bootstrap-fileinput/scss/fileinput.scss

/*!
 * bootstrap-fileinput v4.5.1
 * http://plugins.krajee.com/file-input
 *
 * Krajee default styling for bootstrap-fileinput.
 *
 * Author: Kartik Visweswaran
 * Copyright: 2014 - 2018, Kartik Visweswaran, Krajee.com
 *
 * Licensed under the BSD 3-Clause
 * https://github.com/kartik-v/bootstrap-fileinput/blob/master/LICENSE.md
 */
//colors
$mountain-mist: #999 !default;
$apple-blossom: #a94442 !default;
$vanilla-ice: #f2dede !default;
$oyster-pink: #ebccd1 !default;
$gallery: #eee !default;
$alto: #ddd !default;
$green: #008000 !default;
$mine-shaft: #333 !default;
$boston-blue: #428bca !default;
$tapa: #777 !default;
$black: #000 !default;
$black-20: rgba(0, 0, 0, 0.2);
$black-30: rgba(0, 0, 0, 0.3);
$black-40: rgba(0, 0, 0, 0.4);
$mystic: #e1edf7 !default;
$perano: #a1abff !default;
$silver-chalice: #aaa !default;
$viking: #5acde2 !default;
$curious-blue: #1c94c4 !default;
$link-water: #d9edf7 !default;

//fonts
$font-0: Impact !default;
$font-1: Charcoal !default;
$font-2: sans-serif !default;
$font-3: Menlo !default;
$font-4: Monaco !default;
$font-5: Consolas !default;
$font-6: "Courier New" !default;
$font-7: monospace !default;

//urls
$url-0: url(../img/loading.gif) !default;
$url-1: url(../img/loading-sm.gif) !default;

//standard measures
$radius: 4px !default;
$pad: 5px !default;
$border: 1px !default;

//operations
@function multiply($pixels, $multiplier) {
    @return $pixels * $multiplier;
}

//@extend-elements
%set-invisible {
    width: 0;
    height: 0;
}

%set-hidden {
    display: none;
}

%set-absolute {
    position: absolute;
}

%set-relative {
    position: relative;
}

%set-text-left {
    text-align: left;
}

%set-error {
    @extend %set-text-left;
    margin: 0;
}

%set-indicator {
    margin: $pad 0 (-$pad);
    width: multiply($pad, 3.2);
    height: multiply($pad, 3.2);
}

%set-progress {
    height: multiply($pad, 2.2);
    font-size: multiply($pad, 1.8);
}

%set-caption {
    display: block;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    width: multiply($pad, 32);
    height: multiply($pad, 3);
    margin: auto;
}

%set-object {
    max-width: 100%;
    max-height: 100%;
    width: auto;
}

%set-object-video {
    @extend %set-object;
    height: 100%;
}

%set-object-default {
    width: 100%;
}

.kv-hidden {
    @extend %set-hidden;
}

.hide-content .kv-file-content {
    @extend %set-hidden;
}

.file-input {
    @extend %set-relative;
}

.file-no-browse {
    @extend %set-absolute;
    left: 50%;
    bottom: 20%;
    width: 1px;
    height: 1px;
    font-size: 0;
    opacity: 0;
    border: none;
    background: none;
    outline: none;
    box-shadow: none;
}

.file-loading {
    input[type=file] {
        @extend %set-invisible;
    }
    &:before {
        @extend %set-relative;
        content: " Loading...";
        display: inline-block;
        padding-left: multiply($pad, 4);
        line-height: multiply($pad, 3.2);
        font-size: multiply($pad, 2.6);
        font-variant: small-caps;
        color: $mountain-mist;
        background: transparent $url-0 top left no-repeat;
    }
}

input[type=file].file-loading {
    @extend %set-invisible;
}

.file-object {
    margin: 0 0 (-$pad) 0;
    padding: 0;
}

.btn-file {
    @extend %set-relative;
    overflow: hidden;
    input[type=file] {
        @extend %set-absolute;
        top: 0;
        left: 0;
        min-width: 100%;
        min-height: 100%;
        text-align: right;
        opacity: 0;
        background: none repeat scroll 0 0 transparent;
        cursor: inherit;
        display: block;
    }
    ::-ms-browse {
        font-size: multiply($pad, 2000);
        width: 100%;
        height: 100%;
    }
}

.file-caption {
    @extend %set-relative;
    .file-caption-name {
        width: 100%;
        margin: 0;
        padding: 0;
        box-shadow: none;
        border: none;
        background: none;
        outline: none;
    }
    &.icon-visible {
        .file-caption-icon {
            display: inline-block;
        }
        .file-caption-name {
            padding-left: multiply($pad, 3);
        }
    }
}

.file-caption-icon {
    @extend %set-hidden;
    @extend %set-absolute;
    left: multiply($pad, 1.6);
}

.file-error-message {
    color: $apple-blossom;
    background-color: $vanilla-ice;
    margin: $pad;
    border: $border solid $oyster-pink;
    border-radius: $radius;
    padding: multiply($pad, 3);
    pre {
        @extend %set-error;
        margin: $pad 0;
    }
    ul {
        @extend %set-error;
    }
}

.file-caption-disabled {
    background-color: $gallery;
    cursor: not-allowed;
    opacity: 1;
}

.file-preview {
    @extend %set-relative;
    border-radius: multiply($radius, 1.25);
    border: $border solid $alto;
    padding: multiply($pad, 1.6);
    width: 100%;
    margin-bottom: $pad;
    .btn-xs {
        padding: multiply($pad, 0.2) $pad;
        font-size: multiply($pad, 2.4);
        line-height: 1.5;
        border-radius: multiply($radius, 0.75);
    }
    .fileinput-remove {
        @extend %set-absolute;
        top: multiply($pad, 0.2);
        right: multiply($pad, 0.2);
        line-height: multiply($pad, 2);
    }
    .clickable {
        cursor: pointer;
    }
}

.file-preview-image {
    font: multiply($pad, 8) $font-0, $font-1, $font-2;
    color: $green;
}

.krajee-default {
    &.file-preview-frame {
        @extend %set-relative;
        margin: multiply($pad, 1.6);
        border: $border solid $black-20;
        box-shadow: 0 0 multiply($pad, 2) 0 $black-20;
        padding: multiply($pad, 1.2);
        float: left;
        text-align: center;
        .kv-file-content {
            width: multiply($pad, 42.6);
            height: multiply($pad, 32);
            &.kv-pdf-rendered {
                width: 400px;
            }
        }
        .file-thumbnail-footer {
            height: multiply($pad, 14);
        }
        &:not(.file-preview-error):hover {
            border: $border solid $black-30;
            box-shadow: 0 0 multiply($pad, 2) 0 $black-40;
        }
    }
    .file-preview-text {
        display: block;
        color: $boston-blue;
        border: $border solid $alto;
        font-family: $font-3, $font-4, $font-5, $font-6, $font-7;
        outline: none;
        padding: multiply($pad, 1.6);
        resize: none;
    }
    .file-preview-html {
        border: $border solid $alto;
        padding: multiply($pad, 1.6);
        overflow: auto;
    }
    .file-actions {
        @extend %set-text-left;
    }
    .file-other-error {
        @extend %set-text-left;
    }
    .file-other-icon {
        font-size: 6em;
    }
    .file-footer-buttons {
        float: right;
    }
    .file-footer-caption {
        display: block;
        text-align: center;
        padding-top: multiply($pad, 0.8);
        font-size: multiply($pad, 2.2);
        color: $tapa;
        margin-bottom: multiply($pad, 3);
    }
    .file-preview-error {
        opacity: 0.65;
        box-shadow: none;
    }
    .file-drag-handle {
        @extend %set-indicator;
    }
    .file-upload-indicator {
        @extend %set-indicator;
    }
    .file-thumb-progress {
        @extend %set-absolute;
        height: multiply($pad, 2.2);
        top: multiply($pad, 7.4);
        left: 0;
        right: 0;
        .progress {
            @extend %set-progress;
        }
        .progress-bar {
            @extend %set-progress;
            font-family: Verdana, Helvetica, sans-serif;
        }
    }
    .file-thumbnail-footer {
        @extend %set-relative;
    }
    .file-caption-info {
        @extend %set-caption;
    }
    .file-size-info {
        @extend %set-caption;
    }
    &.kvsortable-ghost {
        background: $mystic;
        border: multiply($border, 2) solid $perano;
    }
    .file-preview-other:hover {
        opacity: 0.8;
    }
    .file-preview-frame:not(.file-preview-error) .file-footer-caption:hover {
        color: $black;
    }
}

.kv-upload-progress {
    .progress {
        height: multiply($pad, 4);
        line-height: multiply($pad, 4);
        margin: multiply($pad, 2) 0;
        overflow: hidden;
    }
    .progress-bar {
        height: multiply($pad, 4);
        font-family: Verdana, Helvetica, sans-serif;
    }
}

.file-zoom-dialog {
    .file-other-icon {
        //noinspection CssOverwrittenProperties
        font-size: 22em;
        //noinspection CssOverwrittenProperties
        font-size: 50vmin;
    }
    .modal-dialog {
        @extend %set-relative;
        width: auto;
    }
    .modal-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        &:before {
            @extend %set-hidden;
        }
        &:after {
            @extend %set-hidden;
        }
    }
    .btn-navigate {
        @extend %set-absolute;
        padding: 0;
        margin: 0;
        background: transparent;
        text-decoration: none;
        outline: none;
        opacity: 0.7;
        top: 45%;
        font-size: 4em;
        color: $curious-blue;
        &:not([disabled]):hover {
            outline: none;
            box-shadow: none;
            opacity: 0.6;
        }
    }
    .floating-buttons {
        @extend %set-absolute;
        top: $pad;
        right: multiply($pad, 2);
    }
    .btn-navigate[disabled] {
        opacity: 0.3;
    }
    .btn-prev {
        left: multiply($pad, 0.2);
    }
    .btn-next {
        right: multiply($pad, 0.2);
    }
    .kv-zoom-title {
        font-weight: 300;
        color: $mountain-mist;
        max-width: 50%;
        overflow: hidden;
        white-space: nowrap;
        text-overflow: ellipsis;
    }
}

.file-input-new {
    .file-preview {
        @extend %set-hidden;
    }
    .close {
        @extend %set-hidden;
    }
    .glyphicon-file {
        @extend %set-hidden;
    }
    .fileinput-remove-button {
        @extend %set-hidden;
    }
    .fileinput-upload-button {
        @extend %set-hidden;
    }
    .no-browse {
        .input-group-btn {
            @extend %set-hidden;
        }
        .form-control {
            border-top-right-radius: $radius;
            border-bottom-right-radius: $radius;
        }
    }
}

.file-input-ajax-new {
    .fileinput-remove-button {
        @extend %set-hidden;
    }
    .fileinput-upload-button {
        @extend %set-hidden;
    }
    .no-browse {
        .input-group-btn {
            @extend %set-hidden;
        }
        .form-control {
            border-top-right-radius: $radius;
            border-bottom-right-radius: $radius;
        }
    }
}

.file-caption-main {
    width: 100%;
}

.file-thumb-loading {
    background: transparent $url-0 no-repeat scroll center center content-box !important;
}

.file-drop-zone {
    border: $border dashed $silver-chalice;
    border-radius: $radius;
    height: 100%;
    text-align: center;
    vertical-align: middle;
    margin: multiply($pad, 2.4) multiply($pad, 3) multiply($pad, 2.4) multiply($pad, 2.4);
    padding: $pad;
    &.clickable {
        &:hover {
            border: multiply($border, 2) dashed $mountain-mist;
        }
        &:focus {
            border: multiply($border, 2) solid $viking;
        }
    }
    .file-preview-thumbnails {
        cursor: default;
    }
}

.file-drop-zone-title {
    color: $silver-chalice;
    font-size: 1.6em;
    padding: multiply($pad, 17) multiply($pad, 2);
    cursor: default;
}

.file-highlighted {
    border: multiply($border, 2) dashed $mountain-mist !important;
    background-color: $gallery;
}

.file-uploading {
    background: $url-1 no-repeat center bottom multiply($pad, 2);
    opacity: 0.65;
}

.file-zoom-fullscreen {
    .modal-dialog {
        min-width: 100%;
        margin: 0;
    }
    .modal-content {
        border-radius: 0;
        box-shadow: none;
        min-height: 100vh;
    }
    .modal-body {
        overflow-y: auto;
    }
}

.floating-buttons {
    z-index: 3000;
    .btn-kv {
        margin-left: multiply($pad, 0.6);
        z-index: 3000;
    }
}

.file-zoom-content {
    height: multiply($pad, 96);
    text-align: center;
    .file-preview-image {
        max-height: 100%;
    }
    .file-preview-video {
        max-height: 100%;
    }
    > .file-object {
        &.type-image {
            @extend %set-object;
            height: auto;
            min-height: inherit;
        }
        &.type-video {
            @extend %set-object-video;
        }
        &.type-flash {
            @extend %set-object-video;
        }
        &.type-audio {
            width: auto;
            height: multiply($pad, 6);
        }
        &.type-pdf {
            @extend %set-object-default;
        }
        &.type-html {
            @extend %set-object-default;
        }
        &.type-text {
            @extend %set-object-default;
        }
        &.type-default {
            @extend %set-object-default;
        }
    }
}

@media(min-width: 576px) {
    .file-zoom-dialog .modal-dialog {
        max-width: 500px;
    }
}

@media(min-width: 992px) {
    .file-zoom-dialog .modal-lg {
        max-width: 800px;
    }
}

@media(max-width: 767px) {
    .file-preview-thumbnails {
        display: flex;
        justify-content: center;
        align-items: center;
        flex-direction: column;
    }
    .file-zoom-dialog .modal-header {
        flex-direction: column;
    }
}

@media(max-width: 350px) {
    .krajee-default.file-preview-frame .kv-file-content {
        width: multiply($pad, 32);
    }
}

@media(max-width: 420px) {
    .krajee-default.file-preview-frame .kv-file-content.kv-pdf-rendered {
        width: 100%;
    }
}

.file-loading[dir=rtl]:before {
    background: transparent $url-0 top right no-repeat;
    padding-left: 0;
    padding-right: multiply($pad, 4);
}

.file-sortable .file-drag-handle {
    cursor: move;
    opacity: 1;
    &:hover {
        opacity: 0.7;
    }
}

.clickable .file-drop-zone-title {
    cursor: pointer;
}

.kv-zoom-actions .btn-kv {
    margin-left: multiply($pad, 0.6);
}

.file-preview-initial.sortable-chosen {
    background-color: $link-water;
}