/*
 * Modal styles
 * Native dialog-based modals with backdrop
 */

@layer components {
  /* Modal dialog */
  .modal {
    position: fixed;
    inset: 0;
    width: 100%;
    max-width: none;
    height: 100%;
    max-height: none;
    margin: 0;
    padding: 0;
    background: transparent;
    border: none;
    overflow: hidden;

    /* Closed state */
    opacity: 0;
    visibility: hidden;
    transition: 
      opacity var(--duration-normal) var(--ease-out),
      visibility var(--duration-normal) var(--ease-out);

    /* Open state */
    &[open] {
      opacity: 1;
      visibility: visible;
    }
  }

  /* Backdrop overlay */
  .modal-backdrop {
    position: fixed;
    inset: 0;
    background-color: color-mix(in oklch, var(--color-canvas) 72%, transparent);
    cursor: pointer;
  }

  /* Content container */
  .modal-content {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: calc(100% - var(--space-8));
    max-width: 32rem;
    max-height: calc(100vh - var(--space-8));
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    display: flex;
    flex-direction: column;

    /* Animation */
    opacity: 0;
    transform: translate(-50%, -48%);
    transition: 
      opacity var(--duration-normal) var(--ease-out),
      transform var(--duration-normal) var(--ease-out);

    .modal[open] & {
      opacity: 1;
      transform: translate(-50%, -50%);
    }
  }

  /* Size variants */
  .modal-sm .modal-content {
    max-width: 24rem;
  }

  .modal-lg .modal-content {
    max-width: 48rem;
  }

  .modal-xl .modal-content {
    max-width: 64rem;
  }

  .modal-full .modal-content {
    max-width: calc(100% - var(--space-8));
    max-height: calc(100vh - var(--space-8));
    width: calc(100% - var(--space-8));
  }

  /* Header */
  .modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    padding: var(--space-4) var(--space-5);
    border-block-end: 1px solid var(--color-border-muted);
    flex-shrink: 0;
  }

  .modal-title {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--color-ink);
    margin: 0;
    letter-spacing: -0.01em;
  }

  .modal-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    padding: 0;
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--color-ink-muted);
    cursor: pointer;
    transition: 
      background-color var(--duration-fast) var(--ease-out),
      color var(--duration-fast) var(--ease-out);

    &:hover {
      background-color: var(--color-surface-muted);
      color: var(--color-ink);
    }

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

  /* Body */
  .modal-body {
    padding: var(--space-5);
    overflow-y: auto;
    flex: 1;
  }

  /* Footer */
  .modal-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-5);
    border-block-start: 1px solid var(--color-border-muted);
    background-color: var(--color-surface-muted);
    flex-shrink: 0;
  }

  /* Actions container (used within body for inline actions) */
  .modal-actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--space-3);
    margin-block-start: var(--space-5);
  }

  /* Global confirm dialog */
  .confirm-modal-heading {
    display: flex;
    align-items: center;
    gap: var(--space-3);
  }

  .confirm-modal-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    inline-size: 2rem;
    block-size: 2rem;
    color: var(--color-primary);
    background-color: var(--color-primary-subtle);
    border: 1px solid var(--color-primary-border);
    border-radius: var(--radius-full);
    flex-shrink: 0;
  }

  .confirm-modal[data-confirm-variant="danger"] .confirm-modal-icon {
    color: var(--color-negative);
    background-color: var(--color-negative-canvas);
    border-color: var(--color-negative-border);
  }

  .confirm-modal-body {
    padding-block-start: var(--space-4);
  }

  .confirm-modal-message {
    margin: 0;
    color: var(--color-ink-muted);
    line-height: var(--leading-relaxed);
    white-space: pre-line;
  }

  .confirm-modal-footer {
    background-color: transparent;
  }

  /* Markdown export modal preview + toggle */
  .markdown-export-hint {
    display: flex;
    align-items: flex-start;
    gap: var(--space-2);
    margin-block-start: var(--space-2);
    font-size: var(--text-sm);
    color: var(--color-ink-muted);
  }

  .markdown-export-hint > svg {
    flex-shrink: 0;
    margin-block-start: 0.2em;
  }

  .markdown-export-toggle {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    margin-block-start: var(--space-3);
    font-size: var(--text-sm);
    color: var(--color-ink-muted);
    cursor: pointer;
  }

  .github-markdown-textarea {
    display: block;
    inline-size: 100%;
    min-block-size: 24rem;
    margin-block-start: var(--space-3);
    padding: var(--space-3);
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    line-height: var(--leading-normal);
    color: var(--color-ink);
    background-color: var(--color-surface-muted);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    resize: vertical;
    white-space: pre;
    overflow: auto;

    &:focus {
      outline: none;
      border-color: var(--color-focus);
      box-shadow: var(--shadow-focus);
    }
  }
}