body {
  margin: 0;
  padding: 0;
}

main {
  width: 1000px;
  font-size: 18px;
  margin: 10px auto;
  font-family: Helvetica, Arial, sans-serif;
  padding-top: 68px;
}

/*-----------------------------------------------------------------*/
/* Header --------------------------------------------------------*/
/*-----------------------------------------------------------------*/

.header #name {
  font-size: 23px;
}
.subpage {
  background: transparent;
  font-size: 20px;
  text-align: left;
  border: none;
  color: #6d6d6d;
}
.nav {
  display: flex;
  gap: 40px;
  align-items: center;
}

.nav .subpage {
  cursor: pointer;
  transition: transform 0.2s;
}

.nav .subpage:hover {
  transform: translateY(3px);
}
.header {
  background: #ffffffb9;    /* #f4ede8 */
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: fixed;
  top: 0;
  width: 1000px;
  z-index: 1000;
}

.header.hidden {
  transform: translateY(-120%);
}

/* Only animate header when the `.animate` class is present (added after load) */
.header.animate,
.header.animate.hidden {
  transition: transform 1s ease-in-out;
}

/*-----------------------------------------------------------------*/
/* Content --------------------------------------------------------*/
/*-----------------------------------------------------------------*/

.main-image {
  height: 500px;
  background: url('title.png') no-repeat center center;
  background-size: contain;
  background-position: center;
  margin-bottom: 20px;
}
.title {
  color:black;
  font-size: 50px;
  font-weight: bold;
  margin-bottom: 10px;
}
.atlas_wrapper {
  width:100%; 
  overflow:hidden; 
  display:flex; 
  justify-content:center;
}
.intro {
  margin: 50px 0;
  margin-bottom: 130px;
  font-size: 21px;;
  color: #6d6d6d;
}
.pdf {
  width: 100%;
  height: 18190px;
}

.footer {
  font-size: 15px;
  line-height: 1.5;
  height: 200px;
  margin: 100px 0 0 0;
}