feat: add Hero section, fix logo with Caveat font + brush stroke SVG

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

app/components/Hero.tsx

@@ -0,0 +1,73 @@
+import Link from "next/link";
+import Image from "next/image";
+
+export function Hero() {
+  return (
+    <section className="bg-[#f5f0e8] flex items-stretch min-h-[36.4375rem]">
+      {/* Left: text content */}
+      <div className="flex-1 flex flex-col justify-center gap-6 px-[5rem] py-[3.625rem]">
+        {/* Heading */}
+        <h1
+          className="text-[clamp(2.5rem,4.5vw,4.5rem)] font-extrabold leading-[1.08] tracking-tight text-[#1a1a1a]"
+          style={{ fontFamily: "var(--font-playfair)" }}
+        >
+          Produktivität
+          <br />
+          darf sich leicht
+          <br />
+          anfühlen<span className="text-[#f5c518]">.</span>
+        </h1>
+
+        {/* Subheading */}
+        <p className="text-[1.125rem] font-medium text-[#1a1a1a] leading-[1.4] max-w-[22rem]">
+          Für Menschen mit Familie,
+          <br />
+          Verantwortung und zu wenig Zeit
+        </p>
+
+        {/* CTA button */}
+        <Link
+          href="/challenge"
+          className="inline-flex items-center gap-3 self-start px-6 py-4 rounded-xl bg-[#f5c518] text-[1rem] font-bold text-[#1a1a1a] hover:brightness-95 transition-all"
+        >
+          Starte mit der 7-Tage-Challenge
+          <span className="text-[#1a1a1a]">✓</span>
+        </Link>
+
+        {/* Social proof */}
+        <div className="flex items-center gap-3">
+          <div className="flex -space-x-2">
+            {[
+              { bg: "#c8a882", label: "Person 1" },
+              { bg: "#a0785a", label: "Person 2" },
+              { bg: "#8b6b5a", label: "Person 3" },
+            ].map((a) => (
+              <div
+                key={a.label}
+                className="w-9 h-9 rounded-full border-2 border-[#f5f0e8]"
+                style={{ background: a.bg }}
+                aria-label={a.label}
+              />
+            ))}
+          </div>
+          <p className="text-[0.875rem] text-[#3a3a3a] leading-[1.3]">
+            <span className="font-semibold">10.000+</span> Menschen vertrauen
+            <br />
+            einfach-produktiv
+          </p>
+        </div>
+      </div>
+
+      {/* Right: hero image */}
+      <div className="relative w-[48%] shrink-0 overflow-hidden">
+        <Image
+          src="/hero.jpg"
+          alt="Notizbuch mit Tagesplan und Kaffee"
+          fill
+          className="object-cover object-center"
+          priority
+        />
+      </div>
+    </section>
+  );
+}

app/components/Navbar.tsx

@@ -13,17 +13,28 @@ export function Navbar() {
       <div className="w-full flex items-center justify-between gap-8">
 
         {/* Logo */}
-        <Link href="/" className="flex flex-col gap-0.5 shrink-0">
-          <span className="relative inline-block px-2 py-0.5">
+        <Link href="/" className="flex flex-col gap-1 shrink-0">
+          <span className="relative inline-block">
+            {/* Brush stroke SVG background */}
+            <svg
+              className="absolute inset-0 w-full h-full"
+              viewBox="0 0 180 36"
+              preserveAspectRatio="none"
+              aria-hidden="true"
+            >
+              <path
+                d="M4,8 C20,2 60,0 100,3 C130,5 165,4 176,9 C180,14 178,22 172,27 C155,34 110,36 70,35 C35,34 5,32 2,26 C-1,20 2,12 4,8 Z"
+                fill="#f5c518"
+              />
+            </svg>
             <span
-              className="absolute inset-0 rounded-sm -skew-x-2"
-              style={{ background: "#f5c518", opacity: 0.85 }}
-            />
-            <span className="relative font-bold text-[1.375rem] text-[#1a1a1a] leading-tight tracking-tight italic">
+              className="relative text-[1.5rem] font-bold text-[#1a1a1a] leading-none px-3 py-1.5 block"
+              style={{ fontFamily: "var(--font-caveat)" }}
+            >
               einfach produktiv
             </span>
           </span>
-          <span className="text-[0.5rem] uppercase tracking-[0.15em] text-[#6b6b6b] pl-2">
+          <span className="text-[0.5rem] uppercase tracking-[0.12em] text-[#6b6b6b] pl-1">
             Weil du auch noch ein Leben hast
           </span>
         </Link>