frontend/src/styles/components/modal.scss

.modal-mask {
  position: fixed;
  z-index: 4000;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, .8);
  transition: opacity 150ms ease;
  color: #fff;

  .modal-container {
    transition: all 150ms ease;
    position: relative;
    width: 100%;
    height: 100%;
    max-height: 100vh;
    overflow: auto;

    .scrolling-content {
      max-width: 1024px;
      width: 100%;
      margin: 4rem auto;

      @media screen and (max-width: 1024px) {
        margin: 0;

        .close {
          display: none;
        }
      }
    }

    .modal-content {
      text-align: center;
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      text-align: center;

      @media screen and (max-width: $tablet) {
        margin: 0;
        top: 25%;
        transform: translate(-50%, -25%);
      }

      .header {
        font-size: 2rem;
        font-weight: 700;
      }

      .button {
        margin: 0 0.5rem;
      }
    }

    .close {
      position: fixed;
      top: 5px;
      right: 26px;
      color: $white;
      font-size: 2rem;
    }

    .is-wide {
      max-width: $desktop;
      width: calc(100% - 2rem);
    }
  }
}

/* Transitions */

.modal-enter,
.modal-leave-active {
  opacity: 0;
}

.modal-enter .modal-container,
.modal-leave-active .modal-container {
  -webkit-transform: scale(0.9);
  transform: scale(0.9);
}