diff --git a/apps/web/app/(site)/blog/layout.tsx b/apps/web/app/(site)/blog/layout.tsx
new file mode 100644
index 0000000..1191fef
--- /dev/null
+++ b/apps/web/app/(site)/blog/layout.tsx
@@ -0,0 +1,9 @@
+import { LegacyLightSurface } from "@/src/components/LegacyLightSurface";
+
+export default function LegacyLayout({
+  children,
+}: {
+  children: React.ReactNode;
+}) {
+  return <LegacyLightSurface>{children}</LegacyLightSurface>;
+}
diff --git a/apps/web/app/(site)/book/page.tsx b/apps/web/app/(site)/book/page.tsx
new file mode 100644
index 0000000..de7fa0a
--- /dev/null
+++ b/apps/web/app/(site)/book/page.tsx
@@ -0,0 +1,18 @@
+import type { Metadata } from "next";
+import { Container } from "@/src/components/site/Container";
+import { SectionHeader } from "@/src/components/site/SectionHeader";
+
+export const metadata: Metadata = { title: "Book a call" };
+
+export default function Page() {
+  return (
+    <Container className="py-16 md:py-24">
+      <SectionHeader
+        as="h1"
+        kicker="/book"
+        title="Book a call"
+        lead="This page is coming soon."
+      />
+    </Container>
+  );
+}
diff --git a/apps/web/app/(site)/case-studies/layout.tsx b/apps/web/app/(site)/case-studies/layout.tsx
new file mode 100644
index 0000000..1191fef
--- /dev/null
+++ b/apps/web/app/(site)/case-studies/layout.tsx
@@ -0,0 +1,9 @@
+import { LegacyLightSurface } from "@/src/components/LegacyLightSurface";
+
+export default function LegacyLayout({
+  children,
+}: {
+  children: React.ReactNode;
+}) {
+  return <LegacyLightSurface>{children}</LegacyLightSurface>;
+}
diff --git a/apps/web/app/(site)/contact/layout.tsx b/apps/web/app/(site)/contact/layout.tsx
new file mode 100644
index 0000000..1191fef
--- /dev/null
+++ b/apps/web/app/(site)/contact/layout.tsx
@@ -0,0 +1,9 @@
+import { LegacyLightSurface } from "@/src/components/LegacyLightSurface";
+
+export default function LegacyLayout({
+  children,
+}: {
+  children: React.ReactNode;
+}) {
+  return <LegacyLightSurface>{children}</LegacyLightSurface>;
+}
diff --git a/apps/web/app/(site)/globals.css b/apps/web/app/(site)/globals.css
index 670000e..e1d1060 100644
--- a/apps/web/app/(site)/globals.css
+++ b/apps/web/app/(site)/globals.css
@@ -2,6 +2,40 @@
 @tailwind components;
 @tailwind utilities;
 
+/* Theme tokens. Dark is the site default; legacy pages (blog, legal, ...) opt into
+   the light variant by wrapping their content in `.theme-light` (LegacyLightSurface). */
+:root {
+  --color-bg: #0a0d12;
+  --color-surface: #0d1219;
+  --color-fg: #e6edf3;
+  --color-muted: #8b98a8;
+  --color-faint: #5b6879;
+  --color-border: #1f2630;
+  --color-border-strong: #2b3544;
+  --color-accent: #3fb98a;
+  --color-accent-hover: #55c99d;
+  --color-accent-fg: #0a0d12;
+  --color-code-bg: #0d1219;
+  --color-code-border: #1f2630;
+  --color-scrollbar-track: #0a0d12;
+  --color-scrollbar-thumb: #2b3544;
+}
+
+.theme-light {
+  --color-bg: #ffffff;
+  --color-surface: #f8fafc;
+  --color-fg: #0f172a;
+  --color-muted: #334155;
+  --color-faint: #64748b;
+  --color-border: #e2e8f0;
+  --color-border-strong: #cbd5e1;
+  --color-code-bg: #f8fafc;
+  --color-code-border: #f1f5f9;
+  background-color: var(--color-bg);
+  color: #1e293b;
+  font-family: var(--font-newsreader), Georgia, serif;
+}
+
 /* Base styles - Tailwind only */
 @layer base {
   html {
@@ -9,7 +43,7 @@
   }
 
   body {
-    @apply bg-white text-slate-800 font-serif antialiased selection:bg-slate-900 selection:text-white;
+    @apply bg-bg text-fg font-sans antialiased;
     line-height: 1.6;
   }
 
@@ -20,7 +54,7 @@
   h4,
   h5,
   h6 {
-    @apply font-sans font-bold text-slate-900 tracking-tighter;
+    @apply font-sans font-bold text-fg tracking-tighter;
   }
 
   h1 {
@@ -40,7 +74,7 @@
   }
 
   p {
-    @apply mb-6 text-base leading-relaxed text-slate-700;
+    @apply mb-6 text-base leading-relaxed text-muted;
   }
 
   .lead {
@@ -49,7 +83,7 @@
   }
 
   a {
-    @apply text-slate-900 hover:text-slate-700 transition-colors no-underline;
+    @apply text-fg hover:text-muted transition-colors no-underline;
   }
 
   ul,
@@ -62,22 +96,34 @@
   }
 
   code:not([class*="language-"]) {
-    @apply bg-slate-50 px-1.5 py-0.5 rounded-md font-mono text-[0.9em] text-slate-800 border border-slate-100;
+    @apply px-1.5 py-0.5 rounded-md font-mono text-[0.9em] text-fg border;
+    background-color: var(--color-code-bg);
+    border-color: var(--color-code-border);
   }
 
   blockquote {
-    @apply border-l-4 border-slate-900 pl-6 italic text-slate-700 my-8 text-lg md:text-2xl font-serif;
+    @apply border-l-4 border-fg pl-6 italic text-muted my-8 text-lg md:text-2xl font-serif;
   }
 
   /* Focus states */
-  a:focus,
-  button:focus,
   input:focus,
   textarea:focus {
     outline: none !important;
     box-shadow: none !important;
   }
 
+  /* Keep mouse focus quiet, but never hide the keyboard focus ring */
+  a:focus:not(:focus-visible),
+  button:focus:not(:focus-visible) {
+    outline: none;
+  }
+
+  a:focus-visible,
+  button:focus-visible {
+    outline: 2px solid var(--color-accent);
+    outline-offset: 2px;
+  }
+
   /* Interactive elements pointer */
   a,
   button,
@@ -328,11 +374,11 @@
 }
 
 ::-webkit-scrollbar-track {
-  background: #f1f5f9;
+  background: var(--color-scrollbar-track);
 }
 
 ::-webkit-scrollbar-thumb {
-  background: #cbd5e1;
+  background: var(--color-scrollbar-thumb);
   border-radius: 4px;
   transition: background 0.2s ease;
 }
@@ -343,8 +389,8 @@
 
 /* Selection color */
 ::selection {
-  background: #0f172a;
-  color: #ffffff;
+  background: var(--color-accent);
+  color: var(--color-accent-fg);
 }
 
 /* Tag Styles */
diff --git a/apps/web/app/(site)/layout.tsx b/apps/web/app/(site)/layout.tsx
index ac56257..3d82c4f 100644
--- a/apps/web/app/(site)/layout.tsx
+++ b/apps/web/app/(site)/layout.tsx
@@ -1,5 +1,5 @@
 import type { Metadata } from "next";
-import { Inter, Newsreader } from "next/font/google";
+import { Inter, JetBrains_Mono, Newsreader } from "next/font/google";
 import { Analytics } from "@/src/components/Analytics";
 import { Footer } from "@/src/components/Footer";
 import { Header } from "@/src/components/Header";
@@ -7,6 +7,11 @@ import { InteractiveElements } from "@/src/components/InteractiveElements";
 import "./globals.css";
 
 const inter = Inter({ subsets: ["latin"], variable: "--font-inter" });
+const jetbrainsMono = JetBrains_Mono({
+  subsets: ["latin"],
+  variable: "--font-jetbrains-mono",
+  display: "swap",
+});
 const newsreader = Newsreader({
   subsets: ["latin"],
   variable: "--font-newsreader",
@@ -14,14 +19,25 @@ const newsreader = Newsreader({
   display: "swap",
 });
 
+const DESCRIPTION =
+  "Senior engineer for teams that build fast with AI and don't want chaos. Strong in design and frontend, provably clean in architecture and tests. Remote, booked in weekly capacity blocks.";
+
 export const metadata: Metadata = {
   title: {
-    default: "Marc Mintel — Professionelle Websites für Unternehmen",
+    default: "Marc Mintel — Senior engineer for AI-built software",
     template: "%s | Marc Mintel",
   },
-  description:
-    "Professionelle Websites zum Fixpreis. Ein Entwickler, ein Ansprechpartner — von der Idee bis zum fertigen Ergebnis. Inklusive Sorglos-Paket: Änderungen, Wartung und Sicherheit komplett abgedeckt.",
+  description: DESCRIPTION,
   metadataBase: new URL("https://mintel.me"),
+  openGraph: {
+    type: "website",
+    siteName: "Marc Mintel",
+    title: "Marc Mintel — Senior engineer for AI-built software",
+    description: DESCRIPTION,
+    url: "https://mintel.me",
+    locale: "en_US",
+  },
+  twitter: { card: "summary_large_image" },
   icons: {
     icon: "/favicon.svg",
   },
@@ -33,8 +49,11 @@ export default function RootLayout({
   children: React.ReactNode;
 }) {
   return (
-    <html lang="de" className={`${inter.variable} ${newsreader.variable}`}>
-      <body className="min-h-screen bg-white">
+    <html
+      lang="en"
+      className={`${inter.variable} ${jetbrainsMono.variable} ${newsreader.variable}`}
+    >
+      <body className="min-h-screen bg-bg font-sans text-fg antialiased">
         <Header />
         <main>{children}</main>
         <Footer />
diff --git a/apps/web/app/(site)/legal/layout.tsx b/apps/web/app/(site)/legal/layout.tsx
new file mode 100644
index 0000000..1191fef
--- /dev/null
+++ b/apps/web/app/(site)/legal/layout.tsx
@@ -0,0 +1,9 @@
+import { LegacyLightSurface } from "@/src/components/LegacyLightSurface";
+
+export default function LegacyLayout({
+  children,
+}: {
+  children: React.ReactNode;
+}) {
+  return <LegacyLightSurface>{children}</LegacyLightSurface>;
+}
diff --git a/apps/web/app/(site)/notes/page.tsx b/apps/web/app/(site)/notes/page.tsx
new file mode 100644
index 0000000..46afd26
--- /dev/null
+++ b/apps/web/app/(site)/notes/page.tsx
@@ -0,0 +1,18 @@
+import type { Metadata } from "next";
+import { Container } from "@/src/components/site/Container";
+import { SectionHeader } from "@/src/components/site/SectionHeader";
+
+export const metadata: Metadata = { title: "Notes" };
+
+export default function Page() {
+  return (
+    <Container className="py-16 md:py-24">
+      <SectionHeader
+        as="h1"
+        kicker="/notes"
+        title="Notes"
+        lead="This page is coming soon."
+      />
+    </Container>
+  );
+}
diff --git a/apps/web/app/(site)/process/page.tsx b/apps/web/app/(site)/process/page.tsx
new file mode 100644
index 0000000..f9e74be
--- /dev/null
+++ b/apps/web/app/(site)/process/page.tsx
@@ -0,0 +1,18 @@
+import type { Metadata } from "next";
+import { Container } from "@/src/components/site/Container";
+import { SectionHeader } from "@/src/components/site/SectionHeader";
+
+export const metadata: Metadata = { title: "Process" };
+
+export default function Page() {
+  return (
+    <Container className="py-16 md:py-24">
+      <SectionHeader
+        as="h1"
+        kicker="/process"
+        title="Process"
+        lead="This page is coming soon."
+      />
+    </Container>
+  );
+}
diff --git a/apps/web/app/(site)/tags/layout.tsx b/apps/web/app/(site)/tags/layout.tsx
new file mode 100644
index 0000000..1191fef
--- /dev/null
+++ b/apps/web/app/(site)/tags/layout.tsx
@@ -0,0 +1,9 @@
+import { LegacyLightSurface } from "@/src/components/LegacyLightSurface";
+
+export default function LegacyLayout({
+  children,
+}: {
+  children: React.ReactNode;
+}) {
+  return <LegacyLightSurface>{children}</LegacyLightSurface>;
+}
diff --git a/apps/web/app/(site)/technologies/layout.tsx b/apps/web/app/(site)/technologies/layout.tsx
new file mode 100644
index 0000000..1191fef
--- /dev/null
+++ b/apps/web/app/(site)/technologies/layout.tsx
@@ -0,0 +1,9 @@
+import { LegacyLightSurface } from "@/src/components/LegacyLightSurface";
+
+export default function LegacyLayout({
+  children,
+}: {
+  children: React.ReactNode;
+}) {
+  return <LegacyLightSurface>{children}</LegacyLightSurface>;
+}
diff --git a/apps/web/app/(site)/websites/layout.tsx b/apps/web/app/(site)/websites/layout.tsx
new file mode 100644
index 0000000..1191fef
--- /dev/null
+++ b/apps/web/app/(site)/websites/layout.tsx
@@ -0,0 +1,9 @@
+import { LegacyLightSurface } from "@/src/components/LegacyLightSurface";
+
+export default function LegacyLayout({
+  children,
+}: {
+  children: React.ReactNode;
+}) {
+  return <LegacyLightSurface>{children}</LegacyLightSurface>;
+}
diff --git a/apps/web/src/components/Footer.tsx b/apps/web/src/components/Footer.tsx
index 976e54b..ee84ae9 100644
--- a/apps/web/src/components/Footer.tsx
+++ b/apps/web/src/components/Footer.tsx
@@ -1,66 +1,71 @@
-import Image from "next/image";
+import Link from "next/link";
 import * as React from "react";
 
-import LogoBlack from "../assets/logo/Logo-Black-Transparent.svg";
+import { AVAILABILITY_CONFIG } from "../content/site";
+import {
+  formatAvailability,
+  resolveAvailability,
+} from "../domain/availability";
+
+const NAV_LINKS = [
+  { href: "/notes", label: "Notes" },
+  { href: "/process", label: "Process" },
+  { href: "/about", label: "About" },
+  { href: "/book", label: "Book a call" },
+] as const;
+
+const LEGAL_LINKS = [
+  { href: "/legal/impressum", label: "Imprint" },
+  { href: "/legal/datenschutz", label: "Privacy" },
+  { href: "/legal/agb", label: "Terms" },
+] as const;
+
+const LINK_CLASS = "text-muted transition-colors hover:text-fg";
 
 export const Footer: React.FC = () => {
-  const currentYear = new Date().getFullYear();
+  const now = new Date();
+  const today = now.toISOString().slice(0, 10);
+  const availability = formatAvailability(
+    resolveAvailability(AVAILABILITY_CONFIG, today),
+  );
 
   return (
-    <footer className="relative py-10 md:py-16 mt-8 md:mt-24 border-t border-slate-100 bg-white z-10">
-      {/* Tech border at top */}
-      <div className="absolute top-0 left-0 right-0 h-px overflow-hidden">
-        <div
-          className="h-full w-full"
-          style={{
-            background:
-              "linear-gradient(90deg, transparent 0%, rgba(148, 163, 184, 0.15) 25%, rgba(191, 206, 228, 0.1) 50%, rgba(148, 163, 184, 0.15) 75%, transparent 100%)",
-          }}
-        />
-      </div>
-
-      <div className="narrow-container">
-        <div className="grid grid-cols-1 md:grid-cols-2 gap-8 md:gap-12 items-end">
-          <div className="space-y-6">
-            <div className="flex items-center gap-3">
-              <Image
-                src={LogoBlack}
-                alt="Marc Mintel"
-                height={64}
-                className="h-12 md:h-16 w-auto"
-              />
-            </div>
-          </div>
-
-          <div className="flex flex-col md:items-end gap-3 md:gap-4 text-xs md:text-sm font-mono text-slate-300 uppercase tracking-widest">
-            <span>© {currentYear}</span>
-            <div className="flex gap-8">
-              <a
-                href="/about"
-                className="hover:text-slate-900 transition-colors duration-300 no-underline"
-              >
-                Über mich
-              </a>
-              <a
-                href="/contact"
-                className="hover:text-slate-900 transition-colors duration-300 no-underline"
-              >
-                Kontakt
-              </a>
-              <a
-                href="https://github.com/marcmintel"
-                className="hover:text-slate-900 transition-colors duration-300 no-underline"
-              >
-                GitHub
-              </a>
-            </div>
-            {/* Subtle binary decoration */}
-            <span
-              className="text-[8px] text-slate-200 tracking-[0.5em] select-none font-mono"
-              aria-hidden="true"
+    <footer className="relative z-10 mt-16 border-t border-border bg-bg py-10 md:mt-24 md:py-14">
+      <div className="mx-auto w-full max-w-6xl px-5 md:px-8">
+        <p className="!mb-8 flex items-center gap-2 font-mono text-sm text-fg">
+          <span aria-hidden="true" className="h-2 w-2 rounded-full bg-accent" />
+          {availability}
+        </p>
+        <div className="flex flex-col gap-8 md:flex-row md:items-end md:justify-between">
+          <div className="space-y-4">
+            <p className="!mb-0 font-mono text-lg font-semibold text-fg">
+              mintel<span className="text-accent">.</span>me
+            </p>
+            <nav
+              aria-label="Footer"
+              className="flex flex-wrap gap-x-6 gap-y-2 text-sm"
             >
-              01001101 01001001 01001110
-            </span>
+              {NAV_LINKS.map((link) => (
+                <Link key={link.href} href={link.href} className={LINK_CLASS}>
+                  {link.label}
+                </Link>
+              ))}
+            </nav>
+          </div>
+          <div className="space-y-4 text-sm md:text-right">
+            <nav
+              aria-label="Legal"
+              className="flex flex-wrap gap-x-6 gap-y-2 md:justify-end"
+            >
+              {LEGAL_LINKS.map((link) => (
+                <Link key={link.href} href={link.href} className={LINK_CLASS}>
+                  {link.label}
+                </Link>
+              ))}
+            </nav>
+            <p className="!mb-0 font-mono text-xs text-faint">
+              © {now.getFullYear()} Marc Mintel
+            </p>
           </div>
         </div>
       </div>
diff --git a/apps/web/src/components/Header.tsx b/apps/web/src/components/Header.tsx
index 37c9195..0207403 100644
--- a/apps/web/src/components/Header.tsx
+++ b/apps/web/src/components/Header.tsx
@@ -1,25 +1,15 @@
 "use client";
 import { AnimatePresence, motion } from "framer-motion";
-import Image from "next/image";
 import Link from "next/link";
 import { useSafePathname } from "./analytics/useSafePathname";
 import * as React from "react";
 
-import IconWhite from "../assets/logo/Icon-White-Transparent.svg";
+import { ButtonLink } from "./site/ButtonLink";
 
 export const Header: React.FC = () => {
   const pathname = useSafePathname();
-  const [isScrolled, setIsScrolled] = React.useState(false);
   const [isMobileMenuOpen, setIsMobileMenuOpen] = React.useState(false);
 
-  React.useEffect(() => {
-    const handleScroll = () => {
-      setIsScrolled(window.scrollY > 20);
-    };
-    window.addEventListener("scroll", handleScroll);
-    return () => window.removeEventListener("scroll", handleScroll);
-  }, []);
-
   // Close mobile menu on pathname change and handle body scroll lock
   React.useEffect(() => {
     setIsMobileMenuOpen(false);
@@ -36,139 +26,93 @@ export const Header: React.FC = () => {
     };
   }, [isMobileMenuOpen]);
 
-  const isActive = (path: string) => pathname === path;
-
   const navLinks = [
-    { href: "/about", label: "Über mich" },
-    { href: "/websites", label: "Websites" },
-    { href: "/case-studies", label: "Case Studies", prefix: true },
-    { href: "/blog", label: "Blog", prefix: true },
-  ];
+    { href: "/notes", label: "Notes" },
+    { href: "/process", label: "Process" },
+    { href: "/about", label: "About" },
+  ] as const;
+
+  const linkActive = (href: string) =>
+    pathname === href || Boolean(pathname?.startsWith(`${href}/`));
+
+  const closeMenu = () => setIsMobileMenuOpen(false);
 
   return (
-    <header className="sticky top-0 z-[100] w-full">
-      {/* Decoupled Background Layer - Prevents backdrop-filter parent context bugs */}
-      <div
-        className={`absolute inset-0 transition-all duration-500 -z-10 ${isScrolled
-            ? "bg-white/70 backdrop-blur-xl border-b border-slate-100 shadow-sm shadow-slate-100/50"
-            : "bg-white/80 backdrop-blur-md border-b border-slate-50"
-          }`}
-      />
-
-      {/* Animated tech border at bottom */}
-      <div className="absolute bottom-0 left-0 right-0 h-px overflow-hidden pointer-events-none">
-        <div
-          className="h-full w-full"
-          style={{
-            background: isScrolled
-              ? "linear-gradient(90deg, transparent 0%, rgba(148, 163, 184, 0.15) 30%, rgba(191, 206, 228, 0.1) 50%, rgba(148, 163, 184, 0.15) 70%, transparent 100%)"
-              : "transparent",
-            transition: "background 0.5s ease",
-          }}
-        />
-      </div>
-
-      <div className="narrow-container py-4 flex items-center justify-between relative z-10">
-        <Link href="/" className="flex items-center gap-4 group">
-          <div className="flex items-center gap-3">
-            <div className="w-10 h-10 md:w-12 md:h-12 bg-black rounded-xl flex items-center justify-center group-hover:scale-105 transition-all duration-500 shadow-sm shrink-0 relative overflow-hidden">
-              <Image
-                src={IconWhite}
-                alt="Marc Mintel Icon"
-                width={32}
-                height={32}
-                className="w-6 h-6 md:w-8 md:h-8 relative z-10"
-              />
-            </div>
-          </div>
+    <header className="sticky top-0 z-[100] w-full border-b border-border bg-bg">
+      <div className="mx-auto flex w-full max-w-6xl items-center justify-between px-5 py-4 md:px-8">
+        <Link
+          href="/"
+          aria-label="mintel.me home"
+          className="font-mono text-lg font-semibold text-fg"
+        >
+          mintel<span className="text-accent">.</span>me
         </Link>
 
         {/* Desktop Navigation */}
-        <nav className="hidden md:flex items-center gap-8">
-          {navLinks.map((link) => {
-            const active = link.prefix
-              ? isActive(link.href) || pathname?.startsWith(`${link.href}/`)
-              : isActive(link.href);
-
-            return (
-              <Link
-                key={link.href}
-                href={link.href}
-                className={`text-xs font-bold uppercase tracking-widest transition-colors duration-300 relative ${active
-                    ? "text-slate-900"
-                    : "text-slate-400 hover:text-slate-900"
-                  }`}
-              >
-                {active && (
-                  <span className="absolute -bottom-1 left-0 right-0 flex justify-center">
-                    <span className="w-1 h-1 rounded-full bg-slate-900 animate-circuit-pulse" />
-                  </span>
-                )}
-                {link.label}
-              </Link>
-            );
-          })}
-          <Link
-            href="/contact"
-            className="text-[10px] font-bold uppercase tracking-[0.2em] text-slate-900 border border-slate-200 px-5 py-2.5 rounded-full hover:border-slate-400 hover:bg-slate-50 transition-all duration-500 hover:-translate-y-0.5 hover:shadow-lg hover:shadow-slate-100"
-            style={{
-              transitionTimingFunction: "cubic-bezier(0.23, 1, 0.32, 1)",
-            }}
-          >
-            Anfrage
-          </Link>
+        <nav aria-label="Main" className="hidden items-center gap-8 md:flex">
+          {navLinks.map((link) => (
+            <Link
+              key={link.href}
+              href={link.href}
+              aria-current={linkActive(link.href) ? "page" : undefined}
+              className={`text-sm transition-colors ${
+                linkActive(link.href) ? "text-fg" : "text-muted hover:text-fg"
+              }`}
+            >
+              {link.label}
+            </Link>
+          ))}
+          <ButtonLink href="/book">Book a call</ButtonLink>
         </nav>
 
         {/* Mobile Toggle */}
         <button
-          className="md:hidden relative z-[110] p-2 w-10 h-10 flex items-center justify-center rounded-xl bg-slate-900 text-white active:scale-90 transition-all duration-300 shadow-lg shadow-slate-200"
+          className="relative z-[110] flex h-10 w-10 items-center justify-center rounded-md border border-border-strong text-fg md:hidden"
           onClick={() => setIsMobileMenuOpen(!isMobileMenuOpen)}
           aria-label="Toggle Menu"
+          aria-expanded={isMobileMenuOpen}
         >
-          <div className="w-5 h-3.5 relative flex flex-col justify-between">
+          <div className="relative flex h-3.5 w-5 flex-col justify-between">
             <motion.span
               animate={
                 isMobileMenuOpen ? { rotate: 45, y: 7 } : { rotate: 0, y: 0 }
               }
               transition={{ duration: 0.3, ease: [0.23, 1, 0.32, 1] }}
-              className="w-full h-0.5 bg-current rounded-full origin-center"
+              className="h-0.5 w-full origin-center rounded-full bg-current"
             />
             <motion.span
               animate={
                 isMobileMenuOpen ? { opacity: 0, x: -10 } : { opacity: 1, x: 0 }
               }
               transition={{ duration: 0.2 }}
-              className="w-full h-0.5 bg-current rounded-full"
+              className="h-0.5 w-full rounded-full bg-current"
             />
             <motion.span
               animate={
                 isMobileMenuOpen ? { rotate: -45, y: -7 } : { rotate: 0, y: 0 }
               }
               transition={{ duration: 0.3, ease: [0.23, 1, 0.32, 1] }}
-              className="w-full h-0.5 bg-current rounded-full origin-center"
+              className="h-0.5 w-full origin-center rounded-full bg-current"
             />
           </div>
         </button>
       </div>
 
-      {/* Mobile Navigation - Bottom-Anchored Control Center */}
+      {/* Mobile Navigation - bottom sheet */}
       <AnimatePresence>
         {isMobileMenuOpen && (
-          <React.Fragment key="mobile-control-center">
-            {/* Dimmed Backdrop */}
+          <React.Fragment key="mobile-menu">
             <motion.div
-              key="cc-backdrop"
+              key="menu-backdrop"
               initial={{ opacity: 0 }}
               animate={{ opacity: 1 }}
               exit={{ opacity: 0 }}
               transition={{ duration: 0.25 }}
-              onClick={() => setIsMobileMenuOpen(false)}
-              className="fixed inset-0 z-[101] bg-black/30 backdrop-blur-sm md:hidden"
+              onClick={closeMenu}
+              className="fixed inset-0 z-[101] bg-black/60 md:hidden"
             />
-
-            {/* Bottom Sheet */}
             <motion.div
-              key="cc-sheet"
+              key="menu-sheet"
               initial={{ y: "100%" }}
               animate={{ y: 0 }}
               exit={{ y: "100%" }}
@@ -183,125 +127,44 @@ export const Header: React.FC = () => {
               dragElastic={0.15}
               onDragEnd={(_, info) => {
                 if (info.offset.y > 80 || info.velocity.y > 300) {
-                  setIsMobileMenuOpen(false);
+                  closeMenu();
                 }
               }}
-              className="fixed inset-x-0 bottom-0 z-[102] md:hidden bg-white rounded-t-[2rem] shadow-[0_-8px_40px_rgba(0,0,0,0.12)] flex flex-col max-h-[85vh] overflow-hidden"
+              className="fixed inset-x-0 bottom-0 z-[102] flex max-h-[85vh] flex-col overflow-hidden rounded-t-xl border-t border-border-strong bg-surface md:hidden"
             >
-              {/* Grab Handle */}
-              <div className="flex justify-center pt-3 pb-2 cursor-grab active:cursor-grabbing">
-                <div className="w-10 h-1 bg-slate-200 rounded-full" />
+              <div className="flex cursor-grab justify-center pb-2 pt-3 active:cursor-grabbing">
+                <div className="h-1 w-10 rounded-full bg-border-strong" />
               </div>
 
-              {/* Status Bar */}
-              <div className="px-6 py-3 flex justify-between items-center border-b border-slate-100/80">
-                <div className="flex items-center gap-2 text-[9px] font-mono font-bold tracking-[0.15em] text-slate-400 uppercase">
-                  <div className="w-1.5 h-1.5 rounded-full bg-green-500 animate-pulse" />
-                  Online
-                </div>
-                <div className="text-[9px] font-mono font-bold tracking-widest text-slate-400 uppercase">
-                  {pathname === "/"
-                    ? "HOME"
-                    : pathname.toUpperCase().replace(/^\//, "")}
-                </div>
-              </div>
-
-              {/* Tiled Navigation Grid */}
-              <div className="px-5 pt-5 pb-3 flex-1 overflow-y-auto">
-                <div className="grid grid-cols-2 gap-2.5">
-                  {[
-                    { href: "/about", label: "Über mich", sub: "Architect" },
-                    { href: "/websites", label: "Websites", sub: "Systems" },
-                    {
-                      href: "/case-studies",
-                      label: "Cases",
-                      sub: "Solutions",
-                      prefix: true,
-                    },
-                    {
-                      href: "/blog",
-                      label: "Blog",
-                      sub: "Insights",
-                      prefix: true,
-                    },
-                  ].map((item, i) => {
-                    const active = item.prefix
-                      ? pathname?.startsWith(item.href)
-                      : pathname === item.href;
-
-                    return (
-                      <motion.div
-                        key={item.href}
-                        initial={{ opacity: 0, scale: 0.85, y: 15 }}
-                        animate={{ opacity: 1, scale: 1, y: 0 }}
-                        transition={{
-                          delay: 0.05 + i * 0.04,
-                          type: "spring",
-                          stiffness: 400,
-                          damping: 25,
-                        }}
-                        whileTap={{ scale: 0.95 }}
+              <nav
+                aria-label="Mobile"
+                className="flex-1 overflow-y-auto px-5 pb-3 pt-2"
+              >
+                <ul className="m-0 list-none p-0">
+                  {navLinks.map((item) => (
+                    <li key={item.href} className="!mb-0">
+                      <Link
+                        href={item.href}
+                        onClick={closeMenu}
+                        aria-current={
+                          linkActive(item.href) ? "page" : undefined
+                        }
+                        className={`flex items-center justify-between border-b border-border py-4 text-lg ${
+                          linkActive(item.href) ? "text-accent" : "text-fg"
+                        }`}
                       >
-                        <Link
-                          href={item.href}
-                          onClick={() => setIsMobileMenuOpen(false)}
-                          className={`relative flex flex-col justify-center p-6 h-[110px] rounded-2xl border transition-all duration-200 ${active
-                              ? "bg-slate-50 border-slate-200 ring-1 ring-slate-200"
-                              : "bg-white border-slate-100 active:bg-slate-50"
-                            }`}
-                        >
-                          <div>
-                            <span className="text-[15px] font-black tracking-tight text-slate-900 block leading-tight mb-1">
-                              {item.label}
-                            </span>
-                            <span className="text-[9px] font-mono font-bold text-slate-400 uppercase tracking-[0.2em]">
-                              {item.sub}
-                            </span>
-                          </div>
-                          {active && (
-                            <div className="absolute top-4 right-4 w-1.5 h-1.5 rounded-full bg-slate-900" />
-                          )}
-                        </Link>
-                      </motion.div>
-                    );
-                  })}
-                </div>
-              </div>
+                        {item.label}
+                      </Link>
+                    </li>
+                  ))}
+                </ul>
+              </nav>
 
-              {/* Primary CTA */}
               <div className="px-5 pb-5 pt-2">
-                <motion.div
-                  initial={{ opacity: 0, y: 10 }}
-                  animate={{ opacity: 1, y: 0 }}
-                  transition={{ delay: 0.25, type: "spring", stiffness: 300 }}
-                  whileTap={{ scale: 0.97 }}
-                >
-                  <Link
-                    href="/contact"
-                    onClick={() => setIsMobileMenuOpen(false)}
-                    className="flex items-center justify-between w-full p-4 bg-slate-900 text-white rounded-2xl active:bg-slate-800 transition-colors"
-                  >
-                    <span className="text-[13px] font-bold uppercase tracking-[0.15em]">
-                      Projekt anfragen
-                    </span>
-                    <svg
-                      className="w-4 h-4 text-slate-400"
-                      fill="none"
-                      stroke="currentColor"
-                      viewBox="0 0 24 24"
-                    >
-                      <path
-                        strokeLinecap="round"
-                        strokeLinejoin="round"
-                        strokeWidth="2.5"
-                        d="M14 5l7 7m0 0l-7 7m7-7H3"
-                      />
-                    </svg>
-                  </Link>
-                </motion.div>
+                <ButtonLink href="/book" className="w-full">
+                  Book a call
+                </ButtonLink>
               </div>
-
-              {/* Safe-Area Spacer (iOS home indicator) */}
               <div className="h-[env(safe-area-inset-bottom,0px)]" />
             </motion.div>
           </React.Fragment>
diff --git a/apps/web/src/components/LegacyLightSurface.tsx b/apps/web/src/components/LegacyLightSurface.tsx
new file mode 100644
index 0000000..562814a
--- /dev/null
+++ b/apps/web/src/components/LegacyLightSurface.tsx
@@ -0,0 +1,6 @@
+import * as React from "react";
+
+/** Keeps pre-relaunch pages (blog, legal, ...) legible on the dark site shell. */
+export const LegacyLightSurface: React.FC<{ children: React.ReactNode }> = ({
+  children,
+}) => <div className="theme-light min-h-[60vh]">{children}</div>;
diff --git a/apps/web/src/components/site/ButtonLink.tsx b/apps/web/src/components/site/ButtonLink.tsx
new file mode 100644
index 0000000..9a9d53d
--- /dev/null
+++ b/apps/web/src/components/site/ButtonLink.tsx
@@ -0,0 +1,31 @@
+import Link from "next/link";
+import * as React from "react";
+
+type ButtonVariant = "primary" | "secondary";
+
+type ButtonLinkProps = {
+  readonly href: string;
+  readonly children: React.ReactNode;
+  readonly variant?: ButtonVariant;
+  readonly className?: string;
+};
+
+const BASE =
+  "inline-flex items-center justify-center rounded-md px-5 py-2.5 text-sm font-semibold transition-colors focus-visible:outline focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-accent";
+
+const VARIANTS: Record<ButtonVariant, string> = {
+  primary: "bg-accent !text-accent-fg hover:bg-accent-hover",
+  secondary:
+    "border border-border-strong !text-fg hover:border-muted hover:bg-surface",
+};
+
+export const ButtonLink: React.FC<ButtonLinkProps> = ({
+  href,
+  children,
+  variant = "primary",
+  className = "",
+}) => (
+  <Link href={href} className={`${BASE} ${VARIANTS[variant]} ${className}`}>
+    {children}
+  </Link>
+);
diff --git a/apps/web/src/components/site/Container.tsx b/apps/web/src/components/site/Container.tsx
new file mode 100644
index 0000000..b1d86a0
--- /dev/null
+++ b/apps/web/src/components/site/Container.tsx
@@ -0,0 +1,15 @@
+import * as React from "react";
+
+type ContainerProps = {
+  readonly children: React.ReactNode;
+  readonly className?: string;
+};
+
+export const Container: React.FC<ContainerProps> = ({
+  children,
+  className = "",
+}) => (
+  <div className={`mx-auto w-full max-w-6xl px-5 md:px-8 ${className}`}>
+    {children}
+  </div>
+);
diff --git a/apps/web/src/components/site/Pill.tsx b/apps/web/src/components/site/Pill.tsx
new file mode 100644
index 0000000..59bc37b
--- /dev/null
+++ b/apps/web/src/components/site/Pill.tsx
@@ -0,0 +1,9 @@
+import * as React from "react";
+
+type PillProps = { readonly children: React.ReactNode };
+
+export const Pill: React.FC<PillProps> = ({ children }) => (
+  <span className="inline-flex items-center rounded-full border border-accent px-3 py-1 font-mono text-xs text-accent">
+    {children}
+  </span>
+);
diff --git a/apps/web/src/components/site/SectionHeader.tsx b/apps/web/src/components/site/SectionHeader.tsx
new file mode 100644
index 0000000..77c0d3e
--- /dev/null
+++ b/apps/web/src/components/site/SectionHeader.tsx
@@ -0,0 +1,29 @@
+import * as React from "react";
+
+type SectionHeaderProps = {
+  readonly kicker: string;
+  readonly title: string;
+  readonly lead?: string;
+  readonly as?: "h1" | "h2";
+};
+
+export const SectionHeader: React.FC<SectionHeaderProps> = ({
+  kicker,
+  title,
+  lead,
+  as: Heading = "h2",
+}) => (
+  <header className="max-w-2xl">
+    <p className="mb-3 font-mono text-xs uppercase tracking-widest text-accent">
+      {kicker}
+    </p>
+    <Heading className="!mb-4 !mt-0 !text-3xl !leading-tight md:!text-4xl">
+      {title}
+    </Heading>
+    {lead ? (
+      <p className="!mb-0 text-base leading-relaxed text-muted md:text-lg">
+        {lead}
+      </p>
+    ) : null}
+  </header>
+);
diff --git a/apps/web/src/components/site/Stat.tsx b/apps/web/src/components/site/Stat.tsx
new file mode 100644
index 0000000..58865de
--- /dev/null
+++ b/apps/web/src/components/site/Stat.tsx
@@ -0,0 +1,15 @@
+import * as React from "react";
+
+type StatProps = {
+  readonly value: string;
+  readonly label: string;
+};
+
+export const Stat: React.FC<StatProps> = ({ value, label }) => (
+  <div>
+    <p className="!mb-1 font-mono text-2xl font-semibold text-fg md:text-3xl">
+      {value}
+    </p>
+    <p className="!mb-0 text-sm text-muted">{label}</p>
+  </div>
+);
diff --git a/apps/web/src/components/site/TerminalCard.tsx b/apps/web/src/components/site/TerminalCard.tsx
new file mode 100644
index 0000000..660b1ee
--- /dev/null
+++ b/apps/web/src/components/site/TerminalCard.tsx
@@ -0,0 +1,27 @@
+import * as React from "react";
+
+type TerminalCardProps = {
+  readonly title: string;
+  readonly children: React.ReactNode;
+  readonly className?: string;
+};
+
+export const TerminalCard: React.FC<TerminalCardProps> = ({
+  title,
+  children,
+  className = "",
+}) => (
+  <figure
+    className={`overflow-hidden rounded-lg border border-border bg-surface ${className}`}
+  >
+    <figcaption className="flex items-center gap-2 border-b border-border px-4 py-2.5 font-mono text-xs text-faint">
+      <span aria-hidden="true" className="text-accent">
+        ●
+      </span>
+      {title}
+    </figcaption>
+    <div className="overflow-x-auto p-4 font-mono text-sm leading-relaxed text-fg">
+      {children}
+    </div>
+  </figure>
+);
diff --git a/apps/web/src/components/site/index.ts b/apps/web/src/components/site/index.ts
new file mode 100644
index 0000000..d047a88
--- /dev/null
+++ b/apps/web/src/components/site/index.ts
@@ -0,0 +1,6 @@
+export { ButtonLink } from "./ButtonLink";
+export { Container } from "./Container";
+export { Pill } from "./Pill";
+export { SectionHeader } from "./SectionHeader";
+export { Stat } from "./Stat";
+export { TerminalCard } from "./TerminalCard";
diff --git a/apps/web/src/content/site.ts b/apps/web/src/content/site.ts
new file mode 100644
index 0000000..e18f491
--- /dev/null
+++ b/apps/web/src/content/site.ts
@@ -0,0 +1,62 @@
+import {
+  parseAvailabilityConfig,
+  type AvailabilityConfig,
+} from "@/src/domain/availability";
+
+export const SITE_NAME = "Marc Mintel";
+export const SITE_URL = "https://mintel.me";
+
+// TODO(owner): replace with the real Cal.com link before launch.
+export const BOOKING_URL = "https://cal.com/PLACEHOLDER/intro";
+
+// TODO(owner): replace with the real contact address before launch.
+export const CONTACT_EMAIL = "hello@example.com";
+
+// PLACEHOLDER VALUES: the owner must confirm the next free date and weekly hours.
+const RAW_AVAILABILITY_CONFIG = {
+  freeFrom: "2026-11-01",
+  hoursPerWeek: 20,
+} as const;
+
+const parsedAvailability = parseAvailabilityConfig(RAW_AVAILABILITY_CONFIG);
+if (parsedAvailability.ok === false) {
+  throw new Error(
+    `Invalid AVAILABILITY_CONFIG in src/content/site.ts: ${parsedAvailability.error}`,
+  );
+}
+export const AVAILABILITY_CONFIG: AvailabilityConfig = parsedAvailability.value;
+
+export type EngagementBlock = {
+  readonly name: string;
+  readonly hoursPerWeek: string;
+  readonly pricePerMonth: string;
+};
+
+export const ENGAGEMENT_BLOCKS: readonly EngagementBlock[] = [
+  {
+    name: "Focus",
+    hoursPerWeek: "15 h/week",
+    pricePerMonth: "6,000 EUR/month",
+  },
+  {
+    name: "Half-time",
+    hoursPerWeek: "20 h/week",
+    pricePerMonth: "8,000 EUR/month",
+  },
+  {
+    name: "Full-time",
+    hoursPerWeek: "35-40 h/week",
+    pricePerMonth: "14,000-16,000 EUR/month",
+  },
+];
+
+export const STACK: readonly string[] = [
+  "TypeScript",
+  "Next.js",
+  "React",
+  "Node.js",
+  "Rust",
+  "Solidity",
+  "PostgreSQL",
+  "Tailwind CSS",
+];
diff --git a/apps/web/tailwind.config.js b/apps/web/tailwind.config.js
index d38bce8..f470505 100644
--- a/apps/web/tailwind.config.js
+++ b/apps/web/tailwind.config.js
@@ -1,66 +1,78 @@
-import typography from '@tailwindcss/typography';
+import typography from "@tailwindcss/typography";
 
 /** @type {import('tailwindcss').Config} */
 export default {
-  content: [
-    './app/**/*.{js,ts,jsx,tsx,mdx}',
-    './src/**/*.{js,ts,jsx,tsx,mdx}',
-  ],
+  content: ["./app/**/*.{js,ts,jsx,tsx,mdx}", "./src/**/*.{js,ts,jsx,tsx,mdx}"],
   theme: {
     extend: {
       borderRadius: {
-        'xl': '1rem',
-        '2xl': '1.5rem',
-        '3xl': '2rem',
-        'full': '9999px',
+        xl: "1rem",
+        "2xl": "1.5rem",
+        "3xl": "2rem",
+        full: "9999px",
       },
       colors: {
+        bg: "var(--color-bg)",
+        surface: "var(--color-surface)",
+        fg: "var(--color-fg)",
+        muted: "var(--color-muted)",
+        faint: "var(--color-faint)",
+        border: "var(--color-border)",
+        "border-strong": "var(--color-border-strong)",
+        accent: {
+          DEFAULT: "var(--color-accent)",
+          hover: "var(--color-accent-hover)",
+          fg: "var(--color-accent-fg)",
+        },
         slate: {
-          850: '#1e293b',
-          900: '#0f172a',
-          950: '#020617',
-        }
+          850: "#1e293b",
+          900: "#0f172a",
+          950: "#020617",
+        },
       },
       fontFamily: {
-        sans: ['var(--font-inter)', 'Inter', 'system-ui', 'sans-serif'],
-        serif: ['var(--font-newsreader)', 'Georgia', 'serif'],
-        mono: ['JetBrains Mono', 'monospace'],
+        sans: ["var(--font-inter)", "Inter", "system-ui", "sans-serif"],
+        serif: ["var(--font-newsreader)", "Georgia", "serif"],
+        mono: [
+          "var(--font-jetbrains-mono)",
+          "JetBrains Mono",
+          "ui-monospace",
+          "monospace",
+        ],
       },
       typography: (theme) => ({
         DEFAULT: {
           css: {
-            color: theme('colors.slate.800'),
+            color: theme("colors.slate.800"),
             a: {
-              color: theme('colors.slate.900'),
-              '&:hover': {
-                color: theme('colors.slate.700'),
+              color: theme("colors.slate.900"),
+              "&:hover": {
+                color: theme("colors.slate.700"),
               },
             },
           },
         },
       }),
       animation: {
-        'fade-in': 'fadeIn 0.5s ease-in-out',
-        'slide-up': 'slideUp 0.6s ease-out',
-        'slide-down': 'slideDown 0.6s ease-out',
+        "fade-in": "fadeIn 0.5s ease-in-out",
+        "slide-up": "slideUp 0.6s ease-out",
+        "slide-down": "slideDown 0.6s ease-out",
       },
       keyframes: {
         fadeIn: {
-          '0%': { opacity: '0' },
-          '100%': { opacity: '1' },
+          "0%": { opacity: "0" },
+          "100%": { opacity: "1" },
         },
         slideUp: {
-          '0%': { transform: 'translateY(20px)', opacity: '0' },
-          '100%': { transform: 'translateY(0)', opacity: '1' },
+          "0%": { transform: "translateY(20px)", opacity: "0" },
+          "100%": { transform: "translateY(0)", opacity: "1" },
         },
         slideDown: {
-          '0%': { transform: 'translateY(-20px)', opacity: '0' },
-          '100%': { transform: 'translateY(0)', opacity: '1' },
+          "0%": { transform: "translateY(-20px)", opacity: "0" },
+          "100%": { transform: "translateY(0)", opacity: "1" },
         },
       },
     },
   },
-  plugins: [
-    typography,
-  ],
-}
+  plugins: [typography],
+};