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

:root {
  --color-cement: #2F2F2F;
  --color-bone: #F5F1E8;
  --color-silver: #C0C0C0;
  --color-deep-blue: #003B5C;
}

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

body {
  font-family: 'Noto Sans SC', sans-serif;
  background-color: var(--color-bone);
  color: var(--color-cement);
  line-height: 1.6;
}

h1, h2, h3 {
  font-weight: 700;
}

.parallax {
  will-change: transform;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fadeInUp {
  animation: fadeInUp 0.8s ease-out;
}

@keyframes buttonFill {
  from {
    background-color: transparent;
  }
  to {
    background-color: var(--color-cement);
  }
}

.btn-fill {
  transition: all 0.3s ease;
}

.btn-fill:hover {
  background-color: var(--color-cement);
  color: var(--color-bone);
}

.lazy-load {
  filter: blur(5px);
  transition: filter 0.3s;
}

.lazy-load.loaded {
  filter: blur(0);
}

.hover-card {
  transition: all 0.3s ease;
}

.hover-card:hover {
  transform: translateY(-5px);
  filter: brightness(1.2);
}

.hover-card:hover .material-tag {
  opacity: 1;
}

.material-tag {
  opacity: 0;
  transition: opacity 0.3s ease;
  background: var(--color-cement);
  color: var(--color-bone);
  padding: 0.25rem 0.5rem;
  position: absolute;
  bottom: 10px;
  left: 10px;
  font-size: 0.875rem;
}

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

.carousel-track {
  display: flex;
  transition: transform 0.5s ease;
}

.carousel-slide {
  min-width: 100%;
}

.timeline-item {
  opacity: 0;
  transform: translateX(-50px);
  transition: all 0.5s ease;
}

.timeline-item.visible {
  opacity: 1;
  transform: translateX(0);
}

.scroll-indicator {
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-10px);
  }
  60% {
    transform: translateY(-5px);
  }
}