:root{--bg:#f6f7f9;--card:#fff;--fg:#1c2330;--mut:#5d6878;--line:#dde2e8;--ok:#1f8a4c;--warn:#b26a00;--bad:#c62828;--acc:#1e5fa8;color-scheme:light}
@media (prefers-color-scheme:dark){:root{--bg:#12161c;--card:#1b2129;--fg:#e6eaf0;--mut:#9aa5b4;--line:#2c3540;--ok:#4cc27e;--warn:#e9a23b;--bad:#ef5350;--acc:#6ea8fe;color-scheme:dark}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font:15px/1.45 system-ui,-apple-system,Segoe UI,Roboto,sans-serif}
header{display:flex;flex-wrap:wrap;gap:.5rem 1rem;align-items:center;justify-content:space-between;padding:.8rem 1rem;background:var(--card);border-bottom:1px solid var(--line)}
header b{font-size:1.05rem}header nav a,header nav button{margin-left:.8rem}
main{max-width:1100px;margin:0 auto;padding:1rem}
a{color:var(--acc)}.mut{color:var(--mut)}.small{font-size:.85rem}
.grid{display:grid;gap:1rem;grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:1rem}
.card h2{margin:.1rem 0 .7rem;font-size:1rem}
.banner{border-radius:10px;padding:1rem 1.2rem;margin-bottom:1rem;color:#fff;display:flex;flex-wrap:wrap;gap:.5rem 1.5rem;align-items:center}
.banner .big{font-size:1.5rem;font-weight:700;letter-spacing:.02em}
.b-ok{background:var(--ok)}.b-warn{background:var(--warn)}.b-bad{background:var(--bad)}
.pill{display:inline-block;padding:.05rem .55rem;border-radius:99px;font-size:.8rem;font-weight:600;border:1px solid currentColor}
.ok{color:var(--ok)}.warn{color:var(--warn)}.bad{color:var(--bad)}
table{width:100%;border-collapse:collapse}td,th{text-align:left;padding:.3rem .4rem;border-bottom:1px solid var(--line);vertical-align:top}
th{font-weight:600;color:var(--mut);font-size:.85rem}
.tbl{overflow-x:auto}
button,.btn{font:inherit;padding:.5rem .9rem;border-radius:8px;border:1px solid var(--line);background:var(--card);color:var(--fg);cursor:pointer}
button.primary{background:var(--acc);border-color:var(--acc);color:#fff}button.danger{background:var(--bad);border-color:var(--bad);color:#fff}
button.armed{outline:3px solid var(--warn)}button:disabled{opacity:.5;cursor:not-allowed}
.row{display:flex;flex-wrap:wrap;gap:.6rem;align-items:center}
input,select{font:inherit;padding:.5rem;border:1px solid var(--line);border-radius:8px;background:var(--bg);color:var(--fg);width:100%}
label{display:block;margin:.6rem 0 .2rem;font-weight:600;font-size:.9rem}
.narrow{max-width:420px;margin:3rem auto}
.err{color:var(--bad);margin:.5rem 0}.note{color:var(--ok);margin:.5rem 0}
.kv{display:grid;grid-template-columns:auto 1fr;gap:.2rem .8rem}.kv div:nth-child(odd){color:var(--mut)}
svg.chart{width:100%;height:200px;display:block}
.qr svg{width:220px;height:220px;background:#fff;padding:8px;border-radius:8px}
code{background:var(--bg);padding:.1rem .3rem;border-radius:4px;word-break:break-all}