/* UWB RTLS dashboard — dark theme */
:root {
  --bg:        #0d1117;
  --bg-2:      #161b22;
  --bg-3:      #1c232c;
  --border:    #2a3340;
  --fg:        #e6edf3;
  --fg-dim:    #8b95a5;
  --accent:    #2f81f7;
  --accent-2:  #3fb950;
  --warn:      #d29922;
  --bad:       #f85149;
  --muted:     #6b7383;
  --row-nlos:  #3a2f10;
  --row-bad:   #3a1010;
  --row-stale: #1a1d22;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--fg); font: 14px/1.4 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
button, input, select { font: inherit; color: inherit; }
a { color: var(--accent); text-decoration: none; }

.topbar {
  display: flex; align-items: center; gap: 16px;
  padding: 10px 16px; background: var(--bg-2); border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 10;
}
.topbar h1 { font-size: 16px; margin: 0; letter-spacing: .5px; }
.status { display: flex; align-items: center; gap: 8px; color: var(--fg-dim); }
.status .sep { color: var(--border); }
.dot { width: 10px; height: 10px; border-radius: 50%; background: var(--muted); display: inline-block; box-shadow: 0 0 0 2px rgba(0,0,0,.4) inset; }
.dot.on  { background: var(--accent-2); box-shadow: 0 0 8px var(--accent-2); }
.dot.off { background: var(--bad); }
.settings { margin-left: auto; display: flex; gap: 6px; }
.settings input {
  background: var(--bg-3); border: 1px solid var(--border); border-radius: 6px;
  padding: 6px 8px; width: 320px; max-width: 50vw;
}
.settings button, #clearBtn {
  background: var(--accent); color: white; border: 0; border-radius: 6px;
  padding: 6px 12px; cursor: pointer;
}
.settings button:hover, #clearBtn:hover { filter: brightness(1.1); }

.cards {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 10px; padding: 12px 16px;
}
.card {
  background: var(--bg-2); border: 1px solid var(--border); border-radius: 10px;
  padding: 10px 12px; display: flex; flex-direction: column; gap: 4px;
}
.card .label { color: var(--fg-dim); font-size: 12px; text-transform: uppercase; letter-spacing: .5px; }
.card .value { font-size: 22px; font-weight: 600; }

.filters {
  display: flex; flex-wrap: wrap; gap: 12px; align-items: center;
  padding: 0 16px 8px;
}
.filters label { display: flex; align-items: center; gap: 6px; color: var(--fg-dim); }
.filters label.cb { color: var(--fg); }
.filters select {
  background: var(--bg-3); border: 1px solid var(--border); border-radius: 6px;
  padding: 4px 8px;
}

.grid {
  display: grid; gap: 12px; padding: 0 16px 16px;
  grid-template-columns: 1fr 1fr;
}
.panel {
  background: var(--bg-2); border: 1px solid var(--border); border-radius: 10px;
  padding: 12px; min-width: 0;
}
.panel.full { grid-column: 1 / -1; }
.panel h2 { font-size: 13px; margin: 0 0 8px; color: var(--fg-dim); text-transform: uppercase; letter-spacing: .5px; }
.panel h2 .muted { float: right; }
.muted { color: var(--muted); font-weight: normal; }

.tablewrap { max-height: 420px; overflow: auto; border: 1px solid var(--border); border-radius: 8px; }
table { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; font-size: 13px; }
thead th {
  position: sticky; top: 0; background: var(--bg-3); color: var(--fg-dim);
  text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--border); font-weight: 500;
}
tbody td { padding: 4px 8px; border-bottom: 1px solid var(--border); white-space: nowrap; }
tbody tr.nlos td { background: var(--row-nlos); }
tbody tr.bad  td { background: var(--row-bad); }
tbody tr.stale td { background: var(--row-stale); color: var(--muted); }

.input-label {
  background: var(--bg-3); border: 1px solid var(--border); border-radius: 4px;
  padding: 2px 6px; width: 100%; max-width: 220px;
}

.btn-del {
  background: transparent; color: var(--bad); border: 1px solid var(--bad);
  border-radius: 4px; padding: 2px 8px; cursor: pointer; font-size: 12px;
}
.btn-del:hover { background: var(--bad); color: white; }
.btn-del:disabled { opacity: 0.4; cursor: default; }

footer { padding: 12px 16px; color: var(--muted); font-size: 12px; text-align: center; }

@media (max-width: 900px) {
  .grid { grid-template-columns: 1fr; }
  .settings input { width: 200px; }
}