:root {
  --bg-primary: #0a0f1a;
  --bg-secondary: #111827;
  --bg-card: #1a2234;
  --fg-primary: #f0f4f8;
  --fg-secondary: #94a3b8;
  --fg-muted: #64748b;
  --accent: #3b82f6;
  --accent-glow: rgba(59, 130, 246, 0.15);
  --accent-bright: #60a5fa;
  --gradient-start: #3b82f6;
  --gradient-end: #06b6d4;
  --border: rgba(148, 163, 184, 0.1);
  --radius: 12px;
  --max-width: 1100px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg-primary);
  color: var(--fg-primary);
  font-family: 'DM Sans', system-ui, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: 'Space Grotesk', system-ui, sans-serif;
  font-weight: 700;
  line-height: 1.15;
}

/* ── HERO ── */
.hero {
  min-height: 90vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 80px 24px 60px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -40%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}

.hero-badge {
  display: inline-block;
  font-family: 'Space Grotesk', monospace;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--accent-bright);
  background: var(--accent-glow);
  border: 1px solid rgba(59, 130, 246, 0.2);
  padding: 8px 20px;
  border-radius: 100px;
  margin-bottom: 32px;
  position: relative;
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  max-width: 800px;
  margin-bottom: 24px;
  letter-spacing: -0.03em;
}

.hero h1 .highlight {
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.lede {
  font-size: 1.15rem;
  color: var(--fg-secondary);
  max-width: 600px;
  margin-bottom: 48px;
  line-height: 1.7;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 32px;
  padding: 24px 40px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.stat { text-align: center; }

.stat-number {
  display: block;
  font-family: 'Space Grotesk', monospace;
  font-size: 1.8rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
}

/* ── PROBLEM ── */
.problem {
  padding: 100px 24px;
  background: var(--bg-secondary);
}

.problem-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.problem h2 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  margin-bottom: 56px;
  text-align: center;
  letter-spacing: -0.02em;
}

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

.problem-card {
  padding: 36px 28px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.3s;
}

.problem-card:hover {
  border-color: rgba(59, 130, 246, 0.3);
}

.problem-icon {
  font-family: 'Space Grotesk', monospace;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent-bright);
  margin-bottom: 16px;
  opacity: 0.7;
}

.problem-card h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
}

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

/* ── FEATURES ── */
.features {
  padding: 100px 24px;
}

.features-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.features-header {
  margin-bottom: 64px;
}

.section-tag {
  display: inline-block;
  font-family: 'Space Grotesk', monospace;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--accent-bright);
  margin-bottom: 16px;
}

.features-header h2 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  letter-spacing: -0.02em;
}

.feature-blocks {
  display: flex;
  flex-direction: column;
  gap: 0;
}

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

.feature-block:last-child {
  border-bottom: none;
}

.feature-number {
  font-family: 'Space Grotesk', monospace;
  font-size: 3rem;
  font-weight: 700;
  color: var(--bg-card);
  -webkit-text-stroke: 1px var(--fg-muted);
  min-width: 80px;
  line-height: 1;
}

.feature-content h3 {
  font-size: 1.3rem;
  margin-bottom: 12px;
}

.feature-content p {
  color: var(--fg-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  max-width: 600px;
}

/* ── PROOF ── */
.proof {
  padding: 100px 24px;
  background: var(--bg-secondary);
}

.proof-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.proof-quote {
  position: relative;
  padding: 48px;
  background: var(--bg-card);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  margin-bottom: 48px;
}

.quote-mark {
  font-size: 4rem;
  font-family: Georgia, serif;
  color: var(--accent);
  opacity: 0.4;
  position: absolute;
  top: 16px;
  left: 20px;
  line-height: 1;
}

.proof-quote p {
  font-size: 1.15rem;
  color: var(--fg-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
  padding-left: 24px;
}

.proof-quote strong {
  color: var(--fg-primary);
}

.quote-source {
  font-size: 0.85rem;
  color: var(--fg-muted);
  font-weight: 500;
  padding-left: 24px;
}

.proof-stat-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.proof-stat {
  padding: 36px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-align: center;
}

.proof-stat-value {
  font-family: 'Space Grotesk', monospace;
  font-size: 3.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 12px;
}

.proof-stat-desc {
  color: var(--fg-secondary);
  font-size: 0.95rem;
  line-height: 1.5;
}

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

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

.closing h2 {
  font-size: clamp(2rem, 4.5vw, 3rem);
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.closing-text {
  font-size: 1.1rem;
  color: var(--fg-secondary);
  line-height: 1.75;
}

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

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

.footer-brand {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.1rem;
}

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

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .problem-grid {
    grid-template-columns: 1fr;
  }

  .hero-stats {
    flex-direction: column;
    gap: 16px;
    padding: 20px 24px;
  }

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

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

  .feature-number {
    font-size: 2rem;
    min-width: auto;
  }

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

  .proof-quote {
    padding: 32px 24px;
  }

  .quote-mark {
    position: static;
    display: block;
    margin-bottom: -16px;
  }

  .proof-quote p {
    padding-left: 0;
  }

  .quote-source {
    padding-left: 0;
  }

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