.gradient-bg {
    background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%);
}

.feature-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    height: 100%;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.security-icon {
    transition: all 0.3s ease;
}

.security-icon:hover {
    transform: scale(1.1);
    filter: brightness(1.2);
}

@media (max-width: 640px) {
    .mobile-menu {
        display: none;
    }
    .mobile-menu.active {
        display: block;
    }
}

.animate-fade-up {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.6s ease forwards;
}

@keyframes fadeUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}