@layer components {
  .popover {
    position: fixed;
    inset: auto;
    margin: 0;
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    background-color: var(--popover);
    color: var(--popover-foreground);
    padding: 1rem;
    box-shadow: var(--shadow-md);
    width: 20rem;
    opacity: 0;
    translate: 0 -4px;
    transition: opacity 150ms ease, translate 150ms ease, display 150ms allow-discrete;

    /* -- Default: bottom center -- */
    position-area: bottom;
    margin-top: 4px;
    position-try-fallbacks: flip-block;

    &:popover-open {
      opacity: 1;
      translate: 0 0;
    }

    /* ----- Side variants ----- */
    &[data-side="top"] {
      position-area: top;
      margin-top: 0;
      margin-bottom: 4px;
      translate: 0 4px;
      &:popover-open { translate: 0 0; }
    }

    &[data-side="left"] {
      position-area: left;
      margin-top: 0;
      margin-right: 4px;
      translate: 4px 0;
      position-try-fallbacks: flip-inline;
      &:popover-open { translate: 0 0; }
    }

    &[data-side="right"] {
      position-area: right;
      margin-top: 0;
      margin-left: 4px;
      translate: -4px 0;
      position-try-fallbacks: flip-inline;
      &:popover-open { translate: 0 0; }
    }

    /* ----- Align variants (combined with side) ----- */
    &[data-align="start"] {
      &:not([data-side="left"]):not([data-side="right"]) { position-area: bottom left; }
      &[data-side="top"] { position-area: top left; }
      &[data-side="left"] { position-area: left top; }
      &[data-side="right"] { position-area: right top; }
    }

    &[data-align="end"] {
      &:not([data-side="left"]):not([data-side="right"]) { position-area: bottom right; }
      &[data-side="top"] { position-area: top right; }
      &[data-side="left"] { position-area: left bottom; }
      &[data-side="right"] { position-area: right bottom; }
    }
  }

  @starting-style {
    .popover:popover-open { opacity: 0; translate: 0 -4px; }
    .popover[data-side="top"]:popover-open { opacity: 0; translate: 0 4px; }
    .popover[data-side="left"]:popover-open { opacity: 0; translate: 4px 0; }
    .popover[data-side="right"]:popover-open { opacity: 0; translate: -4px 0; }
  }

  .popover-header { margin-bottom: 0.75rem; }
  .popover-title { margin: 0; font-size: 0.875rem; font-weight: 500; color: var(--foreground); }
  .popover-description { margin: 0.25rem 0 0; font-size: 0.8125rem; color: var(--muted-foreground); }
  .popover-content { font-size: 0.875rem; }

  @media (prefers-reduced-motion: reduce) {
    .popover {
      transition: none;
    }
  }
}