@keyframes pulseSubtle {
  0%,
  100% { opacity: 0.7; }
  50% { opacity: 1; }
}
.animate-pulse-subtle {
  animation: pulseSubtle 2s ease-in-out infinite;
}

.section-card {
    transition: all 0.3s ease;
    background: rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.dark .section-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}