// CREDIT: https://www.joshwcomeau.com/animation/3d-button/

@mixin button-effect {
  .pushable {
    position: relative;
    border: none;
    background: transparent;
    padding: 0;
    cursor: pointer;
    outline-offset: 4px;
    transition: filter 250ms;
  }

  .shadow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    // border-radius: 12px;
    background: hsl(0deg 0% 0% / 0.25);
    will-change: transform;
    transform: translateY(2px);
    transition:
      transform 600ms cubic-bezier(.3, .7, .4, 1);
  }

  .edge {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    // border-radius: 12px;
    background: linear-gradient(to left,
        hsl(235, 84%, 26%) 0%,
        hsl(235, 84%, 26%) 8%,
        hsl(235, 84%, 26%) 92%,
        hsl(235, 84%, 26%) 100%);
  }

  .front {
    display: block;
    position: relative;
    padding: 12px 42px;
    // border-radius: 12px;
    // font-size: 1.25rem;
    color: white;
    background: hsl(188, 88%, 29%);
    will-change: transform;
    transform: translateY(-4px);
    transition:
      transform 600ms cubic-bezier(.3, .7, .4, 1);
  }

  .pushable:hover {
    filter: brightness(110%);
  }

  .pushable:hover .front {
    transform: translateY(-6px);
    transition:
      transform 250ms cubic-bezier(.3, .7, .4, 1.5);
  }

  .pushable:active .front {
    transform: translateY(-2px);
    transition: transform 34ms;
  }

  .pushable:hover .shadow {
    transform: translateY(4px);
    transition:
      transform 250ms cubic-bezier(.3, .7, .4, 1.5);
  }

  .pushable:active .shadow {
    transform: translateY(1px);
    transition: transform 34ms;
  }

  .pushable:focus:not(:focus-visible) {
    outline: none;
  }

  .pushable-f {

    .front,
    .edge,
    .shadow {
      border-top-left-radius: 13px;
      border-bottom-left-radius: 13px;
    }

    .edge {
      background: linear-gradient(to left,
          hsl(235, 84%, 26%) 0%,
          hsl(235, 84%, 26%) 8%,
          hsl(235, 84%, 26%) 92%,
          hsl(193, 100%, 30%) 100%);
    }
  }

  .pushable-l {

    .front,
    .edge,
    .shadow {

      border-top-right-radius: 13px;
      border-bottom-right-radius: 13px;
    }

    .edge {
      background: linear-gradient(to left,
          hsl(193, 100%, 30%) 0%,
          hsl(235, 84%, 26%) 8%,
          hsl(235, 84%, 26%) 92%,
          hsl(235, 84%, 26%) 100%);
    }
  }
}