:root {
  color-scheme: light dark;
  --cell-size: 58px;
  --bg: #111827;
  --panel: #1f2937;
  --muted: #9ca3af;
  --text: #f9fafb;
  --line: #374151;
  --open: #86efac;
  --visited: #93c5fd;
  --current: #fbbf24;
  --wall: #f8fafc;
  --unknown: #4b5563;
  --danger: #fca5a5;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
}
button, input, select, textarea { font: inherit; }
button, .file-label {
  border: 1px solid var(--line);
  background: #273449;
  color: var(--text);
  border-radius: 8px;
  padding: 8px 10px;
  cursor: pointer;
}
button:hover, .file-label:hover { background: #334155; }
button.primary { background: #2563eb; border-color: #3b82f6; }
button.danger { background: #7f1d1d; border-color: #b91c1c; }
input, select, textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #0f172a;
  color: var(--text);
  padding: 8px;
}
textarea { min-height: 74px; resize: vertical; }
label { display: grid; gap: 5px; color: var(--muted); font-size: 13px; }
h1, h2, h3 { margin: 0; }

.app {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 370px;
  min-height: 100vh;
}
.main { padding: 16px; min-width: 0; display: grid; gap: 16px; align-content: start; }
.side {
  border-left: 1px solid var(--line);
  background: var(--panel);
  padding: 16px;
  overflow: visible;
  min-height: 100vh;
  align-self: stretch;
}
.topbar, .tabs, .row, .actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.inline-check {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--muted);
  font-size: 13px;
}
.inline-check input { margin: 0; accent-color: var(--visited); }
.inline-check span { white-space: nowrap; }
.zoom-controls { display: inline-flex; gap: 6px; align-items: center; }
.zoom-value { min-width: 48px; text-align: center; color: var(--muted); font-variant-numeric: tabular-nums; }
.map-zoom {
  position: absolute;
  top: 10px;
  right: 10px;
  z-index: 10;
  display: inline-flex;
  gap: 6px;
  align-items: center;
  padding: 6px 8px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(15, 23, 42, .9);
  backdrop-filter: blur(4px);
}
.topbar { justify-content: space-between; margin-bottom: 12px; }
.tabs { margin-bottom: 12px; }
.tab-wrap { display: inline-flex; align-items: center; gap: 4px; border: 1px solid var(--line); border-radius: 8px; background: #273449; padding-right: 4px; }
.tab.active { background: #2563eb; border-color: #60a5fa; }
.tab-wrap.active { background: #2563eb; border-color: #60a5fa; }
.tab-wrap .tab { border: 0; background: transparent; }
.tab-close { min-width: 24px; height: 24px; padding: 0; display: inline-grid; place-items: center; border-radius: 6px; }
.hint { color: var(--muted); font-size: 13px; line-height: 1.35; }
.grid-wrap {
  position: relative;
  height: calc(100vh - 112px);
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 14px;
  background-image: linear-gradient(#172033 1px, transparent 1px), linear-gradient(90deg, #172033 1px, transparent 1px);
  background-size: var(--cell-size) var(--cell-size);
  padding: 36px;
}
.grid {
  display: grid;
  gap: 0;
  width: max-content;
  margin: auto;
}
.cell {
  position: relative;
  width: var(--cell-size);
  height: var(--cell-size);
  border: 2px dashed var(--unknown);
  background: #182235;
  display: grid;
  place-items: center;
  color: #0f172a;
  user-select: none;
}
.cell.discovered { background: var(--open); }
.cell.visited { background: var(--visited); }
.cell.current { background: var(--current); }
.cell-focus { position: absolute; inset: 4px; pointer-events: none; z-index: 2; border-radius: 6px; }
.cell.current .cell-focus { box-shadow: inset 0 0 0 3px #fde68a; }
.cell.selected .cell-focus { box-shadow: inset 0 0 0 4px #f97316; }
.cell.current.selected .cell-focus { box-shadow: inset 0 0 0 3px #fde68a, inset 0 0 0 6px #f97316; }
.edge { position: absolute; pointer-events: none; z-index: 3; border-radius: 0; }
.edge-n, .edge-s { left: -5px; width: calc(100% + 10px); }
.edge-e, .edge-w { top: -5px; height: calc(100% + 10px); }
.edge-wall { background: #0f172a; z-index: 6; }
.edge-open { background: rgba(74, 222, 128, .65); z-index: 4; }
.edge-locked { background: transparent; z-index: 6; }
.edge-locked::before, .edge-locked::after { content: ""; position: absolute; display: block; }
.edge-wall.edge-n { top: -7px; height: 10px; }
.edge-wall.edge-s { bottom: -7px; height: 10px; }
.edge-wall.edge-w { left: -7px; width: 10px; }
.edge-wall.edge-e { right: -7px; width: 10px; }
.edge-open.edge-n { top: -3px; height: 2px; }
.edge-open.edge-s { bottom: -3px; height: 2px; }
.edge-open.edge-w { left: -3px; width: 2px; }
.edge-open.edge-e { right: -3px; width: 2px; }
.edge-locked.edge-n { top: -4px; height: 4px; }
.edge-locked.edge-s { bottom: -4px; height: 4px; }
.edge-locked.edge-w { left: -4px; width: 4px; }
.edge-locked.edge-e { right: -4px; width: 4px; }
.edge-locked.edge-n::before, .edge-locked.edge-s::before {
  width: 20px;
  height: 10px;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  background: #f59e0b;
  border: 2px solid #78350f;
  border-radius: 5px;
}
.edge-locked.edge-w::before, .edge-locked.edge-e::before {
  width: 10px;
  height: 20px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: #f59e0b;
  border: 2px solid #78350f;
  border-radius: 5px;
}
.edge-locked.edge-n::after, .edge-locked.edge-s::after {
  width: 3px;
  height: 5px;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  background: #78350f;
  border-radius: 999px;
}
.edge-locked.edge-w::after, .edge-locked.edge-e::after {
  width: 5px;
  height: 3px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: #78350f;
  border-radius: 999px;
}
.coords { position: absolute; bottom: 2px; right: 4px; font-size: 10px; color: #1f2937; }
.icons {
  position: absolute;
  inset: 10px 10px 18px 10px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(3, 1fr);
  justify-items: center;
  align-items: center;
  pointer-events: none;
}
.icons.count-1 .mark:nth-child(1) { grid-column: 2; grid-row: 2; }
.icons.count-2 .mark:nth-child(1) { grid-column: 1; grid-row: 1; }
.icons.count-2 .mark:nth-child(2) { grid-column: 3; grid-row: 3; }
.icons.count-3 .mark:nth-child(1) { grid-column: 1; grid-row: 1; }
.icons.count-3 .mark:nth-child(2) { grid-column: 2; grid-row: 2; }
.icons.count-3 .mark:nth-child(3) { grid-column: 3; grid-row: 3; }
.icons.count-4 .mark:nth-child(1) { grid-column: 1; grid-row: 1; }
.icons.count-4 .mark:nth-child(2) { grid-column: 3; grid-row: 1; }
.icons.count-4 .mark:nth-child(3) { grid-column: 1; grid-row: 3; }
.icons.count-4 .mark:nth-child(4) { grid-column: 3; grid-row: 3; }
.icons.count-5 .mark:nth-child(1) { grid-column: 1; grid-row: 1; }
.icons.count-5 .mark:nth-child(2) { grid-column: 3; grid-row: 1; }
.icons.count-5 .mark:nth-child(3) { grid-column: 2; grid-row: 2; }
.icons.count-5 .mark:nth-child(4) { grid-column: 1; grid-row: 3; }
.icons.count-5 .mark:nth-child(5) { grid-column: 3; grid-row: 3; }
.icons.count-6 .mark:nth-child(1) { grid-column: 1; grid-row: 1; }
.icons.count-6 .mark:nth-child(2) { grid-column: 2; grid-row: 1; }
.icons.count-6 .mark:nth-child(3) { grid-column: 3; grid-row: 1; }
.icons.count-6 .mark:nth-child(4) { grid-column: 1; grid-row: 3; }
.icons.count-6 .mark:nth-child(5) { grid-column: 2; grid-row: 3; }
.icons.count-6 .mark:nth-child(6) { grid-column: 3; grid-row: 3; }
.mark {
  width: 12px;
  height: 12px;
  border-radius: 5px;
  display: inline-grid;
  place-items: center;
  border: 2px solid #111827;
  position: relative;
}
.mark::before, .mark::after { content: ""; position: absolute; display: block; }
.mark-empty { border-style: dashed; background: transparent; opacity: .75; }
.mark-joke { background: #facc15; border-radius: 50%; }
.mark-joke::before, .mark-joke::after { width: 3px; height: 3px; top: 5px; background: #111827; border-radius: 50%; }
.mark-joke::before { left: 5px; }
.mark-joke::after { right: 5px; }
.mark-happy { background: #22c55e; transform: rotate(45deg); border-radius: 3px; }
.mark-happy::before { width: 7px; height: 7px; left: 3px; top: 3px; border-left: 2px solid #111827; border-bottom: 2px solid #111827; }
.mark-event { background: #fb923c; border-radius: 4px; }
.mark-event::before { width: 3px; height: 7px; left: 50%; top: 2px; transform: translateX(-50%); background: #111827; border-radius: 999px; }
.mark-event::after { width: 3px; height: 3px; left: 50%; bottom: 2px; transform: translateX(-50%); background: #111827; border-radius: 999px; }
.mark-bad { background: #ef4444; clip-path: polygon(50% 3%, 97% 97%, 3% 97%); border: 0; }
.mark-bad::before { width: 3px; height: 8px; left: 8px; top: 6px; background: #111827; }
.mark-bad::after { width: 3px; height: 3px; left: 8px; bottom: 2px; background: #111827; }
.mark-item { background: #8b5cf6; border-radius: 50% 50% 5px 5px; }
.mark-item::before { width: 8px; height: 5px; top: 3px; border: 2px solid #111827; border-bottom: 0; border-radius: 8px 8px 0 0; }
.mark-tp-out { background: #38bdf8; border-radius: 50%; }
.mark-tp-out::before { width: 8px; height: 8px; border: 2px solid #111827; border-left-color: transparent; border-radius: 50%; top: 3px; left: 3px; }
.mark-tp-out-resolved { background: #38bdf8; border-radius: 50%; border-color: #22c55e; box-shadow: 0 0 0 1px #14532d; }
.mark-tp-out-resolved::before { width: 8px; height: 8px; border: 2px solid #111827; border-left-color: transparent; border-radius: 50%; top: 3px; left: 3px; }
.mark-tp-in { background: #f472b6; border-radius: 50%; }
.mark-tp-in::before { width: 0; height: 0; border-top: 5px solid transparent; border-bottom: 5px solid transparent; border-left: 8px solid #111827; left: 6px; top: 2px; }
.mark-code {
  position: absolute;
  bottom: -6px;
  right: -6px;
  min-width: 10px;
  height: 10px;
  padding: 0 2px;
  display: inline-grid;
  place-items: center;
  border-radius: 999px;
  background: #f8fafc;
  border: 1px solid #111827;
  color: #111827;
  font-size: 7px;
  font-weight: 900;
  line-height: 1;
  z-index: 3;
}
.mark-label { display: inline-flex; gap: 5px; align-items: center; }
.legend { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 8px; margin: 0; }
.legend-item { display: flex; align-items: center; gap: 8px; padding: 8px 10px; border: 1px solid var(--line); border-radius: 10px; background: #172033; color: var(--muted); }
.legend-item .mark { flex: 0 0 auto; }
.legend-title { margin: 0 0 10px; }
.panel { border: 1px solid var(--line); border-radius: 12px; padding: 12px; margin: 12px 0; background: #172033; }
.doors { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; align-items: stretch; }
.door-toggle {
  min-height: 72px;
  display: grid;
  gap: 4px;
  place-items: center;
  text-align: center;
  border-radius: 12px;
  border: 2px solid var(--line);
  background: #0f172a;
  color: var(--text);
  padding: 8px;
  font-weight: 700;
}
.door-toggle small { font-size: 11px; color: var(--muted); font-weight: 600; }
.door-toggle strong { font-size: 13px; }
.door-toggle em { font-size: 11px; color: #fde68a; font-style: normal; font-weight: 700; }
.door-toggle[data-state="unknown"] { background: #1f2937; border-style: dashed; }
.door-toggle[data-state="open"] { background: #14532d; border-color: #4ade80; }
.door-toggle[data-state="closed"] { background: #3f3f46; border-color: var(--wall); box-shadow: inset 0 0 0 1px #111827; }
.door-toggle[data-state="locked"] { background: #78350f; border-color: #f59e0b; box-shadow: inset 0 0 0 1px #111827; }
.door-toggle.north { grid-column: 2; }
.door-toggle.west { grid-column: 1; grid-row: 2; }
.door-toggle.center { grid-column: 2; grid-row: 2; cursor: default; background: #172033; }
.door-toggle.east { grid-column: 3; grid-row: 2; }
.door-toggle.south { grid-column: 2; grid-row: 3; }
.move-pad { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.move-pad .north { grid-column: 2; }
.move-pad .west { grid-column: 1; grid-row: 2; }
.move-pad .east { grid-column: 3; grid-row: 2; }
.move-pad .south { grid-column: 2; grid-row: 3; }
.stack { display: grid; gap: 10px; }
.case-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.door-key { display: grid; gap: 4px; }
.note-index-controls { display: grid; grid-template-columns: 1fr; gap: 8px; }
.note-index-list { display: grid; gap: 6px; max-height: 420px; overflow: auto; }
.note-row {
  width: 100%;
  text-align: left;
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr) 92px 64px;
  gap: 8px;
  align-items: center;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #0f172a;
  color: var(--text);
}
.note-row small { color: var(--muted); }
.note-type { display: inline-flex; align-items: center; gap: 6px; min-width: 0; }
.note-label { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.note-coords { color: var(--muted); font-variant-numeric: tabular-nums; }
.help-list { margin: 0; padding-left: 18px; display: grid; gap: 6px; color: var(--muted); }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.list { display: grid; gap: 6px; margin-top: 8px; }
.pill { padding: 6px 8px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); font-size: 12px; }
.hidden { display: none; }
@media (max-width: 900px) { .app { grid-template-columns: 1fr; } .side { max-height: none; border-left: 0; border-top: 1px solid var(--line); } }