body {
    background-color: #f8f9fa;
}

.navbar {
    transition: all 0.3s ease;
}

.navbar-brand {
    font-size: 1.5rem;
}

.nav-link {
    font-weight: 500;
    transition: color 0.2s ease;
}

.nav-link:hover {
    color: #0d6efd !important;
}

@media (max-width: 991px) {
    .navbar-toggler {
        border-color: #fff;
    }
    .navbar-toggler-icon {
        background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255, 255, 255, 1)' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
    }
 - (other styles remain unchanged)