:root {
  --bg: #0a0a0f;
  --bg-elevated: #12121a;
  --bg-card: #16161f;
  --fg: #e0e0e8;
  --fg-dim: #6b6b7b;
  --fg-muted: #3a3a4a;
  --accent: #00ff88;
  --accent-dim: #00cc6a;
  --amber: #ffb800;
  --red: #ff4444;
  --yellow: #ffcc00;
  --green: #00ff88;
  --border: #1e1e2a;
  --font-display: 'Space Grotesk', sans-serif;
  --font-mono: 'Space Mono', monospace;
}

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

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

/* ==================== HERO ==================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 80px 40px;
  position: relative;
  background:
    radial-gradient(ellipse 600px 400px at 20% 50%, rgba(0,255,136,0.04) 0%, transparent 70%),
    radial-gradient(ellipse 500px 300px at 80% 30%, rgba(255,184,0,0.03) 0%, transparent 70%),
    var(--bg);
}

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

.logo-mark {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  margin-bottom: 32px;
  letter-spacing: -0.02em;
}

.logo-mark .hash {
  color: var(--accent);
  font-weight: 700;
}

.logo-mark .chan {
  color: var(--fg);
  font-weight: 400;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.hero .lede {
  font-size: 1.1rem;
  color: var(--fg-dim);
  max-width: 480px;
  line-height: 1.7;
}

/* Terminal */
.hero-terminal {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 24px 80px rgba(0,0,0,0.5);
}

.terminal-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 18px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.dot.red { background: var(--red); }
.dot.yellow { background: var(--yellow); }
.dot.green { background: var(--green); }

.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--fg-dim);
  margin-left: 8px;
}

.terminal-body {
  padding: 24px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.8;
}

.terminal-body .prompt { color: var(--accent); font-weight: 700; }
.terminal-body .cmd { color: var(--fg); }
.terminal-body .dim { color: var(--fg-dim); }
.terminal-body .success { color: var(--amber); font-weight: 700; }
.terminal-body .confirmed { color: var(--accent); }

/* ==================== HOW IT WORKS ==================== */
.how-it-works {
  padding: 120px 40px;
  max-width: 1200px;
  margin: 0 auto;
}

.how-it-works h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 600;
  margin-bottom: 64px;
  letter-spacing: -0.02em;
}

.flow {
  display: flex;
  align-items: flex-start;
  gap: 24px;
}

.flow-step {
  flex: 1;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
}

.step-number {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: 16px;
  font-weight: 700;
}

.flow-step h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.flow-step p {
  font-size: 0.95rem;
  color: var(--fg-dim);
  line-height: 1.6;
}

.flow-arrow {
  font-size: 1.5rem;
  color: var(--fg-muted);
  padding-top: 48px;
  flex-shrink: 0;
}

/* ==================== FEATURES ==================== */
.features {
  padding: 120px 40px;
  max-width: 1200px;
  margin: 0 auto;
}

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

.features h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.features-sub {
  color: var(--fg-dim);
  font-size: 1.1rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

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

.feature-card:hover {
  border-color: var(--accent);
}

.feature-icon {
  font-size: 1.6rem;
  margin-bottom: 16px;
  color: var(--accent);
}

.feature-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.feature-card p {
  color: var(--fg-dim);
  font-size: 0.92rem;
  line-height: 1.6;
}

/* ==================== COMPARISON ==================== */
.comparison {
  padding: 120px 40px;
  max-width: 900px;
  margin: 0 auto;
}

.comparison h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 48px;
}

.compare-table {
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

.compare-row {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  border-bottom: 1px solid var(--border);
}

.compare-row:last-child { border-bottom: none; }

.compare-row.compare-header {
  background: var(--bg-card);
  font-weight: 600;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.compare-row > div {
  padding: 16px 24px;
  font-size: 0.92rem;
}

.compare-label {
  color: var(--fg-dim);
  font-weight: 500;
}

.compare-them {
  color: var(--fg-dim);
  background: var(--bg-elevated);
}

.compare-us {
  background: var(--bg-card);
}

.compare-us.accent {
  color: var(--accent);
  font-weight: 500;
}

.compare-header .compare-them,
.compare-header .compare-us {
  color: var(--fg);
}

/* ==================== CLOSING ==================== */
.closing {
  padding: 160px 40px;
  text-align: center;
  background:
    radial-gradient(ellipse 700px 400px at 50% 50%, rgba(0,255,136,0.05) 0%, transparent 70%),
    var(--bg);
}

.closing-content {
  max-width: 640px;
  margin: 0 auto;
}

.closing-hash {
  font-family: var(--font-mono);
  font-size: 4rem;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 32px;
  opacity: 0.6;
}

.closing h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.closing p {
  color: var(--fg-dim);
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 16px;
}

.closing-mono {
  font-family: var(--font-mono);
  color: var(--accent) !important;
  font-weight: 700;
  font-size: 1rem !important;
  margin-top: 32px !important;
}

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

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

.footer-brand {
  font-family: var(--font-mono);
  font-size: 1.1rem;
}

.footer-brand .hash { color: var(--accent); font-weight: 700; }
.footer-brand .chan { color: var(--fg); }

.footer-links {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--fg-dim);
}

.footer-links .sep {
  margin: 0 12px;
  color: var(--fg-muted);
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 768px) {
  .hero { padding: 60px 24px; min-height: auto; }
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .flow { flex-direction: column; }
  .flow-arrow { display: none; }
  .feature-grid { grid-template-columns: 1fr; }
  .compare-row { grid-template-columns: 1fr; }
  .compare-row.compare-header { display: none; }
  .compare-row > div { padding: 12px 20px; }
  .compare-label { font-weight: 600; color: var(--fg); padding-top: 20px !important; }
  .how-it-works, .features, .comparison, .closing { padding: 80px 24px; }
  .footer-content { flex-direction: column; gap: 16px; text-align: center; }
}