body.dark-theme {
    background: #0a0a0f;
    color: #ffffff;
}

.dark-theme .neon-header {
    background: rgba(10, 10, 15, 0.8);
    border-bottom-color: rgba(0, 255, 255, 0.2);
}

.dark-theme .service-card,
.dark-theme .auth-card,
.dark-theme .profile-info,
.dark-theme .profile-achievements,
.dark-theme .blog-post-card,
.dark-theme .user-card,
.dark-theme .test-card,
.dark-theme .quest-card,
.dark-theme .modal-content,
.dark-theme .admin-card {
    background: rgba(20, 20, 30, 0.7);
    border-color: rgba(0, 255, 255, 0.2);
}

.dark-theme input,
.dark-theme textarea,
.dark-theme select {
    background: rgba(0, 0, 0, 0.5);
    color: #fff;
    border-color: rgba(0, 255, 255, 0.3);
}

.dark-theme .footer {
    border-top-color: rgba(0, 255, 255, 0.1);
}