:root {
  --bg: #f7f8fa;
  --card: #ffffff;
  --ink: #0f172a;
  --muted: #5b6475;
  --line: #e4e7ec;
  --accent: #2563eb;
  --ok: #059669;
  --warn: #b45309;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b0f17;
    --card: #121826;
    --ink: #e8ecf3;
    --muted: #9aa4b5;
    --line: #232c3d;
    --accent: #6ea0ff;
    --ok: #34d399;
    --warn: #fbbf24;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.6 Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--accent); }
.wrap { max-width: 720px; margin: 0 auto; padding: 48px 16px 64px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: 15px; letter-spacing: -0.01em; color: var(--ink); text-decoration: none; }
.brand-mark { width: 28px; height: 28px; border-radius: 8px; background: var(--ink); color: var(--bg); display: grid; place-items: center; font-size: 13px; font-weight: 700; }
.card { margin-top: 28px; background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 28px; }
h1 { font-size: 24px; line-height: 1.25; letter-spacing: -0.02em; margin: 0 0 8px; }
h2 { font-size: 17px; margin: 28px 0 6px; letter-spacing: -0.01em; }
p, li { color: var(--muted); }
p { margin: 0 0 12px; }
ul { padding-left: 20px; margin: 0 0 12px; }
.meta { font-size: 13px; color: var(--muted); }
.btn { display: inline-block; margin-top: 8px; padding: 10px 16px; border-radius: 10px; background: var(--accent); color: #fff; text-decoration: none; font-weight: 600; font-size: 14px; }
.status { display: flex; align-items: center; gap: 12px; }
.spinner { width: 20px; height: 20px; border-radius: 50%; border: 2.5px solid var(--line); border-top-color: var(--accent); animation: spin 0.8s linear infinite; flex: none; }
@keyframes spin { to { transform: rotate(360deg); } }
.warn { color: var(--warn); }
footer { margin-top: 28px; font-size: 13px; color: var(--muted); display: flex; flex-wrap: wrap; gap: 16px; }
footer a { color: var(--muted); }
[hidden] { display: none !important; }