/* TabBar Styles - VS Code inspired */
.tab-bar {
  display: flex;
  align-items: center;
  background-color: var(--vscode-editorGroupHeader-tabsBackground, #252526);
  border-bottom: 1px solid var(--vscode-editorGroupHeader-tabsBorder, #1e1e1e);
  height: 35px;
  overflow: hidden;
  flex-shrink: 0;
  position: relative;
}

.tab-bar-tabs {
  display: flex;
  align-items: center;
  height: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  flex: 1;
  scroll-behavior: smooth;
}

/* Hide scrollbar but allow scrolling */
.tab-bar-tabs::-webkit-scrollbar {
  height: 0;
  display: none;
}

/* Navigation arrows */
.tab-scroll-button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 100%;
  background-color: var(--vscode-editorGroupHeader-tabsBackground, #252526);
  border: none;
  color: var(--vscode-icon-foreground, #c5c5c5);
  cursor: pointer;
  flex-shrink: 0;
  z-index: 1;
}

.tab-scroll-button:hover {
  background-color: var(--vscode-toolbar-hoverBackground, rgba(90, 93, 94, 0.31));
}

.tab-scroll-left {
  border-right: 1px solid var(--vscode-tab-border, #252526);
}

.tab-scroll-right {
  border-left: 1px solid var(--vscode-tab-border, #252526);
}

.tab {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0 10px;
  height: 100%;
  min-width: 100px;
  max-width: 160px;
  cursor: pointer;
  background-color: var(--vscode-tab-inactiveBackground, #2d2d2d);
  border-right: 1px solid var(--vscode-tab-border, #252526);
  color: var(--vscode-tab-inactiveForeground, #969696);
  font-size: 13px;
  user-select: none;
  position: relative;
  flex-shrink: 0;
}

.tab:hover {
  background-color: var(--vscode-tab-hoverBackground, #2a2d2e);
}

.tab.active {
  background-color: var(--vscode-tab-activeBackground, #1e1e1e);
  color: var(--vscode-tab-activeForeground, #fff);
}

.tab.active::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background-color: var(--vscode-tab-activeBorderTop, #0078d4);
}

.tab.transient .tab-title {
  font-style: italic;
}

.tab-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  opacity: 0.8;
}

.tab.active .tab-icon {
  opacity: 1;
}

.tab-title {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tab-title.italic {
  font-style: italic;
}

.tab-actions {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-left: auto;
  flex-shrink: 0;
}

.tab-dirty-indicator {
  color: var(--vscode-editorWarning-foreground, #e2c08d);
  font-size: 10px;
  line-height: 1;
}

.tab-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border: none;
  background: transparent;
  color: var(--vscode-icon-foreground, #c5c5c5);
  cursor: pointer;
  opacity: 0;
  border-radius: 3px;
  flex-shrink: 0;
  padding: 0;
}

.tab:hover .tab-close {
  opacity: 0.7;
}

.tab.active .tab-close {
  opacity: 0.7;
}

.tab-close:hover {
  opacity: 1 !important;
  background-color: var(--vscode-toolbar-hoverBackground, rgba(90, 93, 94, 0.31));
}

.tab-close:active {
  background-color: var(--vscode-toolbar-activeBackground, rgba(99, 102, 103, 0.31));
}

/* When tab is dirty, show close button on hover, swap with dirty indicator */
.tab.dirty .tab-dirty-indicator {
  display: block;
}

.tab.dirty .tab-close {
  display: none;
}

.tab.dirty:hover .tab-close {
  display: flex;
  opacity: 0.7;
}

.tab.dirty:hover .tab-dirty-indicator {
  display: none;
}

/* Focus styles for keyboard navigation */
.tab:focus-visible {
  outline: 1px solid var(--vscode-focusBorder, #007fd4);
  outline-offset: -1px;
}

/* Empty state when no tabs */
.tab-bar-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  width: 100%;
  color: var(--vscode-descriptionForeground, #999);
  font-size: 12px;
}