/* Student Study Guide: authored guides and page states.
   The generated (legacy) guide keeps its styles in styles.css; everything here
   is scoped to authored sections or to the tabs' hidden state, so the
   generated guides render exactly as before. */

/* .study-guide-tabs sets display:flex, which would override the hidden attribute */
.study-guide-tabs[hidden] { display: none; }
/* Set before first paint by study-guide.html for an explicit non-legacy ?course,
   so the legacy tabs never flash before study-guide.js runs */
html[data-guide-tabs="hidden"] .study-guide-tabs { display: none; }

/* One authored section: DB heading (h2) and its sanitized content */
.study-guide-section { margin-bottom: 36px; }
.study-guide-section:last-child { margin-bottom: 0; }

.study-guide-section > h2 {
  font-size: 1.3rem;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--accent);
  overflow-wrap: anywhere;
}

.study-guide-authored {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--text);
  overflow-wrap: anywhere;
}

.study-guide-authored > :first-child { margin-top: 0; }
.study-guide-authored > :last-child { margin-bottom: 0; }

.study-guide-authored p,
.study-guide-authored ul,
.study-guide-authored ol,
.study-guide-authored blockquote,
.study-guide-authored pre,
.study-guide-authored .study-guide-table-wrap,
.study-guide-authored hr {
  margin: 0 0 14px;
}

.study-guide-authored ul,
.study-guide-authored ol { padding-left: 22px; }
.study-guide-authored li { margin-bottom: 6px; }
.study-guide-authored li > ul,
.study-guide-authored li > ol { margin: 6px 0 0; }

.study-guide-authored h3,
.study-guide-authored h4,
.study-guide-authored h5,
.study-guide-authored h6 {
  margin: 22px 0 10px;
  line-height: 1.35;
}
.study-guide-authored h3 { font-size: 1.05rem; color: var(--accent-dark); }
.study-guide-authored h4 { font-size: 1rem; }
.study-guide-authored h5 { font-size: 0.95rem; }
.study-guide-authored h6 { font-size: 0.9rem; color: var(--muted); }

.study-guide-authored a {
  color: var(--accent-dark);
  text-decoration: underline;
  text-underline-offset: 2px;
}
/* A link whose destination was removed is plain text */
.study-guide-authored a:not([href]) { color: inherit; text-decoration: none; }
.study-guide-authored a[href]:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
  border-radius: 2px;
}

.study-guide-authored blockquote {
  padding: 4px 0 4px 16px;
  border-left: 3px solid var(--line);
  color: var(--muted);
}

.study-guide-authored code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.88em;
  padding: 1px 5px;
  border-radius: 4px;
  background: var(--surface-alt);
}

.study-guide-authored pre {
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  background: var(--surface-alt);
  overflow-x: auto;
  white-space: pre;
  overflow-wrap: normal;
}
.study-guide-authored pre code { padding: 0; background: none; font-size: 0.85rem; }

.study-guide-authored hr {
  border: 0;
  border-top: 1px solid var(--line);
}

/* Tables scroll inside their own box on small screens */
.study-guide-table-wrap {
  max-width: 100%;
  overflow-x: auto;
  border-radius: var(--radius-sm);
}
.study-guide-table-wrap:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}
.study-guide-authored table {
  border-collapse: collapse;
  min-width: 100%;
  font-size: 0.9rem;
  overflow-wrap: normal;
}
.study-guide-authored th,
.study-guide-authored td {
  padding: 8px 12px;
  border: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}
.study-guide-authored th { background: var(--surface-alt); font-weight: 700; }

@media (max-width: 600px) {
  .study-guide-authored table { font-size: 0.85rem; }
  .study-guide-authored th,
  .study-guide-authored td { padding: 6px 8px; }
}

@media print {
  .study-guide-section { break-inside: auto; }
  .study-guide-section > h2,
  .study-guide-authored h3,
  .study-guide-authored h4,
  .study-guide-authored h5,
  .study-guide-authored h6 { break-after: avoid; page-break-after: avoid; }
  .study-guide-authored tr,
  .study-guide-authored li,
  .study-guide-authored blockquote,
  .study-guide-authored pre { break-inside: avoid; page-break-inside: avoid; }
  .study-guide-table-wrap { overflow: visible; }
  .study-guide-authored pre { white-space: pre-wrap; overflow: visible; }
  .study-guide-authored a { color: inherit; }
  /* No URLs are printed after links */
  .study-guide-authored a::after { content: none !important; }
}