@llselect/core/dist/themes/bootstrap-4.css

Low-level select: a minimal, flexible, framework-agnostic replacement for the native HTML select element.

/* llselect - Bootstrap 4 theme. BS4 has no CSS custom properties (Sass-only
   theming), so all values are hard-coded to match BS4 defaults. */

.llselect-root {
  position: relative;
  display: inline-block;
  min-width: 14rem;
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, sans-serif;
  font-size: 1rem;
  color: #495057;
  line-height: 1.5;
  /* BS4's reboot hardcodes body { text-align: left } (BS4 ships no RTL
     support), which would pin the widget's text left inside dir="rtl".
     `start` re-follows the widget's own direction; identical in LTR.
     BS3 sets nothing and BS5 leaves --bs-body-text-align undefined, so
     only this theme needs it. */
  text-align: start;
}

/* --- trigger (matches BS4 .form-control look) ---------------- */

.llselect-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.375rem 0.75rem;
  border: 1px solid #ced4da;
  border-radius: 0.25rem;
  background-color: #fff;
  color: #495057;
  cursor: pointer;
  user-select: none;
  transition:
    border-color 0.15s ease-in-out,
    box-shadow 0.15s ease-in-out;
}

.llselect-trigger:focus,
.llselect-trigger:focus-visible,
.llselect-trigger[data-state='open'] {
  outline: 0;
  border-color: #80bdff;
  box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

.llselect-trigger-content {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.llselect-trigger[data-empty='true'] .llselect-trigger-content {
  color: #6c757d;
}

.llselect-trigger-arrow {
  display: inline-flex;
  align-items: center;
  color: #6c757d;
  transition: transform 0.15s ease-in-out;
}

.llselect-trigger-arrow:empty { display: none; }

.llselect-trigger[data-state='open'] .llselect-trigger-arrow {
  transform: rotate(180deg);
}

/* --- popup (matches BS4 .dropdown-menu look) ----------------- */

.llselect-popup {
  background-color: #fff;
  border: 1px solid rgba(0, 0, 0, 0.15);
  border-radius: 0.25rem;
  box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.175);
  color: #212529;
  z-index: 1000;
  padding: 0.5rem 0;
}

/* --- items (matches BS4 .dropdown-item look) ----------------- */

.llselect-item {
  padding: 0.25rem 1.5rem;
  cursor: pointer;
  color: #212529;
  background-color: transparent;
}

.llselect-item:hover {
  background-color: #e9ecef;
  color: #16181b;
}

.llselect-item-focused {
  background-color: #007bff;
  color: #fff;
}

.llselect-item-focused:hover {
  background-color: #0069d9;
  color: #fff;
}

.llselect-item[aria-selected='true'] {
  font-weight: 600;
  color: #007bff;
}

.llselect-item-focused[aria-selected='true'] {
  color: #fff;
}

/* --- choose-all row (multi, opt-in) ----------------------------- */
/* The default row content is just the counting text (its numbers carry the
   tri-state); data-chosen-state is the hook if a theme wants to draw its own
   indicator, createChooseAllRowContentElFn the way to add a real one. The
   row also carries the plain item class, so hover / focused styling comes
   from there. */

.llselect-choose-all-row {
  border-bottom: 1px solid rgba(0, 0, 0, 0.12);
}

/* --- groups (Phase 10, matches .dropdown-header look) --------- */
/* Static header by default; rect-based scroll math (keyboard.ts) allows a
   theme to make it `position: sticky; top: 0`. */

.llselect-group-label {
  padding: 0.5rem 1.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: #6c757d;
  background-color: #f8f9fa;
}

.llselect-group[data-disabled='true'] .llselect-group-label {
  opacity: 0.55;
  cursor: not-allowed;
}

/* --- filter input (Phase 8) ------------------------------------ */

.llselect-filter-input {
  flex: none;
  margin: 0.5rem;
  padding: 0.375rem 0.75rem;
  border: 1px solid #ced4da;
  border-radius: 0.25rem;
  font: inherit;
  outline: none;
  background-color: #fff;
  color: #495057;
}

.llselect-filter-input:focus {
  border-color: #80bdff;
  box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

/* --- no-results message ----------------------------------------- */

.llselect-popup-list-no-results {
  padding: 0.25rem 1.5rem;
  color: #6c757d;
}

/* --- disabled (Phase 9) ---------------------------------------- */
/* aria-disabled + data-disabled, never native `disabled`. Keep pointer
   events alive (no `pointer-events: none`) so hover/focus tooltips work. */

.llselect-trigger[data-disabled='true'] {
  opacity: 0.55;
  cursor: not-allowed;
}
/* Embedded buttons are inert while the control is disabled: show not-allowed,
   not the pointer cursor their own rule sets. */
.llselect-trigger[data-disabled='true'] .llselect-tag-remove-button,
.llselect-trigger[data-disabled='true'] .llselect-trigger-clear-button {
  cursor: not-allowed;
}

.llselect-item-disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.llselect-item-disabled:hover {
  background: none;
}

/* --- tags (triggerDisplay: 'tags') --------------------------- */
/* :has lets the trigger content wrap for chips (nowrap+ellipsis otherwise). */

.llselect-trigger-content:has(.llselect-tags) {
  white-space: normal;
  overflow: visible;
}

.llselect-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
}

.llselect-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  /* Logical: mirrors under dir="rtl" (text side start, x-button side end). */
  padding-block: 0.1rem;
  padding-inline: 0.5rem 0.2rem;
  /* BS4 ships no tag/chip component; solid .badge-primary read too heavy
     inside a form control. These are BS4's own .alert-primary pair. */
  background-color: #cce5ff;
  color: #004085;
  border-radius: 0.2rem;
  font-size: 0.85rem;
  line-height: 1.5;
}

.llselect-tag-remove-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.15em;
  height: 1.15em;
  padding: 0;
  border: none;
  border-radius: 0.2rem;
  background: transparent;
  color: inherit;
  opacity: 0.7;
  cursor: pointer;
  font: inherit;
  line-height: 1;
}

.llselect-tag-remove-button:empty::before { content: '\00d7'; font-size: 1.15em; }

.llselect-tag-remove-button:hover { opacity: 1; }

/* A disabled item's chip: greyed, its x inert (the JS click guard is the real block). */
.llselect-tag-disabled {
  opacity: 0.45;
  cursor: not-allowed;
}
.llselect-tag-disabled .llselect-tag-remove-button {
  cursor: not-allowed;
}

/* --- clear button (clearable) -------------------------------- */
/* :empty::before draws the x only when createTriggerClearButtonContentElFn gave no icon. */

.llselect-trigger-clear-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  width: 1.2em;
  height: 1.2em;
  padding: 0;
  border: none;
  border-radius: 0.2rem;
  background: transparent;
  color: #6c757d;
  cursor: pointer;
  font: inherit;
  line-height: 1;
}

.llselect-trigger-clear-button:empty::before { content: '\00d7'; font-size: 1.2em; }

.llselect-trigger-clear-button:hover { color: #212529; background-color: #f8f9fa; }

.llselect-trigger[data-empty='true'] .llselect-trigger-clear-button { display: none; }