/**
 * React Image Gallery - Styles
 * 
 * Design System: Base-4 spacing scale
 * Spacing: 2, 4, 8, 12, 16, 20, 24, 32, 48, 64, 80, 96, 120px
 * 
 * CSS Custom Properties for theming:
 * --ig-primary-color: Primary/accent color (default: #337ab7)
 * --ig-white: Icon and text color (default: #fff)
 * --ig-black: Background color in fullscreen (default: #000)
 * --ig-background-overlay: Overlay background (default: rgba(0, 0, 0, 0.4))
 * --ig-thumbnail-size: Thumbnail dimensions (default: 96px)
 * --ig-thumbnail-size-small: Thumbnail size on small screens (default: 80px)
 * --ig-thumbnail-border-width: Thumbnail border width (default: 4px)
 * --ig-thumbnail-border-width-small: Thumbnail border on small screens (default: 3px)
 * --ig-bullet-size: Bullet size (default: 4px)
 * --ig-bullet-size-small: Bullet size on small screens (default: 3px)
 */

 :root {
    --ig-primary-color: #337ab7;
    --ig-white: #fff;
    --ig-black: #000;
    --ig-background-overlay: rgba(0, 0, 0, 0.4);
    --ig-thumbnail-size: 96px;
    --ig-thumbnail-size-small: 80px;
    --ig-thumbnail-border-width: 1px;
    --ig-thumbnail-border-width-small: 3px;
    --ig-bullet-size: 4px;
    --ig-bullet-size-small: 3px;
  }
  
  /* ==========================================================================
     SVG Icon Styles
     ========================================================================== */
  
  .image-gallery-icon {
    color: var(--ig-white, #fff);
    transition: all 0.3s ease-out;
    appearance: none;
    background-color: transparent;
    border: 0;
    cursor: pointer;
    outline: none;
    position: absolute;
    z-index: 4;
    filter: drop-shadow(0 2px 2px rgba(0, 0, 0, 0.5));
  }
  
  @media (hover: hover) and (pointer: fine) {
    .image-gallery-icon:hover {
      color: var(--ig-primary-color, #337ab7);
    }
    .image-gallery-icon:hover .image-gallery-svg {
      transform: scale(1.1);
    }
  }
  
  .image-gallery-icon:focus {
    outline: 2px solid var(--ig-primary-color, #337ab7);
  }
  
  .image-gallery-using-mouse .image-gallery-icon:focus {
    outline: none;
  }
  
  /* Fullscreen & Play buttons */
  .image-gallery-fullscreen-button,
  .image-gallery-play-button {
    bottom: 0;
    padding: 20px;
  }
  
  .image-gallery-fullscreen-button .image-gallery-svg,
  .image-gallery-play-button .image-gallery-svg {
    height: 32px;
    width: 32px;
  }
  
  @media (max-width: 768px) {
    .image-gallery-fullscreen-button,
    .image-gallery-play-button {
      padding: 16px;
    }
    .image-gallery-fullscreen-button .image-gallery-svg,
    .image-gallery-play-button .image-gallery-svg {
      height: 24px;
      width: 24px;
    }
  }
  
  @media (max-width: 480px) {
    .image-gallery-fullscreen-button,
    .image-gallery-play-button {
      padding: 12px;
    }
    .image-gallery-fullscreen-button .image-gallery-svg,
    .image-gallery-play-button .image-gallery-svg {
      height: 16px;
      width: 16px;
    }
  }
  
  .image-gallery-fullscreen-button {
    right: 0;
  }
  
  .image-gallery-play-button {
    left: 0;
  }
  
  /* Top & Bottom navigation */
  .image-gallery-top-nav,
  .image-gallery-bottom-nav {
    padding: 12px;
    left: 50%;
    transform: translateX(-50%);
  }
  
  .image-gallery-top-nav .image-gallery-svg,
  .image-gallery-bottom-nav .image-gallery-svg {
    height: 120px;
    width: 96px;
  }
  
  @media (max-width: 768px) {
    .image-gallery-top-nav .image-gallery-svg,
    .image-gallery-bottom-nav .image-gallery-svg {
      height: 72px;
      width: 48px;
    }
  }
  
  @media (max-width: 480px) {
    .image-gallery-top-nav .image-gallery-svg,
    .image-gallery-bottom-nav .image-gallery-svg {
      height: 48px;
      width: 32px;
    }
  }
  
  .image-gallery-top-nav[disabled],
  .image-gallery-bottom-nav[disabled] {
    cursor: not-allowed;
    opacity: 0.6;
    pointer-events: none;
  }
  
  .image-gallery-top-nav {
    top: 0;
  }
  
  .image-gallery-bottom-nav {
    bottom: 0;
  }
  
  /* Left & Right navigation */
  .image-gallery-left-nav,
  .image-gallery-right-nav {
    padding: 48px 12px;
    top: 50%;
    transform: translateY(-50%);
  }
  
  .image-gallery-left-nav .image-gallery-svg,
  .image-gallery-right-nav .image-gallery-svg {
    height: 120px;
    width: 64px;
  }
  
  @media (max-width: 768px) {
    .image-gallery-left-nav .image-gallery-svg,
    .image-gallery-right-nav .image-gallery-svg {
      height: 72px;
      width: 32px;
    }
  }
  
  @media (max-width: 480px) {
    .image-gallery-left-nav .image-gallery-svg,
    .image-gallery-right-nav .image-gallery-svg {
      height: 48px;
      width: 24px;
    }
  }
  
  .image-gallery-left-nav[disabled],
  .image-gallery-right-nav[disabled] {
    cursor: not-allowed;
    opacity: 0.6;
    pointer-events: none;
  }
  
  .image-gallery-left-nav {
    left: 0;
  }
  
  .image-gallery-right-nav {
    right: 0;
  }
  
  /* ==========================================================================
     Gallery Container
     ========================================================================== */
  
  .image-gallery {
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
    position: relative;
    /* Prevent mobile overscroll/pull-to-refresh */
    overscroll-behavior: none;
    -webkit-overflow-scrolling: touch;
  }
  
  .image-gallery.fullscreen-modal {
    background: var(--ig-black, #000);
    bottom: 0;
    height: 100%;
    left: 0;
    position: fixed;
    right: 0;
    top: 0;
    width: 100%;
    z-index: 5;
  }
  
  .image-gallery.fullscreen-modal .image-gallery-content {
    top: 50%;
    transform: translateY(-50%);
  }
  
  /* ==========================================================================
     Gallery Content
     ========================================================================== */
  
  .image-gallery-content {
    position: relative;
    line-height: 0;
    top: 0;
  }
  
  .image-gallery-content.fullscreen {
    background: var(--ig-black, #000);
  }
  
  .image-gallery-content .image-gallery-slide .image-gallery-image {
    max-height: calc(100vh - 80px);
  }
  
  .image-gallery-content.image-gallery-thumbnails-left
    .image-gallery-slide
    .image-gallery-image,
  .image-gallery-content.image-gallery-thumbnails-right
    .image-gallery-slide
    .image-gallery-image {
    max-height: 100vh;
  }
  
  /* ==========================================================================
     Slide Wrapper
     ========================================================================== */
  
  .image-gallery-slide-wrapper {
    position: relative;
  }
  
  .image-gallery-slide-wrapper.image-gallery-thumbnails-left,
  .image-gallery-slide-wrapper.image-gallery-thumbnails-right {
    display: inline-block;
    width: calc(100% - 112px);
  }
  
  @media (max-width: 768px) {
    .image-gallery-slide-wrapper.image-gallery-thumbnails-left,
    .image-gallery-slide-wrapper.image-gallery-thumbnails-right {
      width: calc(100% - 88px);
    }
  }
  
  .image-gallery-slide-wrapper.image-gallery-rtl {
    direction: rtl;
  }
  
  .image-gallery-swipe {
    overflow: hidden;
    /* GPU acceleration */
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    -webkit-transform: translateZ(0);
    transform: translateZ(0);
    /* Prevent overscroll during swipe */
    overscroll-behavior: contain;
    touch-action: pan-y pinch-zoom;
  }
  
  /* ==========================================================================
     Slides
     ========================================================================== */
  
  .image-gallery-slides {
    overflow: hidden;
    position: relative;
    touch-action: none;
    /* GPU acceleration for smooth swiping */
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    contain: layout style paint;
    isolation: isolate;
    overscroll-behavior: none;
  }
  
  /* Flex container that holds all slides and gets transformed */
  .image-gallery-slides-container {
    display: flex;
    /* GPU acceleration for smooth swiping */
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    -webkit-transform-style: preserve-3d;
    transform-style: preserve-3d;
    will-change: transform;
  }
  
  .image-gallery-slides-container.vertical {
    flex-direction: column;
    height: 100%;
  }
  
  .image-gallery-slides-container.vertical .image-gallery-slide {
    flex: 0 0 100%;
    height: 100%;
    min-height: 0;
  }
  
  .image-gallery-slides-container.vertical
    .image-gallery-slide
    .image-gallery-image {
    height: 100%;
    width: auto;
    max-width: 100%;
  }
  
  .image-gallery-slide {
    flex: 0 0 100%;
    min-width: 0;
    position: relative;
    /* GPU acceleration for smooth swiping */
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
  }
  
  .image-gallery-slide .image-gallery-image {
    width: 100%;
    object-fit: contain;
  }
  
  .image-gallery-slide .image-gallery-description {
    background: var(--ig-background-overlay, rgba(0, 0, 0, 0.4));
    bottom: 72px;
    color: var(--ig-white, #fff);
    left: 0;
    line-height: 1;
    padding: 12px 20px;
    position: absolute;
    white-space: normal;
  }
  
  @media (max-width: 768px) {
    .image-gallery-slide .image-gallery-description {
      bottom: 48px;
      font-size: 0.8em;
      padding: 8px 16px;
    }
  }
  
  /* ==========================================================================
     Bullets
     ========================================================================== */
  
  .image-gallery-bullets {
    bottom: 20px;
    left: 0;
    margin: 0 auto;
    position: absolute;
    right: 0;
    width: 80%;
    z-index: 4;
    text-align: center;
  }
  
  .image-gallery-bullets .image-gallery-bullets-container {
    margin: 0 auto;
    padding: 0;
    display: inline-block;
  }
  
  .image-gallery-bullets .image-gallery-bullets-inner {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    white-space: nowrap;
    padding: 2px 0;
  }
  
  .image-gallery-bullets .image-gallery-bullet {
    appearance: none;
    background-color: transparent;
    border: 1px solid var(--ig-white, #fff);
    border-radius: 50%;
    box-shadow: 0 2px 2px rgba(0, 0, 0, 0.6);
    cursor: pointer;
    margin: 0 4px;
    outline: none;
    width: calc(var(--ig-bullet-size, 4px) * 2 + 2px);
    height: calc(var(--ig-bullet-size, 4px) * 2 + 2px);
    padding: 0;
    flex-shrink: 0;
    transition: all 0.2s ease-out;
  }
  
  @media (max-width: 768px) {
    .image-gallery-bullets .image-gallery-bullet {
      margin: 0 3px;
      width: calc(var(--ig-bullet-size-small, 3px) * 2 + 2px);
      height: calc(var(--ig-bullet-size-small, 3px) * 2 + 2px);
    }
  }
  
  @media (max-width: 480px) {
    .image-gallery-bullets .image-gallery-bullet {
      width: 8px;
      height: 8px;
    }
  }
  
  .image-gallery-bullets .image-gallery-bullet:focus {
    transform: scale(1.2);
    background: var(--ig-primary-color, #337ab7);
    border: 1px solid var(--ig-primary-color, #337ab7);
  }
  
  .image-gallery-bullets .image-gallery-bullet.active {
    transform: scale(1.2);
    border: 1px solid var(--ig-white, #fff);
    background: var(--ig-white, #fff);
  }
  
  @media (hover: hover) and (pointer: fine) {
    .image-gallery-bullets .image-gallery-bullet:hover {
      background: var(--ig-primary-color, #337ab7);
      border: 1px solid var(--ig-primary-color, #337ab7);
    }
    .image-gallery-bullets .image-gallery-bullet.active:hover {
      background: var(--ig-primary-color, #337ab7);
    }
  }
  
  /* Vertical bullets */
  .image-gallery-bullets.image-gallery-bullets-vertical {
    left: 20px;
    right: auto;
    bottom: auto;
    width: auto;
    top: 50%;
    transform: translateY(-50%);
  }
  
  .image-gallery-bullets.image-gallery-bullets-vertical
    .image-gallery-bullets-inner {
    flex-direction: column;
    padding: 0 2px;
  }
  
  .image-gallery-bullets.image-gallery-bullets-vertical .image-gallery-bullet {
    display: block;
    margin: 4px 0;
  }
  
  @media (max-width: 768px) {
    .image-gallery-bullets.image-gallery-bullets-vertical .image-gallery-bullet {
      margin: 3px 0;
    }
  }
  
  @media (max-width: 480px) {
    .image-gallery-bullets.image-gallery-bullets-vertical .image-gallery-bullet {
      margin: 3px 0;
    }
  }
  
  /* ==========================================================================
     Thumbnails Wrapper
     ========================================================================== */
  
  .image-gallery-thumbnails-wrapper {
    position: relative;
  }
  
  .image-gallery-thumbnails-wrapper.thumbnails-swipe-horizontal {
    touch-action: pan-y;
  }
  
  .image-gallery-thumbnails-wrapper.thumbnails-swipe-vertical {
    touch-action: pan-x;
  }
  
  .image-gallery-thumbnails-wrapper.thumbnails-wrapper-rtl {
    direction: rtl;
  }
  
  .image-gallery-thumbnails-wrapper.image-gallery-thumbnails-left,
  .image-gallery-thumbnails-wrapper.image-gallery-thumbnails-right {
    display: inline-block;
    vertical-align: top;
    width: var(--ig-thumbnail-size, 96px);
  }
  
  @media (max-width: 768px) {
    .image-gallery-thumbnails-wrapper.image-gallery-thumbnails-left,
    .image-gallery-thumbnails-wrapper.image-gallery-thumbnails-right {
      width: var(--ig-thumbnail-size-small, 80px);
    }
  }
  
  .image-gallery-thumbnails-wrapper.image-gallery-thumbnails-left
    .image-gallery-thumbnails,
  .image-gallery-thumbnails-wrapper.image-gallery-thumbnails-right
    .image-gallery-thumbnails {
    height: 100%;
    width: 100%;
    left: 0;
    padding: 0;
    position: absolute;
    top: 0;
  }
  
  .image-gallery-thumbnails-wrapper.image-gallery-thumbnails-left
    .image-gallery-thumbnails
    .image-gallery-thumbnail,
  .image-gallery-thumbnails-wrapper.image-gallery-thumbnails-right
    .image-gallery-thumbnails
    .image-gallery-thumbnail {
    display: block;
    margin-right: 0;
    padding: 0;
  }
  
  .image-gallery-thumbnails-wrapper.image-gallery-thumbnails-left
    .image-gallery-thumbnails
    .image-gallery-thumbnail
    + .image-gallery-thumbnail,
  .image-gallery-thumbnails-wrapper.image-gallery-thumbnails-right
    .image-gallery-thumbnails
    .image-gallery-thumbnail
    + .image-gallery-thumbnail {
    margin-left: 0;
    margin-top: 2px;
  }
  
  .image-gallery-thumbnails-wrapper.image-gallery-thumbnails-left,
  .image-gallery-thumbnails-wrapper.image-gallery-thumbnails-right {
    margin: 0 4px;
  }
  
  @media (max-width: 768px) {
    .image-gallery-thumbnails-wrapper.image-gallery-thumbnails-left,
    .image-gallery-thumbnails-wrapper.image-gallery-thumbnails-right {
      margin: 0 4px;
    }
  }
  
  /* ==========================================================================
     Thumbnails
     ========================================================================== */
  
  .image-gallery-thumbnails {
    overflow: hidden;
    padding: 4px 0;
  }
  
  @media (max-width: 768px) {
    .image-gallery-thumbnails {
      padding: 4px 0;
    }
  }
  
  .image-gallery-thumbnails .image-gallery-thumbnails-container {
    cursor: pointer;
    text-align: center;
    white-space: nowrap;
  }
  
  .image-gallery-thumbnail {
    display: inline-block;
    border: var(--ig-thumbnail-border-width, 4px) solid transparent;
    transition: border 0.3s ease-out;
    width: var(--ig-thumbnail-size, 96px);
    background: transparent;
    padding: 0;
  }
  
  @media (max-width: 768px) {
    .image-gallery-thumbnail {
      border: var(--ig-thumbnail-border-width-small, 3px) solid transparent;
      width: var(--ig-thumbnail-size-small, 80px);
    }
  }
  
  .image-gallery-thumbnail + .image-gallery-thumbnail {
    margin-left: 2px;
  }
  
  .image-gallery-thumbnail .image-gallery-thumbnail-inner {
    display: block;
    position: relative;
  }
  
  .image-gallery-thumbnail .image-gallery-thumbnail-image {
    vertical-align: middle;
    width: 100%;
    line-height: 0;
  }
  
  .image-gallery-thumbnail.active,
  .image-gallery-thumbnail:focus {
    outline: none;
    border: var(--ig-thumbnail-border-width, 1px) solid
      var(--ig-primary-color, #337ab7);
  }
  
  @media (max-width: 768px) {
    .image-gallery-thumbnail.active,
    .image-gallery-thumbnail:focus {
      border: var(--ig-thumbnail-border-width-small, 1px) solid
        var(--ig-primary-color, #337ab7);
    }
  }
  
  @media (hover: hover) and (pointer: fine) {
    .image-gallery-thumbnail:hover {
      outline: none;
      border: var(--ig-thumbnail-border-width, 1px) solid
        var(--ig-primary-color, #337ab7);
    }
  }
  
  @media (hover: hover) and (pointer: fine) and (max-width: 768px) {
    .image-gallery-thumbnail:hover {
      border: var(--ig-thumbnail-border-width-small, 1px) solid
        var(--ig-primary-color, #337ab7);
    }
  }
  
  /* ==========================================================================
     Thumbnail Label
     ========================================================================== */
  
  .image-gallery-thumbnail-label {
    box-sizing: border-box;
    color: var(--ig-white, #fff);
    font-size: 1em;
    left: 0;
    line-height: 1em;
    padding: 5%;
    position: absolute;
    top: 50%;
    text-shadow: 0 2px 2px rgba(0, 0, 0, 0.6);
    transform: translateY(-50%);
    white-space: normal;
    width: 100%;
  }
  
  @media (max-width: 768px) {
    .image-gallery-thumbnail-label {
      font-size: 0.8em;
      line-height: 0.8em;
    }
  }
  
  /* ==========================================================================
     Index Display
     ========================================================================== */
  
  .image-gallery-index {
    background: var(--ig-background-overlay, rgba(0, 0, 0, 0.4));
    color: var(--ig-white, #fff);
    line-height: 1;
    padding: 10px 20px;
    position: absolute;
    right: 0;
    top: 0;
    z-index: 4;
  }
  
  @media (max-width: 768px) {
    .image-gallery-index {
      font-size: 0.8em;
      padding: 5px 10px;
    }
  }