PascalKleindienst/saga-gallery

// Imports
@import 'variables';

// Gallery
.saga-gallery {
  display: inline-block;

  * { box-sizing: border-box; }
}

// Slider
.saga-slider {
  position: relative;
  z-index: 1;
  margin: 0;
  padding: 0;
  overflow: hidden;
  list-style: none;

  li {
    position: absolute;
    top: 0;
    left: 0;
    transform: translateX(100%);
    transition: opacity .3s;
    opacity: 0;
    z-index: 1;
    width: 100%;
    height: 100%;

    &.selected {
      position: relative;
      transform: translateX(0);
      opacity: 1;
      z-index: 2;
    }

    // center image
    &::before {
      display: inline-block;
      margin-right: -1px;
      width: 1px;
      height: 50%;
      content: '';
    }

    img {
      display: inline-block;
      margin: 0;
      padding: 0;
      width: auto;
      max-width: 100%;
      height: auto;
      max-height: 100%;
      vertical-align: middle;
    }
  }

  // description
  .saga-description {
    display: none;
  }

  // zoom overlay
  &::after {
    display: inline-block;
    position: absolute;
    top: 0;
    left: 0;
    transition: opacity .25s;
    opacity: 0;
    z-index: 4;
    background: $image-overlay;
    background-size: 48px;
    width: 100%;
    height: 100%;
    content: '';
  }
}

// Close Button
.saga-close {
  display: none;
  position: absolute;
  top: 15px;
  right: 30px;
  transition: transform .3s 0s, visibility 0s .4s;
  visibility: hidden;
  opacity: 0;
  z-index: 2;
  overflow: hidden;
  text-decoration: none;
  white-space: nowrap;

  &::after {
    color: $font-color;
    font-size: 48px;
    content: '\02DF';
  }
}

// Navigation
.saga-slider-nav {
  list-style: none;

  // Nav Arros
  li {
    position: absolute;
    top: 50%;
    bottom: auto;
    transform: translateY(-50%);
    z-index: 2;

    &:first-of-type {
      left: 10px;
    }

    &:last-of-type {
      right: 10px;
    }
  }

  // Left Arrow
  li:first-of-type > a::before {
    content: '\27E8';
  }

  // nav item
  a {
    display: block;
    transition: opacity .2s 0s, visibility 0s 0s;
    overflow: hidden;
    color: transparent;

    // right arrow
    &::before {
      color: $font-color;
      font-size: 48px;
      content: '\27E9';
    }

    &.inactive {
      transition: opacity .2s 0s, visibility 0s .2s;
      visibility: hidden;
      opacity: 0;
    }
  }
}

// Active Slider
.saga-slider-active {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 1000;
  background: $modal-bg;
  width: 100%;
  height: 100%;
  text-align: center;
  overflow-y: auto;

  .saga-slider {
    margin: 0 auto;
    cursor: auto;
    height: 100%;

    .selected {
      display: inline-block;
      width: 100%;
      height: 100%;
      text-align: center;
      line-height: 1px;
    }
  }

  // description
  .selected {
    .saga-description {
      display: block;
      position: absolute;
      bottom: 0;
      z-index: 9;
      background: $description-bg;
      padding: 5px 10px;
      width: 100%;
      text-align: left;
      color: $font-color;
    }
  }

  // close button
  .saga-close {
    display: block;
    visibility: visible;
    opacity: 1;
  }
}

@media only screen and (min-width: 1024px) {
  .saga-gallery {
    &:not(.saga-slider-active) {
      .saga-slider:hover::after {
        opacity: 1;
      }
    }
  }

  // Slider
  .saga-slider {
    cursor: pointer;

    .saga-close {
      display: block;
    }
  }

  // Active slider
  .saga-slider-active {
    .saga-slider {
      cursor: auto;
    }

    .saga-slider-nav {
      li {
        transition: opacity .4s .4s, visibility 0s .4s;
        visibility: visible;
        opacity: 1;
      }
    }
  }

  // Slider Nav
  .saga-slider-nav {
    li {
      transition: opacity .4s 0s, visibility 0s .4s;
      visibility: hidden;
      opacity: 0;

      &:first-child {
        left: 30px;
      }

      &:last-child {
        right: 30px;
      }
    }
  }
}