:root {
  --bg: #f4f6f9;
  --card: #ffffff;
  --card-hover: #eef3fb;
  --text: #16202c;
  --muted: #4d5b6b;
  --line: #d5dce6;
  --accent: #1f5fbf;
  --accent-soft: #e3ecfa;
  --focus: #1f5fbf;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f141a;
    --card: #18202a;
    --card-hover: #1f2a37;
    --text: #e8edf3;
    --muted: #a7b3c2;
    --line: #2c3947;
    --accent: #8fb8ff;
    --accent-soft: #1d2d45;
    --focus: #8fb8ff;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans", "Helvetica Neue", Arial, sans-serif;
}
.wrap { max-width: 46rem; margin: 0 auto; padding: 2.5rem 1rem 3rem; }
header { text-align: center; margin-bottom: 2rem; }
.logo { width: 3rem; height: 3rem; color: var(--accent); }
h1 { font-size: 1.6rem; margin: .5rem 0 .25rem; letter-spacing: -.01em; overflow-wrap: anywhere; }
.tagline { margin: 0; color: var(--muted); }
h2 { font-size: 1rem; margin: 2rem 0 .75rem; color: var(--muted); font-weight: 600; }
ul { list-style: none; margin: 0; padding: 0; }
.cards { display: grid; gap: .75rem; grid-template-columns: repeat(auto-fill, minmax(17rem, 1fr)); }
.card {
  display: flex; gap: .9rem; align-items: flex-start;
  height: 100%; padding: 1rem 1.1rem;
  background: var(--card); color: inherit; text-decoration: none;
  border: 1px solid var(--line); border-radius: .9rem;
}
a.card:hover { background: var(--card-hover); border-color: var(--accent); }
a:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; border-radius: .6rem; }
.card svg { flex: none; width: 1.6rem; height: 1.6rem; margin-top: .15rem; color: var(--accent); }
.card strong { display: block; font-size: 1.05rem; }
.card .sw { font-weight: 400; color: var(--muted); font-size: .9rem; }
.card span.d { display: block; color: var(--muted); font-size: .92rem; }
.feature .card { padding: 1.3rem 1.3rem; background: var(--accent-soft); border-color: var(--accent); }
.feature .card svg { width: 2.2rem; height: 2.2rem; }
.feature .card strong { font-size: 1.3rem; }
code {
  font: .85rem/1.4 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  background: var(--bg); border: 1px solid var(--line); border-radius: .35rem;
  padding: .05rem .3rem; overflow-wrap: break-word; color: var(--text);
}
.admin {
  display: grid; gap: .25rem .75rem; grid-template-columns: repeat(auto-fill, minmax(13rem, 1fr));
  padding: .6rem 1.1rem; background: var(--card); border: 1px solid var(--line); border-radius: .9rem;
}
.admin a { display: block; padding: .35rem .2rem; color: var(--accent); text-decoration: none; }
.admin a:hover { text-decoration: underline; }
.admin small { color: var(--muted); }
footer a { color: var(--accent); }
footer { margin-top: 2.5rem; text-align: center; color: var(--muted); font-size: .85rem; }
@media (max-width: 30rem) {
  .wrap { padding-top: 1.5rem; }
  .cards { grid-template-columns: 1fr; }
}