:root {
  --forest: #1f3329;
  --forest-soft: #2f4a3b;
  --stone: #edefe9;
  --stone-card: #f6f7f3;
  --ochre: #b98b4e;
  --ochre-dark: #9a7139;
  --ink: #20241f;
  --line: #d7d9cf;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--stone);
  color: var(--ink);
  font-family: "Inter", -apple-system, sans-serif;
  line-height: 1.5;
}

/* Header */
.header {
  background: var(--forest);
  color: var(--stone);
  padding: 4rem 1.5rem 3rem;
  text-align: center;
}

.eyebrow {
  margin: 0 0 0.75rem;
  font-size: 0.9rem;
  color: #b7c9bd;
  font-style: italic;
}

.header h1 {
  margin: 0;
  font-family: "Fraunces", serif;
  font-weight: 500;
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  letter-spacing: -0.01em;
}

.subtitle {
  margin: 0.5rem 0 0;
  font-size: 1.05rem;
  color: #cfe0d5;
}

/* Filters */
.filters {
  max-width: 1100px;
  margin: 2rem auto 0;
  padding: 0 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem 2.5rem;
}

.filter-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}

.filter-label {
  font-size: 0.85rem;
  color: var(--forest-soft);
  margin-right: 0.25rem;
  font-weight: 500;
}

.filter-btn {
  border: 1px solid var(--line);
  background: var(--stone-card);
  color: var(--ink);
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-family: inherit;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease, color 0.15s ease;
}

.filter-btn:hover {
  border-color: var(--ochre);
}

.filter-btn.active {
  background: var(--ochre);
  border-color: var(--ochre);
  color: #fff;
}

/* Gallery grid */
.gallery {
  max-width: 1100px;
  margin: 2.5rem auto;
  padding: 0 1.5rem;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
}

.image-item {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-radius: 6px;
  cursor: pointer;
  background: var(--stone-card);
  position: relative;
}

.image-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.35s ease;
}

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

.image-item.hidden {
  display: none;
}

.empty-state {
  text-align: center;
  color: var(--forest-soft);
  padding: 3rem 1rem 5rem;
  font-size: 1rem;
}

/* Lightbox */
.preview {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(15, 22, 17, 0.94);
  z-index: 100;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  padding: 2rem 1rem;
}

.preview.open {
  display: flex;
}

.preview img#preview-img {
  max-width: min(90vw, 1000px);
  max-height: 70vh;
  object-fit: contain;
  border-radius: 4px;
}

.preview-close {
  position: absolute;
  top: 1.25rem;
  right: 1.5rem;
  background: none;
  border: none;
  color: var(--stone);
  font-size: 2rem;
  line-height: 1;
  cursor: pointer;
}

.left-arrow, .right-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.08);
  border: none;
  color: var(--stone);
  font-size: 1.4rem;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 50%;
  cursor: pointer;
}

.left-arrow { left: 1rem; }
.right-arrow { right: 1rem; }

.left-arrow:hover, .right-arrow:hover {
  background: rgba(255, 255, 255, 0.18);
}

.image-details {
  margin-top: 1.25rem;
  text-align: center;
  color: #d9e0da;
  max-width: 600px;
}

.image-details p {
  margin: 0.15rem 0;
  font-size: 0.9rem;
}

#image-info {
  font-family: "Fraunces", serif;
  font-size: 1.1rem;
  color: var(--stone);
}

@media (max-width: 600px) {
  .header { padding: 3rem 1rem 2rem; }
  .gallery { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 0.6rem; }
}