:root {
  --bg: #0f0e0c;
  --bg-soft: #1a1814;
  --fg: #ece6da;
  --fg-dim: #9a9080;
  --accent: #d9b382;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  min-height: 100vh;
}

.topbar {
  padding: 48px 32px 16px;
  text-align: center;
}
.topbar h1 {
  font-size: 2.4rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin: 0;
  font-weight: 400;
}
.tagline {
  color: var(--fg-dim);
  font-style: italic;
  margin: 8px 0 0;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 28px;
  padding: 32px clamp(16px, 4vw, 64px) 80px;
  max-width: 1400px;
  margin: 0 auto;
}

.stone-card {
  position: relative;
  aspect-ratio: 1 / 1;
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  background: var(--bg-soft);
  box-shadow: var(--shadow);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.stone-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6);
}

/* The generated "sophisticated blur" variant fills the card */
.stone-card .card-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
  transition: transform 0.4s ease;
}
.stone-card:hover .card-img { transform: scale(1.04); }

.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--fg-dim);
  padding: 80px 0;
  font-size: 1.05rem;
}
.empty-state .hint { font-size: 0.85rem; line-height: 1.8; }
.empty-state code {
  background: var(--bg-soft);
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 0.8rem;
}

.stone-card .label {
  position: absolute;
  bottom: 10px;
  left: 12px;
  z-index: 2;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg);
  opacity: 0.85;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.6);
}

/* ----------- Lightbox ----------- */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(8, 7, 6, 0.92);
  z-index: 100;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  justify-content: center;
  padding: 32px;
  backdrop-filter: blur(6px);
}
.lightbox[hidden] { display: none; }

.lightbox-close {
  position: absolute;
  top: 16px;
  right: 20px;
  background: transparent;
  border: none;
  color: var(--fg);
  font-size: 2rem;
  cursor: pointer;
  opacity: 0.7;
}
.lightbox-close:hover { opacity: 1; }

.lightbox-title {
  text-align: center;
  margin: 0 0 14px;
  font-weight: 400;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 1.1rem;
  color: var(--fg);
}

.slider {
  position: relative;
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  max-height: calc(100vh - 220px);
}

.slider-track {
  display: flex;
  width: 100%;
  height: 100%;
  transition: transform 0.45s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.slide {
  flex: 0 0 100%;
  height: 100%;
  position: relative;
  display: grid;
  place-items: center;
  overflow: hidden;
  border-radius: var(--radius);
}
.slide .slide-img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.slide .caption {
  position: absolute;
  bottom: 18px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  color: var(--fg);
  font-style: italic;
  opacity: 0.85;
  font-size: 0.95rem;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.7);
  text-align: center;
  max-width: 80%;
}
.variant-tag {
  display: inline-block;
  background: rgba(0, 0, 0, 0.55);
  color: var(--accent);
  font-style: normal;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 999px;
  margin-right: 8px;
  vertical-align: middle;
}

.slider-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 4;
  background: rgba(0, 0, 0, 0.35);
  color: var(--fg);
  border: none;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  font-size: 1.1rem;
  cursor: pointer;
  opacity: 0.7;
}
.slider-nav:hover { opacity: 1; }
.slider-nav.prev { left: 12px; }
.slider-nav.next { right: 12px; }

.dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  padding: 14px 0 8px;
}
.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.25);
  border: none;
  cursor: pointer;
  padding: 0;
  transition: background 0.2s;
}
.dot.active { background: var(--accent); }

@media (max-width: 600px) {
  .topbar { padding: 28px 16px 8px; }
  .topbar h1 { font-size: 1.6rem; }
  .lightbox { padding: 16px; }
  .slider-nav { width: 36px; height: 36px; }
}