:root{
  --bg:#0f1115; --panel:#171a21; --line:#262b35; --text:#e6e9ef;
  --muted:#8a93a6; --accent:#1f6feb; --ok:#2ea043; --warn:#d29922; --off:#6e7681; --danger:#da3633;
}
*{box-sizing:border-box}
body{margin:0;font:14px/1.5 -apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text)}
.topbar{display:flex;align-items:center;justify-content:space-between;padding:14px 22px;border-bottom:1px solid var(--line);background:var(--panel)}
.brand{font-weight:700;font-size:16px;letter-spacing:.3px}
.brand span{color:var(--muted);font-weight:500;margin-left:6px}
.stats{display:flex;gap:18px;color:var(--muted);font-size:13px}
.stats b{color:var(--text)}
main{max-width:1000px;margin:24px auto;padding:0 22px;display:flex;flex-direction:column;gap:22px}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:10px;overflow:hidden}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 18px;border-bottom:1px solid var(--line)}
.panel-head h2{margin:0;font-size:15px}
.hint{color:var(--muted);font-size:12.5px}
.grid{width:100%;border-collapse:collapse}
.grid th,.grid td{text-align:left;padding:11px 18px;border-bottom:1px solid var(--line)}
.grid th{color:var(--muted);font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:.4px}
.grid tr:last-child td{border-bottom:none}
.right{text-align:right}
.muted{color:var(--muted)}
.pill{display:inline-block;padding:2px 9px;border-radius:999px;font-size:11.5px;background:#222733;border:1px solid var(--line)}
.pill.ok{color:#7ee2a8;border-color:#1f5132}
.pill.warn{color:#f0c674;border-color:#5a4a1f}
.pill.off{color:#aab1bd}
.btn{background:#222733;color:var(--text);border:1px solid var(--line);border-radius:7px;padding:8px 13px;cursor:pointer;font-size:13px}
.btn:hover{border-color:#3a4150}
.btn.sm{padding:5px 10px;font-size:12px;margin-left:6px}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}
.btn.danger{color:#ff7b72;border-color:#5a2422}
select{background:#222733;color:var(--text);border:1px solid var(--line);border-radius:7px;padding:6px 9px}
.modal{position:fixed;inset:0;background:rgba(0,0,0,.55);display:none;align-items:center;justify-content:center}
.modal.open{display:flex}
.modal-box{position:relative;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:26px;width:360px;max-width:92vw}
.modal-box h3{margin:0 0 14px}
.modal-box label{display:block;margin:12px 0;color:var(--muted);font-size:12.5px}
.modal-box input{display:block;width:100%;margin-top:5px;background:#0f1115;border:1px solid var(--line);border-radius:7px;padding:9px 11px;color:var(--text);font-size:14px}
.modal-close{position:absolute;top:12px;right:14px;background:none;border:none;color:var(--muted);font-size:22px;cursor:pointer;line-height:1}
.qr-wrap{display:flex;align-items:center;justify-content:center;min-height:240px;background:#fff;border-radius:8px;margin:10px 0}
.qr-wrap img{width:240px;height:240px}
.connected{color:var(--ok);font-size:20px;font-weight:600}
.spinner{width:34px;height:34px;border:3px solid #d0d7de;border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}