:root {
    --container-bg-color: #333;
    --left-bg-color: rgba(223, 39, 39, 0.7);
    --left-button-hover-color: rgba(161, 11, 11, 0.3);
    --right-bg-color: rgba(43, 43, 43, 0.8);
    --right-button-hover-color: rgba(92, 92, 92, 0.3);
    --hover-width: 75%;
    --other-width: 25%;
    --speed: 1000ms;
}

html, body {
    padding:0;
    margin:0;
    font-family: 'Franklin Gothic Medium', 'Arial Narrow', Arial, sans-serif;
    width: 100%;
    height: 100%;
    overflow-x: hidden;
}

h1 {
    font-size: 4rem;
    color: #fff;
    position: absolute;
    left: 50%;
    top: 20%;
    transform: translateX(-50%);
    white-space: nowrap;
}

.button {
    display: block;
    position: absolute;
    left: 50%;
    top: 40%;
    height: 2.5rem;
    padding-top: 1.3rem;
    width: 15rem;
    text-align: center;
    color: #fff;
    border: #fff solid 0.2rem;
    font-size: 1rem;
    font-weight: bold;
    text-transform: uppercase;
    text-decoration: none;
    transform: translateX(-50%);
}

.split.left .button:hover {
    background-color: var(--left-button-hover-color);
    border-color: var(--left-button-hover-color);
}

.split.right .button:hover {
    background-color: var(--right-button-hover-color);
    border-color: var(--right-button-hover-color);
}

.container {
  position: relative;
  width: 100%;
  height: 100%;
  background: var(--container-bg-color); 
}

.split {
  position:absolute;
  width: 50%;
  height: 100%;
  overflow: hidden;
}

.split.left {
  left: 0;
  background: url('/kuvat/designer.jpg') center center no-repeat;
  
  background-size: cover;
}

.split.left:before {
    position:absolute;
    content: "";
    width: 100%;
    height: 100%;
    background: var(--left-bg-color);
}

.split.right {
    right:0;
    background: url('/kuvat/programmer.png') center center no-repeat;
    background-size: cover;
}

.split.right:before {
    position:absolute;
    content: "";
    width: 100%;
    height: 100%;
    background: var(--right-bg-color);
}

.split.left, .split.right, .split.right:before, .split.left:before {
    transition: var(--speed) all ease-in-out;
}

.hover-left .left {
  width: var(--hover-width);
}

.hover-left .right {
  width: var(--other-width);
}

.hover-left .right:before {
  z-index: 2;
}

.hover-right .right {
    width: var(--hover-width);
  }
  
  .hover-right .left {
    width: var(--other-width);
  }
  
  .hover-right .left:before {
    z-index: 2;
  }

  @media(max-width: 800px) {
      h1 {
        font-size: 2rem;
      }

      .button {
          width: 12rem;
      }
  }

  @media(max-height: 700px) {
    .button {
        top: 70%;
    }
  }