:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --surface: #f6f3fb;
  --text: #1c1830;
  --muted: #625c78;
  --accent: #7c2fe0;
  --accent-2: #e8246c;
  --rule: #e6e1ef;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f0c1a;
    --surface: #1a1628;
    --text: #f1eef8;
    --muted: #a8a1bd;
    --accent: #b88cff;
    --accent-2: #ff6fa3;
    --rule: #2b2542;
  }
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 ui-rounded, "SF Pro Rounded", -apple-system, BlinkMacSystemFont, system-ui,
    "Segoe UI", Roboto, sans-serif;
}

.site-header, main, .site-footer {
  max-width: 720px;
  margin: 0 auto;
  padding-left: 20px;
  padding-right: 20px;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 24px;
  padding-bottom: 8px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
}

.brand img { border-radius: 9px; }

nav { display: flex; gap: 18px; }

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

nav a:hover, nav a:focus-visible { color: var(--accent); }

main { padding-top: 8px; padding-bottom: 48px; }

h1 {
  margin: 24px 0 8px;
  font-size: 34px;
  line-height: 1.15;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

h2 { margin: 32px 0 8px; font-size: 22px; line-height: 1.3; }

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

.lede { font-size: 20px; color: var(--muted); }

.updated { font-size: 15px; color: var(--muted); }

.note {
  padding: 14px 18px;
  border-radius: 14px;
  background: var(--surface);
  border: 1px solid var(--rule);
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  margin: 28px 0;
}

.card {
  display: block;
  padding: 18px 20px;
  border-radius: 16px;
  border: 1px solid var(--rule);
  background: var(--surface);
  color: var(--text);
  text-decoration: none;
}

.card:hover, .card:focus-visible { border-color: var(--accent); }

.card strong { display: block; margin-bottom: 4px; font-size: 18px; }

.card span { font-size: 15px; color: var(--muted); }

.site-footer {
  padding-top: 16px;
  padding-bottom: 32px;
  border-top: 1px solid var(--rule);
  font-size: 14px;
  color: var(--muted);
}

@media (max-width: 480px) {
  body { font-size: 16px; }
  h1 { font-size: 28px; }
  .lede { font-size: 18px; }
}