html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family: sans-serif;
  text-align: center;
  background-color: #000;
  background-repeat: no-repeat;
  background-position: top center;
  background-size: contain;
  color: #2986cc;
}

.container {
  padding: 40px 20px 120px;
}

h1 {
  margin-bottom: 40px;
  text-shadow: 2px 2px 6px rgba(0,0,0,0.7);
}

h2 {
  margin-top: 40px;
  margin-bottom: 20px;
  text-shadow: 1px 1px 4px rgba(0,0,0,0.7);
  cursor: pointer;
  user-select: none;
  display: flex;
  justify-content: center;
  align-items: center;
}

h2 span.arrow {
  margin-left: 10px;
  font-size: 0.9em;
}

a {
  display: block;
  margin: 10px auto;
  padding: 14px 20px;
  max-width: 400px;
  font-size: 1.2em;
  text-decoration: none;
  color: #fff;
  background: rgba(0,0,0,0.6);
  border-radius: 8px;
}

a:hover {
  background: rgba(0,0,0,0.8);
}

.section {
  margin-bottom: 50px;
}

.collapsible-content {
  display: none;
  margin-top: 10px;
}

/* Access code box */
.access-box input {
  padding: 10px;
  font-size: 1em;
  background: #111;
  border: 1px solid #333;
  color: #fff;
  border-radius: 6px;
  width: 200px;
  text-align: center;
}

.access-box button {
  margin-left: 10px;
  padding: 10px 16px;
  font-size: 1em;
  background: #222;
  border: 1px solid #444;
  color: #fff;
  border-radius: 6px;
  cursor: pointer;
}

.access-box button:hover {
  background: #333;
}

.classified {
  margin-top: 20px;
}