:root {
  --bg: #14161c;
  --panel: #1d2129;
  --panel2: #262c37;
  --line: #353d4a;
  --text: #d8dde6;
  --muted: #8a93a3;
  --accent: #5b9dff;
  --accent2: #3b6fc4;
  --danger: #e25555;
  --good: #46c46e;
}
* { box-sizing: border-box; }
html, body {
  margin: 0; height: 100%; overflow: hidden;
  font-family: "Segoe UI", system-ui, sans-serif;
  background: var(--bg); color: var(--text);
  font-size: 13px;
}
#app { display: flex; flex-direction: column; height: 100%; }

/* Top bar */
#topbar {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 12px; background: var(--panel);
  border-bottom: 1px solid var(--line); flex-wrap: wrap;
}
#topbar .title { font-weight: 700; letter-spacing: .3px; margin-right: 6px; }
#topbar .spacer { flex: 1; }
button, select, input[type=text], textarea {
  font-family: inherit; font-size: 12px;
  background: var(--panel2); color: var(--text);
  border: 1px solid var(--line); border-radius: 5px;
  padding: 5px 9px; cursor: pointer; outline: none;
}
button:hover { border-color: var(--accent2); }
button.active { background: var(--accent2); border-color: var(--accent); color: #fff; }
button.danger { color: var(--danger); }
button.danger:hover { background: var(--danger); color:#fff; border-color: var(--danger); }
button:disabled { opacity: .35; cursor: default; }
input[type=text], textarea { cursor: text; }
select { cursor: pointer; }
.seg { display: inline-flex; border: 1px solid var(--line); border-radius: 5px; overflow: hidden; }
.seg button { border: none; border-radius: 0; border-right: 1px solid var(--line); }
.seg button:last-child { border-right: none; }

/* Main area */
#main { flex: 1; display: flex; min-height: 0; }
#viewport {
  position: relative; flex: 1; overflow: hidden;
  background: radial-gradient(circle at 50% 50%, #181b22, #0f1115);
  cursor: grab;
}
#viewport.panning { cursor: grabbing; }
#viewport.linkmode { cursor: crosshair; }
#world { position: absolute; top: 0; left: 0; transform-origin: 0 0; }
#gridcanvas { position: absolute; top: 0; left: 0; }
#svglayer { position: absolute; top: 0; left: 0; overflow: visible; pointer-events: none; }

.room {
  position: absolute; transform: translate(-50%, -50%);
  border-radius: 8px; border: 2px solid rgba(255,255,255,.25);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; cursor: pointer; user-select: none;
  box-shadow: 0 3px 8px rgba(0,0,0,.45);
  overflow: visible; color: #11141a; font-weight: 600;
}
.room .rname {
  padding: 2px 4px; line-height: 1.1; overflow: hidden;
  text-overflow: ellipsis; max-width: 100%;
  display: flex; align-items: center; justify-content: center; height: 100%; width:100%;
}
.room.has-image .rname { color: #fff; text-shadow: 0 1px 3px rgba(0,0,0,.9), 0 0 6px rgba(0,0,0,.7); }
.room.selected { border-color: #fff; box-shadow: 0 0 0 3px var(--accent), 0 3px 10px rgba(0,0,0,.6); }
.room.linktarget { outline: 2px dashed var(--good); outline-offset: 2px; }
.room.linksource { outline: 3px solid var(--good); outline-offset: 2px; }
.room.searchhit { outline: 3px solid #f1c84a; outline-offset: 3px; }
.room.pathhit { box-shadow: 0 0 0 3px #e87cc4, 0 3px 10px rgba(0,0,0,.6); }
/* onion-skin ghost of the layer below */
.room.ghost {
  opacity: .30; filter: saturate(.6); pointer-events: none;
  box-shadow: none; border-style: dashed;
}
/* layer-above ghost: brighter dashed ring so it reads differently from below */
.room.ghost.above { border-style: dotted; border-color: #7fd0ff; filter: saturate(.6) brightness(1.1); }

.vbadge {
  position: absolute; min-width: 18px; height: 18px; padding: 0 3px; border-radius: 9px;
  background: #11141a; color: #fff; font-size: 10px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid rgba(255,255,255,.55); cursor: pointer; z-index: 5; gap: 1px;
}
.vbadge:hover { background: var(--accent); }
.vbadge.up { top: -9px; right: -9px; }
.vbadge.down { bottom: -9px; right: -9px; }
.vbadge.fly { border-color: #3cc4b8; color: #3cc4b8; }
.vbadge.train { bottom: -9px; left: -9px; font-size: 9px; }

.exitlabel {
  font-size: 10px; fill: var(--muted); font-weight: 700;
  paint-order: stroke; stroke: #0f1115; stroke-width: 3px;
}

/* Inspector */
#inspector {
  width: 290px; background: var(--panel); border-left: 1px solid var(--line);
  display: flex; flex-direction: column; overflow-y: auto;
}
#inspector h3 { margin: 0; padding: 10px 12px; font-size: 12px;
  text-transform: uppercase; letter-spacing: .6px; color: var(--muted);
  border-bottom: 1px solid var(--line); }
.insec { padding: 10px 12px; border-bottom: 1px solid var(--line); }
.field { margin-bottom: 9px; }
.field label { display: block; font-size: 11px; color: var(--muted); margin-bottom: 3px; }
.field input[type=text], .field textarea, .field select { width: 100%; }
.field textarea { resize: vertical; min-height: 60px; }
/* Room panel: let the description grow to fill leftover sidebar space, so Delete Room
   sits at the bottom instead of leaving a dead gap (only applies to the room-info section). */
.insec-info { flex: 1 1 auto; display: flex; flex-direction: column; min-height: 0; }
.field-grow { flex: 1 1 auto; display: flex; flex-direction: column; min-height: 60px; }
.field-grow textarea { flex: 1 1 auto; min-height: 40px; resize: none; }   /* height now follows the layout, not a manual drag */
.empty-note { padding: 16px 12px; color: var(--muted); line-height: 1.5; }
.seclabel { font-size:11px; color:var(--muted); display:block; margin-bottom:6px; }

.swatches { display: flex; gap: 6px; flex-wrap: wrap; }
.swatch { width: 22px; height: 22px; border-radius: 5px; cursor: pointer; border: 2px solid transparent; }
.swatch.sel { border-color: #fff; box-shadow: 0 0 0 2px var(--accent); }

/* Compass + vertical carve rose */
.rose { display: grid; grid-template-columns: repeat(3, 1fr); gap: 4px; }
.rose button { padding: 6px 0; font-size: 11px; }
.rose .center { display:flex; flex-direction:column; gap:3px; }
.rose .center button { padding: 3px 0; font-size: 10px; }
.ud-row { display:flex; gap:4px; margin-top:4px; }
.ud-row button { flex:1; padding:6px 0; }
.ud-row button.up { color: var(--good); }
.ud-row button.down { color: var(--accent); }

.exitrow { display: flex; align-items: center; gap: 6px; padding: 3px 0; border-bottom: 1px solid #232833; }
.exitrow .dir { font-weight: 700; width: 38px; color: var(--accent); }
.exitrow .tgt { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; cursor: pointer; }
.exitrow .tgt:hover { color: var(--accent); text-decoration: underline; }
.exitrow button { padding: 2px 6px; font-size: 11px; }
#f_img_wrap { margin: -3px 0 9px; }
#f_img_wrap img { display: block; width: 100%; max-height: 140px; object-fit: contain;
  border-radius: 6px; background: #0f1115; }
#f_img_wrap .imgerr { font-size: 11px; color: var(--danger); }
.flytoggle { opacity: .4; }
.flytoggle.on { opacity: 1; color: #3cc4b8; border-color: #3cc4b8; }

/* 3D view */
#canvas3d { flex: 1; min-width: 0; min-height: 0; display: none; cursor: grab; background:
  radial-gradient(circle at 50% 40%, #181b22, #0e1014); }
#canvas3d.active { display: block; }
#canvas3d.dragging { cursor: grabbing; }

/* Popovers (legend, onion) */
.popover {
  position: fixed; z-index: 100; background: var(--panel); border: 1px solid var(--line);
  border-radius: 8px; padding: 10px 12px; box-shadow: 0 8px 24px rgba(0,0,0,.6);
  display: none; font-size: 12px; min-width: 200px;
}
.pop-hdr { font-weight: 700; margin-bottom: 8px; display: flex; align-items: center; justify-content: space-between; }
.popclose { padding: 1px 6px; font-size: 12px; }
.poprow { display: flex; align-items: center; gap: 8px; margin: 6px 0; }
.poprow input[type=range] { flex: 1; }
.legendrow { display: flex; align-items: center; gap: 8px; margin: 5px 0; }
.legendrow .sw { width: 20px; height: 20px; border-radius: 4px; flex: none; border: 1px solid rgba(255,255,255,.3); }
.legendrow input[type=text] { flex: 1; }
.legendrow .cnt { color: var(--muted); min-width: 26px; text-align: right; font-variant-numeric: tabular-nums; }
#statsPanel { max-width: 280px; max-height: 72vh; overflow-y: auto; }
.statline { font-size: 12px; margin-bottom: 4px; }
.stathdr { font-size: 10px; text-transform: uppercase; letter-spacing: .5px; color: var(--muted);
  margin: 8px 0 3px; border-top: 1px solid var(--line); padding-top: 6px; }
.statrow { display: flex; justify-content: space-between; gap: 10px; font-size: 12px; padding: 2px 0; }
.statrow .val { color: var(--muted); font-variant-numeric: tabular-nums; }
.statrow .dot { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 6px; vertical-align: middle; }
#exportPanel, #importPanel { max-width: 260px; max-height: 80vh; overflow-y: auto; }
.expsec { margin-bottom: 10px; }
.explabel { font-size: 10px; text-transform: uppercase; letter-spacing: .5px; color: var(--muted); margin-bottom: 4px; }
.checklist { max-height: 130px; overflow-y: auto; border: 1px solid var(--line); border-radius: 5px; padding: 4px 6px; }
.checklist label { display: flex; align-items: center; gap: 7px; padding: 2px 0; font-size: 12px; cursor: pointer; }
.checklist .cnt { margin-left: auto; color: var(--muted); font-variant-numeric: tabular-nums; }
.expcount { font-size: 12px; color: var(--accent); font-weight: 700; margin: 6px 0 8px; }
#importSummary { font-size: 12px; margin-bottom: 10px; line-height: 1.5; }
/* marquee box-select rectangle (screen space) */
#marquee {
  position: fixed; z-index: 80; display: none; pointer-events: none;
  border: 1px solid var(--accent); background: rgba(91,157,255,.15);
}
#marquee.all { border: 1px dashed var(--good); background: rgba(70,196,110,.15); }
#marquee.areadraw { border: 2px dashed var(--accent); background: rgba(91,157,255,.12); }

/* Areas (zone annotations; fill + outline drawn on the SVG layer, label/handle are DOM) */
.area-label {
  position: absolute; font-size: 11px; font-weight: 700; color: #11141a; pointer-events: none;
  padding: 1px 7px; border-radius: 6px 0 6px 0; max-width: 200px;
  overflow: hidden; white-space: nowrap; text-overflow: ellipsis;
}
.area-label.selected { outline: 2px solid var(--accent); }
.area-resize {
  position: absolute; margin: -6px 0 0 -6px; width: 12px; height: 12px;
  background: #fff; border: 1px solid #333; border-radius: 2px; cursor: nwse-resize; display: none;
}
#viewport.areamode { cursor: crosshair; }
#viewport.areamode .room { pointer-events: none; }
#viewport.areamode .area-resize { display: block; }
#viewport.transitmode { cursor: crosshair; }

/* Direction picker popup */
#dirpicker {
  position: fixed; z-index: 100; background: var(--panel); border: 1px solid var(--line);
  border-radius: 8px; padding: 10px; box-shadow: 0 8px 24px rgba(0,0,0,.6); display: none;
}
#dirpicker .hdr { font-size: 11px; color: var(--muted); margin-bottom: 8px; }
#dirpicker .grid3 { display: grid; grid-template-columns: repeat(3,46px); gap: 5px; }
#dirpicker button { padding: 8px 0; }

/* Ride-to picker (train badge click) */
#ridePicker {
  position: fixed; z-index: 100; background: var(--panel); border: 1px solid var(--line);
  border-radius: 8px; padding: 10px; box-shadow: 0 8px 24px rgba(0,0,0,.6); display: none;
  min-width: 180px; max-width: 260px;
}
#ridePicker .hdr { font-size: 11px; color: var(--muted); margin-bottom: 6px; }
.ride-linehdr { font-size: 11px; font-weight: 700; margin: 6px 0 3px; }
.ride-stop { display: block; width: 100%; text-align: left; margin-bottom: 3px; }
.ride-stop.ride-stub { color: var(--muted); font-style: italic; cursor: default; background: none; border: none; padding: 2px 0; }

/* Transit line panel */
#transitPanel { width: 420px; max-width: 90vw; max-height: 80vh; overflow: auto; resize: both; min-width: 260px; min-height: 160px; }
.transline { border: 1px solid var(--line); border-radius: 6px; padding: 8px; margin-bottom: 8px; }
.transline.active { border-color: var(--good); }
.transline-hdr { display: flex; align-items: center; gap: 6px; margin-bottom: 6px; }
.transline-hdr .sw { width: 16px; height: 16px; border-radius: 4px; flex: none; }
.transline-hdr .tl-name { flex: 1; min-width: 0; }
.transline-hdr .cnt { color: var(--muted); font-size: 11px; white-space: nowrap; }
.transline-hdr .tl-active, .transline-hdr .tl-del { padding: 3px 7px; font-size: 11px; }
.tl-dirlabels { display: flex; gap: 6px; margin: 6px 0 2px; }
.tl-dirlabels input { flex: 1; min-width: 0; }
.tl-stations { margin-top: 4px; }
.tl-station { display: flex; align-items: center; gap: 6px; padding: 2px 0; font-size: 12px; }
.tl-station.stub .tl-stopname { color: var(--muted); font-style: italic; }
.tl-station .tl-stopnum { color: var(--muted); min-width: 16px; text-align: right; }
.tl-station .tl-stopname { flex: 1; min-width: 0; white-space: normal; word-break: break-word; }
.tl-station .tl-dirhint { color: var(--muted); font-size: 10px; white-space: nowrap; }
.tl-station button { padding: 1px 6px; font-size: 10px; }

#searchBox { width: 150px; }
#pathResult {
  position: fixed; bottom: 16px; left: 50%; transform: translateX(-50%);
  background: var(--panel); border: 1px solid var(--line); border-radius: 8px;
  padding: 10px 14px; box-shadow: 0 8px 24px rgba(0,0,0,.6); display: none;
  max-width: 72%; z-index: 90; font-size: 12px;
}
#pathResult .pathdirs { margin: 6px 0; color: #e87cc4; line-height: 2; }
.pathgroup { display: inline-flex; align-items: center; gap: 6px;
  background: rgba(232,124,196,.12); border: 1px solid rgba(232,124,196,.35);
  border-radius: 6px; padding: 2px 4px 2px 8px; margin: 3px 2px; }
.pathwords { font-weight: 700; }
.pathcopy { padding: 1px 6px; font-size: 11px; font-weight: 400; }
.pathsep { color: var(--muted); margin: 0 2px; }
.flystep { color: #3cc4b8; }
.flystep::after { content: "\2708"; font-size: .8em; margin-left: 2px; opacity: .9; }
#pathResult .trainstep { margin: 6px 0; padding: 4px 8px; background: rgba(91,157,255,.12);
  border: 1px solid rgba(91,157,255,.35); border-radius: 6px; color: var(--text); font-size: 12px; }
#pathResult .flychk { display: inline-flex; align-items: center; gap: 5px; font-size: 11px; color: var(--muted); margin: 4px 0; cursor: pointer; }
#pathResult button { margin-top: 4px; }
.hint { color: var(--muted); font-size: 11px; }
.statuschip { font-size: 11px; color: var(--muted); }
#zoomctl { display: inline-flex; align-items: center; gap: 4px; }
.iconbtn { width: 28px; padding: 5px 0; text-align: center; }
#layerLabel { min-width: 64px; text-align: center; font-weight: 700; }