:root {
  --bg: #0a0e17;
  --bg-elevated: #111827;
  --bg-card: #151c2c;
  --fg: #e2e8f0;
  --fg-muted: #8892a6;
  --fg-dim: #4a5568;
  --accent: #22d3ee;
  --accent-glow: rgba(34, 211, 238, 0.15);
  --warning: #f59e0b;
  --danger: #ef4444;
  --border: rgba(255, 255, 255, 0.06);
  --font-display: 'Space Grotesk', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --max-width: 1120px;
}

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

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

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

/* === HERO === */
.hero {
  padding: 100px 24px 80px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.hero-inner { max-width: 720px; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: var(--accent-glow);
  border: 1px solid rgba(34, 211, 238, 0.25);
  border-radius: 100px;
  margin-bottom: 32px;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(34, 211, 238, 0.4); }
  50% { opacity: 0.7; box-shadow: 0 0 0 6px rgba(34, 211, 238, 0); }
}

.badge-text {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 1.5px;
  color: var(--accent);
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.2rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -1.5px;
  margin-bottom: 24px;
}

.lede {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 560px;
  line-height: 1.7;
}

.hero-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 56px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 1.5px;
  color: var(--fg-dim);
}

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -1px;
}

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

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

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

.section-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 2px;
  color: var(--accent);
  display: block;
  margin-bottom: 16px;
}

.problem h2, .features h2, .how h2, .closing h2 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 48px;
}

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

.problem-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
}

.problem-number {
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--danger);
  letter-spacing: -1px;
  margin-bottom: 12px;
}

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

/* === FEATURES === */
.features {
  padding: 100px 24px;
  max-width: var(--max-width);
  margin: 0 auto;
}

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

.feature-row {
  display: flex;
  gap: 32px;
  padding: 36px 0;
  border-bottom: 1px solid var(--border);
  align-items: flex-start;
}

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

.feature-icon {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 500;
  color: var(--accent);
  min-width: 40px;
  padding-top: 4px;
}

.feature-content h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 8px;
  letter-spacing: -0.3px;
}

.feature-content p {
  font-size: 0.95rem;
  color: var(--fg-muted);
  line-height: 1.65;
  max-width: 600px;
}

/* === HOW === */
.how {
  padding: 100px 24px;
  background: var(--bg-elevated);
}

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

.how-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
  padding-left: 40px;
}

.step {
  position: relative;
  padding: 32px 0;
}

.step-line {
  position: absolute;
  left: -28px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--border);
}

.step:last-child .step-line { display: none; }

.step-dot {
  position: absolute;
  left: -32px;
  top: 38px;
  width: 9px;
  height: 9px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 12px rgba(34, 211, 238, 0.4);
}

.step-label {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 2px;
  color: var(--accent);
  display: block;
  margin-bottom: 8px;
}

.step-content p {
  font-size: 1rem;
  color: var(--fg-muted);
  line-height: 1.65;
  max-width: 560px;
}

/* === CLOSING === */
.closing {
  padding: 120px 24px;
  max-width: var(--max-width);
  margin: 0 auto;
  text-align: center;
}

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

.closing h2 {
  margin-bottom: 24px;
}

.closing-text {
  font-size: 1.1rem;
  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);
}

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

.footer-brand {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 3px;
  color: var(--fg);
}

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

/* === RESPONSIVE === */
@media (max-width: 768px) {
  .hero { padding: 72px 20px 60px; }
  .hero-grid { grid-template-columns: 1fr; gap: 12px; }
  .problem-grid { grid-template-columns: 1fr; gap: 16px; }
  .feature-row { flex-direction: column; gap: 12px; }
  .feature-icon { min-width: unset; }
  .how-steps { padding-left: 32px; }
  .step-line { left: -20px; }
  .step-dot { left: -24px; }
  .closing { padding: 80px 20px; }
  .footer-inner { flex-direction: column; gap: 8px; text-align: center; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 2rem; }
  .problem h2, .features h2, .how h2, .closing h2 { font-size: 1.6rem; }
  .stat-value { font-size: 1.6rem; }
  .problem-number { font-size: 1.8rem; }
}