@font-face {
  font-family: 'Atkinson Hyperlegible';
  src: url('https://staff.germanistik.rub.de/wp-content/uploads/webfonts/Atkinson-Hyperlegible-Regular-102a.woff2') format('woff2');
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Atkinson Hyperlegible', sans-serif;
  background-color: #001c3d;
  color: #f4f6f9;
  line-height: 1.6;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

a:link {
  font-family: 'Atkinson Hyperlegible', sans-serif;
  color: white;
}

a:visited {
  font-family: 'Atkinson Hyperlegible', sans-serif;
  color: white;
}

a:hover {
  font-family: 'Atkinson Hyperlegible', sans-serif;
  color: #f4f6f9;
}

header {
  background-color: #001c3d;
  color: white;
  padding: 2rem 1rem;
  text-align: center;
}

main {
  flex: 1;
  padding: 2rem 1rem;
}

.portal-links {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  max-width: 1000px;
  margin: 0 auto;
}

@media (min-width: 600px) {
  .portal-links {
    grid-template-columns: repeat(2, 1fr);
  }
}

.portal-card {
  background-color: white;
  border-left: 10px solid #004f9e;
  padding: 1.5rem;
  text-decoration: none;
  color: #001c3d;
  box-shadow: 0 2px 6px rgba(0, 28, 61, 0.1);
  border-radius: 10px;
  transition: transform 0.2s, box-shadow 0.2s;
}

.portal-card:hover {
  transform: translateY(-7px);
  box-shadow: 0 6px 12px rgba(0, 28, 61, 0.15);
}

.portal-card h2 {
  margin-bottom: 0.5rem;
  font-size: 1.75rem;
  color: #004f9e;
  text-align: center;
}

footer {
  text-align: center;
  padding: 1rem;
  background-color: #001c3d;
  color: #e0e6ee;
  font-size: 1rem;
}