:root{--blue:#1f6fb2;--gold:#e9a23b;--on-gold:#2a1a05;--ink:#1d232e;--soft:#4a5263;--mist:#d8ddef;--card:#fff;--bg:#f4f6fb;--danger:#c4373c;--ok:#2f8f6f}@media (prefers-color-scheme:dark){:root{--ink:#e7eaf3;--soft:#a0a4b8;--mist:#2b3242;--card:#171c26;--bg:#0f131a;--blue:#6aa7dd;--danger:#ef6b70;--ok:#5fcfa6}}*{box-sizing:border-box}html,body{margin:0}body{background:var(--bg);color:var(--ink);flex-direction:column;min-height:100vh;font:16px/1.6 Segoe UI,system-ui,-apple-system,sans-serif;display:flex}a{color:var(--blue)}.top{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;width:100%;max-width:760px;margin:0 auto;padding:14px 20px;display:flex}.brand{color:var(--ink);align-items:center;gap:8px;font-size:18px;font-weight:700;text-decoration:none;display:flex}.top nav{gap:16px;font-size:14.5px;display:flex}.top nav a{color:var(--soft);text-decoration:none}.top nav a:hover{color:var(--ink)}main{flex:1;width:100%;max-width:760px;margin:0 auto;padding:12px 16px 48px}footer{text-align:center;color:var(--soft);padding:20px;font-size:13px}footer a{color:var(--soft)}.card{background:var(--card);border:1px solid var(--mist);border-radius:16px;margin-top:16px;padding:clamp(20px,4vw,32px)}h1{margin:0 0 8px;font-size:clamp(24px,4vw,30px);line-height:1.2}h2{margin:0 0 8px;font-size:19px}p{margin:0 0 14px}.muted{color:var(--soft);font-size:14px}label{margin:14px 0 6px;font-size:14px;font-weight:600;display:block}input,select,textarea{width:100%;font:inherit;color:var(--ink);background:var(--bg);border:1px solid var(--mist);border-radius:10px;padding:10px 12px}textarea{resize:vertical;min-height:140px}input:focus,select:focus,textarea:focus{outline:2px solid var(--blue);outline-offset:1px}.btn{font:inherit;cursor:pointer;background:var(--gold);color:var(--on-gold);border:0;border-radius:10px;justify-content:center;align-items:center;gap:8px;padding:11px 18px;font-weight:700;text-decoration:none;display:inline-flex}.btn.secondary{background:var(--mist);color:var(--ink)}.btn.danger{color:var(--danger);border:1px solid var(--danger);background:0 0;padding:7px 12px;font-size:14px}.btn:disabled{opacity:.6;cursor:default}.row{flex-wrap:wrap;align-items:center;gap:10px;margin-top:16px;display:flex}.notice{background:var(--bg);border:1px solid var(--mist);border-radius:10px;margin:14px 0;padding:12px 14px}.notice.ok{border-color:var(--ok)}.notice.error{border-color:var(--danger)}.key{letter-spacing:1px;background:var(--bg);border:1px dashed var(--mist);word-break:break-all;border-radius:10px;padding:14px 16px;font:700 clamp(16px,4vw,22px) Consolas,ui-monospace,monospace}.devices{margin:12px 0 0;padding:0;list-style:none}.devices li{border-top:1px solid var(--mist);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;padding:12px 0;display:flex}.devices li:first-child{border-top:0}.license-head{flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:12px;display:flex}.pill{background:var(--mist);border-radius:999px;padding:2px 9px;font-size:12px;font-weight:700}.pill.ok{color:var(--ok);background:#45b69c33}.pill.bad{color:var(--danger);background:#c4373c22}.hp{position:absolute;left:-9999px}