*{
  margin: 0;
  padding: 0;
}
html,body{
  height: 100%;
  font-family: 'Aptos Display', sans-serif;
  overflow-x: hidden;
}
#header{
  background-color: #d8e1e8;
  /*background: linear-gradient(135deg, #D8E1E8, #203a43, #183E6D);*/

  padding: 0;
  color: #183e6d;
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
  height: 50px;
  width: 100%;
  position: fixed;
  z-index: 1000;
  overflow-x: hidden;
}

/* Striped Effect - Pseudo-element for a subtle stripe at the bottom */
header::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: repeating-linear-gradient(
    45deg,
    rgba(255, 255, 255, 0.3),
    rgba(255, 255, 255, 0.3) 10px,
    transparent 10px,
    transparent 20px
  );
}

#holder {
  min-height: 100%;
  position: relative;
}

.headerHolder{
  display: inline-flex;
  position: absolute;
  right: 0%;
}

.headerText {
  padding: 14px 30px;
  background-color: inherit;
  border: 0;
  color: #183e6d;
  font-size: 15px;
  font-family: 'Aptos Display', sans-serif;
  text-decoration: none;
  font-weight: bold;
  height: 50px;
}


.headerText:hover {
  background: linear-gradient(90deg, #5a82e6, #90a9f0);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
  border-radius: 0px;
  text-decoration: none;
}

.changeColourOnHover:hover{
  text-decoration: none;
}
.subheader{
  position: relative;
  height: 60px;
  width: 100%;
}
.subheaderHolder{
  display: inline-flex;
  position: absolute;
  right: 0%;
}
.subheaderText{
  padding: 15px 30px;
  background-color: inherit;
  border: 0;
  color: darkblue;
  font-size: 15px;
  font-weight: bold;
}
.subheaderText:hover{
  text-decoration: none;
  color: grey;
}
.background_img{
  float: left;
  margin-left: 1%;
  height: 100%;
}

.log_out_btn{
  margin: 15px;
  padding: 7px;
  float: right;
  border-radius: 10px;
  border-color: inherit;
}
.background{
  width: 100%;
  background-color: rgba(105,158,209,255);
  background-image: url(tower.jpg);
  background-position: center;
  background-repeat: repeat-y;
  background-size: cover;
  margin: 0;
}