:root {
  --bg: #0b1220;
  --fg: #e5e7eb;
  --muted: #9ca3af;
  --accent: #38bdf8;
  --panel: #111827;
  --line: #243041;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.6;
}

main {
  max-width: 980px;
  margin: 0 auto;
  padding: 72px 24px 96px;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  line-height: 1.1;
  color: var(--fg);
}

h1 {
  font-size: 2.8rem;
  margin: 0 0 12px;
}

h2 {
  font-size: 1.3rem;
  margin: 38px 0 14px;
}

h3 {
  margin: 24px 0 10px;
  font-size: 1.12rem;
}

p,
li {
  color: var(--muted);
}

a {
  color: var(--accent);
}

.lead {
  font-size: 1.08rem;
  max-width: 760px;
}

.banner,
.card {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 14px;
}

.banner {
  padding: 22px 24px;
  background: linear-gradient(180deg, rgba(56, 189, 248, 0.12), rgba(17, 24, 39, 0.95));
  margin-bottom: 28px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.card {
  padding: 18px;
}

.card strong {
  display: block;
  color: var(--fg);
  margin-bottom: 8px;
}

pre,
code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

pre {
  background: #0f172a;
  color: #e5e7eb;
  padding: 16px;
  border-radius: 12px;
  overflow: auto;
  border: 1px solid var(--line);
}

code {
  background: rgba(56,189,248,0.12);
  padding: 0.1rem 0.35rem;
  border-radius: 6px;
}

.wordmark {
  display: block;
  width: 100%;
  height: auto;
  margin: 0 0 18px;
}

.backlink {
  margin-top: 0;
}

ul {
  padding-left: 20px;
}