.m-p-g {
  max-width: 100%;
  margin: 0 auto;
}
.m-p-g__thumbs-img {
  z-index: 1;
  filter: brightness(100%);
  will-change: opacity, transform;
  transition: all 0.5s cubic-bezier(0.23, 1, 0.32, 1);
}
.m-p-g__thumbs-img.active {
  z-index: 50;
}
.m-p-g__thumbs-img.layout-completed {
  opacity: 1;
}
.m-p-g__thumbs-img.hide {
  opacity: 0;
}
.m-p-g__thumbs-img:hover {
  filter: brightness(110%);
}
.m-p-g__fullscreen {
  position: fixed;
  z-index: 105;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 100vh;
  background: rgba(0, 0, 0, 0);
  visibility: hidden;
  transition: background 0.25s ease-out, visibility 0.01s 0.5s linear;
  will-change: background, visibility;
  backface-visibility: hidden;
}
.m-p-g__fullscreen.active {
  transition: background 0.25s ease-out, visibility 0.01s 0s linear;
  visibility: visible;
  background: rgba(0, 0, 0, 0.95);
}
.m-p-g__fullscreen-img {
  pointer-events: none;
  position: absolute;
  transform-origin: left top;
  top: 50%;
  left: 50%;
  max-height: 100vh;
  max-width: 100%;
  visibility: hidden;
  will-change: visibility;
  transition: opacity 0.5s ease-out;
}
.m-p-g__fullscreen-img.active {
  visibility: visible;
  opacity: 1 !important;
  transition: transform 0.5s cubic-bezier(0.23, 1, 0.32, 1), opacity 0.5s ease-out;
}
.m-p-g__fullscreen-img.almost-active {
  opacity: 0;
  transform: translate3d(0, 0, 0) !important;
}
.m-p-g__controls {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 200;
  height: 20vh;
  background: linear-gradient(to top, transparent 0%, rgba(0, 0, 0, 0.55) 100%);
  opacity: 0;
  visibility: hidden;
  transition: all 0.5s cubic-bezier(0.23, 1, 0.32, 1);
}
.m-p-g__controls.active {
  opacity: 1;
  visibility: visible;
}
.m-p-g__controls-close,
.m-p-g__controls-arrow {
  appearance: none;
  border: none;
  background: none;
}
.m-p-g__controls-close:focus,
.m-p-g__controls-arrow:focus {
  outline: none;
}
.m-p-g__controls-arrow {
  position: absolute;
  z-index: 1;
  top: 0;
  width: 20%;
  height: 100vh;
  display: flex;
  align-items: center;
  cursor: pointer;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
  opacity: 0;
}
.m-p-g__controls-arrow:hover {
  opacity: 1;
}
.m-p-g__controls-arrow--prev {
  left: 0;
  padding-left: 3vw;
  justify-content: flex-start;
}
.m-p-g__controls-arrow--next {
  right: 0;
  padding-right: 3vw;
  justify-content: flex-end;
}
.m-p-g__controls-close {
  position: absolute;
  top: 3vh;
  left: 3vw;
  z-index: 5;
  cursor: pointer;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}
.m-p-g__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.07);
  transition: all 0.25s ease-out;
}
.m-p-g__btn:hover {
  background: rgba(255, 255, 255, 0.15);
}
.m-p-g__alertBox {
  position: fixed;
  z-index: 999;
  max-width: 700px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: white;
  padding: 25px;
  border-radius: 3px;
  text-align: center;
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.23), 0 10px 40px rgba(0, 0, 0, 0.19);
  color: grey;
}
.m-p-g__alertBox h2 {
  color: red;
}

.demo-btn {
  display: inline-block;
  margin: 0 2.5px 4vh 2.5px;
  text-decoration: none;
  color: grey;
  padding: 15px;
  line-height: 1;
  min-width: 140px;
  background: rgba(0, 0, 0, 0.07);
  border-radius: 6px;
}
.demo-btn:hover {
  background: rgba(0, 0, 0, 0.12);
}
@media (max-width: 640px) {
  .demo-btn {
    min-width: 0;
    font-size: 14px;
  }
}