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

body {
  background: #0a0a0a;
  color: #fff;
  font-family: system-ui, sans-serif;
}

/* Home */
.home { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.hero { position: relative; width: 100vw; height: 100vh; }
.hero-img { width: 100%; height: 100%; object-fit: cover; }
.hero-btn {
  position: absolute; bottom: 10%; left: 50%; transform: translateX(-50%);
  padding: 1rem 2.5rem; background: #fff; color: #000;
  text-decoration: none; font-weight: 700; font-size: 1.1rem;
}

/* Filter Bar */
.filters {
  display: flex; flex-wrap: wrap; gap: 0.8rem;
  padding: 2rem; justify-content: center;
}
.filter-btn {
  padding: 0.5rem 1.2rem; background: transparent;
  border: 1px solid #333; color: #aaa; cursor: pointer;
  border-radius: 4px; font-size: 0.9rem;
}
.filter-btn.active { background: #fff; color: #000; border-color: #fff; }

/* Grid */
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1rem; padding: 0 2rem 2rem;
}
.gallery-item {
  width: 100%; aspect-ratio: 1; object-fit: cover;
  cursor: pointer; transition: opacity 0.2s;
}
.gallery-item:hover { opacity: 0.8; }
.is-hidden { display: none; }

/* Archive Link */
.archive-link { text-align: center; padding: 3rem; }
.archive-link a { color: #aaa; text-decoration: none; font-size: 1rem; }
.archive-link a:hover { color: #fff; }

/* Lightbox */
.lightbox {
  display: none; position: fixed; inset: 0;
  background: rgba(0,0,0,0.95); z-index: 1000;
  align-items: center; justify-content: center;
}
.lightbox.active { display: flex; }
.lightbox-img {
  max-width: 90vw; max-height: 90vh; object-fit: contain;
}
.lightbox-close {
  position: absolute; top: 1.5rem; right: 2rem;
  font-size: 2.5rem; cursor: pointer; color: #fff;
}
.lightbox-prev, .lightbox-next {
  position: absolute; top: 50%; transform: translateY(-50%);
  font-size: 3rem; cursor: pointer; color: #fff; user-select: none;
}
.lightbox-prev { left: 2rem; }
.lightbox-next { right: 2rem; }