/* Tool Palette Styles */

.tool-palette-container {
  background: var(--bg-secondary, #161b22);
  border-left: 1px solid var(--border-primary, #30363d);
  height: 100%;
  display: flex;
  flex-direction: column;
  width: 280px;
  flex-shrink: 0;
}

.tool-palette-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md, 1rem);
  border-bottom: 1px solid var(--border-primary, #30363d);
  background: var(--bg-tertiary, #1c2128);
}

.tool-palette-header h3 {
  margin: 0;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary, #e6edf3);
}

.palette-toggle {
  background: transparent;
  border: none;
  color: var(--text-secondary, #8b949e);
  cursor: pointer;
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm, 4px);
  transition: all var(--transition-fast, 0.1s);
  font-size: 1.125rem;
  line-height: 1;
}

.palette-toggle:hover {
  background: var(--bg-hover, #1f2329);
  color: var(--text-primary, #e6edf3);
}

.tool-palette-content {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  max-height: calc(100vh - 60px);
  padding-bottom: var(--spacing-md, 1rem);
}

.tool-category-section {
  border-bottom: 1px solid var(--border-primary, #30363d);
}

.tool-category-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm, 0.5rem);
  padding: var(--spacing-sm, 0.5rem) var(--spacing-md, 1rem) var(--spacing-sm, 0.5rem) var(--spacing-lg, 1.5rem);
  background: var(--bg-tertiary, #1c2128);
  cursor: pointer;
  transition: all var(--transition-fast, 0.1s);
  user-select: none;
}

.tool-category-header:hover {
  background: var(--bg-hover, #1f2329);
}

.tool-category-header .category-icon {
  font-size: 1rem;
}

.tool-category-header .category-name {
  flex: 1;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-primary, #e6edf3);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.tool-category-header .category-toggle {
  background: var(--bg-hover, #1f2329);
  border: 1px solid var(--border-primary, #30363d);
  border-radius: var(--radius-sm, 4px);
  color: var(--text-secondary, #8b949e);
  cursor: pointer;
  padding: 0.5rem 0.75rem;
  font-size: 1rem;
  min-width: 32px;
  min-height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base, 0.2s);
  margin-left: auto;
  flex-shrink: 0;
}

.tool-category-header .category-toggle:hover {
  background: var(--bg-elevated, #21262d);
  border-color: var(--accent-primary, #58a6ff);
  color: var(--text-primary, #e6edf3);
}

.tool-category-section.collapsed .category-toggle {
  transform: rotate(-90deg);
}

.tool-category-section.collapsed .tool-category-tools {
  display: none;
}

.tool-category-tools {
  display: flex;
  flex-direction: column;
  padding: var(--spacing-xs, 0.25rem) 0;
  gap: 2px;
}

.tool-palette-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm, 0.5rem);
  padding: var(--spacing-sm, 0.5rem) var(--spacing-md, 1rem);
  background: rgba(255,255,255,0.02);
  border: 1px solid transparent;
  color: var(--text-primary, #e6edf3);
  cursor: pointer;
  transition: all var(--transition-fast, 0.1s);
  text-align: left;
  width: 100%;
  font-size: 0.875rem;
  border-radius: var(--radius-md, 6px);
}

.tool-palette-item:hover {
  background: var(--bg-hover, #1f2329);
  border-color: var(--border-primary, #30363d);
  transform: translateX(2px);
}

.tool-palette-item.active {
  background: rgba(88, 166, 255, 0.15);
  border-left: 3px solid var(--accent-primary, #58a6ff);
  color: var(--accent-primary, #58a6ff);
  font-weight: 500;
}

.tool-palette-item .tool-icon {
  font-size: 1.125rem;
  flex-shrink: 0;
  width: 24px;
  text-align: center;
}

.tool-palette-item .tool-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}