html, body {
  height: 100%;
  margin: 0;
  padding: 0;
}

body {
  display: flex;
  flex-direction: column;
  height: 200%; /* Twice the height of the viewport to fit two full-height divs */
}

.full-screen {
  flex: 1;
  width: 100%;
  position: relative;
  background-image: url('/images/kalex-jerez-hero.jpg');
  background-size: cover;
  background-attachment: fixed;
  background-position: center;
}

#first {
  overflow: hidden;
}

#blur-layer {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: inherit;
  background-size: cover;
  background-attachment: fixed;
  background-position: center;
  filter: blur(5px);
  z-index: 0;
}

.logo {
  position: relative;
  z-index: 1;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
}

.logo img {
  max-width: 500px;
  height: auto;
}

#second {
  z-index: 0;
}