.shg-container {
    width: 100%;
    max-width: 750px;
    margin: 60px auto;
    padding: 40px;
    background: #ffffff;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 15px 35px rgba(0,0,0,0.08);
}

.shg-container input,
.shg-container select {
    padding: 10px;
    margin: 10px;
    width: 45%;
    max-width: 300px;
}

.shg-container button {
    padding: 10px 20px;
    margin-top: 10px;
    border: none;
    background: #ff6b81;
    color: white;
    border-radius: 8px;
    cursor: pointer;
}

.shg-container button:hover {
    background: #ff4757;
}

#shg_result {
    margin-top: 20px;
    font-size: 18px;
    min-height: 60px;
}

@media (max-width: 768px) {
    .shg-container input,
    .shg-container select {
        width: 90%;
    }
}