/* ================================================================
   Markdown Body — Rendered lecture content styling
   ================================================================ */

.markdown-body {
  font-family: 'IBM Plex Sans', 'Segoe UI', sans-serif;
  font-size: 16px;
  line-height: 1.85;
  color: #d0d8e4;        /* slightly brighter than --text for readability */
  max-width: 820px;
}

/* Headings — all use a readable sans-serif, not monospace */
.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4,
.markdown-body h5,
.markdown-body h6 {
  font-family: 'IBM Plex Sans', 'Segoe UI', sans-serif;
  margin-top: 1.8em;
  margin-bottom: 0.6em;
  line-height: 1.35;
  font-weight: 600;
}

.markdown-body h1 {
  font-size: 1.75em;
  font-weight: 700;
  color: #00ff41;
  border-bottom: 1px solid #00ff4133;
  padding-bottom: 0.35em;
  text-shadow: 0 0 18px rgba(0,255,65,0.25);
}
.markdown-body h2 {
  font-size: 1.35em;
  font-weight: 600;
  color: #4dff77;        /* lighter green — clearly a heading, clearly green */
  border-bottom: 1px solid #1e2a3a;
  padding-bottom: 0.25em;
}
.markdown-body h3 {
  font-size: 1.1em;
  color: #00d4ff;        /* cyan */
}
.markdown-body h4 {
  font-size: 1em;
  color: #66e0ff;        /* lighter cyan */
}
.markdown-body h5 {
  font-size: 0.95em;
  color: #c9d1d9;
}
.markdown-body h6 {
  font-size: 0.9em;
  color: #8b949e;
}

/* Paragraphs */
.markdown-body p {
  margin-bottom: 1em;
}

/* Links */
.markdown-body a {
  color: var(--accent-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0,212,255,0.3);
  transition: border-color 0.2s, color 0.2s;
}
.markdown-body a:hover {
  color: #fff;
  border-bottom-color: var(--accent-cyan);
}

/* Code inline */
.markdown-body code {
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.85em;
  background: rgba(0,255,65,0.08);
  border: 1px solid rgba(0,255,65,0.15);
  color: var(--accent-green);
  padding: 1px 6px;
  border-radius: 3px;
}

/* Code block */
.markdown-body pre {
  background: #080d12;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  overflow-x: auto;
  margin: 1.5em 0;
  position: relative;
}
.markdown-body pre::before {
  content: '$ ';
  color: var(--accent-green);
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  position: absolute;
  top: 8px; left: 14px;
  opacity: 0.4;
}
.markdown-body pre code {
  background: none;
  border: none;
  color: #b5cea8;
  padding: 0;
  font-size: 13px;
  line-height: 1.6;
}

/* Blockquote */
.markdown-body blockquote {
  border-left: 3px solid var(--accent-green);
  margin: 1.5em 0;
  padding: 12px 20px;
  background: rgba(0,255,65,0.04);
  color: var(--text-dim);
  font-style: italic;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.markdown-body blockquote p { margin-bottom: 0; }

/* Lists */
.markdown-body ul,
.markdown-body ol {
  margin: 1em 0 1em 1.5em;
}
.markdown-body li { margin-bottom: 0.4em; }
.markdown-body li > ul,
.markdown-body li > ol { margin-top: 0.4em; }
.markdown-body ul li::marker { color: var(--accent-green); }
.markdown-body ol li::marker { color: var(--accent-cyan); font-family: 'JetBrains Mono', monospace; }

/* Tables */
.markdown-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5em 0;
  font-size: 13px;
  overflow: auto;
  display: block;
}
.markdown-body thead {
  background: var(--bg-card);
}
.markdown-body th {
  padding: 10px 14px;
  text-align: left;
  color: var(--accent-green);
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  border: 1px solid var(--border);
}
.markdown-body td {
  padding: 9px 14px;
  border: 1px solid var(--border);
  color: var(--text);
}
.markdown-body tr:nth-child(even) td { background: var(--bg-card); }
.markdown-body tr:hover td { background: var(--bg-hover); }

/* Horizontal rule */
.markdown-body hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2em 0;
}

/* Images */
.markdown-body img {
  max-width: 100%;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

/* Strong / Em */
.markdown-body strong { color: var(--heading); font-weight: 600; }
.markdown-body em { color: var(--accent-cyan); font-style: italic; }

/* Hashtag-style tags (custom: #tag in content) */
.markdown-body p a[href^="#"],
.markdown-body li a[href^="#"] {
  color: var(--accent-green);
  background: rgba(0,255,65,0.08);
  border: 1px solid rgba(0,255,65,0.2);
  border-radius: 3px;
  padding: 1px 5px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
}

/* First heading no top margin */
.markdown-body > h1:first-child,
.markdown-body > h2:first-child { margin-top: 0; }