.bpo-overlay-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 400px;
    padding: 50px 20px;
    background: #f9f9f9;
    border: 1px dashed #ccc;
    border-radius: 8px;
    box-sizing: border-box;
    width: 100%;
}

.bpo-overlay-box {
    background: #ffffff;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    text-align: center;
    max-width: 500px;
    width: 100%;
}

.bpo-overlay-box h2 {
    margin-top: 0;
    margin-bottom: 25px;
    font-size: 24px;
    color: #333;
    line-height: 1.4;
}

.bpo-code-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.bpo-code-form input[type="text"] {
    padding: 12px 15px;
    font-size: 18px;
    border: 1px solid #ddd;
    border-radius: 5px;
    text-align: center;
    letter-spacing: 2px;
    width: 100%;
    box-sizing: border-box;
}

.bpo-code-form input[type="text"]:focus {
    outline: none;
    border-color: #007cba;
    box-shadow: 0 0 0 1px #007cba;
}

.bpo-code-form button {
    padding: 12px 20px;
    font-size: 16px;
    background-color: #007cba;
    color: #fff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.2s;
    font-weight: 600;
}

.bpo-code-form button:hover {
    background-color: #005a87;
}

.bpo-code-form button:disabled {
    background-color: #a0cce0;
    cursor: not-allowed;
}