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1 Commits

Author SHA1 Message Date
Alex Cheema
19a21e9065 feat(dashboard): add light/dark mode toggle with warm parchment palette
Adds a theme system to the EXO dashboard with a "Mission Control, Dawn
Shift" light mode — warm parchment backgrounds (oklch(0.97 0.015 80))
and deep amber/brass accents (oklch(0.50 0.14 65)) that feel premium
rather than cold.

Changes:
- dashboard/src/lib/stores/theme.svelte.ts: new Svelte 5 rune store,
  persists choice to localStorage under 'exo-theme'
- dashboard/src/app.html: FOUC prevention — html starts as class="dark",
  inline script reads localStorage and switches to class="light" before
  first paint
- dashboard/src/routes/+layout.svelte: calls theme.init() on mount to
  sync rune state with the DOM class
- dashboard/src/lib/components/HeaderNav.svelte: sun/moon toggle button
  in the right nav area
- dashboard/src/app.css: full html.light palette + utility overrides
  (scrollbar, logo filter, graph links, scanlines, etc.)

No new npm dependencies — avoids mode-watcher entirely.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-02-18 12:36:51 -08:00
5 changed files with 318 additions and 5 deletions

View File

@@ -16,9 +16,10 @@
/* Gotham-inspired accent colors */
--exo-grid: oklch(0.25 0 0);
--exo-scanline: oklch(0.15 0 0);
--exo-glow-yellow: 0 0 20px oklch(0.85 0.18 85 / 0.3);
--exo-glow-yellow-strong: 0 0 40px oklch(0.85 0.18 85 / 0.5);
--exo-glow-yellow: oklch(0.85 0.18 85 / 0.3);
--exo-glow-yellow-strong: oklch(0.85 0.18 85 / 0.5);
--exo-bg-hover: oklch(0.18 0 0);
/* Theme Variables */
--radius: 0.375rem;
--background: var(--exo-black);
@@ -41,6 +42,237 @@
--ring: var(--exo-yellow);
}
/* ============================================================
LIGHT THEME — "Mission Control, Dawn Shift"
Warm parchment + deep amber. Applied when <html> has .light class.
============================================================ */
html.light {
/* EXO brand palette — warm amber shift */
--exo-black: oklch(0.97 0.015 80);
--exo-dark-gray: oklch(0.92 0.012 80);
--exo-medium-gray: oklch(0.83 0.009 78);
--exo-light-gray: oklch(0.50 0.018 75);
--exo-yellow: oklch(0.50 0.14 65);
--exo-yellow-darker: oklch(0.40 0.13 65);
--exo-yellow-glow: oklch(0.60 0.14 65);
--exo-grid: oklch(0.88 0.009 80);
--exo-scanline: oklch(0.93 0.010 80);
--exo-glow-yellow: oklch(0.50 0.14 65 / 0.12);
--exo-glow-yellow-strong: oklch(0.50 0.14 65 / 0.22);
--exo-bg-hover: oklch(0.89 0.010 80);
/* Semantic tokens */
--background: oklch(0.97 0.015 80);
--foreground: oklch(0.13 0.015 75);
--card: oklch(0.92 0.012 80);
--card-foreground: oklch(0.13 0.015 75);
--popover: oklch(0.95 0.012 80);
--popover-foreground: oklch(0.13 0.015 75);
--primary: oklch(0.50 0.14 65);
--primary-foreground: oklch(0.97 0.015 80);
--secondary: oklch(0.88 0.008 80);
--secondary-foreground: oklch(0.15 0.012 75);
--muted: oklch(0.90 0.009 80);
--muted-foreground: oklch(0.50 0.018 75);
--accent: oklch(0.88 0.008 80);
--accent-foreground: oklch(0.15 0.012 75);
--destructive: oklch(0.52 0.22 25);
--border: oklch(0.84 0.007 78);
--input: oklch(0.87 0.008 80);
--ring: oklch(0.50 0.14 65);
}
/* ============================================================
LIGHT MODE UTILITY OVERRIDES
============================================================ */
html.light {
& .text-white,
& .text-white\/90,
& .text-white\/80,
& .text-white\/70 {
color: var(--foreground) !important;
}
& .text-white\/60,
& .text-white\/50 {
color: color-mix(in oklch, var(--foreground) 60%, transparent) !important;
}
& .text-white\/40,
& .text-white\/30 {
color: color-mix(in oklch, var(--foreground) 38%, transparent) !important;
}
& .bg-black\/80,
& .bg-black\/60,
& .bg-black\/50,
& .bg-black\/40 {
background-color: oklch(0.90 0.010 80 / 0.7) !important;
}
& [class*="bg-exo-black/"] {
background-color: oklch(0.90 0.010 80 / 0.6) !important;
}
& [class*="shadow-black"] {
--tw-shadow-color: oklch(0.30 0.010 75 / 0.10) !important;
}
& ::-webkit-scrollbar-track {
background: oklch(0.93 0.010 80) !important;
}
& ::-webkit-scrollbar-thumb {
background: oklch(0.76 0.010 78) !important;
}
& ::-webkit-scrollbar-thumb:hover {
background: oklch(0.50 0.14 65 / 0.6) !important;
}
& .command-panel {
background: linear-gradient(
180deg,
oklch(0.94 0.012 80 / 0.96) 0%,
oklch(0.91 0.010 80 / 0.98) 100%
) !important;
border-color: oklch(0.82 0.008 78) !important;
box-shadow:
inset 0 1px 0 oklch(1 0 0 / 0.6),
0 4px 20px oklch(0.30 0.010 75 / 0.08) !important;
}
& .glow-text {
text-shadow:
0 0 12px oklch(0.50 0.14 65 / 0.20),
0 1px 3px oklch(0.30 0.010 75 / 0.12) !important;
}
& .grid-bg {
background-image:
linear-gradient(oklch(0.75 0.008 78 / 0.25) 1px, transparent 1px),
linear-gradient(90deg, oklch(0.75 0.008 78 / 0.25) 1px, transparent 1px) !important;
}
& .scanlines::before {
background: repeating-linear-gradient(
0deg,
transparent,
transparent 2px,
oklch(0.50 0.010 78 / 0.018) 2px,
oklch(0.50 0.010 78 / 0.018) 4px
) !important;
}
& .crt-screen {
background: radial-gradient(
ellipse at center,
oklch(0.95 0.012 80) 0%,
oklch(0.92 0.010 80) 50%,
oklch(0.89 0.009 80) 100%
) !important;
box-shadow:
inset 0 0 60px oklch(0.30 0.010 75 / 0.04),
0 0 30px oklch(0.50 0.14 65 / 0.04) !important;
}
& .graph-link {
stroke: oklch(0.50 0.018 75 / 0.45) !important;
filter: none !important;
}
& .graph-link-active {
stroke: oklch(0.50 0.14 65 / 0.75) !important;
filter: none !important;
}
& .shooting-stars {
display: none !important;
}
& img[alt="EXO"] {
filter: brightness(0) drop-shadow(0 0 6px oklch(0.30 0.010 75 / 0.10)) !important;
}
& .text-red-400 { color: oklch(0.52 0.22 25) !important; }
& .text-green-400 { color: oklch(0.48 0.17 155) !important; }
& .text-blue-200,
& .text-blue-300,
& .text-blue-400 { color: oklch(0.48 0.17 250) !important; }
& .bg-red-500\/10 { background-color: oklch(0.52 0.22 25 / 0.07) !important; }
& .bg-red-500\/20 { background-color: oklch(0.52 0.22 25 / 0.11) !important; }
& .bg-red-500\/30 { background-color: oklch(0.52 0.22 25 / 0.14) !important; }
& textarea,
& input[type="text"] { color: var(--foreground) !important; }
& textarea::placeholder,
& input::placeholder { color: oklch(0.50 0.012 78 / 0.55) !important; }
& .code-block-wrapper,
& .math-display-wrapper {
background: oklch(0.95 0.010 80) !important;
border-color: oklch(0.83 0.007 78) !important;
}
& .code-block-header,
& .math-display-header {
background: oklch(0.91 0.009 80) !important;
border-color: oklch(0.85 0.007 78) !important;
}
& .inline-code {
background: oklch(0.89 0.009 80) !important;
color: oklch(0.20 0.012 75) !important;
}
& blockquote { background: oklch(0.93 0.010 80) !important; }
& th {
background: oklch(0.90 0.009 80) !important;
border-color: oklch(0.80 0.007 78) !important;
}
& td { border-color: oklch(0.84 0.007 78) !important; }
& hr { border-color: oklch(0.84 0.007 78) !important; }
& .hljs { color: oklch(0.22 0.012 75) !important; }
& .hljs-keyword, & .hljs-selector-tag, & .hljs-literal, & .hljs-section, & .hljs-link {
color: oklch(0.45 0.18 300) !important;
}
& .hljs-string, & .hljs-title, & .hljs-name, & .hljs-type,
& .hljs-attribute, & .hljs-symbol, & .hljs-bullet, & .hljs-addition,
& .hljs-variable, & .hljs-template-tag, & .hljs-template-variable {
color: oklch(0.45 0.14 65) !important;
}
& .hljs-comment, & .hljs-quote, & .hljs-deletion, & .hljs-meta {
color: oklch(0.55 0.010 78) !important;
}
& .hljs-number, & .hljs-regexp, & .hljs-built_in {
color: oklch(0.45 0.15 160) !important;
}
& .hljs-function, & .hljs-class .hljs-title {
color: oklch(0.42 0.17 240) !important;
}
& .katex, & .katex .mord, & .katex .minner, & .katex .mop,
& .katex .mbin, & .katex .mrel, & .katex .mpunct {
color: oklch(0.15 0.012 75) !important;
}
& .katex .frac-line, & .katex .overline-line, & .katex .underline-line,
& .katex .hline, & .katex .rule {
border-color: oklch(0.25 0.012 75) !important;
background: oklch(0.25 0.012 75) !important;
}
& .katex svg { fill: oklch(0.25 0.012 75) !important; stroke: oklch(0.25 0.012 75) !important; }
& .katex svg path { stroke: oklch(0.25 0.012 75) !important; }
& .katex .mopen, & .katex .mclose,
& .katex .delimsizing, & [class^="katex .delim-size"] {
color: oklch(0.35 0.012 75) !important;
}
& .latex-proof { background: oklch(0.96 0.010 80) !important; border-left-color: oklch(0.72 0.010 78) !important; }
& .latex-proof-header { color: oklch(0.22 0.012 75) !important; }
& .latex-proof-content { color: oklch(0.15 0.012 75) !important; }
& .latex-proof-content::after { color: oklch(0.48 0.012 75) !important; }
& .latex-theorem { background: oklch(0.94 0.010 80) !important; border-color: oklch(0.80 0.008 78) !important; }
& .latex-diagram-placeholder {
background: oklch(0.96 0.010 80) !important;
border-color: oklch(0.80 0.008 78) !important;
color: oklch(0.38 0.012 75) !important;
}
}
@theme inline {
--radius-sm: calc(var(--radius) - 2px);
--radius-md: var(--radius);

View File

@@ -1,7 +1,15 @@
<!doctype html>
<html lang="en">
<html lang="en" class="dark">
<head>
<meta charset="utf-8" />
<script>
try {
if (localStorage.getItem('exo-theme') === 'light') {
document.documentElement.classList.remove('dark');
document.documentElement.classList.add('light');
}
} catch (_) {}
</script>
<link rel="icon" href="%sveltekit.assets%/favicon.ico" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<title>EXO</title>

View File

@@ -1,5 +1,6 @@
<script lang="ts">
import { browser } from "$app/environment";
import { theme } from "$lib/stores/theme.svelte";
export let showHome = true;
export let onHome: (() => void) | null = null;
@@ -79,10 +80,48 @@
/>
</button>
<!-- Right: Home + Downloads -->
<!-- Right: Theme toggle + Home + Downloads -->
<div
class="absolute right-6 top-1/2 -translate-y-1/2 flex items-center gap-4"
>
<button
onclick={() => theme.toggle()}
class="p-2 rounded border border-exo-medium-gray/40 hover:border-exo-yellow/50 transition-colors cursor-pointer"
title={theme.isLight ? "Switch to dark mode" : "Switch to light mode"}
aria-label={theme.isLight
? "Switch to dark mode"
: "Switch to light mode"}
>
{#if theme.isLight}
<svg
class="w-4 h-4 text-exo-light-gray"
fill="none"
viewBox="0 0 24 24"
stroke="currentColor"
stroke-width="2"
>
<path
stroke-linecap="round"
stroke-linejoin="round"
d="M21 12.79A9 9 0 1111.21 3a7 7 0 009.79 9.79z"
/>
</svg>
{:else}
<svg
class="w-4 h-4 text-exo-light-gray"
fill="none"
viewBox="0 0 24 24"
stroke="currentColor"
stroke-width="2"
>
<circle cx="12" cy="12" r="5" />
<path
stroke-linecap="round"
d="M12 1v2m0 18v2M4.22 4.22l1.42 1.42m12.72 12.72l1.42 1.42M1 12h2m18 0h2M4.22 19.78l1.42-1.42M18.36 5.64l1.42-1.42"
/>
</svg>
{/if}
</button>
{#if showHome}
<button
onclick={handleHome}

View File

@@ -0,0 +1,28 @@
import { browser } from "$app/environment";
let _isLight = $state(false);
export const theme = {
get isLight() {
return _isLight;
},
init() {
if (!browser) return;
_isLight = document.documentElement.classList.contains("light");
},
toggle() {
if (!browser) return;
_isLight = !_isLight;
if (_isLight) {
document.documentElement.classList.remove("dark");
document.documentElement.classList.add("light");
localStorage.setItem("exo-theme", "light");
} else {
document.documentElement.classList.remove("light");
document.documentElement.classList.add("dark");
localStorage.setItem("exo-theme", "dark");
}
},
};

View File

@@ -1,7 +1,13 @@
<script lang="ts">
import "../app.css";
import { onMount } from "svelte";
import { theme } from "$lib/stores/theme.svelte";
let { children } = $props();
onMount(() => {
theme.init();
});
</script>
<svelte:head>