:root{--bg:#0b0f14;--panel:#141b24;--line:#233041;--txt:#e6edf3;--mut:#8b9bb0;--acc:#2f81f7;--ok:#2ea043;--bad:#f85149}
*{box-sizing:border-box}
html,body{margin:0;height:100%;background:var(--bg);color:var(--txt);font:15px system-ui,-apple-system,Segoe UI,Roboto,sans-serif}
.hidden{display:none!important}
.muted{color:var(--mut)}
.err{color:var(--bad);min-height:1.2em;margin:.4em 0 0}
.logo{display:inline-block;font-weight:800;letter-spacing:2px;font-size:34px;color:#fff;background:linear-gradient(135deg,#2f81f7,#a371f7);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.logo.sm{font-size:20px}
.login{min-height:100%;display:grid;place-items:center;padding:16px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:28px;width:100%;max-width:340px;display:flex;flex-direction:column;gap:10px;text-align:center}
.card p{margin:0}
input,select,textarea{background:#0d131b;color:var(--txt);border:1px solid var(--line);border-radius:8px;padding:10px 12px;font:inherit;width:100%}
select{width:auto}
.btn{background:#1b2531;color:var(--txt);border:1px solid var(--line);border-radius:8px;padding:8px 12px;font:inherit;cursor:pointer}
.btn:hover{border-color:var(--acc)}
.btn.primary{background:var(--acc);border-color:var(--acc);color:#fff;padding:11px}
.btn.danger{color:var(--bad)}
header{display:flex;align-items:center;gap:8px;padding:8px 12px;padding-top:max(8px,env(safe-area-inset-top));background:var(--panel);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
.brand{display:flex;align-items:center;gap:8px;font-weight:600}
.spacer{flex:1}
main{display:grid;gap:8px;padding:8px;grid-template-columns:repeat(auto-fit,minmax(min(100%,420px),1fr))}
main.l1{grid-template-columns:1fr}
main.l2{grid-template-columns:repeat(2,1fr)}
main.l3{grid-template-columns:repeat(3,1fr)}
.tile{position:relative;background:#000;border:1px solid var(--line);border-radius:10px;overflow:hidden;aspect-ratio:16/9}
.tile video{width:100%;height:100%;object-fit:contain;background:#000;display:block}
.tile .bar{position:absolute;left:0;right:0;top:0;display:flex;align-items:center;gap:6px;padding:6px 8px;background:linear-gradient(#000a,#0000);font-size:13px;pointer-events:none}
.tile .dot{width:9px;height:9px;border-radius:50%;background:var(--mut)}
.tile.live .dot{background:var(--bad);animation:b 1.4s infinite}
@keyframes b{50%{opacity:.3}}
.tile .acts{margin-left:auto;display:flex;gap:4px;pointer-events:auto}
.tile .acts button{background:#0008;color:#fff;border:0;border-radius:6px;padding:3px 8px;cursor:pointer}
.tile .msg{position:absolute;inset:0;display:grid;place-items:center;text-align:center;padding:12px;color:var(--mut);font-size:13px;pointer-events:none}
.tile.live .msg{display:none}
.tile:fullscreen{border-radius:0;aspect-ratio:auto}
.empty{text-align:center;padding:60px 16px}
dialog{background:var(--panel);color:var(--txt);border:1px solid var(--line);border-radius:14px;padding:16px;width:min(560px,94vw);max-height:90vh;overflow:auto}
dialog::backdrop{background:#000a}
.dlghead{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
.row{display:flex;gap:8px;align-items:center;margin:6px 0;flex-wrap:wrap}
.row>label{width:100%;font-size:12px;color:var(--mut);margin-bottom:-4px}
.list .item{display:flex;align-items:center;gap:8px;padding:8px 0;border-bottom:1px solid var(--line)}
.list .item span{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
h4{margin:16px 0 4px}
.hint{font-size:12px;color:var(--mut);line-height:1.5}
@media(max-width:600px){.hide-sm{display:none}main.l2,main.l3{grid-template-columns:1fr}}

.acts button.on{background:#f85149!important}