hypothetical/resources/assets/sass/dashboard.scss

// Libraries
@import "bootstrap-sass/assets/stylesheets/_bootstrap.scss";
@import "font-awesome/scss/font-awesome.scss";
@import "pickadate/lib/themes/default";
@import "pickadate/lib/themes/default.date";
@import "simplemde/dist/simplemde.min";
@import "SpinKit/css/spinners/11-folding-cube";

// Core
@import "_fonts";

// Fontawesome Path
$fa-font-path: "/fonts";

// Colours
$c-text: #111; // text
$c-text-light: #fff; // light text
$c-input-bg: #fff; // white
$c-dashboard-dark: #3e6087;
$c-dashboard-light: #f1f1f1;
$c-dashboard-edit: #87823e;
$c-dashboard-delete: #87483e;

//
// Main Dashboard Styles
//

* {
    outline: none !important;
}

body {
    @include font-sans;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    -webkit-overflow-scrolling: touch;
}

.navbar {
    border: 0;
    background-color: $c-dashboard-dark;

    @media (max-width: $screen-xs-max) {
        margin-bottom: 0px;
    }

    &-header {
        height: $navbar-height;
    }

    &-brand {
        overflow: hidden;
        max-width: calc(100vw - 60px);
        font-weight: bold;
        white-space: nowrap;

        @media (max-width: $screen-xs-max) {
            font-size: 12px;
        }
    }

    #spark-navbar-collapse {
        border: 0;
        box-shadow: none;

        .dropdown {
            .dropdown-toggle .caret {
                margin-left: 4px;
            }

            &.open .dropdown-toggle {
                background-color: darken($c-dashboard-dark, 5%);
                color: $c-dashboard-light;
            }

            .dropdown-menu {
                top: calc(100% - 1px);
                right: -1px;
                background-color: $c-dashboard-dark;

                > li > a:hover, > li > a:focus {
                    background-color: transparent;
                }

                > li > a {
                    &, &:hover, &:focus {
                        color: #fff;
                    }
                }
            }
        }
    }

    .navbar-brand, .navbar-default .navbar-nav > li > a, .navbar-nav > li > a {
        &, &:hover, &:focus {
            color: $c-dashboard-light;
        }
    }

    .navbar-toggle {
        position: absolute;
        top: 6px;
        right: 8px;
        margin: 0px;
        border: 0;

        &, &:hover, &:focus {
            background-color: transparent;
        }

        .icon-bar {
            width: 27px;
            height: 4px;
            background-color: $c-dashboard-light;
            transition: background-color 100ms;
        }

        &:hover .icon-bar {
            background-color: darken($c-dashboard-dark, 15%);
        }
    }
}

.panel-default {
    margin-top: 20px;
    margin-bottom: 20px;

    .panel-body {
        background-color: lighten($c-dashboard-light, 1%);

        &.dashboard {
            @media (max-width: $screen-xs-max) {
                padding: 0px;
            }
        }

        .search {
            margin-bottom: 10px;
            width: 100%;

            @media (max-width: $screen-xs-max) {
                margin: 3px 3px 0px 3px;
                width: calc(100% - 6px);
            }
        }

        .help-text {
            margin-top: 10px;
            margin-bottom: 10px;
            padding: 5px 10px;
            border: 1px solid darken($c-dashboard-dark, 5%);
            border-radius: 5px;
            background-color: $c-dashboard-dark;
            color: $c-text-light;
        }
    }

    > .panel-heading {
        position: relative;
        border-top: 1px solid darken($c-dashboard-dark, 5%);
        border-right: 1px solid darken($c-dashboard-dark, 5%);
        border-left: 1px solid darken($c-dashboard-dark, 5%);
        background-color: $c-dashboard-dark;
        color: $c-dashboard-light;
        font-weight: bold;

        .dashboard-heading {
            position: absolute;
            top: 50%;
            right: 8px;
            transform: translateY(-50%);

            .btn {
                min-width: 70px;
                height: 26px;
                padding-top: 1px;
                padding-bottom: 2px;
            }

            a {
                color: $c-text;
                text-decoration: none;
            }
        }
    }
}

.form-control:focus {
    border-color: $c-dashboard-dark;
    box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075), 0 0 8px fade-out($c-dashboard-dark, 0.4);
}

.panel-body .form-group .checkbox {
    position: relative;
    display: inline-block;
    min-height: 0px;
    padding-top: 0px;
    padding-left: 22px;
    user-select: none;

    span, input {
        position: absolute;
        top: 50%;
        left: 0px;
        transform: translateY(-50%);
        display: block;
        width: 16px;
        height: 16px;
    }

    span {
        border: 1px solid lighten($c-text, 50%);
        border-radius: 4px;
        background-color: $c-input-bg;
        pointer-events: none;

        &:after {
            content: "";
            position: absolute;
            top: 0px;
            left: 0px;
            transform: scale(0);
            display: block;
            width: 100%;
            height: 100%;
            background-image: url("data:image/svg+xml;base64,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");
            background-position: center center;
            background-size: 75% auto;
            background-repeat: no-repeat;
            opacity: 0;
            transition: transform 150ms, opacity 150ms;
        }
    }

    input {
        margin: 0px;
        padding: 0px;
        opacity: 0;
        cursor: pointer;

        &:checked + span:after {
            transform: scale(1);
            opacity: 1;
        }
    }
}

.btn {
    border-color: darken($c-dashboard-dark, 5%);
    background-color: $c-dashboard-dark;
    transition: background-color 100ms;
    &:hover { background-color: darken($c-dashboard-dark, 5%); }
    &:focus { background-color: lighten($c-dashboard-dark, 5%); }

    &.vertical-margin {
        margin-top: 3px;
        margin-bottom: 3px;
    }

    &.btn-warning {
        border-color: darken($c-dashboard-edit, 10%);
        background-color: $c-dashboard-edit;
        &:hover { background-color: darken($c-dashboard-edit, 5%); }
        &:focus { background-color: lighten($c-dashboard-edit, 5%); }
    }

    &.btn-danger {
        border-color: darken($c-dashboard-delete, 10%);
        background-color: $c-dashboard-delete;
        &:hover { background-color: darken($c-dashboard-delete, 5%); }
        &:focus { background-color: lighten($c-dashboard-delete, 5%); }
    }

    &.btn-default {
        border-color: darken($c-dashboard-light, 10%);
        background-color: $c-dashboard-light;
        color: $c-text;
        &:hover { background-color: darken($c-dashboard-light, 5%); }
        &:focus { background-color: lighten($c-dashboard-light, 5%); }
    }

    &.btn-link { color: $c-dashboard-light; }
    &, &:hover, &:focus { text-decoration: none; }
}

.view-table-container {
    @media (max-width: $screen-xs-max) {
        padding: 10px 5px;
    }

    .table {
        margin-bottom: 0px;

        > thead > tr > th {
            border-bottom: 1px solid #666;
        }

        @media (max-width: $screen-md-max) {
            tr {
                &.heading-row {
                    display: none;
                }

                &:not(:first-child) {
                    border-top: 1px solid #ddd;
                }
            }

            > tbody > tr {
                > td {
                    display: block;
                    border-top: 0;

                    &:first-child {
                        padding-top: 20px;
                    }

                    &:last-child {
                        padding-bottom: 20px;
                    }
                }

                &:first-child > td:first-child {
                    padding-top: 0px;
                }

                &:last-child > td:last-child {
                    padding-bottom: 0px;
                }
            }
        }

        @media (min-width: $screen-lg-min) {
            > tbody > tr > td { padding: 20px 8px; }
            > tbody > tr:last-child > td { padding-bottom: 0px; }
            .mobile-heading { display: none; }
        }
    }
}

.list-group {
    margin-bottom: 0px;

    &.menu-list .list-group-item {
        position: relative;
        padding: 10px 15px;

        &-link {
            position: absolute;
            top: 0px;
            left: 0px;
            display: block;
            width: 100%;
            height: 100%;
            background-color: transparent;
            color: $c-text;
            transition: background-color 150ms;

            &:hover {
                background-color: fade-out(#000, 0.97);
                text-decoration: none;
            }
        }
    }

    &.edit-list {
        .list-group-item {
            padding-top: 4px;
            padding-bottom: 4px;

            @media (max-width: $screen-xs-max) {
                margin: 3px;
            }

            @media (min-width: $screen-sm-min) {
                display: flex;
            }

            &.sortable {
                @media (max-width: $screen-xs-max) {
                    padding-left: 50px;
                }
            }

            .title-column {
                padding-top: 6px;
                padding-bottom: 6px;
                padding-left: 0px;
                font-family: "Lucida Console", Monaco, monospace;

                @media (max-width: $screen-xs-max) {
                    text-align: center;
                }

                @media (min-width: $screen-sm-min) {
                    overflow: hidden;
                    flex-grow: 1;
                    white-space: nowrap;
                }

                .sort-icon {
                    margin-right: 10px;
                    display: inline-block;
                    opacity: 1;
                    transition: opacity 100ms;
                    cursor: grab;

                    @media (max-width: $screen-xs-max) {
                        position: absolute;
                        top: 50%;
                        left: 20px;
                        transform: translateY(-50%);
                    }
                }

                .column {
                    display: inline-block;
                }

                .spacer {
                    @media (max-width: $screen-xs-max) {
                        display: block;
                        font-size: 0;
                    }

                    @media (min-width: $screen-sm-min) {
                        display: inline-block;
                    }
                }
            }

            .button-column {
                padding-right: 0px;

                @media (max-width: $screen-xs-max) {
                    padding-bottom: 5px;
                    padding-left: 0px;
                    text-align: center;
                }

                @media (min-width: $screen-sm-min) {
                    padding-left: 5px;
                    flex-shrink: 0;
                    text-align: right;
                }

                .btn {
                    margin: 3px;
                    min-width: 70px;
                    height: 26px;
                    padding-top: 1px;
                    padding-bottom: 2px;

                    @media (max-width: $screen-xs-max) {
                        min-width: 33%;
                    }
                }
            }
        }

        &.filtered .list-group-item .title-column .sort-icon {
            opacity: 0.5;
            pointer-events: none;
        }
    }
}

.edit-item {
    margin-top: 10px;

    .CodeMirror {
        height: 300px;
        padding: 5px;

        &-code {
            margin-bottom: 10px;
        }
    }

    .picker__holder {
        overflow-y: hidden;

        .picker__button--today {
            white-space: nowrap;
        }

        .picker__select--year, .picker__select--month, .picker__month, .picker__day, .picker__weekday, .picker__footer {
            @media (max-width: $screen-xs-max) {
                font-size: 16px;
            }
        }

        .picker__select--year, .picker__select--month {
            width: auto;
            height: 1.5em;
            padding: 0px;
        }
    }

    label {
        height: 32px;
        line-height: 32px;
    }

    input {
        margin-bottom: 15px;
        display: block;
        width: 100%;

        &:not([type="file"]) {
            padding: 5px 8px;
            border: 1px solid darken($c-dashboard-light, 10%);
            border-radius: 2px;
            transition: border-color 150ms;
        }

        &.date-picker {
            cursor: pointer;
        }
    }

    .current-image {
        margin-bottom: 15px;
        display: block;
        width: 125px;
        max-width: 100%;
    }

    .edit-button {
        margin-bottom: ($grid-gutter-width / 2);
        display: inline-block;
        padding: 5px 10px;
        border-radius: 5px;
        text-transform: uppercase;
        transition: background-color 150ms;
        cursor: pointer;

        &:hover, &:focus {
            text-decoration: none;
        }

        &.view {
            border: 1px solid darken($c-dashboard-dark, 5%);
            background-color: $c-dashboard-dark;
            color: $c-text-light;

            &:hover {
                background-color: lighten($c-dashboard-dark, 5%);
            }
        }

        &.delete {
            border: 1px solid darken($c-dashboard-delete, 5%);
            background-color: $c-dashboard-delete;
            color: $c-text-light;

            &:hover {
                background-color: lighten($c-dashboard-delete, 5%);
            }
        }
    }

    .back-button {
        float: left;
    }

    .submit-button {
        float: right;

        &.disabled {
            pointer-events: none;
        }
    }

    .back-button, .submit-button {
        margin: 25px 15px 15px 15px;

        @media (max-width: ($screen-sm - 1)) {
            float: none;
            width: calc(100% - 30px);
            &:first-child { margin: 25px 15px 5px 15px; }
            &:last-child { margin: 5px 15px 25px 15px; }
        }
    }
}

#loading-modal {
    z-index: 1000;
    position: fixed;
    top: 0px;
    left: 0px;
    visibility: hidden;
    width: 100%;
    height: 100%;
    background-color: fade-out(lighten($c-dashboard-light, 1%), 0.6);
    opacity: 0;
    transition: opacity 250ms;

    .spinner-container {
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translateX(-50%) translateY(-50%);
    }
}

.modal {
    z-index: 1000;
    position: fixed;
    top: 0px;
    left: 0px;
    visibility: hidden;
    display: table;
    width: 100%;
    height: 100%;
    background-color: fade-out(lighten($c-dashboard-light, 1%), 0.6);
    opacity: 0;
    transition: opacity 250ms;

    .modal-container {
        display: table-cell;
        vertical-align: middle;
        text-align: center;
        .panel { margin: 0px; }

        .btn {
            margin: 20px 15px;
            display: inline-block;
        }
    }

    &#alert-modal {
        .modal-container {
            .panel { position: relative; }

            .message {
                min-height: 50px;
                padding: 15px 106px 10px 20px;
                text-align: left;
            }

            .btn {
                position: absolute;
                top: 50%;
                right: 0px;
                transform: translateY(-50%);
            }
        }
    }
}