feat: Added hero tagline "Production Knowledge, Distilled", value propo…

- "frontend/src/pages/Home.tsx"
- "frontend/src/App.css"

GSD-Task: S01/T01

frontend/src/App.css

@@ -865,7 +865,7 @@ a.app-footer__repo:hover {
 
 .home-hero {
   text-align: center;
-  padding: 0.5rem 1rem 1.5rem;
+  padding: 2rem 1rem 2.5rem;
 }
 
 .home-hero__title {
@@ -881,6 +881,78 @@ a.app-footer__repo:hover {
   margin-bottom: 1.5rem;
 }
 
+.home-hero__value-prop {
+  max-width: 32rem;
+  margin: 1.5rem auto 0;
+  font-size: 1.0625rem;
+  line-height: 1.6;
+  color: var(--color-text-secondary);
+}
+
+/* ── How It Works ─────────────────────────────────────────────────────────── */
+
+.home-how-it-works {
+  display: grid;
+  grid-template-columns: repeat(3, 1fr);
+  gap: 1.25rem;
+  max-width: 42rem;
+  margin: 2rem auto 0;
+}
+
+.home-how-it-works__step {
+  padding: 1.25rem 1rem;
+  background: var(--color-bg-surface);
+  border: 1px solid var(--color-border);
+  border-radius: 0.625rem;
+  text-align: center;
+}
+
+.home-how-it-works__number {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  width: 2rem;
+  height: 2rem;
+  border-radius: 50%;
+  background: var(--color-accent);
+  color: var(--color-bg-page);
+  font-weight: 700;
+  font-size: 0.875rem;
+  margin-bottom: 0.75rem;
+}
+
+.home-how-it-works__title {
+  font-size: 0.9375rem;
+  font-weight: 600;
+  margin-bottom: 0.375rem;
+}
+
+.home-how-it-works__desc {
+  font-size: 0.8125rem;
+  color: var(--color-text-secondary);
+  line-height: 1.5;
+}
+
+/* ── CTA Button ───────────────────────────────────────────────────────────── */
+
+.home-cta {
+  display: inline-block;
+  margin-top: 2rem;
+  padding: 0.75rem 2rem;
+  background: var(--color-accent);
+  color: var(--color-bg-page);
+  font-weight: 700;
+  font-size: 1rem;
+  border-radius: 0.5rem;
+  text-decoration: none;
+  transition: background 0.15s, transform 0.15s;
+}
+
+.home-cta:hover {
+  background: var(--color-accent-hover);
+  transform: translateY(-1px);
+}
+
 /* ── Search form ──────────────────────────────────────────────────────────── */
 
 .search-container {
@@ -2079,6 +2151,16 @@ a.app-footer__repo:hover {
     font-size: 1.75rem;
   }
 
+  .home-how-it-works {
+    grid-template-columns: 1fr;
+    max-width: 20rem;
+  }
+
+  .home-cta {
+    width: 100%;
+    text-align: center;
+  }
+
   .nav-cards {
     grid-template-columns: 1fr;
   }

frontend/src/pages/Home.tsx

@@ -110,7 +110,7 @@ export default function Home() {
     <div className="home">
       {/* Hero search */}
       <section className="home-hero">
-        
+        <h1 className="home-hero__title">Production Knowledge, Distilled</h1>
         <p className="home-hero__subtitle">
           Search techniques, key moments, and creators
         </p>
@@ -167,6 +167,37 @@ export default function Home() {
             </div>
           )}
         </div>
+
+        <p className="home-hero__value-prop">
+          Real music production techniques extracted from creator tutorials.
+          Skip the 4-hour videos — find the insight you need in seconds.
+        </p>
+
+        <div className="home-how-it-works">
+          <div className="home-how-it-works__step">
+            <span className="home-how-it-works__number">1</span>
+            <h3 className="home-how-it-works__title">Creators Share Techniques</h3>
+            <p className="home-how-it-works__desc">
+              Real producers and sound designers publish in-depth tutorials
+            </p>
+          </div>
+          <div className="home-how-it-works__step">
+            <span className="home-how-it-works__number">2</span>
+            <h3 className="home-how-it-works__title">AI Extracts Key Moments</h3>
+            <p className="home-how-it-works__desc">
+              We distill hours of video into structured, searchable knowledge
+            </p>
+          </div>
+          <div className="home-how-it-works__step">
+            <span className="home-how-it-works__number">3</span>
+            <h3 className="home-how-it-works__title">You Find Answers Fast</h3>
+            <p className="home-how-it-works__desc">
+              Search by topic, technique, or creator — get straight to the insight
+            </p>
+          </div>
+        </div>
+
+        <Link to="/topics" className="btn home-cta">Start Exploring</Link>
       </section>
 
       {/* Navigation cards */}