.custom-phone-form {
    max-width: 350px;
    margin: 20px auto;
    padding: 20px;
    border: 1px solid #ddd;
    border-radius: 10px;
    background: #fafafa;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    font-family: Arial, sans-serif;
}

.custom-phone-form label {
    font-weight: bold;
    display: block;
    margin-bottom: 6px;
}

.custom-phone-form input {
    width: 100%;
    padding: 10px;
    margin-bottom: 12px;
    border: 1px solid #ccc;
    border-radius: 6px;
    font-size: 15px;
}

.custom-phone-form .custom-btn {
    background: #0073aa;
    color: #fff;
    padding: 10px 15px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 16px;
    transition: background 0.3s;
    width: 100%;
}

.custom-phone-form .custom-btn:hover {
    background: #005f8d;
}

.strength-text {
    font-size: 14px;
    margin-top: -8px;
    margin-bottom: 10px;
}