.header-topbar {
        padding: 8px 0;
        background: #000;
        display: none;
        text-align: center;
    }

    @media (max-width: 576px) {
        .header-topbar {
            display: block;
        }

        .header {
            top: 43px;
        }
    }

    .header-topbar a {
        color: #fff;
        font-size: 18px;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .header-topbar a span {
        display: inline-block;
        margin-right: 10px;
    }

    .modal-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-color: rgba(0, 0, 0, 0.8);
        z-index: 1000;
        justify-content: center;
        align-items: center;
    }

    .modal-content {
        background-color: #fff;
        padding: 30px;
        border-radius: 8px;
        width: 90%;
        max-width: 400px;
        text-align: center;
        font-family: Arial, sans-serif;
        color: #000;
        position: relative;
    }

    .close-modal {
        position: absolute;
        top: 10px;
        right: 10px;
        background: none;
        border: none;
        font-size: 20px;
        cursor: pointer;
        color: #000;
    }

    .modal-title {
        margin-bottom: 20px;
        font-size: 24px;
        font-weight: 500;
    }

    .form-group {
        margin-bottom: 15px;
        text-align: left;
    }

    .form-group label {
        display: block;
        font-size: 16px;
        margin-bottom: 5px;
    }

    .form-group input {
        width: 100%;
        padding: 10px;
        font-size: 14px;
        border: 1px solid #000;
        border-radius: 4px;
    }

    #submit-button {
        width: 100%;
        padding: 10px;
        font-size: 16px;
        color: #fff;
        background-color: #000;
        border: none;
        border-radius: 4px;
        cursor: pointer;
    }

    input[type="tel"]::placeholder {
        color: #aaa;
        font-style: italic;
    }

    input[type="tel"] {
        text-align: left;
        font-family: Arial, sans-serif;
    }