feat: Multiple book improvements

- Format spell tables like they are in the book
- Add permalinks to headers
- Formatting
- Book-wide search

css/book-layout.css

@@ -205,3 +205,160 @@ li.active .page-num {
   padding-bottom: 0.8em;
   margin-bottom: 1.4em;
 }
+
+/* ── Search modal ── */
+.search-overlay {
+  position: fixed;
+  inset: 0;
+  background: rgba(0, 0, 0, 0.55);
+  z-index: 1000;
+  display: flex;
+  align-items: flex-start;
+  justify-content: center;
+  padding-top: 10vh;
+}
+
+.search-modal {
+  width: 580px;
+  max-width: calc(100vw - 40px);
+  max-height: 70vh;
+  background: var(--surface2);
+  border: 1px solid var(--border-bright);
+  display: flex;
+  flex-direction: column;
+  overflow: hidden;
+}
+
+.search-input {
+  width: 100%;
+  padding: 14px 16px;
+  background: var(--surface);
+  border: none;
+  border-bottom: 1px solid var(--border-bright);
+  color: var(--text);
+  font-family: var(--font-body);
+  font-size: 1rem;
+  outline: none;
+  flex-shrink: 0;
+}
+
+.search-input::placeholder { color: var(--text-dim); }
+
+.search-results {
+  overflow-y: auto;
+  flex: 1;
+  list-style: none;
+  padding: 0;
+  margin: 0;
+}
+
+.search-result {
+  padding: 10px 16px;
+  border-bottom: 1px solid var(--border);
+  cursor: pointer;
+  display: flex;
+  flex-direction: column;
+  gap: 3px;
+  transition: background 0.1s;
+}
+
+.search-result:last-child { border-bottom: none; }
+
+.search-result:hover,
+.search-result.active { background: var(--surface3); }
+
+.search-result-meta {
+  display: flex;
+  justify-content: space-between;
+  align-items: baseline;
+  gap: 8px;
+}
+
+.search-result-heading {
+  font-family: var(--font-display);
+  font-size: 0.7rem;
+  letter-spacing: 0.08em;
+  color: var(--teal);
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  min-width: 0;
+}
+
+.search-result-page {
+  font-family: var(--font-mono);
+  font-size: 0.7rem;
+  color: var(--text-dim);
+  white-space: nowrap;
+  flex-shrink: 0;
+}
+
+.search-result-snippet {
+  font-size: 0.85rem;
+  color: var(--text-dim);
+  line-height: 1.5;
+}
+
+.search-result-snippet mark {
+  background: none;
+  color: var(--gold);
+  font-weight: 600;
+}
+
+.search-empty {
+  padding: 24px 16px;
+  text-align: center;
+  color: var(--text-dim);
+  font-family: var(--font-mono);
+  font-size: 0.8rem;
+}
+
+.search-footer {
+  display: flex;
+  gap: 16px;
+  padding: 7px 14px;
+  border-top: 1px solid var(--border);
+  background: var(--surface3);
+  flex-shrink: 0;
+}
+
+.search-footer span {
+  font-family: var(--font-mono);
+  font-size: 0.68rem;
+  color: var(--text-dim);
+}
+
+/* ── Heading permalink buttons ── */
+.page-section h1,
+.page-section h2,
+.page-section h3 {
+  position: relative;
+  scroll-margin-top: 60px;
+}
+
+.heading-link {
+  position: absolute;
+  left: -24px;
+  top: 50%;
+  transform: translateY(-50%);
+  background: none;
+  border: none;
+  cursor: pointer;
+  color: var(--text-dim);
+  font-family: var(--font-mono);
+  font-size: 17px;
+  padding: 2px 4px;
+  line-height: 1;
+  transition: color 0.15s;
+  user-select: none;
+}
+
+/* h1 has padding-bottom: 0.3em — shift button up so it centers with the text line, not the full box */
+.page-section h1 > .heading-link {
+  top: calc(50% - 5px);
+}
+
+.heading-link:hover,
+.heading-link--copied {
+  color: var(--teal);
+}