/* ── Grayscale design tokens ── */
:root {
  --bg-app: #0c0c0c;
  --bg-toolbar: #141414;
  --bg-panel: #121212;
  --bg-canvas: #0f0f0f;
  --bg-control: #1e1e1e;
  --bg-control-hover: #2a2a2a;
  --bg-overlay: rgba(16, 16, 16, 0.94);

  --text-primary: #ebebeb;
  --text-secondary: #b3b3b3;
  --text-muted: #737373;
  --text-inverse: #141414;

  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-default: #323232;
  --border-strong: #4a4a4a;

  --accent: #e8e8e8;
  --accent-soft: rgba(255, 255, 255, 0.1);
  --accent-ring: rgba(255, 255, 255, 0.26);
  --accent-hover: #ffffff;

  --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.38);
  --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.44);

  --grid-fine: rgba(255, 255, 255, 0.1);
  --grid-major: rgba(255, 255, 255, 0.2);
  --grid-zero: rgba(255, 255, 255, 0.32);
  --grid-dot: rgba(255, 255, 255, 0.2);
  --axis-label: #6e6e6e;
  --axis-handle-bg: rgba(255, 255, 255, 0.06);
  --axis-handle-border: rgba(255, 255, 255, 0.22);

  --link-stroke: rgba(190, 190, 190, 0.42);
  --link-selected: rgba(220, 220, 220, 0.72);
  --link-preview: rgba(220, 220, 220, 0.78);
  --link-endpoint: rgba(210, 210, 210, 0.94);
  --link-endpoint-from: var(--link-endpoint);
  --link-marker: rgba(190, 190, 190, 0.76);

  --snap-guide: rgba(255, 255, 255, 0.72);
  --snap-guide-size: rgba(255, 255, 255, 0.58);
  --snap-guide-axis: rgba(255, 255, 255, 0.46);

  --card-bg: #1c1c1c;
  --card-border: #525252;
  --card-text: #ededed;

  --card-polity-bg: rgba(34, 34, 34, 0.92);
  --card-polity-border: #787878;

  --card-place-bg: #202020;
  --card-place-border: #626262;
  --card-place-text: #f0f0f0;

  --card-person-bg: #18181a;
  --card-person-border: #58585e;

  --card-event-bg: #232323;
  --card-event-border: #6a6a6a;

  --card-note-bg: #262628;
  --card-note-border: #5e5e62;

  --card-free-bg: rgba(110, 110, 110, 0.34);
  --card-free-border: rgba(175, 175, 175, 0.72);
  --card-free-text: #f2f2f2;

  --card-work-bg: rgba(68, 68, 68, 0.9);
  --card-work-border: rgba(155, 155, 155, 0.88);
  --card-work-text: #fafafa;

  --card-relation-bg: var(--card-free-bg);
  --card-relation-border: var(--card-free-border);
  --card-relation-text: var(--card-free-text);

  --resize-hover: rgba(255, 255, 255, 0.18);
  --handle-bg: rgba(200, 200, 200, 0.82);
  --handle-border: rgba(255, 255, 255, 0.72);
  --handle-glow: rgba(255, 255, 255, 0.22);
  --handle-hover: rgba(240, 240, 240, 1);

  --pick-banner-bg: rgba(255, 255, 255, 0.06);
  --pick-banner-border: rgba(255, 255, 255, 0.22);
  --pick-child-outline: rgba(220, 220, 220, 0.78);
  --pick-target-border: #a8a8a8;
  --pick-target-ring: rgba(200, 200, 200, 0.38);
  --pick-confirm-bg: rgba(255, 255, 255, 0.1);
  --pick-confirm-border: #8a8a8a;

  --progress-text: #d8d8d8;
  --progress-track: rgba(255, 255, 255, 0.1);
  --progress-fill: rgba(220, 220, 220, 0.92);

  --link-color: #a8a8a8;

  /* ── Proportional design system (8px unit × φ^n) ── */
  --phi: 1.6180339887;
  --unit: 8px;
  --scale-0: 8px;
  --scale-1: 13px;
  --scale-2: 21px;
  --scale-3: 34px;
  --scale-4: 55px;
  --space-xs: calc(var(--unit) / var(--phi));
  --space-sm: var(--scale-0);
  --space-md: var(--scale-1);
  --space-lg: var(--scale-2);
  --space-xl: var(--scale-3);
  --space-2xl: var(--scale-4);
  --font-xs: calc(var(--scale-0) * 1.25);
  --font-sm: calc(var(--scale-1) / var(--phi) * 1.382);
  --font-base: var(--scale-1);
  --font-md: calc(var(--scale-1) * var(--phi) / 1.382);
  --font-lg: var(--scale-2);
  --line-height: var(--phi);
  --card-text-line-height: 1.2;
  --radius-sm: var(--space-xs);
  --radius-md: var(--scale-0);
  --radius-lg: calc(var(--scale-0) * var(--phi));
  --radius-xl: var(--scale-1);
  --control: var(--scale-3);
  --icon: var(--scale-1);
  --icon-lg: var(--scale-2);
  --side-file-toolbar-icon-size: calc(var(--scale-1) * 2 * 0.85);
  --side-file-toolbar-control: var(--control);
  --side-file-toolbar-pad: var(--space-xs);
  --side-file-toolbar-gap: var(--space-xs);
  --float-control: var(--scale-2);
  --float-icon: calc(var(--scale-1) / var(--phi));
  --float-icon-lg: calc(var(--scale-1) + 1px);
  --float-toolbar-pad-y: calc(var(--space-xs) * 0.85);
  --float-toolbar-pad-x: var(--space-sm);
  --float-toolbar-gap: calc(var(--space-xs) * 0.85);
  --float-toolbar-offset: 20px; /* gap between toolbar bottom and card/title top */
  --float-toolbar-height: calc(var(--float-control) + var(--float-toolbar-pad-y) * 2);
  --float-toolbar-divider: calc(var(--float-control) / var(--phi));
  --link-handle-size: calc(var(--float-icon) + 2px);
  --link-handle-offset: calc(var(--link-handle-size) / -2);
  --toolbar-pad-y: var(--space-xs);
  --toolbar-pad-x: var(--space-md);
  --toolbar-gap: var(--space-xs);
  --toolbar-height: calc(var(--control) + var(--toolbar-pad-y) * 2);
  --toolbar-divider: calc(var(--control) / var(--phi));
  --panel-width: calc(var(--scale-3) * 10 + var(--scale-2));
  --card-min-width: calc(var(--scale-0) * 6);
  --card-pad-y: calc(1em / (var(--phi) * var(--phi)));
  --card-pad-x: calc(1em / var(--phi));
  --card-ref-height: 40px;
  --card-font-scale: 1.21;
  --card-font-base: calc(var(--card-ref-height) / (var(--phi) * var(--phi)) * var(--card-font-scale));
  --card-font-note: calc(var(--card-font-base) / var(--phi));
  --popup-ui-scale: 0.935;
  --popup-font-base: calc(var(--card-font-base) * var(--popup-ui-scale));
  --popup-font-sm: calc(var(--popup-font-base) / var(--phi));
  --popup-pad-y: calc(var(--popup-font-base) / (var(--phi) * var(--phi)));
  --popup-pad-x: calc(var(--popup-font-base) / var(--phi));
  --popup-radius: var(--radius-lg);
  --popup-window-width: calc(var(--popup-font-base) * 14.6);
  --popup-wheel-size: calc(var(--popup-font-base) * 11.5);
  --popup-control: calc(var(--popup-font-base) * var(--phi));
  --side-panel-inset: 0px;
  --handle-size: calc(var(--icon) + 1px);
  --handle-offset: calc(var(--handle-size) / -2);
  --resize-hit: var(--scale-0);
  --stroke-base: calc(var(--unit) / 5);
  --stroke-active: calc(var(--stroke-base) * var(--phi));
}

body.light-theme {
  --white: #ffffff;
  --white-hover: #f5f5f5;
  --white-raised: #f7f7f7;

  --bg-app: var(--white);
  --bg-toolbar: var(--white);
  --bg-panel: var(--white);
  --bg-canvas: var(--white);
  --bg-control: var(--white);
  --bg-control-hover: var(--white-hover);
  --bg-overlay: rgba(255, 255, 255, 0.96);

  --text-primary: #1a1a1a;
  --text-secondary: #4a4a4a;
  --text-muted: #6e6e6a;
  --text-inverse: var(--white);

  --border-subtle: rgba(0, 0, 0, 0.06);
  --border-default: #d0d0ca;
  --border-strong: #a8a8a2;

  --accent: #2a2a2a;
  --accent-soft: rgba(0, 0, 0, 0.06);
  --accent-ring: rgba(0, 0, 0, 0.18);
  --accent-hover: #000000;

  --shadow-sm: 0 4px 14px rgba(30, 30, 30, 0.12);
  --shadow-md: 0 8px 28px rgba(30, 30, 30, 0.14);

  --grid-fine: rgba(0, 0, 0, 0.1);
  --grid-major: rgba(0, 0, 0, 0.2);
  --grid-zero: rgba(0, 0, 0, 0.28);
  --grid-dot: rgba(0, 0, 0, 0.16);
  --axis-label: #7a7a74;
  --axis-handle-bg: rgba(0, 0, 0, 0.05);
  --axis-handle-border: rgba(0, 0, 0, 0.18);

  --link-stroke: rgba(120, 120, 120, 0.38);
  --link-selected: rgba(60, 60, 60, 0.52);
  --link-preview: rgba(60, 60, 60, 0.72);
  --link-endpoint: rgba(70, 70, 70, 0.9);
  --link-endpoint-from: var(--link-endpoint);
  --link-marker: rgba(55, 55, 55, 0.68);

  --snap-guide: rgba(20, 20, 20, 0.62);
  --snap-guide-size: rgba(20, 20, 20, 0.48);
  --snap-guide-axis: rgba(20, 20, 20, 0.38);

  --card-bg: var(--white);
  --card-border: #b0b0aa;
  --card-text: #1e1e1e;

  --card-polity-bg: var(--white-raised);
  --card-polity-border: #8a8a84;

  --card-place-bg: var(--white-raised);
  --card-place-border: #9a9a94;
  --card-place-text: #222222;

  --card-person-bg: var(--white-raised);
  --card-person-border: #888890;

  --card-event-bg: var(--white-raised);
  --card-event-border: #949494;

  --card-note-bg: var(--white);
  --card-note-border: #a0a0a0;

  --card-free-bg: rgba(255, 255, 255, 0.72);
  --card-free-border: rgba(150, 150, 146, 0.82);
  --card-free-text: #2a2a2a;

  --card-work-bg: var(--white-raised);
  --card-work-border: rgba(120, 120, 116, 0.78);
  --card-work-text: #1a1a1a;

  --card-relation-bg: var(--card-free-bg);
  --card-relation-border: var(--card-free-border);
  --card-relation-text: var(--card-free-text);

  --resize-hover: rgba(0, 0, 0, 0.1);
  --handle-bg: rgba(80, 80, 80, 0.78);
  --handle-border: rgba(255, 255, 255, 0.85);
  --handle-glow: rgba(0, 0, 0, 0.12);
  --handle-hover: rgba(40, 40, 40, 0.95);

  --pick-banner-bg: rgba(0, 0, 0, 0.04);
  --pick-banner-border: rgba(0, 0, 0, 0.16);
  --pick-child-outline: rgba(60, 60, 60, 0.65);
  --pick-target-border: #5a5a5a;
  --pick-target-ring: rgba(0, 0, 0, 0.16);
  --pick-confirm-bg: rgba(0, 0, 0, 0.05);
  --pick-confirm-border: #7a7a7a;

  --progress-text: #3a3a3a;
  --progress-track: rgba(0, 0, 0, 0.1);
  --progress-fill: rgba(50, 50, 50, 0.82);

  --link-color: #4a4a4a;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg-app);
  color: var(--text-primary);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: var(--font-base);
  line-height: var(--line-height);
}

#app {
  height: 100vh;
  height: 100dvh;
  display: flex;
  flex-direction: column;
}

#toolbar {
  position: relative;
  z-index: 10;
  min-height: var(--toolbar-height);
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-toolbar);
  border-bottom: 1px solid var(--border-default);
  display: flex;
  align-items: center;
}

.toolbar-brand {
  position: relative;
  z-index: 1;
  flex: 0 0 auto;
  font-size: var(--font-md);
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text-primary);
  user-select: none;
  cursor: pointer;
}

.toolbar-right {
  display: flex;
  align-items: center;
  gap: calc(var(--space-xs) * 0.5);
  flex: 0 0 auto;
  margin-left: auto;
  z-index: 1;
}

.toolbar-menu-anchor {
  position: relative;
  z-index: 6;
}

.toolbar-menu-panel {
  position: absolute;
  right: 0;
  top: calc(100% + var(--scale-2));
  z-index: 7;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--side-file-toolbar-gap);
  padding: var(--side-file-toolbar-pad);
  background: var(--bg-control);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  opacity: 0;
  pointer-events: none;
  transform: translateY(-8px);
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.toolbar-menu-anchor.is-open .toolbar-menu-panel {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.toolbar-menu-divider {
  width: calc(100% - var(--space-xs));
  height: 1px;
  margin: calc(var(--space-xs) * 0.25) 0;
  background: var(--border-default);
}

.toolbar-menu-panel .toolbar-header-button,
.toolbar-menu-panel .side-file-toolbar-button {
  flex-shrink: 0;
}

.toolbar-header-button {
  width: var(--control);
  height: var(--control);
  min-width: var(--control);
  padding: 0;
  margin: 0;
  border: none;
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--text-primary);
  font-size: var(--icon);
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
  box-shadow: none;
}

.toolbar-header-button:hover {
  background: color-mix(in srgb, var(--bg-control-hover) 72%, transparent);
}

.toolbar-header-button:focus {
  outline: none;
}

.toolbar-header-button:active {
  transform: none;
  background: color-mix(in srgb, var(--bg-control-hover) 88%, transparent);
}

.toolbar-header-button .canvas-toolbar-icon {
  width: var(--icon-lg);
  height: var(--icon-lg);
  display: block;
  flex-shrink: 0;
}

#languageToggleBtn .canvas-toolbar-icon {
  width: calc(var(--icon-lg) * 1.5);
  height: calc(var(--icon-lg) * 1.5);
}

.toolbar-group {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

button,
select {
  background: var(--bg-control);
  color: var(--text-primary);
  border: 1px solid var(--border-strong);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  cursor: pointer;
  white-space: nowrap;
  font-size: var(--font-base);
}

button:hover,
select:hover {
  background: var(--bg-control-hover);
}

button:active:not(.side-panel-toggle):not(.side-file-toolbar-button):not(.canvas-toolbar-button):not(.toolbar-header-button):not(.link-toolbar-button):not(.app-dialog-button):not(.map-tree-toggle) {
  transform: translateY(1px);
}

.icon-button {
  min-width: var(--control);
  font-size: var(--icon-lg);
  line-height: 1;
  padding: var(--space-xs) var(--space-md);
}

.toolbar-file-name {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: min(42vw, calc(var(--panel-width) + var(--scale-2)));
  min-width: 0;
  font-size: var(--font-md);
  font-weight: 500;
  font-family: inherit;
  color: var(--text-primary);
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  padding: var(--space-xs) var(--space-sm);
  line-height: var(--line-height);
  text-align: center;
  cursor: text;
}

.toolbar-file-name:hover {
  border-color: transparent;
  background: transparent;
}

.toolbar-file-name:focus {
  outline: none;
  border-color: transparent;
  background: transparent;
}

.toolbar-file-name.is-unsaved {
  color: var(--text-muted);
}

.hint {
  font-size: var(--font-base);
  color: var(--text-muted);
  max-width: calc(var(--panel-width) * 2 + var(--scale-4));
  line-height: var(--line-height);
}

.mode-switch {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-xs) var(--space-md);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  background: var(--bg-control);
  cursor: pointer;
  user-select: none;
  font-size: var(--font-base);
  color: var(--text-primary);
}

.mode-switch:hover {
  background: var(--bg-control-hover);
}

.mode-switch input {
  margin: 0;
  accent-color: var(--accent);
}

#main {
  position: relative;
  flex: 1;
  display: flex;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
}

#canvasWrapper {
  position: relative;
  z-index: 1;
  flex: 1;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
  background: var(--bg-canvas);
  cursor: crosshair;
  touch-action: none;
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  user-select: none;
}

#canvasWrapper.canvas-drop-target {
  outline: 2px dashed var(--accent-ring);
  outline-offset: -6px;
}

#canvasWrapper .card,
#canvasWrapper .card * {
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  user-select: none;
}

#canvasWrapper input,
#canvasWrapper textarea,
#canvasWrapper [contenteditable="true"],
#canvasWrapper [contenteditable="true"] * {
  -webkit-touch-callout: default;
  -webkit-user-select: text;
  user-select: text;
}

.card,
.card-resize-top,
.card-resize-bottom,
.card-resize-left,
.card-resize-right,
.card-resize-corner,
.card-link-handle,
.link-endpoint,
.color-picker-wheel,
.color-picker-spectrum,
.color-picker-header {
  touch-action: none;
}

@media (max-width: 700px), (pointer: coarse) {
  html,
  body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    overscroll-behavior: none;
  }

  body {
    position: fixed;
    inset: 0;
  }

  #app {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100vh;
    height: 100dvh;
    max-height: 100dvh;
    overflow: hidden;
  }

  #toolbar {
    position: sticky;
    top: 0;
    flex: 0 0 auto;
    width: 100%;
    box-sizing: border-box;
    padding-top: max(var(--space-sm), env(safe-area-inset-top));
    padding-left: max(var(--space-md), env(safe-area-inset-left));
    padding-right: max(var(--space-md), env(safe-area-inset-right));
  }
}

@media (pointer: coarse) {
  :root {
    --control: 44px;
    --float-control: 40px;
    --resize-hit: 18px;
    --link-handle-size: 20px;
    --link-handle-offset: -10px;
  }

  button,
  select,
  input {
    font-size: 16px;
  }

  .card-link-handle {
    border-width: 2px;
  }

  .link-toolbar {
    max-width: calc(100vw - 16px);
    overflow-x: auto;
    overscroll-behavior-x: contain;
  }

  .canvas-toolbar {
    max-width: calc(100vw - 16px);
    overflow-x: auto;
    scrollbar-width: none;
  }

  .canvas-toolbar::-webkit-scrollbar {
    display: none;
  }
}

@media (max-width: 700px) {
  .toolbar-brand {
    font-size: var(--font-base);
  }

  .toolbar-file-name {
    width: 42vw;
  }

  #sidePanel {
    position: absolute;
    inset: 0 0 0 auto;
    width: min(88vw, var(--panel-width));
    box-shadow: var(--shadow-md);
  }

  #sidePanel.collapsed {
    position: relative;
    inset: auto;
    width: 0;
    box-shadow: none;
  }

  .side-panel-toggle {
    width: 36px;
    height: 64px;
  }

  .color-picker {
    max-width: calc(100vw - 12px);
    max-height: calc(100dvh - 12px);
    overflow: auto;
  }

  .canvas-toolbar {
    bottom: max(8px, env(safe-area-inset-bottom));
  }
}

body.note-mode #canvasWrapper {
  background-color: var(--bg-canvas);
}

body.note-mode #axisLayer {
  display: none;
}

body.note-mode #xAxisHandle,
body.note-mode #yAxisHandle {
  display: none;
}

.map-layer {
  display: none;
  position: absolute;
  inset: 0;
  z-index: 2;
}

body.map-mode #mapLayer {
  display: block;
}

body.map-mode #mapLayer[aria-hidden="true"] {
  display: block;
}

body.map-mode #axisLayer,
body.map-mode #axisHitLayer,
body.map-mode #cardLayer,
body.map-mode #xAxisHandle,
body.map-mode #yAxisHandle,
body.map-mode #snapToggleBtn,
body.map-mode #dotMatrixToggleBtn {
  display: none !important;
}

body:not(.note-mode) #dotMatrixToggleBtn {
  display: none !important;
}

body.map-mode #canvasWrapper {
  cursor: default;
}

body.map-location-pick-mode #canvasWrapper,
body.map-location-pick-mode #mapLayer,
body.map-location-pick-mode #mapLayer *,
body.map-location-pick-mode .leaflet-container {
  cursor: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 16 16'%3E%3Cpath d='M8 13.1C5.5 10 4.2 8.1 4.2 6.1A3.8 3.8 0 0 1 11.8 6.1C11.8 8.1 10.5 10 8 13.1z' fill='white' stroke='black' stroke-width='1.3'/%3E%3Ccircle cx='8' cy='6.1' r='1.35' fill='none' stroke='black' stroke-width='1.1'/%3E%3C/svg%3E") 8 20, crosshair !important;
}

body.map-mode .map-timeline {
  display: flex;
}

body.map-mode .map-timeline.hidden {
  display: none !important;
}

.map-timeline {
  display: none;
  position: absolute;
  left: 50%;
  right: auto;
  width: min(420px, calc(100% - var(--space-md) * 2));
  max-width: 420px;
  bottom: calc(
    var(--scale-1) + var(--space-xs) + var(--space-xs) * 2 + var(--control) + var(--space-sm)
  );
  z-index: 12;
  flex-direction: column;
  --map-timeline-h: 0.95;
  gap: calc(var(--space-xs) * var(--map-timeline-h));
  padding: calc(var(--space-xs) * var(--map-timeline-h)) var(--space-sm) calc(var(--space-sm) * var(--map-timeline-h));
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--bg-toolbar) 92%, transparent);
  border: 1px solid var(--border-default);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(10px);
  pointer-events: auto;
  transform: translateX(-50%);
}

.map-range-readout {
  font-size: calc(var(--font-xs) * var(--map-timeline-h));
  color: var(--text-secondary);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.map-range-slider {
  position: relative;
  height: calc(var(--scale-2) * var(--map-timeline-h));
  touch-action: none;
  user-select: none;
}

.map-range-rail {
  position: absolute;
  left: 0;
  right: 0;
  top: calc((var(--scale-1) - 4px) * var(--map-timeline-h));
  height: calc(4px * var(--map-timeline-h));
  cursor: pointer;
}

.map-range-track-bg,
.map-range-selection {
  position: absolute;
  top: 0;
  height: 100%;
  border-radius: 999px;
}

.map-range-track-bg {
  left: 0;
  right: 0;
  background: var(--border-default);
}

.map-range-selection {
  background: linear-gradient(
    180deg,
    color-mix(in srgb, var(--accent) 72%, transparent),
    color-mix(in srgb, var(--text-secondary) 88%, transparent)
  );
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent) 24%, transparent);
}

.map-range-handle {
  position: absolute;
  top: calc((var(--space-xs) - 1px) * var(--map-timeline-h));
  width: 10px;
  height: calc((var(--scale-2) - 2px) * var(--map-timeline-h));
  margin-left: -5px;
  padding: 0;
  border: 1px solid var(--handle-border);
  border-radius: 999px;
  background: linear-gradient(180deg, var(--handle-bg), color-mix(in srgb, var(--handle-bg) 72%, var(--bg-control)));
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--bg-toolbar) 70%, transparent), var(--shadow-sm);
  cursor: ew-resize;
  z-index: 2;
}

.map-range-handle:hover {
  background: linear-gradient(180deg, var(--handle-hover), var(--handle-bg));
  box-shadow: 0 0 0 2px var(--handle-glow), var(--shadow-sm);
}

.map-range-handle:focus {
  outline: none;
  box-shadow: 0 0 0 2px var(--accent-ring), var(--shadow-sm);
}

.map-range-handle-end {
  z-index: 3;
}

.map-range-ticks {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: calc(8px * var(--map-timeline-h));
  pointer-events: none;
}

.map-range-tick {
  position: absolute;
  bottom: 0;
  width: 1px;
  height: calc(5px * var(--map-timeline-h));
  margin-left: -0.5px;
  background: var(--border-strong);
  opacity: 0.35;
}

.map-range-tick.is-major {
  height: calc(8px * var(--map-timeline-h));
  opacity: 0.6;
}

.map-dot-marker {
  background: transparent !important;
  border: none !important;
  pointer-events: auto !important;
}

.map-dot-hit {
  width: 11px;
  height: 11px;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

.map-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: 1.5px solid rgba(255, 255, 255, 0.92);
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.35);
  cursor: pointer;
  pointer-events: auto;
  box-sizing: content-box;
}

.map-dot.person {
  background: #5b8fd4;
}

.map-dot.event {
  background: #c4705a;
}

.map-dot.selected {
  box-shadow: 0 0 0 2px var(--accent), 0 0 0 4px rgba(0, 0, 0, 0.25);
  transform: scale(1.15);
}

.map-dot-tooltip {
  position: fixed;
  z-index: 500;
  transform: translate(-50%, calc(-100% - 3px));
  max-width: min(280px, calc(100vw - var(--space-md) * 2));
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--bg-toolbar) 92%, transparent);
  border: 1px solid var(--border-default);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(10px);
  color: var(--text-primary);
  font-size: var(--font-xs);
  line-height: var(--line-height);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  pointer-events: none;
}

.map-dot-tooltip.hidden {
  display: none;
}

.map-catalog-tree {
  display: flex;
  flex-direction: column;
  gap: 0;
  font-size: inherit;
  line-height: var(--line-height);
}

.map-tree-empty {
  margin: 0;
  color: var(--text-secondary);
}

.map-tree-children {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.map-catalog-child-list {
  border-left: 2px solid var(--accent);
  margin: 0 0 var(--space-xs);
  padding: var(--space-sm) 0 0 var(--space-md);
}

.map-catalog-group-row,
.map-catalog-card-row {
  cursor: default;
}

.map-catalog-child-list > .work-control-row:first-child {
  border-top: 0;
  padding-top: 0;
}

.map-catalog-group-row .map-tree-label {
  display: block;
  width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font: inherit;
  font-weight: 650;
}

.map-tree-visibility {
  flex-shrink: 0;
}

.map-tree-visibility.is-indeterminate {
  opacity: 0.68;
}

.map-tree-toggle {
  width: 20px;
  height: 20px;
  padding: 0;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  flex: 0 0 20px;
  transition: color 0.16s ease;
}

.map-tree-toggle:hover {
  color: var(--text-primary);
}

.map-tree-chevron {
  display: inline-block;
  width: 12px;
  text-align: center;
}

.map-tree-label {
  flex: 1;
  min-width: 0;
  font-weight: 600;
  color: var(--text-primary);
}

.bce-century-label.is-hidden-for-wrap {
  display: none !important;
}

.map-side-card-details {
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid var(--border-soft);
}

.leaflet-container {
  background: #aad3df;
  font: inherit;
}

#canvasWrapper:active {
  cursor: crosshair;
}

.selection-marquee {
  position: absolute;
  z-index: 50;
  border: 1px dashed var(--accent);
  background: var(--accent-soft);
  pointer-events: none;
}

.selection-marquee.hidden {
  display: none;
}

#axisLayer,
#cardLayer {
  position: absolute;
  inset: 0;
}

#axisLayer {
  z-index: 1;
}

#axisHitLayer {
  position: absolute;
  inset: 0;
  z-index: 11;
  pointer-events: none;
  overflow: visible;
}

.century-unlock-hit {
  position: absolute;
  top: calc(var(--scale-2) + var(--space-xs));
  min-width: 3.5em;
  height: calc(var(--font-xs) * var(--line-height) + var(--space-xs));
  pointer-events: auto;
  cursor: pointer;
}

#snapGuideLayer {
  z-index: 15;
}

#cardLayer {
  z-index: 10;
}

.snap-guide-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: visible;
}

.snap-guide-line {
  position: absolute;
  pointer-events: none;
}

.snap-guide-line.vertical {
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--snap-guide);
}

.snap-guide-line.horizontal {
  left: 0;
  right: 0;
  height: 1px;
  background: var(--snap-guide);
}

.snap-guide-line.size-match {
  background: var(--snap-guide-size);
}

.snap-guide-line.line-axis {
  background: var(--snap-guide-axis);
}

#linkDefs {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
  pointer-events: none;
}

.link-object,
.link-endpoint-object,
.link-preview-layer {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  overflow: visible;
}

.link-object-svg {
  display: block;
  width: 100%;
  height: 100%;
  overflow: visible;
}

#xAxisHandle,
#yAxisHandle {
  display: none;
  z-index: 40;
}

.link-object path,
.link-object line,
.link-preview-layer path,
.link-preview-layer line {
  stroke: var(--link-stroke);
  stroke-width: var(--stroke-base);
  fill: none;
  pointer-events: stroke;
  cursor: pointer;
}

.link-object .link-line.arrow-end,
.link-preview-layer .link-preview.arrow-end {
  marker-end: url(#arrowHead);
}

.link-object .link-line.arrow-both {
  marker-end: url(#arrowHead);
  marker-start: url(#arrowHeadStart);
}

.link-object .link-line {
  stroke: var(--link-stroke);
}

.link-object .link-line.selected {
  stroke: var(--link-selected);
}

@keyframes title-caret-blink {
  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0;
  }
}

.card-title-label.inline-editing:empty {
  min-width: 0.6em;
  caret-color: transparent;
}

.card-title-label.inline-editing:empty::after {
  content: "";
  display: inline-block;
  width: 1px;
  height: 1em;
  background: currentColor;
  vertical-align: text-bottom;
  animation: title-caret-blink 1s step-end infinite;
  pointer-events: none;
}

.link-preview-layer .link-preview {
  stroke: var(--link-preview);
  stroke-width: calc(var(--stroke-base) * 1.125);
  stroke-dasharray: calc(var(--scale-1) / 2.167) calc(var(--scale-0) / 2);
  pointer-events: none;
}

.link-preview-layer .link-preview.can-connect {
  stroke: var(--link-stroke);
  stroke-width: var(--stroke-base);
  stroke-dasharray: none;
}

.link-endpoint-object .link-endpoint {
  fill: var(--link-endpoint);
  stroke: var(--handle-border);
  stroke-width: 1;
  cursor: grab;
  pointer-events: auto;
}

.link-endpoint-object .link-endpoint:active {
  cursor: grabbing;
}

.link-endpoint-object .link-endpoint.from {
  fill: var(--link-endpoint);
}

.link-endpoint-object .link-endpoint.to {
  fill: var(--link-endpoint);
}

html.link-endpoint-dragging,
html.link-endpoint-dragging *,
body.link-endpoint-dragging,
body.link-endpoint-dragging * {
  cursor: grabbing !important;
}

body.link-endpoint-dragging .link-endpoint-object .link-endpoint {
  pointer-events: none;
}

body.link-endpoint-dragging .card-link-handle {
  display: none;
}

html.link-endpoint-dragging #cardLayer,
html.link-endpoint-dragging #cardLayer *,
body.link-endpoint-dragging #cardLayer,
body.link-endpoint-dragging #cardLayer *,
html.link-endpoint-dragging .card-link-handle,
body.link-endpoint-dragging .card-link-handle,
html.link-endpoint-dragging .card,
body.link-endpoint-dragging .card,
html.link-endpoint-dragging .link-endpoint-object .link-endpoint,
body.link-endpoint-dragging .link-endpoint-object .link-endpoint {
  cursor: grabbing !important;
}

html.link-endpoint-dragging #canvasWrapper,
html.link-endpoint-dragging #canvasWrapper:active,
body.link-endpoint-dragging #canvasWrapper,
body.link-endpoint-dragging #canvasWrapper:active {
  cursor: grabbing !important;
}

.drag-cursor-overlay {
  position: fixed;
  inset: 0;
  z-index: 2147483647;
  cursor: grabbing !important;
  background: transparent;
  pointer-events: none;
  touch-action: none;
}

.drag-cursor-grip {
  position: fixed;
  left: 0;
  top: 0;
  z-index: 2147483647;
  width: 22px;
  height: 22px;
  pointer-events: none;
  color: var(--text-primary);
  filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.42));
  transform: translate3d(-999px, -999px, 0);
}

.drag-cursor-grip svg {
  display: block;
  width: 100%;
  height: 100%;
}

body.link-endpoint-dragging .drag-cursor-grip {
  display: none;
}

#linkDefs marker path {
  fill: var(--link-marker);
  stroke: none;
}

.axis-label {
  position: absolute;
  color: var(--axis-label);
  font-size: var(--font-xs);
  pointer-events: none;
}

.limit-label {
  color: var(--text-secondary);
}

.year-line {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--grid-fine);
  pointer-events: none;
}

.century-line {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--grid-major);
  pointer-events: none;
}

.century-label {
  position: absolute;
  top: calc(var(--scale-2) + var(--space-xs));
  color: var(--text-secondary);
  font-size: var(--font-xs);
  white-space: nowrap;
  pointer-events: none;
}

.geologic-zone-label,
.holocene-pivot-label {
  white-space: nowrap;
}

.geologic-boundary-label.is-hidden-for-boundary,
.geologic-ma-label.is-hidden-for-boundary {
  display: none !important;
}

.geologic-ma-label,
.deep-time-ma-label,
.holocene-pivot-ma-label {
  color: var(--text-secondary);
  font-size: calc(var(--font-xs) * 0.92);
  white-space: nowrap;
}

.geologic-zone-line,
.deep-time-ma-line,
.holocene-pivot-line {
  background: var(--grid-major);
}

.y-line {
  position: absolute;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--grid-fine);
  pointer-events: none;
}

.zero-line {
  background: var(--grid-zero);
}

#xAxisHandle {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: calc(var(--scale-3) + var(--space-xs));
  background: var(--axis-handle-bg);
  border-top: 1px solid var(--axis-handle-border);
  cursor: ew-resize;
}

#xAxisHandle::after {
  content: "X";
  position: absolute;
  right: var(--space-lg);
  bottom: var(--space-sm);
  font-size: var(--font-xs);
  color: var(--text-secondary);
}

#yAxisHandle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: calc(var(--scale-3) + var(--scale-0));
  background: var(--axis-handle-bg);
  border-right: 1px solid var(--axis-handle-border);
  cursor: ns-resize;
}

#yAxisHandle::after {
  content: "Y";
  position: absolute;
  left: var(--space-md);
  top: var(--space-md);
  font-size: var(--font-xs);
  color: var(--text-secondary);
}

.card {
  position: absolute;
  min-width: 0;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  color: var(--card-text);
  padding: var(--card-pad-y) var(--card-pad-x);
  line-height: var(--card-text-line-height);
  cursor: grab;
  user-select: none;
  overflow: hidden;
  white-space: nowrap;
  box-shadow: var(--shadow-sm);
  z-index: 10;
}

.card.card-title-wrap,
.card.card-title-wrap > .card-title,
.card.card-title-wrap > .card-title-row,
.card.card-title-wrap > .card-title-label,
.card.card-title-wrap > .card-content,
.card.card-title-wrap > .card-content * {
  white-space: normal;
  word-break: break-word;
}

.card > .card-title,
.card > .card-title-row,
.card > .card-title-label {
  display: flex;
  flex-direction: column;
  max-width: 100%;
  overflow: hidden;
  line-height: var(--card-text-line-height);
  box-sizing: border-box;
}

.card > .card-title-row {
  flex-direction: row;
  align-items: flex-start;
  gap: var(--card-title-visibility-gap, 0.35em);
  flex-shrink: 0;
  align-self: stretch;
  min-width: 0;
}

.card-title-row.title-hidden > .card-title-label {
  display: none;
}

.card-title-row.title-hidden {
  min-width: var(--card-title-visibility-size, 1.2em);
  min-height: var(--card-title-visibility-size, 1em);
}

.card-title-visibility {
  flex: 0 0 auto;
  width: var(--card-title-visibility-size, 1em);
  height: var(--card-title-visibility-size, 1em);
  margin: 0;
  padding: 0;
  border: none;
  background: transparent;
  color: inherit;
  cursor: pointer;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: auto;
  transition: opacity 0.15s ease;
}

.card-title-visibility:hover,
.card-title-visibility:focus-visible {
  opacity: 1;
}

.card-title-visibility-icon {
  width: var(--card-title-visibility-size, 1em);
  height: var(--card-title-visibility-size, 1em);
  display: block;
}

.card-title-row > .card-title-label {
  flex: 1 1 auto;
  min-width: 0;
  align-self: stretch;
}

.card-title-label.align-left,
.card-content.align-left,
.card-content.align-left .card-content-list {
  text-align: left;
}

.card-title-label.align-center,
.card-content.align-center,
.card-content.align-center .card-content-list {
  text-align: center;
}

.card-title-label.align-right,
.card-content.align-right,
.card-content.align-right .card-content-list {
  text-align: right;
}

.card-content.valign-top {
  justify-content: flex-start;
}

.card-content.valign-center {
  justify-content: center;
}

.card-content.valign-bottom {
  justify-content: flex-end;
}

.card.card-title-valign-top {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  justify-content: flex-start;
}

.card.card-title-valign-center:not(.note) {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  justify-content: center;
}

.card.note.card-title-valign-center {
  justify-content: center;
}

.card.note.card-title-valign-center::before {
  display: none;
}

.card.note.card-title-valign-center .card-content {
  flex: 0 0 auto;
  min-height: 0;
}

.card.card-title-valign-bottom:not(.note) {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  justify-content: flex-end;
}

.card.note.card-title-valign-bottom .card-title-row {
  order: 2;
}

.card.note.card-title-valign-bottom .card-content {
  order: 1;
  flex: 0 0 auto;
  min-height: 0;
}

.card-title-label.is-bold {
  font-weight: 700;
}

.card > .card-title {
  white-space: inherit;
}

.card.free {
  white-space: nowrap;
}

.card:active {
  cursor: grabbing;
}

.card.selected {
  border-color: var(--accent);
  box-shadow:
    0 0 0 2px var(--accent-ring),
    var(--shadow-sm);
}

body.parent-pick-mode #canvasWrapper {
  cursor: crosshair;
}

body.canvas-frozen #canvasWrapper {
  pointer-events: none;
  cursor: default;
}

.card.parent-pick-child {
  outline: 2px dashed var(--pick-child-outline);
  outline-offset: 2px;
}

.card.parent-pick-target {
  border-color: var(--pick-target-border);
  box-shadow:
    0 0 0 2px var(--pick-target-ring),
    var(--shadow-sm);
}

.parent-pick-banner {
  padding: 0;
}

.parent-pick-banner p {
  margin: var(--space-sm) 0 0;
  line-height: var(--line-height);
}

.parent-pick-confirm {
  border-color: var(--pick-confirm-border);
  background: var(--pick-confirm-bg);
}

.card.polity {
  background: var(--card-polity-bg);
  border-color: var(--card-polity-border);
}

.card.place {
  background: var(--card-place-bg);
  border-color: var(--card-place-border);
  color: var(--card-place-text);
}

.card.person {
  background: var(--card-person-bg);
  border-color: var(--card-person-border);
}

.card.event {
  background: var(--card-event-bg);
  border-color: var(--card-event-border);
}

.card.event.has-event-context > .card-title-row > .card-title-label {
  font-weight: 700;
}

.card.note {
  background: var(--card-note-bg);
  border-color: var(--card-note-border);
  overflow: hidden;
}

.card.free {
  background: var(--card-free-bg);
  border-color: var(--card-free-border);
  color: var(--card-free-text);
}

.card.free,
.card.note {
  white-space: normal;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  justify-content: flex-start;
}

.card-title-label.is-placeholder {
  color: var(--text-muted);
}

.card-title-label {
  position: relative;
  z-index: 3;
  flex-shrink: 0;
  align-self: stretch;
  max-width: 100%;
  line-height: var(--card-text-line-height);
  cursor: text;
  user-select: text;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card:is(.free, .note) > .card-title-row {
  position: relative;
  z-index: 8;
  display: grid;
  grid-template-columns: var(--card-title-visibility-size, 1em) minmax(0, 1fr);
  column-gap: var(--card-title-visibility-gap, 0.35em);
  align-items: start;
  flex: 0 0 auto;
  align-self: stretch;
  width: 100%;
  color: inherit;
}

.card:is(.free, .note) > .card-title-row:has(> .card-title-label.align-center) {
  grid-template-columns:
    var(--card-title-visibility-size, 1em)
    minmax(0, 1fr)
    var(--card-title-visibility-size, 1em);
}

.card:is(.free, .note) > .card-title-row.title-hidden {
  grid-template-columns: var(--card-title-visibility-size, 1em);
}

.card:is(.free, .note) > .card-title-row > .card-title-visibility {
  grid-column: 1;
  grid-row: 1;
  align-self: start;
}

.card:is(.free, .note) > .card-title-row > .card-title-label {
  grid-column: 2;
  grid-row: 1;
  width: auto;
  min-width: 0;
  box-sizing: border-box;
  color: inherit;
  white-space: nowrap;
}

.card:is(.free, .note) > .card-title-row > .card-title-label.align-center {
  text-align: center;
}

.card:is(.free, .note) > .card-title-row > .card-title-label.align-right {
  text-align: right;
}

.card:is(.free, .note) .card-title-row.card-text-wrap > .card-title-label {
  white-space: normal;
}

.card.note.note-title-collapsed .card-title-row.title-hidden {
  position: relative;
  z-index: 6;
  flex: 0 0 auto;
  align-self: stretch;
  width: 100%;
  min-width: 0;
  min-height: 0;
  overflow: visible;
  pointer-events: none;
  box-sizing: border-box;
}

.card.note.note-title-collapsed .card-title-row.title-hidden .card-title-visibility {
  pointer-events: auto;
}

.card.note .card-title-label {
  flex: 0 0 auto;
  align-self: stretch;
  flex-shrink: 0;
  white-space: nowrap;
}

.card.note .card-content.content-fills-title {
  flex: 1 1 auto;
  align-self: stretch;
  min-height: 0;
}

.card.note.note-title-collapsed .card-content.content-fills-title {
  margin-top: 0;
}

.card.note .card-content {
  position: relative;
  z-index: 4;
  flex: 0 0 auto;
  min-height: 0;
  overflow-x: hidden;
  overflow-y: hidden;
  cursor: text;
}

.card.note .card-content.has-vertical-scroll {
  flex: 1 1 auto;
  min-height: 0;
  overflow-x: hidden;
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
}

.card.note .card-content.has-vertical-scroll {
  display: block;
}

.card.note .card-content.has-vertical-scroll.inline-editing.content-edit-lines {
  display: block;
}

.card.note .card-content.has-vertical-scroll > * {
  flex-shrink: 0;
}

.card.note .card-content.has-vertical-scroll.inline-editing.content-edit-lines > .content-edit-line {
  flex-shrink: 0;
}

.card-content {
  position: relative;
  z-index: 2;
  flex: 1;
  min-height: 0;
  margin-top: 0;
  margin-bottom: var(--resize-hit);
  white-space: pre-wrap;
  word-break: break-word;
  overflow: hidden;
  cursor: text;
  user-select: text;
  display: flex;
  flex-direction: column;
  width: 100%;
  box-sizing: border-box;
  line-height: var(--card-text-line-height);
}

.card-content.is-bold {
  font-weight: 700;
  line-height: var(--card-text-line-height);
}

.card-content.align-left,
.card-content.align-left .card-content-list {
  text-align: left;
}

.card-content.align-center,
.card-content.align-center .card-content-list {
  text-align: center;
  list-style-position: inside;
}

.card-content.align-right,
.card-content.align-right .card-content-list {
  text-align: right;
  list-style-position: inside;
}

.card-content-list {
  margin: 0;
  padding-left: 1.2em;
  line-height: var(--card-text-line-height);
}

.card-content-list li {
  margin: 0;
  padding: 0;
  line-height: inherit;
}

.card-content.align-center .card-content-list,
.card-content.card-markdown-content.align-center :is(ul, ol) {
  list-style-position: inside;
}

.card-content.align-right .card-content-list,
.card-content.card-markdown-content.align-right :is(ul, ol) {
  list-style-position: inside;
}

.card-title-label.inline-editing,
.card-title.inline-editing,
.card-content.inline-editing {
  outline: none;
  user-select: text;
  cursor: text;
}

.card-title-label.inline-editing,
.card-title.inline-editing {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: clip;
  flex-shrink: 0;
}

.card:is(.free, .note) > .card-title-row > .card-title-label.inline-editing {
  grid-column: 2;
  width: auto;
  min-width: 0;
}

.card:is(.free, .note) > .card-title-row:has(> .card-title-label.inline-editing.align-center) {
  grid-template-columns: 1em 1fr 1em;
}

.card-content.inline-editing {
  white-space: normal;
  overflow-x: hidden;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
}

.card-content.has-vertical-scroll.inline-editing {
  overflow-y: auto;
}

.card-content.inline-editing.content-edit-lines {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.card-content.inline-editing .content-edit-line {
  min-height: 1em;
  line-height: var(--card-text-line-height);
  white-space: pre-wrap;
  word-break: break-word;
  position: relative;
}

.card-content.inline-editing .content-edit-line[data-list-type="bullet"] {
  padding-left: 1.2em;
}

.card-content.inline-editing .content-edit-line[data-list-type="bullet"]::before {
  content: "•";
  position: absolute;
  left: 0;
}

.card-content.inline-editing .content-edit-line[data-list-type="number"] {
  padding-left: 1.5em;
}

.card-content.inline-editing .content-edit-line[data-list-type="number"]::before {
  content: attr(data-list-number) ".";
  position: absolute;
  left: 0;
}

.card-content-line {
  white-space: pre-wrap;
  word-break: break-word;
  line-height: var(--card-text-line-height);
}

.card-content-line.align-center,
.card-content.inline-editing .content-edit-line.align-center {
  text-align: center;
}

.card-content-line.align-right,
.card-content.inline-editing .content-edit-line.align-right {
  text-align: right;
}

.card-content-line.align-left,
.card-content.inline-editing .content-edit-line.align-left {
  text-align: left;
}

.card-content-list .card-content-line.align-center,
.card-content-list .card-content-line.align-right {
  list-style-position: inside;
}

.card-content-lines .card-content-list .card-content-line {
  list-style: inherit;
}

.card-content.card-content-lines {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.card-content-lines > .card-content-line,
.card.note .card-content-lines > .card-content-line {
  min-height: 1em;
  line-height: var(--card-text-line-height);
  position: relative;
}

.card-content-plain {
  white-space: pre-wrap;
  word-break: break-word;
}

.card.work {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  justify-content: flex-start;
  text-align: left;
  background: var(--card-work-bg);
  border-color: var(--card-work-border);
  color: var(--card-work-text);
}

.card.work > .card-title-row,
.card.work > .card-title-label {
  flex: 0 0 auto;
  min-width: 0;
}

.card.work > .card-content {
  flex: 0 0 auto;
  position: relative;
  z-index: 14;
  min-height: calc(var(--resize-hit) * 2.5);
  margin-bottom: 0;
  padding-top: 2px;
  padding-bottom: calc(var(--resize-hit) + 2px);
  box-sizing: border-box;
  pointer-events: auto;
  cursor: text;
  white-space: nowrap;
  word-break: normal;
  overflow-wrap: normal;
}

.card.work > .card-content.inline-editing .content-edit-line {
  white-space: nowrap;
  word-break: normal;
  overflow-wrap: normal;
}

.card.work > .card-content.inline-editing.content-edit-lines {
  display: flex;
  flex-direction: column;
  overflow: visible;
}

.card.relation {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  justify-content: center;
  min-width: 0;
  padding-left: 0;
  padding-right: 0;
  text-align: center;
  background: var(--card-relation-bg);
  border-color: var(--card-relation-border);
  color: var(--card-relation-text);
}

.card.relation > .card-title-row {
  flex: 0 0 auto;
  min-width: 0;
}

.card.relation > .card-title-label {
  flex: 0 0 auto;
  align-self: stretch;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
  line-height: var(--card-text-line-height);
}

.card.relation > .card-title-label:empty {
  width: 100%;
  min-height: 1em;
}

.card.child-card {
  box-shadow:
    inset 0 0 0 1px var(--border-subtle),
    var(--shadow-sm);
}

.card.event-context {
  z-index: 18;
  padding: calc(var(--card-pad-y) * 0.618) calc(var(--card-pad-x) * 0.8);
  box-shadow:
    0 calc(var(--space-xs) * 0.4) var(--space-md) rgba(0, 0, 0, 0.36),
    0 0 0 1px var(--border-subtle);
}

.card-resize-top,
.card-resize-bottom {
  position: absolute;
  left: 0;
  width: 100%;
  height: var(--resize-hit);
  cursor: ns-resize;
  background: transparent;
  border: none;
  z-index: 12;
}

.card-resize-top {
  top: 0;
}

.card-resize-bottom {
  bottom: 0;
}

.card-resize-left,
.card-resize-right {
  position: absolute;
  top: 0;
  width: var(--resize-hit);
  height: 100%;
  cursor: ew-resize;
  background: transparent;
  border: none;
  z-index: 12;
}

.card-resize-left {
  left: 0;
}

.card-resize-right {
  right: 0;
}

.card-resize-corner {
  position: absolute;
  width: var(--resize-hit);
  height: var(--resize-hit);
  z-index: 13;
  background: transparent;
  border: none;
}

.card-resize-corner.top-left {
  top: 0;
  left: 0;
  cursor: nwse-resize;
}

.card-resize-corner.top-right {
  top: 0;
  right: 0;
  cursor: nesw-resize;
}

.card-resize-corner.bottom-left {
  bottom: 0;
  left: 0;
  cursor: nesw-resize;
}

.card-resize-corner.bottom-right {
  bottom: 0;
  right: 0;
  cursor: nwse-resize;
}

.card-link-handle {
  position: absolute;
  width: var(--link-handle-size);
  height: var(--link-handle-size);
  border-radius: 999px;
  background: var(--handle-bg);
  border: 1px solid var(--handle-border);
  box-shadow: 0 0 var(--space-sm) var(--handle-glow);
  cursor: crosshair;
  z-index: 50;
}

.card-link-handle.top {
  top: var(--link-handle-offset);
  left: 50%;
  transform: translateX(-50%);
}

.card-link-handle.right {
  right: var(--link-handle-offset);
  top: 50%;
  transform: translateY(-50%);
}

.card-link-handle.bottom {
  bottom: var(--link-handle-offset);
  left: 50%;
  transform: translateX(-50%);
}

.card-link-handle.left {
  left: var(--link-handle-offset);
  top: 50%;
  transform: translateY(-50%);
}

.card-link-handle:hover {
  background: var(--handle-hover);
  transform: scale(var(--phi));
}

.card-link-handle.top:hover,
.card-link-handle.bottom:hover {
  transform: translateX(-50%) scale(var(--phi));
}

.card-link-handle.left:hover,
.card-link-handle.right:hover {
  transform: translateY(-50%) scale(var(--phi));
}

.progress-overlay {
  position: absolute;
  left: calc(var(--scale-1) + var(--space-xs));
  bottom: calc(var(--scale-1) + var(--space-xs));
  z-index: 100;
  width: calc(var(--scale-4) * 3 + var(--scale-2));
  pointer-events: none;
}

.progress-overlay.hidden {
  display: none;
}

.progress-bar {
  width: 100%;
  height: calc(var(--space-xs) + 1px);
  background: var(--progress-track);
  border-radius: 999px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.progress-fill {
  width: 0%;
  height: 100%;
  background: var(--progress-fill);
  border-radius: 999px;
  transition: width 0.25s ease;
}

body.app-booting #sidePanel,
body.app-booting #sidePanel .side-panel-content {
  transition: none !important;
}

#sidePanel {
  position: relative;
  z-index: 2;
  width: var(--panel-width);
  min-width: 0;
  flex-shrink: 0;
  border-left: 1px solid var(--border-default);
  background: var(--bg-panel);
  padding: calc(var(--scale-1) + var(--space-xs)) calc(var(--scale-1) + var(--space-xs)) calc(var(--scale-1) + var(--space-xs)) calc(var(--scale-2) + var(--space-xs));
  overflow: visible;
  transition: width 0.22s ease, padding 0.22s ease, border-color 0.22s ease, background 0.22s ease;
}

#sidePanel.collapsed {
  width: 0;
  min-width: 0;
  padding: 0;
  border-left-color: transparent;
  background: transparent;
}

.side-panel-toggle {
  position: absolute;
  left: 0;
  top: 50%;
  z-index: 100;
  width: calc(var(--scale-2) + var(--space-xs));
  height: calc(var(--scale-3) + var(--scale-1));
  padding: 0;
  margin: 0;
  transform: translate(-50%, -50%);
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: var(--bg-control);
  color: var(--text-secondary);
  font-size: var(--font-md);
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  flex-shrink: 0;
  transition: transform 0.16s ease, background 0.16s ease, color 0.16s ease;
}

.side-panel-toggle:hover {
  background: var(--bg-control-hover);
  color: var(--text-primary);
}

#sidePanel.collapsed .side-panel-toggle:hover {
  transform: translate(calc(-50% - 15%), -50%);
}

.side-panel-toggle:active {
  transform: translate(-50%, calc(-50% + 1px));
}

#sidePanel.collapsed .side-panel-toggle:active {
  transform: translate(calc(-50% - 15%), calc(-50% + 1px));
}

.side-panel-content {
  position: relative;
  display: flex;
  flex-direction: column;
  min-width: calc(var(--panel-width) - var(--scale-4) - var(--scale-0));
  height: 100%;
  overflow-x: visible;
  overflow-y: hidden;
  opacity: 1;
  transition: opacity 0.16s ease;
  pointer-events: auto;
}

.side-panel-body {
  flex: 1;
  min-height: 0;
  overflow-x: visible;
  overflow-y: auto;
  padding-right: calc(var(--scale-3) + var(--scale-1));
}

.side-file-toolbar {
  position: absolute;
  right: var(--space-md);
  bottom: var(--space-md);
  z-index: 3;
  display: flex;
  flex-direction: column;
  gap: var(--side-file-toolbar-gap);
  padding: var(--side-file-toolbar-pad);
  background: var(--bg-control);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  box-shadow: var(--shadow-md);
  overflow: visible;
}

.side-file-toolbar-button {
  width: var(--side-file-toolbar-control);
  height: var(--side-file-toolbar-control);
  min-width: var(--side-file-toolbar-control);
  padding: 0;
  margin: 0;
  border-radius: 999px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-primary);
  font-size: var(--icon);
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
  cursor: pointer;
}

.side-file-toolbar-button:hover {
  background: var(--bg-control-hover);
}

.side-file-toolbar-button:active {
  transform: none;
}

.side-file-toolbar-button .side-file-toolbar-icon {
  width: var(--side-file-toolbar-icon-size);
  height: var(--side-file-toolbar-icon-size);
  min-width: var(--side-file-toolbar-icon-size);
  min-height: var(--side-file-toolbar-icon-size);
  flex-shrink: 0;
  display: block;
}

#sidePanel.collapsed .side-panel-content {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  overflow: hidden;
  min-width: 0;
  width: 0;
  height: 0;
}

.side-panel-heading {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

#sidePanel h2 {
  flex: 1;
  min-width: 0;
  margin: 0;
}

.group-directory-toggle {
  flex-shrink: 0;
  margin-top: 0;
}

.group-directory-toggle[hidden] {
  display: none;
}

.side-tutorial p {
  margin: var(--space-sm) 0 0;
  color: var(--text-secondary);
  line-height: var(--line-height);
}

.side-tutorial-wikidata {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.25em;
}

.side-tutorial-inline-icon {
  width: 1.15em;
  height: 1.15em;
  flex-shrink: 0;
  color: var(--text-secondary);
}

.info-row {
  margin: var(--space-md) 0;
  color: var(--text-secondary);
}

.info-label {
  color: var(--text-muted);
  font-size: var(--font-xs);
  margin-bottom: calc(var(--space-xs) / var(--phi));
}

#sidePanel .side-panel-body,
#selectedCardInfo {
  -webkit-user-select: text;
  user-select: text;
  -webkit-touch-callout: default;
}

.info-row-value {
  color: var(--text-primary);
  white-space: pre-wrap;
  -webkit-user-select: text;
  user-select: text;
  cursor: text;
}

.info-row-value a {
  cursor: pointer;
}

#selectedCardInfo .link-list-item .info-row-value {
  display: inline;
}

#sidePanel button,
#sidePanel input,
#sidePanel label.work-toggle,
.side-panel-toggle {
  -webkit-user-select: none;
  user-select: none;
  cursor: pointer;
}

.side-button {
  background: var(--bg-control);
  color: var(--text-primary);
  border: 1px solid var(--border-strong);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  cursor: pointer;
  margin-top: var(--space-sm);
}

.side-button:hover {
  background: var(--bg-control-hover);
}

.side-button-icon {
  align-items: center;
  display: inline-flex;
  justify-content: center;
  min-height: calc(var(--float-control) + var(--space-xs));
  min-width: calc(var(--float-control) + var(--space-xs));
  padding: var(--space-xs);
}

.side-icon-button {
  align-items: center;
  background: transparent;
  border: 0;
  color: var(--text-primary);
  display: inline-flex;
  justify-content: center;
  margin: 0;
}

.side-icon-button.side-button-icon {
  width: calc(var(--float-control) + var(--space-xs));
  height: calc(var(--float-control) + var(--space-xs));
  flex: 0 0 calc(var(--float-control) + var(--space-xs));
}

.side-icon-button.side-button-icon > .link-toolbar-icon {
  width: calc(var(--float-icon-lg) * 1.3);
  height: calc(var(--float-icon-lg) * 1.3);
  display: block;
}

.cross-mode-card-link-button > .canvas-toolbar-icon {
  width: var(--float-icon-lg);
  height: var(--float-icon-lg);
  display: block;
}

.side-panel-heading > .cross-mode-card-link-button {
  flex-shrink: 0;
  margin-right: var(--space-md);
  padding: 0;
}

.side-panel-heading > .cross-mode-card-link-button[hidden] {
  display: none;
}

.side-icon-button.map-tree-visibility {
  margin-right: var(--space-md);
}

.side-icon-button:hover,
.side-icon-button:focus-visible {
  background: var(--bg-control-hover);
}

.side-icon-button.is-active {
  background: var(--bg-control-hover);
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.36);
  transform: translateY(1px);
}

.group-transfer-button {
  margin-right: var(--space-md);
}

.group-name-button {
  background: transparent;
  border: 0;
  color: var(--text-primary);
  cursor: pointer;
  font: inherit;
  padding: 0;
  text-align: left;
}

.group-name-button:hover {
  color: var(--accent);
}

.group-member-button {
  background: transparent;
  border: 0;
  color: var(--text-primary);
  cursor: pointer;
  font: inherit;
  padding: 0;
  text-align: left;
}

.group-member-button:hover {
  color: var(--accent);
}

.group-name-button.is-selected {
  color: var(--accent);
}

.work-control-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  border-top: 1px solid var(--border-default);
  padding: var(--space-sm) 0;
}

.work-control-row.is-selected-group {
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  border-left: 2px solid var(--accent);
  padding-left: var(--space-sm);
}

.group-inline-editor {
  border-left: 2px solid var(--accent);
  margin: 0 0 var(--space-xs);
  padding: var(--space-sm) 0 0 var(--space-md);
}

.group-inline-editor .group-member-list {
  margin-bottom: 0;
}

.group-inline-editor .info-row:first-child {
  margin-top: 0;
}

.group-inline-editor .info-row:first-child .work-control-row:first-child {
  border-top: 0;
  padding-top: 0;
}

.group-row-actions {
  align-items: center;
  display: flex;
  flex-shrink: 0;
  gap: calc(var(--space-xs) / 2);
}

.group-row-main {
  min-width: 0;
  flex: 1;
}

.group-row-main > div:first-child {
  min-width: 0;
  overflow: hidden;
}

.group-order-row .group-name-button,
.group-member-order-row .group-member-button {
  display: block;
  max-width: 100%;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.group-member-order-row .group-member-button {
  flex: 1;
}

.group-order-row {
  cursor: grab;
  position: relative;
}

.group-order-row.map-catalog-group-row,
.group-order-row.map-catalog-card-row,
.group-order-row.map-catalog-group-row:active,
.group-order-row.map-catalog-card-row:active {
  cursor: default;
}

.map-catalog-card-row.is-selected {
  background: color-mix(in srgb, var(--accent) 16%, transparent);
}

.group-order-row:active {
  cursor: grabbing;
}

.group-order-row .group-row-actions,
.group-order-row .map-tree-toggle {
  cursor: default;
}

.group-order-row.is-order-dragging {
  opacity: 0.42;
}

.group-order-row.is-drop-before::before,
.group-order-row.is-drop-after::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  border-radius: 999px;
  background: var(--accent);
  pointer-events: none;
}

.group-order-row.is-drop-before::before {
  top: -1px;
}

.group-order-row.is-drop-after::after {
  bottom: -1px;
}

.group-order-row.is-drop-inside {
  background: color-mix(in srgb, var(--accent) 16%, transparent);
  box-shadow: inset 0 0 0 2px var(--accent);
}

.group-child-list {
  margin-top: var(--space-xs);
}

.child-group-order-row {
  min-height: calc(var(--float-control) + var(--space-sm));
}

.child-group-inline-editor {
  margin-left: 0;
}

.child-cards-section {
  margin-top: 0;
  margin-bottom: var(--space-md);
}

.child-cards-section > .info-label {
  margin-bottom: var(--space-xs);
}

.child-cards-empty {
  border-top: 1px solid var(--border-default);
  color: var(--text-muted);
  font-size: var(--font-xs);
  padding: var(--space-sm) 0;
}

.child-card-row {
  align-items: center;
}

.child-card-summary {
  min-width: 0;
  flex: 1;
}

.child-card-visibility {
  flex-shrink: 0;
  margin-right: var(--space-md);
  white-space: nowrap;
}

.work-control-title {
  font-size: var(--font-base);
  font-weight: 650;
  color: var(--text-primary);
  line-height: 1.35;
}

.work-control-meta {
  font-size: var(--font-xs);
  color: var(--text-muted);
}

.work-toggle {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--font-xs);
  color: var(--text-secondary);
}

.work-toggle input {
  cursor: pointer;
  accent-color: var(--accent);
}

.selected-list {
  border-top: 1px solid var(--border-default);
  margin-top: var(--space-md);
  padding-top: var(--space-md);
}

.selected-list-item {
  font-size: var(--font-base);
  color: var(--text-primary);
  padding: var(--space-xs) 0;
}

.relationship-button-row {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-top: var(--space-md);
}

.link-list {
  border-top: 1px solid var(--border-default);
  margin-top: var(--space-md);
  padding-top: var(--space-md);
}

.link-list-item {
  align-items: center;
  display: flex;
  font-size: var(--font-base);
  color: var(--text-primary);
  gap: calc(var(--space-xs) / 2);
  padding: var(--space-xs) 0;
  border-bottom: 1px solid var(--border-subtle);
}

.link-list-card-button {
  background: transparent;
  border: 0;
  color: var(--text-primary);
  flex: 1 1 0;
  font: inherit;
  min-width: 0;
  overflow: hidden;
  padding: 0;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.link-list-card-button:hover,
.link-list-card-button:focus-visible {
  color: var(--accent);
}

.link-list-arrow-button .link-toolbar-icon {
  width: var(--float-icon-lg);
  height: var(--float-icon-lg);
}

a {
  color: var(--link-color);
}

.link-toolbar {
  position: absolute;
  z-index: 60;
  display: inline-flex;
  align-items: center;
  gap: var(--float-toolbar-gap);
  padding: var(--float-toolbar-pad-y) var(--float-toolbar-pad-x);
  background: var(--bg-control);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  box-shadow: var(--shadow-md);
  transform: translate(-50%, -100%);
  pointer-events: auto;
}

.link-toolbar.hidden {
  display: none;
}

.link-toolbar .link-toolbar-button {
  width: var(--float-control);
  height: var(--float-control);
  min-width: var(--float-control);
  padding: 0;
  margin: 0;
  border-radius: 999px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-primary);
  font-size: var(--float-icon-lg);
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
}

.link-toolbar .link-toolbar-icon {
  width: calc(var(--float-icon-lg) * 1.3);
  height: calc(var(--float-icon-lg) * 1.3);
  display: block;
}

.link-toolbar .link-toolbar-layer-step-btn {
  align-items: center;
  justify-content: center;
}

.link-toolbar .link-toolbar-icon.link-toolbar-layer-extreme-icon {
  width: calc(var(--float-icon-lg) * 1.07 * 1.3);
  height: calc(var(--float-icon-lg) * 1.07 * 1.3);
}

.link-toolbar .link-toolbar-icon.link-toolbar-arrow-mode-icon {
  width: calc(var(--float-icon-lg) * 1.15 * 1.3);
  height: calc(var(--float-icon-lg) * 1.15 * 1.3);
}

.link-toolbar .link-toolbar-icon.link-toolbar-time-range-icon {
  width: calc(var(--float-icon-lg) * 1 );
  height: calc(var(--float-icon-lg) * 1 );
}

.link-toolbar .link-toolbar-list-none {
  display: block;
  width: var(--float-icon-lg);
  height: var(--float-icon-lg);
  line-height: var(--float-icon-lg);
  text-align: center;
  font-size: calc(var(--float-icon-lg) * 0.72);
  font-weight: 600;
}

.link-toolbar .link-toolbar-button:hover {
  background: var(--bg-control-hover);
}

.link-toolbar .link-toolbar-button.danger:hover {
  background: rgba(120, 120, 120, 0.18);
}

.link-toolbar .link-toolbar-button:active {
  transform: none;
}

.link-toolbar-divider {
  width: 1px;
  height: var(--float-toolbar-divider);
  background: var(--border-default);
  margin: 0 calc(var(--space-xs) / 2);
}

.link-toolbar .text-font-size-button {
  font-size: calc(var(--float-icon-lg) * 0.82);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.text-format-menu {
  position: absolute;
  z-index: 72;
  min-width: calc(var(--float-control) * 3.15);
  max-height: min(320px, calc(100vh - var(--toolbar-height) - var(--space-xl)));
  padding: calc(var(--float-toolbar-pad-y) * 1.2) 0;
  background: var(--bg-control);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transform: translateX(-50%);
  pointer-events: auto;
  overflow-x: hidden;
  overflow-y: auto;
}

.text-format-menu-button {
  width: 100%;
  min-height: var(--float-control);
  padding: 0 var(--space-md);
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--text-primary);
  font: inherit;
  font-size: var(--font-base);
  font-variant-numeric: tabular-nums;
  line-height: 1;
  display: grid;
  grid-template-columns: var(--float-icon-lg) minmax(0, 1fr);
  align-items: center;
  gap: var(--space-xs);
  text-align: left;
  white-space: nowrap;
}

.text-format-menu-button:hover,
.text-format-menu-button.active {
  background: var(--bg-control-hover);
}

.text-format-menu-check {
  width: var(--float-icon-lg);
  color: var(--text-primary);
  font-size: var(--float-icon-lg);
  line-height: 1;
  text-align: center;
}

.text-format-menu-label {
  overflow: hidden;
  text-overflow: ellipsis;
}

.canvas-toolbar {
  position: absolute;
  left: 50%;
  bottom: calc(var(--scale-1) + var(--space-xs));
  z-index: 60;
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs);
  background: var(--bg-control);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  box-shadow: var(--shadow-md);
  transform: translateX(-50%);
  pointer-events: auto;
}

.canvas-toolbar-divider {
  width: 1px;
  height: var(--toolbar-divider);
  background: var(--border-default);
  margin: 0 calc(var(--space-xs) / 2);
}

.canvas-toolbar .canvas-toolbar-button {
  width: var(--control);
  height: var(--control);
  min-width: var(--control);
  padding: 0;
  margin: 0;
  border-radius: 999px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-primary);
  font-size: var(--icon);
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
}

.canvas-toolbar .canvas-toolbar-button:hover {
  background: var(--bg-control-hover);
}

.canvas-toolbar .canvas-toolbar-button:focus {
  outline: none;
}

.canvas-toolbar .canvas-toolbar-button:active {
  transform: none;
  background: var(--bg-control-hover);
}

.canvas-toolbar .canvas-toolbar-button.hidden {
  display: none;
}

.canvas-toolbar .canvas-toolbar-icon {
  width: calc(var(--icon-lg) * 1.2);
  height: calc(var(--icon-lg) * 1.2);
  display: block;
  flex-shrink: 0;
}

.canvas-toolbar .canvas-toolbar-map-range-icon {
  width: calc(var(--icon-lg) * 1.25 );
  height: calc(var(--icon-lg) * 1.25 );
}

.canvas-toolbar .canvas-toolbar-lang {
  min-width: calc(var(--control) + var(--space-xs));
  font-size: var(--font-base);
  font-weight: 600;
  letter-spacing: calc(1em / var(--phi) / 10);
}

.canvas-toolbar .canvas-toolbar-icon-lg {
  font-size: calc(var(--icon-lg) * 1.2);
  line-height: 1;
}

.app-dialog {
  position: fixed;
  top: 0;
  left: 0;
  right: var(--side-panel-inset, 0px);
  bottom: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--scale-2) + var(--space-xs));
}

.app-dialog.hidden {
  display: none;
}

.app-dialog-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.48);
}

.app-dialog-box {
  position: relative;
  z-index: 1;
  width: min(calc(var(--popup-window-width) * 1.35), calc(100vw - var(--side-panel-inset, 0px) - var(--scale-4)));
  padding: calc(var(--popup-pad-y) + var(--space-xs)) calc(var(--popup-pad-x) + var(--space-xs)) calc(var(--popup-pad-y) + var(--space-xs));
  background: var(--bg-panel);
  border: 1px solid var(--border-strong);
  border-radius: var(--popup-radius);
  box-shadow: var(--shadow-md);
  font-family: inherit;
  font-size: var(--popup-font-base);
  line-height: var(--line-height);
}

.app-dialog-box.is-fit-content {
  width: max-content;
  max-width: calc(100vw - var(--side-panel-inset, 0px) - var(--scale-4));
}

.app-dialog-box.is-about {
  display: flex;
  flex-direction: column;
  width: min(calc(var(--popup-window-width) * 2.4), calc(100vw - var(--side-panel-inset, 0px) - var(--scale-4) * 2));
  min-height: calc(var(--popup-font-base) * 11);
}

.app-dialog-version {
  margin: 0 0 var(--space-md);
  color: var(--text-primary);
  font-family: inherit;
  font-size: var(--popup-font-base);
  font-weight: 600;
  letter-spacing: 0.03em;
  line-height: var(--line-height);
  text-align: center;
}

.app-dialog-message.is-nowrap {
  white-space: nowrap;
}

.app-dialog-message {
  margin: 0 0 calc(var(--popup-pad-y) + var(--space-xs));
  color: var(--text-primary);
  font-family: inherit;
  font-size: var(--popup-font-base);
  line-height: var(--line-height);
  white-space: pre-line;
}

.app-dialog-box.is-about .app-dialog-message {
  flex: 1 1 auto;
  margin-bottom: 0;
}

.app-dialog-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-md);
  margin-top: calc(var(--popup-pad-y) + var(--space-xs));
}

.app-dialog-box.is-about .app-dialog-footer {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  margin-top: auto;
  padding-top: var(--space-xl);
}

.app-dialog-copyright {
  margin: 0;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: calc(var(--popup-font-base) / 2);
  line-height: var(--line-height);
  text-align: center;
  white-space: pre-line;
}

.app-dialog-box.is-about .app-dialog-copyright {
  grid-column: 1 / -1;
  grid-row: 1;
  justify-self: center;
  width: 100%;
  min-width: 0;
}

.app-dialog-box.is-about .app-dialog-actions {
  grid-column: 3;
  grid-row: 1;
  justify-self: end;
  flex-shrink: 0;
  margin: 0;
  z-index: 1;
}

.app-dialog-input {
  width: 100%;
  margin: 0 0 calc(var(--popup-pad-y) + var(--space-xs));
  padding: var(--popup-pad-y) var(--popup-pad-x);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  background: var(--bg-control);
  color: var(--text-primary);
  font-family: inherit;
  font-size: var(--popup-font-base);
  line-height: var(--line-height);
}

.app-dialog-input.is-compact {
  font-size: calc(var(--popup-font-base) / 1.5);
  padding: calc(var(--popup-pad-y) / 1.5) calc(var(--popup-pad-x) / 1.5);
}

.app-dialog-input.hidden {
  display: none;
}

.app-dialog-choices {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-sm);
  margin: 0 0 calc(var(--scale-1) + var(--space-xs));
}

.app-dialog-choices.hidden {
  display: none;
}

.app-dialog-choice {
  min-width: 0;
  max-width: 100%;
  padding: calc(var(--popup-pad-y) * 0.85) var(--popup-pad-x);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  background: var(--bg-control);
  color: var(--text-primary);
  font: inherit;
  font-size: var(--popup-font-sm);
  text-align: center;
  cursor: pointer;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.app-dialog-choice:focus {
  outline: none;
}

.app-dialog-choice:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.app-dialog-choice:hover {
  background: var(--bg-control-hover);
}

.app-dialog-choice.active {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent);
}

.app-dialog-choice:active {
  transform: none;
}

.app-dialog-choices.is-quad {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.app-dialog-choices.is-single {
  grid-template-columns: minmax(0, 1fr);
}

.app-dialog-choices.is-single .app-dialog-choice {
  text-align: left;
}

.app-dialog-textarea {
  resize: vertical;
  min-height: calc(var(--popup-wheel-size) * 0.72);
  font-family: inherit;
  font-size: var(--popup-font-base);
  line-height: var(--line-height);
}

.app-dialog-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-ring);
}

.app-dialog-input::placeholder {
  color: var(--text-muted);
  opacity: 1;
}

@media (max-width: 700px), (pointer: coarse) {
  input[type="text"],
  input[type="search"],
  input[type="email"],
  input[type="url"],
  input[type="tel"],
  input[type="number"],
  input[type="password"],
  select,
  textarea {
    font-size: max(16px, 1em);
  }

  .app-dialog-input,
  .app-dialog-input.is-compact,
  .app-dialog-textarea {
    font-size: max(16px, var(--popup-font-base));
  }
}

.app-dialog-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-sm);
}

.app-dialog-button {
  min-width: calc(var(--popup-control) * 2.4);
  padding: calc(var(--popup-pad-y) * 0.85) calc(var(--popup-pad-x) + var(--space-xs));
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: var(--bg-control);
  color: var(--text-primary);
  font-size: var(--popup-font-sm);
  line-height: var(--line-height);
  cursor: pointer;
}

.app-dialog-button:hover {
  background: var(--bg-control-hover);
}

.app-dialog-button:focus {
  outline: none;
}

.app-dialog-button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

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

.app-dialog-button:active {
  transform: none;
}

.link-toolbar-color-button {
  padding: 0;
}

.link-toolbar-color-dot {
  width: calc(var(--float-icon-lg) * 0.72);
  height: calc(var(--float-icon-lg) * 0.72);
  border-radius: 50%;
  border: 1px solid var(--border-strong);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
  display: block;
}

.color-picker {
  position: fixed;
  z-index: 80;
  pointer-events: auto;
}

.color-picker.hidden {
  display: none;
}

.color-picker-window {
  width: var(--popup-window-width);
  padding: var(--popup-pad-y);
  background: var(--bg-panel);
  border: 1px solid var(--border-strong);
  border-radius: var(--popup-radius);
  box-shadow: var(--shadow-md);
  font-size: var(--popup-font-sm);
  line-height: var(--line-height);
}

.color-picker-header {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(var(--popup-font-base) + var(--popup-pad-y));
  margin-bottom: var(--popup-pad-y);
  padding-top: calc(var(--popup-pad-y) * 0.5);
  cursor: grab;
  user-select: none;
}

.color-picker-header:active {
  cursor: grabbing;
}

.color-picker-window-controls {
  position: absolute;
  left: 0;
  top: 50%;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transform: translateY(-50%);
}

.color-picker-control {
  width: 10px;
  height: 10px;
  border: none;
  border-radius: 50%;
  padding: 0;
  display: inline-block;
}

.color-picker-control.close {
  background: #ff5f57;
  cursor: pointer;
}

.color-picker-control.minimize {
  background: #febc2e;
}

.color-picker-control.maximize {
  background: #28c840;
}

.color-picker-title {
  color: var(--text-secondary);
  font-size: inherit;
  font-weight: 600;
  pointer-events: none;
}

.color-picker-modes {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 4px;
  margin-bottom: var(--space-sm);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--border-default);
}

.color-picker-mode {
  width: var(--popup-control);
  height: var(--popup-control);
  padding: calc(var(--popup-pad-y) * 0.45);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--text-primary);
  cursor: pointer;
}

.color-picker-mode svg {
  width: 100%;
  height: 100%;
  display: block;
}

.color-picker-mode:hover {
  background: var(--bg-control-hover);
}

.color-picker-mode.active {
  background: var(--accent-soft);
  border-color: var(--border-strong);
}

.color-picker-body {
  display: flex;
  flex-direction: column;
  gap: var(--popup-pad-y);
  min-height: calc(var(--popup-wheel-size) + var(--popup-control));
}

.color-picker-panel {
  display: none;
  flex-direction: column;
  gap: var(--space-sm);
}

.color-picker-panel.is-active {
  display: flex;
}

.color-picker-wheel-wrap,
.color-picker-spectrum-wrap {
  position: relative;
  width: var(--popup-wheel-size);
  height: var(--popup-wheel-size);
  margin: 0 auto;
}

.color-picker-wheel,
.color-picker-spectrum {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: calc(var(--popup-pad-y) * 0.9);
  cursor: crosshair;
  image-rendering: auto;
}

.color-picker-wheel {
  border-radius: 50%;
}

.color-picker-wheel-handle {
  position: absolute;
  width: 12px;
  height: 12px;
  margin: -6px 0 0 -6px;
  border: 2px solid #ffffff;
  border-radius: 50%;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.45);
  pointer-events: none;
}

.color-picker-slider {
  width: 100%;
  margin: 0;
  accent-color: var(--accent);
}

.color-picker-value-slider {
  background:
    linear-gradient(to right, #000000, hsl(0, 0%, 100%));
  height: 14px;
  border-radius: 999px;
}

.color-picker-slider-row {
  display: grid;
  grid-template-columns: 1.2em minmax(0, 1fr);
  gap: var(--popup-pad-y);
  align-items: center;
  color: var(--text-secondary);
  font-size: inherit;
}

.color-picker-slider-row input {
  width: 100%;
  margin: 0;
  accent-color: var(--accent);
}

.color-picker-palette-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: calc(var(--popup-pad-y) * 0.75);
  max-height: var(--popup-wheel-size);
  overflow: auto;
}

.color-picker-grid-swatch {
  width: 100%;
  aspect-ratio: 1;
  padding: 0;
  border: 1px solid var(--border-default);
  border-radius: 4px;
  cursor: pointer;
}

.color-picker-grid-swatch:hover {
  border-color: var(--border-strong);
}

.color-picker-crayons {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
  padding: 2px 0;
}

.color-picker-crayon {
  width: 100%;
  height: 54px;
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
  position: relative;
}

.color-picker-crayon::before {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 18px;
  height: 42px;
  border-radius: 3px 3px 2px 2px;
  background: var(--crayon-color);
  transform: translateX(-50%);
  box-shadow: inset 0 -8px 0 rgba(0, 0, 0, 0.12);
}

.color-picker-crayon::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 38px;
  width: 0;
  height: 0;
  border-left: 9px solid transparent;
  border-right: 9px solid transparent;
  border-bottom: 10px solid var(--crayon-color);
  transform: translateX(-50%);
}

.color-picker-label {
  color: var(--text-secondary);
  font-size: inherit;
}

.color-picker-opacity-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--popup-pad-y);
  align-items: center;
}

.color-picker-alpha-text {
  min-width: 3.5em;
  color: var(--text-secondary);
  font-size: inherit;
  text-align: right;
}

.color-picker-footer {
  display: grid;
  grid-template-columns: auto auto minmax(0, 1fr);
  gap: var(--popup-pad-y);
  align-items: center;
  margin-top: var(--popup-pad-x);
}

.color-picker-preview {
  width: var(--popup-control);
  height: var(--popup-control);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-strong);
  background:
    linear-gradient(45deg, #808080 25%, transparent 25%) 0 0 / 10px 10px,
    linear-gradient(-45deg, #808080 25%, transparent 25%) 0 0 / 10px 10px,
    linear-gradient(45deg, transparent 75%, #808080 75%) 0 0 / 10px 10px,
    linear-gradient(-45deg, transparent 75%, #808080 75%) 0 0 / 10px 10px,
    #ffffff;
}

.color-picker-eyedropper {
  width: var(--popup-control);
  height: var(--popup-control);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  background:
    var(--bg-control)
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none'%3E%3Cpath d='M3.5 12.5L11 5l1.5 1.5L5 14H3.5v-1.5z' stroke='%23ebebeb' stroke-width='1.2' stroke-linejoin='round'/%3E%3Cpath d='M9.5 3.5l1 1' stroke='%23ebebeb' stroke-width='1.2' stroke-linecap='round'/%3E%3C/svg%3E")
    center / 16px 16px no-repeat;
  cursor: pointer;
}

.color-picker-eyedropper.hidden {
  display: none;
}

.color-picker-eyedropper:hover {
  background-color: var(--bg-control-hover);
}

.color-picker-swatches {
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  gap: 4px;
}

.color-picker-swatch {
  width: 100%;
  aspect-ratio: 1;
  padding: 0;
  border: 1px solid var(--border-default);
  border-radius: 4px;
  cursor: pointer;
}

.color-picker-swatch.is-empty {
  background: var(--bg-control);
}

.color-picker-swatch:hover {
  border-color: var(--border-strong);
}

.canvas-context-menu {
  position: fixed;
  z-index: 300;
  min-width: 190px;
  padding: var(--space-xs);
  background: var(--bg-control);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
}

.canvas-context-menu.hidden {
  display: none;
}

.canvas-context-menu button {
  width: 100%;
  min-height: 32px;
  padding: var(--space-xs) var(--space-sm);
  border: 0;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  background: transparent;
  font-size: var(--font-base);
  text-align: left;
}

.canvas-context-menu button:hover:not(:disabled) {
  background: var(--bg-control-hover);
}

.canvas-context-menu button:disabled {
  color: var(--text-muted);
  cursor: default;
}

.canvas-context-menu-shortcut {
  color: var(--text-muted);
  font-size: var(--font-xs);
}

.card.image-card {
  background-color: var(--card-bg);
  background-position: center;
  background-repeat: no-repeat;
  background-size: contain;
}

.card.pdf-card {
  background-color: var(--card-bg);
  background-position: center;
  background-repeat: no-repeat;
  background-size: contain;
  overflow: hidden;
  cursor: pointer;
}

.card-pdf-label {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: calc(var(--space-xs) * 0.75) var(--space-sm);
  background: rgba(20, 20, 20, 0.62);
  color: #f5f5f5;
  font-size: var(--font-xs);
  line-height: 1.35;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  pointer-events: none;
}

body.light-theme .card-pdf-label {
  background: rgba(255, 255, 255, 0.88);
  color: #1a1a1a;
}

.card-pdf-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  color: var(--text-muted);
  font-size: var(--font-sm);
}

.card-content.card-markdown-content {
  display: block;
  min-height: 0;
  overflow: auto;
  white-space: normal;
  word-break: normal;
  line-height: 1.5;
}

.card-markdown-content.card-content-lines .card-markdown-line {
  line-height: var(--card-text-line-height);
}

.card-markdown-content.card-content-lines .card-markdown-line :is(h1, h2, h3, h4, h5, h6) {
  font-size: 1em;
  margin: 0;
  line-height: inherit;
}

.card-markdown-content.card-content-lines .card-markdown-line p {
  margin: 0;
}

.card-markdown-content.card-content-lines .card-markdown-line :is(ul, ol) {
  margin: 0;
}

.card-markdown-content :is(h1, h2, h3, h4, h5, h6) {
  margin: 0.6em 0 0.35em;
  line-height: 1.25;
}

.card-markdown-content :is(h1, h2, h3, h4, h5, h6):first-child {
  margin-top: 0;
}

.card-markdown-content p {
  margin: 0.45em 0;
}

.card-markdown-content :is(ul, ol) {
  margin: 0.45em 0;
  padding-left: 1.4em;
}

.card-markdown-content li:has(> input[type="checkbox"]) {
  list-style: none;
  margin-left: -1.4em;
  padding-left: 0;
}

.card-markdown-content input[type="checkbox"] {
  pointer-events: auto;
  margin: 0 0.35em 0 0;
  vertical-align: middle;
  cursor: pointer;
}

.card-markdown-content blockquote {
  margin: 0.5em 0;
  padding-left: 0.8em;
  border-left: 3px solid var(--border);
  color: var(--text-muted);
}

.card-markdown-content pre {
  margin: 0.5em 0;
  padding: 0.6em 0.75em;
  overflow: auto;
  border-radius: 6px;
  background: rgba(0, 0, 0, 0.06);
  font-size: 0.92em;
  white-space: pre-wrap;
  word-break: break-word;
  text-align: left;
  max-width: 100%;
}

.card-markdown-content pre code {
  display: block;
  white-space: inherit;
  word-break: inherit;
  background: transparent;
  padding: 0;
  border-radius: 0;
}

.card-markdown-content code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.92em;
}

.card-markdown-content :not(pre) > code {
  padding: 0.1em 0.35em;
  border-radius: 4px;
  background: rgba(0, 0, 0, 0.06);
}

.card-markdown-content a {
  color: #2563eb;
  text-decoration: underline;
  text-underline-offset: 0.16em;
}

.card-external-link {
  color: #2563eb;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.16em;
  cursor: pointer;
  overflow-wrap: anywhere;
  white-space: normal;
}

.card-content-link {
  color: #2563eb;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.16em;
  cursor: pointer;
  overflow-wrap: anywhere;
}