.tour-images {
  margin-top: 20px;
}

.images-title {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
  margin-bottom: 8px;
}

.image-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  /* Hairline gaps: the set reads as one contact sheet. */
  gap: 1px;
  margin-bottom: 10px;
}

.image-tile {
  position: relative;
  margin: 0;
  min-width: 0;
  animation: image-tile-in 0.5s ease-out backwards;
}

@keyframes image-tile-in {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Shimmers until the photo paints over it; an error replaces the whole tile. */
.image-thumb {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 6px;
  cursor: pointer;
  display: block;
  background: linear-gradient(
    100deg,
    var(--color-surface-2) 40%,
    var(--color-surface) 50%,
    var(--color-surface-2) 60%
  );
  background-size: 200% 100%;
  animation: image-thumb-shimmer 1.4s ease-in-out infinite;
}

.image-thumb.is-loaded {
  animation: none;
  background: none;
}

@keyframes image-thumb-shimmer {
  from {
    background-position: 200% 0;
  }
  to {
    background-position: -200% 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .image-tile {
    animation: none;
  }

  .image-thumb {
    animation: none;
  }
}

.image-delete {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 22px;
  height: 22px;
  border: none;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.6);
  color: #fff;
  font-size: 12px;
  line-height: 1;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.15s;
}

/* A 44x44 tap target (WCAG 2.5.5) around the 22x22 circle. */
.image-delete::before,
.image-tile-retry::before,
.image-tile-dismiss::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 44px;
  height: 44px;
  transform: translate(-50%, -50%);
}

.image-tile:hover .image-delete,
.image-delete:focus-visible {
  opacity: 1;
}

.image-delete:hover {
  background: var(--color-danger);
}

/* Touch devices can't hover, so the button always shows there. */
@media (hover: none) {
  .image-delete {
    opacity: 1;
  }
}

.dropzone-sm {
  padding: 14px 12px;
}

.image-tile-pending,
.image-tile-error {
  aspect-ratio: 1 / 1;
  border-radius: 6px;
  background: var(--color-surface-2);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 6px;
  text-align: center;
}

.image-tile-error {
  border: 1px solid var(--color-danger);
}

.image-progress-ring {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: conic-gradient(
    var(--color-primary) calc(var(--progress, 0) * 1%),
    var(--color-border) 0
  );
}

.image-tile-filename {
  font-size: 10px;
  color: var(--color-text-muted);
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.image-tile-error-message {
  font-size: 10px;
  color: var(--color-danger-text);
}

.image-tile-actions {
  display: flex;
  gap: 6px;
}

.image-tile-retry,
.image-tile-dismiss {
  position: relative;
  width: 22px;
  height: 22px;
  border: none;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.6);
  color: #fff;
  font-size: 12px;
  line-height: 1;
  cursor: pointer;
}

.image-tile-dismiss:hover {
  background: var(--color-danger);
}

/* The page's own surface, so the photo's colours are the only strong ones on screen. */
.lightbox {
  position: fixed;
  inset: 0;
  /* Above .navbar (1100) and the mobile .detail-panel (700). */
  z-index: 1700;
  display: flex;
  flex-direction: column;
  background: color-mix(in srgb, var(--color-bg) 95%, transparent);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
}

/* Room at the top, so the buttons never sit on a tall photo's edge. */
.lightbox-stage {
  flex: 1;
  min-height: 0;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 72px 16px 16px;
  cursor: zoom-out;
  /* The lightbox handles horizontal swipes itself (ui/lightbox.js). */
  touch-action: none;
}

.lightbox-stage img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5);
  cursor: zoom-out;
}

.lightbox-error {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  color: var(--color-text);
  text-align: center;
  cursor: default;
}

/* Solid, theme-matched circles stay legible on any photo in either theme. */
.lightbox-icon-btn,
.lightbox-nav-btn {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: 50%;
  background: var(--color-surface);
  color: var(--color-text);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.25);
  cursor: pointer;
}

.lightbox-icon-btn:hover,
.lightbox-nav-btn:hover {
  background: var(--color-surface-2);
}

.lightbox-icon-btn svg,
.lightbox-nav-btn svg {
  width: 20px;
  height: 20px;
}

.lightbox-icon-btn {
  position: absolute;
  top: max(12px, env(safe-area-inset-top));
  z-index: 1;
}

.lightbox-delete {
  left: max(12px, env(safe-area-inset-left));
  color: var(--color-danger);
}

.lightbox-close {
  right: max(12px, env(safe-area-inset-right));
}

/* A bar below the photo: swiping alone isn't discoverable, and nothing covers the photo. */
.lightbox-navbar {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  padding: 12px 16px calc(12px + env(safe-area-inset-bottom));
}

.lightbox-counter {
  min-width: 56px;
  text-align: center;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-muted);
  font-variant-numeric: tabular-nums;
}