:root {
  --bg: #0d1117; --surface: #161b22; --surface-2: #1c2330; --border: #30363d;
  --text: #e6edf3; --muted: #8b949e; --accent: #3fb950; --accent-2: #58a6ff;
  --bad: #f85149; --warn: #d29922;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body { background: var(--bg); color: var(--text); font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
a { color: var(--accent-2); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 760px; margin: 0 auto; padding: 0 16px; }
header { border-bottom: 1px solid var(--border); }
nav { display: flex; justify-content: space-between; align-items: center; padding: 16px 0; }
.logo { font-family: ui-monospace, "Cascadia Code", Consolas, monospace; font-weight: 700; color: var(--text); }
.logo span { color: var(--accent); }
nav a.back { color: var(--muted); font-size: 15px; }
main { padding: 40px 0 64px; }
.kicker { font-family: ui-monospace, Consolas, monospace; color: var(--accent); font-size: 14px; margin-bottom: 8px; }
h1 { font-size: clamp(28px, 5vw, 38px); line-height: 1.2; margin-bottom: 8px; }
.lead { color: var(--muted); margin-bottom: 28px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 24px; }
.mono { font-family: ui-monospace, "Cascadia Code", Consolas, monospace; }
.btn { display: inline-block; padding: 10px 20px; border-radius: 6px; font: inherit; font-weight: 600; cursor: pointer; border: 1px solid var(--border); background: var(--surface-2); color: var(--text); }
.btn:hover { border-color: var(--muted); }
.btn:disabled { opacity: .5; cursor: default; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #0d1117; }
.btn-bad { background: var(--bad); border-color: var(--bad); color: #fff; }
.row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.stats { display: flex; gap: 24px; flex-wrap: wrap; margin-bottom: 16px; font-family: ui-monospace, Consolas, monospace; color: var(--muted); font-size: 14px; }
.stats b { color: var(--text); }
.good { color: var(--accent); }
.badtxt { color: var(--bad); }
.hidden { display: none !important; }
footer { border-top: 1px solid var(--border); padding: 24px 0; color: var(--muted); font-size: 14px; }