:root{color-scheme:light;--ink:#253b42;--muted:#687c80;--line:#d7e2df;--accent:#236b68}*{box-sizing:border-box}body{margin:0;background:#f2f6f3;color:var(--ink);font:16px/1.65 system-ui,-apple-system,sans-serif}main{max-width:900px;margin:44px auto;padding:0 22px}header{margin-bottom:28px}h1{font-size:30px;line-height:1.3}h2{font-size:20px;margin:0 0 18px}.eyebrow{font:12px ui-monospace,monospace;letter-spacing:.16em;color:var(--accent)}section{background:white;border:1px solid var(--line);border-radius:16px;padding:26px;margin:22px 0}form{max-width:440px}label{display:block;font-weight:600;margin:18px 0}input{display:block;width:100%;padding:12px;margin:7px 0;border:1px solid #9bb6b2;border-radius:8px;font:inherit}input:focus{outline:2px solid var(--accent);outline-offset:2px}.check{display:flex;gap:10px;align-items:center;font-weight:400}.check input{width:18px;height:18px}button{background:var(--accent);color:white;border:1px solid var(--accent);border-radius:8px;padding:10px 18px;font:inherit;cursor:pointer}button:disabled{opacity:.6;cursor:wait}.secondary{color:var(--accent);background:white}.danger{color:#934039;background:#fff8f6;border-color:#dbb5af}a{color:var(--accent)}nav,.heading{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}.heading h2{margin:0}.muted,footer{color:var(--muted);font-size:14px}.device{padding:20px 0;border-top:1px solid var(--line);display:flex;gap:20px;justify-content:space-between;align-items:center}.device p{margin:3px 0}.tag{display:inline-block;font-size:12px;background:#e2f1ec;border-radius:6px;padding:1px 7px;margin-left:8px}#message:not(:empty){padding:14px 18px;background:#fff4db;border:1px solid #e6d4a7;border-radius:8px}footer{margin:30px 0}[hidden]{display:none!important}@media(max-width:560px){main{margin:24px auto}section{padding:20px}.device{align-items:flex-start;flex-direction:column}button{min-height:44px}}