/* =========================================================================
   COMBOBOX - Shared filterable dropdown styles
   Used by all three GRAIPH interfaces.
   Depends on graiph-tokens.css for design tokens.
   ========================================================================= */

.combobox-container {
  position: relative;
  width: 100%;
}

.combobox-container.disabled {
  opacity: 0.5;
  pointer-events: none;
}

.combobox-input {
  width: 100%;
  padding: 8px 36px 8px 12px;
  border: 1px solid var(--graiph-border);
  border-radius: var(--graiph-radius-md);
  background: var(--graiph-bg-primary);
  color: var(--graiph-text-primary);
  font-family: var(--graiph-font);
  font-size: var(--graiph-font-md);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  cursor: text;
  box-sizing: border-box;
}

.combobox-input:focus {
  outline: none;
  border-color: var(--graiph-accent);
  box-shadow: 0 0 0 3px var(--graiph-accent-muted);
}

.combobox-input::placeholder {
  color: var(--graiph-text-muted);
  font-weight: 400;
}

.combobox-input:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.combobox-arrow {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--graiph-text-muted);
  pointer-events: none;
  transition: transform 0.2s ease;
  width: 16px;
  height: 16px;
}

.combobox-container.open .combobox-arrow {
  transform: translateY(-50%) rotate(180deg);
}

.combobox-dropdown {
  position: absolute;
  top: calc(100% - 2px);
  left: 0;
  right: 0;
  background: var(--graiph-bg-elevated);
  border: 2px solid var(--graiph-border);
  border-radius: 0 0 var(--graiph-radius-md) var(--graiph-radius-md);
  max-height: 25rem;
  overflow-y: auto;
  z-index: 99999;
  display: none;
  box-shadow: var(--graiph-shadow-lg);
}

.combobox-container.open .combobox-dropdown {
  display: block;
}

.combobox-option {
  padding: 0.5rem 1rem;
  cursor: pointer;
  border-bottom: 1px solid var(--graiph-bg-tertiary);
  transition: background-color 0.15s ease;
  font-size: var(--graiph-font-sm);
  line-height: 1.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--graiph-text-primary);
}

.combobox-option:hover,
.combobox-option.highlighted {
  background-color: var(--graiph-bg-hover);
}

.combobox-option:last-child {
  border-bottom: none;
}

.combobox-option.selected {
  background-color: var(--graiph-accent);
  color: var(--graiph-accent-ink);
}

/* Expandable group row (e.g. Training Datasets) + its inline children */
.combobox-option.combobox-group {
  gap: 0.4rem;
  font-weight: 600;
}

.combobox-group-chevron {
  display: inline-flex;
  justify-content: center;
  width: 0.9rem;
  flex: 0 0 auto;
  color: var(--graiph-text-muted);
  transition: transform 0.15s ease;
}

.combobox-option.combobox-child-option {
  padding-left: 2.25rem;
  font-size: var(--graiph-font-sm);
  color: var(--graiph-text-secondary, var(--graiph-text-muted));
  background-color: var(--graiph-bg-secondary, transparent);
}

.combobox-no-results {
  padding: 0.75rem 1rem;
  color: var(--graiph-text-muted);
  font-style: italic;
  text-align: center;
  font-size: var(--graiph-font-sm);
}

/* =========================================================================
   COMPACT VARIANT - used in header data selection zone
   ========================================================================= */

.gh-center .combobox-container {
  min-width: 140px;
  max-width: 200px;
}

.gh-center .combobox-input {
  font-size: var(--graiph-font-sm);
  padding: 5px 30px 5px 10px;
  height: 32px;
}

.gh-center .combobox-arrow {
  right: 8px;
  width: 14px;
  height: 14px;
}