:root{color-scheme:light;--cream:#fffaf0;--ink:#241f19;--gold:#efb929;--muted:#70695e;--line:#e3dbcd;--bad:#a12828;--ok:#246143}*{box-sizing:border-box}body{margin:0;background:var(--cream);color:var(--ink);font:16px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}.top{background:#fff;border-bottom:1px solid var(--line)}.brand{max-width:940px;margin:auto;padding:15px 24px;display:flex;gap:15px;align-items:center}.brand img{width:58px;height:58px;object-fit:contain}.brand h1{font-size:20px;margin:0;line-height:1.3}.brand h1 span{font-size:13px;color:var(--muted)}.brand p{font-size:13px;color:var(--muted);margin:3px 0 0}main{padding:28px 20px;max-width:680px;margin:auto}.panel{border:1px solid var(--line);background:white;padding:28px;border-radius:20px;box-shadow:0 7px 23px #1911030a;margin:20px auto}.panel[hidden]{display:none}.panel h2{font-size:23px;line-height:1.3;margin:0 0 15px}.panel p{color:var(--muted)}form{margin-top:20px;display:grid;gap:12px}label,.label{font-weight:650}input{width:100%;border:1px solid #cfc6bb;border-radius:10px;padding:13px;font-size:16px;background:#fff;color:var(--ink)}input:focus{outline:2px solid var(--gold)}button{background:var(--ink);border:0;color:white;font-size:16px;font-weight:650;border-radius:11px;padding:13px 16px;cursor:pointer}button:disabled{opacity:.55;cursor:wait}.secondary{background:#f4eee5;color:var(--ink);border:1px solid var(--line)}.small{font-size:13px}.readonly{word-break:break-all;font:14px/1.5 ui-monospace,monospace;background:var(--cream);padding:12px;border-radius:9px;margin:8px 0}#message:not(:empty){border-radius:12px;padding:13px 17px;background:#fff3df;border:1px solid #e9ce91;color:#745315}#message.ok{background:#e7f3e9;border-color:#a7d4ae;color:var(--ok)}#message.err{background:#fff0ef;border-color:#edb4aa;color:var(--bad)}footer{text-align:center;font-size:12px;color:var(--muted);margin:26px auto}@media(max-width:600px){.brand{padding:12px}.panel{padding:20px}}