:root {
  --at-blue: #222B5E;
  --at-red: #B11212;
  --at-light-grey: #f5f5f5;
  --at-dark-grey: #4a4a4a;
}
body {
  font-family: 'Segoe UI', Roboto, sans-serif;
  margin: 0;
  color: var(--at-dark-grey);
  background: var(--at-light-grey);
}
.header {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--at-blue);
  padding: 30px 20px;
  position: relative;
}
.logo-img {
  max-width: 420px;
  width: auto;
  height: auto;
  object-fit: contain;
  mix-blend-mode: multiply;
}
.logo-link {
  display: inline-block;
  margin-right: 20px;
}
header img {
  max-width: 200px;
  height: auto;
}
header h1 {
  margin-top: 30px;
  font-size: 2.5rem;
}
nav {
  background: var(--at-red);
  padding: 10px;
  display: flex;
  justify-content: center;
  gap: 20px;
}
nav a {
  color: white;
  text-decoration: none;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 4px;
  transition: background 0.3s;
}
nav a:hover {
  background: rgba(255,255,255,0.2);
}
main.container {
  max-width: 900px;
  margin: 40px auto;
  background: white;
  padding: 30px;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.10);
}
main h2 {
  border-bottom: 3px solid var(--at-red);
  padding-bottom: 8px;
  margin-bottom: 20px;
}
.links a {
  color: var(--at-blue);
  display: inline-block;
  margin-bottom: 12px;
  font-size: 1rem;
}
footer {
  text-align: center;
  padding: 20px;
  font-size: 0.9rem;
  color: #666;
}