:root {
  --bg: #080c0f;
  --surface: #0f1318;
  --surface-2: #161b22;
  --border: #1e2530;
  --fg: #e4e8ed;
  --fg-secondary: #7a8899;
  --fg-muted: #4a5568;
  --accent: #4fffb0;
  --accent-dim: #1a3d30;
  --red: #ff6b6b;
  --amber: #ffd93d;
  --font-display: 'Sora', sans-serif;
  --font-mono: 'DM Mono', monospace;
}

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Nav */
.nav {
  padding: 24px 48px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 10;
}
.nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.nav-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.5px;
  color: var(--fg);
}
.nav-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  color: var(--fg-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

/* Hero */
.hero {
  padding: 96px 48px 80px;
  max-width: 900px;
}
.hero-eyebrow {
  margin-bottom: 24px;
}
.eyebrow-tag {
  display: inline-block;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  border: 1px solid var(--accent-dim);
  padding: 4px 10px;
  background: var(--accent-dim);
}
.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(48px, 7vw, 88px);
  font-weight: 800;
  line-height: 1.0;
  letter-spacing: -2px;
  color: var(--fg);
  margin-bottom: 32px;
}
.hero-sub {
  font-size: 16px;
  color: var(--fg-secondary);
  max-width: 560px;
  line-height: 1.7;
  margin-bottom: 64px;
}
.hero-stats {
  display: flex;
  align-items: center;
  gap: 40px;
  padding-top: 40px;
  border-top: 1px solid var(--border);
}
.stat { max-width: 200px; }
.stat-value {
  display: block;
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 6px;
}
.stat-label {
  display: block;
  font-size: 11px;
  color: var(--fg-muted);
  line-height: 1.5;
}
.stat-divider {
  width: 1px;
  height: 48px;
  background: var(--border);
}

/* Problem */
.problem { padding: 80px 48px; border-top: 1px solid var(--border); }
.problem-inner { max-width: 900px; }
.section-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--fg-muted);
  margin-bottom: 48px;
}
.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}
.problem-card {
  background: var(--bg);
  padding: 40px 32px;
}
.problem-icon {
  color: var(--fg-muted);
  margin-bottom: 20px;
}
.problem-card h3 {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 12px;
}
.problem-card p {
  font-size: 12px;
  color: var(--fg-secondary);
  line-height: 1.7;
}

/* Features */
.features { padding: 80px 48px; border-top: 1px solid var(--border); }
.features-inner { max-width: 900px; }
.features-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  background: var(--border);
}
.feature-card {
  background: var(--surface);
  padding: 40px;
}
.feature-card--main {
  grid-column: 1;
  grid-row: 1;
}
.feature-number {
  font-size: 11px;
  color: var(--fg-muted);
  margin-bottom: 16px;
}
.feature-card h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
  line-height: 1.3;
}
.feature-card p {
  font-size: 12px;
  color: var(--fg-secondary);
  line-height: 1.7;
}
.feature-visual { margin-top: 28px; }
.health-bar { }
.health-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--fg-muted);
  margin-bottom: 8px;
}
.health-track {
  height: 4px;
  background: var(--surface-2);
  border-radius: 2px;
}
.health-fill {
  height: 4px;
  border-radius: 2px;
}
.health-fill--good { width: 87%; background: var(--accent); }

/* How */
.how { padding: 80px 48px; border-top: 1px solid var(--border); }
.how-inner { max-width: 900px; }
.how-steps { display: flex; flex-direction: column; }
.step {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 40px;
  padding-bottom: 48px;
}
.step:last-child .step-track { display: none; }
.step-line { display: flex; flex-direction: column; align-items: center; }
.step-num {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  color: var(--fg-muted);
  margin-bottom: 12px;
}
.step-track {
  flex: 1;
  width: 1px;
  background: var(--border);
  margin-top: 8px;
}
.step-content h3 {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 10px;
}
.step-content p {
  font-size: 12px;
  color: var(--fg-secondary);
  line-height: 1.7;
}

/* Closing */
.closing {
  padding: 80px 48px;
  border-top: 1px solid var(--border);
}
.closing-inner { max-width: 900px; }
.closing-statement {
  font-family: var(--font-display);
  font-size: clamp(20px, 2.5vw, 28px);
  font-weight: 500;
  line-height: 1.4;
  color: var(--fg);
  margin-bottom: 40px;
}
.closing-meta { display: flex; gap: 16px; flex-wrap: wrap; }
.meta-tag {
  font-size: 11px;
  color: var(--fg-secondary);
  padding: 6px 12px;
  border: 1px solid var(--border);
}

/* Footer */
.footer {
  padding: 40px 48px;
  border-top: 1px solid var(--border);
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
}
.footer-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  margin-bottom: 8px;
}
.footer-brand p {
  font-size: 12px;
  color: var(--fg-muted);
}
.footer-meta {
  font-size: 11px;
  color: var(--fg-muted);
}

/* Mobile */
@media (max-width: 768px) {
  .nav { padding: 16px 24px; }
  .hero { padding: 64px 24px 48px; }
  .problem { padding: 64px 24px; }
  .features { padding: 64px 24px; }
  .how { padding: 64px 24px; }
  .closing { padding: 64px 24px; }
  .footer { padding: 32px 24px; }
  .hero-stats { flex-direction: column; gap: 20px; }
  .stat-divider { width: 40px; height: 1px; }
  .problem-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .step { grid-template-columns: 60px 1fr; gap: 20px; }
  .footer-inner { flex-direction: column; gap: 16px; }
}