:root{--bg:#f5f6f8;--card:#fff;--ink:#1d2330;--muted:#6b7280;--line:#e3e6eb;--bad:#c62828;--badbg:#fdecea;--warn:#a15c00;--warnbg:#fff4e0;--ok:#2e7d32;--okbg:#e8f5e9;--accent:#2563eb}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.55 system-ui,-apple-system,"Apple SD Gothic Neo","Malgun Gothic",sans-serif}
main{max-width:1200px;margin:0 auto;padding:16px}
h1{font-size:1.4rem;margin:8px 0 16px}h2{font-size:1.1rem;margin:0 0 12px}h3{font-size:1rem;margin:12px 0 8px}
small,.muted{color:var(--muted);font-weight:400}.small{font-size:.85rem}
.top{display:flex;flex-wrap:wrap;align-items:center;gap:16px;background:#1d2330;color:#fff;padding:10px 16px}
.top a{color:#fff;text-decoration:none}.top .brand{font-weight:700}.top nav{display:flex;gap:14px;flex:1}
.top .logout{display:flex;gap:8px;align-items:center}.top button{background:#374151;color:#fff;border:0;border-radius:6px;padding:6px 10px;cursor:pointer}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:16px;margin-bottom:16px;overflow-x:auto}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:16px}.grid .card{margin-bottom:0}.grid{margin-bottom:16px}
.grid3{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:12px}
.server{border:1px solid var(--line);border-radius:8px;padding:12px}.server.stale{border-color:var(--bad);background:var(--badbg)}
.big{font-size:1.6rem;font-weight:700;margin:4px 0 8px}
table{border-collapse:collapse;width:100%}
.list th,.list td{border-bottom:1px solid var(--line);padding:6px 8px;text-align:left;vertical-align:top}.list th{background:#fafbfc;font-weight:600;white-space:nowrap}
.kv th{text-align:left;font-weight:500;color:var(--muted);padding:3px 8px 3px 0;white-space:nowrap;width:1%}.kv td{padding:3px 0}
.num{text-align:right;white-space:nowrap}
.badrow td{background:var(--badbg)}.warnrow td{background:var(--warnbg)}
.alerts{list-style:none;margin:0;padding:0}.alerts li{padding:8px 10px;border-radius:6px;margin:4px 0}
.alerts .bad{background:var(--badbg)}.alerts .warn{background:var(--warnbg)}.alerts .info{background:#eef2ff}
.alerts b{margin-right:6px}.ok{color:var(--ok)}.badge{background:#1d2330;color:#fff;border-radius:10px;padding:0 8px;font-size:.85rem}
.tag{display:inline-block;border-radius:4px;padding:0 6px;margin:0 4px 4px 0;font-size:.82rem}.okt{background:var(--okbg);color:var(--ok)}.badt{background:var(--badbg);color:var(--bad)}
.bars td{padding:3px 6px}.bars th{text-align:left;font-weight:500;white-space:nowrap;width:1%}
.bar,.meter{display:inline-block;height:12px;background:var(--accent);border-radius:3px;vertical-align:middle;width:0}
.meter{background:#64748b;max-width:120px}
.login{max-width:420px;margin:8vh auto;background:var(--card);border:1px solid var(--line);border-radius:10px;padding:24px}.login.wide{max-width:560px}
label{display:block;margin:10px 0;font-weight:500}input{display:block;width:100%;margin-top:4px;padding:9px 10px;border:1px solid #cbd2d9;border-radius:6px;font-size:15px}
input.short{width:70px;display:inline-block;margin:0 4px 0 0}
button,.btn{background:var(--accent);color:#fff;border:0;border-radius:6px;padding:9px 16px;font-size:15px;cursor:pointer;text-decoration:none;display:inline-block}
form.inline{display:inline-flex;align-items:center;gap:4px;margin:2px}form.inline button{padding:5px 10px;font-size:14px}
form.stack{max-width:480px}
.err{background:var(--badbg);color:var(--bad);padding:10px;border-radius:6px}.okmsg{background:var(--okbg);color:var(--ok);padding:10px;border-radius:6px}
.secret{font:600 1.25rem/1.6 ui-monospace,Consolas,monospace;background:#f1f5f9;padding:12px;border-radius:6px;letter-spacing:1px;word-break:break-all}
.codes{font:600 1.1rem ui-monospace,Consolas,monospace;columns:2}
.qr{text-align:center;margin:14px 0}.qr svg{border:1px solid var(--line);border-radius:6px;max-width:100%;height:auto;background:#fff}