.ohg-container {
    background: #ffffff;
    padding: 30px;
    border-radius: 15px;
    max-width: 650px;
    margin: 40px auto;
    text-align: center;
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

.ohg-container input, .ohg-container select {
    padding: 10px;
    margin: 10px;
    width: 40%;
}

.ohg-container button {
    padding: 10px 20px;
    margin-top: 10px;
    border: none;
    background: #6c5ce7;
    color: white;
    border-radius: 8px;
    cursor: pointer;
}

.ohg-container button:hover {
    background: #4834d4;
}

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