/* ── Checkbox component ───────────────────────────────────────── */

@layer components {
  .checkbox {
    appearance: none;
    width: 1rem;
    height: 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--background);
    cursor: pointer;
    flex-shrink: 0;
    position: relative;
    transition: background-color 150ms, border-color 150ms;

    &:checked {
      background-color: var(--primary);
      border-color: var(--primary);

      &::after {
        content: '';
        position: absolute;
        left: 3px;
        top: 0px;
        width: 5px;
        height: 9px;
        border: solid var(--primary-foreground);
        border-width: 0 2px 2px 0;
        transform: rotate(45deg);
      }
    }

    &:indeterminate {
      background-color: var(--primary);
      border-color: var(--primary);

      &::after {
        content: '';
        position: absolute;
        left: 2px;
        top: 50%;
        width: 8px;
        height: 2px;
        background: var(--primary-foreground);
        transform: translateY(-50%);
      }
    }

    &:focus-visible {
      outline: 2px solid var(--ring);
      outline-offset: 2px;
    }

    &:disabled {
      opacity: 0.5;
      cursor: not-allowed;
    }

    &[aria-invalid="true"] {
      border-color: var(--destructive);
    }
  }
}