:root {
  color-scheme: light;
  --ui-bg: #f4f1ea;
  --panel: #fffaf0;
  --line: #c7bca8;
  --ink: #24211d;
  --muted: #6e675f;
  --accent: #2f6f9f;
  --accent-2: #d6684a;
  --button: #eee5d7;
  --button-active: #b9d39a;
  --danger: #b9473d;
  --topbar-bg: #fbf7ee;
  --mode-bg: #eee5d7;
  --mode-active-bg: #ffffff;
  --rail-bg: #ebe7df;
  --canvas-pane-bg: #d9d3c8;
  --canvas-bg: #eadfcf;
  --canvas-border: #8f8172;
  --inspector-bg: #f6f0e5;
  --input-bg: #fffdf8;
  --kbd-bg: #fffaf0;
  --tile-panel-bg: #f4ecd9;
  --status-bg: #302b26;
  --status-ink: #f8efe2;
  --validation-bg: #fff2ef;
  --warning-bg: #fff7d8;
  --warning-ink: #705c15;
  --active-border: #6e8f50;
  --stage-active-bg: #d8c4ee;
  --stage-active-border: #7a4fa3;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --ui-bg: #15181d;
  --panel: #222831;
  --line: #3b4654;
  --ink: #eef2f5;
  --muted: #aeb9c4;
  --accent: #77b7df;
  --accent-2: #ff9f85;
  --button: #2c3541;
  --button-active: #3f5f52;
  --danger: #ff8f86;
  --topbar-bg: #1b2028;
  --mode-bg: #28313c;
  --mode-active-bg: #11161c;
  --rail-bg: #1c222a;
  --canvas-pane-bg: #222936;
  --canvas-bg: #2f3743;
  --canvas-border: #596678;
  --inspector-bg: #1b2028;
  --input-bg: #151a21;
  --kbd-bg: #151a21;
  --tile-panel-bg: #26313d;
  --status-bg: #0d1014;
  --status-ink: #d9e4ef;
  --validation-bg: #3a2225;
  --warning-bg: #383221;
  --warning-ink: #f0d47a;
  --active-border: #8ac99e;
  --stage-active-bg: #433255;
  --stage-active-border: #bd8cec;
}

:root[data-theme="sweet"] {
  color-scheme: light;
  --ui-bg: #fff3f8;
  --panel: #fff8fc;
  --line: #e7bfd2;
  --ink: #392936;
  --muted: #846579;
  --accent: #b45aa0;
  --accent-2: #e58b7c;
  --button: #f7dce9;
  --button-active: #d8efd7;
  --danger: #c94e68;
  --topbar-bg: #fff7fb;
  --mode-bg: #f3d7e6;
  --mode-active-bg: #ffffff;
  --rail-bg: #f8e8f0;
  --canvas-pane-bg: #e9dfe8;
  --canvas-bg: #faedf4;
  --canvas-border: #c99ab5;
  --inspector-bg: #f9eaf2;
  --input-bg: #fffafd;
  --kbd-bg: #fff3f8;
  --tile-panel-bg: #f7e4ef;
  --status-bg: #50384a;
  --status-ink: #fff0f7;
  --validation-bg: #ffe8ef;
  --warning-bg: #fff3cf;
  --warning-ink: #7f6240;
  --active-border: #73ad82;
  --stage-active-bg: #e5d8ff;
  --stage-active-border: #9d74cb;
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
}

body {
  overflow: hidden;
  background: var(--ui-bg);
  color: var(--ink);
  font: 13px/1.35 Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  min-width: 36px;
  height: 34px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--button);
  color: var(--ink);
  cursor: pointer;
}

button:hover,
button:focus-visible {
  border-color: var(--accent);
  outline: none;
}

.app-shell {
  display: grid;
  grid-template-columns: 140px minmax(320px, 1fr) 340px;
  grid-template-rows: 52px minmax(0, 1fr) 32px;
  width: 100vw;
  height: 100vh;
}

.topbar {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--line);
  background: var(--topbar-bg);
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 10px;
  min-width: 260px;
}

.brand strong {
  font-size: 17px;
}

.brand span {
  color: var(--muted);
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 6px;
}

.mode-switch {
  display: inline-flex;
  gap: 4px;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--mode-bg);
}

.mode-btn {
  min-width: 86px;
  height: 30px;
  border-color: transparent;
  background: transparent;
  font-weight: 800;
}

.mode-btn.active {
  background: var(--mode-active-bg);
  border-color: var(--accent);
  color: var(--accent);
}

.toolbar button {
  padding: 0 8px;
  font-weight: 700;
}

.toolrail {
  grid-row: 2;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 8px;
  padding: 10px 8px;
  border-right: 1px solid var(--line);
  background: var(--rail-bg);
}

.tool {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  align-items: center;
  gap: 4px;
  width: 124px;
  min-width: 124px;
  padding: 0 6px;
  font-weight: 800;
  text-align: left;
}

.tool kbd {
  display: grid;
  place-items: center;
  min-width: 22px;
  height: 22px;
  border: 1px solid rgba(54, 45, 35, 0.25);
  border-radius: 4px;
  background: var(--kbd-bg);
  color: var(--ink);
  font: 700 11px/1 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.tool span {
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  font-size: 12px;
}

.rail-layers {
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px solid var(--line);
}

.rail-layers h2 {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0;
}

.rail-view-controls {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 5px;
  margin-bottom: 7px;
}

.rail-view-controls button {
  width: 100%;
  min-width: 0;
  height: 28px;
  padding: 0;
  font-weight: 800;
}

.rail-theme-controls {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 5px;
  margin-bottom: 9px;
}

.rail-theme-controls button {
  display: grid;
  place-items: center;
  width: 100%;
  min-width: 0;
  height: 28px;
  padding: 0;
}

.theme-choice.active {
  border-color: var(--accent);
  background: var(--mode-active-bg);
}

.theme-dot {
  display: block;
  width: 16px;
  height: 16px;
  border: 1px solid var(--line);
  border-radius: 50%;
}

.theme-dot-classic {
  background: linear-gradient(135deg, #fffaf0 0 48%, #b9d39a 50% 100%);
}

.theme-dot-dark {
  background: linear-gradient(135deg, #11161c 0 48%, #77b7df 50% 100%);
}

.theme-dot-sweet {
  background: linear-gradient(135deg, #fff3f8 0 48%, #d8efd7 50% 100%);
}

.tool.active {
  background: var(--button-active);
  border-color: var(--active-border);
}

.tool[hidden],
[data-mode-action][hidden] {
  display: none;
}

.canvas-pane {
  grid-column: 2;
  grid-row: 2;
  min-width: 0;
  min-height: 0;
  background: var(--canvas-pane-bg);
}

.canvas-scroller {
  width: 100%;
  height: 100%;
  overflow: auto;
  padding: 24px;
}

#mapCanvas {
  display: block;
  width: 2304px;
  height: 2304px;
  image-rendering: crisp-edges;
  background: var(--canvas-bg);
  border: 1px solid var(--canvas-border);
  box-shadow: 0 12px 30px rgba(60, 48, 35, 0.2);
  transform-origin: top left;
}

.inspector {
  grid-column: 3;
  grid-row: 2;
  min-width: 0;
  min-height: 0;
  overflow: auto;
  padding: 12px;
  border-left: 1px solid var(--line);
  background: var(--inspector-bg);
}

.panel {
  margin: 0 0 10px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.panel[hidden],
.door-fields[hidden],
.selected-door-fields[hidden],
.object-size-fields[hidden],
.selected-object-size-fields[hidden] {
  display: none;
}

.panel h2 {
  margin: 0 0 9px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0;
}

label {
  display: grid;
  gap: 4px;
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

input,
select,
textarea {
  width: 100%;
  min-height: 32px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--input-bg);
  color: var(--ink);
  padding: 6px 8px;
}

input[type="color"] {
  padding: 2px;
}

textarea {
  min-height: 140px;
  resize: vertical;
  font: 12px/1.4 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.field-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.field-row label {
  margin-bottom: 0;
}

.paint-group {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px;
  margin-bottom: 10px;
}

.wall-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px;
  margin-bottom: 10px;
}

.wall-actions + .summary {
  margin-bottom: 8px;
}

.object-category-group {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.object-choice {
  min-height: 38px;
  height: auto;
  padding: 6px 7px;
  line-height: 1.15;
}

.paint-title {
  grid-column: 1 / -1;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.choice-btn {
  min-width: 0;
  width: 100%;
  height: 34px;
  padding: 0 8px;
  text-align: center;
  font-weight: 700;
}

.stage-list {
  display: grid;
  gap: 6px;
  margin-bottom: 8px;
}

.map-list-row {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  align-items: center;
  gap: 6px;
}

.stage-list-item {
  width: 100%;
  min-height: 36px;
  height: auto;
  padding: 7px 9px;
  text-align: left;
  font-weight: 800;
}

.stage-list-item.active {
  background: var(--stage-active-bg);
  border-color: var(--stage-active-border);
}

.choice-btn.active {
  background: var(--button-active);
  border-color: var(--active-border);
}

.checkline {
  display: flex;
  align-items: center;
  gap: 8px;
}

.checkline input {
  width: auto;
  min-height: 0;
}

.layer-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.rail-layers .layer-grid {
  grid-template-columns: 1fr;
  gap: 5px;
}

.layer-grid .checkline {
  min-height: 30px;
  margin: 0;
  padding: 5px 7px;
  border: 1px solid #ded2bf;
  border-radius: 6px;
  background: var(--input-bg);
  font-weight: 700;
}

.rail-layers .checkline {
  min-height: 28px;
  padding: 4px 6px;
  font-size: 11px;
}

.summary {
  min-height: 42px;
  padding: 8px;
  border: 1px solid #ded2bf;
  border-radius: 6px;
  background: var(--input-bg);
  color: var(--ink);
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px;
  margin-top: 8px;
}

.stat-grid div {
  min-width: 0;
  padding: 7px 8px;
  border: 1px solid #ded2bf;
  border-radius: 6px;
  background: var(--tile-panel-bg);
}

.stat-grid strong,
.stat-grid span {
  display: block;
}

.stat-grid strong {
  font-size: 15px;
}

.stat-grid span {
  color: var(--muted);
  font-size: 11px;
}

.export-actions {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 6px;
  margin-top: 8px;
}

.export-actions button {
  width: 100%;
  min-width: 0;
  height: auto;
  min-height: 36px;
}

.validation-list {
  display: grid;
  gap: 6px;
  max-height: 160px;
  overflow: auto;
  margin: 0;
  padding: 0;
  list-style: none;
}

.validation-list li {
  padding: 6px 8px;
  border-radius: 6px;
  background: var(--validation-bg);
  color: var(--danger);
}

.validation-list li.warning {
  background: var(--warning-bg);
  color: var(--warning-ink);
}

.statusbar {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 0 12px;
  border-top: 1px solid var(--line);
  background: var(--status-bg);
  color: var(--status-ink);
  font-size: 12px;
}

@media (max-width: 900px) {
  body {
    overflow: auto;
  }

  .app-shell {
    grid-template-columns: 132px minmax(260px, 1fr);
    grid-template-rows: auto 68vh minmax(360px, auto) 32px;
    height: auto;
    min-height: 100vh;
  }

  .topbar {
    grid-column: 1 / -1;
    align-items: flex-start;
    flex-direction: column;
  }

  .brand {
    min-width: 0;
  }

  .toolbar {
    justify-content: flex-start;
  }

  .toolrail {
    grid-column: 1;
    grid-row: 2;
  }

  .canvas-pane {
    grid-column: 2;
    grid-row: 2;
  }

  .canvas-scroller {
    padding: 12px;
  }

  .inspector {
    grid-column: 1 / -1;
    grid-row: 3;
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .statusbar {
    grid-row: 4;
    flex-wrap: wrap;
    height: auto;
    min-height: 32px;
  }
}