Add light/dark theme toggle with CSS variable system

- globals.css: surface colors flip via CSS custom properties (.dark class)
- Navbar: sun/moon toggle button, persists to localStorage, respects OS preference
- Footer: theme-aware logo (light logo for dark mode, dark logo for light mode)
- Layout: no-FOUC inline script applies theme before first paint
- Both DashCaddy wide logos (light+dark) swap based on theme
- Sami's personal samiahmed7777 logo in footer copyright is untouched

src/app/globals.css

@@ -1,5 +1,9 @@
 @import "tailwindcss";
 
+/* ── Theme system: light is default, .dark activates dark mode ── */
+/* Surface colors are remapped so bg-surface-950 = page background, */
+/* text-surface-50 = main text — in BOTH themes. The scale flips.   */
+
 @theme inline {
   --color-brand-50: #eef6ff;
   --color-brand-100: #d9eaff;
@@ -13,22 +17,55 @@
   --color-brand-900: #18378f;
   --color-brand-950: #142357;
 
-  --color-surface-50: #f8fafc;
+  /* Surface scale — mapped to semantic vars that flip with theme */
-  --color-surface-100: #f1f5f9;
+  --color-surface-50: var(--s-50);
-  --color-surface-200: #e2e8f0;
+  --color-surface-100: var(--s-100);
-  --color-surface-300: #cbd5e1;
+  --color-surface-200: var(--s-200);
-  --color-surface-400: #94a3b8;
+  --color-surface-300: var(--s-300);
-  --color-surface-500: #64748b;
+  --color-surface-400: var(--s-400);
-  --color-surface-600: #475569;
+  --color-surface-500: var(--s-500);
-  --color-surface-700: #334155;
+  --color-surface-600: var(--s-600);
-  --color-surface-800: #1e293b;
+  --color-surface-700: var(--s-700);
-  --color-surface-900: #0f172a;
+  --color-surface-800: var(--s-800);
-  --color-surface-950: #020617;
+  --color-surface-900: var(--s-900);
+  --color-surface-950: var(--s-950);
 
   --font-sans: "Inter", system-ui, -apple-system, sans-serif;
   --font-mono: "JetBrains Mono", "Fira Code", monospace;
 }
 
+/* ── Light theme (default) ── */
+:root {
+  --s-50: #020617;     /* main text — near black */
+  --s-100: #0f172a;    /* heading text */
+  --s-200: #1e293b;    /* strong text */
+  --s-300: #475569;    /* secondary text */
+  --s-400: #64748b;    /* muted text */
+  --s-500: #94a3b8;    /* very muted */
+  --s-600: #cbd5e1;    /* faint text */
+  --s-700: #e2e8f0;    /* borders */
+  --s-800: #f1f5f9;    /* card backgrounds */
+  --s-900: #f8fafc;    /* secondary page bg */
+  --s-950: #ffffff;    /* page background — white */
+  color-scheme: light;
+}
+
+/* ── Dark theme ── */
+.dark {
+  --s-50: #f8fafc;     /* main text — near white */
+  --s-100: #f1f5f9;    /* heading text */
+  --s-200: #e2e8f0;    /* strong text */
+  --s-300: #cbd5e1;    /* secondary text */
+  --s-400: #94a3b8;    /* muted text */
+  --s-500: #64748b;    /* very muted */
+  --s-600: #475569;    /* faint text */
+  --s-700: #334155;    /* borders */
+  --s-800: #1e293b;    /* card backgrounds */
+  --s-900: #0f172a;    /* secondary page bg */
+  --s-950: #020617;    /* page background — near black */
+  color-scheme: dark;
+}
+
 html {
   scroll-behavior: smooth;
   -webkit-font-smoothing: antialiased;
@@ -39,6 +76,7 @@ body {
   background-color: var(--color-surface-950);
   color: var(--color-surface-100);
   font-family: var(--font-sans);
+  transition: background-color 0.3s ease, color 0.3s ease;
 }
 
 ::selection {
@@ -54,9 +92,18 @@ body {
 }
 
 .glass-card {
-  background: rgba(30, 41, 59, 0.5);
+  background: var(--glass-bg);
   backdrop-filter: blur(16px);
-  border: 1px solid rgba(148, 163, 184, 0.1);
+  border: 1px solid var(--glass-border);
+}
+
+:root {
+  --glass-bg: rgba(241, 245, 249, 0.5);
+  --glass-border: rgba(0, 0, 0, 0.08);
+}
+.dark {
+  --glass-bg: rgba(30, 41, 59, 0.5);
+  --glass-border: rgba(148, 163, 184, 0.1);
 }
 
 .glow-border {
@@ -71,3 +118,18 @@ body {
     transparent
   );
 }
+
+/* Theme toggle button */
+.theme-toggle {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  width: 36px;
+  height: 36px;
+  border-radius: 8px;
+  transition: background-color 0.2s, color 0.2s;
+  cursor: pointer;
+}
+.theme-toggle:hover {
+  background-color: var(--color-surface-800);
+}

src/app/layout.tsx

@@ -4,7 +4,7 @@ import "./globals.css";
 export const metadata: Metadata = {
   title: "DashCaddy - Self-Hosting Made Beautiful",
   description:
-    "Deploy 50+ Docker apps with one click. Automatic SSL, DNS, and reverse proxy configuration. The all-in-one self-hosting dashboard.",
+    "Deploy 76+ Docker apps with one click. AI-powered self-hosting with automatic SSL, DNS, reverse proxy, security center, and fleet management.",
   keywords: [
     "self-hosting",
     "docker",
@@ -14,11 +14,12 @@ export const metadata: Metadata = {
     "ssl",
     "dns",
     "homelab",
+    "AI self-hosting",
   ],
   openGraph: {
     title: "DashCaddy - Self-Hosting Made Beautiful",
     description:
-      "Deploy 50+ Docker apps with one click. Automatic SSL, DNS, and reverse proxy configuration.",
+      "Deploy 76+ Docker apps with one click. AI-powered self-hosting with automatic SSL, DNS, and reverse proxy.",
     url: "https://dashcaddy.net",
     siteName: "DashCaddy",
     type: "website",
@@ -27,17 +28,32 @@ export const metadata: Metadata = {
     card: "summary_large_image",
     title: "DashCaddy - Self-Hosting Made Beautiful",
     description:
-      "Deploy 50+ Docker apps with one click. Automatic SSL, DNS, and reverse proxy.",
+      "Deploy 76+ Docker apps with one click. AI-powered self-hosting.",
   },
 };
 
+// Inline script to set theme class BEFORE first paint — prevents FOUC
+const themeScript = `
+(function() {
+  try {
+    var stored = localStorage.getItem('theme');
+    var prefersDark = window.matchMedia('(prefers-color-scheme: dark)').matches;
+    var theme = stored || (prefersDark ? 'dark' : 'light');
+    if (theme === 'dark') document.documentElement.classList.add('dark');
+  } catch(e) {}
+})();
+`;
+
 export default function RootLayout({
   children,
 }: Readonly<{
   children: React.ReactNode;
 }>) {
   return (
-    <html lang="en" className="h-full antialiased">
+    <html lang="en" className="h-full antialiased" suppressHydrationWarning>
+      <head>
+        <script dangerouslySetInnerHTML={{ __html: themeScript }} />
+      </head>
       <body className="min-h-full flex flex-col bg-surface-950 text-surface-100" style={{ fontFamily: "'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif" }}>
         {children}
       </body>

src/components/Footer.tsx

@@ -1,8 +1,19 @@
+'use client';
+
 import Link from 'next/link';
 import Image from 'next/image';
+import { useState, useEffect } from 'react';
 
 export default function Footer() {
   const currentYear = new Date().getFullYear();
+  const [theme, setTheme] = useState<'light' | 'dark'>('dark');
+
+  useEffect(() => {
+    const stored = localStorage.getItem('theme') as 'light' | 'dark' | null;
+    const prefersDark = window.matchMedia('(prefers-color-scheme: dark)').matches;
+    setTheme(stored || (prefersDark ? 'dark' : 'light'));
+    document.documentElement.classList.toggle('dark', (stored || (prefersDark ? 'dark' : 'light')) === 'dark');
+  }, []);
 
   const footerSections = [
     {
@@ -52,7 +63,13 @@ export default function Footer() {
           {/* Brand Section */}
           <div>
             <Link href="/" className="flex items-center transition-opacity hover:opacity-80 mb-4">
-              <Image src="/images/brand-wide-light.png" alt="DashCaddy" width={160} height={53} className="h-9 w-auto" />
+              <Image
+                src={theme === 'dark' ? '/images/brand-wide-light.png' : '/images/brand-wide-dark.png'}
+                alt="DashCaddy"
+                width={160}
+                height={53}
+                className="h-9 w-auto"
+              />
             </Link>
             <p className="text-surface-400 text-sm leading-relaxed mb-4">
               Self-hosted Docker dashboard with automatic SSL, DNS, and reverse proxy. Making self-hosting beautiful and effortless.

src/components/Navbar.tsx

@@ -2,10 +2,27 @@
 
 import Link from 'next/link';
 import Image from 'next/image';
-import { useState } from 'react';
+import { useState, useEffect } from 'react';
 
 export default function Navbar() {
   const [isOpen, setIsOpen] = useState(false);
+  const [theme, setTheme] = useState<'light' | 'dark'>('dark');
+
+  // Initialize theme from localStorage or system preference
+  useEffect(() => {
+    const stored = localStorage.getItem('theme') as 'light' | 'dark' | null;
+    const prefersDark = window.matchMedia('(prefers-color-scheme: dark)').matches;
+    const initial = stored || (prefersDark ? 'dark' : 'light');
+    setTheme(initial);
+    document.documentElement.classList.toggle('dark', initial === 'dark');
+  }, []);
+
+  const toggleTheme = () => {
+    const next = theme === 'dark' ? 'light' : 'dark';
+    setTheme(next);
+    document.documentElement.classList.toggle('dark', next === 'dark');
+    localStorage.setItem('theme', next);
+  };
 
   const navLinks = [
     { href: '/features', label: 'Features' },
@@ -20,7 +37,14 @@ export default function Navbar() {
         <div className="flex h-16 items-center justify-between">
           {/* Logo */}
           <Link href="/" className="flex items-center transition-opacity hover:opacity-80">
-            <Image src="/images/brand-wide-light.png" alt="DashCaddy" width={180} height={60} className="h-10 w-auto" priority />
+            <Image
+              src={theme === 'dark' ? '/images/brand-wide-light.png' : '/images/brand-wide-dark.png'}
+              alt="DashCaddy"
+              width={180}
+              height={60}
+              className="h-10 w-auto"
+              priority
+            />
           </Link>
 
           {/* Desktop Navigation */}
@@ -34,22 +58,46 @@ export default function Navbar() {
                 {link.label}
               </Link>
             ))}
-          </div>
+            {/* Theme toggle */}
-
+            <button
-          {/* CTA Button (Desktop) */}
+              onClick={toggleTheme}
-          <div className="hidden md:block">
+              className="theme-toggle text-surface-300 hover:text-brand-400"
-            <Link
+              aria-label="Toggle theme"
-              href="/pricing"
-              className="inline-flex items-center gap-2 rounded-lg bg-brand-500 px-4 py-2 text-sm font-semibold text-white hover:bg-brand-600 transition-all duration-200 hover:shadow-lg hover:shadow-brand-500/30"
             >
-              Get Started
+              {theme === 'dark' ? (
-            </Link>
+                /* Sun icon */
+                <svg className="w-5 h-5" fill="none" viewBox="0 0 24 24" strokeWidth={1.5} stroke="currentColor">
+                  <path strokeLinecap="round" strokeLinejoin="round" d="M12 3v2.25m6.364.386l-1.591 1.591M21 12h-2.25m-.386 6.364l-1.591-1.591M12 18.75V21m-4.773-4.227l-1.591 1.591M5.25 12H3m4.227-4.773L5.636 5.636M15.75 12a3.75 3.75 0 11-7.5 0 3.75 3.75 0 017.5 0z" />
+                </svg>
+              ) : (
+                /* Moon icon */
+                <svg className="w-5 h-5" fill="none" viewBox="0 0 24 24" strokeWidth={1.5} stroke="currentColor">
+                  <path strokeLinecap="round" strokeLinejoin="round" d="M21.752 15.002A9.72 9.72 0 0118 15.75c-5.385 0-9.75-4.365-9.75-9.75 0-1.33.266-2.597.748-3.752A9.753 9.753 0 003 11.25C3 16.635 7.365 21 12.75 21a9.753 9.753 0 009.002-5.998z" />
+                </svg>
+              )}
+            </button>
           </div>
 
-          {/* Mobile Menu Button */}
+          {/* CTA + Mobile toggle */}
+          <div className="flex items-center gap-2 md:hidden">
+            <button
+              onClick={toggleTheme}
+              className="theme-toggle text-surface-300"
+              aria-label="Toggle theme"
+            >
+              {theme === 'dark' ? (
+                <svg className="w-5 h-5" fill="none" viewBox="0 0 24 24" strokeWidth={1.5} stroke="currentColor">
+                  <path strokeLinecap="round" strokeLinejoin="round" d="M12 3v2.25m6.364.386l-1.591 1.591M21 12h-2.25m-.386 6.364l-1.591-1.591M12 18.75V21m-4.773-4.227l-1.591 1.591M5.25 12H3m4.227-4.773L5.636 5.636M15.75 12a3.75 3.75 0 11-7.5 0 3.75 3.75 0 017.5 0z" />
+                </svg>
+              ) : (
+                <svg className="w-5 h-5" fill="none" viewBox="0 0 24 24" strokeWidth={1.5} stroke="currentColor">
+                  <path strokeLinecap="round" strokeLinejoin="round" d="M21.752 15.002A9.72 9.72 0 0118 15.75c-5.385 0-9.75-4.365-9.75-9.75 0-1.33.266-2.597.748-3.752A9.753 9.753 0 003 11.25C3 16.635 7.365 21 12.75 21a9.753 9.753 0 009.002-5.998z" />
+                </svg>
+              )}
+            </button>
             <button
               onClick={() => setIsOpen(!isOpen)}
-            className="md:hidden inline-flex items-center justify-center rounded-lg p-2 text-surface-400 hover:bg-surface-800 hover:text-surface-200 transition-colors"
+              className="inline-flex items-center justify-center rounded-lg p-2 text-surface-400 hover:bg-surface-800 hover:text-surface-200 transition-colors"
               aria-label="Toggle menu"
             >
               <svg
@@ -59,15 +107,22 @@ export default function Navbar() {
                 strokeWidth={1.5}
                 stroke="currentColor"
               >
-              <path
+                <path strokeLinecap="round" strokeLinejoin="round" d="M3.75 6.75h16.5M3.75 12h16.5m-16.5 5.25h16.5" />
-                strokeLinecap="round"
-                strokeLinejoin="round"
-                d="M3.75 6.75h16.5M3.75 12h16.5m-16.5 5.25h16.5"
-              />
               </svg>
             </button>
           </div>
 
+          {/* Desktop CTA */}
+          <div className="hidden md:block">
+            <Link
+              href="/pricing"
+              className="inline-flex items-center gap-2 rounded-lg bg-brand-500 px-4 py-2 text-sm font-semibold text-white hover:bg-brand-600 transition-all duration-200 hover:shadow-lg hover:shadow-brand-500/30"
+            >
+              Get Started
+            </Link>
+          </div>
+        </div>
+
         {/* Mobile Navigation */}
         {isOpen && (
           <div className="border-t border-surface-700/50 bg-surface-900/50 backdrop-blur md:hidden">