@monochrome-edge/ui/ui/molecules/tab.css

A modern, minimalist UI with Warm and Cold themes

/*
 * Tab Component
 * Tabbed navigation and content
 */

.tabs {
  width: 100%;
}

/* Tab List */
.tab-list {
  display: flex;
  align-items: center;
  gap: 0.125rem;
  border-bottom: 1px solid var(--theme-border);
  overflow-x: auto;
  scrollbar-width: thin;
}

.tab-list::-webkit-scrollbar {
  height: 4px;
}

.tab-list::-webkit-scrollbar-track {
  background: var(--theme-bg);
}

.tab-list::-webkit-scrollbar-thumb {
  background: var(--theme-border);
  border-radius: 2px;
}

/* Tab Item */
.tab-item {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--theme-text-secondary);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: transform var(--transition-speed), opacity var(--transition-speed), box-shadow var(--transition-speed);
  white-space: nowrap;
  position: relative;
}

.tab-item:hover {
  color: var(--theme-text-primary);
  background-color: rgba(0, 0, 0, var(--alpha-hover));
}

.tab-item.is-active {
  color: var(--theme-accent);
  border-bottom-color: var(--theme-accent);
}

.tab-item.is-disabled {
  opacity: var(--alpha-disabled);
  cursor: not-allowed;
  pointer-events: none;
}

/* Tab Icon */
.tab-item-icon {
  width: 1rem;
  height: 1rem;
}

/* Tab Badge */
.tab-item-badge {
  padding: 0.125rem 0.375rem;
  font-size: 0.625rem;
  font-weight: 600;
  line-height: 1;
  color: var(--theme-accent-contrast);
  background-color: var(--theme-accent);
  border-radius: 9999px;
}

/* Tab Panel */
.tab-panel {
  padding: 1.5rem 0;
  animation: tab-fade-in 0.3s ease-out;
}

@keyframes tab-fade-in {
  from {
    opacity: 0;
    transform: translateY(-0.5rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.tab-panel[hidden] {
  display: none;
}

/* Tab Variants */
.tab-list-pills {
  border-bottom: none;
  gap: 0.5rem;
  padding: 0.25rem;
  background-color: var(--theme-bg);
  border-radius: var(--border-radius);
}

.tab-list-pills .tab-item {
  border: none;
  border-radius: var(--border-radius);
}

.tab-list-pills .tab-item.is-active {
  background-color: var(--theme-surface);
  color: var(--theme-text-primary);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

/* Vertical Tabs */
.tabs-vertical {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 2rem;
}

.tabs-vertical .tab-list {
  flex-direction: column;
  align-items: stretch;
  border-bottom: none;
  border-right: 1px solid var(--theme-border);
  padding-right: 1rem;
}

.tabs-vertical .tab-item {
  justify-content: flex-start;
  border-bottom: none;
  border-left: 2px solid transparent;
  margin-left: -2px;
}

.tabs-vertical .tab-item.is-active {
  border-left-color: var(--theme-accent);
  background-color: rgba(0, 0, 0, var(--alpha-hover));
}

/* Segmented Control */
.segmented-control {
  display: inline-flex;
  padding: 0.25rem;
  background-color: var(--theme-bg);
  border: 1px solid var(--theme-border);
  border-radius: var(--border-radius);
}

.segmented-control-item {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--theme-text-secondary);
  background: none;
  border: none;
  border-radius: calc(var(--border-radius) - 0.25rem);
  cursor: pointer;
  transition: transform var(--transition-speed), opacity var(--transition-speed), box-shadow var(--transition-speed);
}

.segmented-control-item:hover {
  color: var(--theme-text-primary);
}

.segmented-control-item.is-active {
  color: var(--theme-text-primary);
  background-color: var(--theme-surface);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}