:root {
  --bg: #09090b;
  --surface: #18181b;
  --border: #27272a;
  --text: #fafafa;
  --muted: #a1a1aa;
  --accent: #22d3ee;
  --accent-dim: #0891b2;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  font-size: 16px;
}

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

.site-header {
  border-bottom: 1px solid var(--border);
  background: rgba(9, 9, 11, 0.9);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.site-header-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 0.85rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--text);
  font-weight: 700;
  text-decoration: none;
}

.brand img { height: 28px; width: auto; }

.nav { display: flex; flex-wrap: wrap; gap: 0.35rem 1rem; font-size: 0.875rem; }
.nav a { color: var(--muted); text-decoration: none; }
.nav a:hover { color: var(--accent); text-decoration: none; }

main {
  max-width: 760px;
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
}

main.wide { max-width: 960px; }

h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 1rem;
}

h2 {
  font-size: 1.35rem;
  margin: 2.5rem 0 0.75rem;
  color: var(--text);
}

h3 { font-size: 1.05rem; margin: 1.5rem 0 0.5rem; }

.lead { font-size: 1.125rem; color: var(--muted); margin-bottom: 2rem; }

.meta {
  font-size: 0.8125rem;
  color: var(--muted);
  margin-bottom: 2rem;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 2rem 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.25rem;
  border-radius: 0.5rem;
  font-weight: 600;
  font-size: 0.9375rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
}

.btn-primary {
  background: var(--accent);
  color: #09090b;
}

.btn-primary:hover { background: #67e8f9; text-decoration: none; }

.btn-secondary {
  border: 1px solid var(--border);
  color: var(--text);
  background: var(--surface);
}

.btn-secondary:hover { border-color: var(--accent); text-decoration: none; }

article p, article li { color: #d4d4d8; }

article ul, article ol { padding-left: 1.25rem; }
article li { margin: 0.35rem 0; }

pre, code {
  font-family: 'IBM Plex Mono', ui-monospace, monospace;
  font-size: 0.875em;
}

pre {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 1rem;
  overflow-x: auto;
  line-height: 1.5;
}

code {
  background: var(--surface);
  padding: 0.1em 0.35em;
  border-radius: 0.25rem;
}

.faq details {
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 0.85rem 1rem;
  margin: 0.5rem 0;
  background: var(--surface);
}

.faq summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--text);
}

.faq p { margin: 0.75rem 0 0; }

.pricing-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  margin: 2rem 0;
}

.plan {
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 1.25rem;
  background: var(--surface);
}

.plan.featured { border-color: var(--accent-dim); box-shadow: 0 0 0 1px rgba(34, 211, 238, 0.15); }

.plan h3 { margin-top: 0; }

.price { font-size: 1.75rem; font-weight: 700; margin: 0.5rem 0; }

.plan ul { list-style: none; padding: 0; margin: 1rem 0; font-size: 0.875rem; }
.plan li { padding: 0.25rem 0; color: var(--muted); }
.plan li::before { content: '✓ '; color: var(--accent); }

.toc {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 1rem 1.25rem;
  margin: 1.5rem 0 2rem;
}

.toc ol { margin: 0.5rem 0 0; padding-left: 1.25rem; }
.toc a { color: var(--muted); }
.toc a:hover { color: var(--accent); }

.site-footer {
  border-top: 1px solid var(--border);
  padding: 2rem 1.25rem;
  margin-top: 2rem;
  background: var(--surface);
}

.footer-inner {
  max-width: 960px;
  margin: 0 auto;
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  font-size: 0.8125rem;
}

.footer-inner h4 {
  margin: 0 0 0.5rem;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
}

.footer-inner ul { list-style: none; padding: 0; margin: 0; }
.footer-inner li { margin: 0.35rem 0; }
.footer-inner a { color: var(--muted); text-decoration: none; }
.footer-inner a:hover { color: var(--accent); }

.copyright {
  max-width: 960px;
  margin: 1.5rem auto 0;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.75rem;
  text-align: center;
}

.badge {
  display: inline-block;
  font-size: 0.75rem;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  border: 1px solid rgba(34, 211, 238, 0.35);
  background: rgba(34, 211, 238, 0.08);
  color: var(--accent);
  margin-bottom: 1rem;
}

@media (max-width: 640px) {
  .nav { display: none; }
}