:root{
  --brand:#0ea5e9;
  --text:#0f172a;
  --muted:#475569;
  --bg:#f8fafc;
  --card:#ffffff;
  --shadow: 0 10px 24px rgba(15,23,42,.12);
}
*{ box-sizing: border-box; }
html,body{ height:100%; margin:0; background:var(--bg); color:var(--text); font-family: -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif; }
#topbar{
  position:fixed; inset:0 0 auto 0; height:64px; z-index:1000;
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  background:linear-gradient(135deg, var(--brand), #22c55e); color:#fff;
  box-shadow: 0 6px 18px rgba(14,165,233,.35);
}
#topbar .title{ font-weight:800; letter-spacing:.4px; }
#topbar .subtitle{ font-size:12px; opacity:.9; margin-top:2px; }

#app{ position:absolute; inset:64px 0 0 0; }
#map{ position:absolute; inset:0 0 140px 0; z-index:0; }
.leaflet-container{ outline:none; }
.leaflet-control-zoom a{ border-radius:10px; }

#controls{
  position:absolute; top:14px; right:12px; z-index:500;
  background:var(--card); padding:10px 12px; border-radius:14px;
  box-shadow: var(--shadow); width: 190px;
}
.control-section{ display:flex; flex-direction:column; gap:6px; }
.control-title{ font-weight:700; font-size:13px; color:var(--muted); margin-bottom:4px; }
#controls label{ display:flex; align-items:center; gap:8px; font-size:13px; color:#111827; }

#cardrail{
  position:absolute; inset:auto 0 0 0; z-index:20;
  display:flex; gap:12px; overflow-x:auto; padding:12px;
  background: linear-gradient(180deg, rgba(248,250,252,0), rgba(248,250,252,.96) 30%, rgba(248,250,252,1) 60%);
  -webkit-overflow-scrolling:touch;
}
.card{
  min-width:82vw; max-width:82vw; background:var(--card); border-radius:18px;
  padding:14px 16px; box-shadow: var(--shadow);
}
.card h4{ margin:0 0 8px; font-size:16px; }
.card .tags{ display:flex; flex-wrap:wrap; gap:8px; margin-bottom:4px; }
.tag{ font-size:12px; background:#eef2ff; color:#3730a3; padding:3px 8px; border-radius:999px; }
.card ul{ margin:6px 0 0 18px; padding:0; font-size:13px; line-height:1.6; color:#334155; }
.btn{
  margin-top:10px; padding:10px 14px; border:none; border-radius:12px;
  background:var(--brand); color:#fff; font-weight:700; font-size:13px;
  box-shadow: 0 8px 18px rgba(14,165,233,.35); cursor:pointer;
}
.btn:active{ transform: translateY(1px); }

@media (min-width: 900px){
  #map{ inset:0 0 160px 0; }
  .card{ min-width:420px; max-width:420px; }
}