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

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

:root {
  --color-primary: #1a1a1a;
  --color-secondary: #4a5568;
  --color-accent-blue: #2c5282;
  --color-accent-brown: #9c6644;
  --color-bg: #ffffff;
  --color-text: #1a1a1a;
  --color-text-light: #718096;
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
  font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-weight: 300;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow-x: hidden;
}

.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: var(--transition-smooth);
}

.fade-in.active {
  opacity: 1;
  transform: translateY(0);
}

.hover-scale {
  transition: var(--transition-smooth);
}

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

.overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.6) 100%);
  opacity: 0;
  transition: var(--transition-smooth);
}

.overlay.active {
  opacity: 1;
}

.masonry-grid {
  column-count: 1;
  column-gap: 1.5rem;
}

@media (min-width: 768px) {
  .masonry-grid {
    column-count: 2;
  }
}

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

.masonry-item {
  break-inside: avoid;
  margin-bottom: 1.5rem;
  position: relative;
  overflow: hidden;
  border-radius: 0.5rem;
  cursor: pointer;
}

.masonry-item img {
  width: 100%;
  height: auto;
  display: block;
  transition: var(--transition-smooth);
}

.masonry-item:hover img {
  transform: scale(1.08);
}

.masonry-item .caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 1.5rem;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
  color: white;
  opacity: 0;
  transform: translateY(20px);
  transition: var(--transition-smooth);
}

.masonry-item:hover .caption {
  opacity: 1;
  transform: translateY(0);
}

.anchor-nav {
  position: fixed;
  right: 2rem;
  top: 50%;
  transform: translateY(-50%);
  z-index: 40;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.anchor-nav a {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-text-light);
  transition: var(--transition-smooth);
  display: block;
}

.anchor-nav a:hover,
.anchor-nav a.active {
  background: var(--color-accent-blue);
  transform: scale(1.3);
}

.carousel-container {
  position: relative;
  height: 100vh;
  overflow: hidden;
}

.carousel-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1s ease-in-out;
}

.carousel-slide.active {
  opacity: 1;
}

.carousel-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.section-title {
  font-weight: 300;
  letter-spacing: 0.05em;
  margin-bottom: 2rem;
}

.text-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.3);
  z-index: 10;
}

.smooth-scroll {
  scroll-behavior: smooth;
}

@media (max-width: 768px) {
  .anchor-nav {
    display: none;
  }
}

.loading-placeholder {
  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;
  }
}