site/app/javascript/stylesheets/custom/structure/_topbar.scss

// 
// topbar.scss
//

.navbar-custom {
    padding: 0 $grid-gutter-width;
    background-color: $bg-topbar;
    box-shadow: $box-shadow;
    min-height: $topbar-height;
    position: fixed;
    left: $leftbar-width;
    top: 0;
    right: 0;
    z-index: 1001;

    .topbar-left {
        background-color: $bg-topbar;
        height: $topbar-height;
        position: fixed;
        z-index: 1;
        width: $leftbar-width;
        text-align: center;
        top: 0;
        left: 0;
        .logo {
            line-height: $topbar-height;
            i {
                display: none;
            }
        }
    }
    .topbar-menu {
        position: relative;
        z-index: 1;
        
        li {
            float: left;
            max-height: $topbar-height;

            .show {
                &.nav-link {
                    color: $gray-700;
                }
            }
        }
        .nav-link {
            padding: 0;
            color: $gray-600;
            min-width: 32px;
            display: block;
            text-align: center;
            margin: 0 10px;
            position: relative;
        }
    }

    .app-search {
        position: static;
        overflow-y: hidden;

        form {
            padding: calc(#{$topbar-height - 38px} / 2) 5px calc(#{$topbar-height - 38px} / 2) 0;
            overflow: hidden;
            max-width: 320px;
        }
    }
}

.topbar-dropdown {
    .nav-link {
        line-height: $topbar-height;
    }
}

/* Search */

.app-search {
    .form-control {
        border: none;
        height: $input-height;
        padding-left: 40px;
        padding-right: 20px;
        background-color: $bg-topbar-search;
        box-shadow: none;
    }
    span.search-icon {
        position: absolute;
        z-index: 9;
        font-size: 20px;
        line-height: 38px;
        left: 10px;
        top: 0;
    }
    .input-group-text {
        margin-left: 0;
        z-index: 4;
    }
}


/* Notification */
.notification-list {
    margin-left: 0;

    .noti-title {
        background-color: transparent;
        padding: 15px 20px;
    }

    .noti-icon {
        font-size: 22px;
        vertical-align: middle;
        line-height: $topbar-height;
    }

    .noti-icon-badge {
        display: inline-block;
        position: absolute;
        top: 22px;
        right: 6px;
        border-radius: 50%;
        height: 7px;
        width: 7px;
        background-color: $danger;
    }

    .notify-item {
        padding: 10px 20px;

        .notify-icon {
            float: left;
            height: 36px;
            width: 36px;
            line-height: 36px;
            text-align: center;
            margin-right: 10px;
            border-radius: 50%;
            color: $white;
        }

        .notify-details {
            margin-bottom: 0;
            overflow: hidden;
            margin-left: 45px;
            text-overflow: ellipsis;
            white-space: nowrap;
            b {
                font-weight: 500;
            }
            small {
                display: block;
            }
            span {
                display: block;
                overflow: hidden;
                text-overflow: ellipsis;
                white-space: nowrap;
                font-size: 13px;
            }
        }
        
        .user-msg {
            margin-left: 45px;
            white-space: normal;
            line-height: 16px;
        }
    }
    .topbar-dropdown-menu {
        .notify-item {
            padding: 7px 20px;
        }
    }
}

.profile-dropdown {
    min-width: 170px;

    i,span {
        vertical-align: middle;
    }
}

.nav-user {
    padding: calc(#{$topbar-height - 39px} / 2) 20px calc(#{$topbar-height - 39px} / 2) 57px !important;
    text-align: left !important;
    position: relative;
    background-color: lighten($gray-100, 2.5%);
    border: 1px solid $gray-100;
    border-width: 0 1px;
    min-height: $topbar-height;

    .account-user-avatar {
        position: absolute;
        top: calc(#{$topbar-height - 32px} / 2);
        left: 15px;

        img {
            height: 32px;
            width: 32px;
        }
    }
    .account-position {
        display: block;
        font-size: 12px;
        margin-top: -3px;
    }
    .account-user-name {
        display: block;
        font-weight: $font-weight-semibold;
    }
}

.button-menu-mobile {
    border: none;
    color: $dark;
    height: $topbar-height;
    line-height: $topbar-height;
    width: 60px;
    background-color: transparent;
    font-size: 24px;
    cursor: pointer;
    float: left;
    z-index: 1;
    position: relative;
    margin-left: -$grid-gutter-width;

    &.disable-btn {
        display: none;
    }

    @include media-breakpoint-down(md) {
        margin: 0 !important;
    }
}

[data-keep-enlarged="true"] {
    .navbar-custom {
        padding-left: 0;
    }
    
    .button-menu-mobile {
        margin: 0;

        &.disable-btn {
            display: inline-block;
        }
    }
}

@media (max-width: 600px) {
    .navbar-custom {
        .topbar-menu {
            position: initial;
        }

        .dropdown {
            position: static;

            .dropdown-menu {
                left: 10px!important;
                right: 10px!important;
            }
        }
    }
}

@media (max-width: 1200px) {
    .navbar-custom {
        right: 0;

        .app-search {
            display: none;
        }
    }
}

@include media-breakpoint-down(lg) {
    .nav-user {
        padding: 17px 5px 17px 57px !important;

        .account-position,
        .account-user-name {
            display: none;
        }
    }
}

@include media-breakpoint-down(md) {
    
    .navbar-custom {
        left: 0 !important;
        padding: 0;
    }
    .button-menu-mobile {
        &.disable-btn {
            display: inline-block;
        }
    }
}

@media (max-width:375px) {
    .navbar-custom {
        .topbar-menu {
            .nav-link {
                margin: 0 6px;
            }
        }

        &.topnav-navbar {
            .container-fluid {
                padding-right: 12px;
                padding-left: 12px;
            }
            .navbar-toggle {
                margin: 27px 3px
            }
            .button-menu-mobile {
                width: auto;
            }
        }
    }
}

// Scrollable Layout

@include media-breakpoint-up(lg) {
    body[data-leftbar-compact-mode="scrollable"]:not([data-layout="topnav"]) {
        .navbar-custom {
            position: absolute;
        }
    }
}

// Topbar Dark
.topnav-navbar-dark {
    background-color: $bg-topbar-dark;

    .nav-user {
        background-color: lighten($bg-topbar-dark,5%);
        border: 1px solid lighten($bg-topbar-dark,7.5%);
    }

    .topbar-menu {
        
        li {
            .show {
                &.nav-link {
                    color: $white !important;
                }
            }
        }
    }

    .app-search {
        .form-control {
            background-color: $bg-topbar-dark-search;
            color: $white;
        }
        span {
            color: $gray-600;
        }
    }

    .navbar-toggle {
        span {
            background-color: rgba($white, 0.8) !important;
        }
    }
}

body[data-layout-mode="boxed"] {
    .navbar-custom {
        position: relative;
        left: 0 !important;
        margin: -$topbar-height (-$grid-gutter-width / 2) 0;
    }

    &[data-layout="topnav"] {
        .navbar-custom {
            margin: 0;
        }
    }
}

// Locales dropdown
li#locales div a span {
    padding-left: 20px;
}