:root {
  --bg: #0c0c0e;
  --bg-elevated: #141418;
  --bg-card: #1a1a20;
  --fg: #e8e6e1;
  --fg-muted: #8a8880;
  --fg-dim: #5a5850;
  --accent: #d4a843;
  --accent-glow: rgba(212, 168, 67, 0.15);
  --accent-bright: #e8be5a;
  --border: #2a2a30;
  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ── HERO ── */
.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  padding: 140px 40px 80px;
  background:
    radial-gradient(ellipse 80% 60% at 20% 80%, rgba(212, 168, 67, 0.06) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 80% 20%, rgba(212, 168, 67, 0.04) 0%, transparent 50%),
    var(--bg);
}

.hero-inner {
  max-width: 900px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--accent);
  border: 1px solid rgba(212, 168, 67, 0.3);
  padding: 6px 16px;
  border-radius: 2px;
  margin-bottom: 32px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: var(--fg);
  margin-bottom: 28px;
}

.hero h1 .accent {
  color: var(--accent);
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 640px;
  line-height: 1.65;
  margin-bottom: 56px;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 32px;
  padding-top: 40px;
  border-top: 1px solid var(--border);
}

.stat-num {
  display: block;
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--fg-dim);
  line-height: 1.4;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat-divider {
  width: 1px;
  height: 48px;
  background: var(--border);
}

/* ── PROBLEM ── */
.problem {
  padding: 120px 40px;
  background: var(--bg-elevated);
}

.problem-inner {
  max-width: 1000px;
  margin: 0 auto;
}

.problem-label,
.features-label,
.ecosystem-label {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 20px;
  text-transform: uppercase;
}

.problem h2,
.features h2,
.ecosystem h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--fg);
  margin-bottom: 56px;
}

.problem h2 em {
  font-style: italic;
  color: var(--accent);
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.problem-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 36px 28px;
}

.problem-icon {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 20px;
  opacity: 0.7;
}

.problem-card h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--fg);
}

.problem-card p {
  font-size: 0.95rem;
  color: var(--fg-muted);
  line-height: 1.6;
}

/* ── FEATURES ── */
.features {
  padding: 120px 40px;
  background: var(--bg);
}

.features-inner {
  max-width: 1000px;
  margin: 0 auto;
}

.feature-blocks {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.feature-block {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 36px 32px;
  transition: border-color 0.2s;
}

.feature-block:hover {
  border-color: rgba(212, 168, 67, 0.3);
}

.feature-large {
  background:
    linear-gradient(135deg, rgba(212, 168, 67, 0.05) 0%, transparent 60%),
    var(--bg-card);
  border-color: rgba(212, 168, 67, 0.2);
  padding: 48px 40px;
}

.feature-tag {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 16px;
  opacity: 0.8;
}

.feature-block h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 12px;
}

.feature-large h3 {
  font-size: 1.6rem;
}

.feature-block p {
  font-size: 0.95rem;
  color: var(--fg-muted);
  line-height: 1.65;
  max-width: 520px;
}

/* ── ECOSYSTEM ── */
.ecosystem {
  padding: 120px 40px;
  background: var(--bg-elevated);
}

.ecosystem-inner {
  max-width: 800px;
  margin: 0 auto;
}

.eco-flow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  margin-top: 60px;
}

.eco-node {
  text-align: center;
  padding: 32px 24px;
  max-width: 400px;
}

.eco-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent);
  margin: 0 auto 20px;
  box-shadow: 0 0 20px rgba(212, 168, 67, 0.4);
}

.dot-oem {
  background: #5a8fd4;
  box-shadow: 0 0 20px rgba(90, 143, 212, 0.4);
}

.dot-dealer {
  background: #5ad48a;
  box-shadow: 0 0 20px rgba(90, 212, 138, 0.4);
}

.eco-node h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 8px;
}

.eco-node p {
  font-size: 0.9rem;
  color: var(--fg-muted);
  line-height: 1.55;
}

.eco-connector {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  padding: 4px 0;
}

.eco-line {
  width: 1px;
  height: 24px;
  background: linear-gradient(to bottom, var(--accent), rgba(212, 168, 67, 0.2));
}

.eco-bridge-label {
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--accent);
  padding: 6px 14px;
  border: 1px solid rgba(212, 168, 67, 0.25);
  border-radius: 2px;
  text-transform: uppercase;
}

/* ── CLOSING ── */
.closing {
  padding: 140px 40px;
  background:
    radial-gradient(ellipse 70% 50% at 50% 50%, rgba(212, 168, 67, 0.06) 0%, transparent 70%),
    var(--bg);
  text-align: center;
}

.closing-inner {
  max-width: 760px;
  margin: 0 auto;
}

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--fg);
  margin-bottom: 28px;
}

.closing-sub {
  font-size: 1.05rem;
  color: var(--fg-muted);
  line-height: 1.7;
  max-width: 600px;
  margin: 0 auto;
}

/* ── FOOTER ── */
.site-footer {
  padding: 40px;
  border-top: 1px solid var(--border);
  background: var(--bg);
}

.footer-inner {
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--fg);
  letter-spacing: -0.01em;
}

.footer-tagline {
  font-size: 0.85rem;
  color: var(--fg-dim);
}

/* ── CTA BUTTONS ── */
.cta-btn {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 13px 28px;
  border-radius: 3px;
  text-decoration: none;
  transition: all 0.15s;
}

.cta-primary {
  background: var(--accent);
  color: #0c0c0e;
}

.cta-primary:hover {
  background: var(--accent-bright);
}

.cta-secondary {
  background: transparent;
  color: var(--fg);
  border: 1px solid var(--border);
}

.cta-secondary:hover {
  border-color: rgba(212,168,67,0.4);
  background: var(--accent-glow);
  color: var(--accent);
}

/* ── NAV (landing) ── */
.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 40px;
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10;
}

.site-nav-brand {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--fg);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.site-nav-links {
  display: flex;
  gap: 8px;
  align-items: center;
}

.site-nav-link {
  font-size: 0.9rem;
  color: var(--fg-muted);
  text-decoration: none;
  padding: 7px 14px;
  border-radius: 3px;
  transition: color 0.15s;
}

.site-nav-link:hover { color: var(--fg); }

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .hero {
    padding: 80px 24px 60px;
    min-height: auto;
  }

  .hero-stats {
    flex-direction: column;
    align-items: flex-start;
    gap: 24px;
  }

  .stat-divider {
    width: 40px;
    height: 1px;
  }

  .problem,
  .features,
  .ecosystem {
    padding: 80px 24px;
  }

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

  .feature-row {
    grid-template-columns: 1fr;
  }

  .feature-large {
    padding: 32px 24px;
  }

  .closing {
    padding: 80px 24px;
  }

  .footer-inner {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }

  .eco-flow {
    margin-top: 40px;
  }
}