.message-image-gallery {
  width: min(100%, 580px);
  margin-top: 10px;
}

.message-image-gallery-grid {
  display: grid;
  gap: 8px;
  width: 100%;
}

.message-image-gallery-grid--single {
  width: min(360px, 100%);
}

.message-image-gallery-grid--multiple {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
}

.message-image-gallery-item {
  box-sizing: border-box;
  min-width: 0;
  margin: 0;
  overflow: hidden;
  border: 1px solid #d7e3f3;
  border-radius: 8px;
  background: #e9eef5;
}

.message-image-gallery-grid--single .message-image-gallery-item {
  width: min(var(--message-image-preview-width, 360px), 100%);
  aspect-ratio: var(--message-image-aspect-ratio, 4 / 3);
}

.message-image-gallery-grid--multiple .message-image-gallery-item {
  flex: 0 0 auto;
  width: min(var(--message-image-preview-width, 280px), 100%);
  aspect-ratio: var(--message-image-aspect-ratio, 1 / 1);
}

.message-image-gallery-trigger {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  padding: 0;
  overflow: hidden;
  border: 0;
  color: inherit;
  background: transparent;
  cursor: pointer;
  touch-action: manipulation;
}

.message-image-gallery-grid--single .message-image-gallery-trigger,
.message-image-gallery-grid--multiple .message-image-gallery-trigger {
  height: 100%;
  aspect-ratio: auto;
}

.message-image-gallery-image {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center top;
  transition: opacity 180ms ease;
}

.message-image-gallery-fallback {
  position: absolute;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 16px;
  color: #5f6f82;
  background: #edf2f7;
  font-size: 14px;
}

.message-image-gallery-item.has-error .message-image-gallery-image {
  visibility: hidden;
}

.message-image-gallery-item.has-error .message-image-gallery-fallback {
  display: flex;
}

.message-image-gallery-trigger:focus-visible {
  outline: 3px solid rgba(29, 111, 233, 0.3);
  outline-offset: -3px;
}

.message-image-gallery-item.is-recognizing .message-image-gallery-image {
  opacity: 0.82;
}

.image-lightbox {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  min-width: 0;
  min-height: 0;
  padding: 24px;
  color: #14243a;
  background: rgba(9, 18, 31, 0.58);
}

.image-lightbox[hidden] {
  display: none;
}

.image-lightbox-dialog {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  width: min(1120px, calc(100vw - 48px));
  height: min(900px, calc(100dvh - 48px));
  min-width: 0;
  min-height: 0;
  overflow: hidden;
  border: 1px solid #d8e1ec;
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 24px 72px rgba(16, 35, 61, 0.24);
  animation: image-dialog-enter 180ms ease-out;
}

@keyframes image-dialog-enter {
  from {
    opacity: 0;
    transform: scale(0.98);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.image-lightbox-toolbar {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 56px;
  padding: 6px 10px 6px 18px;
  border-bottom: 1px solid #e1e8f0;
  background: #fff;
}

.image-lightbox-heading {
  display: flex;
  align-items: baseline;
  min-width: 0;
  gap: 10px;
}

.image-lightbox-heading strong {
  min-width: 0;
  overflow: hidden;
  color: #14243a;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.image-lightbox-heading span {
  flex: 0 0 auto;
  color: #68788d;
  font-size: 13px;
}

.image-lightbox-actions {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 8px;
}

.image-lightbox-download,
.image-lightbox-close,
.image-lightbox-nav {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  border: 1px solid #cbd8e7;
  border-radius: 8px;
  color: #24405f;
  background: #fff;
  cursor: pointer;
  touch-action: manipulation;
  transition: background-color 180ms ease, border-color 180ms ease;
}

.image-lightbox-download {
  padding: 0 16px;
  color: #1d6fe9;
  background: #f7fbff;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
}

.image-lightbox-close {
  padding: 0;
}

.image-lightbox-close .icon-x::before,
.image-lightbox-close .icon-x::after {
  background: currentColor;
}

.image-lightbox-download:hover,
.image-lightbox-close:hover,
.image-lightbox-nav:hover,
.image-lightbox-download:focus-visible,
.image-lightbox-close:focus-visible,
.image-lightbox-nav:focus-visible {
  border-color: #8fb4e1;
  background: #edf5ff;
  outline: 3px solid rgba(29, 111, 233, 0.18);
  outline-offset: 1px;
}

.image-lightbox-stage {
  position: relative;
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr) 52px;
  gap: 12px;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
  padding: 12px;
  background: #f2f5f9;
}

.image-lightbox.is-single-image .image-lightbox-stage {
  grid-template-columns: minmax(0, 1fr);
}

.image-lightbox-media {
  display: flex;
  grid-column: 2;
  align-items: center;
  justify-content: center;
  min-width: 0;
  min-height: 0;
  height: 100%;
  overflow: auto;
  overscroll-behavior: contain;
}

.image-lightbox.is-single-image .image-lightbox-media {
  grid-column: 1;
}

.image-lightbox-image {
  box-sizing: border-box;
  display: block;
  width: auto;
  max-width: 100%;
  height: auto;
  max-height: 100%;
  border: 1px solid #d9e1ea;
  background: #fff;
  object-fit: contain;
  box-shadow: 0 12px 36px rgba(16, 35, 61, 0.14);
}

.image-lightbox.is-loading .image-lightbox-image {
  opacity: 0.55;
}

.image-lightbox.has-error .image-lightbox-image {
  display: none;
}

.image-lightbox-error {
  margin: auto;
  color: #68788d;
  font-size: 15px;
}

.image-lightbox-nav {
  position: relative;
  z-index: 2;
  align-self: center;
  justify-self: center;
  width: 44px;
  height: 48px;
  padding: 0;
  font-size: 28px;
  font-weight: 300;
  line-height: 1;
}

.image-lightbox-nav[hidden] {
  display: none;
}

.image-lightbox-nav--previous {
  grid-column: 1;
}

.image-lightbox-nav--next {
  grid-column: 3;
}

.image-lightbox-thumbnails {
  position: relative;
  z-index: 2;
  display: flex;
  gap: 8px;
  justify-content: safe center;
  min-height: 72px;
  padding: 8px 16px;
  overflow-x: auto;
  border-top: 1px solid #e1e8f0;
  background: #fff;
}

.image-lightbox-thumbnails[hidden] {
  display: none;
}

.image-lightbox-thumbnail {
  flex: 0 0 54px;
  width: 54px;
  height: 54px;
  padding: 2px;
  overflow: hidden;
  border: 2px solid transparent;
  border-radius: 6px;
  background: #edf2f7;
  cursor: pointer;
  touch-action: manipulation;
}

.image-lightbox-thumbnail.is-current {
  border-color: #1d6fe9;
}

.image-lightbox-thumbnail img {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: 3px;
  object-fit: cover;
}

body.image-lightbox-open {
  overflow: hidden;
}

@media (max-width: 640px) {
  .message-image-gallery {
    width: 100%;
  }

  .message-image-gallery-grid {
    gap: 6px;
  }

  .message-image-gallery-grid--single {
    width: min(320px, 100%);
  }

  .image-lightbox {
    padding: 12px;
  }

  .image-lightbox-dialog {
    width: calc(100vw - 24px);
    height: min(680px, calc(100dvh - 24px));
  }

  .image-lightbox-toolbar {
    min-height: 56px;
    gap: 8px;
    padding: 6px 8px 6px 12px;
  }

  .image-lightbox-heading strong {
    font-size: 14px;
  }

  .image-lightbox-download {
    padding: 0 12px;
  }

  .image-lightbox-stage {
    display: block;
    padding: 10px;
  }

  .image-lightbox-nav {
    position: absolute;
    bottom: 12px;
    width: 44px;
    height: 44px;
  }

  .image-lightbox-nav--previous {
    left: 12px;
  }

  .image-lightbox-nav--next {
    right: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .message-image-gallery-image,
  .image-lightbox-download,
  .image-lightbox-close,
  .image-lightbox-nav {
    transition: none;
  }

  .image-lightbox-dialog {
    animation: none;
  }
}