/* ==============================
   CabriolabOS Landing Page
   Dark editorial with amber accents
   ============================== */

:root {
  --bg-deep: #080c14;
  --bg: #0a0f1a;
  --bg-raised: #0f1520;
  --bg-card: #111a28;
  --amber: #E8962E;
  --amber-dim: #b87820;
  --amber-glow: rgba(232, 150, 46, 0.15);
  --text-primary: #F5F0E8;
  --text-secondary: #8899b0;
  --text-muted: #4a5a70;
  --border: #1a2535;
  --border-bright: #2a3a50;
  --font-display: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg-deep);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* NAV */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 48px;
  background: linear-gradient(to bottom, rgba(8,12,20,0.95) 0%, rgba(8,12,20,0) 100%);
}

.nav-brand {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.nav-logo { color: var(--text-primary); }
.nav-os { color: var(--amber); margin-left: 2px; }

.nav-tagline {
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* HERO */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  padding: 120px 48px 80px;
  gap: 60px;
  max-width: 1400px;
  margin: 0 auto;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(232,150,46,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-media {
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-car-graphic {
  width: 100%;
  max-width: 600px;
  filter: drop-shadow(0 0 60px rgba(232,150,46,0.15));
}

.car-illustration { width: 100%; height: auto; }

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.hero-eyebrow {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--amber);
  background: var(--amber-glow);
  border: 1px solid rgba(232,150,46,0.3);
  display: inline-block;
  padding: 6px 14px;
  border-radius: 4px;
  width: fit-content;
}

.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(36px, 4vw, 56px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -1.5px;
  color: var(--text-primary);
}

.hero-sub {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 480px;
  line-height: 1.7;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 32px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  margin-top: 8px;
}

.stat { display: flex; flex-direction: column; gap: 4px; }

.stat-value {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 800;
  color: var(--amber);
  letter-spacing: -0.5px;
}

.stat-label {
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.stat-divider {
  width: 1px;
  height: 36px;
  background: var(--border);
}

/* SECTION LABELS */
.section-label {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 16px;
}

/* PHILOSOPHY */
.philosophy {
  padding: 120px 48px;
  background: var(--bg);
  border-top: 1px solid var(--border);
}

.philosophy-inner { max-width: 1200px; margin: 0 auto; }

.philosophy-heading {
  font-family: var(--font-display);
  font-size: clamp(24px, 3vw, 40px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.8px;
  max-width: 700px;
  margin-bottom: 64px;
  color: var(--text-primary);
}

.philosophy-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
}

.philosophy-card {
  background: var(--bg-card);
  padding: 40px 36px;
  border: 1px solid var(--border);
  border-left: 3px solid var(--amber);
  transition: background 0.2s;
}

.philosophy-card:hover { background: var(--bg-raised); }

.card-icon {
  width: 44px;
  height: 44px;
  background: var(--amber-glow);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.philosophy-card h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.philosophy-card p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* FEATURES */
.features {
  padding: 120px 48px;
  background: var(--bg-deep);
  border-top: 1px solid var(--border);
}

.features-header {
  max-width: 1200px;
  margin: 0 auto 64px;
}

.features-heading {
  font-family: var(--font-display);
  font-size: clamp(28px, 3vw, 44px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -1px;
  max-width: 600px;
  color: var(--text-primary);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  max-width: 1200px;
  margin: 0 auto;
}

.feature-card {
  background: var(--bg-card);
  padding: 36px 32px;
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: relative;
  transition: border-color 0.2s, background 0.2s;
}

.feature-card:hover {
  border-color: var(--amber-dim);
  background: var(--bg-raised);
}

.feature-card--large {
  grid-column: span 2;
  padding: 48px 40px;
}

.feature-icon {
  width: 48px;
  height: 48px;
  background: var(--amber-glow);
  border: 1px solid rgba(232,150,46,0.2);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 8px;
}

.feature-card h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
}

.feature-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
  max-width: 380px;
}

.feature-card--large p { max-width: 480px; }

.feature-tag {
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--amber);
  background: var(--amber-glow);
  border: 1px solid rgba(232,150,46,0.25);
  padding: 4px 10px;
  border-radius: 4px;
}

/* MISSION */
.mission {
  padding: 120px 48px;
  background: var(--bg);
  border-top: 1px solid var(--border);
}

.mission-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.mission-heading {
  font-family: var(--font-display);
  font-size: clamp(28px, 3vw, 44px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -1px;
  color: var(--text-primary);
  margin-bottom: 24px;
}

.mission-body {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 16px;
}

.mission-visual {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.mission-stat-block {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 32px 36px;
  border-left: 4px solid var(--amber);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.msb-number {
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 800;
  color: var(--amber);
  letter-spacing: -1px;
}

.msb-label {
  font-size: 13px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* CLOSING */
.closing {
  padding: 140px 48px;
  background: var(--bg-deep);
  border-top: 1px solid var(--border);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.closing::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 400px;
  background: radial-gradient(ellipse, rgba(232,150,46,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.closing-inner { max-width: 700px; margin: 0 auto; position: relative; }

.closing-heading {
  font-family: var(--font-display);
  font-size: clamp(32px, 4vw, 54px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1.5px;
  color: var(--text-primary);
  margin-bottom: 20px;
}

.closing-sub {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 48px;
}

.closing-brand {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -1px;
}

.closing-logo { color: var(--text-primary); }
.closing-os { color: var(--amber); margin-left: 2px; }

/* FOOTER */
.footer {
  padding: 32px 48px;
  border-top: 1px solid var(--border);
  background: var(--bg);
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
}

.footer-logo { color: var(--text-secondary); }
.footer-os { color: var(--amber); margin-left: 2px; }

.footer-meta {
  font-size: 13px;
  color: var(--text-muted);
}

/* MOBILE */
@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    padding: 100px 24px 60px;
    text-align: center;
  }
  .hero-content { align-items: center; }
  .hero-headline { font-size: 36px; }
  .hero-stats { justify-content: center; }
  .philosophy-grid,
  .features-grid { grid-template-columns: 1fr; }
  .feature-card--large { grid-column: span 1; }
  .mission-inner { grid-template-columns: 1fr; }
  .nav { padding: 16px 24px; }
  .nav-tagline { display: none; }
  .philosophy, .features, .mission, .closing { padding: 80px 24px; }
  .footer-inner { flex-direction: column; gap: 8px; text-align: center; }
}

@media (max-width: 480px) {
  .hero-headline { font-size: 28px; }
  .hero-stats { flex-direction: column; gap: 16px; }
  .stat-divider { display: none; }
}