.markdown-body {
  font-size: 1.0625rem;
  line-height: 1.75;
  color: #334155;
  word-wrap: break-word;
}
.dark .markdown-body { color: #cbd5e1; }
.markdown-body > *:first-child { margin-top: 0; }
.markdown-body > *:last-child { margin-bottom: 0; }

.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4,
.markdown-body h5,
.markdown-body h6 {
  position: relative;
  font-weight: 700;
  line-height: 1.3;
  margin-top: 1.75em;
  margin-bottom: 0.6em;
  letter-spacing: -0.01em;
  color: #0f172a;
  padding-left: 1.35em;
  scroll-margin-top: 5rem;
}
.dark .markdown-body h1,
.dark .markdown-body h2,
.dark .markdown-body h3,
.dark .markdown-body h4,
.dark .markdown-body h5,
.dark .markdown-body h6 { color: #f1f5f9; }
.markdown-body h1 { font-size: 2em; padding-bottom: 0.25em; border-bottom: 1px solid #e2e8f0; }
.dark .markdown-body h1 { border-bottom-color: #334155; }
.markdown-body h2 { font-size: 1.5em; padding-bottom: 0.2em; border-bottom: 1px solid #e2e8f0; }
.dark .markdown-body h2 { border-bottom-color: #334155; }
.markdown-body h3 { font-size: 1.25em; }
.markdown-body h4 { font-size: 1.1em; }
.markdown-body h5 { font-size: 1em; }
.markdown-body h6 { font-size: 0.9em; color: #64748b; }
.dark .markdown-body h6 { color: #94a3b8; }

.markdown-body .md-anchor {
  position: absolute;
  left: 0;
  top: 0;
  width: 1.15em;
  text-align: center;
  color: #94a3b8;
  text-decoration: none;
  opacity: 0.5;
  transition: opacity 0.15s, color 0.15s;
  font-weight: 400;
  line-height: inherit;
}
@media (hover: hover) {
  .markdown-body .md-anchor { opacity: 0; }
  .markdown-body h1:hover .md-anchor,
  .markdown-body h2:hover .md-anchor,
  .markdown-body h3:hover .md-anchor,
  .markdown-body h4:hover .md-anchor,
  .markdown-body h5:hover .md-anchor,
  .markdown-body h6:hover .md-anchor { opacity: 1; }
}
.markdown-body .md-anchor:hover,
.markdown-body .md-anchor:focus { opacity: 1; color: #06b6d4; outline: none; }

.markdown-body p { margin: 0 0 1em; }
.markdown-body a {
  color: var(--brand, #0891b2);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}
.markdown-body a:hover { text-decoration-thickness: 2px; }
.dark .markdown-body a { color: #22d3ee; }

.markdown-body ul,
.markdown-body ol { margin: 0 0 1em; padding-left: 1.75em; }
.markdown-body ul { list-style: disc; }
.markdown-body ol { list-style: decimal; }
.markdown-body li { margin: 0.25em 0; }
.markdown-body li > ul,
.markdown-body li > ol { margin-top: 0.25em; margin-bottom: 0; }

.markdown-body ul.contains-task-list { list-style: none; padding-left: 0; }
.markdown-body .task-list-item { display: flex; align-items: flex-start; gap: 0.5em; list-style: none; }
.markdown-body .task-list-item input[type="checkbox"] {
  margin-top: 0.35em;
  accent-color: #06b6d4;
  pointer-events: none;
}

.markdown-body blockquote {
  margin: 0 0 1em;
  padding: 0 1em;
  border-left: 4px solid #06b6d4;
  color: #64748b;
}
.dark .markdown-body blockquote { color: #94a3b8; }
.markdown-body blockquote > :first-child { margin-top: 0; }
.markdown-body blockquote > :last-child { margin-bottom: 0; }

.markdown-body hr {
  height: 0;
  margin: 1.75em 0;
  border: 0;
  border-top: 1px solid #e2e8f0;
}
.dark .markdown-body hr { border-top-color: #334155; }

.markdown-body code {
  padding: 0.15em 0.4em;
  font-size: 0.9em;
  border-radius: 0.375rem;
  background: rgba(15, 23, 42, 0.07);
  color: #0e7490;
}
.dark .markdown-body code {
  background: rgba(255, 255, 255, 0.08);
  color: #67e8f9;
}

.markdown-body .md-code-block {
  margin: 1em 0;
  border-radius: 0.5rem;
  overflow: hidden;
  border: 1px solid #e2e8f0;
}
.dark .markdown-body .md-code-block { border-color: #334155; }

.markdown-body .md-code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.4rem 0.75rem;
  background: #f8fafc;
  border-bottom: 1px solid #e2e8f0;
  font-size: 0.75rem;
}
.dark .markdown-body .md-code-header {
  background: #1e293b;
  border-bottom-color: #334155;
}
.markdown-body .md-code-lang {
  font-family: ui-monospace, monospace;
  color: #64748b;
  text-transform: lowercase;
}
.dark .markdown-body .md-code-lang { color: #94a3b8; }

.markdown-body .md-code-copy {
  padding: 0.15rem 0.5rem;
  border-radius: 0.375rem;
  border: 1px solid #e2e8f0;
  background: #fff;
  color: #475569;
  font-size: 0.7rem;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.markdown-body .md-code-copy:hover { background: #f1f5f9; color: #0f172a; }
.dark .markdown-body .md-code-copy {
  background: #0f172a;
  border-color: #475569;
  color: #cbd5e1;
}
.dark .markdown-body .md-code-copy:hover { background: #334155; color: #f8fafc; }

.markdown-body .md-code-block pre {
  margin: 0;
  padding: 1rem;
  overflow-x: auto;
  font-size: 0.875rem;
  line-height: 1.6;
  background: #f6f8fa;
  color: #24292e;
}
.dark .markdown-body .md-code-block pre {
  background: #0d1117;
  color: #c9d1d9;
}
.markdown-body .md-code-block pre code {
  padding: 0;
  background: transparent !important;
  color: inherit;
  font-size: inherit;
  border-radius: 0;
}
.markdown-body .md-code-block pre code.hljs {
  background: transparent;
  color: inherit;
}

.markdown-body img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 1.25em auto;
  border-radius: 0.5rem;
  box-sizing: content-box;
}

.markdown-body .md-table-wrap {
  overflow-x: auto;
  margin: 1em 0;
  -webkit-overflow-scrolling: touch;
}
.markdown-body table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95em;
}
.markdown-body th,
.markdown-body td {
  padding: 0.5rem 0.85rem;
  border: 1px solid #e2e8f0;
}
.dark .markdown-body th,
.dark .markdown-body td { border-color: #334155; }
.markdown-body th {
  font-weight: 600;
  background: #f8fafc;
}
.dark .markdown-body th { background: #1e293b; }
.markdown-body tr:nth-child(even) td { background: rgba(248, 250, 252, 0.5); }
.dark .markdown-body tr:nth-child(even) td { background: rgba(15, 23, 42, 0.4); }

.markdown-body del { color: #94a3b8; }
.markdown-body strong { font-weight: 700; }

.md-editor .md-btn {
  padding: 0.25rem 0.55rem;
  border-radius: 0.375rem;
  color: inherit;
  font-size: 0.8rem;
  line-height: 1.25;
  transition: background 0.12s;
}
.md-editor .md-btn:hover { background: rgba(0, 0, 0, 0.08); }
.dark .md-editor .md-btn:hover { background: rgba(255, 255, 255, 0.08); }
.md-editor .md-btn-active { background: rgba(6, 182, 212, 0.15); color: #0891b2; }

.md-editor .md-tab {
  padding: 0.25rem 0.65rem;
  border-radius: 0.375rem;
  font-size: 0.8rem;
  color: #64748b;
}
.md-editor .md-tab-active {
  background: #fff;
  color: #0f172a;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.06);
}
.dark .md-editor .md-tab-active {
  background: #0f172a;
  color: #fff;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.md-editor.md-split .md-editor-panes { display: grid; grid-template-columns: 1fr 1fr; gap: 0; }
@media (max-width: 768px) {
  .md-editor.md-split .md-editor-panes { grid-template-columns: 1fr; }
  .md-editor.md-split .md-preview { border-top: 0; border-radius: 0 0 0.5rem 0.5rem; }
}

.md-editor .md-preview {
  min-height: 300px;
  max-height: 70vh;
  overflow-y: auto;
}
.md-editor .md-preview-loading { opacity: 0.5; pointer-events: none; }

.md-editor .md-stats {
  font-size: 0.7rem;
  color: #94a3b8;
  font-variant-numeric: tabular-nums;
}

.md-editor .md-heading-menu {
  position: relative;
  display: inline-block;
}
.md-editor .md-heading-dropdown {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  z-index: 30;
  min-width: 8rem;
  margin-top: 0.25rem;
  padding: 0.25rem;
  border-radius: 0.5rem;
  background: #fff;
  border: 1px solid #e2e8f0;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}
.dark .md-editor .md-heading-dropdown {
  background: #1e293b;
  border-color: #334155;
}
.md-editor .md-heading-menu.open .md-heading-dropdown { display: block; }
.md-editor .md-heading-dropdown button {
  display: block;
  width: 100%;
  text-align: left;
  padding: 0.35rem 0.6rem;
  border-radius: 0.375rem;
  font-size: 0.8rem;
}
.md-editor .md-heading-dropdown button:hover { background: rgba(0, 0, 0, 0.06); }
.dark .md-editor .md-heading-dropdown button:hover { background: rgba(255, 255, 255, 0.06); }

.md-editor .md-drop {
  position: absolute;
  inset: 0;
  border-radius: 0 0 0.5rem 0.5rem;
  border: 2px dashed #06b6d4;
  background: rgba(6, 182, 212, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  color: #0891b2;
  font-weight: 500;
  font-size: 0.9rem;
}
.md-editor .md-drop.hidden { display: none; }