@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;700&display=swap');

:root {
  --color-primary: #f8f8f8;
  --color-secondary: #e5e5e5;
  --color-accent: #d4d4d4;
  --color-text-primary: #1a1a1a;
  --color-text-secondary: #666666;
  --color-text-muted: #999999;
  --font-primary: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  color: var(--color-text-primary);
  background-color: var(--color-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.nav-glass {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.hover-scale {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-scale:hover {
  transform: scale(1.02);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

.fade-in {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.8s ease forwards;
}

@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.lazy-load {
  opacity: 0;
  transition: opacity 0.3s ease;
}

.lazy-load.loaded {
  opacity: 1;
}

.text-link {
  position: relative;
  transition: color 0.3s ease;
}

.text-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-text-primary);
  transition: width 0.3s ease;
}

.text-link:hover::after {
  width: 100%;
}

.collection-card {
  transition: var(--transition-smooth);
}

.collection-card:hover .card-overlay {
  opacity: 1;
}

.card-overlay {
  opacity: 0;
  transition: opacity 0.3s ease;
}

.image-container {
  overflow: hidden;
}

.image-container img {
  transition: transform 0.5s ease;
}

.image-container:hover img {
  transform: scale(1.05);
}

.masonry-grid {
  column-count: 1;
  column-gap: 1rem;
}

@media (min-width: 640px) {
  .masonry-grid {
    column-count: 2;
  }
}

@media (min-width: 1024px) {
  .masonry-grid {
    column-count: 3;
  }
}

.masonry-item {
  break-inside: avoid;
  margin-bottom: 1rem;
}

.hero-gradient {
  background: linear-gradient(135deg, rgba(248, 248, 248, 0.9) 0%, rgba(229, 229, 229, 0.9) 100%);
}

.mobile-menu {
  transform: translateX(-100%);
  transition: transform 0.3s ease;
}

.mobile-menu.active {
  transform: translateX(0);
}

.loading-skeleton {
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: loading 1.5s infinite;
}

@keyframes loading {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}