:root {
  --bg: #0a0a0a;
  --bg-elevated: #111111;
  --bg-card: #161616;
  --fg: #e8e8e8;
  --fg-muted: #888888;
  --fg-dim: #555555;
  --accent: #22c55e;
  --accent-glow: rgba(34, 197, 94, 0.15);
  --accent-dim: #16a34a;
  --border: #222222;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

* { 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;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== NAV ===== */
.nav {
  padding: 24px 0;
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

.logo {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  color: var(--fg);
  letter-spacing: -0.5px;
}

.logo-dot {
  color: var(--accent);
}

.nav-tag {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  background: var(--accent-glow);
  padding: 4px 12px;
  border-radius: 100px;
  border: 1px solid rgba(34, 197, 94, 0.2);
}

/* ===== HERO ===== */
.hero {
  padding: 120px 0 80px;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero-label {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 24px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(40px, 6vw, 72px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -2px;
  color: var(--fg);
  max-width: 800px;
  margin-bottom: 28px;
}

.hero h1 em {
  font-style: normal;
  color: var(--accent);
}

.hero-sub {
  font-size: 20px;
  color: var(--fg-muted);
  max-width: 560px;
  line-height: 1.6;
}

/* ===== STATS BAR ===== */
.stats-bar {
  padding: 60px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-family: var(--font-display);
  font-size: 42px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 14px;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ===== HOW IT WORKS ===== */
.how-it-works {
  padding: 100px 0;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 16px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  letter-spacing: -1px;
  color: var(--fg);
  margin-bottom: 60px;
  max-width: 500px;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.step {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 36px 28px;
  position: relative;
}

.step-number {
  font-family: var(--font-mono);
  font-size: 48px;
  font-weight: 700;
  color: var(--border);
  position: absolute;
  top: 20px;
  right: 24px;
  line-height: 1;
}

.step h3 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 12px;
}

.step p {
  font-size: 15px;
  color: var(--fg-muted);
  line-height: 1.6;
}

/* ===== INDUSTRIES ===== */
.industries {
  padding: 80px 0 100px;
  border-top: 1px solid var(--border);
}

.industries-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
  margin-top: 48px;
}

.industry-chip {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px 20px;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 500;
  color: var(--fg);
  transition: border-color 0.2s, background 0.2s;
}

.industry-chip:hover {
  border-color: var(--accent);
  background: var(--accent-glow);
}

.industry-chip .chip-tag {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-dim);
  margin-top: 4px;
}

/* ===== REVENUE MODEL ===== */
.revenue {
  padding: 100px 0;
  border-top: 1px solid var(--border);
}

.revenue-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.revenue-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 36px 32px;
}

.revenue-card.featured {
  border-color: var(--accent);
  background: linear-gradient(135deg, var(--bg-card) 0%, var(--accent-glow) 100%);
}

.revenue-card h3 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 8px;
}

.revenue-price {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 12px;
}

.revenue-card p {
  font-size: 15px;
  color: var(--fg-muted);
  line-height: 1.6;
}

/* ===== CLOSING ===== */
.closing {
  padding: 100px 0;
  border-top: 1px solid var(--border);
  text-align: center;
}

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 700;
  letter-spacing: -1.5px;
  color: var(--fg);
  margin-bottom: 20px;
}

.closing h2 em {
  font-style: normal;
  color: var(--accent);
}

.closing p {
  font-size: 18px;
  color: var(--fg-muted);
  max-width: 560px;
  margin: 0 auto;
}

/* ===== FOOTER ===== */
.footer {
  padding: 40px 0;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  color: var(--fg-dim);
}

.footer-note {
  font-size: 13px;
  color: var(--fg-dim);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

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

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

  .industries-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero {
    padding: 80px 0 60px;
  }

  .footer-inner {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }

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

  .stat-number {
    font-size: 32px;
  }
}