body {
    background-color: #EFEDDE;
    font-family: 'Arial', sans-serif;
}

.btn-primary, .btn-success {
    padding: 10px 20px;
    font-size: 1.2rem;
}

.page-header {
    margin-bottom: 30px;
}

.required-field::after {
    content: " *";
    color: red;
}

.error-message {
    color: #d9534f;
    font-weight: bold;
    margin: 15px 0;
}

.success-message {
    color: #5cb85c;
    font-weight: bold;
    margin: 15px 0;
}

.registration-number {
    font-size: 1.5rem;
    color: #FF0000;
    font-weight: bold;
    margin: 20px 0;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .container {
        width: 95%;
    }
    
    img {
        max-width: 100%;
        height: auto;
    }
}