:root{color-scheme:light dark;--bg:#f6f7f9;--panel:#fff;--ink:#12151a;--muted:#6b7280;
      --line:#e3e6eb;--accent:#0091FF;--danger:#c1121f}
@media (prefers-color-scheme:dark){:root{--bg:#0f1216;--panel:#161a21;--ink:#e6e9ef;
      --muted:#8b93a1;--line:#242a33}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);
     font:14px/1.5 -apple-system,Segoe UI,Roboto,sans-serif;height:100vh;
     display:flex;flex-direction:column}
header{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
       padding:12px 16px;background:var(--panel);border-bottom:1px solid var(--line)}
h1{font-size:16px;margin:0}
.sub{color:var(--muted);font-size:12px}
.sub .ok{color:#1a9e4b;font-weight:600}
.sub .bad{color:var(--danger);font-weight:600}
.actions{display:flex;gap:8px;flex-wrap:wrap}
button{padding:8px 13px;border:0;border-radius:7px;background:var(--accent);color:#fff;
       font-size:13px;font-weight:600;cursor:pointer}
button.ghost{background:transparent;color:var(--ink);border:1px solid var(--line)}
button.danger{background:var(--danger)}
main{flex:1;display:flex;min-height:0}
#map{flex:1;min-width:0;background:var(--line)}
aside{width:330px;border-left:1px solid var(--line);background:var(--panel);
      display:flex;flex-direction:column;min-height:0}
.filter{padding:10px;border-bottom:1px solid var(--line)}
input,select{width:100%;padding:8px 10px;border:1px solid var(--line);border-radius:7px;
             background:var(--bg);color:var(--ink);font-size:13px}
#list{overflow:auto;flex:1}
.item{padding:10px 12px;border-bottom:1px solid var(--line);cursor:pointer;
      display:flex;gap:10px;align-items:center}
.item:hover{background:var(--bg)}
.item.sel{background:color-mix(in srgb,var(--accent) 14%,transparent)}
.swatch{width:10px;height:10px;border-radius:50%;flex:0 0 10px}
.item .nm{font-weight:600}
.item .co{color:var(--muted);font-size:11.5px;font-variant-numeric:tabular-nums}
.sheet{position:fixed;inset:0;background:rgba(0,0,0,.45);display:grid;place-items:center;
       padding:16px;z-index:9999}
.sheet-inner{background:var(--panel);border-radius:12px;padding:18px;width:min(460px,100%);
             max-height:85vh;overflow:auto}
.sheet h2{margin:0 0 14px;font-size:15px}
label{display:block;margin-bottom:11px;font-size:12px;color:var(--muted)}
label input{margin-top:4px}
.row{display:flex;gap:10px}.row label{flex:1}
label.check{display:flex;align-items:center;gap:7px;margin-top:22px}
label.check input{width:auto;margin:0}
.hint{font-size:11px}
.sheet-actions{display:flex;gap:8px;margin-top:6px}
.sheet-actions button{flex:1}
#setup-steps{padding-left:20px;font-size:13px}
#setup-steps li{margin-bottom:9px}
code{background:var(--bg);padding:2px 6px;border-radius:5px;font-size:12px;word-break:break-all}
[hidden]{display:none!important}
@media(max-width:760px){main{flex-direction:column}aside{width:auto;border-left:0;
  border-top:1px solid var(--line);max-height:44vh}#map{min-height:46vh}}

/* drone marker: a triangle that turns to the reported heading */
.drone-icon{background:none;border:0}
.drone{width:26px;height:26px;transition:transform .3s linear}
.drone span{display:block;width:0;height:0;margin:2px auto;
  border-left:8px solid transparent;border-right:8px solid transparent;
  border-bottom:20px solid #ff7a00;
  filter:drop-shadow(0 0 2px rgba(0,0,0,.6))}

#offline{position:absolute;z-index:500;left:50%;transform:translateX(-50%);top:70px;
  background:var(--panel);color:var(--muted);border:1px solid var(--line);
  padding:7px 12px;border-radius:8px;font-size:12px;max-width:min(90vw,420px);
  text-align:center;box-shadow:0 2px 8px rgba(0,0,0,.18)}

.group{display:inline-flex;align-items:center;gap:6px;padding:3px 8px;
  border:1px solid var(--line);border-radius:8px;background:var(--bg)}
.group label.inline{margin:0;font-size:12px;color:var(--muted);white-space:nowrap}
.group input{width:64px;padding:5px 7px;text-align:right}
.group .unit{font-size:12px;color:var(--muted)}