Add Table of Contents

also refactor CSS

assets/style.css

@@ -325,59 +325,32 @@ textarea {
     box-sizing: border-box;
 }
 
-/* === Diary views === */
-.diary-section {
-    margin: 2rem 0;
-    padding-top: 1.5rem;
-    border-top: 1px dashed var(--secondary);
-}
-
-.diary-section:first-child {
-    border-top: none;
-    padding-top: 0;
-    margin-top: 0;
-}
-
-.diary-section h2 {
-    font-size: 1.2rem;
-    color: var(--text);
-    margin-bottom: 0.75rem;
-    font-weight: normal;
-}
-
-.diary-photo-count {
+/* === Muted text === */
+.muted {
     color: var(--text-muted);
     font-size: 0.85rem;
 }
 
-.diary-photo-grid {
+/* === Photo grid === */
+.photo-grid {
     display: grid;
     grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
     gap: 0.4rem;
     margin-top: 0.75rem;
 }
 
-.diary-photo-grid a {
+.photo-grid a {
     display: block;
     line-height: 0;
 }
 
-.diary-photo-grid img {
+.photo-grid img {
     width: 100%;
     height: 140px;
     object-fit: cover;
     display: block;
 }
 
-.diary-section .content {
-    margin-bottom: 0.75rem;
-}
-
-/* === Section edit links === */
-.section-edit {
-    margin-left: 0.75rem;
-}
-
 /* === Empty state === */
 .empty {
     padding: 1rem;
@@ -405,7 +378,99 @@ hr {
     background: var(--primary-hover);
 }
 
+/* === Table of contents === */
+.toc {
+    position: fixed;
+    top: 1rem;
+    right: 1rem;
+    width: 14rem;
+    max-height: calc(100vh - 2rem);
+    overflow-y: auto;
+    border: 1px solid var(--secondary);
+    background: var(--bg);
+    padding: 0.5rem 0.75rem;
+    font-size: 0.85rem;
+}
+
+.toc-header {
+    font-size: 0.75rem;
+    text-transform: uppercase;
+    letter-spacing: 0.05em;
+    color: var(--text-muted);
+    border-bottom: 1px dashed var(--secondary);
+    padding-bottom: 0.25rem;
+    margin-bottom: 0.4rem;
+}
+
+.toc ul {
+    list-style: none;
+    margin: 0;
+    padding: 0;
+}
+
+.toc li {
+    margin: 0.15rem 0;
+}
+
+.toc a {
+    color: var(--link);
+    display: block;
+    overflow: hidden;
+    text-overflow: ellipsis;
+    white-space: nowrap;
+}
+.toc a:hover {
+    color: var(--link-hover);
+}
+
+.toc-h2 {
+    padding-left: 0.8rem;
+}
+.toc-h3 {
+    padding-left: 1.6rem;
+}
+
+.toc-toggle {
+    display: none;
+}
+
 /* === Responsive === */
+@media (max-width: 1100px) {
+    .toc-toggle {
+        display: block;
+        background: none;
+        border: 1px solid var(--secondary);
+        color: var(--text);
+        font: inherit;
+        font-size: 0.8rem;
+        text-transform: uppercase;
+        letter-spacing: 0.05em;
+        cursor: pointer;
+        padding: 0.4rem 0.75rem;
+        margin: 1rem auto;
+        width: calc(100% - 2rem);
+        max-width: 860px;
+    }
+    .toc-toggle::before {
+        content: "▸ ";
+        color: var(--secondary);
+    }
+    .toc-toggle[aria-expanded="true"]::before {
+        content: "▾ ";
+    }
+    .toc {
+        position: static;
+        display: none;
+        width: calc(100% - 2rem);
+        max-width: 860px;
+        margin: 0 auto 1rem;
+        max-height: none;
+    }
+    .toc.is-open {
+        display: block;
+    }
+}
+
 @media (max-width: 600px) {
     header {
         padding: 0.5rem 0.75rem;
@@ -416,4 +481,8 @@ hr {
     textarea {
         min-height: 50vh;
     }
+    .toc-toggle,
+    .toc.is-open {
+        width: calc(100% - 1.5rem);
+    }
 }