Initial Hugo gallery site with custom landing page

- Hugo site with nicokaiser/hugo-theme-gallery (git submodule)
- Full-viewport hero with parallax scrolling (bg at 70%, text at 85% speed)
- Entrance animations on hero title and subtitle
- Bouncing scroll arrow that fades out on scroll
- Header suppressed on homepage, shown on all other pages
- Intro text section between hero and album grid
- Cats placeholder album with 8 images
- .gitignore excludes public/, resources/, .hugo_build.lock, .idea/

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

assets/css/custom.css

@@ -0,0 +1,137 @@
+/* ── Hero ─────────────────────────────────────────────── */
+
+section.hero {
+  position: relative;
+  overflow: hidden;
+  width: 100%;
+  height: 100vh;
+  padding: 0;
+  margin: 0 0 4rem;
+}
+
+/* Background image layer — oversized so parallax has room */
+.hero-bg {
+  position: absolute;
+  top: -30%;
+  left: 0;
+  width: 100%;
+  height: 160%;
+  background-position: center;
+  background-size: cover;
+  background-repeat: no-repeat;
+  will-change: transform;
+}
+
+/* Gradient overlay sits above bg, below content */
+.hero-bg::after {
+  content: "";
+  position: absolute;
+  inset: 0;
+  background:
+    linear-gradient(to bottom, rgba(0, 0, 0, 0.55) 0%, transparent 40%),
+    linear-gradient(to top,   rgba(0, 0, 0, 0.35) 0%, transparent 20%);
+}
+
+/* Foreground layer — content + scroll arrow */
+.hero-fg {
+  position: relative;
+  z-index: 1;
+  width: 100%;
+  height: 100%;
+  display: flex;
+  flex-direction: column;
+  justify-content: space-between;
+  align-items: center;
+  will-change: transform;
+}
+
+/* ── Hero content ─────────────────────────────────────── */
+
+.hero-content {
+  padding: 3rem 1.5rem 0;
+  text-align: center;
+  max-width: 768px;
+  width: 100%;
+}
+
+.hero-content h1 {
+  color: #fafafa;
+  font-weight: 600;
+  font-size: clamp(2rem, 5vw, 3.5rem);
+  line-height: 1.15;
+  text-wrap: balance;
+  letter-spacing: -0.01em;
+  margin-bottom: 0.75rem;
+  animation: hero-fade-up 0.9s cubic-bezier(0.16, 1, 0.3, 1) both;
+}
+
+.hero-content p {
+  color: rgba(250, 250, 250, 0.85);
+  font-size: clamp(1rem, 2vw, 1.125rem);
+  line-height: 1.6;
+  text-wrap: balance;
+  animation: hero-fade-up 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.12s both;
+}
+
+/* ── Scroll arrow ─────────────────────────────────────── */
+
+.hero-scroll {
+  padding-bottom: 2rem;
+  color: rgba(250, 250, 250, 0.75);
+  animation: hero-fade-in 0.6s ease 0.5s both;
+}
+
+.hero-scroll-icon {
+  display: block;
+  animation: hero-bounce 2s ease-in-out 1.1s infinite;
+}
+
+.hero-scroll svg {
+  width: 2rem;
+  height: 2rem;
+  display: block;
+}
+
+/* ── Intro text section ───────────────────────────────── */
+
+.home-intro {
+  max-width: 640px;
+  margin: 0 auto 4rem;
+  padding: 0 1.5rem;
+  text-align: center;
+}
+
+.home-intro .prose p {
+  color: var(--text-1);
+  font-size: 1.0625rem;
+  line-height: 1.75;
+  margin-top: 1em;
+  margin-bottom: 1em;
+}
+
+.home-intro .prose p:first-child {
+  margin-top: 0;
+}
+
+/* ── Keyframes ────────────────────────────────────────── */
+
+@keyframes hero-fade-up {
+  from {
+    opacity: 0;
+    transform: translateY(1.25rem);
+  }
+  to {
+    opacity: 1;
+    transform: translateY(0);
+  }
+}
+
+@keyframes hero-fade-in {
+  from { opacity: 0; }
+  to   { opacity: 1; }
+}
+
+@keyframes hero-bounce {
+  0%, 100% { transform: translateY(0); }
+  50%       { transform: translateY(7px); }
+}