.modal-backdrop {
      position: fixed;
      inset: 0;
      background: var(--color-overlay);
      display: none;
      align-items: center;
      justify-content: center;
      padding: var(--space-4);
      box-sizing: border-box;
      overflow-y: auto;
      z-index: 11000;
    }
    .modal-backdrop.active {
      display: flex;
    }
    .modal-card {
      background: var(--panel);
      border-radius: var(--radius-md);
      padding: var(--space-5);
      width: min(360px, 92vw);
      min-width: 0;
      max-width: 100%;
      max-height: calc(var(--viewport-height) - var(--space-4) - var(--space-4));
      box-sizing: border-box;
      overflow-y: auto;
      box-shadow: var(--shadow-lg);
      display: flex;
      flex-direction: column;
      gap: var(--space-3);
    }
    .modal-title {
      font-weight: var(--font-weight-bold);
      font-size: var(--font-size-xl);
    }
    .modal-actions {
      display: flex;
      flex-wrap: wrap;
      justify-content: flex-end;
      gap: var(--space-2);
    }

    .modal-backdrop[data-modal-root] .birthday-announcement-dialog[data-modal-dialog] {
      width: min(760px, 100%);
      padding: 0;
      gap: 0;
      overflow: hidden;
    }

    .birthday-announcement-header {
      display: flex;
      flex: 0 0 auto;
      align-items: center;
      justify-content: space-between;
      gap: var(--space-3);
      padding: var(--space-4) var(--space-5);
      border-bottom: var(--border-width) solid var(--border);
    }

    .birthday-announcement-controls {
      display: flex;
      align-items: center;
      gap: var(--space-2);
    }

    .birthday-announcement-text {
      flex: 1 1 auto;
      min-height: 0;
      margin: 0;
      padding: var(--space-5);
      overflow: auto;
      color: var(--text);
      font-family: inherit;
      font-size: var(--font-size-lg);
      line-height: 1.55;
      overflow-wrap: anywhere;
      white-space: pre-wrap;
      cursor: text;
      -webkit-user-select: text;
      user-select: text;
    }

    .birthday-announcement-text:focus-visible {
      outline: var(--focus-ring-width) solid var(--color-accent);
      outline-offset: -4px;
    }

    @media (max-width: 600px) {
      .birthday-announcement-header,
      .birthday-announcement-text {
        padding: var(--space-4);
      }
    }