/* Main Workspace */
.workspace {
  display: flex;
  flex: 1;
  min-height: 0;
  overflow: hidden;
  position: relative;
}

/* Drawing Toolbar (Left) */
.toolbar {
  background: var(--panel-bg);
  border-right: 1px solid var(--border-color);
  width: 48px;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 10px 0;
  gap: 8px;
  flex-shrink: 0;
  z-index: 10;
  overflow-x: hidden;
  overflow-y: auto;
  touch-action: pan-y;
}

.tool-btn {
  width: 34px;
  height: 34px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 6px;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s ease;
  position: relative;
}

.tool-btn:hover {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.05);
}

.tool-btn.active {
  color: var(--accent);
  background: var(--accent-alpha);
  border-color: var(--accent);
}

.tool-btn::after {
  content: attr(data-tooltip);
  position: absolute;
  left: 46px;
  background: #1e222d;
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 10.5px;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transform: translateX(5px);
  transition: all 0.15s ease;
  z-index: 20;
}

.tool-btn:hover::after {
  opacity: 1;
  transform: translateX(0);
}

/* Chart Area */
.chart-container {
  flex: 1;
  height: 100%;
  position: relative;
}

/* Scrollbar override */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 3px;
}