/* ==========================================================================
   Manual-LLM — Design System & Stylesheet
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CSS Custom Properties / Color Palette & Tokens
   -------------------------------------------------------------------------- */
:root {
  /* Color Palette (Dark Theme Default) */
  --bg-primary: #0b0f19;
  --bg-secondary: #111827;
  --bg-card: rgba(22, 31, 51, 0.7);
  --bg-card-hover: rgba(30, 42, 69, 0.85);
  --bg-glass: rgba(17, 24, 39, 0.75);
  --border-color: rgba(255, 255, 255, 0.1);
  --border-focus: #00f2fe;

  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  
  --accent-cyan: #00f2fe;
  --accent-blue: #4facfe;
  --accent-violet: #7928ca;
  --accent-pink: #ff0080;
  --accent-green: #10b981;
  --accent-amber: #f59e0b;

  --gradient-brand: linear-gradient(135deg, #00f2fe 0%, #4facfe 50%, #7928ca 100%);
  --gradient-card: linear-gradient(145deg, rgba(255,255,255,0.04) 0%, rgba(255,255,255,0.01) 100%);
  --gradient-glow: radial-gradient(circle at 50% -20%, rgba(0, 242, 254, 0.15), transparent 70%);

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 25px rgba(0, 242, 254, 0.25);

  --font-main: 'Inter', system-ui, -apple-system, sans-serif;
  --font-code: 'Fira Code', monospace;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light Theme Overrides */
[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-card: rgba(255, 255, 255, 0.85);
  --bg-card-hover: rgba(241, 245, 249, 0.95);
  --bg-glass: rgba(255, 255, 255, 0.85);
  --border-color: rgba(0, 0, 0, 0.1);
  --border-focus: #0284c7;

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;

  --accent-cyan: #0284c7;
  --accent-blue: #2563eb;
  --accent-violet: #7c3aed;
  --accent-pink: #db2777;

  --gradient-brand: linear-gradient(135deg, #0284c7 0%, #2563eb 50%, #7c3aed 100%);
  --gradient-card: linear-gradient(145deg, rgba(0,0,0,0.02) 0%, rgba(0,0,0,0.05) 100%);
  --gradient-glow: radial-gradient(circle at 50% -20%, rgba(2, 132, 199, 0.1), transparent 70%);

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
  --shadow-glow: 0 0 20px rgba(2, 132, 199, 0.15);
}

/* --------------------------------------------------------------------------
   2. Reset & Base Styles
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-image: var(--gradient-glow);
  background-attachment: fixed;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* --------------------------------------------------------------------------
   3. Header & Navigation Bar
   -------------------------------------------------------------------------- */
.top-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  padding: 0.75rem 1.5rem;
  transition: var(--transition-normal);
}

.nav-container {
  max-width: 1300px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text-primary);
}

.brand-icon {
  width: 40px;
  height: 40px;
  background: var(--gradient-brand);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.25rem;
  color: #fff;
  box-shadow: var(--shadow-glow);
}

.brand-title {
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-links {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 0.5rem;
}

.nav-link {
  padding: 0.6rem 1rem;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.92rem;
  transition: var(--transition-fast);
  cursor: pointer;
}

.nav-link:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.nav-link.active {
  color: #fff;
  background: var(--gradient-brand);
  box-shadow: var(--shadow-sm);
}

[data-theme="light"] .nav-link.active {
  color: #fff;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.btn-icon {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.1rem;
  transition: var(--transition-fast);
}

.btn-icon:hover {
  border-color: var(--accent-cyan);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.mobile-toggle {
  display: none;
}

/* --------------------------------------------------------------------------
   4. Hero Header Section
   -------------------------------------------------------------------------- */
.hero-header {
  padding: 3rem 1.5rem 2rem;
  text-align: center;
  max-width: 1000px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  background: rgba(0, 242, 254, 0.1);
  border: 1px solid rgba(0, 242, 254, 0.3);
  border-radius: var(--radius-full);
  color: var(--accent-cyan);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
}

.hero-title {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 1rem;
  letter-spacing: -0.03em;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 750px;
  margin: 0 auto 1.5rem;
}

/* Search Bar in Hero */
.search-box-container {
  max-width: 550px;
  margin: 0 auto;
  position: relative;
}

.search-input {
  width: 100%;
  padding: 0.9rem 1.2rem 0.9rem 3rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  color: var(--text-primary);
  font-size: 1rem;
  outline: none;
  transition: var(--transition-fast);
  backdrop-filter: blur(10px);
}

.search-input:focus {
  border-color: var(--accent-cyan);
  box-shadow: var(--shadow-glow);
}

.search-icon-inside {
  position: absolute;
  left: 1.1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 1.1rem;
  pointer-events: none;
}

/* --------------------------------------------------------------------------
   5. Main Content Area & Tabs
   -------------------------------------------------------------------------- */
.main-container {
  flex: 1;
  max-width: 1300px;
  width: 100%;
  margin: 0 auto;
  padding: 1.5rem;
}

.manual-section {
  display: none;
  animation: fadeIn 0.4s ease forwards;
}

.manual-section.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Content Layout Cards */
.content-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.card {
  background: var(--bg-card);
  background-image: var(--gradient-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  transition: var(--transition-normal);
  backdrop-filter: blur(10px);
}

.card:hover {
  border-color: rgba(0, 242, 254, 0.4);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.card-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.card-title .icon {
  color: var(--accent-cyan);
}

.card-text {
  color: var(--text-secondary);
  font-size: 0.98rem;
  line-height: 1.7;
  margin-bottom: 1rem;
}

/* Section Header styling */
.section-header {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1rem;
  margin-bottom: 2rem;
}

.section-header h2 {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-header p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-top: 0.4rem;
}

/* Lists and Highlights */
.feature-list {
  list-style: none;
  padding: 0;
  margin: 1rem 0;
}

.feature-list li {
  position: relative;
  padding-left: 1.6rem;
  margin-bottom: 0.75rem;
  color: var(--text-secondary);
}

.feature-list li::before {
  content: "▹";
  position: absolute;
  left: 0;
  color: var(--accent-cyan);
  font-weight: bold;
  font-size: 1.1rem;
}

/* Code & Prompt Snippet Box */
.code-block {
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 1.25rem;
  font-family: var(--font-code);
  font-size: 0.9rem;
  color: #e2e8f0;
  overflow-x: auto;
  position: relative;
  margin: 1rem 0;
}

[data-theme="light"] .code-block {
  background: #1e293b;
  color: #f8fafc;
}

.copy-btn {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  padding: 0.35rem 0.75rem;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-sm);
  color: #fff;
  font-size: 0.75rem;
  font-family: var(--font-main);
  cursor: pointer;
  transition: var(--transition-fast);
}

.copy-btn:hover {
  background: var(--accent-cyan);
  color: #000;
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   6. Interactive Tools Styles
   -------------------------------------------------------------------------- */
.tool-container {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  margin: 2rem 0;
  backdrop-filter: blur(12px);
}

.tool-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

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

.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-main);
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition-fast);
}

.form-control:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px rgba(0, 242, 254, 0.15);
}

textarea.form-control {
  resize: vertical;
  min-height: 120px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  background: var(--gradient-brand);
  border: none;
  border-radius: var(--radius-sm);
  color: #fff;
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

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

/* Metric Display Badges */
.metric-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 1rem;
  text-align: center;
}

.metric-value {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--accent-cyan);
}

.metric-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Transformer Concept Visual Diagram */
.transformer-diagram {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin: 1.5rem 0;
}

.diagram-node {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: var(--transition-fast);
  cursor: pointer;
}

.diagram-node:hover {
  border-color: var(--accent-cyan);
  background: rgba(0, 242, 254, 0.05);
}

.diagram-node-title {
  font-weight: 700;
  font-size: 0.95rem;
}

.diagram-node-tag {
  font-size: 0.75rem;
  padding: 0.2rem 0.6rem;
  background: rgba(121, 40, 202, 0.2);
  border-radius: var(--radius-full);
  color: var(--accent-pink);
  font-weight: 600;
}

/* Quiz Styling */
.quiz-question-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.quiz-option {
  display: block;
  width: 100%;
  text-align: left;
  padding: 0.85rem 1.25rem;
  margin-top: 0.6rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--transition-fast);
}

.quiz-option:hover {
  border-color: var(--accent-cyan);
  background: rgba(0, 242, 254, 0.05);
}

.quiz-option.correct {
  background: rgba(16, 185, 129, 0.2) !important;
  border-color: var(--accent-green) !important;
  color: #fff !important;
}

.quiz-option.incorrect {
  background: rgba(239, 68, 68, 0.2) !important;
  border-color: #ef4444 !important;
}

.quiz-feedback {
  margin-top: 0.75rem;
  font-size: 0.9rem;
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   7. Search Results Drawer / Modal
   -------------------------------------------------------------------------- */
.search-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding-top: 5rem;
}

.search-modal.active {
  display: flex;
}

.search-modal-content {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  width: 90%;
  max-width: 650px;
  max-height: 70vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

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

.search-modal-results {
  padding: 1rem;
  overflow-y: auto;
  flex: 1;
}

.search-result-item {
  padding: 0.9rem 1rem;
  border-radius: var(--radius-sm);
  margin-bottom: 0.5rem;
  background: var(--bg-card);
  cursor: pointer;
  transition: var(--transition-fast);
}

.search-result-item:hover {
  border-left: 4px solid var(--accent-cyan);
  background: var(--bg-card-hover);
}

.search-result-title {
  font-weight: 700;
  font-size: 1rem;
  color: var(--accent-cyan);
}

.search-result-snippet {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

/* --------------------------------------------------------------------------
   8. Footer & Back-to-Top Button
   -------------------------------------------------------------------------- */
.footer {
  margin-top: 3rem;
  border-top: 1px solid var(--border-color);
  background: var(--bg-glass);
  padding: 2rem 1.5rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 1rem;
  list-style: none;
}

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

.footer-links a:hover {
  color: var(--accent-cyan);
}

.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 90;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition-normal);
}

.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
}

/* --------------------------------------------------------------------------
   9. Mobile Responsiveness & Drawer
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 65px;
    left: 0;
    width: 100%;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    flex-direction: column;
    padding: 1rem;
    gap: 0.5rem;
    display: none;
    box-shadow: var(--shadow-md);
  }

  .nav-links.open {
    display: flex;
  }

  .mobile-toggle {
    display: flex;
  }
}

/* --------------------------------------------------------------------------
   10. Print Optimization (@media print)
   -------------------------------------------------------------------------- */
@media print {
  body {
    background: #fff !important;
    color: #000 !important;
  }

  .top-nav, .hero-header, .search-box-container, .btn-icon, .back-to-top, .footer, .tool-container, .quiz-question-card {
    display: none !important;
  }

  .manual-section {
    display: block !important;
    page-break-after: always;
  }

  .card {
    border: 1px solid #ccc !important;
    background: #fff !important;
    box-shadow: none !important;
    color: #000 !important;
  }

  .card-title, .section-header h2 {
    color: #000 !important;
    -webkit-text-fill-color: initial !important;
  }
}

/* --------------------------------------------------------------------------
   11. LLM Ecosystem & Catalog Styles
   -------------------------------------------------------------------------- */
.filter-wrapper {
  margin-bottom: 2rem;
  display: flex;
  justify-content: center;
}

.filter-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  background: var(--bg-card);
  padding: 0.5rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  backdrop-filter: blur(12px);
}

.filter-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-secondary);
  padding: 0.5rem 1.2rem;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition-fast);
}

.filter-btn:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.filter-btn.active {
  background: var(--gradient-brand);
  color: #ffffff;
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}

.models-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}

.model-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
}

.model-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.model-card.hidden {
  display: none !important;
}

.model-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
}

.model-brand-badge {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
}

.brand-anthropic { background: rgba(217, 119, 6, 0.2); color: #f59e0b; border: 1px solid rgba(217, 119, 6, 0.3); }
.brand-openai { background: rgba(16, 185, 129, 0.2); color: #10b981; border: 1px solid rgba(16, 185, 129, 0.3); }
.brand-google { background: rgba(66, 133, 244, 0.2); color: #4285f4; border: 1px solid rgba(66, 133, 244, 0.3); }
.brand-meta { background: rgba(6, 182, 212, 0.2); color: #06b6d4; border: 1px solid rgba(6, 182, 212, 0.3); }
.brand-qwen { background: rgba(168, 85, 247, 0.2); color: #c084fc; border: 1px solid rgba(168, 85, 247, 0.3); }
.brand-deepseek { background: rgba(0, 242, 254, 0.2); color: #00f2fe; border: 1px solid rgba(0, 242, 254, 0.3); }
.brand-mistral { background: rgba(245, 158, 11, 0.2); color: #fbbf24; border: 1px solid rgba(245, 158, 11, 0.3); }
.brand-gemma { background: rgba(59, 130, 246, 0.2); color: #60a5fa; border: 1px solid rgba(59, 130, 246, 0.3); }
.brand-cohere { background: rgba(244, 63, 94, 0.2); color: #fb7185; border: 1px solid rgba(244, 63, 94, 0.3); }
.brand-microsoft { background: rgba(14, 165, 233, 0.2); color: #38bdf8; border: 1px solid rgba(14, 165, 233, 0.3); }
.brand-amazon { background: rgba(249, 115, 22, 0.2); color: #fb923c; border: 1px solid rgba(249, 115, 22, 0.3); }

.model-access-tag {
  font-size: 0.725rem;
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-full);
  font-weight: 600;
}
.tag-api { background: rgba(0, 242, 254, 0.12); color: var(--accent-cyan); }
.tag-open { background: rgba(16, 185, 129, 0.12); color: var(--accent-green); }
.tag-hybrid { background: rgba(245, 158, 11, 0.12); color: var(--accent-amber); }

.model-name {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-primary);
}

.model-logo-icon {
  font-size: 1.1rem;
}

.model-tagline {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
  font-weight: 500;
}

.model-specs {
  background: rgba(0, 0, 0, 0.2);
  border-radius: var(--radius-sm);
  padding: 0.75rem;
  margin-bottom: 1rem;
  font-size: 0.825rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  border: 1px solid var(--border-color);
}

.spec-item {
  color: var(--text-secondary);
  line-height: 1.4;
}

.spec-label {
  color: var(--text-muted);
  font-size: 0.775rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  display: block;
}

.spec-item strong {
  color: var(--text-primary);
}

.model-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 1rem;
}

.chip {
  font-size: 0.725rem;
  padding: 0.2rem 0.5rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
}

/* Comparison Table */
.comparison-table-wrapper {
  overflow-x: auto;
  margin-top: 1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
  text-align: left;
}

.comparison-table th, .comparison-table td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border-color);
}

.comparison-table th {
  background: rgba(0, 0, 0, 0.3);
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.comparison-table tr:hover {
  background: rgba(255, 255, 255, 0.03);
}

.badge {
  font-size: 0.725rem;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  display: inline-block;
}

.badge-api { background: rgba(0, 242, 254, 0.15); color: var(--accent-cyan); }
.badge-open { background: rgba(16, 185, 129, 0.15); color: var(--accent-green); }
.badge-hybrid { background: rgba(245, 158, 11, 0.15); color: var(--accent-amber); }