:root {
  --bg: #070b14; --panel: #0d1424; --line: #1e2a44; --text: #e6edf8; --muted: #8b9bb8;
  --accent: #00e5ff; --ok: #3ddc97; --warn: #ffb547; --danger: #ff4d6d;
  color-scheme: dark;
  font-family: "Segoe UI Variable", "Segoe UI", system-ui, -apple-system, Roboto, sans-serif;
  color: var(--text);
}
* { box-sizing: border-box; }
body { margin: 0; background: radial-gradient(circle at 50% -10%, rgba(0, 229, 255, .12), transparent 55%), var(--bg); line-height: 1.55; }
main, .hero, footer { max-width: 1000px; margin: 0 auto; padding: 0 16px; }
.hero { text-align: center; padding-top: 48px; padding-bottom: 24px; }
.hero h1 { font-size: clamp(32px, 6vw, 48px); letter-spacing: .25em; margin: 12px 0 4px; color: var(--accent); }
.hero p { max-width: 640px; margin: 8px auto; }
.muted { color: var(--muted); }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 20px; }
.card.recommended { border-color: var(--accent); box-shadow: 0 0 0 1px rgba(0, 229, 255, .3); }
.card h2 { margin: 0 0 4px; }
.req { color: var(--muted); margin: 0 0 12px; }
.facts { display: grid; grid-template-columns: auto 1fr; gap: 4px 12px; margin: 0 0 16px; font-size: 14px; }
.facts dt { color: var(--muted); }
.facts dd { margin: 0; word-break: break-all; }
.btn { display: inline-block; background: #121b30; border: 1px solid var(--line); color: var(--text); border-radius: 9px; padding: 10px 16px; font: inherit; cursor: pointer; text-decoration: none; }
.btn:hover:not(:disabled) { border-color: var(--accent); }
.btn:disabled { opacity: .5; cursor: default; }
.btn.primary { background: var(--accent); color: #001018; border-color: var(--accent); font-weight: 600; width: 100%; }
.btn.small { padding: 4px 10px; font-size: 13px; }
.status { min-height: 1.4em; font-size: 14px; margin: 10px 0 4px; }
.status.ok { color: var(--ok); } .status.error { color: var(--danger); } .status.warn { color: var(--warn); } .status.loading { color: var(--accent); }
code { font-family: "Cascadia Code", Consolas, monospace; font-size: 12.5px; word-break: break-all; background: rgba(255, 255, 255, .06); padding: 1px 5px; border-radius: 4px; }
details summary { cursor: pointer; color: var(--muted); font-size: 13px; }
.row-actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin: 20px 0; }
.guide { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 8px 22px 16px; margin-bottom: 32px; }
.cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.guide li { margin-bottom: 6px; }
footer { padding-bottom: 32px; font-size: 13px; text-align: center; }