:root{
    --background-dark: #2d3548;
    --text-light: rgba(255,255,255,0.6);
    --text-lighter: rgba(255,255,255,0.9);
    --spacing-s: 8px;
    --spacing-m: 16px;
    --spacing-l: 24px;

    --spacing-2: 18px;
    --spacing-3: 38px;

    --spacing-xl: 32px;
    --spacing-xxl: 64px;
    --width-container: 3000px;
  }
  *{
    border: 0;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  .hero-section{
    align-items: flex-start;
    background-image: #EFE9E3 /*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-s);
    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(2, 1fr); 
    }
      }
  
      .card{
        background-color: #EFE9E3;
      list-style: none;
      position: relative;
      }
  
      .card:before{
      content: '';
      display: block;
      padding-bottom: 56.25%;
      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-2) var(--spacing-l) var(--spacing-l) var(--spacing-3);
      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;
      
      }