/* -- Filter Bar (website · Search & Navigation) ---------------------------
   Presents compact controls for narrowing a collection - selects, toggle chips and a "more filters" action on one scrollable row, with the count. */

@layer components {
  /* every box in the block measures border-box - the same on any page */
  :where(.mk-filter-bar, .mk-filter-bar *, .mk-filter-bar ::before, .mk-filter-bar ::after) {
    box-sizing: border-box;
  }

  .mk-filter-bar {
    width: 100%;
    & form {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      padding-block: 0.5rem;
      overflow-x: auto;
      overscroll-behavior-x: contain;
      scrollbar-width: thin;
    }
    & .select {
      width: auto;
      height: 2rem;
      padding-block: 0;
      font-size: 0.8125rem;
      border-radius: 999px;
      flex: none;
    }
    & .btn {
      flex: none;
      border-radius: 999px;
    }
  }
  .mk-filter-bar-chip {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    height: 2rem;
    padding-inline: 0.75rem;
    border: 1px solid var(--border);
    border-radius: 999px;
    font-size: 0.8125rem;
    font-weight: 500;
    cursor: pointer;
    white-space: nowrap;
    flex: none;
    & input {
      position: absolute;
      inset: 0;
      margin: 0;
      opacity: 0;
      cursor: pointer;
    }
    & svg {
      width: 0.875rem;
      height: 0.875rem;
    }
    &:has(:checked) {
      border-color: var(--foreground);
      background: var(--foreground);
      color: var(--background);
    }
    &:has(:focus-visible) {
      outline: 2px solid var(--ring);
      outline-offset: 2px;
    }
  }
  .mk-filter-bar-sep {
    flex: none;
    width: 1px;
    height: 1.25rem;
    background: var(--border);
  }
  .mk-filter-bar-count {
    flex: none;
    margin-inline-start: auto;
    padding-inline-start: 1rem;
    color: var(--muted-foreground);
    font-size: 0.8125rem;
    white-space: nowrap;
  }
  .mk-filter-bar[data-variant="sticky"] {
    position: sticky;
    top: 0;
    z-index: 10;
    border-block-end: 1px solid var(--border);
    background: color-mix(in oklch, var(--background) 85%, transparent);
    backdrop-filter: blur(10px);
  }

  /* -- Accessibility ------------------------------------------- */
  @media (forced-colors: active) {
    .mk-filter-bar-chip:has(:checked) {
      background: Highlight;
      color: HighlightText;
    }
  }
}