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Add Dark Mode #5

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Merged
rcosta358 merged 1 commit into from
Oct 4, 2026
Merged

Add Dark Mode #5

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1 change: 1 addition & 0 deletions _includes/head_custom.html
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Expand Up @@ -2,3 +2,4 @@
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link href="https://fonts.googleapis.com/css2?family=Atkinson+Hyperlegible:wght@400;700&family=JetBrains+Mono:wght@400;600&display=swap" rel="stylesheet">
<link rel="sitemap" type="application/xml" title="Sitemap" href="{{ '/sitemap.xml' | absolute_url }}">
<script src="{{ '/assets/js/appearance.js' | relative_url }}"></script>
11 changes: 11 additions & 0 deletions _includes/header_custom.html
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<div class="appearance-control">
<button id="appearance" type="button" aria-label="Switch to dark mode" title="Switch to dark mode">
<svg class="appearance-moon" viewBox="0 0 24 24" aria-hidden="true" fill="none" stroke="currentColor" stroke-width="1.75" stroke-linecap="round" stroke-linejoin="round">
<path d="M20.5 13.2A8.5 8.5 0 0 1 10.8 3.5a8.5 8.5 0 1 0 9.7 9.7Z" />
</svg>
<svg class="appearance-sun" viewBox="0 0 24 24" aria-hidden="true" fill="none" stroke="currentColor" stroke-width="1.75" stroke-linecap="round">
<circle cx="12" cy="12" r="4" />
<path d="M12 2v2m0 16v2M2 12h2m16 0h2M4.9 4.9l1.4 1.4m11.4 11.4 1.4 1.4m0-14.2-1.4 1.4M6.3 17.7l-1.4 1.4" />
</svg>
</button>
</div>
154 changes: 154 additions & 0 deletions _sass/custom/appearance.scss
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.search-input::placeholder, .search-icon { color: #66707b; }

.appearance-control {
display: none;
align-items: center;
padding: .5rem 1rem;
flex-shrink: 0;
font-size: .75rem;

button {
display: grid;
place-items: center;
width: 2.5rem;
height: 2.5rem;
padding: .5rem;
border: 0;
border-radius: .5rem;
background: transparent;
color: #2a2f36;
font: inherit;
cursor: pointer;
}
}

:root[data-theme] .appearance-control { display: flex; }
.appearance-control button:hover { background: #e5e9ed; }
.appearance-control svg { width: 1.25rem; height: 1.25rem; }
.appearance-sun { display: none; }
:root[data-theme="dark"] .appearance-moon { display: none; }
:root[data-theme="dark"] .appearance-sun { display: block; }

.appearance-control button:focus-visible {
outline: 2px solid #5f7ea1;
outline-offset: 3px;
}

// keep appearance available when the mobile navigation is collapsed
@media (max-width: 49.99rem) {
body .side-bar + .main .main-header,
body .side-bar + .main .main-header.nav-open { display: flex; }
.search { min-width: 0; }
.appearance-control { padding-left: 0; }
}

@mixin dark-appearance {
color-scheme: dark;

body { color: #c9d2de; background: #141a23; }
h1, h2, h3, h4, h5, h6, #toctitle { color: #edf2f8; }
a, .main-content a { color: #9cc9ec; }
a:not([class]) { text-decoration-color: #526b82; }
a:not([class]):hover { text-decoration-color: #9cc9ec; }
:focus-visible { outline-color: #9cc9ec; }
hr { background: #303c4c; }

.side-bar {
background: radial-gradient(ellipse at top left, rgba(104, 151, 194, .08), transparent 65%), #191f29;
border-color: #303c4c;
}
.site-header, .main-header, .site-nav, .site-footer { border-color: #303c4c; }
body .side-bar + .main .main-header { background: #141a23; }
.site-title { color: #edf2f8 !important; }
.site-title:hover, .site-button:hover { background: #242f3e; }
.site-footer { color: #9baabc; }
.icon, .site-button, .nav-list .nav-list-item .nav-list-expander { color: #9cc9ec; }
.nav-list .nav-list-item > .nav-list .nav-list-item .nav-list-link,
.nav-list .nav-list-item > .nav-list .nav-list-item .nav-list-expander { color: #b8c7d8; }
.nav-list .nav-list-item .nav-list-link:hover,
.nav-list .nav-list-item .nav-list-link.active,
.nav-list .nav-list-item .nav-list-expander:hover {
background: linear-gradient(90deg, rgba(104, 151, 194, .04), rgba(104, 151, 194, .16));
color: #d1e9ff;
}
.nav-list-link.active { box-shadow: inset 3px 0 #8dbce2; }
.breadcrumb-nav-list-item::after { color: #77889b; }

.search-input, .search-results, .search-result { color: #c9d2de; background: #191f29; }
.search-input { background: #141a23; }
.search-input::placeholder, .search-icon { color: #9baabc; }
.search-result:hover, .search-result.active { background: #243244; }
.search-result-title, .search-result-doc, .search-result-section { color: #d1e9ff; }
.search-result-preview { color: #b8c7d8; }
.search-result-previews { border-color: #405169; }
.search-result-doc.search-result-doc-parent { opacity: 1; color: #9baabc; }
.search-result-doc .search-result-icon { color: #9baabc; }
.search-result-rel-url { color: #9baabc; }
.search-result-highlight { color: #edf2f8; }
.search-results { border: 1px solid #303c4c; box-shadow: 0 16px 40px #0006; }

.appearance-control { color: #9baabc; }
.appearance-control button { color: #dce6f2; }
.appearance-control button:hover { background: #29394c; }
.appearance-control button:focus-visible { outline-color: #9cc9ec; }

.main-content :not(pre) > code { color: #d1e9ff; background: #253142; border-color: #35465b; }
.main-content pre.highlight,
.main-content div.highlighter-rouge,
.main-content #lj-editor,
.main-content .lj-output {
background: #101620;
border-color: #344256;
box-shadow: none;
}
.main-content .highlight .c,
.main-content .highlight .cm,
.main-content .highlight .c1,
.main-content .highlight .cs { color: #9baabc; }
.main-content img:not(.home-banner img) { border-color: #344256; box-shadow: none; }
.home-banner img { filter: brightness(.82) saturate(.9); }
.home-banner { border: 1px solid #344256; background: #101620; }
.main-content blockquote { background: #1d2836; border-color: #718da9; }

.card-panel, .page-nav-link {
background: #1c2531;
border-color: #334154;
box-shadow: none;
}
.card-panel:hover, .page-nav-link:hover { background: #232f3e; border-color: #6383a2; box-shadow: none; }
.page-nav-label { color: #9baabc; }
.page-nav-title { color: #dce6f2; }
.page-nav-link:focus-visible { outline: 2px solid #9cc9ec; outline-offset: 3px; box-shadow: none; }
.main-content .home-button { background: #9cc9ec; color: #142332; box-shadow: none; }
.main-content .home-button:hover { background: #bcdef7; color: #142332; }
th, td { background: #1c2531; border-color: #334154; }
thead th { background: #253142; border-color: #405169; color: #edf2f8; }
.table-wrapper { border: 1px solid #334154; box-shadow: none; }

@each $name, $accent, $surface in (note, #9cc9ec, #1d2c3d), (tip, #a7d9b9, #1d302d), (warn, #e5c784, #322e23) {
.main-content p.#{$name}, .main-content blockquote.#{$name} {
background: $surface;
border-color: $accent;
box-shadow: none;
&::before, > .#{$name}-title { color: $accent; }
}
}

.lj-toolbar label { color: #b8c7d8; }
.lj-toolbar select { color: #dce6f2; background: #202b39; border-color: #405169; }
.lj-toolbar select:hover { background: #29394c; border-color: #8dbce2; }
.lj-toolbar button { color: #9cc9ec; border-color: #405169; }
.lj-toolbar button:hover:not(:disabled) { background: #29394c; border-color: #8dbce2; }
.lj-toolbar #lj-verify, .lj-toolbar #lj-reset { color: #142332; background: #9cc9ec; border-color: #9cc9ec; }
.lj-toolbar #lj-verify:hover:not(:disabled), .lj-toolbar #lj-reset:hover { color: #142332; background: #bcdef7; border-color: #bcdef7; }
.lj-toolbar #lj-verify[data-state="busy"] { color: #fff; background: #a8323d; border-color: #cb6871; }
.lj-toolbar #lj-verify[data-state="busy"]:hover { background: #bd3d49; }
.lj-toolbar button:disabled, .lj-toolbar #lj-verify:disabled { color: #9baabc; background: #293342; border-color: #405169; }
}

:root[data-theme="dark"] { @include dark-appearance; }

// the system theme also works without JavaScript
@media (prefers-color-scheme: dark) {
:root:not([data-theme]) { @include dark-appearance; }
}
20 changes: 17 additions & 3 deletions _sass/custom/custom.scss
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.site-header {
border-bottom: 1px solid rgba(23, 26, 31, 0.08);
.site-header,
.main-header {
border-bottom: 0;
}

.main-content > hr {
display: none;
}

.site-title {
Expand Down Expand Up @@ -248,6 +253,14 @@
list-style: disc;
}

.main-content ul > li::before {
content: none;
}

.main-content .task-list-item {
list-style: none;
}

.main-content li > ul,
.main-content li > ol {
margin-top: 0.35rem;
Expand Down Expand Up @@ -333,7 +346,6 @@
gap: 0.75rem;
margin: 2.25rem 0 0.25rem;
padding-top: 1.25rem;
border-top: 1px solid rgba(17, 24, 39, 0.08);
}

.page-nav-link {
Expand Down Expand Up @@ -402,3 +414,5 @@
grid-template-columns: repeat(2, minmax(0, 1fr));
}
}

@import "custom/appearance";
35 changes: 35 additions & 0 deletions assets/js/appearance.js
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(() => {
const root = document.documentElement;
const system = window.matchMedia('(prefers-color-scheme: dark)');
const key = 'liquidjava-appearance';
let preference = 'system';
let button;
try {
const saved = localStorage.getItem(key);
if (['light', 'dark'].includes(saved)) preference = saved;
} catch (_) { /* appearance still works when storage is unavailable */ }

function apply() {
root.dataset.theme = preference === 'system'
? (system.matches ? 'dark' : 'light') : preference;
if (button) {
const label = root.dataset.theme === 'dark' ? 'Switch to light mode' : 'Switch to dark mode';
button.setAttribute('aria-label', label);
button.title = label;
}
}
apply();
system.addEventListener('change', apply);

document.addEventListener('DOMContentLoaded', () => {
button = document.getElementById('appearance');
apply();
button.addEventListener('click', () => {
preference = root.dataset.theme === 'dark' ? 'light' : 'dark';
try {
localStorage.setItem(key, preference);
} catch (_) { /* keep the selection for this page */ }
apply();
});
});
})();
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