/* Legacy layout and paint share one cascade layer. Theme recipes own opt-in appearance. */
@layer legacy {
  .optional-practice-dialog {
    box-sizing: border-box;
    width: min(46rem, calc(var(--dialog-viewport-width, 100vw) - 2rem));
    max-height: calc(var(--dialog-viewport-height, 100dvh) - 2rem);
    padding: 0;
    border: 1px solid var(--line, #345365);
    border-radius: 1rem;
    color: var(--text, #f4f8fc);
    background: var(--panel, #10202d);
    overflow: hidden;
  }
  .optional-practice-dialog[open] {
    display: grid;
    grid-template-rows: auto minmax(0, 1fr) auto;
  }
  .optional-practice-dialog::backdrop {
    background: #040a12c9;
  }
  .optional-practice-dialog > header,
  .optional-practice-dialog > footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1rem;
  }
  .optional-practice-dialog > header {
    border-bottom: 1px solid var(--line, #345365);
  }
  .optional-practice-dialog > footer {
    border-top: 1px solid var(--line, #345365);
  }
  .optional-practice-dialog h2,
  .optional-practice-dialog h3 {
    margin: 0;
  }
  .optional-practice-dialog h2 {
    font-size: 1.25rem;
  }
  .optional-practice-dialog button {
    min-height: 44px;
    flex-shrink: 0;
  }
  .optional-practice-content {
    overflow: auto;
    overscroll-behavior: contain;
    padding: 0 1rem 1rem;
  }
  .optional-practice-content p {
    line-height: 1.5;
  }
  .optional-practice-packages {
    display: grid;
    gap: 0.6rem;
    list-style: none;
    padding: 0;
    margin: 1rem 0 0;
  }
  .optional-practice-packages li {
    border: 1px solid var(--line, #345365);
    border-radius: 0.6rem;
    overflow-wrap: anywhere;
  }
  .optional-practice-packages h3 {
    padding: 0.75rem;
  }
  .optional-practice-packages p {
    margin: 0.6rem 0.75rem;
  }
  .optional-practice-packages img {
    display: block;
    width: 100%;
    height: auto;
    max-height: 15rem;
    object-fit: cover;
  }
  .optional-practice-fallback {
    display: inline-block;
    padding: 0.8rem 0;
    color: var(--accent, #79daf1);
    margin-right: 1.25rem;
  }
  .optional-practice-packages a {
    display: flex;
    align-items: center;
    min-height: 44px;
    padding: 0.5rem 0.75rem;
    box-sizing: border-box;
    color: var(--accent, #79daf1);
    font-weight: 700;
  }
  .optional-practice-packages small {
    display: block;
    padding: 0 0.75rem 0.6rem;
  }
  .optional-practice-source-previews {
    padding-top: 1rem;
    margin-top: 1.5rem;
    border-top: 1px dashed var(--line, #345365);
  }
  .optional-practice-dialog :is(a, button):focus-visible {
    outline: 3px solid var(--accent, #79daf1);
    outline-offset: -3px;
  }
  @media (max-width: 420px), (max-height: 480px) {
    .optional-practice-dialog {
      width: calc(var(--dialog-viewport-width, 100vw) - 1rem);
      max-height: calc(var(--dialog-viewport-height, 100dvh) - 1rem);
    }
    .optional-practice-dialog > header,
    .optional-practice-dialog > footer {
      gap: 0.5rem;
      padding: 0.5rem;
    }
  }
}