:root {
  --bg: #0b0e13; --panel: #141a22; --panel2: #1b2330; --line: #263040;
  --txt: #e8edf4; --mut: #8695a8; --accent: #38bdf8; --live: #22c55e;
  --lan: #f59e0b; --off: #475569; --radius: 12px;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--txt);
  font: 14px/1.4 "Segoe UI", system-ui, sans-serif;
}
.brand { font-weight: 800; letter-spacing: 2px; color: var(--accent); }

/* ---- login ---- */
.login-body { display: grid; place-items: center; min-height: 100vh;
  background: radial-gradient(1200px 600px at 50% -10%, #16202e, var(--bg)); }
.login-card { width: min(360px, 90vw); background: var(--panel); padding: 32px;
  border: 1px solid var(--line); border-radius: 16px; display: grid; gap: 14px;
  box-shadow: 0 20px 60px rgba(0,0,0,.5); }
.login-card h1 { margin: 6px 0 0; font-size: 24px; }
.login-card .sub { margin: 0 0 8px; color: var(--mut); }
.login-card label { display: grid; gap: 6px; font-size: 12px; color: var(--mut); }
.login-card input { padding: 11px 12px; background: var(--panel2); border: 1px solid var(--line);
  border-radius: 10px; color: var(--txt); font-size: 15px; }
.login-card button { margin-top: 6px; padding: 12px; border: 0; border-radius: 10px;
  background: var(--accent); color: #042; font-weight: 700; font-size: 15px; cursor: pointer; }
.err { background: #3b1d1d; color: #fca5a5; padding: 9px 12px; border-radius: 9px; font-size: 13px; }

/* ---- topbar ---- */
.topbar { position: sticky; top: 0; z-index: 20; display: flex; align-items: center;
  gap: 18px; padding: 10px 16px; background: var(--panel); border-bottom: 1px solid var(--line); }
.topbar .left { display: flex; align-items: baseline; gap: 10px; }
.topbar .title { font-weight: 600; }
.stats { display: flex; gap: 8px; flex: 1; }
.chip { background: var(--panel2); border: 1px solid var(--line); border-radius: 999px;
  padding: 4px 11px; color: var(--mut); font-size: 12px; }
.chip b { color: var(--txt); }
.chip.live b { color: var(--live); }
.right { display: flex; align-items: center; gap: 12px; }
#search { padding: 8px 12px; background: var(--panel2); border: 1px solid var(--line);
  border-radius: 9px; color: var(--txt); width: 180px; }
.toggle { color: var(--mut); font-size: 12px; display: flex; align-items: center; gap: 5px; cursor: pointer; }
#reload { background: var(--panel2); border: 1px solid var(--line); color: var(--txt);
  width: 34px; height: 34px; border-radius: 9px; cursor: pointer; font-size: 16px; }
.who { color: var(--mut); font-size: 12px; }
.logout { color: var(--accent); text-decoration: none; font-size: 13px; }

/* ---- wall ---- */
main { padding: 16px; }
.branch { margin-bottom: 26px; }
.branch h2 { font-size: 15px; margin: 0 0 10px; color: var(--txt); display: flex; align-items: center; gap: 8px; }
.branch .count { background: var(--panel2); color: var(--mut); border-radius: 999px;
  padding: 1px 9px; font-size: 12px; font-weight: 500; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; }

.cam { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; }
.cam .frame { position: relative; aspect-ratio: 16/9; background: #05070a;
  display: grid; place-items: center; }
.cam video { width: 100%; height: 100%; object-fit: cover; display: block; background: #05070a; }
.cam .play { position: absolute; inset: 0; margin: auto; width: fit-content; height: fit-content;
  background: rgba(10,14,20,.55); border: 1px solid var(--line); color: var(--txt);
  padding: 8px 16px; border-radius: 999px; cursor: pointer; font-size: 13px; }
.cam.playing .play { display: none; }
.cam .badge { color: var(--mut); font-size: 12px; padding: 4px 10px; border: 1px dashed var(--line);
  border-radius: 8px; }
.cam .dot { position: absolute; top: 8px; left: 8px; width: 9px; height: 9px; border-radius: 50%; }
.cam .dot.on { background: var(--live); box-shadow: 0 0 8px var(--live); }
.cam .dot.lan { background: var(--lan); }
.cam .dot.off { background: var(--off); }
.cam .src { position: absolute; top: 6px; right: 8px; font-size: 10px; text-transform: uppercase;
  letter-spacing: .5px; color: var(--mut); background: rgba(10,14,20,.6); padding: 1px 6px; border-radius: 6px; }
.cam .meta { display: flex; justify-content: space-between; align-items: center; gap: 8px; padding: 8px 10px; }
.cam .name { font-size: 13px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.cam .ip { color: var(--mut); font-size: 11px; font-variant-numeric: tabular-nums; }
.cam.offline { opacity: .72; }

/* ---- viewer ---- */
.viewer { position: fixed; inset: 0; z-index: 50; background: rgba(3,5,8,.92);
  display: grid; place-items: center; }
.viewer.hidden { display: none; }
.viewer video { width: min(92vw, 1280px); max-height: 86vh; background: #000; border-radius: 10px; }
#viewerClose { position: absolute; top: 18px; right: 22px; width: 40px; height: 40px; border-radius: 50%;
  background: var(--panel2); border: 1px solid var(--line); color: var(--txt); font-size: 18px; cursor: pointer; }
#viewerName { position: absolute; bottom: 24px; color: var(--txt); background: rgba(10,14,20,.6);
  padding: 6px 14px; border-radius: 8px; }
.hide { display: none !important; }