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92 lines
1.9 KiB
92 lines
1.9 KiB
12 months ago
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/**
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* @file
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* Sticky Header Toggle Button.
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*
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* This button shows on the left hand side of the header (in LTR layouts), and
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* toggles fixing the header to the top of the viewport.
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*/
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@import "../base/media-queries.pcss.css";
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.sticky-header-toggle {
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display: none;
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@media (--nav) {
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display: flex;
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flex-shrink: 0;
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align-items: center;
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justify-content: center;
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width: var(--content-left);
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height: var(--sp6);
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pointer-events: none;
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opacity: 0;
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border: 0;
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outline: 0;
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background-color: var(--color--primary-50);
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&:focus {
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cursor: pointer;
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pointer-events: auto;
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opacity: 1;
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outline: solid 2px var(--color--white);
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outline-offset: -4px;
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}
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}
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}
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body:not(.is-always-mobile-nav) .is-fixed .sticky-header-toggle {
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@media (--nav) {
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visibility: visible;
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}
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}
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body.is-always-mobile-nav .sticky-header-toggle {
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@media (--nav) {
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visibility: hidden;
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}
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}
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.sticky-header-toggle__icon {
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--icon-bar-height: 3px;
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--icon-bar-space: 7px;
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display: flex;
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flex-direction: column;
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justify-content: space-between;
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width: var(--sp2);
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height: calc((var(--icon-bar-height) * 3) + (var(--icon-bar-space) * 2));
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/* Height = 3 bars + 2 spaces */
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transition: opacity 0.2s;
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pointer-events: none;
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transform-style: preserve-3d;
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& > span {
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display: block;
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width: 100%;
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height: var(--icon-bar-height);
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transition: transform 0.2s;
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transform-origin: center;
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background-color: var(--color--white);
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}
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}
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.is-fixed .sticky-header-toggle {
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cursor: pointer;
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pointer-events: auto;
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opacity: 1;
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}
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[aria-checked="true"] .sticky-header-toggle__icon {
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& > span:nth-child(1) {
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transform: translateY(calc(var(--icon-bar-height) + var(--icon-bar-space))) rotate(-45deg);
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}
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& > span:nth-child(2) {
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opacity: 0;
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}
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& > span:nth-child(3) {
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transform: translateY(calc(0px - var(--icon-bar-height) - var(--icon-bar-space))) rotate(45deg);
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}
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}
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