:root {
  --bg: #0a0a0f;
  --bg-elevated: #12121a;
  --bg-card: #16161f;
  --fg: #e8e8ed;
  --fg-muted: #8888a0;
  --fg-dim: #55556a;
  --accent: #6366f1;
  --accent-bright: #818cf8;
  --accent-glow: rgba(99, 102, 241, 0.15);
  --green: #34d399;
  --border: #1e1e2e;
  --radius: 12px;
  --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: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* NAV */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 20px 0;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

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

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 18px;
  letter-spacing: -0.02em;
}

.nav-logo {
  color: var(--accent-bright);
  font-size: 20px;
}

.nav-name { color: var(--fg); }

.nav-tag {
  font-size: 13px;
  color: var(--fg-dim);
  font-family: var(--font-body);
}

/* HERO */
.hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 140px 24px 80px;
  overflow: hidden;
}

.hero-inner {
  max-width: 800px;
  text-align: center;
  position: relative;
  z-index: 2;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--accent-bright);
  background: var(--accent-glow);
  border: 1px solid rgba(99, 102, 241, 0.25);
  padding: 8px 20px;
  border-radius: 100px;
  margin-bottom: 40px;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(48px, 8vw, 80px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.04em;
  margin-bottom: 28px;
  color: var(--fg);
}

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

.hero-lede {
  font-size: 18px;
  line-height: 1.7;
  color: var(--fg-muted);
  max-width: 600px;
  margin: 0 auto 40px;
}

.hero-proof {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.proof-item {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 500;
  color: var(--fg-dim);
  letter-spacing: 0.02em;
}

.proof-dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--fg-dim);
}

.hero-gradient {
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(ellipse at center, rgba(99, 102, 241, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

/* METRICS */
.metrics {
  padding: 80px 24px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.metrics-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
}

.metric-value {
  font-family: var(--font-display);
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 700;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--fg) 0%, var(--fg-muted) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 12px;
}

.metric-label {
  font-size: 14px;
  line-height: 1.6;
  color: var(--fg-dim);
  max-width: 260px;
}

/* FEATURES */
.features {
  padding: 120px 24px;
}

.features-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.features-header {
  margin-bottom: 72px;
}

.features-header h2 {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 16px;
}

.features-sub {
  font-size: 17px;
  color: var(--fg-muted);
  max-width: 480px;
}

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

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
  transition: border-color 0.3s ease;
}

.feature-card:hover {
  border-color: rgba(99, 102, 241, 0.3);
}

.feature-icon {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  color: var(--accent-bright);
  letter-spacing: 0.05em;
  margin-bottom: 20px;
}

.feature-card h3 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.feature-card p {
  font-size: 15px;
  line-height: 1.65;
  color: var(--fg-muted);
}

/* HOW */
.how {
  padding: 120px 24px;
  background: var(--bg-elevated);
}

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

.how-header {
  margin-bottom: 72px;
}

.how-header h2 {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.how-steps {
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.how-step {
  display: flex;
  gap: 40px;
  align-items: flex-start;
}

.step-num {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 700;
  color: var(--accent-bright);
  min-width: 48px;
  opacity: 0.6;
}

.step-content h3 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.step-content p {
  font-size: 15px;
  line-height: 1.65;
  color: var(--fg-muted);
  max-width: 520px;
}

/* CLOSING */
.closing {
  padding: 120px 24px;
  text-align: center;
}

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

.closing-line {
  width: 48px;
  height: 2px;
  background: var(--accent);
  margin: 0 auto 48px;
}

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 20px;
}

.closing-sub {
  font-size: 18px;
  line-height: 1.7;
  color: var(--fg-muted);
  margin-bottom: 48px;
}

.closing-founder {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 36px;
  display: inline-block;
}

.closing-founder p {
  font-size: 14px;
  line-height: 1.65;
  color: var(--fg-dim);
  max-width: 500px;
}

/* FOOTER */
.footer {
  padding: 40px 24px;
  border-top: 1px solid var(--border);
}

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

.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 15px;
}

.footer-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--fg-dim);
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .metrics-inner {
    grid-template-columns: 1fr;
    gap: 36px;
    text-align: center;
  }
  .metric-label { margin: 0 auto; }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .how-step {
    flex-direction: column;
    gap: 16px;
  }
  .hero { min-height: 80vh; padding: 120px 20px 60px; }
  .features, .how, .closing { padding: 80px 20px; }
  .feature-card { padding: 28px; }
  .footer-inner { flex-direction: column; gap: 16px; text-align: center; }
  .hero-proof { flex-direction: column; gap: 8px; }
  .proof-dot { display: none; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 36px; }
  .features-header h2, .how-header h2, .closing h2 { font-size: 28px; }
}