body {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    min-height: 100vh;
}

.nav-card {
    background: linear-gradient(135deg, rgba(30, 41, 59, 0.9) 0%, rgba(15, 23, 42, 0.9) 100%);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.nav-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    border-color: rgba(96, 165, 250, 0.5);
}

.nav-icon {
    width: 80px;
    height: 80px;
    font-size: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 16px;
    margin: 0 auto 20px;
    transition: all 0.3s ease;
}

.nav-card:hover .nav-icon {
    transform: scale(1.1) rotate(5deg);
}

@keyframes pulse-glow {
    0%, 100% { box-shadow: 0 0 20px rgba(96, 165, 250, 0.5); }
    50% { box-shadow: 0 0 40px rgba(96, 165, 250, 0.8); }
}

.status-indicator {
    animation: pulse-glow 2s infinite;
}