:root{
  --bg:#0f1115; --panel:#171a21; --line:#272c36; --fg:#e8eaf0; --dim:#98a0b0;
  --accent:#22c55e; --accentDark:#15803d;
  --safe-t:env(safe-area-inset-top,0px); --safe-b:env(safe-area-inset-bottom,0px);
}
@media (prefers-color-scheme:light){
  :root{ --bg:#eef0f3; --panel:#ffffff; --line:#dfe3e9; --fg:#141820; --dim:#5c6472;
         --accent:#16a34a; --accentDark:#15803d; }
}
*{box-sizing:border-box}
html,body{height:100%;margin:0;overscroll-behavior:none}
body{
  font:14px/1.45 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",sans-serif;
  color:var(--fg); background:var(--bg); -webkit-tap-highlight-color:transparent;
}
#map{position:fixed;inset:0;background:var(--bg)}

/* ---------- top bar ---------- */
#topbar{
  position:fixed; top:0; left:0; right:0; z-index:600;
  display:flex; align-items:center; gap:8px;
  padding:calc(6px + var(--safe-t)) 8px 6px;
  background:linear-gradient(color-mix(in srgb,var(--bg) 92%,transparent),transparent);
  pointer-events:none;
}
#topbar>*{pointer-events:auto}
#readout{
  flex:1; min-width:0; background:color-mix(in srgb,var(--panel) 88%,transparent); border:1px solid var(--line);
  border-radius:10px; padding:5px 10px; backdrop-filter:blur(8px);
}
.ro-main{font-variant-numeric:tabular-nums;font-size:19px;font-weight:650;line-height:1.1}
.ro-main small{font-size:10px;font-weight:400;color:var(--dim);margin-left:3px}
.ro-sub{font-size:11px;color:var(--dim);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.icon{
  width:38px;height:38px;flex:none;border:1px solid var(--line);border-radius:10px;
  background:color-mix(in srgb,var(--panel) 88%,transparent);color:var(--fg);font-size:17px;cursor:pointer;backdrop-filter:blur(8px);
}
.icon:active{transform:scale(.94)}

/* ---------- fabs ---------- */
#fabs{position:fixed;right:10px;bottom:calc(14px + var(--safe-b));z-index:600;display:grid;gap:8px;justify-items:center}
.fab{
  width:50px;height:50px;border-radius:50%;border:1px solid var(--line);
  background:var(--panel);color:var(--fg);display:grid;place-items:center;cursor:pointer;
  box-shadow:0 4px 14px #0006;
}
.fab.small{width:40px;height:40px;font-size:16px}
.fab:active{transform:scale(.93)}
.fab.on{background:var(--accent);color:#04140a;border-color:var(--accent)}
.fab.follow{box-shadow:0 0 0 3px #22c55e55,0 4px 14px #0006}

/* ---------- panel ---------- */
#panel{
  position:fixed;z-index:700;top:0;left:0;bottom:0;width:340px;max-width:88vw;
  background:var(--panel);border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  padding-top:var(--safe-t); padding-bottom:var(--safe-b);
  box-shadow:4px 0 24px #0007;
}
@media (max-width:640px){
  #panel{top:auto;right:0;width:auto;max-width:none;height:64vh;border-right:0;
         border-top:1px solid var(--line);border-radius:16px 16px 0 0;box-shadow:0 -4px 24px #0008}
}
.panel-head{display:flex;align-items:center;justify-content:space-between;padding:12px 14px;border-bottom:1px solid var(--line)}
.tabs{display:flex;border-bottom:1px solid var(--line)}
.tab{flex:1;padding:11px 4px;background:none;border:0;border-bottom:2px solid transparent;color:var(--dim);font:inherit;cursor:pointer}
.tab.is-on{color:var(--fg);border-bottom-color:var(--accent);font-weight:600}
.pane{display:none;overflow:auto;padding:12px 14px;flex:1;-webkit-overflow-scrolling:touch}
.pane.is-on{display:block}

.row{display:flex;align-items:center;gap:9px;padding:7px 0;cursor:pointer}
.row input{accent-color:var(--accent);width:16px;height:16px;flex:none}
.row em{color:var(--dim);font-style:normal;font-size:11px;margin-left:auto}
.dot{width:10px;height:10px;border-radius:50%;background:var(--c);flex:none;box-shadow:0 0 0 2px #0004}
.sw{width:20px;height:3px;border-radius:2px;flex:none;background:var(--accent)}
.sw.ramp{background:repeating-linear-gradient(90deg,#eab308 0 4px,transparent 4px 7px)}
hr{border:0;border-top:1px solid var(--line);margin:10px 0}
.hint{color:var(--dim);font-size:12px;margin:8px 0 0}

.btn{
  padding:9px 14px;border-radius:9px;border:1px solid var(--accent);
  background:var(--accent);color:#04140a;font:inherit;font-weight:600;cursor:pointer;
}
.btn.ghost{background:none;color:var(--fg);border-color:var(--line)}
.btn:disabled{opacity:.45;cursor:not-allowed}
.btns{display:flex;gap:8px;margin:10px 0}


.list{display:flex;flex-wrap:wrap;gap:6px;margin:8px 0 14px}
.chip{
  padding:6px 10px;border:1px solid var(--line);border-radius:999px;background:none;
  color:var(--fg);font:inherit;font-size:12px;cursor:pointer;
}
.chip:hover{border-color:var(--accent)}
.chip small{display:block;color:var(--dim);font-size:10px}
h4{margin:14px 0 0;font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--dim)}
#q{width:100%;padding:9px 11px;border-radius:9px;border:1px solid var(--line);background:var(--bg);color:var(--fg);font:inherit}

/* toast */
#toast{
  position:fixed;left:50%;bottom:calc(80px + var(--safe-b));transform:translateX(-50%);
  z-index:900;background:#000d;color:#fff;padding:9px 15px;border-radius:999px;
  font-size:13px;max-width:86vw;text-align:center;
}

/* leaflet tweaks */
.leaflet-container{background:var(--bg);font:inherit}
.leaflet-control-attribution{font-size:9px;background:color-mix(in srgb,var(--panel) 80%,transparent)!important;color:var(--dim)!important}
.leaflet-control-attribution a{color:var(--dim)!important}
.leaflet-popup-content-wrapper,.leaflet-popup-tip{background:var(--panel);color:var(--fg);border:1px solid var(--line)}
.leaflet-popup-content{margin:9px 12px;font-size:13px}
.leaflet-popup-content b{display:block;margin-bottom:2px}
.leaflet-popup-content .sub{color:var(--dim);font-size:11.5px}
.leaflet-bar a{background:var(--panel);color:var(--fg);border-color:var(--line)}
.leaflet-bar a:hover{background:var(--line)}

/* GPS marker */
.me-dot{
  width:16px;height:16px;border-radius:50%;background:#3b82f6;
  border:3px solid #fff;box-shadow:0 0 0 1px #0006,0 2px 6px #0007;
}
.me-wrap{position:relative}
.me-head{
  position:absolute;left:50%;top:50%;width:0;height:0;
  border-left:7px solid transparent;border-right:7px solid transparent;border-bottom:16px solid #3b82f6;
  transform-origin:50% 100%;
}

/* `hidden` must beat the panel's display:flex */
#panel[hidden]{display:none}
/* keep Leaflet's zoom control clear of the top bar */
.leaflet-top.leaflet-right{margin-top:calc(52px + var(--safe-t))}
/* on wide screens the panel is a left rail, so slide the top bar clear of it */
@media (min-width:641px){
  #topbar{transition:left .18s ease}
  body.panel-open #topbar{left:340px}
}

/* offline download progress */
#dlBar{height:5px;border-radius:3px;background:var(--line);overflow:hidden;margin:9px 0 0}
#dlBar>i{display:block;height:100%;width:0;background:var(--accent);transition:width .25s ease}
#dlBtn{width:100%;margin-top:4px}