/* Online Ruler Overlay Styles */
.online-ruler-overlay {
  position: fixed;
  z-index: 1000000;
  cursor: move;
  user-select: none;
  display: flex;
  border-radius: 6px;
  transform-origin: 0 0;
  will-change: transform, left, top;
}

.online-ruler-overlay.or-horizontal {
  flex-direction: column;
  min-width: 320px;
  height: 95px;
}

.online-ruler-overlay.or-vertical {
  flex-direction: row;
  min-height: 320px;
  width: 200px;
}

.online-ruler-overlay .ruler-body {
  position: relative;
  overflow: visible;
  flex-shrink: 0;
  border-radius: inherit;
}

.online-ruler-overlay.or-horizontal .ruler-body {
  width: 100%;
  height: 60px;
  border-radius: 6px 6px 0 0;
}

.online-ruler-overlay.or-vertical .ruler-body {
  width: 60px;
  height: 100%;
  border-radius: 6px 0 0 6px;
}

.online-ruler-overlay .ruler-svg {
  width: 100%;
  height: 100%;
  display: block;
  position: absolute;
  top: 0;
  left: 0;
  pointer-events: none;
  border-radius: inherit;
}

.online-ruler-overlay .resize-handle {
  position: absolute;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.1);
  z-index: 10;
  opacity: 0;
  transition: opacity 0.2s;
}

.online-ruler-overlay.or-horizontal .resize-handle {
  width: 16px;
  height: 60px;
  right: 0;
  top: 0;
  cursor: ew-resize;
  border-left: 1px solid rgba(0,0,0,0.2);
}

.online-ruler-overlay.or-vertical .resize-handle {
  width: 60px;
  height: 16px;
  bottom: 0;
  left: 0;
  cursor: ns-resize;
  border-top: 1px solid rgba(0,0,0,0.2);
}

.online-ruler-overlay .ruler-body:hover .resize-handle {
  opacity: 1;
}

.online-ruler-overlay .resize-handle .resize-icon {
  pointer-events: none;
}

.online-ruler-overlay.or-horizontal .resize-icon {
  width: 4px;
  height: 25px;
  border-left: 2px solid rgba(0,0,0,0.6);
  border-right: 2px solid rgba(0,0,0,0.6);
}

.online-ruler-overlay.or-vertical .resize-icon {
  width: 25px;
  height: 4px;
  border-top: 2px solid rgba(0,0,0,0.6);
  border-bottom: 2px solid rgba(0,0,0,0.6);
}

.online-ruler-overlay .rotate-handle {
  position: absolute;
  width: 24px;
  height: 24px;
  background: #fff;
  border: 2px solid #333;
  border-radius: 50%;
  cursor: crosshair;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.2s;
}

.online-ruler-overlay.or-horizontal .rotate-handle {
  right: -35px;
  top: 30px;
}

.online-ruler-overlay.or-vertical .rotate-handle {
  bottom: -35px;
  left: 30px;
}

.online-ruler-overlay .ruler-body:hover .rotate-handle,
.online-ruler-overlay .rotate-handle.active {
  opacity: 0.8;
}

.online-ruler-overlay .rotate-handle::after {
  content: '↻';
  font-size: 14px;
  color: #333;
  font-weight: bold;
}

.online-ruler-overlay .angle-badge {
  position: absolute;
  top: -40px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0,0,0,0.7);
  color: #fff;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 12px;
  pointer-events: none;
  display: none;
  white-space: nowrap;
  z-index: 100;
}

.online-ruler-overlay .ruler-toolbar {
  background: #333;
  display: flex;
  cursor: default;
  box-sizing: border-box;
  color: white;
  overflow: visible;
}

.online-ruler-overlay.or-horizontal .ruler-toolbar {
  width: 100%;
  height: 35px;
  flex-direction: row;
  border-radius: 0 0 6px 6px;
  padding: 0 10px;
  justify-content: space-between;
  align-items: center;
}

.online-ruler-overlay.or-vertical .ruler-toolbar {
  width: 140px;
  height: 100%;
  flex-direction: column;
  border-radius: 0 6px 6px 0;
  padding: 10px;
  gap: 10px;
}

.online-ruler-overlay .ruler-toolbar select,
.online-ruler-overlay .ruler-toolbar button {
  font-size: 11px;
  padding: 2px 5px;
  background: #444;
  color: white;
  border: none;
  outline: none;
  border-radius: 3px;
  cursor: pointer;
}

.online-ruler-overlay .angle-presets {
  display: flex;
  gap: 4px;
  border-left: 1px solid #555;
  padding-left: 8px;
  margin-left: 4px;
}

.online-ruler-overlay.or-vertical .angle-presets {
  border-left: none;
  padding-left: 0;
  margin-left: 0;
  flex-wrap: wrap;
  justify-content: center;
}

.online-ruler-overlay .color-selector {
  position: relative;
  width: 100px;
  height: 22px;
  cursor: pointer;
  font-size: 11px;
  user-select: none;
  border-radius: 3px;
  overflow: visible;
  z-index: 100;
}

.online-ruler-overlay.or-vertical .color-selector {
  width: 100%;
}

.online-ruler-overlay .color-trigger {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 3px;
  font-weight: bold;
  box-sizing: border-box;
  border: 1px solid rgba(0,0,0,0.2);
  color: #000;
}

.online-ruler-overlay .color-options-list {
  position: absolute;
  left: 0;
  width: 100%;
  display: none;
  flex-direction: column;
  border-radius: 3px;
  overflow: hidden;
  border: 1px solid #555;
}

.online-ruler-overlay.or-horizontal .color-options-list {
  bottom: 100%;
  margin-bottom: 4px;
}

.online-ruler-overlay.or-vertical .color-options-list {
  top: 100%;
  margin-top: 4px;
}

.online-ruler-overlay .color-opt {
  padding: 4px 8px;
  color: #000;
  font-weight: bold;
  text-align: center;
}

.online-ruler-overlay .color-opt:hover {
  filter: brightness(0.9);
}

.online-ruler-overlay .opacity-slider {
  cursor: pointer;
}

.online-ruler-overlay.or-horizontal .opacity-slider {
  width: 60px;
}

.online-ruler-overlay.or-vertical .opacity-slider {
  height: 60px;
  width: 20px;
  writing-mode: vertical-lr;
  direction: rtl;
}

.online-ruler-overlay .close-btn {
  background: none !important;
  border: none;
  color: #aaa !important;
  font-size: 14px;
}

.online-ruler-overlay.or-protractor {
  flex-direction: column;
  background: transparent;
  position: fixed;
}

.online-ruler-overlay.or-angle {
  background: transparent;
  position: fixed;
  display: block;
}

.online-ruler-overlay.or-angle .ruler-body {
  position: relative;
  overflow: visible;
  cursor: move;
}

.online-ruler-overlay.or-angle .ruler-svg {
  inset: 0;
  pointer-events: none;
}

.online-ruler-overlay.or-angle .angle-sector {
  stroke-width: 1;
}

.online-ruler-overlay.or-angle .angle-arm {
  stroke-width: 3;
  stroke-linecap: round;
  filter: drop-shadow(0 1px 1px rgba(0,0,0,0.2));
}

.online-ruler-overlay.or-angle .angle-vertex-ring {
  fill: transparent;
  stroke-width: 2;
  filter: drop-shadow(0 1px 1px rgba(0,0,0,0.18));
}

.online-ruler-overlay.or-angle .angle-center-dot {
  filter: drop-shadow(0 1px 1px rgba(0,0,0,0.22));
}

.online-ruler-overlay .angle-handle {
  position: absolute;
  width: 26px;
  height: 26px;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  border: 2px solid #0f766e;
  background: #ffffff;
  color: #0f766e;
  font-size: 10px;
  font-weight: 700;
  align-items: center;
  justify-content: center;
  cursor: grab;
  z-index: 25;
  box-shadow: 0 2px 7px rgba(0,0,0,0.18);
}

.online-ruler-overlay .angle-handle:active {
  cursor: grabbing;
}

.online-ruler-overlay .angle-handle-vertex {
  width: 30px;
  height: 30px;
  background: transparent;
  color: transparent;
  border-width: 2px;
  box-shadow: 0 0 0 2px rgba(255,255,255,0.65), 0 2px 7px rgba(0,0,0,0.18);
}

.online-ruler-overlay .angle-measure-label {
  position: absolute;
  transform: translate(-50%, -50%);
  min-width: 58px;
  padding: 5px 9px;
  border-radius: 16px;
  background: rgba(17, 24, 39, 0.82);
  color: #ffffff;
  font: 700 13px/1 sans-serif;
  text-align: center;
  pointer-events: none;
  z-index: 24;
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

.online-ruler-overlay.or-angle .ruler-toolbar {
  position: absolute;
  height: 28px;
  padding: 0;
  background: transparent;
  justify-content: flex-start;
  align-items: center;
  overflow: visible;
  gap: 6px;
  z-index: 30;
}

.online-ruler-overlay.or-angle .opacity-slider {
  width: 92px;
}

.online-ruler-overlay.or-angle .color-selector {
  width: 100px;
}

.online-ruler-overlay.or-angle .color-options-list {
  top: 100%;
  margin-top: 4px;
}

.online-ruler-overlay.or-protractor .ruler-body {
  border-radius: 0;
}

.online-ruler-overlay.or-protractor .ruler-toolbar {
  position: absolute;
  left: 32px;
  right: 32px;
  bottom: 15px;
  height: 26px;
  margin-top: 0;
  padding: 0;
  background: transparent;
  border-radius: 0;
  justify-content: space-between;
  align-items: center;
  pointer-events: none;
  overflow: visible;
}

.online-ruler-overlay.or-protractor .ruler-toolbar > div {
  pointer-events: auto;
}

.online-ruler-overlay.or-protractor .opacity-slider {
  width: 92px;
}

.online-ruler-overlay.or-protractor .color-options-list {
  bottom: 100%;
  margin-bottom: 4px;
}

.online-ruler-overlay.or-protractor .protractor-angle-presets {
  position: absolute;
  left: calc(50% + 24px);
  top: -28px;
  height: 124px;
  border-left: none;
  padding-left: 0;
  margin-left: 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
  z-index: 20;
}

.online-ruler-overlay.or-protractor .protractor-angle-presets::before {
  content: '';
  position: absolute;
  top: -2px;
  right: 100%;
  width: 14px;
  height: 28px;
}

.online-ruler-overlay.or-protractor .protractor-angle-presets::after {
  content: '';
  position: absolute;
  top: 0;
  left: 100%;
  width: 32px;
  height: 96px;
}

.online-ruler-overlay.or-protractor .ruler-body:hover .protractor-angle-presets,
.online-ruler-overlay.or-protractor .protractor-angle-presets:hover {
  opacity: 0.8;
  pointer-events: auto;
}

.online-ruler-overlay.or-protractor .protractor-angle-presets button {
  font-size: 11px;
  padding: 2px 5px;
  background: #444;
  color: white;
  border: none;
  outline: none;
  border-radius: 3px;
  cursor: pointer;
  top: 0px;
  position: relative;
  height: 24px;
}

.online-ruler-overlay .mode-toggle-btn {
  font-size: 14px !important;
  background: #555 !important;
  border: 1px solid #666 !important;
  width: 28px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 !important;
}

.online-ruler-overlay .mode-toggle-btn:hover {
  background: #666 !important;
}

.milestone-bubble {
  position: absolute;
  background: #fffde7;
  border: 1px solid #fff59d;
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 12px;
  z-index: 1000;
  color: #333;
  line-height: 1.4;
  animation: online-ruler-fadeIn 0.3s;
}

@keyframes online-ruler-fadeIn {
  from { opacity: 0; transform: translateY(5px); }
  to { opacity: 1; transform: translateY(0); }
}