/* ═══════════════════════════════════════
   LatexCraft v4.0 — preview.css
   Preview panel content styling (paper feel even in dark mode)
   ═══════════════════════════════════════ */

.preview-body {
  flex: 1;
  overflow-y: auto;
  background: #fefefe;
  /* Always paper-like, regardless of editor theme */
}
[data-theme="parchment"] .preview-body { background: #fffef7; }

.preview-content {
  font-family: 'Charter', 'Georgia', 'Times New Roman', serif;
  max-width: 720px;
  margin: 0 auto;
  padding: 56px 64px;
  color: #1a1a2e;
  font-size: 14px;
  line-height: 1.7;
  transform-origin: top center;
}

.preview-content h1 {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 400;
  margin: 0 0 24px;
  color: #0a0a18;
  border-bottom: 2px solid #e8e8e8;
  padding-bottom: 12px;
  text-align: center;
}
.preview-content h2 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 400;
  margin: 36px 0 14px;
  color: #1a1a2e;
}
.preview-content h3 {
  font-family: var(--font-ui);
  font-size: 17px;
  font-weight: 600;
  margin: 24px 0 10px;
  color: #1a1a2e;
}
.preview-content h4 {
  font-family: var(--font-ui);
  font-size: 15px;
  font-style: italic;
  font-weight: 500;
  margin: 18px 0 8px;
  color: #2a2a3a;
}
.preview-content p { margin: 0 0 12px; text-align: justify; }
.preview-content ul, .preview-content ol { padding-left: 28px; margin: 12px 0; }
.preview-content li { margin: 4px 0; }

.preview-content blockquote {
  border-left: 3px solid #ddd;
  padding-left: 16px;
  margin: 14px 0;
  color: #666;
  font-style: italic;
}
.preview-content code {
  background: #f4f4f4;
  font-family: var(--font-editor);
  font-size: 13px;
  padding: 2px 5px;
  border-radius: 3px;
  color: #c7254e;
}
.preview-content pre {
  background: #1e1e2e;
  color: #cdd6f4;
  padding: 18px 20px;
  border-radius: 6px;
  overflow-x: auto;
  font-family: var(--font-editor);
  font-size: 13px;
  line-height: 1.55;
}
.preview-content pre code {
  background: transparent;
  color: inherit;
  padding: 0;
}

.preview-content table {
  border-collapse: collapse;
  margin: 16px auto;
  width: auto;
  max-width: 100%;
}
.preview-content td, .preview-content th {
  padding: 8px 14px;
  border: 1px solid #e5e5e5;
}
.preview-content th { background: #f8f8f8; font-weight: 600; }

.preview-content figure {
  text-align: center;
  margin: 18px 0;
}
.preview-content figure img { max-width: 100%; height: auto; }
.preview-content figcaption {
  font-size: 12px;
  color: #666;
  font-style: italic;
  margin-top: 6px;
}

.preview-content a { color: #0066cc; text-decoration: none; }
.preview-content a:hover { text-decoration: underline; }

.preview-content .doc-title {
  text-align: center;
  font-size: 32px;
  margin: 0 0 14px;
}
.preview-content .doc-author {
  text-align: center;
  font-style: italic;
  color: #555;
  margin-bottom: 20px;
}
.preview-content .doc-abstract {
  margin: 24px 0;
  padding: 16px 20px;
  background: #f9fafb;
  border-left: 3px solid #d1d5db;
  font-size: 13px;
}
.preview-content .doc-abstract-label {
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  margin-bottom: 6px;
  color: #6b7280;
}
.preview-content .doc-thm {
  margin: 12px 0;
  padding: 10px 14px;
  background: #f9fafb;
  border-left: 3px solid #6b7280;
}
.preview-content .doc-tcolorbox {
  margin: 14px 0;
  padding: 14px 18px;
  border: 1px solid #d1d5db;
  border-radius: 6px;
  background: #f9fafb;
}
.preview-content .doc-unrendered {
  margin: 14px 0;
  padding: 22px;
  background: #f3f4f6;
  border: 1px dashed #d1d5db;
  border-radius: 6px;
  text-align: center;
  color: #6b7280;
  font-size: 13px;
}
.preview-content .doc-center { text-align: center; margin: 12px 0; }

/* KaTeX math styling */
.preview-content .katex { color: #1a1a2e; font-size: 1em; }
.preview-content .katex-display {
  margin: 20px 0;
  text-align: center;
}

/* Empty state */
.preview-empty {
  display: grid;
  place-items: center;
  height: 100%;
  color: var(--text-muted);
  font-style: italic;
  font-size: 13px;
}