:root{--bg:#06090f;--card:#0b0f16;--fg:#e6edf6;--mu:#a3adc8;--ac:#ff4757;--bd:#1a2342}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.55 system-ui,sans-serif;padding:16px}
main{max-width:980px;margin:0 auto}a{color:#ff6b78}
.k{font:700 11px/1.2 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.22em;text-transform:uppercase;color:var(--ac);margin:12px 0 8px}
h1{font-size:clamp(26px,4vw,38px);line-height:1.15;margin:0 0 10px}.sub{color:var(--mu);margin:0 0 18px;max-width:760px}
.tabs{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 12px}.tabs button{background:transparent;color:var(--mu);border:1px solid var(--bd);
border-radius:999px;padding:9px 14px;font-weight:700;cursor:pointer}.tabs button[aria-selected=true]{background:var(--ac);color:#fff;border-color:var(--ac)}
.panel{background:var(--card);border:1px solid var(--bd);border-radius:14px;padding:18px}.panel h2{margin:0 0 6px;font-size:20px}
.panel p{color:var(--mu);margin:0 0 12px;font-size:14.5px}
textarea{width:100%;box-sizing:border-box;min-height:200px;resize:vertical;background:#05070b;color:var(--fg);border:1px solid var(--bd);
border-radius:10px;padding:12px;font:13px/1.5 ui-monospace,SFMono-Regular,Menlo,monospace}
.row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin:12px 0 0}
.b{background:var(--ac);color:#fff;border:0;border-radius:8px;padding:11px 18px;font-weight:700;cursor:pointer;font-size:15px}
.b.s{background:transparent;border:1px solid #2a3550;color:#c7cddb}.b:disabled{opacity:.5;cursor:wait}
select{background:#05070b;color:var(--fg);border:1px solid #2a3550;border-radius:8px;padding:9px}
.st{font:600 13px ui-monospace,monospace;color:var(--mu);margin:10px 0 0}
.out{margin:14px 0 0;font-size:14px}.out ul{padding-left:18px;margin:8px 0 0}.out li{margin:6px 0}
.out code,.out pre{color:#7dd3fc;font:12.5px/1.5 ui-monospace,monospace;overflow-wrap:anywhere;white-space:pre-wrap}
.g{font:800 15px ui-monospace,monospace;letter-spacing:.06em}.STUB,.BIG,.FAIL{color:#ff6b78}.PARTIAL,.HARDENING{color:#f5a524}.REAL,.PASS{color:#22c55e}
.sev{font:700 11px ui-monospace,monospace;letter-spacing:.08em;margin-right:6px}
.note{color:var(--mu);font-size:13.5px;margin:18px 0 0}