:root {
  color-scheme: light;
  --bg: #f3f5f1;
  --surface: #ffffff;
  --surface-soft: #f8faf6;
  --line: #d8ded4;
  --line-strong: #b9c4b1;
  --text: #1c2520;
  --muted: #607067;
  --accent: #256f68;
  --accent-strong: #164f4a;
  --accent-soft: #dcebe7;
  --gold: #b77823;
  --danger: #a73d32;
  --shadow: 0 14px 34px rgba(40, 54, 48, 0.11);
  --radius: 8px;
  --font: "Segoe UI", "Yu Gothic UI", Meiryo, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 1120px;
  min-height: 100vh;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(37, 111, 104, 0.04) 1px, transparent 1px),
    linear-gradient(0deg, rgba(37, 111, 104, 0.04) 1px, transparent 1px),
    var(--bg);
  background-size: 28px 28px;
  color: var(--text);
  font-family: var(--font);
  letter-spacing: 0;
}

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

.app {
  display: grid;
  grid-template-rows: 64px 1fr;
  height: 100vh;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 12px 18px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  z-index: 2;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 310px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border: 1px solid #a7b8ae;
  border-radius: 8px;
  background: #173c39;
  color: #eef8f2;
  font-weight: 800;
  font-size: 14px;
}

.brand h1,
.brand p,
.panel-title h2,
.canvas-head h2 {
  margin: 0;
}

.brand h1 {
  font-size: 16px;
  line-height: 1.1;
}

.brand p {
  margin-top: 3px;
  color: var(--muted);
  font-size: 12px;
}

.top-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.button,
.small-button,
.icon-button,
.segment,
.version-button {
  border: 1px solid var(--line-strong);
  border-radius: 7px;
  background: var(--surface);
  color: var(--text);
  transition: 120ms ease;
}

.version-switch {
  display: grid;
  grid-template-columns: 1fr 1fr;
  width: 138px;
  min-width: 138px;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: var(--surface);
}

.version-button {
  height: 34px;
  border: 0;
  border-radius: 0;
  font-size: 13px;
  font-weight: 800;
}

.version-button.active {
  background: var(--accent);
  color: #fff;
}

.button {
  min-height: 34px;
  padding: 7px 12px;
  font-size: 13px;
  font-weight: 650;
}

.button:hover,
.small-button:hover,
.icon-button:hover,
.segment:hover,
.version-button:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.version-button.active:hover {
  background: var(--accent-strong);
}

.button.primary {
  border-color: var(--accent-strong);
  background: var(--accent);
  color: white;
}

.button.primary:hover {
  background: var(--accent-strong);
}

.button.wide {
  width: 100%;
}

.small-button {
  min-height: 28px;
  padding: 5px 9px;
  font-size: 12px;
  font-weight: 650;
}

.small-button.danger {
  border-color: #d5aaa5;
  color: var(--danger);
}

.workspace {
  display: grid;
  grid-template-columns: 306px minmax(520px, 1fr) 360px;
  gap: 12px;
  min-height: 0;
  padding: 12px;
}

.left-panel,
.right-panel {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 0;
  overflow: auto;
}

.panel,
.plan-area {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.94);
  box-shadow: var(--shadow);
}

.panel {
  padding: 14px;
}

.panel-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.panel-title h2,
.canvas-head h2 {
  font-size: 14px;
  font-weight: 750;
}

.field-grid {
  display: grid;
  gap: 10px;
}

.field-grid.two {
  grid-template-columns: 1fr 1fr;
}

.field-grid label,
.stacked {
  display: grid;
  gap: 5px;
}

.field-grid span,
.stacked span,
.field label span {
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
}

input,
select {
  width: 100%;
  height: 34px;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  padding: 6px 8px;
  background: var(--surface-soft);
  color: var(--text);
  outline: none;
}

input:focus,
select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37, 111, 104, 0.12);
}

.segmented {
  display: grid;
  grid-template-columns: 1fr 1fr;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
}

.segment {
  min-width: 52px;
  height: 30px;
  border: 0;
  border-radius: 0;
  background: var(--surface);
  font-size: 12px;
  font-weight: 750;
}

.segment.active {
  background: var(--accent);
  color: white;
}

.tool-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  margin-bottom: 10px;
}

.toggle-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
  margin-top: 12px;
}

.toggle-row.two {
  grid-template-columns: 1fr 1fr;
}

.toggle-row label {
  display: flex;
  align-items: center;
  gap: 6px;
  min-height: 30px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.toggle-row input {
  width: 15px;
  height: 15px;
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 4px 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface-soft);
  color: var(--muted);
  font-size: 11px;
  font-weight: 750;
  white-space: nowrap;
}

.inspector-panel {
  min-height: 340px;
}

.inspector-empty {
  display: grid;
  place-items: center;
  min-height: 230px;
  border: 1px dashed var(--line-strong);
  border-radius: 8px;
  color: var(--muted);
  font-size: 13px;
  text-align: center;
  padding: 18px;
}

.inspector-form {
  display: grid;
  gap: 12px;
}

.field {
  display: grid;
  gap: 5px;
}

.field.inline {
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.inspector-actions {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
}

.color-field {
  display: grid;
  grid-template-columns: 1fr 44px;
  gap: 8px;
  align-items: end;
}

input[type="color"] {
  height: 34px;
  padding: 3px;
}

.plan-area {
  display: grid;
  grid-template-rows: 58px minmax(0, 1fr);
  min-height: 0;
  overflow: hidden;
}

.canvas-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.88);
}

.canvas-head p {
  margin: 3px 0 0;
  color: var(--muted);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
}

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

.icon-button {
  display: grid;
  place-items: center;
  min-width: 34px;
  height: 32px;
  padding: 0 8px;
  font-weight: 800;
}

.zoom-readout {
  min-width: 48px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-align: center;
  font-variant-numeric: tabular-nums;
}

#planCanvas,
#perspectiveCanvas {
  display: block;
  width: 100%;
  height: 100%;
}

#planCanvas {
  background: #fbfcf8;
}

.right-panel .panel {
  flex: 0 0 auto;
}

.metrics-panel {
  padding-bottom: 12px;
}

.lot-summary {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 10px;
}

.lot-summary div {
  min-height: 76px;
  padding: 12px;
  border: 1px solid #acc0b5;
  border-radius: 8px;
  background: linear-gradient(180deg, #f8fbf8, #e9f1ec);
}

.lot-summary span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.lot-summary strong {
  display: block;
  margin-top: 7px;
  color: #173c39;
  font-size: 25px;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.metric-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.metric-grid div {
  min-height: 74px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(180deg, #ffffff, #f6f8f2);
}

.metric-grid span,
.metric-grid small {
  display: block;
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
}

.metric-grid strong {
  display: inline-block;
  margin-top: 5px;
  font-size: 24px;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.recommendation-panel {
  display: grid;
  gap: 10px;
}

.recommendation-hero {
  padding: 12px;
  border: 1px solid #a9c2ba;
  border-radius: 8px;
  background: linear-gradient(180deg, #f8fcfb, #e3efec);
}

.recommendation-hero span,
.recommendation-hero small {
  display: block;
  color: var(--muted);
  font-size: 11px;
  font-weight: 800;
}

.recommendation-hero strong {
  display: block;
  margin: 6px 0 4px;
  color: #123c37;
  font-size: 28px;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.recommendation-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.recommendation-card {
  min-height: 62px;
  padding: 9px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-soft);
}

.recommendation-card span {
  display: block;
  color: var(--muted);
  font-size: 10px;
  font-weight: 800;
}

.recommendation-card strong {
  display: block;
  margin-top: 4px;
  font-size: 18px;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.factor-list {
  display: grid;
  gap: 6px;
}

.factor-item {
  display: grid;
  grid-template-columns: 8px 1fr;
  gap: 8px;
  align-items: start;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}

.factor-item::before {
  content: "";
  width: 8px;
  height: 8px;
  margin-top: 5px;
  border-radius: 50%;
  background: var(--accent);
}

.perspective-panel {
  display: grid;
  grid-template-rows: auto minmax(300px, 36vh);
  min-height: 380px;
}

#perspectiveCanvas {
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(180deg, #eff7f4 0%, #fbfbf2 48%, #e7eadf 100%);
}

.list-panel {
  display: flex;
  flex-direction: column;
  min-height: 230px;
  flex: 1 1 auto;
}

.room-list {
  display: grid;
  gap: 8px;
  min-height: 0;
  overflow: auto;
  padding-right: 2px;
}

.list-item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  align-items: center;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-soft);
}

.list-item.active {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37, 111, 104, 0.11);
}

.list-item button {
  appearance: none;
  border: 0;
  background: transparent;
  color: inherit;
  text-align: left;
  cursor: pointer;
}

.list-title {
  display: block;
  font-size: 13px;
  font-weight: 800;
}

.list-sub {
  display: block;
  margin-top: 3px;
  color: var(--muted);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
}

.swatch {
  width: 18px;
  height: 18px;
  border: 1px solid rgba(0, 0, 0, 0.15);
  border-radius: 5px;
}

.advanced-panel input[type="range"] {
  padding: 0;
}

.publish-panel textarea {
  width: 100%;
  min-height: 92px;
  resize: vertical;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  padding: 10px;
  background: #f8faf6;
  color: #26342f;
  font: 12px/1.45 Consolas, "SFMono-Regular", monospace;
}

body.embed-mode {
  min-width: 940px;
}

body.embed-mode .topbar {
  grid-row: auto;
}

body.embed-mode .brand p,
body.embed-mode .publish-panel,
body.embed-mode .list-panel,
body.embed-mode .advanced-panel {
  display: none;
}

body.embed-mode #saveBtn,
body.embed-mode #loadBtn,
body.embed-mode #exportJsonBtn,
body.embed-mode #importJsonBtn,
body.embed-mode #embedModeBtn,
body.embed-mode #copyEmbedBtn {
  display: none;
}

body.embed-mode .app {
  grid-template-rows: 56px 1fr;
}

body.embed-mode .topbar {
  padding: 8px 14px;
}

body.embed-mode .workspace {
  grid-template-columns: 270px minmax(500px, 1fr) 330px;
  padding: 10px;
}

body.embed-mode .inspector-panel {
  display: none;
}

body.embed-mode .perspective-panel {
  order: -3;
  grid-template-rows: auto minmax(420px, 52vh);
  min-height: 490px;
}

body.embed-mode .metrics-panel {
  order: -2;
}

body.embed-mode .recommendation-panel {
  order: -1;
}

body.simple-version .detail-only {
  display: none;
}

body.simple-version .inspector-panel {
  min-height: 250px;
}

body.simple-version .perspective-panel {
  grid-template-rows: auto minmax(340px, 46vh);
  min-height: 420px;
}

@media (max-width: 1280px) {
  body {
    min-width: 980px;
  }

  .workspace {
    grid-template-columns: 286px minmax(420px, 1fr) 330px;
  }

  .topbar {
    gap: 10px;
  }

  .top-actions {
    gap: 6px;
  }

  .button {
    padding: 7px 9px;
  }
}

@media (max-width: 760px) {
  body {
    min-width: 0;
    overflow: auto;
  }

  body.embed-mode {
    min-width: 0;
  }

  .app {
    height: auto;
    min-height: 100vh;
    grid-template-rows: auto 1fr;
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
    padding: 10px;
  }

  .brand {
    min-width: 0;
  }

  .top-actions {
    width: 100%;
    justify-content: flex-start;
  }

  .version-switch {
    width: 116px;
    min-width: 116px;
  }

  .button {
    padding: 7px 8px;
  }

  .workspace,
  body.embed-mode .workspace {
    grid-template-columns: minmax(0, 1fr);
    padding: 10px;
  }

  .left-panel,
  .right-panel {
    overflow: visible;
  }

  .fields.two,
  .summary-grid,
  .metric-grid,
  .quality-grid,
  .export-grid {
    grid-template-columns: 1fr;
  }

  .plan-area {
    min-width: 0;
  }

  .canvas-wrap {
    min-width: 0;
  }

  .perspective-panel,
  body.embed-mode .perspective-panel,
  body.simple-version .perspective-panel {
    min-height: 360px;
    grid-template-rows: auto minmax(300px, 58vh);
  }
}