:root{
  --bg:#0b0d11; --panel:#151a22; --panel2:#1c2430; --line:#283142;
  --txt:#e7edf5; --dim:#8a98ab; --teal:#27d3c4;
  --green:#1fbf6b; --amber:#f5b32e; --red:#ef4444;
}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--txt);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  -webkit-font-smoothing:antialiased}
.hidden{display:none!important}

/* login */
.login{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;
  background:var(--bg);z-index:50;padding:20px}
.login-card{background:var(--panel);border:1px solid var(--line);border-radius:16px;
  padding:28px 22px;width:100%;max-width:340px;display:flex;flex-direction:column;gap:12px}
.login-brand{font-size:24px;font-weight:800;letter-spacing:.06em;text-align:center}
.login-brand span{color:var(--teal)}
.login-sub{text-align:center;color:var(--dim);font-size:13px;margin-bottom:8px}
.login-card input{background:var(--panel2);border:1px solid var(--line);border-radius:10px;
  padding:13px;color:var(--txt);font-size:16px}
.login-card button{background:var(--teal);color:#04201d;border:0;border-radius:10px;
  padding:13px;font-size:16px;font-weight:700;cursor:pointer}
.login-err{color:var(--red);font-size:13px;text-align:center;min-height:16px}

/* top */
.top{display:flex;align-items:center;justify-content:space-between;
  padding:14px 16px;border-bottom:1px solid var(--line);position:sticky;top:0;
  background:var(--bg);z-index:10}
.brand{font-weight:800;letter-spacing:.05em;font-size:18px}
.badge{display:inline-block;width:12px;height:12px;border-radius:50%;
  margin-left:8px;vertical-align:middle;background:var(--dim)}
.badge.green{background:var(--green)} .badge.yellow{background:var(--amber)} .badge.red{background:var(--red)}
.updated{color:var(--dim);font-size:12px}

.stale{background:#3a2a08;color:var(--amber);border-bottom:1px solid var(--amber);
  padding:8px 16px;font-size:13px;text-align:center;font-weight:600}

.tabs{display:flex;gap:0;border-bottom:1px solid var(--line)}
.tab{flex:1;background:none;border:0;color:var(--dim);padding:13px;font-size:14px;
  font-weight:600;cursor:pointer;border-bottom:2px solid transparent}
.tab.active{color:var(--teal);border-bottom-color:var(--teal)}

main{padding:12px}

/* camera wall */
.wall{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
@media(min-width:680px){.wall{grid-template-columns:repeat(3,1fr)}}
.cam{position:relative;background:#000;border:2px solid var(--line);border-radius:12px;
  overflow:hidden;aspect-ratio:16/9;cursor:pointer}
.cam.green{border-color:var(--green)} .cam.yellow{border-color:var(--amber)} .cam.red{border-color:var(--red)}
.cam img{width:100%;height:100%;object-fit:cover;display:block}
.cam .lbl{position:absolute;left:0;bottom:0;right:0;
  background:linear-gradient(transparent,rgba(0,0,0,.8));color:#fff;
  padding:14px 8px 6px;font-size:12px;font-weight:600;display:flex;justify-content:space-between}
.cam .dot{position:absolute;top:6px;right:6px;width:10px;height:10px;border-radius:50%}
.cam .dot.green{background:var(--green)} .cam .dot.yellow{background:var(--amber)} .cam .dot.red{background:var(--red)}
.cam .down{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  color:var(--dim);font-size:13px;text-align:center;padding:8px}
.cam .det{color:var(--amber);font-weight:600}

/* network rows */
.rows{display:flex;flex-direction:column;gap:8px}
.grp{color:var(--dim);font-size:12px;text-transform:uppercase;letter-spacing:.08em;
  margin:10px 2px 2px}
.row{display:flex;align-items:center;gap:10px;background:var(--panel);
  border:1px solid var(--line);border-radius:10px;padding:12px}
.row .rdot{width:11px;height:11px;border-radius:50%;flex:0 0 auto}
.row .rdot.green{background:var(--green)} .row .rdot.yellow{background:var(--amber)} .row .rdot.red{background:var(--red)}
.row .rl{font-weight:600;font-size:15px}
.row .rd{color:var(--dim);font-size:12px;margin-left:auto;text-align:right}
.row .rd b{color:var(--amber)}

/* fullscreen */
.fs{position:fixed;inset:0;background:#000;z-index:60;display:flex;flex-direction:column}
.fs-bar{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;color:#fff}
.fs-bar button{background:var(--panel2);color:#fff;border:1px solid var(--line);
  border-radius:8px;padding:8px 16px;font-size:14px;cursor:pointer}
.fs-video{flex:1;width:100%;height:100%;object-fit:contain;background:#000}