:root {
  --au-green:  #006239;
  --au-gold:   #F7C608;
  --au-white:  #FFFFFF;
  --au-burgundy: #952038;
}

/* Abstract AU-colored background */
body {
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at 0% 0%,   rgba(0, 98, 57, 0.85), transparent 55%),
    radial-gradient(circle at 100% 0%, rgba(247, 198, 8, 0.75), transparent 55%),
    radial-gradient(circle at 0% 100%, rgba(149, 32, 56, 0.85), transparent 55%),
    radial-gradient(circle at 100% 100%, rgba(255, 255, 255, 0.35), transparent 55%),
    linear-gradient(135deg, #02130b, #062f18, #051810);
  color: #f8f9fa;
  background-attachment: fixed;
  background-size: cover;
}

.expired-card {
  background: rgba(6, 20, 12, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 1rem;
  padding: 2.5rem 2rem;
  box-shadow: 0 0.5rem 1.5rem rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(12px);
}

.expired-title {
  font-size: 1.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.expired-subtitle {
  font-size: 1rem;
  color: #e5e7eb;
}