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129 lines
3.4 KiB
129 lines
3.4 KiB
10 months ago
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/**
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* @file
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* Navigation in header.
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*/
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@import "../base/media-queries.pcss.css";
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.header-nav {
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position: fixed;
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z-index: 501; /* Appear above overlay and contextual links in header. */
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inset-block-start: 0;
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inset-inline-start: 100%;
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visibility: hidden;
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overflow: auto;
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/* Ensure that header nav not use additional space and force system branding
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* block text to unnecessarily wrap. */
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flex-basis: max-content;
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width: 100%;
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max-width: var(--mobile-nav-width);
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height: 100%;
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padding-block: 0 var(--sp);
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padding-inline-start: var(--sp);
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padding-inline-end: var(--sp);
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/* Create room for the "close" button. We cannot use margin because the
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* mobile navigation needs to slide beneath the button, but we also cannot
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* use padding because that would enable the button to scroll out of the
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* viewport on short screens. */
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border-block-start: solid var(--color--white) calc(var(--sp3) + var(--drupal-displace-offset-top, 0px));
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background-color: var(--color--white);
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box-shadow: 0 0 72px rgba(0, 0, 0, 0.1);
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&.is-active {
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visibility: visible;
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transform: translateX(calc(-100% - var(--drupal-displace-offset-right, 0px))); /* LTR */
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&:dir(rtl) {
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transform: translateX(calc(100% + var(--drupal-displace-offset-left, 0px)));
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}
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}
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@media (--sm) {
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border-top-width: calc(var(--sp5) + var(--drupal-displace-offset-top, 0px));
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}
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@media (--md) {
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padding-block-end: var(--sp3);
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padding-inline-start: var(--sp3);
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border-top-width: calc(var(--sp7) + var(--drupal-displace-offset-top, 0px));
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}
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@media (--lg) {
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grid-column: 5 / 14;
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}
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/*
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* Ensure top border has the same color as the background when in forced colors.
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*/
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@media (forced-colors: active) {
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border-top-color: canvas;
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}
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}
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/*
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* Only apply transition styles when JS is loaded. This
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* works around https://bugs.chromium.org/p/chromium/issues/detail?id=332189
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*/
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html.js .header-nav {
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transition: visibility 0.2s, transform 0.2s;
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}
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body:not(.is-always-mobile-nav) .header-nav {
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@media (--nav) {
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position: static;
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display: flex;
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visibility: visible;
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overflow: visible;
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grid-column: 5 / 15;
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align-items: center;
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justify-content: flex-end;
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max-width: none;
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height: var(--header-height-wide-when-fixed);
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margin-block-start: auto;
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padding-block: 0;
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padding-inline-start: 0;
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padding-inline-end: 0;
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transition: transform 0.2s;
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transform: none;
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border-block-start: 0;
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box-shadow: none;
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}
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}
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body.is-always-mobile-nav {
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& .header-nav {
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@media (--nav) {
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overflow: auto;
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max-width: calc((7 * (var(--grid-col-width) + var(--grid-gap))));
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padding-inline-end: var(--sp);
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transition: transform 0.2s, visibility 0.2s;
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border-top-width: calc(var(--drupal-displace-offset-top, 0px) + var(--sp11));
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}
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@media (--grid-max) {
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max-width: calc(100vw - (var(--max-width) + var(--content-left)) + ((7 * (var(--grid-col-width) + var(--grid-gap)))));
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padding-inline-end: calc(100vw - (var(--max-width) + var(--content-left) - var(--sp)));
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}
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}
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}
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.header-nav-overlay {
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position: fixed;
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z-index: 101;
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inset-block-start: 0;
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inset-inline-start: 0;
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display: none;
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width: 100%;
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height: 100vh;
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opacity: 0.2;
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background: var(--color--gray-5);
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@media (forced-colors: active) {
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background: canvastext;
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}
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@nest .is-overlay-active & {
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display: block;
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}
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}
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