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// Name: Off-canvas
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// Description: Component to create an off-canvas sidebar
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//
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// Component: `uk-offcanvas`
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//
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// Sub-objects: `uk-offcanvas-bar`
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// `uk-offcanvas-container`
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// `uk-offcanvas-content`
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// `uk-offcanvas-page`
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//
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// Adopted: `uk-offcanvas-close`
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//
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// Modifiers: `uk-offcanvas-flip`
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// `uk-offcanvas-bar-animation`
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// `uk-offcanvas-reveal`
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// `uk-offcanvas-overlay`
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// `uk-offcanvas-content-animation`
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//
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// States: `uk-open`
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//
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// ========================================================================
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// Variables
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// ========================================================================
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@offcanvas-z-index: @global-z-index;
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@offcanvas-bar-width: 270px;
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@offcanvas-bar-padding-vertical: @global-margin;
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@offcanvas-bar-padding-horizontal: @global-margin;
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@offcanvas-bar-background: @global-secondary-background;
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@offcanvas-bar-color-mode: light;
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@offcanvas-bar-width-m: 350px;
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@offcanvas-bar-padding-vertical-m: @global-medium-gutter;
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@offcanvas-bar-padding-horizontal-m: @global-medium-gutter;
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@offcanvas-close-position: 20px;
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@offcanvas-close-padding: 5px;
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@offcanvas-overlay-background: rgba(0,0,0,0.1);
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/* ========================================================================
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Component: Off-canvas
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========================================================================== */
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/*
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* 1. Hide by default
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* 2. Set position
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*/
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.uk-offcanvas {
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/* 1 */
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display: none;
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/* 2 */
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position: fixed;
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top: 0;
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bottom: 0;
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left: 0;
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z-index: @offcanvas-z-index;
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}
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/*
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* Flip modifier
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*/
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.uk-offcanvas-flip .uk-offcanvas {
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right: 0;
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left: auto;
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}
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/* Bar
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========================================================================== */
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/*
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* 1. Set position
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* 2. Size and style
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* 3. Allow scrolling
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* 4. Transform
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*/
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.uk-offcanvas-bar {
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/* 1 */
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position: absolute;
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top: 0;
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bottom: 0;
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left: 0;
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/* 2 */
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box-sizing: border-box;
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width: @offcanvas-bar-width;
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padding: @offcanvas-bar-padding-vertical @offcanvas-bar-padding-horizontal;
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background: @offcanvas-bar-background;
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/* 3 */
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overflow-y: auto;
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-webkit-overflow-scrolling: touch;
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/* 4 */
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-webkit-transform: translateX(-100%);
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transform: translateX(-100%);
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.hook-offcanvas-bar;
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}
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/* Tablet landscape and bigger */
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@media (min-width: @breakpoint-medium) {
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.uk-offcanvas-bar {
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width: @offcanvas-bar-width-m;
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padding: @offcanvas-bar-padding-vertical-m @offcanvas-bar-padding-horizontal-m;
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}
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}
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// Color Mode
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.uk-offcanvas-bar:extend(.uk-light all) when (@offcanvas-bar-color-mode = light) {}
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.uk-offcanvas-bar:extend(.uk-dark all) when (@offcanvas-bar-color-mode = dark) {}
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/* Flip modifier */
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.uk-offcanvas-flip .uk-offcanvas-bar {
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left: auto;
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right: 0;
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-webkit-transform: translateX(100%);
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transform: translateX(100%);
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}
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/*
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* Open
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*/
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.uk-open > .uk-offcanvas-bar {
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-webkit-transform: translateX(0);
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transform: translateX(0);
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}
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/*
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* Slide Animation (Used in slide and push mode)
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*/
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.uk-offcanvas-bar-animation {
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-webkit-transition: -webkit-transform 0.3s ease-out;
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transition: transform 0.3s ease-out;
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}
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/*
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* Reveal Animation
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* 1. Set position
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* 2. Clip the bar
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* 3. Animation
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* 4. Reset transform
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*/
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.uk-offcanvas-reveal {
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/* 1 */
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position: absolute;
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top: 0;
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bottom: 0;
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left: 0;
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/* 2 */
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width: 0;
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overflow: hidden;
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/* 3 */
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-webkit-transition: width 0.3s ease-out;
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transition: width 0.3s ease-out;
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}
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.uk-offcanvas-reveal .uk-offcanvas-bar {
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/* 4 */
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-webkit-transform: translateX(0);
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transform: translateX(0);
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}
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.uk-open > .uk-offcanvas-reveal { width: @offcanvas-bar-width; }
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/* Tablet landscape and bigger */
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@media (min-width: @breakpoint-medium) {
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.uk-open > .uk-offcanvas-reveal { width: @offcanvas-bar-width-m; }
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}
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/*
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* Flip modifier
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*/
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.uk-offcanvas-flip .uk-offcanvas-reveal {
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right: 0;
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left: auto;
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}
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/* Close
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* Adopts `uk-close`
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========================================================================== */
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.uk-offcanvas-close {
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position: absolute;
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z-index: @offcanvas-z-index;
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top: @offcanvas-close-position;
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right: @offcanvas-close-position;
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padding: @offcanvas-close-padding;
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.hook-offcanvas-close;
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}
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/* Overlay
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========================================================================== */
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/*
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* Overlay the whole page. Needed for the `::before`
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* 1. Using `100vw` so no modification is needed when off-canvas is flipped
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* 2. Allow for closing with swipe gesture on devices with pointer events.
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*/
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.uk-offcanvas-overlay {
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/* 1 */
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width: 100vw;
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/* 2 */
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touch-action: none;
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}
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/*
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* 1. Mask the whole page
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* 2. Fade-in transition
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*/
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.uk-offcanvas-overlay::before {
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/* 1 */
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content: "";
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position: absolute;
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top: 0;
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bottom: 0;
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left: 0;
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right: 0;
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background: @offcanvas-overlay-background;
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/* 2 */
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opacity: 0;
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-webkit-transition: opacity 0.15s linear;
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transition: opacity 0.15s linear;
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.hook-offcanvas-overlay;
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}
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.uk-offcanvas-overlay.uk-open::before { opacity: 1; }
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/* Container
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========================================================================== */
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/*
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* Prevent horizontal scrollbar when the content is slide-out
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* Has to be on the `html` element too to make it work on the `body`
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*/
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.uk-offcanvas-page,
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.uk-offcanvas-container { overflow-x: hidden; }
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/*
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* Prevent all scrollbars if overlay is used
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*/
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.uk-offcanvas-container-overlay { overflow: hidden; }
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/* Content
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========================================================================== */
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/*
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* Prepare slide-out animation (Used in reveal and push mode)
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* Using `position: left` instead of `transform` because position `fixed` elements like sticky navbars
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* lose their fixed state and behaves like `absolute` within a transformed container
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* Note: JS sets a fixed width and height so the page can slide-out without shrinking
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* 1. Smooth scrolling
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*/
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.uk-offcanvas-container .uk-offcanvas-content {
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position: relative;
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left: 0;
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-webkit-transition: left 0.3s ease-out;
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transition: left 0.3s ease-out;
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/* 1 */
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-webkit-overflow-scrolling: touch;
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}
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/* Disable scrolling if overlay mode */
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.uk-offcanvas-overlay .uk-offcanvas-content { overflow-y: hidden; }
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/*
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* Activate slide-out animation
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*/
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:not(.uk-offcanvas-flip) > .uk-offcanvas-content-animation { left: @offcanvas-bar-width; }
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.uk-offcanvas-flip > .uk-offcanvas-content-animation { left: -@offcanvas-bar-width; }
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/* Tablet landscape and bigger */
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@media (min-width: @breakpoint-medium) {
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:not(.uk-offcanvas-flip) > .uk-offcanvas-content-animation { left: @offcanvas-bar-width-m; }
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.uk-offcanvas-flip > .uk-offcanvas-content-animation { left: -@offcanvas-bar-width-m; }
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}
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// Hooks
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// ========================================================================
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.hook-offcanvas-misc;
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.hook-offcanvas-bar() {}
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.hook-offcanvas-close() {}
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.hook-offcanvas-overlay() {}
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.hook-offcanvas-misc() {}
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