:root {
  --bg: #0a0a0f;
  --bg-alt: #12121a;
  --fg: #e8e6e1;
  --fg-muted: #8a8880;
  --accent: #c8ff3c;
  --accent-dim: rgba(200, 255, 60, 0.12);
  --border: rgba(255, 255, 255, 0.08);
  --radius: 12px;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

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

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

/* Hero */
.hero {
  min-height: 90vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 120px 40px 60px;
  position: relative;
  background: 
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(200, 255, 60, 0.06), transparent),
    var(--bg);
}

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

.hero-badge {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid rgba(200, 255, 60, 0.3);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 40px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: 32px;
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 600px;
  line-height: 1.7;
}

.hero-stat-bar {
  display: flex;
  align-items: center;
  gap: 40px;
  margin-top: 80px;
  padding-top: 40px;
  border-top: 1px solid var(--border);
}

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

.stat-num {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--fg);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--fg-muted);
}

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

/* Problem */
.problem {
  padding: 140px 40px;
  background: var(--bg-alt);
}

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

.problem-label,
.approach-label,
.sectors-label {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 24px;
}

.problem h2,
.approach h2,
.sectors h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 64px;
}

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

.problem-card {
  padding: 36px 32px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.02);
  transition: border-color 0.3s;
}

.problem-card:hover {
  border-color: rgba(200, 255, 60, 0.2);
}

.problem-icon {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 20px;
}

.problem-card h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.problem-card p {
  font-size: 0.95rem;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* Approach */
.approach {
  padding: 140px 40px;
}

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

.approach-features {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.feature {
  display: flex;
  gap: 32px;
  padding: 40px 0;
  border-bottom: 1px solid var(--border);
}

.feature:first-child {
  border-top: 1px solid var(--border);
}

.feature-marker {
  width: 10px;
  height: 10px;
  min-width: 10px;
  border-radius: 50%;
  background: var(--accent);
  margin-top: 8px;
}

.feature-content h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.feature-content p {
  font-size: 0.95rem;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* Sectors */
.sectors {
  padding: 140px 40px;
  background: var(--bg-alt);
}

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

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

.sector-card {
  padding: 40px 36px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(200, 255, 60, 0.02);
  transition: background 0.3s, border-color 0.3s;
}

.sector-card:hover {
  background: rgba(200, 255, 60, 0.05);
  border-color: rgba(200, 255, 60, 0.15);
}

.sector-name {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.sector-card p {
  font-size: 0.9rem;
  color: var(--fg-muted);
  line-height: 1.6;
}

/* Closing */
.closing {
  padding: 160px 40px;
  text-align: center;
  background:
    radial-gradient(ellipse 70% 40% at 50% 100%, rgba(200, 255, 60, 0.05), transparent),
    var(--bg);
}

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

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 28px;
}

.closing-text {
  font-size: 1.1rem;
  color: var(--fg-muted);
  line-height: 1.7;
  max-width: 560px;
  margin: 0 auto;
}

/* Footer */
.site-footer {
  padding: 40px;
  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 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
}

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

/* Responsive */
@media (max-width: 768px) {
  .hero {
    padding: 80px 24px 40px;
    min-height: auto;
  }

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

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

  .problem,
  .approach,
  .sectors,
  .closing {
    padding: 80px 24px;
  }

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

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

  .feature {
    flex-direction: column;
    gap: 16px;
  }

  .feature-marker {
    margin-top: 0;
  }

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