/* ==========================================================================
   DOCLING DESIGN SYSTEM & GLOBAL STYLES
   Domain: https://docling.org
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CSS Custom Properties (Theme Tokens)
   -------------------------------------------------------------------------- */
:root {
  /* Color Palette - Light Premium Theme */
  --bg-main: #ffffff;
  --bg-alt: #f8fafc;
  --bg-card: #ffffff;
  --bg-subtle: #f1f5f9;
  --bg-dark: #0f172a;
  --bg-terminal: #0f172a;

  /* Accent Colors */
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #eff6ff;
  --primary-border: #bfdbfe;
  
  --secondary: #4f46e5;
  --secondary-hover: #4338ca;
  --secondary-light: #eef2ff;

  --accent-cyan: #06b6d4;
  --accent-emerald: #10b981;
  --accent-purple: #8b5cf6;

  /* Status Colors */
  --success: #16a34a;
  --success-bg: #f0fdf4;
  --warning: #d97706;
  --warning-bg: #fffbeb;
  --error: #dc2626;
  --error-bg: #fef2f2;
  --info: #0284c7;
  --info-bg: #f0f9ff;

  /* Neutral Text & Borders */
  --text-main: #0f172a;
  --text-muted: #475569;
  --text-light: #64748b;
  --text-inverse: #f8fafc;

  --border: #e2e8f0;
  --border-subtle: #cbd5e1;
  --border-focus: #3b82f6;

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', Consolas, Monaco, "Courier New", monospace;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);

  /* Border Radius & Layout */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --max-width: 1240px;
  --header-height: 72px;
  --transition: all 0.2s ease-in-out;
}

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

html {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-main);
  background-color: var(--bg-main);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  overflow-x: hidden;
}

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

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

img, svg {
  display: block;
  max-width: 100%;
}

code, pre {
  font-family: var(--font-mono);
}

/* --------------------------------------------------------------------------
   3. Container & Layout Utilities
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 5rem 0;
}

.section-alt {
  background-color: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 3.5rem auto;
}

.section-tag {
  display: inline-block;
  padding: 0.25rem 0.85rem;
  background-color: var(--primary-light);
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.75rem;
  border: 1px solid var(--primary-border);
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  line-height: 1.25;
  color: var(--text-main);
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Ad Placement Placeholder Styling */
.ad-slot-container {
  max-width: 970px;
  margin: 2.5rem auto;
  padding: 1rem;
  background-color: var(--bg-subtle);
  border: 1px dashed var(--border-subtle);
  border-radius: var(--radius-md);
  text-align: center;
}

.ad-slot-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* --------------------------------------------------------------------------
   4. Header & Navigation Bar
   -------------------------------------------------------------------------- */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--header-height);
  background-color: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}

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

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.03em;
  white-space: nowrap;
}

.nav-brand-logo {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
}

.nav-version-badge {
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.15rem 0.45rem;
  background-color: var(--primary-light);
  color: var(--primary);
  border-radius: var(--radius-full);
  border: 1px solid var(--primary-border);
  white-space: nowrap;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.1rem;
  list-style: none;
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: var(--transition);
  white-space: nowrap;
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

/* Hamburger menu button for mobile */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  padding: 0.5rem;
  cursor: pointer;
  color: var(--text-main);
}

/* --------------------------------------------------------------------------
   5. Buttons & Badges
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--primary);
  color: #ffffff;
  box-shadow: 0 2px 4px rgba(37, 99, 235, 0.2);
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: var(--bg-main);
  color: var(--text-main);
  border-color: var(--border);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background-color: var(--bg-subtle);
  border-color: var(--border-subtle);
  color: var(--text-main);
  transform: translateY(-1px);
}

.btn-sm {
  padding: 0.4rem 0.85rem;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
}

.btn-icon {
  width: 1.25em;
  height: 1.25em;
}

/* --------------------------------------------------------------------------
   6. Terminal Window Component
   -------------------------------------------------------------------------- */
.terminal-window {
  background-color: var(--bg-terminal);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
  text-align: left;
}

.terminal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.25rem;
  background-color: rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.terminal-dots {
  display: flex;
  gap: 0.45rem;
}

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

.terminal-dot.red { background-color: #ff5f56; }
.terminal-dot.yellow { background-color: #ffbd2e; }
.terminal-dot.green { background-color: #27c93f; }

.terminal-title {
  font-size: 0.8rem;
  font-family: var(--font-mono);
  color: #94a3b8;
}

.copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 0.65rem;
  background-color: rgba(255, 255, 255, 0.1);
  color: #cbd5e1;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-sm);
  font-size: 0.775rem;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: var(--transition);
}

.copy-btn:hover {
  background-color: rgba(255, 255, 255, 0.2);
  color: #ffffff;
}

.copy-btn.copied {
  background-color: var(--success);
  color: #ffffff;
  border-color: var(--success);
}

.terminal-body {
  padding: 1.25rem 1.5rem;
  color: #f8fafc;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  line-height: 1.6;
  overflow-x: auto;
}

.terminal-line {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.prompt-symbol {
  color: #38bdf8;
  user-select: none;
}

.cmd-text { color: #f8fafc; }
.cmd-flag { color: #c084fc; }
.cmd-val { color: #4ade80; }
.cmd-comment { color: #64748b; font-style: italic; }

/* --------------------------------------------------------------------------
   7. Hero Section
   -------------------------------------------------------------------------- */
.hero {
  padding: 5rem 0 4rem 0;
  text-align: center;
  background: radial-gradient(circle at 50% 0%, rgba(37, 99, 235, 0.06) 0%, rgba(255, 255, 255, 0) 70%);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 1rem;
  background-color: var(--secondary-light);
  color: var(--secondary);
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  border: 1px solid #c7d2fe;
  margin-bottom: 1.5rem;
}

.hero-badge-pulse {
  width: 8px;
  height: 8px;
  background-color: var(--secondary);
  border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(79, 70, 229, 0.4);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(79, 70, 229, 0.4); }
  70% { box-shadow: 0 0 0 8px rgba(79, 70, 229, 0); }
  100% { box-shadow: 0 0 0 0 rgba(79, 70, 229, 0); }
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--text-main);
  max-width: 950px;
  margin: 0 auto 1.5rem auto;
}

.hero-title-gradient {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-lead {
  font-size: 1.25rem;
  color: var(--text-muted);
  max-width: 780px;
  margin: 0 auto 2.25rem auto;
  line-height: 1.6;
}

.hero-ctas {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 3rem;
}

.hero-terminal {
  max-width: 680px;
  margin: 0 auto;
}

/* --------------------------------------------------------------------------
   8. What is Docling Section
   -------------------------------------------------------------------------- */
.what-is-box {
  background-color: #ffffff;
  border: 1px solid var(--border);
  border-left: 5px solid var(--primary);
  border-radius: var(--radius-lg);
  padding: 2.25rem 2.5rem;
  box-shadow: var(--shadow-md);
  margin-top: 1rem;
}

.what-is-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.85rem;
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.what-is-desc {
  font-size: 1.1rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* --------------------------------------------------------------------------
   9. Bento Grid Features Section
   -------------------------------------------------------------------------- */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.bento-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.bento-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-border);
}

.bento-card.wide {
  grid-column: span 2;
}

.bento-icon-wrapper {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background-color: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.bento-icon-wrapper.purple {
  background-color: var(--secondary-light);
  color: var(--secondary);
}

.bento-icon-wrapper.emerald {
  background-color: #ecfdf5;
  color: var(--accent-emerald);
}

.bento-icon-wrapper.cyan {
  background-color: #ecfeff;
  color: var(--accent-cyan);
}

.bento-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.65rem;
}

.bento-desc {
  font-size: 0.975rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.bento-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: auto;
  padding-top: 1.25rem;
}

.bento-tag {
  font-size: 0.775rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  background-color: var(--bg-subtle);
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

/* --------------------------------------------------------------------------
   10. Installation & Download Section
   -------------------------------------------------------------------------- */
.install-tabs {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.tab-btn {
  padding: 0.6rem 1.25rem;
  background-color: var(--bg-main);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition);
}

.tab-btn:hover {
  border-color: var(--border-subtle);
  color: var(--text-main);
}

.tab-btn.active {
  background-color: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
  box-shadow: var(--shadow-sm);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

.install-table-wrapper {
  overflow-x: auto;
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.table th {
  background-color: var(--bg-subtle);
  padding: 1rem 1.25rem;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
}

.table td {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
  color: var(--text-main);
}

.table tr:last-child td {
  border-bottom: none;
}

.table tr:hover td {
  background-color: rgba(248, 250, 252, 0.7);
}

.inline-code {
  font-family: var(--font-mono);
  background-color: var(--bg-subtle);
  padding: 0.2rem 0.45rem;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  border: 1px solid var(--border);
  color: #0f172a;
}

/* --------------------------------------------------------------------------
   11. Comparison Table Section
   -------------------------------------------------------------------------- */
.comparison-intro {
  max-width: 850px;
  margin: 0 auto 2rem auto;
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.7;
}

.comparison-table-wrapper {
  overflow-x: auto;
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.comparison-table th.highlight {
  background-color: var(--primary-light);
  color: var(--primary);
  border-bottom: 2px solid var(--primary);
}

.comparison-table td.highlight {
  background-color: rgba(239, 246, 255, 0.4);
  font-weight: 600;
}

.check-icon {
  color: var(--success);
  width: 22px;
  height: 22px;
  margin: 0 auto;
}

.cross-icon {
  color: var(--text-light);
  width: 20px;
  height: 20px;
  margin: 0 auto;
  opacity: 0.5;
}

/* --------------------------------------------------------------------------
   12. Cheatsheet Cards Grid
   -------------------------------------------------------------------------- */
.cheatsheet-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.cheat-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
}

.cheat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

.cheat-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
}

.cheat-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 0.85rem;
}

.cheat-code-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: var(--bg-terminal);
  color: #f8fafc;
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

/* --------------------------------------------------------------------------
   13. Config Generator Section
   -------------------------------------------------------------------------- */
.config-generator-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 2.25rem;
  box-shadow: var(--shadow-lg);
}

.config-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-main);
}

.form-select, .form-input {
  padding: 0.6rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  background-color: var(--bg-main);
  color: var(--text-main);
  outline: none;
  transition: var(--transition);
}

.form-select:focus, .form-input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.toggle-group {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.4rem 0;
}

.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: #cbd5e1;
  transition: .2s;
  border-radius: 24px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: .2s;
  border-radius: 50%;
}

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

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

.config-preview-container {
  display: flex;
  flex-direction: column;
}

.preview-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 1rem;
  justify-content: flex-end;
}

/* --------------------------------------------------------------------------
   14. FAQ Accordion Section
   -------------------------------------------------------------------------- */
.faq-list {
  max-width: 850px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.faq-item[open] {
  border-color: var(--primary-border);
  box-shadow: var(--shadow-md);
}

.faq-summary {
  padding: 1.25rem 1.5rem;
  font-weight: 700;
  font-size: 1.075rem;
  color: var(--text-main);
  cursor: pointer;
  user-select: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  list-style: none;
}

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

.faq-summary::after {
  content: '+';
  font-size: 1.4rem;
  color: var(--primary);
  font-weight: 400;
  transition: var(--transition);
}

.faq-item[open] .faq-summary::after {
  content: '−';
}

.faq-body {
  padding: 0 1.5rem 1.25rem 1.5rem;
  font-size: 0.975rem;
  color: var(--text-muted);
  line-height: 1.7;
  border-top: 1px solid var(--border-subtle);
  padding-top: 1rem;
}

/* --------------------------------------------------------------------------
   15. Footer Section
   -------------------------------------------------------------------------- */
.footer {
  background-color: var(--bg-dark);
  color: #94a3b8;
  padding: 4.5rem 0 2.5rem 0;
  border-top: 1px solid #1e293b;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 3rem;
  margin-bottom: 3.5rem;
}

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

.footer-brand-title {
  font-size: 1.4rem;
  font-weight: 800;
  color: #ffffff;
}

.footer-brand-desc {
  font-size: 0.9rem;
  line-height: 1.6;
}

.footer-col-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: #ffffff;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1.25rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-link {
  color: #94a3b8;
  font-size: 0.9rem;
  transition: var(--transition);
}

.footer-link:hover {
  color: #ffffff;
}

.footer-bottom {
  border-top: 1px solid #1e293b;
  padding-top: 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1rem;
}

.footer-disclaimer {
  font-size: 0.8rem;
  color: #64748b;
  max-width: 800px;
  line-height: 1.5;
}

.footer-copyright {
  font-size: 0.85rem;
  color: #94a3b8;
}

/* --------------------------------------------------------------------------
   16. Responsive Media Queries & Mobile Optimization
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .bento-grid { grid-template-columns: 1fr 1fr; }
  .bento-card.wide { grid-column: span 2; }
  .config-generator-wrapper { grid-template-columns: 1fr; gap: 1.5rem; }
  .hero-title { font-size: 2.75rem; }
  .section { padding: 3.5rem 0; }
}

@media (max-width: 768px) {
  .navbar {
    height: 64px;
  }
  
  :root {
    --header-height: 64px;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background-color: #ffffff;
    flex-direction: column;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-xl);
    gap: 0.5rem;
    z-index: 1000;
  }

  .nav-links.active {
    display: flex;
    animation: slideDown 0.25s ease-out;
  }

  @keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
  }

  .nav-link {
    padding: 0.65rem 0;
    font-size: 1.05rem;
    min-height: 44px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--bg-subtle);
  }

  .nav-link:last-child {
    border-bottom: none;
  }

  .nav-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    min-height: 44px;
  }

  .hero {
    padding: 3rem 0 2.5rem 0;
  }

  .hero-title {
    font-size: 2.15rem;
    line-height: 1.2;
  }

  .hero-lead {
    font-size: 1.05rem;
    margin-bottom: 1.75rem;
  }

  .hero-ctas {
    flex-direction: column;
    width: 100%;
    gap: 0.75rem;
  }

  .btn {
    width: 100%;
    min-height: 48px;
    font-size: 1rem;
  }

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

  .bento-card.wide {
    grid-column: span 1;
  }

  .bento-card {
    padding: 1.5rem;
  }

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

  .install-tabs {
    gap: 0.35rem;
  }

  .tab-btn {
    padding: 0.6rem 0.85rem;
    font-size: 0.85rem;
    min-height: 44px;
  }

  .install-table-wrapper, .comparison-table-wrapper {
    -webkit-overflow-scrolling: touch;
    border-radius: var(--radius-md);
  }

  .table th, .table td {
    padding: 0.75rem 0.85rem;
    font-size: 0.85rem;
  }

  .config-generator-wrapper {
    padding: 1.25rem;
    border-radius: var(--radius-lg);
  }

  .form-select, .form-input {
    min-height: 44px;
    font-size: 0.95rem;
  }

  .faq-summary {
    padding: 1rem 1.25rem;
    font-size: 1rem;
    min-height: 48px;
  }

  .faq-body {
    padding: 0 1.25rem 1rem 1.25rem;
    font-size: 0.925rem;
  }

  .footer {
    padding: 3rem 0 2rem 0;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem 1.5rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 1rem;
  }

  .hero-title {
    font-size: 1.85rem;
  }

  .section-title {
    font-size: 1.75rem;
  }

  .what-is-box {
    padding: 1.5rem 1.25rem;
  }

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

  .terminal-body {
    padding: 1rem;
    font-size: 0.825rem;
  }
}

@media (max-width: 360px) {
  .hero-title {
    font-size: 1.65rem;
  }

  .nav-brand {
    font-size: 1.15rem;
  }
}