:root {
  --bg: #050505;
  --bg-secondary: #0d0d0d;
  --fg: #f5f5f7;
  --fg-muted: #86868b;
  --accent: #00E5A0;
  --accent-dim: rgba(0, 229, 160, 0.08);
  --border: rgba(255,255,255,0.06);
  --card-bg: #0d0d0d;
}

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'Space Grotesk', sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Hero */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 80px 40px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(0,229,160,0.04) 0%, transparent 70%);
  pointer-events: none;
}

.hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  border: 1px solid var(--accent);
  border-radius: 100px;
  font-size: 12px;
  font-family: 'DM Mono', monospace;
  color: var(--accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 28px;
}

.hero h1 {
  font-size: clamp(40px, 5vw, 72px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.lede {
  font-size: 18px;
  color: var(--fg-muted);
  line-height: 1.6;
  max-width: 480px;
  margin-bottom: 48px;
}

/* Pulse visual */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.pulse-ring {
  position: relative;
  width: 220px;
  height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.core {
  z-index: 10;
  background: var(--accent-dim);
  border: 2px solid var(--accent);
  border-radius: 50%;
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(0,229,160,0.2);
  animation: pulse 3s ease-in-out infinite;
}

.ring-1 { width: 120px; height: 120px; animation-delay: 0s; }
.ring-2 { width: 170px; height: 170px; animation-delay: 0.5s; }
.ring-3 { width: 220px; height: 220px; animation-delay: 1s; }

@keyframes pulse {
  0% { opacity: 0.3; transform: scale(0.9); }
  50% { opacity: 0.8; transform: scale(1); }
  100% { opacity: 0; transform: scale(1.2); }
}

/* Features */
.features {
  padding: 120px 40px;
  background: var(--bg-secondary);
}

.features-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
}

.feature-card {
  background: var(--card-bg);
  padding: 48px;
  border: 1px solid var(--border);
  transition: border-color 0.2s;
}

.feature-card:hover {
  border-color: rgba(0,229,160,0.2);
}

.feature-icon {
  color: var(--accent);
  margin-bottom: 24px;
}

.feature-card h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.feature-card p {
  font-size: 15px;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* How */
.how {
  padding: 120px 40px;
}

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

.how-inner h2 {
  font-size: 14px;
  font-family: 'DM Mono', monospace;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--fg-muted);
  margin-bottom: 64px;
}

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

.step {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 32px;
  padding: 48px 0;
  border-bottom: 1px solid var(--border);
  align-items: start;
}

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

.step-num {
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  color: var(--accent);
  padding-top: 4px;
}

.step-content h4 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.step-content p {
  font-size: 15px;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* Closing */
.closing {
  padding: 120px 40px;
  border-top: 1px solid var(--border);
}

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

.closing-statement {
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 500;
  line-height: 1.3;
  letter-spacing: -0.02em;
  color: var(--fg);
}

/* Footer */
footer {
  padding: 48px 40px;
  border-top: 1px solid var(--border);
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.footer-logo {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.footer-tagline {
  font-size: 13px;
  color: var(--fg-muted);
}

.footer-legal {
  font-size: 13px;
  color: var(--fg-muted);
  font-family: 'DM Mono', monospace;
}

/* Mobile */
@media (max-width: 768px) {
  .hero { padding: 60px 24px; }
  .hero-inner { grid-template-columns: 1fr; gap: 48px; }
  .hero-visual { display: none; }
  .features { padding: 80px 24px; }
  .features-grid { grid-template-columns: 1fr; }
  .how { padding: 80px 24px; }
  .closing { padding: 80px 24px; }
  .feature-card { padding: 32px; }
  .step { grid-template-columns: 48px 1fr; gap: 16px; padding: 32px 0; }
  .footer-inner { flex-direction: column; gap: 16px; align-items: flex-start; }
}