#rth-pre-form {
    max-width: 90%;
    margin: 30px auto;
    background: #fff;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 0 15px rgba(0,0,0,0.1);
}
#rth-pre-form label {
    display: block;
    margin-top: 15px;
}
#rth-pre-form input, #rth-pre-form textarea, #rth-pre-form select {
    width: 100%;
    padding: 8px;
    margin-top: 5px;
}
#rth-pre-form button {
    margin-top: 20px;
    padding: 10px;
    background-color: #0073aa;
    color: white;
    border: none;
    cursor: pointer;
}
#rth-pre-form button:hover {
    background-color: #005f8d;
}
.success-msg {
    background: #e0ffe0;
    padding: 20px;
    border-radius: 8px;
    font-weight: bold;
    text-align: center;
}
.rth-success-message {
    background: linear-gradient(135deg, #e0f7ec, #d0f0ff);
    border: 1px solid #c1e2dc;
    color: #065f46;
    padding: 20px;
    border-radius: 12px;
    margin-top: 20px;
    font-weight: 600;
    text-align: center;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.06);
    animation: fadeIn 0.5s ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}