/* ==========================================================================
   auto.alfredbez.de - Familienbus Kaufberatung & Entscheidungsmatrix 2026
   Design System: Modern Editorial / Precision Automotive
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CSS Custom Properties & Design Tokens
   -------------------------------------------------------------------------- */
:root {
  /* Font Families */
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* Transitions & Radii */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 350ms cubic-bezier(0.16, 1, 0.3, 1);
  --max-width: 1240px;
}

/* Dark Theme (Default) */
body[data-theme="dark"] {
  --bg-primary: #0b0f17;
  --bg-secondary: #111827;
  --bg-surface: #1a2234;
  --bg-surface-elevated: #222d42;
  --bg-surface-hover: #29354d;
  --bg-glass: rgba(17, 24, 39, 0.85);

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-medium: rgba(255, 255, 255, 0.14);
  --border-highlight: rgba(255, 255, 255, 0.22);

  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;

  --accent-gold: #fbbf24;
  --accent-gold-bg: rgba(251, 191, 36, 0.12);
  --accent-gold-border: rgba(251, 191, 36, 0.35);

  --accent-blue: #38bdf8;
  --accent-blue-bg: rgba(56, 189, 248, 0.12);
  --accent-blue-border: rgba(56, 189, 248, 0.3);

  --accent-green: #34d399;
  --accent-green-bg: rgba(52, 211, 153, 0.12);
  --accent-green-border: rgba(52, 211, 153, 0.3);

  --accent-red: #f87171;
  --accent-red-bg: rgba(248, 113, 113, 0.12);
  --accent-red-border: rgba(248, 113, 113, 0.3);

  --accent-amber: #f59e0b;
  --accent-amber-bg: rgba(245, 158, 11, 0.12);
  --accent-amber-border: rgba(245, 158, 11, 0.3);

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px -1px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 12px 30px -4px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 40px -10px rgba(56, 189, 248, 0.15);
}

/* Light Theme */
body[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #f1f5f9;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #ffffff;
  --bg-surface-hover: #f8fafc;
  --bg-glass: rgba(255, 255, 255, 0.88);

  --border-subtle: #e2e8f0;
  --border-medium: #cbd5e1;
  --border-highlight: #94a3b8;

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;

  --accent-gold: #b45309;
  --accent-gold-bg: rgba(245, 158, 11, 0.1);
  --accent-gold-border: rgba(245, 158, 11, 0.3);

  --accent-blue: #0284c7;
  --accent-blue-bg: rgba(2, 132, 199, 0.1);
  --accent-blue-border: rgba(2, 132, 199, 0.25);

  --accent-green: #059669;
  --accent-green-bg: rgba(5, 150, 105, 0.1);
  --accent-green-border: rgba(5, 150, 105, 0.25);

  --accent-red: #dc2626;
  --accent-red-bg: rgba(220, 38, 38, 0.1);
  --accent-red-border: rgba(220, 38, 38, 0.25);

  --accent-amber: #d97706;
  --accent-amber-bg: rgba(217, 119, 6, 0.1);
  --accent-amber-border: rgba(217, 119, 6, 0.25);

  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 12px -1px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 24px -4px rgba(0, 0, 0, 0.1);
  --shadow-glow: 0 0 35px -5px rgba(2, 132, 199, 0.08);
}

/* --------------------------------------------------------------------------
   2. Reset & 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-primary);
  background-color: var(--bg-primary);
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover {
  text-decoration: underline;
}

p {
  margin-bottom: 0.85rem;
}

p:last-child {
  margin-bottom: 0;
}

ul {
  list-style: none;
}

/* Utilities */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.mt-2 { margin-top: 0.5rem; }
.mt-4 { margin-top: 1.5rem; }
.hidden { display: none !important; }

.text-green { color: var(--accent-green) !important; }
.text-amber { color: var(--accent-amber) !important; }
.text-red { color: var(--accent-red) !important; }
.text-blue { color: var(--accent-blue) !important; }
.text-accent { color: var(--accent-gold) !important; }

/* --------------------------------------------------------------------------
   3. Header & Navigation
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.header-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

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

.logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--bg-surface-elevated), var(--bg-surface));
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  color: var(--accent-blue);
  box-shadow: var(--shadow-sm);
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-domain {
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.brand-subtitle {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-item {
  padding: 0.4rem 0.75rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.nav-item:hover {
  color: var(--text-primary);
  background-color: var(--bg-surface-hover);
  text-decoration: none;
}

.nav-item.highlight-nav {
  color: var(--accent-gold);
  background: var(--accent-gold-bg);
  border: 1px solid var(--accent-gold-border);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.55rem 1.1rem;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
}

.btn-sm {
  padding: 0.4rem 0.85rem;
  font-size: 0.82rem;
}

.btn-xs {
  padding: 0.25rem 0.65rem;
  font-size: 0.75rem;
}

.btn-primary {
  background: linear-gradient(135deg, #0284c7, #0369a1);
  color: #ffffff;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #0369a1, #075985);
  text-decoration: none;
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--border-medium);
}

.btn-outline:hover {
  background: var(--bg-surface-hover);
  border-color: var(--border-highlight);
  text-decoration: none;
}

.btn-icon {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

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

body[data-theme="dark"] .sun-icon { display: block; }
body[data-theme="dark"] .moon-icon { display: none; }
body[data-theme="light"] .sun-icon { display: none; }
body[data-theme="light"] .moon-icon { display: block; }

/* --------------------------------------------------------------------------
   4. Hero Section
   -------------------------------------------------------------------------- */
.hero-section {
  position: relative;
  padding: 4.5rem 0 3.5rem;
  overflow: hidden;
  background: radial-gradient(circle at 50% -20%, rgba(56, 189, 248, 0.08) 0%, transparent 60%);
  border-bottom: 1px solid var(--border-subtle);
}

.hero-bg-glow {
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  height: 300px;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.12) 0%, transparent 70%);
  pointer-events: none;
  filter: blur(50px);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.85rem;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
}

.badge-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent-green);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-green);
}

.hero-title {
  font-size: clamp(2rem, 4.5vw, 3.25rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.gradient-text {
  background: linear-gradient(135deg, var(--accent-blue) 0%, #a855f7 50%, var(--accent-gold) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.hero-description {
  font-size: 1.125rem;
  line-height: 1.65;
  color: var(--text-secondary);
  max-width: 860px;
  margin-bottom: 2.5rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.stat-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  transition: transform var(--transition-normal), border-color var(--transition-normal);
  box-shadow: var(--shadow-sm);
}

.stat-card:hover {
  transform: translateY(-2px);
  border-color: var(--border-medium);
}

.stat-card.highlight-card {
  background: linear-gradient(135deg, var(--bg-surface-elevated), var(--bg-surface));
  border-color: var(--accent-gold-border);
  box-shadow: 0 0 25px -5px rgba(251, 191, 36, 0.1);
}

.stat-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}

.stat-value {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  line-height: 1.2;
}

.stat-meta {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 0.35rem;
}

/* --------------------------------------------------------------------------
   5. Section Headers & Grids
   -------------------------------------------------------------------------- */
.section {
  padding: 5rem 0;
  border-bottom: 1px solid var(--border-subtle);
}

.section.bg-alt {
  background-color: var(--bg-secondary);
}

.section-header {
  margin-bottom: 2.5rem;
  max-width: 800px;
}

.section-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-blue);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}

.section-title {
  font-size: clamp(1.6rem, 3vw, 2.25rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
  line-height: 1.2;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.grid-2col {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}

.grid-3col {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

/* --------------------------------------------------------------------------
   6. Strategie & Cards
   -------------------------------------------------------------------------- */
.info-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.info-header {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.info-icon {
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  flex-shrink: 0;
}

.info-icon.icon-blue {
  background: var(--accent-blue-bg);
  color: var(--accent-blue);
  border: 1px solid var(--accent-blue-border);
}

.info-icon.icon-amber {
  background: var(--accent-amber-bg);
  color: var(--accent-amber);
  border: 1px solid var(--accent-amber-border);
}

.info-title {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.info-sub {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.strategy-row {
  padding: 1rem;
  background: var(--bg-surface-elevated);
  border-radius: var(--radius-md);
  margin-bottom: 0.75rem;
  border: 1px solid var(--border-subtle);
}

.strategy-row:last-child {
  margin-bottom: 0;
}

.strategy-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-sm);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.badge-tesla {
  background: rgba(56, 189, 248, 0.15);
  color: var(--accent-blue);
  border: 1px solid var(--accent-blue-border);
}

.badge-diesel {
  background: rgba(251, 191, 36, 0.15);
  color: var(--accent-gold);
  border: 1px solid var(--accent-gold-border);
}

.risk-point {
  padding: 1rem;
  background: var(--bg-surface-elevated);
  border-left: 3px solid var(--accent-amber);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin-bottom: 0.75rem;
}

.risk-point:last-child {
  margin-bottom: 0;
}

.risk-point strong {
  display: block;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

/* --------------------------------------------------------------------------
   7. Interaktiver Fahrzeug-Vergleich (Cards & Table)
   -------------------------------------------------------------------------- */
.matrix-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-lg);
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.control-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-right: 0.25rem;
}

.filter-btn {
  padding: 0.35rem 0.85rem;
  font-size: 0.8rem;
  font-weight: 600;
  font-family: var(--font-sans);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-btn:hover {
  color: var(--text-primary);
  border-color: var(--border-medium);
}

.filter-btn.active {
  background: var(--accent-blue);
  color: #ffffff;
  border-color: var(--accent-blue);
  box-shadow: 0 2px 8px rgba(2, 132, 199, 0.3);
}

.view-toggle {
  display: flex;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 2px;
}

.toggle-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.toggle-btn.active {
  background: var(--bg-surface);
  color: var(--text-primary);
  box-shadow: var(--shadow-sm);
}

/* Vehicle Cards */
.vehicle-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.75rem;
}

.vehicle-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
  position: relative;
}

.vehicle-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-medium);
  box-shadow: var(--shadow-md);
}

.vehicle-card.top-pick {
  border-color: var(--accent-gold-border);
  background: linear-gradient(180deg, var(--bg-surface-elevated) 0%, var(--bg-surface) 100%);
  box-shadow: 0 0 30px -8px rgba(251, 191, 36, 0.15);
}

.card-badge-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.badge-gold {
  background: var(--accent-gold-bg);
  color: var(--accent-gold);
  border: 1px solid var(--accent-gold-border);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
}

.badge-blue {
  background: var(--accent-blue-bg);
  color: var(--accent-blue);
  border: 1px solid var(--accent-blue-border);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
}

.badge-neutral {
  background: var(--bg-surface-hover);
  color: var(--text-secondary);
  border: 1px solid var(--border-medium);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
}

.score-pill {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-primary);
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-sm);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
}

.car-maker {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

.car-model {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.25;
  color: var(--text-primary);
}

.car-years {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.car-price {
  text-align: right;
  flex-shrink: 0;
}

.price-amount {
  display: block;
  font-size: 1.15rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--text-primary);
}

.price-sub {
  font-size: 0.72rem;
  color: var(--text-muted);
}

.card-specs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
  background: var(--bg-surface-elevated);
  padding: 0.85rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
}

.spec-item {
  display: flex;
  flex-direction: column;
}

.spec-k {
  font-size: 0.68rem;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 600;
}

.spec-v {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-primary);
}

.highlight-green {
  color: var(--accent-green) !important;
}

.highlight-red {
  color: var(--accent-red) !important;
}

.card-pros-cons {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  font-size: 0.83rem;
}

.col-heading {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.35rem;
}

.pros-col ul li, .cons-col ul li {
  position: relative;
  padding-left: 1.15rem;
  margin-bottom: 0.4rem;
  line-height: 1.45;
}

.pros-col ul li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--accent-green);
  font-weight: 700;
}

.cons-col ul li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--accent-amber);
  font-weight: 700;
}

.card-footer {
  margin-top: auto;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border-subtle);
}

.verdict-box {
  font-size: 0.8rem;
  line-height: 1.45;
  color: var(--text-secondary);
  background: var(--bg-surface-elevated);
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--accent-blue);
}

/* Comparison Table */
.table-responsive {
  overflow-x: auto;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
}

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

.comparison-table th, .comparison-table td {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-subtle);
}

.comparison-table th {
  background: var(--bg-surface-elevated);
  font-weight: 700;
  color: var(--text-primary);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.comparison-table th.highlight-col, .comparison-table td.highlight-col {
  background: var(--accent-gold-bg);
  border-left: 1px solid var(--accent-gold-border);
  border-right: 1px solid var(--accent-gold-border);
}

.comparison-table .row-label {
  font-weight: 600;
  color: var(--text-secondary);
  white-space: nowrap;
  background: var(--bg-surface-elevated);
}

.badge-success {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  background: var(--accent-green-bg);
  color: var(--accent-green);
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.78rem;
}

/* --------------------------------------------------------------------------
   8. Sitzkonfiguration (8 vs 9 Sitze Visualizer)
   -------------------------------------------------------------------------- */
.seat-visualizer-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
}

.seat-toggle-bar {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 2rem;
}

.seat-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  background: var(--bg-surface-elevated);
  border: 2px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-normal);
  text-align: center;
}

.seat-btn:hover {
  border-color: var(--border-medium);
}

.seat-btn.active {
  background: linear-gradient(180deg, var(--bg-surface-elevated), var(--bg-surface));
  border-color: var(--accent-gold);
  box-shadow: 0 0 20px -5px rgba(251, 191, 36, 0.2);
}

.seat-btn-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.seat-btn-sub {
  font-size: 0.78rem;
  color: var(--text-secondary);
  margin-top: 0.2rem;
}

.seat-diagram-wrap {
  display: flex;
  justify-content: center;
  padding: 1.5rem 0;
}

.bus-chassis {
  width: 100%;
  max-width: 580px;
  background: var(--bg-primary);
  border: 3px solid var(--border-medium);
  border-radius: 40px 40px 20px 20px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  box-shadow: inset 0 0 30px rgba(0, 0, 0, 0.4);
}

.bus-row {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.85rem;
}

.row-title {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 0.6rem;
  text-align: center;
}

.seats-flex {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
}

.seat-box {
  flex: 1;
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  padding: 0.75rem 0.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: 68px;
  transition: all var(--transition-fast);
}

.driver-seat {
  border-color: var(--accent-blue-border);
  background: var(--accent-blue-bg);
}

.passenger-seat {
  border-color: var(--accent-gold-border);
  background: var(--accent-gold-bg);
}

.aisle-box {
  flex: 1;
  border: 2px dashed var(--accent-green-border);
  background: var(--accent-green-bg);
  border-radius: var(--radius-md);
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem;
  text-align: center;
}

.aisle-label {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--accent-green);
  line-height: 1.2;
}

.double-seat {
  flex: 2 !important;
  background: var(--accent-amber-bg) !important;
  border-color: var(--accent-amber-border) !important;
}

.seat-label {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-primary);
}

.seat-desc {
  font-size: 0.68rem;
  color: var(--text-secondary);
  margin-top: 0.15rem;
}

.isofix-tag {
  font-size: 0.62rem;
  font-weight: 700;
  padding: 0.1rem 0.4rem;
  background: var(--accent-blue-bg);
  color: var(--accent-blue);
  border-radius: var(--radius-sm);
  margin-top: 0.3rem;
}

.easy-tag {
  font-size: 0.62rem;
  font-weight: 700;
  padding: 0.1rem 0.4rem;
  background: var(--bg-surface-hover);
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  margin-top: 0.3rem;
}

.row-trunk {
  background: var(--bg-surface);
  border: 1px dashed var(--border-medium);
  padding: 1.25rem;
  text-align: center;
}

.trunk-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.seat-detail-card {
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
}

.seat-detail-card.card-green {
  border-top: 3px solid var(--accent-green);
}

.seat-detail-card.card-amber {
  border-top: 3px solid var(--accent-amber);
}

.check-list li, .cross-list li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.65rem;
  font-size: 0.88rem;
  line-height: 1.5;
}

.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--accent-green);
  font-weight: 700;
}

.cross-list li::before {
  content: "✕";
  position: absolute;
  left: 0;
  color: var(--accent-red);
  font-weight: 700;
}

/* --------------------------------------------------------------------------
   9. Technik Deep-Dive Tabs
   -------------------------------------------------------------------------- */
.tabs-container {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.tabs-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 0.75rem;
}

.tab-btn {
  padding: 0.65rem 1.2rem;
  font-family: var(--font-sans);
  font-size: 0.88rem;
  font-weight: 600;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tab-btn:hover {
  color: var(--text-primary);
  border-color: var(--border-medium);
}

.tab-btn.active {
  background: var(--bg-surface-elevated);
  color: var(--accent-blue);
  border-color: var(--accent-blue);
  box-shadow: var(--shadow-sm);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
  animation: fadeIn 200ms ease-out forwards;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.tech-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  box-shadow: var(--shadow-sm);
}

.tech-box.highlight-box {
  border-color: var(--accent-gold-border);
  background: linear-gradient(180deg, var(--bg-surface-elevated), var(--bg-surface));
}

.tech-box.danger-box {
  border-color: var(--accent-red-border);
  background: rgba(248, 113, 113, 0.03);
}

.tech-box-header h3 {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0.4rem 0 0.15rem;
}

.engine-badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
}

.badge-danger {
  background: var(--accent-red-bg);
  color: var(--accent-red);
  border: 1px solid var(--accent-red-border);
}

.badge-green {
  background: var(--accent-green-bg);
  color: var(--accent-green);
  border: 1px solid var(--accent-green-border);
}

.tech-years {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.tech-highlight {
  font-size: 0.85rem;
  padding: 0.75rem;
  background: var(--bg-surface-elevated);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--border-highlight);
  margin-bottom: 0.75rem;
}

.tech-box ul li {
  position: relative;
  padding-left: 1.25rem;
  margin-bottom: 0.45rem;
  font-size: 0.84rem;
  line-height: 1.5;
}

.tech-box ul li::before {
  content: "•";
  position: absolute;
  left: 0.35rem;
  color: var(--text-muted);
}

/* AdBlue Guide */
.adblue-guide {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 2rem;
}

.adblue-alert {
  display: flex;
  gap: 1rem;
  padding: 1.25rem;
  background: var(--accent-blue-bg);
  border: 1px solid var(--accent-blue-border);
  border-radius: var(--radius-lg);
}

.adblue-alert h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
  color: var(--accent-blue);
}

.card-inner {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
}

.card-inner h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.card-inner ul li {
  position: relative;
  padding-left: 1.25rem;
  margin-bottom: 0.5rem;
  font-size: 0.86rem;
}

.card-inner ul li::before {
  content: "•";
  position: absolute;
  left: 0.3rem;
  color: var(--accent-blue);
}

.adblue-warning {
  padding: 1.25rem;
  background: var(--accent-red-bg);
  border: 1px solid var(--accent-red-border);
  border-radius: var(--radius-lg);
  font-size: 0.88rem;
}

.adblue-warning strong {
  color: var(--accent-red);
}

/* --------------------------------------------------------------------------
   10. Ausstattungs-Matrix
   -------------------------------------------------------------------------- */
.equipment-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.equip-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-subtle);
}

.equip-header h3 {
  font-size: 1.15rem;
  font-weight: 700;
}

.header-green {
  background: var(--accent-green-bg);
  color: var(--accent-green);
  border-color: var(--accent-green-border);
}

.header-red {
  background: var(--accent-red-bg);
  color: var(--accent-red);
  border-color: var(--accent-red-border);
}

.equip-list {
  padding: 1.25rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
}

.equip-item {
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 0.85rem;
}

.equip-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.equip-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.2rem;
}

.equip-desc {
  font-size: 0.83rem;
  color: var(--text-secondary);
  line-height: 1.45;
}

.expert-tip-box {
  background: var(--bg-surface);
  border: 1px solid var(--accent-gold-border);
  border-radius: var(--radius-xl);
  padding: 1.75rem;
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  box-shadow: 0 0 25px -8px rgba(251, 191, 36, 0.15);
}

.tip-icon {
  color: var(--accent-gold);
  flex-shrink: 0;
}

.tip-content h4 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent-gold);
  margin-bottom: 0.4rem;
}

.tip-content p {
  font-size: 0.9rem;
  line-height: 1.55;
  color: var(--text-secondary);
}

/* --------------------------------------------------------------------------
   11. Interaktive Probefahrt-Checkliste
   -------------------------------------------------------------------------- */
.checklist-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
}

.checklist-progress-bar-wrap {
  margin-bottom: 1.5rem;
}

.progress-info {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.progress-percent {
  font-family: var(--font-mono);
  color: var(--accent-blue);
}

.progress-track {
  width: 100%;
  height: 10px;
  background: var(--bg-surface-elevated);
  border-radius: var(--radius-full);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-green));
  transition: width 300ms ease;
}

.checklist-actions {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.75rem;
  flex-wrap: wrap;
}

.checklist-items {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.check-row {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.15rem;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-fast);
  user-select: none;
}

.check-row:hover {
  background: var(--bg-surface-hover);
  border-color: var(--border-medium);
}

.chk-input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.custom-checkbox {
  width: 22px;
  height: 22px;
  border: 2px solid var(--border-medium);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
  transition: all var(--transition-fast);
  background: var(--bg-surface);
}

.chk-input:checked + .custom-checkbox {
  background: var(--accent-green);
  border-color: var(--accent-green);
}

.chk-input:checked + .custom-checkbox::after {
  content: "";
  width: 6px;
  height: 11px;
  border: solid #ffffff;
  border-width: 0 2.5px 2.5px 0;
  transform: rotate(45deg);
  margin-bottom: 2px;
}

.check-row.checked-item {
  opacity: 0.7;
  background: rgba(52, 211, 153, 0.05);
  border-color: var(--accent-green-border);
}

.check-row.checked-item .check-title {
  text-decoration: line-through;
  color: var(--accent-green);
}

.check-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.check-desc {
  font-size: 0.84rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* --------------------------------------------------------------------------
   12. TCO- & Kostenrechner
   -------------------------------------------------------------------------- */
.tco-calculator-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
}

.calc-box-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
}

.input-group {
  margin-bottom: 1.35rem;
}

.label-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
}

.val-display {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--accent-blue);
}

input[type="range"] {
  width: 100%;
  height: 6px;
  background: var(--bg-surface-elevated);
  border-radius: var(--radius-full);
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent-blue);
  cursor: pointer;
  border: 2px solid #ffffff;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
  transition: transform var(--transition-fast);
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.15);
}

.preset-buttons {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-subtle);
}

.preset-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
}

.btn-chip {
  padding: 0.3rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-chip:hover {
  color: var(--text-primary);
  border-color: var(--border-medium);
}

.btn-chip.active {
  background: var(--accent-gold-bg);
  border-color: var(--accent-gold-border);
  color: var(--accent-gold);
}

.calc-results {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
}

.tco-main-metric {
  text-align: center;
  padding: 1.25rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  margin-bottom: 1.5rem;
}

.metric-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.metric-value {
  font-size: 2.25rem;
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--accent-green);
  margin: 0.35rem 0 0.15rem;
}

.metric-value .unit {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.metric-sub {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.cost-breakdown-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  font-size: 0.85rem;
}

.breakdown-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-secondary);
}

.b-val {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--text-primary);
}

.breakdown-total {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 0.85rem;
  margin-top: 0.5rem;
  border-top: 2px solid var(--border-medium);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
}

.bt-val {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  color: var(--accent-blue);
}

/* --------------------------------------------------------------------------
   13. Footer
   -------------------------------------------------------------------------- */
.site-footer {
  padding: 3rem 0;
  background: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  margin-top: auto;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer-logo {
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
}

.footer-meta {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.back-to-top {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 0.4rem 0.8rem;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
}

.back-to-top:hover {
  color: var(--text-primary);
  text-decoration: none;
  border-color: var(--border-medium);
}

/* --------------------------------------------------------------------------
   14. Print Stylesheet (@media print)
   -------------------------------------------------------------------------- */
@media print {
  body {
    background: #ffffff !important;
    color: #000000 !important;
    font-size: 11pt;
  }

  .site-header, .hero-section, .matrix-controls, .tabs-nav, .checklist-actions,
  #theme-toggle, .print-btn, .site-footer, .back-to-top {
    display: none !important;
  }

  .section {
    padding: 1.5rem 0 !important;
    page-break-inside: avoid;
    border-bottom: 1px solid #ccc !important;
  }

  .checklist-card, .vehicle-card, .info-card {
    background: #ffffff !important;
    border: 1px solid #999 !important;
    color: #000000 !important;
    box-shadow: none !important;
  }

  .check-row {
    background: #fafafa !important;
    border: 1px solid #ccc !important;
    color: #000 !important;
    page-break-inside: avoid;
  }

  .custom-checkbox {
    border-color: #000 !important;
  }
}

/* --------------------------------------------------------------------------
   15. Responsive Breakpoints
   -------------------------------------------------------------------------- */
@media (max-width: 900px) {
  .nav-links {
    display: none; /* Hide top nav links on smaller screens */
  }

  .seat-toggle-bar {
    grid-template-columns: 1fr;
  }

  .seats-flex {
    flex-wrap: wrap;
  }
}

@media (max-width: 640px) {
  .hero-section {
    padding: 3rem 0 2rem;
  }

  .section {
    padding: 3.5rem 0;
  }

  .checklist-card, .seat-visualizer-card, .tco-calculator-card {
    padding: 1.25rem;
  }

  .grid-2col, .grid-3col {
    grid-template-columns: 1fr;
  }
}