:root {
  --indigo: #4f46e5;
  --indigo-soft: #eef2ff;
  --ink: #111827;
  --body: #4b5563;
  --muted: #6b7280;
  --line: #e5e7eb;
  --bg: #ffffff;
  --surface: #fafafa;
}

@media (prefers-color-scheme: dark) {
  :root {
    --indigo: #818cf8;
    --indigo-soft: #1e1b4b;
    --ink: #f9fafb;
    --body: #d1d5db;
    --muted: #9ca3af;
    --line: #27272a;
    --bg: #0b0b0f;
    --surface: #131318;
  }
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--body);
  font-family: Inter, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
    Helvetica, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: 44rem;
  margin: 0 auto;
  padding: 0 1rem;
}

.brand {
  display: flex;
  width: fit-content;
  align-items: center;
  gap: 0.625rem;
  text-decoration: none;
  color: var(--ink);
}

.brand svg {
  width: 2rem;
  height: 2rem;
  border-radius: 0.5rem;
  display: block;
}

.brand span {
  font-size: 1.375rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

/* ---------- landing ---------- */

.hero {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 4rem 1rem;
}

.hero-inner {
  max-width: 40rem;
  margin: 0 auto;
  width: 100%;
}

.badge {
  display: inline-block;
  margin: 2rem 0 1.25rem;
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  background: var(--indigo-soft);
  color: var(--indigo);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}

h1 {
  margin: 0 0 1.125rem;
  color: var(--ink);
  font-size: clamp(2rem, 6vw, 3.25rem);
  line-height: 1.1;
  letter-spacing: -0.033em;
  font-weight: 700;
}

.lede {
  margin: 0 0 2rem;
  font-size: clamp(1.0625rem, 2.4vw, 1.1875rem);
  max-width: 34rem;
}

.channels {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0 0 2.5rem;
  padding: 0;
  list-style: none;
}

.channels li {
  padding: 0.375rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.875rem;
  color: var(--muted);
  background: var(--surface);
}

.cta {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: 0.625rem;
  background: var(--indigo);
  color: #fff;
  font-weight: 600;
  text-decoration: none;
}

.cta:hover {
  filter: brightness(1.08);
}

.hero-foot {
  margin-top: 3.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
  font-size: 0.875rem;
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  align-items: center;
}

.hero-foot a {
  color: var(--muted);
}

/* ---------- document pages ---------- */

.doc-head {
  border-bottom: 1px solid var(--line);
  padding: 1.5rem 0;
}

article {
  padding: 3rem 0 4rem;
}

article h1 {
  font-size: clamp(1.875rem, 5vw, 2.5rem);
  margin-bottom: 0.5rem;
}

.updated {
  margin: 0 0 2.5rem;
  color: var(--muted);
  font-size: 0.9375rem;
}

article h2 {
  margin: 2.75rem 0 0.75rem;
  color: var(--ink);
  font-size: 1.3125rem;
  letter-spacing: -0.015em;
  line-height: 1.3;
}

article h3 {
  margin: 1.75rem 0 0.5rem;
  color: var(--ink);
  font-size: 1.0625rem;
}

article p,
article li {
  margin: 0 0 1rem;
}

article ul {
  padding-left: 1.25rem;
}

article li {
  margin-bottom: 0.5rem;
}

article a {
  color: var(--indigo);
}

.note {
  margin: 2rem 0;
  padding: 1rem 1.25rem;
  border-left: 3px solid var(--indigo);
  background: var(--surface);
  border-radius: 0 0.5rem 0.5rem 0;
  font-size: 0.9375rem;
}

.note strong {
  color: var(--ink);
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.25rem 0 1.75rem;
  font-size: 0.9375rem;
}

th,
td {
  text-align: left;
  padding: 0.625rem 0.75rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

th {
  color: var(--ink);
  font-weight: 600;
  white-space: nowrap;
}

footer {
  border-top: 1px solid var(--line);
  padding: 2rem 0 3rem;
  font-size: 0.875rem;
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
}

footer a {
  color: var(--muted);
}