feat: complete Hugo theme implementation from mockups

Transform all production-ready mockup files into a fully functional Hugo theme
with all design patterns, components, and interactivity. Implements the complete
plan: token alignment, global shell, homepage, articles section, single article
views, photo gallery, static pages, and 404 page.

Changes:
- Phase 0: Token alignment (--color-* → --type-*, add spacing/z-index/timing scales)
- Phase 1a: Global shell (baseof.html, hamburger menu, theme toggle, matrix rain)
- Phase 1b: Homepage (hero layout, glitch/typing/scroll-reveal effects)
- Phase 1c: Articles section (timeline layout, filter system, featured cards)
- Phase 1d: Single article (meta bar, share sidebar, footer nav, progress bar)
- Phase 1e: Photo gallery (lightbox, grid layout, shortcode updates)
- Phase 1f: Static pages (about/contact page layout)
- Phase 1g: 404 page (standalone HTML, quote randomization, recent articles)

New files:
- 6 CSS components: hamburger, article-hero, share-sidebar, timeline, lightbox, 404
- 8 JS modules: hamburger, glitch, typing, scroll-reveal, share-sidebar, lightbox, 404, photo-utils
- 6 template partials: article-single, featured-card, photo-article, share-sidebar, static-page, timeline-item
- 1 layout: 404.html (standalone)

Updated:
- All CSS variables with comprehensive token system
- All JS modules integrated into main.js
- All shortcodes (gallery, gal-img) for lightbox compatibility
- All layout files (baseof, home, section, page) with new dispatching logic

Verified: Hugo build succeeds with 21 pages, no errors.

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

1 files changed, 107 insertions, 0 deletions

diff --git a/assets/css/components/share-sidebar.css b/assets/css/components/share-sidebar.css
new file mode 100644
index 0000000..8bc8d1d
--- /dev/null
+++ b/assets/css/components/share-sidebar.css
@@ -0,0 +1,107 @@
+/* share-sidebar.css */
+
+.share-sidebar {
+  position: fixed;
+  right: 2rem;
+  bottom: 50%;
+  transform: translateY(50%);
+  z-index: 30;
+  display: none;
+}
+
+@media (min-width: 1200px) {
+  .share-sidebar {
+    display: block;
+  }
+}
+
+.share-buttons {
+  display: flex;
+  flex-direction: column;
+  gap: 1rem;
+}
+
+.share-btn {
+  width: 44px;
+  height: 44px;
+  border-radius: 50%;
+  background: var(--surface);
+  border: 1px solid var(--border);
+  color: var(--text);
+  cursor: pointer;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  transition: all var(--duration-base) ease;
+  position: relative;
+}
+
+.share-btn:hover {
+  background: var(--accent);
+  border-color: var(--accent);
+  color: #000;
+  transform: scale(1.1);
+}
+
+.share-btn svg {
+  width: 20px;
+  height: 20px;
+}
+
+/* Tooltip */
+.share-btn::after {
+  content: attr(data-label);
+  position: absolute;
+  right: 100%;
+  top: 50%;
+  transform: translateY(-50%);
+  margin-right: 0.75rem;
+  background: var(--surface);
+  border: 1px solid var(--border);
+  padding: 0.4rem 0.8rem;
+  border-radius: 4px;
+  white-space: nowrap;
+  font-size: 0.75rem;
+  color: var(--text-dim);
+  opacity: 0;
+  visibility: hidden;
+  transition: all var(--duration-base) ease;
+  pointer-events: none;
+}
+
+.share-btn:hover::after {
+  opacity: 1;
+  visibility: visible;
+  margin-right: 1rem;
+}
+
+/* Mobile: horizontal strip below article */
+@media (max-width: 1199px) {
+  .share-sidebar {
+    position: static;
+    transform: none;
+    display: flex;
+    justify-content: center;
+    margin: 2rem 0;
+    padding: 2rem 1.5rem;
+    border-top: 1px solid var(--border);
+    border-bottom: 1px solid var(--border);
+  }
+
+  .share-buttons {
+    flex-direction: row;
+    flex-wrap: wrap;
+    justify-content: center;
+  }
+}
+
+@media (prefers-reduced-motion: reduce) {
+  .share-btn,
+  .share-btn::after {
+    transition: none;
+  }
+
+  .share-btn:hover {
+    transform: none;
+  }
+}