html, body {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
.background-grid {
    position: fixed;
    top: 56px; 
    left: 0;
    width: 100vw;
    height: calc(100vh - 56px); 
    z-index: 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    gap: 0;
    pointer-events: none;
  }
  .background-grid img {
    width: 50vw;
    height: auto;
    object-fit: cover;
    opacity: 0.25;
    filter: blur(5px);
  }
  @media (max-width: 991px) {
    .background-grid {
      grid-template-columns: 1fr;
      grid-template-rows: 1fr 1fr 1fr 1fr;
      top: 56px;
      height: calc(100vh - 56px);
    }
    .background-grid img {
      width: 100vw;
      height: 25vh;
    }
  }
.main-content {
    position: relative;
    z-index: 1;
    min-height: calc(100vh - 56px); 
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 56px;}