:root{color-scheme:dark;--app:#0b0b0c;--surface:#161618;--text:#ece8e1;--dim:#9c968d;--line:rgba(255,255,255,.1);--accent:#f0a35e;--primary:#ece8e1;--on-primary:#0f0f10;--ok:#a9cba5;--bad:#f08a7e}
@media (prefers-color-scheme:light){:root{color-scheme:light;--app:#f3efe8;--surface:#fff;--text:#1c1a17;--dim:#6b655c;--line:rgba(28,26,23,.14);--accent:#b4561a;--primary:#1c1a17;--on-primary:#fff;--ok:#4d7a48;--bad:#b3261e}}
*{box-sizing:border-box}body{margin:0;background:var(--app);color:var(--text);font:400 16px/1.55 Inter,system-ui,sans-serif}
a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}
header.top{display:flex;align-items:center;justify-content:space-between;max-width:640px;margin:0 auto;padding:20px}
.brand{color:var(--text);font-weight:600}.brand span{color:var(--dim);font-weight:400}.home{color:var(--dim);font-size:14px}
main{max-width:640px;margin:0 auto;padding:8px 20px 64px}h1{font-size:30px;margin:12px 0 20px}h2{font-size:20px;margin:28px 0 12px}h3{margin:0 0 6px;font-size:17px}
.lead{color:var(--dim)}form{display:grid;gap:12px;margin:12px 0}label{display:grid;gap:4px;font-size:14px;color:var(--dim)}
input{font:inherit;color:var(--text);background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:9px 11px}
.pair{display:grid;grid-template-columns:1fr 1fr;gap:12px}@media (max-width:480px){.pair{grid-template-columns:1fr}}
button{font:inherit;font-weight:600;border:0;border-radius:8px;padding:10px 16px;background:var(--primary);color:var(--on-primary);cursor:pointer;justify-self:start}
button.quiet{background:transparent;color:var(--text);border:1px solid var(--line);font-weight:400;padding:6px 12px}button.danger{background:var(--bad);color:#fff}button:disabled{opacity:.5;cursor:default}
.notice{padding:10px 12px;border-radius:8px;border:1px solid var(--line)}.notice.error{color:var(--bad)}.notice.ok{color:var(--ok)}
.links,.hint{font-size:14px;color:var(--dim)}.card{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:16px 18px;margin:12px 0}.card h2{margin-top:0}
.devices{list-style:none;padding:0;margin:8px 0}.devices li{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:6px 0;border-top:1px solid var(--line)}.devices form{margin:0}
details{margin:8px 0}summary{cursor:pointer;color:var(--accent)}