body {
    background: url('/images/smartSchool_back.jpg') no-repeat center center fixed;
    background-size: cover;
}

body.dark-mode {
    background: #121212 !important;
    color: #e0e0e0;
}

body.dark-mode .auth-form-light {
    background-color: #1f1f1f;
    color: #fff;
}

.auth-form-light {
    background-color: rgba(255, 255, 255, 0.95);
    border-radius: 10px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}