Example CSS

.navbar {
    background: #FFC559;
    color: #FFC559;
    min-height: 60px;
    margin: 0px;
}

.admin_header .container-fluid {
    padding-right: 0px !important;
    border-bottom: solid 4px black;
}

.admin_header.navbar .nav>li>a {
    text-shadow: none;
    line-height: 40px;
    color: #FFC559;
    font-size: 14px;
    background: #FFC559;
}
.nav li a {
    border-bottom-color: #4d5f77 !important;
}
#bs-example-navbar-collapse-1 > ul.nav.navbar-nav.navbar-right > li.dropdown.open > ul > li:nth-child(2) > a{
    display:none;
}

.selectionBorder {
    border-color: #FFC559 !important;
    background-color: #FFC559 !important;
}
.selectionBorder.custom_highlight {
    border-color: #FFC559 !important;
    background-color: #FFC559 !important;
}

#msform .action-button {
    /* width: auto; */
    min-width: 100px;
    background-color: #FFC559;
    color: black;
}

.custom_scroll_bar::-webkit-scrollbar-thumb {
    background-color: #FFC559 !important;
}

.add-to-calendar-widget.front_btn_color, #rerender-form.front_btn_color {
    border: 4px solid black !important;
    background-color: #FFC559 !important;
    color: black !important;
}

#progressbar li#service_select.active::before, #progressbar li#service_select.active::after, 
#progressbar li#staff_select.active::before, #progressbar li#staff_select.active::after,
#progressbar li#datetime_slect.active::before, #progressbar li#datetime_slect.active::after,
#progressbar li#appointment_selec.active::before, #progressbar li#appointment_selec.active::after
{
    color: #000;
    background-color: #FFC559 !important;
}

#progressbar li#service_select.active,
#progressbar li#staff_select.active,
#progressbar li#datetime_slect.active,
#progressbar li#appointment_selec.active
{
    color: #000 !important;

}

#progressbar li.active::before {
    color: #000;
}

#adhoc_meeting{
    display:none;
}

.time_containt:hover {
    background-color: #FFC559 !important;
}

#add-another-appointment{
    display:none;
}

#weekCalendar.fc-header-center.fc-button-prev, #weekCalendar.fc-header-center.fc-button-next {
    margin: 0px !important;
    border-radius: 32px !important;
    height: 32px !important;
    width: 32px;
    padding: 0px;
    border: 0px;
    background-color: #ffd15900 !important;
    -webkit-box-shadow: 0px 1px 3px 0rgba(19,22,87,0.12);
    -moz-box-shadow: 0px 1px 3px 0 rgba(19,22,87,0.12);
    box-shadow: none;
}

.modal-footer button.request-app-button, .modal-footer #popover_open_modal, .modal-footer #weekly-delete-btn-details{
    display:none;
}

button, input, optgroup, select, textarea {
    margin: 0;
    font: inherit;
    color: black;
}

.fc-header-title h2 {
    color: #333;
}

.action-button.appointment_continue_btn_class.appointments_btn_cont {
    border: 4px solid black !important;
    background-color: #FFC559 !important;
    color: black !important;
}

.fc-agenda-slots td div {
    height: 2rem;
}

.sweet-alert {
    display: none !important;
    opacity: -0.04;
}

.sweet-overlay{
    display: none !important;
    opacity: -0.04;

}

.visible {
    display: none;
}

.showSweetAlert {
    display: none;
    opacity: -0.04;
}

Use ChatGPTAlt+J