:root{color-scheme:dark;--bg:#0b1020;--panel:#171f35;--line:#374363;--text:#f8fafc;--muted:#b2c0da;--accent:#8ee5cf}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.6 system-ui,sans-serif}main{max-width:980px;margin:60px auto;padding:0 20px}nav{display:flex;gap:20px;padding:20px;border-bottom:1px solid var(--line);flex-wrap:wrap}a{color:var(--accent)}h1{font-size:clamp(30px,5vw,48px);line-height:1.1}section,.item{background:var(--panel);padding:24px;border:1px solid var(--line);border-radius:16px;margin:16px 0}label{display:block;margin-bottom:8px}input,textarea,button{font:inherit;padding:12px 14px;border-radius:9px}input,textarea{width:100%;color:white;background:#0d1528;border:1px solid var(--line)}button{background:var(--accent);color:#09111e;border:0;cursor:pointer;font-weight:700}button:disabled{opacity:.5}small,.muted{color:var(--muted)}[hidden]{display:none!important}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(270px,1fr));gap:12px}.grid .item{margin:0}#status{margin:18px 0}pre{white-space:pre-wrap;overflow-wrap:anywhere}button+button{margin-left:10px}