:root {
  --bg: #ffffff;
  --fg: #141a2e;
  --muted: #4a5470;
  --border: #d8dcea;
  --accent: #3b4fd8;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1020;
    --fg: #eef0f8;
    --muted: #a9b2cf;
    --border: #28325a;
    --accent: #8fa0ff;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 1rem/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
.wrap { max-width: 56rem; margin: 0 auto; padding: 2rem 1rem; }
h1 { margin: 0 0 1.5rem; font-size: 2rem; }
.grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}
@media (min-width: 480px) {
  .grid { grid-template-columns: repeat(auto-fill, minmax(16rem, 1fr)); }
}
.card {
  display: flex;
  flex-direction: column;
  gap: .25rem;
  min-height: 44px;
  padding: 1.25rem;
  border: 1px solid var(--border);
  border-radius: .75rem;
  color: var(--fg);
  text-decoration: none;
}
.card:hover { border-color: var(--accent); }
.card span { color: var(--muted); }
a:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }