body {
    background-color: black;
}
h1,h2,h3,h4,h5,h6 {
    color: #75C5F8;
}
a, i, ul, ol, blockquote, table, p {
    color: white;
}
.w3-striped tbody tr:nth-child(2n) {
  background-color: #222;
}

/* Sticky header - only active on desktop */
@media screen and (min-width: 768px) {
  body {
    display: grid;
    grid-template-rows: auto 1fr auto;
    min-height: 100vh;
  }
  
  .sticky-header {
    grid-row: 1;
    position: sticky;
    top: 0;
    z-index: 1000;
  }
  
  .sticky-footer {
    grid-row: 3;
    position: sticky;
    bottom: 0;
    z-index: 1000;
  }
  
  .main-content {
    grid-row: 2;
  }
}


/* Mobile styles - remove sticky behavior */
@media screen and (max-width: 767px) {
  .sticky-header {
    position: static;
  }
  
  .sticky-footer {
    position: static;
  }
  
  body {
    padding-top: 0;
    padding-bottom: 0;
  }
}