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feat(panel): theme selector (System / Light / Dark) with persistence #232

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Merged
upsetbit merged 1 commit into from
Jun 7, 2026
Merged

feat(panel): theme selector (System / Light / Dark) with persistence #232

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97 changes: 97 additions & 0 deletions internal/panel/assets/css/components/settings.css
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Original file line number Diff line number Diff line change
@@ -0,0 +1,97 @@
/* Settings page chrome. Cards stack vertically with consistent
spacing; theme picker uses a radiogroup of pill cards. Pulls every
dimension from tokens — the cards themselves swap palette when the
theme variant changes. */

.settings-card {
background: var(--bg-elev-1);
border-radius: var(--radius-md);
padding: var(--space-6);
margin: 0 0 var(--space-5);
}

.settings-card h2 {
font-size: var(--text-md);
font-weight: var(--w-medium);
margin: 0 0 var(--space-4);
color: var(--text-1);
}

.settings-card dl {
display: grid;
grid-template-columns: 110px 1fr;
gap: var(--space-2) var(--space-4);
margin: 0 0 var(--space-4);
font-size: var(--text-sm);
}

.settings-card dt {
color: var(--text-3);
text-transform: uppercase;
letter-spacing: 0.06em;
font-size: var(--text-xs);
padding-top: 2px;
}

.settings-card dd {
margin: 0;
color: var(--text-1);
}

.settings-hint {
margin: 0 0 var(--space-4);
color: var(--text-3);
font-size: var(--text-sm);
}

.theme-options {
display: grid;
grid-template-columns: repeat(3, 1fr);
gap: var(--space-3);
}

@media (max-width: 700px) {
.theme-options {
grid-template-columns: 1fr;
}
}

.theme-option {
display: flex;
flex-direction: column;
gap: var(--space-1);
padding: var(--space-4);
background: var(--bg-elev-2);
border: 1px solid var(--divider);
border-radius: var(--radius-sm);
cursor: pointer;
user-select: none;
transition: border-color var(--duration-fast) var(--ease),
background var(--duration-fast) var(--ease);
}

.theme-option:hover {
border-color: var(--text-3);
}

.theme-option.is-active {
border-color: var(--accent);
background: var(--bg-elev-1);
}

.theme-option input[type="radio"] {
position: absolute;
opacity: 0;
pointer-events: none;
}

.theme-option-label {
font-size: var(--text-sm);
font-weight: var(--w-medium);
color: var(--text-1);
}

.theme-option-hint {
font-size: var(--text-xs);
color: var(--text-3);
}
40 changes: 39 additions & 1 deletion internal/panel/assets/css/tokens.css
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Expand Up @@ -4,7 +4,7 @@
Other CSS layers reference these vars, never literals. */

:root {
/* Dark palette ---------------------------------------------------- */
/* Dark palette (default) ----------------------------------------- */
--bg: #0f1117;
--bg-elev-1: #1a1d27;
--bg-elev-2: #232733;
Expand Down Expand Up @@ -78,3 +78,41 @@
--agent-hermes: #5be0d6;
--agent-hermes-soft: #5be0d626;
}

/* Light palette ---------------------------------------------------- */
/* Applied when the user picks Light explicitly OR when the user is
on System and the OS reports prefers-color-scheme: light. The
palette mirrors the dark one (bg → elev-1 → elev-2 = depth steps,
text-1 strongest → text-3 quietest, accent + softs) so every
component picks up the swap with no per-rule changes. */
[data-theme="light"] {
--bg: #fafbfc;
--bg-elev-1: #f1f3f7;
--bg-elev-2: #e3e7ee;
--text-1: #1c1f29;
--text-2: #4d5468;
--text-3: #7d8497;
--accent: #4a5af0;
--accent-soft: #4a5af029;
--ok: #1f9d55;
--danger: #d63648;
--divider: #d8dde6;
--warn: #c48415;
}

@media (prefers-color-scheme: light) {
[data-theme="system"] {
--bg: #fafbfc;
--bg-elev-1: #f1f3f7;
--bg-elev-2: #e3e7ee;
--text-1: #1c1f29;
--text-2: #4d5468;
--text-3: #7d8497;
--accent: #4a5af0;
--accent-soft: #4a5af029;
--ok: #1f9d55;
--danger: #d63648;
--divider: #d8dde6;
--warn: #c48415;
}
}
1 change: 1 addition & 0 deletions internal/panel/assets/style.css
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Expand Up @@ -16,6 +16,7 @@
@import url("css/components/dashboard.css");
@import url("css/components/agent-badge.css");
@import url("css/components/active-filters.css");
@import url("css/components/settings.css");

/* Layout */
.app {
Expand Down
13 changes: 13 additions & 0 deletions internal/panel/templates/base.html
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Expand Up @@ -3,6 +3,19 @@
<head>
<meta charset="utf-8">
<title>{{.Title}} · prosa</title>
<script>
/* Apply theme BEFORE stylesheets load to avoid FOUC. Persists in
localStorage; unknown / missing → "dark" (the historical default). */
(function () {
try {
var t = localStorage.getItem("prosa-theme");
if (t !== "light" && t !== "system") t = "dark";
document.documentElement.dataset.theme = t;
} catch (_) {
document.documentElement.dataset.theme = "dark";
}
})();
</script>
<link rel="stylesheet" href="{{assetPath "style.css"}}">
<script src="{{assetPath "htmx.min.js"}}"></script>
</head>
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33 changes: 33 additions & 0 deletions internal/panel/templates/settings.html
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Expand Up @@ -14,4 +14,37 @@ <h2>Logged in as</h2>
<button class="btn" type="submit">Log out</button>
</form>
</section>

<section class="settings-card"
x-data="{
theme: localStorage.getItem('prosa-theme') || 'dark',
apply(t) {
this.theme = t;
localStorage.setItem('prosa-theme', t);
document.documentElement.dataset.theme = t;
}
}">
<h2>Appearance</h2>
<p class="settings-hint">Applies immediately. Persists across reloads (per-browser).</p>
<div class="theme-options" role="radiogroup" aria-label="Theme">
<label class="theme-option" :class="{ 'is-active': theme === 'system' }">
<input type="radio" name="theme" value="system"
:checked="theme === 'system'" @change="apply('system')">
<span class="theme-option-label">System</span>
<span class="theme-option-hint">Follow OS preference</span>
</label>
<label class="theme-option" :class="{ 'is-active': theme === 'light' }">
<input type="radio" name="theme" value="light"
:checked="theme === 'light'" @change="apply('light')">
<span class="theme-option-label">Light</span>
<span class="theme-option-hint">Always light</span>
</label>
<label class="theme-option" :class="{ 'is-active': theme === 'dark' }">
<input type="radio" name="theme" value="dark"
:checked="theme === 'dark'" @change="apply('dark')">
<span class="theme-option-label">Dark</span>
<span class="theme-option-hint">Always dark (default)</span>
</label>
</div>
</section>
{{end}}
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