:root {
  color-scheme: light dark;
  --paper: #f7f6f2;
  --paper-raised: #ffffff;
  --ink: #101720;
  --ink-secondary: #59616e;
  --rule: #e2e0d9;
  --stamp: #1f4b99;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #0e1116;
    --paper-raised: #171b22;
    --ink: #f2f1ec;
    --ink-secondary: #99a0ac;
    --rule: #262b34;
    --stamp: #6d9be8;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 17px/1.6 -apple-system, "SF Pro Text", "Segoe UI", system-ui, sans-serif;
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 20px 96px;
}

h1 {
  font-size: 28px;
  font-weight: 600;
  margin: 0 0 8px;
}

h2 {
  font-size: 20px;
  font-weight: 600;
  margin: 40px 0 12px;
}

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

.byline {
  color: var(--ink-secondary);
  font-size: 14px;
  margin: 0 0 40px;
}

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

.card-list {
  list-style: none;
  padding: 0;
  margin: 24px 0;
  display: grid;
  gap: 12px;
}

.card-list a {
  display: block;
  padding: 16px;
  border: 1px solid var(--rule);
  border-radius: 10px;
  background: var(--paper-raised);
  text-decoration: none;
  color: var(--ink);
}

.card-list a strong {
  color: var(--stamp);
}

.placeholder {
  background: color-mix(in srgb, var(--stamp) 12%, transparent);
  padding: 0 4px;
  border-radius: 4px;
}

footer {
  margin-top: 64px;
  padding-top: 16px;
  border-top: 1px solid var(--rule);
  color: var(--ink-secondary);
  font-size: 13px;
}