Open WebUI chat theme: house palette via native custom.css hook + Figtree fonts (v2 contrast fixes)
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# Open WebUI chat theme
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The member chat (chat.inference.coop) is styled to the co-op's house palette
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using Open WebUI's **native** `/static/custom.css` hook — no image patching, no
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license issues (the branding surface is untouched; we only load styles).
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## Files
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- `openwebui-custom.css` — the theme (copied to the chat app as `/app/data/coop-theme.css`, served as `/static/custom.css`)
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- `figtree-*.woff2` — the four Figtree weights (OFL), copied into the chat app's static dir and served same-origin from `/static/fonts/` (avoids cross-origin font CORS problems)
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## How it's deployed
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State on the chat app (`50ae6c97-…` on Cloudron):
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1. **Persistent copies** live in `/app/data/` (survives app updates):
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- `/app/data/coop-theme.css`
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- `/app/data/fonts/figtree-*.woff2`
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2. **Startup hook** in `/app/data/env.sh` (appended, labeled "Co-op theme"):
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```bash
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if [ -f /app/data/coop-theme.css ]; then
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cp /app/data/coop-theme.css /run/openwebui/static/custom.css 2>/dev/null || true
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mkdir -p /run/openwebui/static/fonts
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cp /app/data/fonts/*.woff2 /run/openwebui/static/fonts/ 2>/dev/null || true
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fi
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```
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This is needed because Open WebUI's start script recreates
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`/run/openwebui/static/` from pristine image files on every boot.
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3. **Live serving** — Open WebUI's built `index.html` already contains
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`<link rel="stylesheet" href="/static/custom.css">`, so no HTML changes.
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## To update the theme
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```bash
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# 1. Push the new CSS to the app's persistent storage
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cloudron push --app 50ae6c97-e851-4d17-b013-51ca7a4e5be0 \
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openwebui-custom.css /app/data/coop-theme.css
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# 2. Apply immediately (no restart needed)
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cloudron exec --app 50ae6c97-e851-4d17-b013-51ca7a4e5be0 -- \
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cp /app/data/coop-theme.css /run/openwebui/static/custom.css
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```
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Verify at `https://chat.inference.coop/static/custom.css`.
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## Contrast notes (v2, 2026-09-29)
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v1 remapped the full Tailwind gray scale, which drifted body text and
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placeholders toward olive and hurt readability. v2 rules:
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- **Tint surfaces, not text.** Backgrounds/borders (gray-50..300) get the
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cream/olive treatment; text-side tokens (gray-600+) stay near Tailwind
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defaults in light mode.
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- **Explicit text contrast fixes** for message bodies (`.markdown-prose`),
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placeholders, and secondary text, both modes.
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- Links darkened to `#3f6e3e` on cream (AA); lightened in dark mode.
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/* Inference Cooperative theme for Open WebUI
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House style: cream #faf8f5, ink #2d3327, greens #5b8c5a/#6ba86b/#7ab87a,
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bronze #a97a4a, earthy red #b3543a. Figtree via co-op-hosted fonts.
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Loaded via /static/custom.css (native Open WebUI hook). */
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/* ---------- Font (served same-origin from the chat app, no CORS needed) ---------- */
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@font-face {
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font-family: 'Figtree';
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font-style: normal;
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font-weight: 400;
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font-display: swap;
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src: url('/static/fonts/figtree-400.woff2') format('woff2');
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}
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@font-face {
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font-family: 'Figtree';
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font-style: normal;
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font-weight: 500;
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font-display: swap;
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src: url('/static/fonts/figtree-500.woff2') format('woff2');
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}
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@font-face {
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font-family: 'Figtree';
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font-style: normal;
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font-weight: 600;
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font-display: swap;
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src: url('/static/fonts/figtree-600.woff2') format('woff2');
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}
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@font-face {
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font-family: 'Figtree';
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font-style: normal;
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font-weight: 700;
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font-display: swap;
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src: url('/static/fonts/figtree-700.woff2') format('woff2');
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}
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:root {
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--coop-cream: #faf8f5;
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--coop-cream-2: #f1ede5;
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--coop-ink: #2d3327;
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--coop-muted: #6b7a62;
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--coop-green-deep: #5b8c5a;
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--coop-green-mid: #6ba86b;
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--coop-green-soft: #7ab87a;
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--coop-bronze: #a97a4a;
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--coop-earth: #b3543a;
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--coop-border: #e4e0d8;
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}
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/* Light mode base.
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NOTE: base text colors stay near-Tailwind defaults for contrast; we tint
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surfaces (backgrounds, borders) rather than pushing text colors around,
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because remapping the whole gray scale made body text and placeholders
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hard to read (gray-400/500 shifted too far toward olive). */
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html, body {
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font-family: 'Figtree', -apple-system, 'Segoe UI', system-ui, sans-serif !important;
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}
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/* ---------- Light theme: warm surfaces, readable text ---------- */
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@media (prefers-color-scheme: light), (prefers-color-scheme: no-preference) {
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html:not(.dark) {
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/* App background: cream. Text: unchanged (dark slate) for max contrast. */
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--color-gray-50: #faf8f5;
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--color-gray-75: #f6f3ee;
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--color-gray-100: #f1ede5;
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--color-gray-200: #e4e0d8;
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--color-gray-300: #d4cfc3;
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--color-gray-400: #9c978b; /* placeholders — darker than before, still muted */
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--color-gray-500: #75705f;
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/* gray-600 through 950 UNTOUCHED: body text keeps Tailwind's near-black
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contrast instead of olive drift */
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}
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}
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/* Dark mode: warm-tinted greens instead of pure gray.
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Keep text-side tokens (600+) bright enough for contrast. */
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html.dark {
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--color-gray-50: #262b21;
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--color-gray-75: #2d3327;
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--color-gray-100: #333a2d;
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--color-gray-200: #3e4636;
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--color-gray-300: #545e4a;
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--color-gray-400: #7d8875;
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--color-gray-500: #97a28e;
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--color-gray-600: #b2bca9;
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--color-gray-700: #ccd3c3;
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--color-gray-800: #e3e7db;
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--color-gray-850: #eef1e7;
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--color-gray-900: #f5f7ef;
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--color-gray-950: #faf8f5;
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}
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/* ---------- Accent color: co-op green ---------- */
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:root, html.dark {
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--color-green-300: #7ab87a;
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--color-green-400: #6ba86b;
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--color-green-500: #5b8c5a;
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--color-green-600: #4e7a4d;
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}
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/* Primary buttons */
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.btn-primary, button.bg-black, button.bg-emerald-600, .bg-emerald-600 {
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background-color: #5b8c5a !important;
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}
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.btn-primary:hover, button.bg-emerald-600:hover {
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background-color: #4e7a4d !important;
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}
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/* Selected states, toggles, focus rings */
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.bg-emerald-500, .peer:checked ~ .bg-emerald-500 {
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background-color: #6ba86b !important;
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}
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.ring-emerald-500, .focus\:ring-emerald-500:focus, .border-emerald-500 {
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--tw-ring-color: #6ba86b;
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border-color: #6ba86b;
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}
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.text-emerald-500, .text-emerald-400, .text-emerald-300 {
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color: #5b8c5a !important;
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}
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html.dark .text-emerald-500, html.dark .text-emerald-400, html.dark .text-emerald-300 {
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color: #7ab87a !important;
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}
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/* ---------- Sidebar ---------- */
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#sidebar {
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background: linear-gradient(180deg, #f6f3ee 0%, #f1ede5 100%) !important;
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border-right: 1px solid #e4e0d8;
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}
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html.dark #sidebar {
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background: linear-gradient(180deg, #262b21 0%, #1f241b 100%) !important;
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border-right: 1px solid #3e4636;
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}
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/* Sidebar: active conversation */
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#sidebar a[id^="chat-item"].active {
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background-color: #eaf3ea !important;
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border-left: 3px solid #5b8c5a;
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}
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html.dark #sidebar a[id^="chat-item"].active {
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background-color: #333a2d !important;
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}
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/* ---------- Chat area ---------- */
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/* User message bubble: soft green tint */
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.user-message .message, .chat-user .message, div[class*="user-message"] {
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background-color: #eaf3ea !important;
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border-radius: 14px;
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}
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html.dark .user-message .message, html.dark div[class*="user-message"] {
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background-color: #333a2d !important;
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}
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/* Assistant message: cream card */
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.assistant-message .message, div[class*="assistant-message"] {
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border-radius: 14px;
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}
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/* ---------- Composer ---------- */
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#chat-input, textarea[name="prompt"], .scrollbar-hidden.relative {
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border-radius: 14px !important;
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}
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button[type="submit"].bg-black {
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background-color: #5b8c5a !important;
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}
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/* ---------- Model selector chip ---------- */
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button[aria-label="Select a model"], #model-selector {
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border-color: #d4cfc3;
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}
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html.dark button[aria-label="Select a model"], html.dark #model-selector {
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border-color: #545e4a;
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}
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/* ---------- Code blocks ---------- */
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pre, code, .language-python, .hljs {
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font-family: ui-monospace, 'SF Mono', 'Cascadia Code', Menlo, monospace;
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}
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.codeblock {
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border-radius: 12px !important;
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border: 1px solid #e4e0d8;
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}
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html.dark .codeblock {
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border-color: #3e4636;
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}
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/* ---------- Scrollbars: thin, green ---------- */
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::-webkit-scrollbar { width: 8px; height: 8px; }
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::-webkit-scrollbar-thumb { background: #c9d3c5; border-radius: 8px; }
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::-webkit-scrollbar-thumb:hover { background: #6ba86b; }
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html.dark ::-webkit-scrollbar-thumb { background: #3e4636; }
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html.dark ::-webkit-scrollbar-thumb:hover { background: #6ba86b; }
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::-webkit-scrollbar-track { background: transparent; }
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/* ---------- Selection ---------- */
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::selection { background: #cfe4cf; }
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html.dark ::selection { background: #3e5a3d; }
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/* ---------- Links ---------- */
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a:not(.no-underline):not([class*="btn"]) {
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color: #3f6e3e; /* darkened for AA contrast on cream */
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}
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html.dark a:not(.no-underline):not([class*="btn"]) {
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color: #8fc98f;
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}
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/* ---------- Text contrast fixes ---------- */
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/* Assistant reply text: near-black in light mode regardless of remapped tokens */
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.text-gray-800, .text-gray-900, div[id^="message-"] .markdown-prose {
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color: #262b21;
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}
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html.dark .text-gray-800, html.dark .text-gray-900, html.dark div[id^="message-"] .markdown-prose {
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color: #eef1e7;
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}
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/* Placeholder + secondary text: readable, not ghostly */
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::placeholder, .placeholder\:text-gray-400::placeholder {
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color: #8a8578 !important;
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opacity: 1 !important;
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}
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html.dark ::placeholder {
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color: #7d8875 !important;
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}
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.text-gray-400 { color: #75705f !important; }
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html.dark .text-gray-400 { color: #97a28e !important; }
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.text-gray-500 { color: #66604f !important; }
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html.dark .text-gray-500 { color: #a5b09a !important; }
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/* Input borders slightly stronger so fields are visible on cream */
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input, textarea, select {
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border-color: #d4cfc3 !important;
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}
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html.dark input, html.dark textarea, html.dark select {
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border-color: #545e4a !important;
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}
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/* ---------- Modal / dropdown polish ---------- */
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.modal, .dropdown-menu, [role="menu"] {
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border-radius: 14px !important;
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border: 1px solid #e4e0d8 !important;
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}
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html.dark .modal, html.dark .dropdown-menu, html.dark [role="menu"] {
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border-color: #3e4636 !important;
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}
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/* ---------- Small serif-free caps for section labels (subtle) ---------- */
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.settings-tab, [data-sidebar-label] {
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letter-spacing: 0.02em;
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}
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