:root {
  --bg: #0A0F0D;
  --bg-card: #121A16;
  --bg-highlight: #1A2820;
  --fg: #E8EDE9;
  --fg-muted: #8A9A8E;
  --accent: #3DDB85;
  --accent-dim: #2BA366;
  --accent-glow: rgba(61, 219, 133, 0.15);
  --border: #1E2E24;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', 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;
  justify-content: center;
  padding: 80px 24px;
  position: relative;
  background: 
    radial-gradient(ellipse 60% 50% at 50% 0%, var(--accent-glow) 0%, transparent 70%),
    var(--bg);
}

.hero-inner {
  max-width: 800px;
  text-align: center;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--accent);
  border: 1px solid var(--accent-dim);
  border-radius: 100px;
  padding: 6px 20px;
  margin-bottom: 32px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(36px, 6vw, 64px);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 24px;
  color: var(--fg);
}

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

.lede {
  font-size: 18px;
  color: var(--fg-muted);
  max-width: 600px;
  margin: 0 auto 48px;
  line-height: 1.7;
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
}

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

.stat-number {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 700;
  color: var(--accent);
}

.stat-label {
  font-size: 13px;
  color: var(--fg-muted);
  text-align: center;
  max-width: 140px;
}

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

/* Problem */
.problem {
  padding: 120px 24px;
  background: var(--bg);
}

.problem-inner {
  max-width: 960px;
  margin: 0 auto;
}

.problem h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  margin-bottom: 56px;
  text-align: center;
}

.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: 16px;
  padding: 32px;
}

.problem-icon {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 20px;
  letter-spacing: 1px;
}

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

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

/* How */
.how {
  padding: 120px 24px;
  background: 
    radial-gradient(ellipse 40% 30% at 0% 50%, var(--accent-glow) 0%, transparent 70%),
    var(--bg);
}

.how-inner {
  max-width: 720px;
  margin: 0 auto;
}

.how-label {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--accent);
  margin-bottom: 16px;
  text-align: center;
}

.how h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 38px);
  font-weight: 700;
  margin-bottom: 64px;
  text-align: center;
}

.timeline {
  position: relative;
  padding-left: 48px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 16px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent), var(--border));
}

.timeline-item {
  position: relative;
  margin-bottom: 48px;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-marker {
  position: absolute;
  left: -48px;
  top: 0;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
}

.timeline-content h3 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 8px;
}

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

/* Features */
.features {
  padding: 120px 24px;
  background: var(--bg);
}

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

.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 24px;
}

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

.feature-block {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 36px;
}

.feature-highlight {
  background: var(--bg-highlight);
  border-color: var(--accent-dim);
}

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

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

/* Closing */
.closing {
  padding: 140px 24px;
  text-align: center;
  background:
    radial-gradient(ellipse 50% 40% at 50% 100%, var(--accent-glow) 0%, transparent 70%),
    var(--bg);
}

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

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 24px;
}

.closing-text {
  font-size: 17px;
  color: var(--fg-muted);
  line-height: 1.7;
  max-width: 560px;
  margin: 0 auto;
}

/* Footer */
.site-footer {
  padding: 48px 24px;
  border-top: 1px solid var(--border);
  text-align: center;
}

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

.footer-brand {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--fg);
  margin-bottom: 8px;
}

.footer-text {
  font-size: 14px;
  color: var(--fg-muted);
}

/* Mobile */
@media (max-width: 768px) {
  .hero {
    min-height: auto;
    padding: 60px 20px;
  }

  .hero-stats {
    flex-direction: column;
    gap: 20px;
    padding: 24px;
  }

  .stat-divider {
    width: 48px;
    height: 1px;
  }

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

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

  .problem,
  .how,
  .features {
    padding: 80px 20px;
  }

  .closing {
    padding: 100px 20px;
  }

  .timeline {
    padding-left: 40px;
  }

  .timeline-marker {
    left: -40px;
    width: 30px;
    height: 30px;
    font-size: 12px;
  }
}