:root {
  color-scheme: light dark;
  --bg: #faf9f7;
  --ink: #17191c;
  --muted: #5b6268;
  --line: #ded8d3;
  --panel: #ffffff;
  --primary: #ab2148;
  --accent: #b86215;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111113;
    --ink: #edf2ef;
    --muted: #b3bab6;
    --line: #423c42;
    --panel: #19191d;
    --primary: #f56e94;
    --accent: #f9b352;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

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

.shell {
  width: min(920px, calc(100% - 32px));
  margin: 0 auto;
}

header {
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 92%, transparent);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
}

.mark {
  display: inline-grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--primary);
  color: #fff;
  font-size: 17px;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

nav a {
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
}

nav a:hover {
  color: var(--primary);
}

main {
  padding: 48px 0 72px;
}

.hero {
  padding: 40px 0 24px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 12px;
  max-width: 780px;
  font-size: clamp(36px, 5vw, 56px);
  line-height: 1.05;
}

h2 {
  margin: 40px 0 10px;
  font-size: 24px;
  line-height: 1.25;
}

h3 {
  margin: 28px 0 8px;
  font-size: 18px;
}

p {
  margin: 0 0 16px;
}

ul {
  margin: 0 0 18px;
  padding-left: 24px;
}

li + li {
  margin-top: 6px;
}

.lead {
  max-width: 760px;
  color: var(--muted);
  font-size: 19px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  margin-top: 28px;
}

.card {
  min-height: 150px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  text-decoration: none;
}

.card strong {
  display: block;
  margin-bottom: 8px;
  color: var(--ink);
  font-size: 18px;
}

.card span {
  color: var(--muted);
}

.doc {
  max-width: 780px;
}

.updated {
  color: var(--muted);
  font-size: 14px;
}

.notice {
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  padding: 24px 0;
}

@media (max-width: 640px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  main {
    padding-top: 28px;
  }
}