body, html {
    padding: 0;
    margin: 0;
   overscroll-behavior: none;
   overflow: hidden;
}

/* for tutorial link only */
.links {
    position: fixed;
    bottom: 10px;
    right: 10px;
    font-size: 18px;
    font-family: sans-serif;
   background-color: white;
   padding: 10px;
}
a {
    text-decoration: none;
    color: black;
    margin-left: 1em;
}
a:hover {
    text-decoration: underline;
}
a img.icon {
    display: inline-block;
    height: 1em;
    margin: 0 0 -0.1em 0.3em;
}
:root{
    --background-dark: #2d3548;
    --text-light: rgba(255,255,255,0.6);
    --text-lighter: rgba(255,255,255,0.9);
    --spacing-s: 21px;
    --spacing-m: 32px;
    --spacing-l: 38px;
    --spacing-xl: 68px;
    --spacing-xxl: 135px;
    --width-container: 1200px;
  }
  
  *{
    border: 0;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  html{
    height: 100%;
    font-family: 'Montserrat', sans-serif;
    font-size: 14px;
  }
  
  body{
    height: 100%;
  }
  
  .hero-section{
    align-items: flex-start;
    background-image: linear-gradient(15deg, #0f4667 0%, #2a6973 150%);
    display: flex;
    min-height: 100%;
    justify-content: center;
    padding: var(--spacing-xxl) var(--spacing-l);
  }
  
  .card-grid{
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    grid-column-gap: var(--spacing-l);
    grid-row-gap: var(--spacing-l);
    max-width: var(--width-container);
    width: 100%;
  }
  
  @media(min-width: 540px){
    .card-grid{
      grid-template-columns: repeat(2, 1fr); 
    }
  }
  
  @media(min-width: 960px){
    .card-grid{
      grid-template-columns: repeat(4, 1fr); 
    }
  }
  
  .card{
    list-style: none;
    position: relative;
  }
  
  .card:before{
    content: '';
    display: block;
    padding-bottom: 150%;
    width: 100%;
  }
  
  .card__background{
    background-size: cover;
    background-position: center;
    border-radius: var(--spacing-l);
    bottom: 0;
    filter: brightness(0.75) saturate(1.2) contrast(0.85);
    left: 0;
    position: absolute;
    right: 0;
    top: 0;
    transform-origin: center;
    transform: scale(1) translateZ(0);
    transition: 
      filter 200ms linear,
      transform 200ms linear;
  }
  
  .card:hover .card__background{
    transform: scale(1.05) translateZ(0);
  }
  
  .card-grid:hover > .card:not(:hover) .card__background{
    filter: brightness(0.5) saturate(0) contrast(1.2) blur(20px);
  }
  
  .card__content{
    left: 0;
    padding: var(--spacing-l);
    position: absolute;
    top: 0;
  }
  
  .card__category{
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-s);
    text-transform: uppercase;
  }
  
  .card__heading{
    color: var(--text-lighter);
    font-size: 1.9rem;
    text-shadow: 2px 2px 20px rgba(0,0,0,0.2);
    line-height: 1.4;
    word-spacing: 100vw;
  }

  @import url(//fonts.googleapis.com/css?family=Lato:300:400);

body {
  margin:0;
}

h1 {
  font-family: 'Lato', sans-serif;
  font-weight:300;
  letter-spacing: 2px;
  font-size:48px;
}
p {
  font-family: 'Lato', sans-serif;
  letter-spacing: 1px;
  font-size:14px;
  color: #333333;
}

.header {
  position:absolute;
  margin: 25px;
  margin-left: 22%;
  padding: 25px;
  border-radius: 25px;
  text-align:center;
  color: var(--text-lighter);
  text-shadow: 2px 2px 2px rgba(0,0,0,0.5);
  line-height: 1.4;
  font-size: 1.9rem;
}
.logo {
  width:50px;
  fill:white;
  padding-right:15px;
  display:inline-block;
  vertical-align: middle;
}

.inner-header {
  height:65vh;
  width:100%;
  margin: 0;
  padding: 0;
}

.flex { /*Flexbox for containers*/
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
}

.waves {
  position:relative;
  width: 100%;
  height:15vh;
  margin-bottom:-7px; /*Fix for safari gap*/
  min-height:100px;
  max-height:150px;
}

.content {
  position:relative;
  height:20vh;
  text-align:center;
  background-color: white;
}

/* Animation */

.parallax > use {
  animation: move-forever 25s cubic-bezier(.55,.5,.45,.5)     infinite;
}
.parallax > use:nth-child(1) {
  animation-delay: -2s;
  animation-duration: 7s;
}
.parallax > use:nth-child(2) {
  animation-delay: -3s;
  animation-duration: 10s;
}
.parallax > use:nth-child(3) {
  animation-delay: -4s;
  animation-duration: 13s;
}
.parallax > use:nth-child(4) {
  animation-delay: -5s;
  animation-duration: 20s;
}
@keyframes move-forever {
  0% {
   transform: translate3d(-90px,0,0);
  }
  100% { 
    transform: translate3d(85px,0,0);
  }
}
/*Shrinking for mobile*/
@media (max-width: 768px) {
  .waves {
    height:40px;
    min-height:40px;
  }
  .content {
    height:30vh;
  }
  h1 {
    font-size:24px;
  }
}