/* -- Theme Switcher component ---------------------------------
   Dropdown that swaps a <link id="theme-css"> stylesheet. Own popover +
   anchor rules (self-contained, mirrors .dropdown-content) + menu rows with
   theme color dots. */

@layer components {
  .theme-switcher {
    position: relative;
    display: inline-flex;
  }

  .theme-switcher-trigger {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    max-width: 14rem;

    & .theme-switcher-dot {
      width: 0.75rem;
      height: 0.75rem;
      border-radius: 9999px;
      border: 1px solid var(--border);
      flex-shrink: 0;
      /* the active theme's primary color, set inline by theme-switcher.js */
      background: var(--primary);
    }

    & .theme-switcher-label {
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }

    & .theme-switcher-chevron {
      width: 1rem;
      height: 1rem;
      margin-inline-start: auto;
      flex-shrink: 0;
      opacity: 0.6;
    }
  }

  .theme-switcher-menu {
    background-color: var(--popover);
    color: var(--popover-foreground);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 0.25rem;
    min-width: 12rem;
    max-height: 18rem;
    overflow-y: auto;
    overscroll-behavior: contain;
    box-shadow: 0 4px 16px oklch(0 0 0 / 0.12), 0 0 0 1px var(--border);

    /* Anchor positioning - the trigger names itself, the menu follows */
    position: fixed;
    inset: auto;
    top: anchor(bottom);
    left: anchor(left);
    margin: 0;
    margin-top: 4px;
    position-try-fallbacks: flip-block;

    /* Enter/exit animation on the discrete display switch */
    opacity: 0;
    transform: scale(0.96) translateY(-0.25rem);
    transition: opacity 150ms ease, transform 150ms ease,
                display 150ms allow-discrete;

    &:popover-open {
      opacity: 1;
      transform: scale(1) translateY(0);
    }
  }

  @starting-style {
    .theme-switcher-menu:popover-open {
      opacity: 0;
      transform: scale(0.96) translateY(-0.25rem);
    }
  }

  .theme-switcher-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    width: 100%;
    padding: 0.375rem 0.5rem;
    border-radius: calc(var(--radius) * 0.6);
    font-size: 0.875rem;
    border: none;
    background: transparent;
    color: inherit;
    cursor: pointer;
    text-align: start;

    &:hover,
    &:focus-visible,
    &[data-highlighted] {
      background: var(--accent);
      color: var(--accent-foreground);
      outline: none;
    }

    &[aria-checked='true'] {
      font-weight: 500;

      & .theme-switcher-check {
        visibility: visible;
      }
    }

    & .theme-switcher-dots {
      display: inline-flex;
      gap: 2px;
      flex-shrink: 0;
    }

    & .theme-switcher-dots span {
      width: 0.5rem;
      height: 0.5rem;
      border-radius: 9999px;
    }

    & .theme-switcher-name {
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }

    & .theme-switcher-check {
      width: 1rem;
      height: 1rem;
      margin-inline-start: auto;
      visibility: hidden;
      flex-shrink: 0;
    }
  }

  /* Accessibility */
  @media (prefers-reduced-motion: reduce) {
    .theme-switcher-menu {
      transition: none;
    }
  }

  @media (forced-colors: active) {
    .theme-switcher-menu {
      border: 1px solid CanvasText;
    }
  }
}