Extend the theme editor: typography, button/link colours, custom CSS, more presets

Grew /admin/theme from colours-only to a full theme editor, all applied
live via website_settings + ThemeVars:
- Typography: body font (10 web-safe + Google options; Google fonts load
  via an injected <link>) and H1/H2/H3 sizes (globals.css now reads
  --size-heading-* vars).
- Buttons & links: secondary/danger button colours + link/link-hover.
- Custom CSS: a raw textarea injected after the theme variables (staff-
  trusted), for anything the controls don't cover.
- Presets: 6 → 13 (added Galaxy, Royal, Cyberpunk, Neon, Coffee, Arctic,
  Christmas). ThemeVars now injects all the new vars + the font link.

Verified live (prod, amx_test): saved font=mono / H1=44px / custom CSS →
the public home reflected --font-family "Courier New", --size-heading-h1
44px and the injected rule; reverted the test settings. tsc 0,
vitest 49/49, next build 0.

src/actions/admin-theme.ts

@@ -6,10 +6,19 @@ import { requireStaff } from "@/lib/admin/guard";
 import { prisma } from "@/lib/prisma";
 import { siteSettings } from "@/lib/services/site-settings";
 import { logStaffActivity } from "@/lib/services/staff-activity";
-import { PRESETS, THEME_COLOR_KEYS } from "@/lib/theme-presets";
+import { FONTS, PRESETS, THEME_COLOR_KEYS } from "@/lib/theme-presets";
 
 // Only hex/keyword colour values are accepted (matches ThemeVars' sanitiser).
 const COLOR_RE = /^[#a-zA-Z0-9(),.\s%-]+$/;
+// Extra colour settings beyond the preset palette (buttons + links).
+const EXTRA_COLOR_KEYS = [
+  "button_secondary_color",
+  "button_danger_color",
+  "link_color",
+  "link_hover_color",
+];
+const HEADING_KEYS = ["size_heading_h1", "size_heading_h2", "size_heading_h3"];
+const CUSTOM_CSS_MAX = 20000;
 
 async function writeSetting(key: string, value: string): Promise<void> {
   await prisma.websiteSetting.upsert({
@@ -23,18 +32,32 @@ export async function saveTheme(formData: FormData): Promise<void> {
   const staff = await requireStaff();
 
   try {
-    for (const key of THEME_COLOR_KEYS) {
+    for (const key of [...THEME_COLOR_KEYS, ...EXTRA_COLOR_KEYS]) {
       const raw = String(formData.get(key) ?? "").trim();
       if (raw && COLOR_RE.test(raw)) await writeSetting(key, raw);
     }
     const radius = String(formData.get("border_radius") ?? "").trim();
     if (/^\d{1,3}$/.test(radius)) await writeSetting("border_radius", radius);
 
+    // Typography
+    const font = String(formData.get("font_family") ?? "").trim();
+    if (font in FONTS) await writeSetting("font_family", font);
+    for (const key of HEADING_KEYS) {
+      const v = String(formData.get(key) ?? "").trim();
+      if (/^\d{1,3}$/.test(v)) await writeSetting(key, v);
+    }
+
+    // Raw custom CSS (staff-trusted; length-capped, ThemeVars injects it as-is).
+    if (formData.has("custom_css")) {
+      const cssRaw = String(formData.get("custom_css") ?? "").slice(0, CUSTOM_CSS_MAX);
+      await writeSetting("custom_css", cssRaw);
+    }
+
     siteSettings.reload();
     await logStaffActivity({
       staffId: staff.id,
       action: "theme_update",
-      description: "Updated theme colours",
+      description: "Updated theme settings",
     });
     revalidatePath("/", "layout");
   } catch {

src/app/admin/theme/page.tsx

@@ -1,11 +1,11 @@
 import { applyPreset, saveTheme } from "@/actions/admin-theme";
 import { siteSettings } from "@/lib/services/site-settings";
-import { PRESETS } from "@/lib/theme-presets";
+import { FONTS, PRESETS } from "@/lib/theme-presets";
 
 export const dynamic = "force-dynamic";
 export const metadata = { title: "Theme" };
 
-const FIELDS: { key: string; label: string; def: string }[] = [
+const COLOR_FIELDS: { key: string; label: string; def: string }[] = [
   { key: "color_primary", label: "Primary", def: "#f59e0b" },
   { key: "color_accent", label: "Accent", def: "#10b981" },
   { key: "border_color", label: "Border (golden)", def: "#eeb425" },
@@ -16,15 +16,57 @@ const FIELDS: { key: string; label: string; def: string }[] = [
   { key: "color_navbar_text", label: "Navbar text", def: "#1e293b" },
   { key: "color_text", label: "Text", def: "#0f172a" },
   { key: "color_text_muted", label: "Muted text", def: "#64748b" },
+];
+
+const BUTTON_FIELDS: { key: string; label: string; def: string }[] = [
   { key: "button_primary_color", label: "Button", def: "#f59e0b" },
   { key: "button_text_color", label: "Button text", def: "#1e293b" },
+  { key: "button_secondary_color", label: "Secondary", def: "#22c55e" },
+  { key: "button_danger_color", label: "Danger", def: "#ef4444" },
+  { key: "link_color", label: "Link", def: "#eeb425" },
+  { key: "link_hover_color", label: "Link hover", def: "#cf9d15" },
 ];
 
+const HEADINGS: { key: string; label: string; def: string }[] = [
+  { key: "size_heading_h1", label: "H1", def: "30" },
+  { key: "size_heading_h2", label: "H2", def: "22" },
+  { key: "size_heading_h3", label: "H3", def: "18" },
+];
+
+const ALL_COLORS = [...COLOR_FIELDS, ...BUTTON_FIELDS];
+
 /** A <input type=color> needs #rrggbb — fall back to the default otherwise. */
 function toHex(value: string | null, def: string): string {
   return value && /^#[0-9a-fA-F]{6}$/.test(value) ? value : def;
 }
 
+function colorGrid(
+  fields: { key: string; label: string; def: string }[],
+  current: Record<string, string>,
+) {
+  return (
+    <div
+      style={{
+        display: "grid",
+        gridTemplateColumns: "repeat(auto-fit, minmax(180px, 1fr))",
+        gap: "0.75rem 1.25rem",
+      }}
+    >
+      {fields.map((f) => (
+        <label key={f.key} style={{ display: "flex", alignItems: "center", gap: "0.6rem" }}>
+          <input
+            type="color"
+            name={f.key}
+            defaultValue={toHex(current[f.key], f.def)}
+            style={{ width: 40, height: 30, padding: 0, border: "none", background: "none" }}
+          />
+          <span style={{ fontSize: "0.88rem" }}>{f.label}</span>
+        </label>
+      ))}
+    </div>
+  );
+}
+
 export default async function AdminTheme({
   searchParams,
 }: {
@@ -34,16 +76,23 @@ export default async function AdminTheme({
 
   const current = Object.fromEntries(
     await Promise.all(
-      FIELDS.map(async (f) => [f.key, (await siteSettings.get(f.key, f.def)) ?? f.def] as const),
+      ALL_COLORS.map(async (f) => [f.key, (await siteSettings.get(f.key, f.def)) ?? f.def] as const),
     ),
   ) as Record<string, string>;
   const radius = (await siteSettings.get("border_radius", "12")) ?? "12";
+  const fontKey = (await siteSettings.get("font_family", "nunito")) ?? "nunito";
+  const headings = Object.fromEntries(
+    await Promise.all(
+      HEADINGS.map(async (h) => [h.key, (await siteSettings.get(h.key, h.def)) ?? h.def] as const),
+    ),
+  ) as Record<string, string>;
+  const customCss = (await siteSettings.get("custom_css", "")) ?? "";
 
   return (
     <main>
       <h1>Theme</h1>
       <p className="muted" style={{ marginTop: "-0.4rem" }}>
-        Recolour the whole site. Values are written to <code>website_settings</code> and applied
+        Restyle the whole site. Values are written to <code>website_settings</code> and applied
         live (no rebuild).
       </p>
 
@@ -91,48 +140,80 @@ export default async function AdminTheme({
         </div>
       </section>
 
-      <section className="admin-section">
-        <h2>Custom colours</h2>
-        <form action={saveTheme} className="card">
-          <div
-            style={{
-              display: "grid",
-              gridTemplateColumns: "repeat(auto-fit, minmax(190px, 1fr))",
-              gap: "0.75rem 1.25rem",
-            }}
-          >
-            {FIELDS.map((f) => (
-              <label
-                key={f.key}
-                style={{ display: "flex", alignItems: "center", gap: "0.6rem" }}
-              >
-                <input
-                  type="color"
-                  name={f.key}
-                  defaultValue={toHex(current[f.key], f.def)}
-                  style={{ width: 40, height: 30, padding: 0, border: "none", background: "none" }}
-                />
-                <span style={{ fontSize: "0.88rem" }}>{f.label}</span>
-              </label>
-            ))}
-          </div>
+      <form action={saveTheme}>
+        <section className="admin-section">
+          <h2>Colours</h2>
+          <div className="card">{colorGrid(COLOR_FIELDS, current)}</div>
+        </section>
 
-          <div style={{ marginTop: "1rem", display: "flex", alignItems: "center", gap: "0.6rem" }}>
-            <label style={{ fontSize: "0.88rem" }}>Border radius (px)</label>
-            <input
-              name="border_radius"
-              type="number"
-              min={0}
-              max={40}
-              defaultValue={/^\d{1,3}$/.test(radius) ? radius : "12"}
-              style={{ width: 90 }}
-            />
-            <button type="submit" className="btn btn-primary" style={{ marginLeft: "auto" }}>
+        <section className="admin-section">
+          <h2>Buttons & links</h2>
+          <div className="card">{colorGrid(BUTTON_FIELDS, current)}</div>
+        </section>
+
+        <section className="admin-section">
+          <h2>Typography & layout</h2>
+          <div className="card">
+            <div style={{ display: "flex", flexWrap: "wrap", gap: "1.25rem", alignItems: "center" }}>
+              <label style={{ display: "flex", alignItems: "center", gap: "0.5rem" }}>
+                <span style={{ fontSize: "0.88rem" }}>Font</span>
+                <select name="font_family" defaultValue={fontKey}>
+                  {Object.entries(FONTS).map(([key, f]) => (
+                    <option key={key} value={key}>
+                      {f.label}
+                    </option>
+                  ))}
+                </select>
+              </label>
+              {HEADINGS.map((h) => (
+                <label key={h.key} style={{ display: "flex", alignItems: "center", gap: "0.4rem" }}>
+                  <span style={{ fontSize: "0.88rem" }}>{h.label} (px)</span>
+                  <input
+                    name={h.key}
+                    type="number"
+                    min={10}
+                    max={80}
+                    defaultValue={/^\d{1,3}$/.test(headings[h.key]) ? headings[h.key] : h.def}
+                    style={{ width: 80 }}
+                  />
+                </label>
+              ))}
+              <label style={{ display: "flex", alignItems: "center", gap: "0.4rem" }}>
+                <span style={{ fontSize: "0.88rem" }}>Border radius (px)</span>
+                <input
+                  name="border_radius"
+                  type="number"
+                  min={0}
+                  max={40}
+                  defaultValue={/^\d{1,3}$/.test(radius) ? radius : "12"}
+                  style={{ width: 80 }}
+                />
+              </label>
+            </div>
+          </div>
+        </section>
+
+        <section className="admin-section">
+          <h2>Custom CSS</h2>
+          <p className="muted" style={{ marginTop: "-0.4rem" }}>
+            Injected raw into every page (after the theme variables). Use it for tweaks the controls
+            above don’t cover.
+          </p>
+          <textarea
+            name="custom_css"
+            defaultValue={customCss}
+            rows={8}
+            spellCheck={false}
+            placeholder={"/* e.g. */\n.nav-item { letter-spacing: 0.5px; }"}
+            style={{ width: "100%", fontFamily: "monospace", fontSize: "0.85rem" }}
+          />
+          <div style={{ marginTop: "1rem", textAlign: "right" }}>
+            <button type="submit" className="btn btn-primary">
               Save theme
             </button>
           </div>
-        </form>
-      </section>
+        </section>
+      </form>
     </main>
   );
 }

src/app/globals.css

@@ -205,16 +205,16 @@ body {
 
 /* ── App component classes (used across the converted pages) ── */
 h1 {
-  font-size: 30px;
+  font-size: var(--size-heading-h1, 30px);
   font-weight: 800;
   margin: 0.2em 0 0.5em;
 }
 h2 {
-  font-size: 22px;
+  font-size: var(--size-heading-h2, 22px);
   font-weight: 700;
 }
 h3 {
-  font-size: 18px;
+  font-size: var(--size-heading-h3, 18px);
   font-weight: 700;
 }
 a {

src/components/theme-vars.tsx

@@ -1,7 +1,9 @@
 import { siteSettings } from "@/lib/services/site-settings";
+import { FONTS } from "@/lib/theme-presets";
 
 // Injects the DB-driven CSS custom properties into :root, exactly like
-// AtomCMS's app.blade.php. Falls back to the atom defaults when no DB.
+// AtomCMS's app.blade.php. Falls back to the atom defaults when no DB. Covers
+// colours, typography, buttons, links + an optional raw custom-CSS block.
 export async function ThemeVars() {
   const g = (k: string, d: string) => siteSettings.get(k, d);
   const [
@@ -16,8 +18,17 @@ export async function ThemeVars() {
     accent,
     buttonColor,
     buttonText,
+    buttonSecondary,
+    buttonDanger,
+    linkColor,
+    linkHover,
     borderColor,
     borderRadius,
+    fontKey,
+    h1,
+    h2,
+    h3,
+    customCss,
   ] = await Promise.all([
     g("color_primary", "#f59e0b"),
     g("color_background", "#f8fafc"),
@@ -30,12 +41,24 @@ export async function ThemeVars() {
     g("color_accent", "#10b981"),
     g("button_primary_color", "#f59e0b"),
     g("button_text_color", "#1e293b"),
+    g("button_secondary_color", "#22c55e"),
+    g("button_danger_color", "#ef4444"),
+    g("link_color", "#eeb425"),
+    g("link_hover_color", "#cf9d15"),
     g("border_color", "#eeb425"),
     g("border_radius", "12"),
+    g("font_family", "nunito"),
+    g("size_heading_h1", "30"),
+    g("size_heading_h2", "22"),
+    g("size_heading_h3", "18"),
+    g("custom_css", ""),
   ]);
 
   // Only hex/keyword color values are admin-controlled — sanitize defensively.
   const safe = (v: string | null, d: string) => (v && /^[#a-zA-Z0-9(),.\s%-]+$/.test(v) ? v : d);
+  const px = (v: string | null, d: string) => (/^\d{1,3}$/.test(v ?? "") ? (v as string) : d);
+
+  const font = FONTS[fontKey ?? "nunito"] ?? FONTS.nunito;
 
   const css = `:root{
 --color-primary:${safe(primary, "#f59e0b")};
@@ -49,10 +72,32 @@ export async function ThemeVars() {
 --color-accent:${safe(accent, "#10b981")};
 --button-color:${safe(buttonColor, "#f59e0b")};
 --button-text-color:${safe(buttonText, "#1e293b")};
+--button-secondary-color:${safe(buttonSecondary, "#22c55e")};
+--button-danger-color:${safe(buttonDanger, "#ef4444")};
+--link-color:${safe(linkColor, "#eeb425")};
+--link-hover-color:${safe(linkHover, "#cf9d15")};
 --border-color:${safe(borderColor, "#eeb425")};
---border-radius:${/^\d+$/.test(borderRadius ?? "") ? borderRadius : "12"}px;
+--border-radius:${px(borderRadius, "12")}px;
+--font-family:${font.stack};
+--size-heading-h1:${px(h1, "30")}px;
+--size-heading-h2:${px(h2, "22")}px;
+--size-heading-h3:${px(h3, "18")}px;
 }`;
 
-  // biome-ignore lint/security/noDangerouslySetInnerHtml: server-built CSS from sanitized admin settings
-  return <style dangerouslySetInnerHTML={{ __html: css }} />;
+  const googleHref = font.google
+    ? `https://fonts.googleapis.com/css2?family=${font.google}&display=swap`
+    : null;
+
+  return (
+    <>
+      {googleHref ? <link rel="stylesheet" href={googleHref} /> : null}
+      {/* biome-ignore lint/security/noDangerouslySetInnerHtml: server-built CSS from sanitized admin settings */}
+      <style dangerouslySetInnerHTML={{ __html: css }} />
+      {customCss && customCss.trim() ? (
+        // Staff-authored custom CSS (housekeeping → Theme). Trusted input.
+        // biome-ignore lint/security/noDangerouslySetInnerHtml: staff-authored theme CSS
+        <style dangerouslySetInnerHTML={{ __html: customCss }} />
+      ) : null}
+    </>
+  );
 }

src/lib/theme-presets.ts

@@ -1,6 +1,29 @@
 // Theme constants shared by the admin Theme page and its server action. Kept in
 // a plain module because a "use server" file may only export async functions.
 
+// Selectable body fonts. Web-safe stacks render with no extra request; the few
+// Google fonts load via a <link> ThemeVars injects when chosen.
+export const FONTS: Record<string, { label: string; stack: string; google?: string }> = {
+  nunito: { label: "Nunito (default)", stack: 'var(--font-nunito), "Nunito", sans-serif' },
+  system: { label: "System", stack: 'ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif' },
+  inter: {
+    label: "Inter",
+    stack: '"Inter", sans-serif',
+    google: "Inter:wght@400;600;700;800",
+  },
+  poppins: {
+    label: "Poppins",
+    stack: '"Poppins", sans-serif',
+    google: "Poppins:wght@400;600;700;800",
+  },
+  roboto: { label: "Roboto", stack: '"Roboto", sans-serif', google: "Roboto:wght@400;500;700" },
+  georgia: { label: "Georgia (serif)", stack: 'Georgia, "Times New Roman", serif' },
+  trebuchet: { label: "Trebuchet", stack: '"Trebuchet MS", Verdana, sans-serif' },
+  verdana: { label: "Verdana", stack: "Verdana, Geneva, sans-serif" },
+  comic: { label: "Comic (retro)", stack: '"Comic Sans MS", "Comic Sans", cursive' },
+  mono: { label: "Monospace", stack: '"Courier New", ui-monospace, monospace' },
+};
+
 // The colour settings ThemeVars injects into :root. Editing these recolours the
 // whole site live (ThemeVars reads them on every request).
 export const THEME_COLOR_KEYS = [
@@ -105,4 +128,102 @@ export const PRESETS: Record<string, Record<string, string>> = {
     button_text_color: "#ffffff",
     border_color: "#f472b6",
   },
+  Galaxy: {
+    color_primary: "#a855f7",
+    color_background: "#0b0a1f",
+    color_surface: "#171430",
+    color_dropdown: "#211d44",
+    color_navbar: "#171430",
+    color_navbar_text: "#e9e5ff",
+    color_text: "#e9e5ff",
+    color_text_muted: "#a39dcf",
+    color_accent: "#22d3ee",
+    button_primary_color: "#a855f7",
+    button_text_color: "#ffffff",
+    border_color: "#7c3aed",
+  },
+  Royal: {
+    color_primary: "#4f46e5",
+    color_background: "#f5f6ff",
+    color_surface: "#ffffff",
+    color_dropdown: "#ffffff",
+    color_navbar: "#ffffff",
+    color_navbar_text: "#1e1b4b",
+    color_text: "#1e1b4b",
+    color_text_muted: "#636681",
+    color_accent: "#d97706",
+    button_primary_color: "#4f46e5",
+    button_text_color: "#ffffff",
+    border_color: "#818cf8",
+  },
+  Cyberpunk: {
+    color_primary: "#f0db4f",
+    color_background: "#0d0221",
+    color_surface: "#190933",
+    color_dropdown: "#241046",
+    color_navbar: "#190933",
+    color_navbar_text: "#f0db4f",
+    color_text: "#f5e9ff",
+    color_text_muted: "#b08fd6",
+    color_accent: "#ff2a6d",
+    button_primary_color: "#ff2a6d",
+    button_text_color: "#ffffff",
+    border_color: "#05d9e8",
+  },
+  Neon: {
+    color_primary: "#39ff14",
+    color_background: "#0a0a0a",
+    color_surface: "#141414",
+    color_dropdown: "#1d1d1d",
+    color_navbar: "#141414",
+    color_navbar_text: "#39ff14",
+    color_text: "#e8ffe8",
+    color_text_muted: "#7fae7f",
+    color_accent: "#ff00ff",
+    button_primary_color: "#39ff14",
+    button_text_color: "#0a0a0a",
+    border_color: "#39ff14",
+  },
+  Coffee: {
+    color_primary: "#a16207",
+    color_background: "#f5efe6",
+    color_surface: "#fffaf2",
+    color_dropdown: "#fffaf2",
+    color_navbar: "#fffaf2",
+    color_navbar_text: "#3f2d1c",
+    color_text: "#3f2d1c",
+    color_text_muted: "#8a7560",
+    color_accent: "#15803d",
+    button_primary_color: "#a16207",
+    button_text_color: "#ffffff",
+    border_color: "#ca8a04",
+  },
+  Arctic: {
+    color_primary: "#0891b2",
+    color_background: "#eef6fb",
+    color_surface: "#ffffff",
+    color_dropdown: "#ffffff",
+    color_navbar: "#ffffff",
+    color_navbar_text: "#0e3a4f",
+    color_text: "#0e3a4f",
+    color_text_muted: "#5b7585",
+    color_accent: "#6366f1",
+    button_primary_color: "#0891b2",
+    button_text_color: "#ffffff",
+    border_color: "#67e8f9",
+  },
+  Christmas: {
+    color_primary: "#dc2626",
+    color_background: "#f4faf4",
+    color_surface: "#ffffff",
+    color_dropdown: "#ffffff",
+    color_navbar: "#0f3d24",
+    color_navbar_text: "#ffffff",
+    color_text: "#14321f",
+    color_text_muted: "#5f7a68",
+    color_accent: "#15803d",
+    button_primary_color: "#dc2626",
+    button_text_color: "#ffffff",
+    border_color: "#16a34a",
+  },
 };