:root {
  --panel-w: 300px;
  --bg: #1b1d21;
  --bg2: #24272c;
  --fg: #e6e6e6;
  --muted: #9aa0a8;
  --accent: #5aa9e6;
  --border: #33373d;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; font: 13px/1.4 system-ui, -apple-system, "Segoe UI", sans-serif; color: var(--fg); background: #fff; }
#map { position: absolute; inset: 0; left: var(--panel-w); }
body.collapsed #map { left: 0; }

#panel {
  position: absolute; top: 0; left: 0; bottom: 0; width: var(--panel-w);
  background: var(--bg); overflow-y: auto; border-right: 1px solid var(--border);
  display: flex; flex-direction: column; gap: 0;
}
body.collapsed #panel { display: none; }
#panel header { padding: 14px 16px 8px; }
#panel h1 { margin: 0; font-size: 18px; font-weight: 600; letter-spacing: .2px; }
#panel .sub { margin: 2px 0 0; color: var(--muted); font-size: 11.5px; }
#panel section { padding: 10px 16px 12px; border-top: 1px solid var(--border); }
#panel h2 { margin: 0 0 8px; font-size: 11px; text-transform: uppercase; letter-spacing: .8px; color: var(--muted); font-weight: 600; }
#panel label { display: block; margin: 6px 0 2px; }
#panel label.row { display: flex; align-items: center; gap: 8px; margin: 4px 0; }
#panel output { float: right; color: var(--accent); font-variant-numeric: tabular-nums; }
#panel input[type=range] { width: 100%; margin: 4px 0 0; accent-color: var(--accent); }
#panel select { width: 100%; margin-top: 3px; background: var(--bg2); color: var(--fg); border: 1px solid var(--border); border-radius: 4px; padding: 4px 6px; }
#panel .hint { margin: 6px 0 0; color: var(--muted); font-size: 11.5px; }
#panel .dual { position: relative; height: 24px; }
#panel .dual input { position: absolute; left: 0; right: 0; top: 0; margin: 0; pointer-events: none; background: transparent; }
#panel .dual input::-webkit-slider-thumb { pointer-events: auto; }
#panel .dual input::-moz-range-thumb { pointer-events: auto; }
#ramp { height: 10px; border-radius: 3px; margin: 2px 0 6px; border: 1px solid var(--border); }
#panel .actions { display: flex; gap: 8px; }
#panel button { flex: 1; background: var(--bg2); color: var(--fg); border: 1px solid var(--border); border-radius: 4px; padding: 6px 8px; cursor: pointer; }
#panel button:hover { border-color: var(--accent); }
#panel footer { margin-top: auto; padding: 10px 16px 14px; border-top: 1px solid var(--border); color: var(--muted); font-size: 11.5px; }
#panel footer p { margin: 4px 0; }
#panel footer .cred { font-size: 10.5px; }

#panel-toggle {
  position: absolute; top: 10px; left: calc(var(--panel-w) + 10px); z-index: 5;
  width: 34px; height: 34px; border-radius: 4px; border: 1px solid #bbb; background: #fff; cursor: pointer; font-size: 16px;
}
body.collapsed #panel-toggle { left: 10px; }

.maplibregl-popup-content { font: 12px/1.5 system-ui, sans-serif; color: #222; padding: 8px 10px; }
.maplibregl-popup-content b { font-size: 14px; }
.maplibregl-popup-content .dim { color: #777; }

@media (max-width: 700px) {
  :root { --panel-w: 260px; }
}

#errors { position: absolute; top: 10px; right: 60px; z-index: 10; max-width: 480px; max-height: 40vh; overflow: auto; margin: 0; padding: 8px 10px; background: #fff3f3; color: #a00; border: 1px solid #e99; border-radius: 4px; font: 11.5px/1.4 ui-monospace, Consolas, monospace; white-space: pre-wrap; }

.legend { display: flex; flex-wrap: wrap; gap: 4px 10px; margin: 6px 0 2px; font-size: 11px; color: var(--muted); }
.legend i { display: inline-block; width: 12px; height: 10px; margin-right: 4px; vertical-align: -1px; border-radius: 2px; }
.maplibregl-popup-content hr { border: 0; border-top: 1px solid #ddd; margin: 5px 0; }
.maplibregl-popup-close-button { font-size: 18px; padding: 0 6px; color: #666; }
.maplibregl-popup-close-button:hover { color: #000; background: transparent; }

#goto { display: flex; gap: 6px; margin: 0; }
#goto input { flex: 1; min-width: 0; background: var(--bg2); color: var(--fg); border: 1px solid var(--border); border-radius: 4px; padding: 5px 7px; font: inherit; }
#goto input:focus { outline: none; border-color: var(--accent); }
#goto button { flex: 0 0 auto; padding: 5px 12px; }
#goto-msg.err { color: #f08080; }