/* ========== Reset & Variables ========== */
:root {
  --bg: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-card: #1a1a28;
  --text: #e0e0e0;
  --text-secondary: #a0a0b0;
  --accent: #6c5ce7;
  --accent-light: #a78bfa;
  --accent-glow: rgba(108,92,231,0.3);
  --gold: #f0c060;
  --gold-glow: rgba(240,192,96,0.25);
  --border: #2a2a3a;
  --radius: 12px;
  --radius-lg: 20px;
  --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
  --font-cn: "PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-display: "PingFang SC","Microsoft YaHei","Noto Serif SC",serif;
  --max-width: 1280px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-cn);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

a { color: var(--accent-light); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--gold); }

img { max-width: 100%; height: auto; display: block; }

/* ========== Navigation ========== */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(10,10,15,0.85); backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}
.nav-inner {
  max-width: var(--max-width); margin: 0 auto;
  padding: 0 24px; height: 64px;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo { font-size: 1.4rem; font-weight: 700; color: #fff; letter-spacing: 2px; }
.nav-logo span { color: var(--accent-light); }
.nav-links { display: flex; gap: 32px; list-style: none; }
.nav-links a { color: var(--text-secondary); font-size: 0.9rem; font-weight: 500; letter-spacing: 1px; position: relative; }
.nav-links a::after {
  content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 2px;
  background: var(--accent-light); transition: width var(--transition);
}
.nav-links a:hover { color: #fff; }
.nav-links a:hover::after { width: 100%; }
.nav-toggle { display: none; background: none; border: none; color: #fff; font-size: 1.5rem; cursor: pointer; }

/* ========== Hero ========== */
.hero {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden; padding: 120px 24px 80px;
}
.hero-bg {
  position: absolute; top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(ellipse at 30% 20%, var(--accent-glow) 0%, transparent 60%),
              radial-gradient(ellipse at 70% 60%, var(--gold-glow) 0%, transparent 50%),
              radial-gradient(ellipse at 50% 80%, rgba(108,92,231,0.08) 0%, transparent 40%);
}
.hero-particles { position: absolute; top: 0; left: 0; right: 0; bottom: 0; overflow: hidden; }
.hero-particle {
  position: absolute; width: 2px; height: 2px; background: var(--accent-light);
  border-radius: 50%; animation: float 8s infinite ease-in-out; opacity: 0.4;
}
@keyframes float {
  0%,100% { transform: translateY(0) translateX(0); }
  25% { transform: translateY(-60px) translateX(20px); }
  50% { transform: translateY(-20px) translateX(-20px); }
  75% { transform: translateY(-80px) translateX(10px); }
}
.hero-content { position: relative; z-index: 1; text-align: center; max-width: 800px; }
.hero-avatar {
  width: 120px; height: 120px; border-radius: 50%; margin: 0 auto 32px;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  display: flex; align-items: center; justify-content: center; font-size: 3rem;
  box-shadow: 0 0 60px var(--accent-glow);
}
.hero h1 { font-size: clamp(2.4rem, 5vw, 3.8rem); font-weight: 800; color: #fff; letter-spacing: 4px; margin-bottom: 16px; }
.hero h1 .highlight { background: linear-gradient(135deg, var(--accent-light), var(--gold)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.hero .subtitle { font-size: 1.15rem; color: var(--text-secondary); letter-spacing: 6px; margin-bottom: 12px; font-weight: 300; }
.hero .tagline { font-size: 1rem; color: var(--text-secondary); max-width: 560px; margin: 0 auto 40px; line-height: 1.8; }
.hero-tags { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; margin-bottom: 48px; }
.hero-tag {
  padding: 8px 20px; border-radius: 100px; font-size: 0.85rem; letter-spacing: 1px;
  background: var(--bg-card); border: 1px solid var(--border); color: var(--text-secondary);
  transition: var(--transition);
}
.hero-tag:hover { border-color: var(--accent); color: var(--accent-light); transform: translateY(-2px); }
.hero-scroll {
  position: absolute; bottom: 40px; left: 50%; transform: translateX(-50%);
  color: var(--text-secondary); font-size: 0.8rem; letter-spacing: 2px;
  display: flex; flex-direction: column; align-items: center; gap: 8px; animation: bounce 2s infinite;
}
.hero-scroll::after { content: ''; width: 1px; height: 40px; background: var(--border); }
@keyframes bounce { 0%,100% { transform: translateX(-50%) translateY(0); } 50% { transform: translateX(-50%) translateY(-10px); } }

/* ========== Section Common ========== */
.section { padding: 100px 24px; }
.section-inner { max-width: var(--max-width); margin: 0 auto; }
.section-label { font-size: 0.8rem; letter-spacing: 4px; color: var(--accent-light); text-transform: uppercase; margin-bottom: 8px; }
.section-title { font-size: clamp(1.8rem, 3.5vw, 2.6rem); font-weight: 700; color: #fff; margin-bottom: 16px; letter-spacing: 2px; }
.section-desc { color: var(--text-secondary); font-size: 1rem; max-width: 600px; margin-bottom: 56px; line-height: 1.8; }

/* ========== Filter ========== */
.filter-bar { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 48px; }
.filter-btn {
  padding: 10px 24px; border-radius: 100px; font-size: 0.85rem;
  background: transparent; border: 1px solid var(--border); color: var(--text-secondary);
  cursor: pointer; transition: var(--transition); letter-spacing: 1px; font-family: var(--font-cn);
}
.filter-btn:hover, .filter-btn.active {
  border-color: var(--accent); color: #fff; background: var(--accent);
  box-shadow: 0 4px 20px var(--accent-glow);
}

/* ========== Portfolio Grid ========== */
.portfolio-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(360px, 1fr)); gap: 24px; }
.portfolio-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg);
  overflow: hidden; cursor: pointer; transition: var(--transition); position: relative;
}
.portfolio-card:hover { border-color: var(--accent); transform: translateY(-6px); box-shadow: 0 20px 60px rgba(0,0,0,0.4); }
.card-thumb { width: 100%; height: 220px; object-fit: cover; background: var(--bg-secondary); }
.card-thumb-placeholder {
  width: 100%; height: 220px; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--bg-card), var(--bg-secondary));
  font-size: 3rem; color: var(--border);
}
.card-body { padding: 20px 24px 24px; }
.card-category { font-size: 0.75rem; letter-spacing: 2px; color: var(--accent-light); margin-bottom: 6px; text-transform: uppercase; }
.card-title { font-size: 1.1rem; font-weight: 600; color: #fff; margin-bottom: 8px; }
.card-desc { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.card-badge {
  position: absolute; top: 16px; right: 16px; padding: 4px 12px; border-radius: 100px;
  font-size: 0.7rem; letter-spacing: 1px; background: rgba(0,0,0,0.7); color: var(--gold);
  backdrop-filter: blur(10px);
}

/* ========== Video Section ========== */
.video-showcase { display: grid; grid-template-columns: repeat(auto-fill, minmax(400px, 1fr)); gap: 32px; }
.video-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg);
  overflow: hidden; transition: var(--transition);
}
.video-card:hover { border-color: var(--accent); }
.video-card video { width: 100%; display: block; background: #000; border-radius: var(--radius-lg) var(--radius-lg) 0 0; }
.video-info { padding: 20px 24px; }
.video-info h3 { font-size: 1.05rem; font-weight: 600; color: #fff; margin-bottom: 6px; }
.video-info p { font-size: 0.85rem; color: var(--text-secondary); }

/* ========== Lightbox / Modal ========== */
.modal-overlay {
  position: fixed; top: 0; left: 0; right: 0; bottom: 0; z-index: 9999;
  background: rgba(0,0,0,0.92); backdrop-filter: blur(8px);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none; transition: opacity var(--transition);
}
.modal-overlay.active { opacity: 1; pointer-events: auto; }
.modal-content {
  position: relative; max-width: 90vw; max-height: 90vh;
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg);
  overflow: hidden; display: flex; flex-direction: column;
}
.modal-content img, .modal-content video { max-width: 90vw; max-height: 75vh; object-fit: contain; }
.modal-info { padding: 20px 28px; }
.modal-info h3 { font-size: 1.2rem; color: #fff; margin-bottom: 6px; }
.modal-info p { font-size: 0.9rem; color: var(--text-secondary); }
.modal-close {
  position: absolute; top: 12px; right: 16px; width: 40px; height: 40px;
  border-radius: 50%; background: rgba(0,0,0,0.6); border: none; color: #fff;
  font-size: 1.3rem; cursor: pointer; display: flex; align-items: center; justify-content: center;
  transition: var(--transition); z-index: 10;
}
.modal-close:hover { background: var(--accent); }
.modal-nav {
  position: absolute; top: 50%; transform: translateY(-50%); width: 48px; height: 48px;
  border-radius: 50%; background: rgba(0,0,0,0.6); border: none; color: #fff;
  font-size: 1.5rem; cursor: pointer; display: flex; align-items: center; justify-content: center;
  transition: var(--transition);
}
.modal-nav:hover { background: var(--accent); }
.modal-prev { left: 16px; }
.modal-next { right: 16px; }

/* ========== Document Cards ========== */
.doc-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px; }
.doc-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px; transition: var(--transition); cursor: pointer; text-align: center;
}
.doc-card:hover { border-color: var(--accent); transform: translateY(-4px); box-shadow: 0 12px 40px rgba(0,0,0,0.3); }
.doc-icon { font-size: 2.8rem; margin-bottom: 16px; }
.doc-card h3 { font-size: 1rem; color: #fff; margin-bottom: 6px; }
.doc-card p { font-size: 0.8rem; color: var(--text-secondary); }
.doc-type { display: inline-block; padding: 3px 12px; border-radius: 100px; font-size: 0.7rem; letter-spacing: 1px; background: rgba(108,92,231,0.15); color: var(--accent-light); margin-top: 12px; }

/* ========== Image Gallery ========== */
.gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; }
.gallery-item {
  border-radius: var(--radius); overflow: hidden; cursor: pointer; position: relative;
  aspect-ratio: 4/3; background: var(--bg-card); border: 1px solid var(--border);
  transition: var(--transition);
}
.gallery-item:hover { border-color: var(--accent); transform: scale(1.03); z-index: 2; }
.gallery-item img { width: 100%; height: 100%; object-fit: cover; }

/* ========== Video Large Placeholder ========== */
.video-placeholder {
  background: linear-gradient(135deg, #1a1a2e, #16213e); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 40px 24px; text-align: center;
  display: flex; flex-direction: column; align-items: center; gap: 16px;
}
.video-placeholder .play-icon {
  width: 64px; height: 64px; border-radius: 50%; background: var(--accent);
  display: flex; align-items: center; justify-content: center; font-size: 1.5rem;
  box-shadow: 0 0 30px var(--accent-glow);
}
.video-placeholder h3 { color: #fff; font-size: 1rem; }
.video-placeholder p { color: var(--text-secondary); font-size: 0.85rem; }
.video-placeholder .size-tag {
  padding: 4px 14px; border-radius: 100px; font-size: 0.75rem;
  background: rgba(240,192,96,0.15); color: var(--gold);
}

/* ========== About ========== */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.about-text p { color: var(--text-secondary); margin-bottom: 20px; font-size: 0.95rem; line-height: 1.9; }
.about-text .highlight-text { color: var(--accent-light); font-weight: 500; }
.skill-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.skill-tag {
  padding: 8px 18px; border-radius: 6px; font-size: 0.8rem; letter-spacing: 1px;
  background: rgba(108,92,231,0.1); border: 1px solid rgba(108,92,231,0.25); color: var(--accent-light);
}
.about-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.stat-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 32px 24px; text-align: center; transition: var(--transition);
}
.stat-card:hover { border-color: var(--accent); }
.stat-number { font-size: 2.4rem; font-weight: 800; color: #fff; background: linear-gradient(135deg, var(--accent-light), var(--gold)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.stat-label { font-size: 0.8rem; color: var(--text-secondary); margin-top: 4px; letter-spacing: 1px; }

/* ========== Category Cards (Main Page) ========== */
.category-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.category-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg);
  overflow: hidden; cursor: pointer; transition: var(--transition); position: relative;
  display: flex; flex-direction: column; text-decoration: none; color: inherit;
}
.category-card:hover {
  border-color: var(--accent); transform: translateY(-6px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}
.category-card-thumb {
  width: 100%; height: 200px; object-fit: cover; background: var(--bg-secondary);
}
.category-card-thumb.placeholder {
  display: flex; align-items: center; justify-content: center;
  font-size: 4rem; background: linear-gradient(135deg, rgba(108,92,231,0.15), rgba(240,192,96,0.08));
}
.category-card-thumb video {
  width: 100%; height: 100%; object-fit: cover; pointer-events: none;
}
.category-card-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.category-card-body .cat-icon { font-size: 1.5rem; margin-bottom: 8px; }
.category-card-body h3 { font-size: 1.15rem; font-weight: 700; color: #fff; margin-bottom: 6px; }
.category-card-body p { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.6; flex: 1; }
.category-card-body .cat-count {
  display: inline-block; margin-top: 12px; font-size: 0.75rem; letter-spacing: 1px;
  color: var(--accent-light);
}
.category-card-featured {
  margin-top: 12px; padding: 12px 16px; background: rgba(108,92,231,0.08);
  border-radius: var(--radius); border-left: 2px solid var(--accent);
}
.category-card-featured .feat-label { font-size: 0.7rem; letter-spacing: 1px; color: var(--accent-light); }
.category-card-featured .feat-title { font-size: 0.85rem; color: #fff; margin-top: 2px; }
.category-card-featured .feat-desc { font-size: 0.75rem; color: var(--text-secondary); margin-top: 2px; }

/* ========== Category Sub-Page ========== */
.nav-back-btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 18px; border-radius: 100px;
  border: 1px solid var(--accent); color: var(--accent-light);
  font-size: 0.82rem; letter-spacing: 1px; text-decoration: none;
  transition: var(--transition);
  background: rgba(108,92,231,0.1);
}
.nav-back-btn:hover {
  background: var(--accent); color: #fff;
  box-shadow: 0 0 20px var(--accent-glow);
}
.nav-back-btn .back-arrow { font-size: 1rem; transition: var(--transition); }
.nav-back-btn:hover .back-arrow { transform: translateX(-2px); }

.back-btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 24px; border-radius: 100px;
  border: 1px solid var(--accent); color: var(--accent-light);
  font-size: 0.9rem; letter-spacing: 1px; text-decoration: none;
  transition: var(--transition); margin-bottom: 32px;
  background: rgba(108,92,231,0.08);
}
.back-btn:hover {
  background: var(--accent); color: #fff;
  box-shadow: 0 4px 20px var(--accent-glow);
  transform: translateX(-4px);
}
.back-btn .back-arrow { font-size: 1.1rem; transition: var(--transition); }
.back-btn:hover .back-arrow { transform: translateX(-3px); }

.cat-header { margin-bottom: 48px; }
.cat-header .cat-icon { font-size: 3rem; margin-bottom: 12px; }
.cat-header h2 { font-size: clamp(1.8rem, 4vw, 2.6rem); font-weight: 700; color: #fff; letter-spacing: 2px; }
.cat-header p { color: var(--text-secondary); font-size: 1rem; margin-top: 8px; line-height: 1.8; max-width: 600px; }

.cat-group { margin-bottom: 48px; }
.cat-group-label {
  font-size: 0.85rem; letter-spacing: 3px; color: var(--accent-light);
  padding-bottom: 12px; border-bottom: 1px solid var(--border); margin-bottom: 24px;
}

.cat-item-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}
.cat-item-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; cursor: pointer; transition: var(--transition);
}
.cat-item-card:hover { border-color: var(--accent); transform: translateY(-4px); }
.cat-item-thumb {
  width: 100%; height: 200px; object-fit: cover; background: var(--bg-secondary);
  display: flex; align-items: center; justify-content: center;
}
.cat-item-thumb video { width: 100%; height: 100%; object-fit: cover; pointer-events: none; }
.cat-item-thumb .thumb-icon { font-size: 3rem; }
.cat-item-info { padding: 16px 20px; }
.cat-item-info h4 { font-size: 0.95rem; font-weight: 600; color: #fff; margin-bottom: 4px; }
.cat-item-info p { font-size: 0.8rem; color: var(--text-secondary); }

.cat-item-gallery { position: relative; }

/* Gallery Grid View (in modal) */
.gallery-grid-view {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding: 16px;
  max-height: 70vh;
  overflow-y: auto;
  max-width: 85vw;
  align-items: flex-start;
}
.gallery-grid-cell {
  width: calc(33.333% - 8px);
  display: flex;
  flex-direction: column;
  gap: 12px;
  border-radius: var(--radius);
}
.gallery-grid-item {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
}
.gallery-grid-item.single { flex: 1; }
.gallery-grid-item.pair { flex: 1; }
.gallery-grid-item img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
  min-height: 120px;
}

.gallery-badge {
  position: absolute; top: 12px; right: 12px;
  padding: 5px 14px; border-radius: 100px;
  font-size: 0.75rem; letter-spacing: 1px;
  background: var(--accent); color: #fff;
  box-shadow: 0 2px 12px var(--accent-glow);
}

.cat-item-placeholder {
  background: linear-gradient(135deg, #1a1a2e, #16213e); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 32px 24px; text-align: center;
  display: flex; flex-direction: column; align-items: center; gap: 12px;
}
.cat-item-placeholder .ph-icon {
  width: 56px; height: 56px; border-radius: 50%; background: var(--accent);
  display: flex; align-items: center; justify-content: center; font-size: 1.3rem;
  box-shadow: 0 0 25px var(--accent-glow);
}
.cat-item-placeholder h4 { color: #fff; font-size: 0.95rem; }
.cat-item-placeholder p { color: var(--text-secondary); font-size: 0.8rem; }
.cat-item-placeholder .size-tag {
  padding: 4px 14px; border-radius: 100px; font-size: 0.75rem;
  background: rgba(240,192,96,0.15); color: var(--gold);
}

.cat-doc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}
.cat-doc-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; transition: var(--transition); text-decoration: none; color: inherit;
  display: flex; flex-direction: column; align-items: center; text-align: center; gap: 8px;
}
.cat-doc-card:hover { border-color: var(--accent); transform: translateY(-4px); }
.cat-doc-card .doc-icon { font-size: 2.4rem; }
.cat-doc-card h4 { font-size: 0.9rem; color: #fff; }
.cat-doc-card p { font-size: 0.78rem; color: var(--text-secondary); }
.cat-doc-card .doc-type {
  display: inline-block; padding: 3px 12px; border-radius: 100px; font-size: 0.7rem;
  letter-spacing: 1px; background: rgba(108,92,231,0.15); color: var(--accent-light); margin-top: 4px;
}

/* ========== Contact ========== */
.contact { text-align: center; }
.contact-links { display: flex; gap: 20px; justify-content: center; flex-wrap: wrap; margin-top: 32px; }
.contact-link {
  padding: 14px 32px; border-radius: 100px; font-size: 0.9rem; letter-spacing: 1px;
  border: 1px solid var(--border); color: var(--text); transition: var(--transition);
  display: flex; align-items: center; gap: 8px;
}
.contact-link:hover { border-color: var(--accent); color: var(--accent-light); background: var(--bg-card); }

/* ========== Footer ========== */
.footer { padding: 40px 24px; border-top: 1px solid var(--border); text-align: center; }
.footer p { color: var(--text-secondary); font-size: 0.8rem; letter-spacing: 1px; }

/* ========== Responsive ========== */
@media (max-width: 768px) {
  .nav-links { display: none; position: absolute; top: 64px; left: 0; right: 0;
    background: var(--bg); flex-direction: column; padding: 24px; gap: 16px;
    border-bottom: 1px solid var(--border);
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .category-grid { grid-template-columns: 1fr; }
  .cat-item-grid { grid-template-columns: 1fr; }
  .cat-doc-grid { grid-template-columns: 1fr; }
  .video-showcase { grid-template-columns: 1fr; }
  .gallery { grid-template-columns: repeat(2, 1fr); }
  .about-stats { grid-template-columns: 1fr 1fr; }
  .modal-content { max-width: 95vw; }
  .modal-nav { width: 36px; height: 36px; font-size: 1.2rem; }
  .gallery-grid-cell { width: calc(50% - 6px); }
  .gallery-grid-view { max-width: 95vw; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 1.8rem; letter-spacing: 2px; }
  .section { padding: 60px 16px; }
  .filter-bar { gap: 6px; }
  .filter-btn { padding: 8px 16px; font-size: 0.75rem; }
  .gallery { grid-template-columns: 1fr 1fr; gap: 8px; }
  .category-grid { grid-template-columns: 1fr; }
  .cat-item-grid { grid-template-columns: 1fr; }
  .gallery-grid-cell { width: 100%; }
}