.canvas-container {
  margin: 10px 0;
  border: 1px solid #ddd;
  border-radius: 4px;
  overflow: hidden;
}

.annotation-toolbar {
  display: flex;
  align-items: center;
  padding: 10px;
  background: #f5f5f5;
  border-bottom: 1px solid #ddd;
  gap: 10px;
}

.tool-group,
.color-group,
.size-group,
.action-group {
  display: flex;
  align-items: center;
  gap: 5px;
}

.tool-btn,
.action-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: 1px solid #ddd;
  border-radius: 4px;
  background: white;
  cursor: pointer;
  padding: 4px;
}

.tool-btn:hover,
.action-btn:hover {
  background: #f0f0f0;
}

.tool-btn.active {
  background: #e3f2fd;
  border-color: #2196f3;
}

.tool-btn svg,
.action-btn svg {
  width: 20px;
  height: 20px;
}

#color-picker {
  width: 32px;
  height: 32px;
  padding: 0;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

#size-slider {
  width: 100px;
}

/* Add separator between groups */
.tool-group:not(:last-child)::after {
  content: '';
  display: block;
  width: 1px;
  height: 24px;
  background: #ddd;
  margin: 0 5px;
}

/* Style the done button differently */
#done-btn {
  background: #4caf50;
  border-color: #43a047;
}

#done-btn svg {
  fill: white;
}

#done-btn:hover {
  background: #43a047;
}

body {
  margin: 0;
  padding: 0;
  height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  background: #F4F5F7;
  overflow: hidden;
}

#annotation-container {
  display: flex;
  flex-direction: column;
  height: 100vh;
  width: 100vw;
}

#toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: white;
  box-shadow: 0 1px 3px rgba(9, 30, 66, 0.13);
  z-index: 1000;
}

.tool-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid #DFE1E6;
  border-radius: 4px;
  background: white;
  cursor: pointer;
  transition: all 0.2s;
  padding: 0;
}

.tool-btn:hover {
  background: #EBECF0;
}

.tool-btn.active {
  background: #DEEBFF;
  border-color: #0052CC;
}

.tool-btn svg {
  width: 20px;
  height: 20px;
  color: #172B4D;
}

.tool-options {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 8px;
  border-left: 1px solid #DFE1E6;
  margin-left: 8px;
}

#color-picker {
  width: 32px;
  height: 32px;
  padding: 0;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

#stroke-width {
  width: 100px;
}

.spacer {
  flex-grow: 1;
}

.action-btn {
  padding: 8px 16px;
  border: 1px solid;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

#done-btn {
  background: #0052CC;
  color: white;
  border-color: #0052CC;
}

#done-btn:hover {
  background: #0747A6;
}

#cancel-btn {
  background: white;
  color: #172B4D;
  border-color: #DFE1E6;
  margin-left: 8px;
}

#cancel-btn:hover {
  background: #EBECF0;
}

#canvas-container {
  flex-grow: 1;
  position: relative;
  overflow: auto;
  background: #F4F5F7;
}

#canvas {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  cursor: crosshair;
  box-shadow: 0 4px 8px rgba(9, 30, 66, 0.25);
}