:root{
  --bg:#061521;
  --panel:rgba(7,27,43,.92);
  --panel-2:rgba(11,39,59,.88);
  --line:rgba(148,163,184,.18);
  --text:#e8f4fb;
  --muted:#8eabc0;
  --cyan:#22d3ee;
  --blue:#3b82f6;
  --shadow:0 22px 60px rgba(0,0,0,.35);
  --radius:18px;
}
*{box-sizing:border-box}
html,body{height:100%;margin:0}
body{overflow:hidden;background:var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif}
button,input{font:inherit}
button{cursor:pointer}
.topbar{
  position:fixed;z-index:1200;left:0;top:0;right:0;height:66px;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 18px;border-bottom:1px solid var(--line);
  background:linear-gradient(90deg,rgba(4,18,29,.97),rgba(8,34,51,.92));
  backdrop-filter:blur(18px)
}
.brand{display:flex;gap:11px;align-items:center;color:inherit;text-decoration:none}
.brand-mark{
  width:40px;height:40px;display:grid;place-items:center;border-radius:13px;
  background:linear-gradient(145deg,#0891b2,#2563eb);font-weight:900;
  box-shadow:0 0 24px rgba(34,211,238,.25)
}
.brand strong{display:block;font-size:15px;letter-spacing:.02em}
.brand small{display:block;color:var(--muted);font-size:11px;margin-top:2px}
.topbar-actions{display:flex;gap:8px}
.icon-btn{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.055);color:#dff8ff;font-size:19px
}
.icon-btn:hover{background:rgba(34,211,238,.13);border-color:rgba(34,211,238,.45)}
.map-shell{position:fixed;inset:66px 0 0}
#map{position:absolute;inset:0;background:#071b2b}
.side-panel{
  position:absolute;z-index:1000;left:16px;top:16px;bottom:16px;width:350px;
  overflow:auto;padding:16px;border:1px solid var(--line);border-radius:22px;
  background:var(--panel);backdrop-filter:blur(20px);box-shadow:var(--shadow);
  transition:transform .3s ease,opacity .3s ease
}
.side-panel.collapsed{transform:translateX(calc(-100% - 22px));opacity:0;pointer-events:none}
.panel-head{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:14px}
.eyebrow{font-size:10px;text-transform:uppercase;letter-spacing:.2em;color:var(--cyan);font-weight:800}
h1{font-size:22px;margin:4px 0 0}
.panel-toggle{
  width:34px;height:34px;border-radius:11px;border:1px solid var(--line);
  background:rgba(255,255,255,.05);color:#fff;font-size:24px
}
.search-card,.layer-card,.legend-card{
  border:1px solid var(--line);border-radius:16px;padding:13px;margin-top:12px;
  background:linear-gradient(145deg,rgba(255,255,255,.045),rgba(255,255,255,.018))
}
.search-card label{display:block;font-size:12px;color:#bad0de;margin-bottom:8px}
.search-row{display:flex;gap:7px}
.search-row input{
  min-width:0;flex:1;border:1px solid rgba(148,163,184,.22);border-radius:12px;
  padding:11px 12px;color:#fff;background:rgba(3,15,25,.72);outline:none
}
.search-row input:focus{border-color:rgba(34,211,238,.7);box-shadow:0 0 0 3px rgba(34,211,238,.08)}
.search-row button{
  width:40px;border:1px solid var(--line);border-radius:12px;
  background:rgba(255,255,255,.05);color:#fff;font-size:20px
}
.search-status{font-size:11px;color:var(--muted);padding:8px 2px 2px}
.search-results{display:grid;gap:7px;max-height:260px;overflow:auto}
.search-result{
  width:100%;text-align:left;padding:10px;border-radius:12px;border:1px solid var(--line);
  color:#e9f9ff;background:rgba(255,255,255,.035)
}
.search-result:hover{border-color:rgba(34,211,238,.45);background:rgba(34,211,238,.08)}
.search-result strong{display:block;font-size:12px}
.search-result small{display:block;color:var(--muted);margin-top:3px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.section-title{display:flex;align-items:center;justify-content:space-between;font-size:12px;font-weight:800;margin-bottom:9px}
.section-title button{border:0;background:none;color:var(--cyan);font-size:11px}
.layer-list,.legend-list{display:grid;gap:8px}
.layer-item,.legend-item{display:flex;align-items:center;gap:10px;padding:8px;border-radius:11px}
.layer-item:hover{background:rgba(255,255,255,.04)}
.layer-item input{accent-color:#22d3ee}
.layer-swatch{width:12px;height:12px;border-radius:50%;box-shadow:0 0 12px currentColor}
.layer-text{flex:1;min-width:0}
.layer-text strong{display:block;font-size:12px}
.layer-text small{display:block;color:var(--muted);font-size:10px;margin-top:2px}
.legend-item{font-size:11px;color:#c8dce8}
.mobile-panel-btn{
  position:absolute;z-index:950;left:14px;top:14px;display:none;
  border:1px solid rgba(255,255,255,.22);border-radius:12px;padding:10px 13px;
  color:#fff;background:rgba(7,27,43,.9);backdrop-filter:blur(12px)
}
.map-badge{
  position:absolute;z-index:800;right:14px;bottom:16px;
  padding:9px 12px;border:1px solid var(--line);border-radius:12px;
  background:rgba(7,27,43,.84);backdrop-filter:blur(12px);
  color:#b9d2e2;font-size:11px
}
.app-loader{
  position:fixed;z-index:5000;inset:0;display:flex;align-items:center;justify-content:center;
  gap:14px;background:#061521;transition:opacity .35s ease,visibility .35s ease
}
.app-loader.hidden{opacity:0;visibility:hidden}
.app-loader strong{display:block}
.app-loader span{display:block;color:var(--muted);font-size:12px;margin-top:4px}
.loader-ring{
  width:44px;height:44px;border-radius:50%;border:3px solid rgba(255,255,255,.1);
  border-top-color:var(--cyan);animation:spin .8s linear infinite
}
@keyframes spin{to{transform:rotate(360deg)}}

/* Leaflet styling */
.leaflet-control-zoom a,.leaflet-control-layers{
  background:rgba(7,27,43,.92)!important;color:#fff!important;border-color:var(--line)!important
}
.leaflet-control-zoom a:hover{background:rgba(34,211,238,.16)!important}
.leaflet-popup-content-wrapper,.leaflet-popup-tip{
  background:#071b2b;color:#e9f8ff;border:1px solid rgba(148,163,184,.2)
}
.leaflet-popup-content-wrapper{border-radius:16px;box-shadow:0 18px 45px rgba(0,0,0,.35)}
.feature-popup{min-width:250px;max-width:330px}
.feature-popup h3{margin:0 0 9px;font-size:15px;color:#fff}
.popup-layer{font-size:10px;text-transform:uppercase;letter-spacing:.12em;color:#22d3ee;margin-bottom:5px}
.popup-table{width:100%;border-collapse:collapse;font-size:11px}
.popup-table tr{border-top:1px solid rgba(148,163,184,.13)}
.popup-table th,.popup-table td{padding:6px 3px;text-align:left;vertical-align:top}
.popup-table th{color:#8fb0c4;width:38%;font-weight:600}
.popup-table td{color:#e8f5fb;word-break:break-word}
.water-marker{background:transparent;border:0}
.water-marker__pin{
  width:38px;height:38px;display:grid;place-items:center;border-radius:50% 50% 50% 12px;
  transform:rotate(-45deg);border:2px solid rgba(255,255,255,.9);
  box-shadow:0 7px 20px rgba(0,0,0,.42),0 0 18px var(--marker-colour)
}
.water-marker__pin span{transform:rotate(45deg);font-size:17px;filter:drop-shadow(0 2px 2px rgba(0,0,0,.35))}
.marker-cluster div{
  color:#fff;font-weight:800;background:linear-gradient(145deg,#0891b2,#2563eb)!important;
  box-shadow:0 0 0 6px rgba(34,211,238,.14),0 0 26px rgba(34,211,238,.38)
}
.marker-cluster{background:rgba(34,211,238,.16)!important}
.highlight-pulse{animation:pulse 1.1s ease-out 3}
@keyframes pulse{0%{filter:drop-shadow(0 0 0 rgba(255,255,255,0))}50%{filter:drop-shadow(0 0 15px #fff)}100%{filter:drop-shadow(0 0 0 rgba(255,255,255,0))}}

@media(max-width:760px){
  .brand small{display:none}
  .topbar{height:58px;padding:0 11px}
  .map-shell{inset:58px 0 0}
  .side-panel{left:10px;right:10px;top:10px;bottom:10px;width:auto}
  .side-panel.collapsed{transform:translateY(calc(100% + 16px))}
  .mobile-panel-btn{display:block}
  .map-badge{bottom:12px;right:10px}
}