/**
 * gallery.css — Filmstrip gallery styles
 *
 * 35mm film aesthetic: sprocket holes, dark film base, frame numbers,
 * hover enlarge, edge fade gradients, entrance animation.
 */

/* === Filmstrip container === */
.filmstrip {
  position: relative;
  width: 100%;
  height: 70vh;
  min-height: 440px;
  max-height: 640px;
  display: flex;
  align-items: center;
  overflow: hidden;
  /* Edge fade gradients to hint at more content */
  mask-image: linear-gradient(to right, transparent 0%, black 6%, black 94%, transparent 100%);
  -webkit-mask-image: linear-gradient(to right, transparent 0%, black 6%, black 94%, transparent 100%);
}

/* === Track (translated horizontally) === */
.filmstrip__track {
  display: flex;
  align-items: center;
  gap: 0;
  will-change: transform;
  padding: 0 8vw;
}

/* === Individual frame === */
.filmstrip__frame {
  flex-shrink: 0;
  width: 300px;
  background: #0d0a04;
  border-left: 3px solid #1a1610;
  border-right: 3px solid #1a1610;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  cursor: pointer;
  transition: z-index 0s;
}

/* Film base top/bottom strips with sprocket holes */
.filmstrip__sprockets {
  width: 100%;
  height: 32px;
  background: #0d0a04;
  display: flex;
  align-items: center;
  justify-content: space-evenly;
  padding: 0 14px;
  flex-shrink: 0;
}

/* Individual sprocket hole */
.filmstrip__sprocket-hole {
  width: 16px;
  height: 12px;
  border-radius: 2px;
  background: #1a1208;
  border: 1px solid #0a0804;
  flex-shrink: 0;
}

/* === Photo area === */
.filmstrip__photo-area {
  width: 264px;
  height: 370px;
  margin: 5px 0;
  overflow: hidden;
  position: relative;
  background: #0d0a04;
}

.filmstrip__photo-area img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: sepia(0.3) saturate(1.2) brightness(0.85);
  transition: filter 0.3s ease;
}

/* Gradient placeholder (no real photo yet) */
.filmstrip__placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  filter: sepia(0.3) saturate(1.2) brightness(0.85);
}

/* === Frame number === */
.filmstrip__frame-number {
  width: 100%;
  text-align: right;
  padding: 2px 10px 0;
  font-family: 'Courier New', monospace;
  font-size: 0.6rem;
  color: var(--color-accent, #c8902a);
  opacity: 0.35;
  letter-spacing: 0.1em;
  flex-shrink: 0;
  background: #0d0a04;
}

/* === Hover: enlarge in-place === */
/* Handled via GSAP for smooth animation, but base cursor hint */
.filmstrip__frame:hover {
  z-index: 10;
}

/* === Genre name — repositioned as film canister label === */
#gallery.gallery--filmstrip .gallery__genre-name {
  position: fixed;
  top: 2rem;
  right: 2rem;
  left: auto;
  margin: 0;
  font-size: clamp(0.8rem, 2vw, 1.1rem);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  opacity: 0.4;
  writing-mode: vertical-rl;
  text-orientation: mixed;
}

/* ===========================================
   LIGHTBOX
   Full-screen overlay for viewing images at full size.
   =========================================== */

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: rgba(0, 0, 0, 0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: zoom-out;
}

.lightbox__img {
  max-width: 90vw;
  max-height: 88vh;
  object-fit: contain;
  cursor: default;
  border-radius: 2px;
  box-shadow: 0 0 60px rgba(0, 0, 0, 0.6);
}

.lightbox__close {
  position: absolute;
  top: 1.2rem;
  right: 1.5rem;
  background: none;
  border: none;
  color: var(--color-text, #e8d5b0);
  font-size: 2.2rem;
  cursor: pointer;
  opacity: 0.6;
  transition: opacity 0.2s;
  line-height: 1;
  padding: 0.3rem;
  z-index: 10001;
}
.lightbox__close:hover {
  opacity: 1;
}

.lightbox__prev,
.lightbox__next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--color-text, #e8d5b0);
  font-size: 3rem;
  cursor: pointer;
  opacity: 0.5;
  transition: opacity 0.2s;
  padding: 1rem;
  z-index: 10001;
  line-height: 1;
}
.lightbox__prev { left: 1rem; }
.lightbox__next { right: 1rem; }
.lightbox__prev:hover,
.lightbox__next:hover {
  opacity: 1;
}

@media (max-width: 768px) {
  .lightbox__img {
    max-width: 96vw;
    max-height: 85vh;
  }
  .lightbox__prev,
  .lightbox__next {
    font-size: 2.2rem;
    padding: 0.6rem;
  }
}

/* === Gallery layout override for filmstrip mode === */
#gallery.gallery--filmstrip {
  align-items: center;
  justify-content: center;
  flex-direction: row;
}

/* ===========================================
   VERTICAL FILMSTRIP (drone genre)
   Film runs top-to-bottom, sprockets on left/right,
   landscape photo areas for horizontal images.
   =========================================== */

.filmstrip--vertical {
  width: auto;
  height: 100%;
  max-height: none;
  min-height: 0;
  flex-direction: column;
  align-items: center;
  /* Vertical edge fades */
  mask-image: linear-gradient(to bottom, transparent 0%, black 6%, black 94%, transparent 100%);
  -webkit-mask-image: linear-gradient(to bottom, transparent 0%, black 6%, black 94%, transparent 100%);
}

.filmstrip--vertical .filmstrip__track {
  flex-direction: column;
  padding: 8vh 0;
}

.filmstrip--vertical .filmstrip__frame {
  flex-direction: row;
  width: auto;
  border-left: none;
  border-right: none;
  border-top: 3px solid #1a1610;
  border-bottom: 3px solid #1a1610;
}

/* Sprockets run vertically on left/right edges */
.filmstrip--vertical .filmstrip__sprockets {
  width: 32px;
  height: 100%;
  flex-direction: column;
  justify-content: space-evenly;
  padding: 14px 0;
}

.filmstrip--vertical .filmstrip__sprocket-hole {
  width: 12px;
  height: 16px;
}

/* Landscape photo area for drone */
.filmstrip--vertical .filmstrip__photo-area {
  width: 420px;
  height: 280px;
  margin: 0 5px;
}

/* Frame number below photo area in vertical layout */
.filmstrip--vertical .filmstrip__frame-number {
  position: absolute;
  bottom: 4px;
  right: 42px;
  width: auto;
  background: transparent;
}

/* === Responsive === */
@media (max-width: 768px) {
  .filmstrip {
    height: 60vh;
    min-height: 360px;
  }
  .filmstrip__frame {
    width: 220px;
  }
  .filmstrip__photo-area {
    width: 190px;
    height: 270px;
  }
  .filmstrip__sprockets {
    height: 26px;
    padding: 0 10px;
  }
  .filmstrip__sprocket-hole {
    width: 13px;
    height: 10px;
  }
  #gallery.gallery--filmstrip .gallery__genre-name {
    writing-mode: horizontal-tb;
    top: 1.2rem;
    right: 1.2rem;
    font-size: 0.75rem;
  }
  /* Vertical responsive */
  .filmstrip--vertical .filmstrip__photo-area {
    width: 300px;
    height: 200px;
  }
  .filmstrip--vertical .filmstrip__sprockets {
    width: 26px;
  }
}

@media (max-width: 480px) {
  .filmstrip__frame {
    width: 180px;
  }
  .filmstrip__photo-area {
    width: 154px;
    height: 220px;
  }
  .filmstrip--vertical .filmstrip__photo-area {
    width: 240px;
    height: 160px;
  }
}