html, body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  background-color: #fffff0;
  font-family: Verdana, Tahoma, Arial, Helvetica, Futura, sans-serif;
  box-sizing: border-box;
}

h1 {
  color: #404040;
  text-align: left;
  font-size: 200%;
  font-family: Futura, Verdana, Tahoma, Arial, Helvetica, sans-serif;
  margin-top: 0;
}

a {
  color: #ef8e01;
  font-size: 100%;
  font-weight: normal;
  text-decoration: none;
  margin: 0 10px;
}

a:visited, a:hover, a:active {
  color: #ef8e01;
  text-decoration: none;
}

header img {
  height: 80px;
  display: block;
  margin: 40px auto 20px auto;
  pointer-events: none;
  user-select: none;
}

main {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  justify-content: center;
  gap: 16px;
  padding-top: 40px;
  padding-bottom: 100px;
  max-width: 1000px;
  margin: 0 auto;
}

.logo-tile {
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #eee;
  box-sizing: border-box;
  overflow: hidden;
  transition: transform 0.3s;
}

.logo-tile:hover {
  transform: scale(1.05);
}

.logo-tile-inner {
  width: 80%;
  height: 80%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-tile img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  user-select: none;
  -webkit-user-drag: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  pointer-events: none;
}

a.logo-link {
  display: block;
  width: 100%;
  height: 100%;
}

footer {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: #fffff0;
  text-align: center;
  padding: 15px 0;
  z-index: 10;
}

footer a {
  display: inline-block;
  margin: 0 15px;
}

@media (max-width: 800px) {
  body {
    margin-left: 32px;
    margin-right: 32px;
  }

  h1 {
    font-size: 400%;
  }

  main {
    grid-template-columns: 1fr;
    padding: 40px 10px 100px 10px;
  }
}