* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  width: 100%;
  min-height: 100vh;
  background-color: #faf6e5;
  font-family: Helvetica, Verdana, sans-serif;
}

.header-container,
.gallery-container {
  width: 90vw;
  height: auto;
  margin: 0 auto;
  padding: 1em;
}

.album-container {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.album-container a {
  text-decoration: none;
  height: 150px;
}

.album-container a span {
  line-height: 150px;
}

.album-container img {
  min-height: 100%;
  max-height: 100%;
}

.album-container::after {
  content: "";
  flex-grow: 10;
}

.image-container {
  text-align: center;
  background-color: #000;
}

.image-container img {
  display: inline-block;
  max-width: 100vw;
  max-height: 85vh;
}

.control-btn {
  display: inline-block;
  text-decoration: none;
  padding: 0.5em;
  color: #fff !important;
}

.control-btn:hover {
  text-decoration: none;
  background-color: #333;
  color: #fff;
}

.control-btn.hidden {
  visibility: hidden;
}

@media (prefers-color-scheme: dark) {
  html,
  body {
    background-color: #151517;
    color: #fcf8e2;
  }

  a {
    color: #3f6e90;
  }

  a:visited {
    color: #9c6992;
  }
}