:root{--bg:#f4f5f7;--card:#fff;--text:#1c2330;--muted:#6b7587;--line:#e1e5ec;--accent:#2563eb;--accent-t:#fff;--ok:#16a34a;--bad:#dc2626;--warn:#d97706;--chip:#eef1f6}
@media (prefers-color-scheme:dark){:root{--bg:#10141b;--card:#1a2029;--text:#e6eaf1;--muted:#8d97a8;--line:#2a323f;--accent:#4c8dff;--accent-t:#0b1020;--ok:#34d399;--bad:#f87171;--warn:#fbbf24;--chip:#232b37}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font:15px/1.45 system-ui,-apple-system,Segoe UI,Roboto,sans-serif}
h1,h2,h3{margin:0 0 .5em}h2{font-size:1.15rem}h3{font-size:1rem}
header{position:sticky;top:0;z-index:5;background:var(--card);border-bottom:1px solid var(--line);display:flex;align-items:center;gap:12px;padding:8px 16px;flex-wrap:wrap}
header .brand{font-weight:700;margin-right:8px}
nav{display:flex;gap:4px;flex-wrap:wrap;flex:1}
nav button{background:none;border:0;color:var(--muted);padding:8px 12px;border-radius:8px;cursor:pointer;font:inherit}
nav button.on{background:var(--chip);color:var(--text);font-weight:600}
main{max-width:1200px;margin:0 auto;padding:16px}
.userbox{color:var(--muted);font-size:.9rem;display:flex;gap:8px;align-items:center}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:12px}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px}
.card.alarm{border-color:var(--bad);box-shadow:0 0 0 2px var(--bad)}
.card.off{opacity:.65}
.card .top{display:flex;align-items:center;gap:8px;margin-bottom:8px}
.card .top .name{font-weight:600;flex:1;overflow:hidden;text-overflow:ellipsis}
.dot{width:10px;height:10px;border-radius:50%;background:var(--bad);flex:none}.dot.on{background:var(--ok)}
.sub{color:var(--muted);font-size:.85rem}
.metrics{display:flex;flex-wrap:wrap;gap:6px;margin:6px 0}
.chip{background:var(--chip);border-radius:8px;padding:3px 8px;font-size:.85rem}.chip b{font-weight:600}
.chip.bad{background:var(--bad);color:#fff}
.controls{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px;align-items:center}
.room{margin:20px 0 8px;color:var(--muted);font-weight:600;text-transform:uppercase;font-size:.78rem;letter-spacing:.06em}
button,select,input,textarea{font:inherit;color:var(--text)}
input,select,textarea{background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:7px 9px;max-width:100%}
textarea{width:100%;min-height:90px;font-family:ui-monospace,monospace;font-size:.85rem}
.btn{background:var(--accent);color:var(--accent-t);border:0;border-radius:8px;padding:8px 14px;cursor:pointer;font-weight:600}
.btn.sec{background:var(--chip);color:var(--text)}.btn.danger{background:var(--bad);color:#fff}.btn.small{padding:4px 10px;font-size:.85rem}
.btn:disabled{opacity:.5;cursor:default}
.switch{position:relative;width:48px;height:26px;border-radius:13px;background:var(--line);border:0;cursor:pointer;padding:0}
.switch::after{content:"";position:absolute;top:3px;left:3px;width:20px;height:20px;border-radius:50%;background:#fff;transition:left .15s}
.switch.on{background:var(--ok)}.switch.on::after{left:25px}
.stepper{display:flex;align-items:center;gap:6px}.stepper span{min-width:64px;text-align:center;font-weight:600}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:end;margin:8px 0}
label.f{display:flex;flex-direction:column;gap:3px;font-size:.85rem;color:var(--muted)}
label.f.wide{flex:1;min-width:220px}label.f input,label.f select{color:var(--text)}
label.chk{display:flex;gap:6px;align-items:center}
table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:8px 6px;border-bottom:1px solid var(--line);vertical-align:middle}th{color:var(--muted);font-weight:600;font-size:.82rem}
.tablewrap{overflow-x:auto}
.banner{padding:10px 14px;border-radius:10px;margin-bottom:12px}
.banner.bad{background:var(--bad);color:#fff}.banner.warn{background:var(--warn);color:#000}.banner.ok{background:var(--chip)}
.msg{margin:8px 0;padding:8px 12px;border-radius:8px;background:var(--chip)}.msg.err{background:var(--bad);color:#fff}.msg.ok{background:var(--ok);color:#fff}
.tabs{display:flex;gap:4px;flex-wrap:wrap;margin-bottom:14px}.tabs button{background:var(--chip);border:0;color:var(--text);padding:6px 12px;border-radius:8px;cursor:pointer}.tabs button.on{background:var(--accent);color:var(--accent-t)}
.login{max-width:360px;margin:12vh auto;padding:0 16px}
.login .card{display:flex;flex-direction:column;gap:12px}
.chartbox{position:relative;height:340px}
.sev-critical{color:var(--bad);font-weight:600}.sev-warning{color:var(--warn);font-weight:600}
@media (max-width:600px){main{padding:10px}header{padding:6px 10px}}
.thumb{width:100%;border-radius:8px;background:#000;min-height:120px;display:block;object-fit:contain}.thumb.bad{opacity:.3}
.bigview{margin-bottom:14px}.bigimg{width:100%;max-height:75vh;object-fit:contain;background:#000;border-radius:10px}
.player{width:100%;max-height:58vh;background:#000;border-radius:10px;margin:8px 0}
.ptz{margin-top:10px}.ptzgrid{display:grid;grid-template-columns:repeat(3,64px);gap:6px;margin-bottom:8px;align-items:center;justify-items:center}
.ptzb{min-width:64px;min-height:44px;touch-action:none;user-select:none}
.chip.warnc{background:var(--warn);color:#000}
.clipbtn.on{background:var(--accent);color:var(--accent-t)}
.timeline{position:relative;height:44px;background:var(--chip);border-radius:8px;margin:10px 0 22px;cursor:pointer;overflow:visible}
.tl-seg{position:absolute;top:0;bottom:0;background:var(--ok);opacity:.75}
.tl-hour{position:absolute;top:46px;font-size:.72rem;color:var(--muted);transform:translateX(-50%);pointer-events:none}
.tl-marker{position:absolute;top:-4px;bottom:-4px;width:3px;margin-left:-1px;background:var(--bad);pointer-events:none}
.tl-hover{display:none;position:absolute;top:-24px;transform:translateX(-50%);background:var(--text);color:var(--bg);font-size:.75rem;padding:1px 6px;border-radius:4px;pointer-events:none}
.vwrap{position:relative}.vclock{position:absolute;top:14px;left:14px;background:rgba(0,0,0,.65);color:#fff;font:600 1.05rem ui-monospace,monospace;padding:4px 10px;border-radius:6px;pointer-events:none}.vclock:empty{display:none}