:root {
  --bg: #0a0a0f;
  --bg-elevated: #12121a;
  --bg-card: #16161f;
  --fg: #e8e8ef;
  --fg-muted: #8888a0;
  --accent: #00ff88;
  --accent-dim: rgba(0, 255, 136, 0.15);
  --accent-glow: rgba(0, 255, 136, 0.4);
  --border: rgba(255, 255, 255, 0.06);
  --font-main: 'Space Grotesk', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --max-w: 1120px;
}

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

html { scroll-behavior: smooth; }

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

.accent { color: var(--accent); }
.mono { font-family: var(--font-mono); letter-spacing: 0.05em; }

/* ============ HERO ============ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 24px 80px;
  overflow: hidden;
}

.hero-grid {
  max-width: var(--max-w);
  width: 100%;
  position: relative;
  z-index: 2;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(0, 255, 136, 0.2);
  padding: 6px 16px;
  border-radius: 4px;
  margin-bottom: 32px;
}

.hero h1 {
  font-size: clamp(3rem, 8vw, 6.5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 28px;
}

.hero-sub {
  font-size: 1.2rem;
  color: var(--fg-muted);
  max-width: 600px;
  line-height: 1.7;
  margin-bottom: 56px;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 32px;
  padding: 28px 36px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 12px;
  width: fit-content;
}

.stat { display: flex; flex-direction: column; gap: 4px; }
.stat-num {
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
  font-family: var(--font-mono);
}
.stat-label {
  font-size: 0.8rem;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.stat-divider {
  width: 1px;
  height: 48px;
  background: var(--border);
}

.hero-glow {
  position: absolute;
  top: -200px;
  right: -200px;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  opacity: 0.12;
  pointer-events: none;
  z-index: 1;
}

/* ============ PROBLEM ============ */
.problem {
  padding: 120px 24px;
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

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

.problem-label,
.how-label,
.features-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.problem h2,
.how h2,
.features h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 48px;
  line-height: 1.15;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.problem-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px 28px;
}

.problem-icon {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: 16px;
  opacity: 0.7;
}

.problem-card p {
  font-size: 1rem;
  color: var(--fg-muted);
  line-height: 1.7;
}

.problem-punchline {
  font-size: 1.15rem;
  color: var(--fg);
  font-weight: 500;
  max-width: 680px;
  line-height: 1.7;
}

/* ============ HOW IT WORKS ============ */
.how {
  padding: 120px 24px;
}

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

.timeline { max-width: 640px; }

.timeline-item {
  display: flex;
  gap: 28px;
  padding-bottom: 48px;
}

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

.timeline-marker {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex-shrink: 0;
}

.marker-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent-glow);
  flex-shrink: 0;
}

.marker-line {
  width: 2px;
  flex: 1;
  background: linear-gradient(to bottom, var(--accent), transparent);
  margin-top: 8px;
  opacity: 0.3;
}

.timeline-content h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.timeline-content p {
  font-size: 1rem;
  color: var(--fg-muted);
  line-height: 1.7;
}

/* ============ FEATURES ============ */
.features {
  padding: 120px 24px;
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

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

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.feature-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 36px 32px;
  transition: border-color 0.2s;
}

.feature-card:hover {
  border-color: rgba(0, 255, 136, 0.2);
}

.feature-highlight {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, var(--bg-card) 0%, rgba(0, 255, 136, 0.03) 100%);
  border-color: rgba(0, 255, 136, 0.12);
}

.feature-tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 14px;
  opacity: 0.8;
}

.feature-card h3 {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.feature-card p {
  font-size: 0.95rem;
  color: var(--fg-muted);
  line-height: 1.7;
}

/* ============ CLOSING ============ */
.closing {
  position: relative;
  padding: 140px 24px;
  text-align: center;
  overflow: hidden;
}

.closing-inner {
  position: relative;
  z-index: 2;
  max-width: 720px;
  margin: 0 auto;
}

.closing-glow {
  position: absolute;
  bottom: -300px;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 600px;
  background: radial-gradient(ellipse, var(--accent-glow) 0%, transparent 65%);
  opacity: 0.08;
  pointer-events: none;
  z-index: 1;
}

.closing h2 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 24px;
}

.closing-text {
  font-size: 1.15rem;
  color: var(--fg-muted);
  line-height: 1.8;
  margin-bottom: 48px;
}

.closing-tagline {
  font-size: 0.85rem;
  color: var(--fg-muted);
  letter-spacing: 0.02em;
}

.closing-tagline .mono {
  color: var(--accent);
  font-weight: 500;
}

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

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

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-logo {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--bg);
  background: var(--accent);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
}

.footer-name {
  font-weight: 600;
  font-size: 0.95rem;
}

.footer-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.8rem;
  color: var(--fg-muted);
}

.footer-dot {
  width: 4px;
  height: 4px;
  background: var(--fg-muted);
  border-radius: 50%;
  opacity: 0.5;
}

/* ============ MOBILE ============ */
@media (max-width: 768px) {
  .hero { padding: 80px 20px 60px; min-height: auto; }
  .hero h1 { font-size: 2.8rem; }
  .hero-sub { font-size: 1.05rem; }
  .hero-stats {
    flex-direction: column;
    gap: 20px;
    padding: 24px;
    width: 100%;
    align-items: flex-start;
  }
  .stat-divider { width: 100%; height: 1px; }
  .problem, .how, .features, .closing { padding: 80px 20px; }
  .problem-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .feature-highlight { grid-column: 1; }
  .timeline-item { gap: 20px; }
  .footer-inner { flex-direction: column; gap: 16px; text-align: center; }
  .closing h2 { font-size: 2.2rem; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 2.2rem; }
  .hero-badge { font-size: 0.65rem; }
}