:root {
  --bg: #f6f8fb; --card: #fff; --ink: #0b1220; --muted: #586174; --line: #e3e7ef;
  --accent: #2b4bee; --accent-2: #0fb5a6; --warn-bg: #fff7e0; --warn-ink: #6b4e00;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0b1220; --card: #121a2b; --ink: #f2f5fa; --muted: #9aa5ba; --line: #222c42;
          --accent: #6d86ff; --warn-bg: #2a2410; --warn-ink: #f1d27a; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink);
  font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
a { color: var(--accent); }
header { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  max-width: 1080px; margin: 0 auto; padding: 20px 16px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 20px;
  color: var(--ink); text-decoration: none; }
nav { display: flex; gap: 18px; }
nav a { color: var(--muted); text-decoration: none; }
nav a:hover { color: var(--ink); }
main { max-width: 1080px; margin: 0 auto; padding: 8px 16px 48px; }
h1 { font-size: clamp(28px, 5vw, 40px); margin: 12px 0 4px; }
.version { color: var(--muted); font-weight: 500; font-size: .55em; }
.lead { color: var(--muted); font-size: 18px; margin: 0 0 16px; }
.notice { background: var(--warn-bg); color: var(--warn-ink); border-radius: 10px;
  padding: 10px 14px; margin: 0 0 28px; }
.notice a { color: inherit; }
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(300px, 100%), 1fr)); gap: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 20px; }
.card.mine { border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 20%, transparent); }
.card.mine h2::after { content: "Your system"; margin-left: 10px; font-size: 12px; font-weight: 600;
  color: #fff; background: linear-gradient(90deg, #2b4bee, #0fb5a6); border-radius: 999px;
  padding: 2px 8px; vertical-align: middle; }
.card h2 { font-size: 18px; margin: 0 0 14px; }
.btn { display: flex; justify-content: space-between; align-items: center; gap: 12px;
  background: linear-gradient(90deg, #2b4bee, #0fb5a6); color: #fff; text-decoration: none;
  font-weight: 600; border-radius: 10px; padding: 11px 14px; margin-top: 10px; }
.btn span { font-weight: 400; opacity: .85; font-size: 14px; white-space: nowrap; }
.btn:hover { filter: brightness(1.08); }
.sha { margin: 6px 0 0; font-size: 12px; color: var(--muted); overflow-wrap: anywhere; }
.sha span { font-weight: 600; }
.card ol { padding-left: 20px; margin: 16px 0 0; color: var(--muted); font-size: 14.5px; }
.card li { margin: 6px 0; }
.card li b { color: var(--ink); }
code { font: 13px/1.4 ui-monospace, SFMono-Regular, Menlo, monospace; }
.soon { color: var(--muted); margin: 0; }
.verify { margin-top: 36px; }
.verify h2 { font-size: 20px; }
pre { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 14px;
  overflow-x: auto; }
footer { color: var(--muted); text-align: center; padding: 24px 16px 40px; font-size: 14px; }
html, body { overflow-x: hidden; }
.btn { min-width: 0; }
.btn span { flex: none; }