:root{
  --water:#BFD3E1;--land:#F4F5F1;--park:#CBE1C1;--grid:#DCDFD7;--grid-major:#C2C8BD;--shore:#8FA9BC;
  --ink:#17232C;--ink-2:#55646F;--panel:#FFFFFF;--line:#E1E5E8;--field:#F2F5F6;
  --target:#0E7A4E;--target-fill:rgba(14,122,78,.30);--excl:#B8352A;--excl-fill:rgba(184,53,42,.09);
  --leak:#C98200;--ok-bg:#E3F3EA;--warn-bg:#FCF0D9;--bad-bg:#FBE4E1;
  color-scheme:light;
  box-sizing:border-box;
  padding-top:env(safe-area-inset-top,0px);
  padding-bottom:env(safe-area-inset-bottom,0px);
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --water:#0C1822;--land:#1B2329;--park:#1C3124;--grid:#27313A;--grid-major:#35414B;--shore:#36505F;
    --ink:#E5EBEE;--ink-2:#9AA8B1;--panel:#11181E;--line:#24303A;--field:#19232A;
    --target:#3DD68C;--target-fill:rgba(61,214,140,.26);--excl:#FF6B5C;--excl-fill:rgba(255,107,92,.10);
    --leak:#F5B53D;--ok-bg:#163126;--warn-bg:#3A2D12;--bad-bg:#3D1A17;
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --water:#0C1822;--land:#1B2329;--park:#1C3124;--grid:#27313A;--grid-major:#35414B;--shore:#36505F;
  --ink:#E5EBEE;--ink-2:#9AA8B1;--panel:#11181E;--line:#24303A;--field:#19232A;
  --target:#3DD68C;--target-fill:rgba(61,214,140,.26);--excl:#FF6B5C;--excl-fill:rgba(255,107,92,.10);
  --leak:#F5B53D;--ok-bg:#163126;--warn-bg:#3A2D12;--bad-bg:#3D1A17;
  color-scheme:dark;
}
*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-padding-top:env(safe-area-inset-top,0px);height:100%}
body{margin:0;height:100%;background:var(--panel);color:var(--ink);
  font-family:"Barlow",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;font-size:15px;line-height:1.45}
.app{display:grid;grid-template-columns:minmax(0,1fr) clamp(420px,40vw,640px);height:100%}
#map{position:relative;background:var(--water);min-height:300px}
.panel{overflow-y:auto;border-left:1px solid var(--line);padding:22px 22px 40px}
h1{font-family:"Barlow Semi Condensed","Arial Narrow",sans-serif;font-weight:700;font-size:26px;line-height:1.1;margin:0 0 6px;letter-spacing:-.01em}
.ver{font-family:"JetBrains Mono",ui-monospace,Menlo,Consolas,monospace;font-weight:400;font-size:11.5px;letter-spacing:0;color:var(--ink-2);border:1px solid var(--line);border-radius:4px;padding:1px 6px;vertical-align:middle;white-space:nowrap}
.lede{color:var(--ink-2);margin:0 0 20px;max-width:46ch}
h2{font-family:"Barlow Semi Condensed","Arial Narrow",sans-serif;font-weight:600;font-size:17px;margin:0 0 10px}
h3{font-size:13px;font-weight:400;color:var(--ink-2);margin:0 0 4px}
section{padding:16px 0;border-top:1px solid var(--line)}
details.step{border:1px solid var(--line);border-radius:10px;margin:0 0 10px;background:var(--panel)}
details.step>summary{list-style:none;display:flex;align-items:center;gap:10px;padding:11px 14px;cursor:pointer;border-radius:10px;user-select:none}
details.step>summary::-webkit-details-marker{display:none}
details.step>summary::after{content:"";margin-left:auto;flex:none;width:8px;height:8px;border-right:2px solid var(--ink-2);border-bottom:2px solid var(--ink-2);transform:rotate(-45deg);transition:transform .15s}
details.step[open]>summary::after{transform:rotate(45deg)}
details.step>summary:hover{background:var(--field)}
details.step>summary:focus-visible{outline:2px solid var(--target);outline-offset:-2px}
details.step .num{flex:none;width:22px;height:22px;border-radius:11px;background:var(--target);color:var(--panel);font-size:12px;font-weight:600;display:grid;place-items:center}
details.step .ttl{font-family:"Barlow Semi Condensed","Arial Narrow",sans-serif;font-weight:600;font-size:17px;white-space:nowrap}
details.step .sum{min-width:0;color:var(--ink-2);font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
details.step[open] .sum{display:none}
.stepbody{padding:4px 14px 14px}
label{display:block;font-size:13px;color:var(--ink-2);margin-bottom:4px}
input[type=text],input[type=number],select,textarea{
  width:100%;font:inherit;color:var(--ink);background:var(--field);border:1px solid var(--line);
  border-radius:6px;padding:8px 10px}
input.mono,textarea{font-family:"JetBrains Mono",ui-monospace,Menlo,Consolas,monospace;font-size:13px}
input:focus-visible,select:focus-visible,textarea:focus-visible,button:focus-visible{outline:2px solid var(--target);outline-offset:1px}
.row{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.row3{display:grid;grid-template-columns:1fr 1fr 84px;gap:10px;align-items:end}
.field{margin-bottom:12px}
.hint{font-size:13px;color:var(--ink-2);margin:6px 0 0}
.hint.warn{color:var(--ink);background:var(--warn-bg);border-radius:6px;padding:6px 8px}
.where{font-size:14px;margin:4px 0 0;color:var(--ink)}
input[type=range]{width:100%;accent-color:var(--target)}
.big{font-family:"Barlow Semi Condensed","Arial Narrow",sans-serif;font-weight:700;font-size:30px;line-height:1}
.big small{font-family:"Barlow",sans-serif;font-weight:500;font-size:14px;color:var(--ink-2);margin-left:6px}
.check{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink);margin:0}
.status{border-radius:8px;padding:10px 12px;font-size:14px;margin-bottom:12px}
.status.ok{background:var(--ok-bg)}
.status.warn{background:var(--warn-bg)}
.status.bad{background:var(--bad-bg)}
.status strong{display:block;font-weight:600}
dl.stats{display:grid;grid-template-columns:auto 1fr;gap:4px 14px;margin:0;font-size:14px}
dl.stats dt{color:var(--ink-2)}
dl.stats dd{margin:0;font-variant-numeric:tabular-nums}
.coord{font-family:"JetBrains Mono",ui-monospace,Menlo,Consolas,monospace;font-size:13px}
.targetbox{border:1.5px solid var(--target);border-radius:8px;padding:10px 12px;margin-bottom:12px}
.targetbox .coord{font-size:15px}
.tablewrap{overflow-x:auto;max-height:420px;overflow-y:auto;border:1px solid var(--line);border-radius:8px}
table{border-collapse:collapse;width:100%;font-size:13px}
th,td{padding:6px 10px;text-align:left;white-space:nowrap}
th{position:sticky;top:0;background:var(--panel);font-weight:600;color:var(--ink-2);border-bottom:1px solid var(--line)}
td.n{color:var(--excl);font-weight:600}
td.empty{color:var(--ink-2)}
dd.warnTxt,.warnTxt{color:var(--excl);font-weight:600}
.muted{color:var(--ink-2)}
td.addr{white-space:normal;min-width:240px;font-size:12.5px}
.addrline-txt{font-size:13px;margin-top:4px}
.addrline-txt:empty{display:none}
button:disabled{opacity:.6;cursor:default}
path.addrline{stroke:var(--ink);stroke-width:1.5;stroke-dasharray:3 3;fill:none}
path.addrpt{stroke:var(--panel);stroke-width:2;fill:var(--ink);fill-opacity:1}
path.addrpt.moved{fill:var(--leak)}
path.addrpt.street{fill:var(--leak)}
path.addrpt.far{fill:var(--ink-2);fill-opacity:.8}
path.addrline.far{stroke:var(--ink-2);opacity:.7}
path.excl.moved{stroke:var(--leak);stroke-dasharray:6 4;fill:none}
.movedTxt{color:var(--leak);font-weight:600}
tr+tr td{border-top:1px solid var(--line)}
.btns{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0 8px}
button{font:inherit;font-weight:600;font-size:14px;border-radius:6px;padding:8px 14px;cursor:pointer;border:1px solid var(--line);background:var(--field);color:var(--ink)}
button.primary{background:var(--target);border-color:var(--target);color:var(--panel)}
textarea{min-height:120px;resize:vertical}
.searchrow{display:flex;gap:8px}
.searchrow input{flex:1}
.results{list-style:none;margin:6px 0 0;padding:0;border:1px solid var(--line);border-radius:6px;max-height:220px;overflow-y:auto}
.results:empty{display:none}
.results li.msg{padding:8px 10px;font-size:13.5px;color:var(--ink-2)}
.results li button{display:block;width:100%;text-align:left;font-weight:400;border:none;border-radius:0;background:var(--panel);padding:8px 10px;font-size:13.5px}
.results li+li{border-top:1px solid var(--line)}
.results li button:hover{background:var(--field)}
.copied{font-size:13px;color:var(--target);min-height:1.2em}
.mt{margin-top:14px}
footer{font-size:12.5px;color:var(--ink-2);border-top:1px solid var(--line);padding-top:14px}
footer p{margin:0 0 6px}
footer a{color:var(--ink)}

/* map overlays */
.mapnote{position:absolute;left:10px;bottom:28px;z-index:1000;background:var(--panel);color:var(--ink-2);
  border:1px solid var(--line);border-radius:6px;padding:6px 10px;font-size:12.5px;max-width:280px;pointer-events:none}
.mapnote.top{top:10px;bottom:auto}
.legend{position:absolute;left:10px;top:10px;z-index:1000;background:var(--panel);border:1px solid var(--line);
  border-radius:6px;padding:8px 10px;font-size:12.5px;color:var(--ink)}
.legend div{display:flex;align-items:center;gap:8px;margin:2px 0}
.sw{width:14px;height:14px;border-radius:50%;flex:none}
.sw.t{background:var(--target-fill);border:2px solid var(--target)}
.sw.m{border:2px dashed var(--target)}
.sw.x{background:var(--excl-fill);border:2px solid var(--excl)}
.sw.l{background:var(--leak);border-radius:2px}

.leaflet-container{font-family:inherit;background:var(--water)}
.leaflet-grab{cursor:crosshair}
.leaflet-dragging .leaflet-grab{cursor:grabbing}
.leaflet-bar a{width:34px;height:34px;line-height:34px;color:var(--ink);background:var(--panel)}
.leaflet-control-layers{background:var(--panel);color:var(--ink);border-radius:6px}
.leaflet-control-attribution{background:color-mix(in srgb,var(--panel) 85%,transparent)!important;color:var(--ink-2)}
.leaflet-control-attribution a{color:var(--ink)}
path.mincircle{stroke:var(--target);stroke-width:2;stroke-dasharray:7 6;fill:none}
path.excl{stroke:var(--excl);stroke-width:1.8;fill:var(--excl-fill);fill-opacity:1}
path.core{stroke:var(--target);stroke-width:2;fill:var(--target-fill);fill-opacity:1}
path.leak{stroke:var(--leak);stroke-width:2.5;fill:none}
.pin{width:22px;height:22px;border-radius:50%;background:var(--target);border:3px solid var(--panel);box-shadow:0 0 0 2px var(--target);cursor:grab}
.xnum{transform:translate(-50%,-50%);display:inline-block;min-width:20px;height:20px;border-radius:10px;background:var(--excl);color:var(--panel);font-size:11px;font-weight:600;text-align:center;line-height:20px;padding:0 4px}
.xnum.xh{transform:none;width:24px;min-width:24px;height:24px;line-height:24px;border-radius:12px;padding:0;cursor:grab;box-shadow:0 0 0 2px var(--panel)}
.xnum.xh.edited{background:var(--leak)}
.leaflet-dragging .xnum.xh{cursor:grabbing}
.hide-xnum .xnum.xh{transform:scale(.55);font-size:0}
path.excl.edited{stroke-width:2.8}
.seg{display:flex;gap:6px;flex-wrap:wrap;margin:0 0 12px}
.seg label{display:flex;align-items:center;gap:6px;margin:0;font-size:14px;color:var(--ink);border:1px solid var(--line);border-radius:6px;padding:6px 10px;background:var(--field);cursor:pointer}
.seg label:has(input:checked){border-color:var(--target);background:var(--ok-bg)}
path.shape{stroke:var(--target);stroke-width:2.5;fill:var(--target-fill);fill-opacity:1}
path.shape.pending,path.shape.preview{stroke-dasharray:6 4;fill-opacity:.5}
path.leakarea{stroke:none;fill:var(--leak);fill-opacity:.45}
path.incpt{stroke:var(--panel);stroke-width:3;fill:var(--target);fill-opacity:1}
path.draftline{stroke:var(--target);stroke-width:2.5;fill:none}
path.draftline.rubber{stroke-dasharray:4 4}
path.draftpt{stroke:var(--panel);stroke-width:2;fill:var(--target);fill-opacity:1}
path.draftpt.first{cursor:pointer}
.drawing.leaflet-container,.drawing .leaflet-grab{cursor:crosshair}
.vtx{display:block;width:14px;height:14px;background:var(--panel);border:2.5px solid var(--target);border-radius:3px;cursor:move}
.vtx.mid{width:12px;height:12px;border-width:2px;border-radius:50%;opacity:.7;cursor:copy}

@media (max-width:820px){
  html,body{height:auto}
  .app{grid-template-columns:1fr;height:auto}
  #map{height:56vh;height:56svh}
  .panel{border-left:none;border-top:1px solid var(--line);overflow:visible}
  .legend{font-size:12px}
}