:root{
  --bg:#0f172a;
  --panel:#111827;
  --panel-2:#1f2937;
  --text:#e5e7eb;
  --muted:#9ca3af;
  --accent:#22c55e;
  --line:#60a5fa;
  --border:#334155;
}
*{box-sizing:border-box}
html,body{margin:0;height:100%;font-family:Inter,Segoe UI,Arial,sans-serif;background:var(--bg);color:var(--text)}
body{display:grid;grid-template-columns:360px 1fr}
.sidebar{height:100vh;overflow:auto;border-right:1px solid var(--border);background:var(--panel)}
.panel{padding:16px;border-bottom:1px solid var(--border)}
h1,h2{margin:0 0 10px 0}
h1{font-size:1.35rem}
h2{font-size:1rem}
.subtle,.meta{color:var(--muted);font-size:.92rem;line-height:1.4}
.controls{display:grid;gap:12px;margin-top:14px}
.control span{display:block;font-size:.9rem;margin-bottom:6px;color:var(--muted)}
input[type=text]{
  width:100%;padding:10px 12px;border-radius:10px;border:1px solid var(--border);
  background:var(--panel-2);color:var(--text)
}
.toggles{display:grid;gap:8px;font-size:.95rem}
.legend{margin-top:14px}
.legend-row{display:flex;align-items:center;gap:8px;margin:6px 0;color:#d1d5db;font-size:.92rem}
.swatch{width:16px;height:16px;border-radius:4px;display:inline-block;border:1px solid rgba(255,255,255,.15)}
.swatch.route{
  width:24px;
  height:0;
  border:none;
  border-top:4px solid #60a5fa;
  border-radius:0;
  background:transparent;
}
.swatch.shelter{
  width:14px;
  height:14px;
  border-radius:999px;
  background:#22c55e;
  border:1px solid rgba(255,255,255,.85);
}
.swatch.allowed{background:rgba(34,197,94,.7)}
.swatch.restricted{background:rgba(245,158,11,.8)}
.swatch.forbidden{background:rgba(239,68,68,.8)}
.list-panel{padding-top:12px}
.list-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}
.route-list{display:grid;gap:8px;max-height:calc(100vh - 360px);overflow:auto}
.route-item{
  border:1px solid var(--border);background:var(--panel-2);padding:10px 12px;border-radius:12px;cursor:pointer;
}
.route-item:hover,.route-item.active{border-color:#60a5fa;outline:1px solid rgba(96,165,250,.35)}
.route-item .name{font-weight:600;margin-bottom:4px}
.route-item .meta{font-size:.8rem;color:var(--muted)}
.map-wrap{position:relative;height:100vh}
#map{position:absolute;inset:0}
.status-banner{
  position:absolute;right:16px;top:16px;z-index:5;background:rgba(17,24,39,.9);color:#e5e7eb;
  border:1px solid var(--border);border-radius:999px;padding:10px 14px;font-size:.9rem;backdrop-filter: blur(6px);
  transition:opacity .35s ease;
}
.maplibregl-popup-content{max-width:320px;padding:12px 14px;border-radius:12px}
.popup-title{font-weight:700;margin-bottom:8px}
.popup-meta{font-size:.88rem;color:#374151;line-height:1.45}

.overlay-doc-buttons{
  position:absolute;
  top:16px;
  left:16px;
  z-index:6;
  display:flex;
  gap:8px;
}
.doc-btn{
  background:rgba(17,24,39,.92);
  color:#e5e7eb;
  border:1px solid var(--border);
  border-radius:999px;
  padding:10px 14px;
  font-size:.9rem;
  cursor:pointer;
  backdrop-filter:blur(6px);
}
.doc-btn:hover{border-color:#60a5fa}
.doc-overlay.hidden{display:none}
.doc-overlay{position:absolute;inset:0;z-index:20}
.doc-overlay-backdrop{position:absolute;inset:0;background:rgba(2,6,23,.28)}
.doc-overlay-panel{
  position:absolute;top:0;right:0;height:100%;width:min(560px,92vw);
  background:rgba(17,24,39,.88);border-left:1px solid var(--border);
  box-shadow:-10px 0 30px rgba(0,0,0,.25);display:flex;flex-direction:column;
  backdrop-filter:blur(10px);
}
.doc-overlay-header{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:16px 18px;border-bottom:1px solid var(--border)
}
.doc-overlay-header h2{margin:0}
.doc-close-btn{
  border:1px solid var(--border);background:var(--panel-2);color:var(--text);
  width:36px;height:36px;border-radius:999px;cursor:pointer;font-size:1.3rem
}
.doc-overlay-content{padding:18px;overflow:auto}
.doc-overlay-content h1{font-size:1.35rem}
.doc-overlay-content h2{margin-top:22px}
.doc-overlay-content p,.doc-overlay-content li,.doc-overlay-content td,.doc-overlay-content th{color:#d1d5db}
.doc-overlay-content a{color:#93c5fd}
.doc-overlay-content table{width:100%;border-collapse:collapse;margin-top:10px}
.doc-overlay-content th,.doc-overlay-content td{
  text-align:left;vertical-align:top;padding:10px 12px;border:1px solid var(--border)
}
.doc-overlay-content th{background:var(--panel-2)}
.doc-overlay-content code{
  background:var(--panel-2);border:1px solid var(--border);border-radius:8px;padding:2px 6px
}

.sources-page{
  max-width:980px;
  margin:0 auto;
  padding:32px 20px 56px;
  line-height:1.55;
}
.sources-page h1{margin-bottom:8px}
.sources-page h2{margin-top:28px;margin-bottom:10px}
.sources-page p,.sources-page li{color:#d1d5db}
.sources-page a{color:#93c5fd}
.sources-page .back-link{
  display:inline-block;
  margin-bottom:18px;
  color:#93c5fd;
  text-decoration:none;
  font-weight:600;
}
.sources-page .back-link:hover{text-decoration:underline}
.sources-page .card{
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:16px;
  padding:18px 20px;
  margin-top:14px;
}
.sources-page ul,.sources-page ol{margin-top:8px}
.sources-page code{
  background:var(--panel-2);
  border:1px solid var(--border);
  border-radius:8px;
  padding:2px 6px;
}
.sources-page table{
  width:100%;
  border-collapse:collapse;
  margin-top:10px;
}
.sources-page th,
.sources-page td{
  text-align:left;
  vertical-align:top;
  padding:10px 12px;
  border:1px solid var(--border);
}
.sources-page th{
  background:var(--panel-2);
  color:#e5e7eb;
}

@media (max-width: 960px){
  body{grid-template-columns:1fr}
  .sidebar{position:absolute;left:0;top:0;bottom:0;z-index:10;width:min(360px,90vw);transform:translateX(-100%);display:none}
}