:root {
  --bg: #0b1220;
  --bg-alt: #0f1729;
  --surface: #141d33;
  --border: #1f2a44;
  --text: #e6ebf5;
  --muted: #8896b2;
  --accent: #60e0b3;
  --accent-strong: #3dd39d;
  --accent-ink: #06251b;
  --radius: 12px;
  --maxw: 1080px;
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Inter, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.muted { color: var(--muted); }
.small { font-size: 0.875rem; }

/* Nav */
.nav {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 700;
  letter-spacing: -0.01em;
}
.brand:hover { text-decoration: none; }
.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 30px; height: 30px;
  border-radius: 8px;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 800;
  font-size: 16px;
}
.brand-mark.small { width: 22px; height: 22px; font-size: 12px; border-radius: 6px; margin-right: 6px; vertical-align: -5px; }
.brand-name { font-size: 1.05rem; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  font-size: 0.95rem;
}
.nav-links a { color: var(--muted); }
.nav-links a:hover { color: var(--text); text-decoration: none; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 18px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  transition: transform 0.06s ease, background 0.15s ease, border-color 0.15s ease;
}
.btn:hover { text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
}
.btn-primary:hover { background: var(--accent-strong); }
.btn-ghost {
  color: var(--text);
  border-color: var(--border);
  background: transparent;
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

/* Hero */
.hero {
  padding: 60px 24px 40px;
  background:
    radial-gradient(1200px 500px at 80% -10%, rgba(96,224,179,0.10), transparent 60%),
    radial-gradient(900px 400px at 0% 0%, rgba(96,224,179,0.06), transparent 60%);
}
.hero-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  text-align: left;
}
.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  background: rgba(96,224,179,0.10);
  border: 1px solid rgba(96,224,179,0.25);
  padding: 4px 10px;
  border-radius: 999px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}
.hero h1 {
  font-size: clamp(2rem, 4.5vw, 3.4rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 18px 0 14px;
  max-width: 22ch;
}
.lede {
  font-size: 1.15rem;
  color: #cfd6e6;
  max-width: 60ch;
  margin: 0 0 24px;
}
.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 12px;
}
.cta-row-center { justify-content: center; }

/* Sections */
.section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 64px 24px;
}
.section-alt {
  max-width: none;
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.section-alt > * { max-width: var(--maxw); margin-left: auto; margin-right: auto; }
.section h2 {
  font-size: clamp(1.5rem, 2.6vw, 2rem);
  letter-spacing: -0.01em;
  margin: 0 0 8px;
}
.section-lede { color: var(--muted); margin: 0 0 28px; max-width: 65ch; }
.section-alt > h2, .section-alt > .section-lede { margin-inline: auto; }
.section-alt > .section-lede { max-width: var(--maxw); }

/* Grids */
.grid { display: grid; gap: 16px; }
.grid-3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0,1fr)); }
@media (max-width: 900px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, minmax(0,1fr)); }
}
@media (max-width: 560px) {
  .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

.card, .feature {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.card h3, .feature h3 {
  margin: 0 0 8px;
  font-size: 1rem;
  color: var(--accent);
  letter-spacing: 0;
}
.card p, .feature p { margin: 0; color: #cfd6e6; font-size: 0.95rem; }

/* Stats */
.stats {
  display: grid;
  grid-template-columns: repeat(5, minmax(0,1fr));
  gap: 12px;
  margin-bottom: 20px;
}
@media (max-width: 900px) { .stats { grid-template-columns: repeat(2, 1fr); } }
.stat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
}
.stat-num {
  display: block;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.01em;
}
.stat-label {
  display: block;
  font-size: 0.85rem;
  color: var(--muted);
  margin-top: 4px;
}
.caveat {
  background: rgba(96,224,179,0.06);
  border: 1px solid rgba(96,224,179,0.20);
  border-radius: var(--radius);
  padding: 14px 16px;
  color: #cfd6e6;
  font-size: 0.95rem;
}

/* Schema */
.schema {
  display: grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 16px;
}
@media (max-width: 800px) { .schema { grid-template-columns: 1fr; } }
.schema-col {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
}
.schema-col h4 {
  margin: 0 0 10px;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
}
.schema-col ul { list-style: none; padding: 0; margin: 0; }
.schema-col li { padding: 4px 0; font-size: 0.95rem; }
.schema-col code {
  font-family: var(--mono);
  font-size: 0.9rem;
  color: var(--text);
}

/* Code block */
.code {
  background: #06101f;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 0.85rem;
  color: #d5deee;
  margin-top: 24px;
  text-align: left;
}

.cta-section { text-align: center; }
.cta-section .section-lede { margin-left: auto; margin-right: auto; }

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  padding: 28px 24px 40px;
  background: var(--bg-alt);
}
.footer-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-links { display: flex; gap: 18px; }
.footer-legal {
  max-width: var(--maxw);
  margin: 16px auto 0;
  font-size: 0.8rem;
}

/* Reduce motion */
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}