sayfa)
   ========================================================================== */
.chat-container {
  display: flex;
  height: 600px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  background: var(--surface-color);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  margin-top: 2rem;
}

.chat-sidebar {
  width: 260px;
  background: var(--bg-color);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
}

.chat-sidebar-header {
  padding: 1rem;
  border-bottom: 1px solid var(--border-color);
}

.chat-history-list {
  flex: 1;
  overflow-y: auto;
  padding: 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.chat-history-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.chat-history-item:hover, .chat-history-item.active {
  background: var(--hover-color);
  color: var(--text-primary);
}

.chat-history-item svg {
  opacity: 0.5;
}

.chat-history-item:hover svg {
  opacity: 1;
}

.chat-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.chat-header {
  padding: 1rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 1rem;
  background: var(--surface-color);
  z-index: 10;
}

.chat-model-selector {
  width: auto;
  min-width: 200px;
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* Empty State / Suggestions */
.chat-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  text-align: center;
  color: var(--text-secondary);
}

.chat-empty svg {
  margin-bottom: 1rem;
}

.chat-empty h3 {
  margin-bottom: 0.5rem;
  font-size: 1.5rem;
  color: var(--text-primary);
}

.chat-suggestions {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  margin-top: 2rem;
  max-width: 600px;
  width: 100%;
}

.chat-suggestion {
  background: var(--card-color);
  border: 1px solid var(--border-color);
  padding: 1rem;
  border-radius: var(--radius-md);
  text-align: left;
  font-size: 0.9rem;
  color: var(--text-primary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.chat-suggestion:hover {
  border-color: var(--primary);
  background: var(--hover-color);
}

/* Chat Bubbles */
.chat-bubble-wrapper {
  display: flex;
  gap: 1rem;
  max-width: 85%;
}

.chat-bubble-wrapper.user {
  margin-left: auto;
  flex-direction: row-reverse;
}

.chat-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 600;
  flex-shrink: 0;
}

.chat-avatar.ai-avatar {
  background: var(--secondary);
}

.chat-bubble {
  padding: 1rem 1.25rem;
  border-radius: var(--radius-lg);
  background: var(--card-color);
  border: 1px solid var(--border-color);
  font-size: 0.95rem;
  line-height: 1.6;
}

.chat-bubble-user .chat-bubble {
  background: var(--primary-glow);
  border-color: transparent;
}

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

.chat-bubble-content p {
  margin-bottom: 0.75rem;
}

/* Chat Input Area */
.chat-input-area {
  padding: 1rem 1.5rem;
  background: var(--surface-color);
  border-top: 1px solid var(--border-color);
}

.chat-input {
  position: relative;
  display: flex;
  align-items: flex-end;
  gap: 0.5rem;
  background: var(--bg-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 0.5rem;
}

.chat-input:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px var(--primary-glow);
}

.chat-input textarea {
  flex: 1;
  border: none;
  background: transparent;
  resize: none;
  padding: 0.5rem;
  font-size: 1rem;
  max-height: 200px;
  overflow-y: auto;
  color: var(--text-primary);
  font-family: inherit;
}

.chat-input textarea:focus {
  outline: none;
}

.chat-send-btn {
  flex-shrink: 0;
  margin-bottom: 0.25rem;
  margin-right: 0.25rem;
}

.chat-disclaimer {
  text-align: center;
  margin-top: 0.75rem;
}

@media (max-width: 768px) {
  .chat-sidebar {
    position: absolute;
    left: -100%;
    top: 0;
    bottom: 0;
    z-index: 20;
    transition: left var(--transition-normal);
  }
  
  .chat-sidebar.active {
    left: 0;
    box-shadow: var(--shadow-lg);
  }
  
  .chat-header {
    justify-content: space-between;
  }
  
  .chat-header .hide-desktop {
    display: inline-flex !important;
  }
  
  .chat-bubble-wrapper {
    max-width: 95%;
  }
  
  .chat-suggestions {
    grid-template-columns: 1fr;
  }
}
/* ==========================================================================
   Modals
   ========================================================================== */
.modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.modal.active {
  opacity: 1;
  visibility: visible;
}

.modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.modal-content {
  position: relative;
  background: var(--surface-color);
  width: 90%;
  max-width: 500px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
  transform: translateY(20px) scale(0.95);
  transition: all var(--transition-normal);
  z-index: 1001;
}

.modal.active .modal-content {
  transform: translateY(0) scale(1);
}

.modal-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h3 {
  margin: 0;
  font-size: 1.25rem;
}

.modal-body {
  padding: 1.5rem;
}

.modal-footer {
  padding: 1.25rem 1.5rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 1rem;
}

.settings-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.settings-label {
  font-weight: 500;
  font-size: 0.95rem;
}

/* ==========================================================================
   Toasts
   ========================================================================== */
#toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  pointer-events: none;
}

.toast {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  transform: translateX(100%);
  opacity: 0;
  transition: all var(--transition-normal);
  pointer-events: auto;
}

.toast.show {
  transform: translateX(0);
  opacity: 1;
}

.toast.success { border-left: 4px solid var(--success); }
.toast.error { border-left: 4px solid var(--error); }
.toast.warning { border-left: 4px solid var(--warning); }
.toast.info { border-left: 4px solid var(--primary); }

@media (max-width: 768px) {
  #toast-container {
    bottom: 1rem;
    right: 1rem;
    left: 1rem;
  }
  .toast { width: 100%; }
}
/* ==========================================================================
   Hero and Grid Updates
   ========================================================================== */
.hero > .container {
  max-width: 1440px;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 4rem;
  align-items: center;
}

@media (max-width: 992px) {
  .hero > .container {
    grid-template-columns: 1fr;
  }
}

.hero-chat-wrapper {
  background: var(--bg-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
}

.hero-chat-wrapper .chat-container {
  margin-top: 0; /* Remove top margin in hero */
  height: 550px;
}

/* Black Square Grid Layout */
.grid.square-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1.5rem;
}

.square-grid .model-card, 
.square-grid .feature-card,
.square-grid .square-card {
  aspect-ratio: 1 / 1;
  background-color: #0f1016; /* Deep dark black/grey */
  color: #fff;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  border-radius: var(--radius-lg);
  padding: 2rem;
  border: 1px solid rgba(255,255,255,0.1);
  transition: all var(--transition-normal);
}

.square-grid .model-card:hover, 
.square-grid .feature-card:hover,
.square-grid .square-card:hover {
  transform: translateY(-5px);
  border-color: var(--primary);
  box-shadow: 0 10px 20px rgba(0,0,0,0.5);
  background-color: #161821;
}

.square-grid .model-card h3,
.square-grid .feature-card h3,
.square-grid .square-card h3 {
  margin-bottom: 1rem;
  font-size: 1.25rem;
  color: #fff;
}

.square-grid .model-card p,
.square-grid .feature-card p,
.square-grid .square-card p {
  color: #a1a1aa;
  font-size: 0.9rem;
}
/* ==========================================================================
   Layout Fixes & Sidebar
   ========================================================================== */
.chat-page-layout {
  padding-top: 90px;
  height: calc(100vh - 20px);
  padding-bottom: 20px;
}

.compare-layout {
  padding-top: 90px;
  height: calc(100vh - 20px);
}

.chat-container {
  position: relative;
  overflow: hidden;
}

.chat-sidebar {
  position: absolute;
  left: -300px;
  top: 0;
  bottom: 0;
  z-index: 100;
  width: 280px;
  transition: left 0.3s ease;
  box-shadow: 4px 0 15px rgba(0,0,0,0.1);
}

.chat-sidebar.show {
  left: 0;
}

.chat-sidebar-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 99;
  display: none;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.chat-sidebar-overlay.show {
  display: block;
  opacity: 1;
}

/* ==========================================================================
   AI Agent Input (React Component Port)
   ========================================================================== */
.ai-agent-wrap {
  padding: 1rem 1.5rem;
  background: var(--surface-color);
  border-top: 1px solid var(--border-color);
}

.ai-agent-frame {
  border: 1px solid var(--border-color);
  border-radius: 1rem;
  background: var(--bg-color);
  padding: 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.ai-agent-frame:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px var(--primary-glow);
}

.ai-editor-wrap {
  padding: 0.5rem;
  position: relative;
}

.ai-field {
  min-height: 40px;
  max-height: 200px;
  overflow-y: auto;
  outline: none;
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--text-primary);
  word-break: break-word;
  white-space: pre-wrap;
}

.ai-field:empty::before {
  content: attr(data-placeholder);
  color: var(--text-secondary);
  pointer-events: none;
  position: absolute;
}

.ai-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  padding: 0 0.25rem 0.25rem 0.25rem;
}

.ai-plus-btn {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 50%;
  width: 32px;
  height: 32px;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  color: var(--text-secondary);
  transition: all 0.2s;
}

.ai-plus-btn:hover {
  color: var(--text-primary);
  background: var(--hover-color);
}

.ai-right {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.ai-enhance-btn {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 9999px;
  padding: 0.35rem 0.85rem;
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.35rem;
  transition: background 0.2s;
}

.ai-enhance-btn:hover {
  background: var(--hover-color);
}

.ai-send-btn {
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 50%;
  width: 32px;
  height: 32px;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  opacity: 0.5;
  transition: opacity 0.2s, transform 0.2s;
}

.ai-send-btn.active {
  opacity: 1;
}

.ai-send-btn.active:hover {
  transform: translateY(-2px);
}

/* ==========================================================================
   Chat Bubble Layout (User Left, Agent Right)
   ========================================================================== */
#chat-messages,
#compare-messages-a,
#compare-messages-b {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
#chat-messages {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.chat-bubble {
  display: flex;
  gap: 1rem;
  max-width: 85%;
  width: fit-content;
  border-radius: var(--radius-lg);
  padding: 1.2rem;
  box-shadow: var(--shadow-sm);
}

.bubble-body {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.chat-bubble-user {
  align-self: flex-start;
  flex-direction: row;
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  border-bottom-left-radius: 4px;
}

.chat-bubble-user .bubble-avatar {
  color: var(--text-secondary);
}

.chat-bubble-ai {
  align-self: flex-end;
  flex-direction: row-reverse;
  background-color: rgba(34, 211, 200, 0.08); /* subtle secondary/teal */
  border: 1px solid rgba(34, 211, 200, 0.2);
  border-bottom-right-radius: 4px;
}

.chat-bubble-ai .bubble-avatar {
  color: var(--secondary);
}

.chat-bubble-ai .bubble-body {
  align-items: flex-end;
}

.chat-bubble-ai .bubble-content {
  text-align: right;
}

.chat-bubble-ai .bubble-meta {
  flex-direction: row-reverse;
}

/* Sidebar Close Button */
.chat-sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}
.chat-sidebar-header .btn-primary {
  flex-grow: 1;
}

/* ==========================================================================
   AI Status Indicator (Generative Ambiance)
   ========================================================================== */
.ai-status-indicator {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  font-size: 0.85rem;
  color: var(--primary);
  animation: pulse-status 2s infinite ease-in-out;
}

.ai-spinner {
  width: 16px;
  height: 16px;
  animation: spin 1.5s linear infinite;
}

.ai-status-text {
  font-weight: 500;
  letter-spacing: 0.02em;
}

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

@keyframes pulse-status {
  0% { opacity: 0.6; }
  50% { opacity: 1; text-shadow: 0 0 8px var(--primary-glow); }
  100% { opacity: 0.6; }
}

.bubble-cost {
  font-size: 0.7rem;
  color: var(--text-muted);
  background: var(--bg-color);
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
  margin-left: 0.5rem;
  border: 1px solid var(--border-color);
}

/* ==========================================================================
   16. Roadmap / "Yakında" (SaaS-gateway teaser + vizyon.html timeline)
   ========================================================================== */

.badge-soon {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.85rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-radius: var(--radius-pill);
  background: rgba(34, 211, 200, 0.12);
  color: var(--secondary);
  border: 1px solid rgba(34, 211, 200, 0.3);
  font-family: var(--font-mono);
}

.badge-soon::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--secondary);
  box-shadow: 0 0 8px var(--secondary);
  animation: pulse-status 2s infinite ease-in-out;
}

.roadmap-teaser {
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  background:
    linear-gradient(rgba(34, 211, 200, 0.04) 1px, transparent 1px) 0 0 / 100% 42px,
    var(--surface-color);
}

.roadmap-teaser-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--spacing-12);
  align-items: center;
}

@media (max-width: 900px) {
  .roadmap-teaser-inner {
    grid-template-columns: 1fr;
  }
}

.roadmap-teaser h2 {
  font-size: 2rem;
  margin: var(--spacing-4) 0 var(--spacing-3);
}

.roadmap-teaser p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: var(--spacing-6);
}

/* Compact 3-stage strip used inside the homepage teaser */
.roadmap-strip {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.roadmap-strip-step {
  position: relative;
  display: flex;
  gap: var(--spacing-4);
  padding-bottom: var(--spacing-6);
  padding-left: var(--spacing-2);
}

.roadmap-strip-step:last-child {
  padding-bottom: 0;
}

.roadmap-strip-step::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 34px;
  bottom: 0;
  width: 1px;
  background: var(--border-color);
}

.roadmap-strip-step:last-child::before {
  display: none;
}

.roadmap-strip-dot {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  background: var(--card-color);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  z-index: 1;
}

.roadmap-strip-step.is-active .roadmap-strip-dot {
  background: var(--primary-glow);
  border-color: var(--primary);
  color: var(--primary);
}

.roadmap-strip-step.is-next .roadmap-strip-dot {
  background: rgba(34, 211, 200, 0.12);
  border-color: var(--secondary);
  color: var(--secondary);
}

.roadmap-strip-title {
  font-weight: 600;
  margin-bottom: 0.2rem;
}

.roadmap-strip-text {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
}

/* Full timeline used on vizyon.html */
.roadmap-timeline {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-8);
  margin-top: var(--spacing-12);
}

@media (max-width: 900px) {
  .roadmap-timeline {
    grid-template-columns: 1fr;
    gap: var(--spacing-6);
  }
}

.roadmap-stage {
  position: relative;
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl, var(--radius-lg));
  padding: var(--spacing-8) var(--spacing-6);
  overflow: hidden;
}

.roadmap-stage::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: var(--border-color);
}

.roadmap-stage.is-current::before {
  background: linear-gradient(90deg, var(--primary), var(--primary-hover));
}

.roadmap-stage.is-next::before {
  background: linear-gradient(90deg, var(--secondary), #67e8e0);
}

.roadmap-stage.is-future::before {
  background: linear-gradient(90deg, var(--text-muted), var(--border-color));
}

.roadmap-stage-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: var(--spacing-3);
}

.roadmap-stage.is-current .roadmap-stage-label {
  color: var(--primary);
}

.roadmap-stage.is-next .roadmap-stage-label {
  color: var(--secondary);
}

.roadmap-stage h3 {
  font-size: 1.4rem;
  margin-bottom: var(--spacing-3);
}

.roadmap-stage p {
  color: var(--text-secondary);
  line-height: 1.7;
}

.roadmap-stage ul {
  margin-top: var(--spacing-4);
  padding-left: 1.1rem;
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.9;
}