.booking-header {
    position: fixed;
    width: 100%;
    z-index: 6;
    bottom: 30px;
    padding: 0;
    z-index: 4;
    opacity: 1;
    visibility: visible;
    background-color: transparent;
    transition: all 1s cubic-bezier(.075, .82, .165, 1);
}

.booking-header .container {
    width: fit-content;
    margin: 0 auto;
    padding: 10px;
    background-color: #fff;
    border: 1px solid #ddd;
    overflow: hidden;
    box-shadow: 0 4px 16px 0 rgba(0,0,0,0.08);
}

.booking-header form {
    display: grid;
    grid-template-columns: 1fr 1fr 0.75fr 0.75fr;
    gap: 1rem;
    margin: 0 auto;
}

.booking-header form>* {
    max-width: 200px;
}

.booking-header form {
    margin-bottom: 0;
    margin-right: 0;
}

.col-layer {
    width: 100%;
    position: relative;
    min-height: 1px;
    padding-left: 15px;
    padding-right: 15px;
    background-color: #efefef;
    display: flex;
    align-items: center;
}

.col-layer input {
    border: 0;
    background-color: transparent;
    padding: 0.5rem 1rem;
    font-size: 16px;
}

.col-layer input:focus {
    outline: none;
}

.booking-header form .combo {
    background-color: #efefef;
    padding: 0 15px;
    display: flex;
    align-items: center;
}

.booking-header form label {
    text-align: right;
    margin: 5px 8px 0 0;
    padding: 0;
    display: inline-block;
    font-size: 13px;
}

.booking-header form select {
    padding: 8px 30px 8px 10px;
    font-size: 16px;
    margin-left: 1em;
    width: calc(100% - 1em);
    outline: none;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    border: 0;
    background-color: transparent;

    background-image: url('data:image/svg+xml;utf8,<svg fill="black" height="6" width="10" xmlns="http://www.w3.org/2000/svg"><polygon points="0,0 10,0 5,6"/></svg>');
    background-repeat: no-repeat;
    background-position: right 10px center;
    background-size: 10px 6px;
}

.booking-header form button[type="submit"] {
    width: 100%;
    border: 0;
    background-color: #222;
    color: #fff;
    text-align: center;
    outline: none;
}

@media (max-width: 575px) {
    .booking-header {
        bottom: 1px;
    }

    .booking-header .container {
        margin: 0 20px;
    }

    .booking-header form {
        grid-template-columns: repeat(2, 1fr);
        /*grid-template-columns: 1fr 1fr;*/
        grid-template-rows: auto auto;
    }

    .booking-header .col-layer,
    .booking-header form .combo {
       padding-left: 10px;
       padding-right: 10px;
    }

    .booking-header form>.combo {
        grid-column: 1 / span 2;
        /*grid-column: 1;*/
        grid-row: 2;
    }

    .booking-header form>.submit-booking {
        grid-column: 1 / span 2;
        /*grid-column: 2;*/
        grid-row: 3;
        /*grid-row: 2;*/
    }

    .booking-header form>* {
        max-width: 100%;
    }
}