:root {
  color-scheme: light;
  font-family: Inter, "Noto Sans JP", "Hiragino Sans", sans-serif;
  color: #17211f;
  background: #e6ebe8;
  font-synthesis: none;
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  overflow: hidden;
  background: #e6ebe8;
}

button, input { font: inherit; }

button {
  border: 1px solid #c5cfcb;
  border-radius: 6px;
  padding: 6px 10px;
  color: #34413e;
  background: #fff;
  cursor: pointer;
}

button:hover { border-color: #0f766e; }
button:disabled { cursor: wait; opacity: 0.65; }

.app-bar {
  display: flex;
  align-items: center;
  gap: 16px;
  min-height: 48px;
  padding: 6px 10px 6px 14px;
  border-bottom: 1px solid #cbd5d1;
  background: #f9fbfa;
}

.brand {
  display: flex;
  align-items: center;
  flex: 0 0 auto;
  gap: 7px;
  font-size: 0.9rem;
}

.help {
  display: inline-grid;
  width: 19px;
  height: 19px;
  place-items: center;
  border: 1px solid #b9c6c1;
  border-radius: 50%;
  color: #60706c;
  font-size: 0.72rem;
  cursor: help;
}

.mode-label {
  flex: 0 1 auto;
  min-width: 0;
  color: #465550;
  font-size: 0.82rem;
  font-weight: 700;
  white-space: nowrap;
}

.mode-label strong, .step strong {
  display: inline-grid;
  width: 21px;
  height: 21px;
  margin-right: 5px;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  background: #0f766e;
  font-size: 0.72rem;
}

.app-bar-actions, .zoom-controls {
  display: flex;
  align-items: center;
  gap: 5px;
}

.grid-toggle-controls { display: flex; align-items: center; gap: 5px; }
.grid-toggle-controls button { padding: 5px 8px; color: #52605d; font-size: 0.7rem; }
.grid-toggle-controls button.is-hidden { color: #8a9692; background: #eef2f0; }

.app-bar-actions { margin-left: auto; }

.app-bar button { padding: 5px 9px; font-size: 0.76rem; }

.zoom-controls {
  padding: 2px;
  border: 1px solid #d2dad7;
  border-radius: 7px;
  background: #eef2f0;
}

.zoom-controls button { padding: 3px 8px; }
.zoom-controls output {
  min-width: 45px;
  color: #34413e;
  font-size: 0.75rem;
  font-weight: 700;
  text-align: center;
}

.auto-detect {
  border-color: #2563eb;
  color: #1d4ed8;
  background: #eff6ff;
  font-weight: 700;
}
.auto-detect:hover { border-color: #1d4ed8; background: #dbeafe; }
.auto-detect.loading { color: #735b0e; border-color: #d6b84d; background: #fff9dc; }

.drawing-selector { display: flex; align-items: center; gap: 5px; color: #52605d; font-size: 0.7rem; font-weight: 700; white-space: nowrap; }
.drawing-selector select { max-width: 132px; padding: 5px 22px 5px 7px; border: 1px solid #b9c8c2; border-radius: 6px; color: #34413e; background: #fff; font: inherit; }

.side-panel-toggle {
  border-color: #9fb0aa;
  font-weight: 700;
}

.app-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 370px;
  height: calc(100dvh - 48px);
  min-height: 0;
}

.workspace {
  display: flex;
  min-width: 0;
  min-height: 0;
  flex-direction: column;
  padding: 8px;
  background: #dfe5e2;
}

.canvas-shell {
  position: relative;
  flex: 1 1 auto;
  min-width: 0;
  min-height: 0;
  overflow: auto;
  border: 1px solid #bcc8c3;
  background-color: #d9dfdc;
  background-image: linear-gradient(45deg, #cdd4d1 25%, transparent 25%), linear-gradient(-45deg, #cdd4d1 25%, transparent 25%), linear-gradient(45deg, transparent 75%, #cdd4d1 75%), linear-gradient(-45deg, transparent 75%, #cdd4d1 75%);
  background-position: 0 0, 0 8px, 8px -8px, -8px 0;
  background-size: 16px 16px;
}

.canvas-loading {
  position: absolute;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  max-width: min(320px, calc(100% - 24px));
  padding: 9px 12px;
  border-radius: 8px;
  color: #52605d;
  background: #fff;
  box-shadow: 0 4px 14px rgba(16, 43, 39, 0.2);
  font-size: 0.76rem;
  line-height: 1.45;
  pointer-events: none;
  transform: translate(-50%, -50%);
}

.canvas-loading::before {
  content: "";
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  box-sizing: border-box;
  border: 2px solid #0f766e;
  border-right-color: transparent;
  border-radius: 50%;
  animation: status-loading-spin 0.8s linear infinite;
}

.canvas-stage {
  position: relative;
  margin: 0 auto;
}

canvas {
  display: block;
  height: auto;
  max-width: none;
  background: #fff;
  cursor: crosshair;
  touch-action: none;
}

canvas.polygon-mode { cursor: cell; }
canvas.pan-ready { cursor: grab; }
canvas.panning { cursor: grabbing; }

.calibration-overlay {
  position: absolute;
  z-index: 3;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.canvas-calibration-field,
.canvas-calibration-confirm,
.canvas-calibration-line-hitarea {
  position: absolute;
  pointer-events: auto;
}

.canvas-calibration-line-hitarea {
  z-index: 2;
}

.canvas-calibration-delete {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 22px;
  height: 22px;
  padding: 0;
  border: 1px solid #b91c1c;
  border-radius: 50%;
  color: #fff;
  background: #dc2626;
  box-shadow: 0 1px 5px rgba(127, 29, 29, 0.35);
  font-size: 0.9rem;
  line-height: 20px;
  opacity: 0;
  transform: translate(-50%, -50%);
  transition: opacity 120ms ease;
}

.canvas-calibration-line-hitarea.is-horizontal .canvas-calibration-delete {
  left: calc(100% - 11px);
  top: -2px;
  transform: translate(-50%, -100%);
}

.canvas-calibration-line-hitarea.is-vertical {
  width: 50px !important;
  margin-left: -14px;
}

.canvas-calibration-line-hitarea.is-vertical .canvas-calibration-delete {
  left: 28px;
  top: 50%;
  transform: translate(0, -50%);
}

.canvas-calibration-delete:hover,
.canvas-calibration-delete:focus-visible,
.canvas-calibration-line-hitarea:hover .canvas-calibration-delete {
  opacity: 1;
}

.canvas-calibration-leader {
  position: absolute;
  z-index: 0;
  height: 1px;
  background: rgba(15, 118, 110, 0.72);
  transform-origin: left center;
}

.canvas-calibration-field {
  z-index: 1;
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 3px 5px;
  border: 1px solid #0f766e;
  border-radius: 6px;
  color: #115e59;
  background: rgba(240, 253, 250, 0.96);
  box-shadow: 0 2px 7px rgba(15, 118, 110, 0.24);
  font-size: 0.66rem;
  font-weight: 700;
  transform: translate(-50%, -50%);
}

.canvas-calibration-field input {
  width: 58px;
  padding: 3px 4px;
  border: 1px solid #86c9b5;
  border-radius: 4px;
  color: #102b27;
  background: #fff;
  font: inherit;
  text-align: right;
}

.canvas-calibration-field input:focus {
  border-color: #0f766e;
  outline: 3px solid rgba(20, 184, 166, 0.24);
}

.canvas-calibration-confirm {
  z-index: 1;
  min-width: 42px;
  padding: 5px 9px;
  border-color: #0f766e;
  color: #fff;
  background: #0f766e;
  box-shadow: 0 2px 7px rgba(15, 118, 110, 0.28);
  font-size: 0.7rem;
  font-weight: 750;
  transform: translate(-50%, -50%);
}

.canvas-calibration-confirm:hover { border-color: #115e59; background: #115e59; }
.canvas-calibration-field input:disabled,
.canvas-calibration-confirm:disabled {
  border-color: #aeb8b4;
  color: #687571;
  background: #dce3df;
  box-shadow: none;
  cursor: not-allowed;
}

.hint {
  flex: 0 0 auto;
  margin: 5px 3px 0;
  overflow: hidden;
  color: #65736f;
  font-size: 0.7rem;
  line-height: 1.35;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.side-panel {
  min-width: 0;
  overflow-y: auto;
  border-left: 1px solid #cbd5d1;
  background: #f3f6f4;
  transition: opacity 140ms ease;
}

.side-panel-heading {
  position: sticky;
  z-index: 2;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 39px;
  padding: 5px 10px 5px 12px;
  border-bottom: 1px solid #d5ddd9;
  background: rgba(249, 251, 250, 0.96);
  font-size: 0.82rem;
}

.side-panel-heading button {
  padding: 2px 8px;
  border: 0;
  background: transparent;
  font-size: 1.2rem;
}

.app-layout.side-panel-closed { grid-template-columns: minmax(0, 1fr) 0; }
.app-layout.side-panel-closed .side-panel {
  visibility: hidden;
  overflow: hidden;
  border-left: 0;
  opacity: 0;
}
.app-layout.side-panel-closed .side-panel-toggle span { transform: rotate(180deg); }

.results {
  display: grid;
  gap: 8px;
  padding: 8px;
}

.side-panel-tabs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-bottom: 1px solid #cbd5d1;
}

.side-panel-tab {
  border: 0;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  padding: 8px 10px;
  color: #687571;
  background: transparent;
  font-size: 0.78rem;
  font-weight: 700;
}

.side-panel-tab:hover { border-color: #86c9b5; color: #0f766e; }
.side-panel-tab.is-active { border-bottom-color: #0f766e; color: #0f766e; }
.side-panel-tab:disabled {
  border-bottom-color: transparent;
  color: #a3adaa;
  background: #edf1ef;
  cursor: not-allowed;
  opacity: 1;
}

.side-panel-tab-content {
  display: grid;
  gap: 8px;
}

.panel, .status {
  border: 1px solid #d3dcd8;
  border-radius: 8px;
  background: #fff;
}

.status {
  padding: 9px 10px;
  color: #52605d;
  font-size: 0.76rem;
  line-height: 1.45;
}

.status.success { border-color: #86c9b5; color: #09634f; background: #edfdf7; }
.status.error { border-color: #f4aaa5; color: #a02620; background: #fff2f1; }
.status.loading {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: #735b0e;
  background: #fff9dc;
}
.status.loading::before {
  content: "";
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  box-sizing: border-box;
  border: 2px solid #0f766e;
  border-right-color: transparent;
  border-radius: 50%;
  animation: status-loading-spin 0.8s linear infinite;
}

@keyframes status-loading-spin {
  to { transform: rotate(360deg); }
}

.panel { padding: 12px; }
.panel-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 9px;
}
.panel h2 { margin: 5px 0 0; font-size: 0.98rem; }
.panel h3 { margin: 0 0 7px; font-size: 0.82rem; }
.step { color: #52605d; font-size: 0.72rem; font-weight: 700; }

.calibration-items { display: grid; gap: 6px; }
.calibration-items div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 8px;
  border-radius: 6px;
  background: #f3f6f4;
}
.calibration-items strong { font-size: 0.74rem; }
.calibration-items button { padding: 5px 8px; font-size: 0.7rem; }
.calibration-items .pending { color: #8a6511; }
.calibration-items .done { color: #08755b; }
#calibration-guidance { margin: 8px 0 0; color: #52605d; font-size: 0.74rem; line-height: 1.45; }

.segment-inputs { display: grid; gap: 6px; margin-bottom: 9px; }
.segment-field {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 8px;
  border: 1px solid #dce3df;
  border-radius: 6px;
  background: #f7f9f8;
  font-size: 0.78rem;
}
.segment-field small { display: block; margin-top: 2px; color: #7a8683; }
.input-wrap { display: flex; align-items: center; gap: 5px; }
.input-wrap input { width: 88px; padding: 6px; border: 1px solid #bdcac5; border-radius: 5px; }
.input-wrap input:focus { outline: 3px solid rgba(20, 184, 166, 0.17); border-color: #0f766e; }
.input-wrap b { color: #687571; font-size: 0.72rem; }

.primary { border-color: #0f766e; color: #fff; background: #0f766e; font-weight: 700; }
.primary:hover { border-color: #115e59; background: #115e59; }
.primary:disabled { border-color: #aeb8b4; background: #aeb8b4; cursor: not-allowed; }

.scale-result { color: #fff; background: #102b27; }
.scale-result .step { color: #b8d8d1; }
.scale-result .step strong { color: #102b27; background: #7ad7c2; }
.metric-main { display: flex; align-items: baseline; gap: 6px; margin: 12px 0; }
.metric-main span { font-size: 2.2rem; font-weight: 750; letter-spacing: -0.05em; }
.metric-main small { color: #b8d8d1; }
.scale-result dl { display: grid; grid-template-columns: repeat(3, 1fr); gap: 5px; margin: 0; }
.scale-result dl div { padding: 7px; border-radius: 5px; background: rgba(255, 255, 255, 0.07); }
.scale-result dt { color: #a8c5bf; font-size: 0.66rem; }
.scale-result dd { margin: 3px 0 0; font-size: 0.75rem; }

.polygon-heading { align-items: flex-end; }
.grid-spacing { display: flex; align-items: center; gap: 7px; color: #52605d; font-size: 0.72rem; }
.area-summary { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px; margin: 9px 0; }
.area-summary > div { padding: 8px; border: 1px solid #dce3df; border-radius: 6px; background: #f7f9f8; }
.area-summary span { display: block; color: #687571; font-size: 0.68rem; }
.area-summary strong { display: block; margin-top: 3px; color: #0f766e; font-size: 0.82rem; }
.area-summary b { font-size: 1.2rem; }

.tile-measurement-options {
  display: grid;
  gap: 10px;
  margin: 14px 0;
  padding: 12px;
  border: 1px solid #dbe4e8;
  border-radius: 12px;
  background: #f8fafb;
}

.tile-measurement-options label { display: grid; gap: 5px; color: #52616b; font-size: 0.72rem; }
.tile-measurement-options select {
  min-height: 34px;
  padding: 5px 8px;
  border: 1px solid #cbd5da;
  border-radius: 7px;
  background: white;
  color: #26343b;
}

.snap-mode-buttons { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.snap-mode-button {
  min-height: 34px;
  padding: 6px 8px;
  border: 1px solid #cbd5da;
  border-radius: 7px;
  background: white;
  color: #52616b;
  font-size: 0.68rem;
}
.snap-mode-button.is-active { border-color: #0f766e; background: #e6fffb; color: #0f766e; font-weight: 700; }
#snap-guidance { margin: 0; color: #52616b; font-size: 0.72rem; line-height: 1.5; }

.tile-area-summary { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; margin: 10px 0; }
.tile-area-summary > div { padding: 8px 6px; border-radius: 8px; background: #f1f5f6; text-align: center; }
.tile-area-summary span, .tile-area-summary strong { display: block; }
.tile-area-summary span { color: #52616b; font-size: 0.62rem; }
.tile-area-summary strong { margin-top: 3px; color: #26343b; font-size: 0.78rem; }
.polygon-list-wrap { margin-top: 12px; }
.polygon-list { display: grid; gap: 5px; margin: 0; padding: 0; list-style: none; }
.polygon-list li {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto auto;
  align-items: center;
  gap: 8px;
  padding: 7px 8px;
  border-radius: 5px;
  color: #5b21b6;
  background: #f1edff;
  font-size: 0.74rem;
}
.polygon-list li.empty { color: #7a8683; background: #f7f9f8; }
.polygon-list li.is-selected { outline: 3px solid #f59e0b; outline-offset: 1px; }
.polygon-list li.is-hidden-polygon { opacity: 0.55; }
.polygon-list li.is-editing { background: #fff7df; }
.polygon-kind-select {
  min-width: 82px;
  padding: 3px 4px;
  border: 1px solid #d8cef6;
  border-radius: 4px;
  color: #5b21b6;
  background: #fff;
  font-size: 0.68rem;
}
.polygon-actions { display: flex; gap: 4px; }
.polygon-action-button { padding: 3px 5px; border-color: #d8cef6; color: #5b21b6; font-size: 0.64rem; }
.polygon-action-button.edit { border-color: #b7d8f5; color: #1d4ed8; }
.polygon-action-button.delete { border-color: #f0b9b9; color: #b42318; }

.tab-shortcut {
  margin-top: 10px;
  padding: 4px 0;
  border: 0;
  color: #52605d;
  background: transparent;
  font-size: 0.72rem;
  text-decoration: underline;
  text-underline-offset: 2px;
}
.tab-shortcut:hover { color: #0f766e; }

[hidden] { display: none !important; }

@media (max-width: 1040px) {
  .brand strong { display: none; }
  .app-bar { gap: 8px; }
}

@media (max-width: 760px) {
  body { overflow: auto; }
  .app-bar {
    position: sticky;
    z-index: 5;
    top: 0;
    flex-wrap: wrap;
    gap: 5px 8px;
    min-height: 0;
    padding: 6px 8px;
  }
  .brand strong { display: inline; }
  .help { display: none; }
  .mode-label { order: 2; width: 100%; font-size: 0.74rem; }
  .app-bar-actions { gap: 4px; }
  .app-bar button { padding: 4px 7px; }
  .zoom-controls output { min-width: 40px; }
  #reset-button { display: none; }
  .app-layout {
    grid-template-columns: 1fr;
    grid-template-rows: minmax(58dvh, 1fr) auto;
    height: auto;
    min-height: calc(100dvh - 78px);
  }
  .workspace { min-height: 58dvh; padding: 5px; }
  .hint { white-space: normal; }
  .side-panel { width: 100%; max-height: none; border-top: 1px solid #cbd5d1; border-left: 0; }
  .app-layout.side-panel-closed { grid-template-columns: 1fr; grid-template-rows: minmax(calc(100dvh - 78px), 1fr) 0; }
  .app-layout.side-panel-closed .workspace { min-height: calc(100dvh - 78px); }
  .polygon-heading, .grid-spacing { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 520px) {
  .auto-detect { max-width: 88px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  #zoom-fit-button { display: none; }
  .side-panel-toggle { font-size: 0; }
  .side-panel-toggle span { font-size: 0.8rem; }
  .area-summary, .scale-result dl { grid-template-columns: 1fr; }
}