diff --git a/.gitignore b/.gitignore
index 1cac559..db0c620 100644
--- a/.gitignore
+++ b/.gitignore
@@ -22,4 +22,4 @@ dist-ssr
 *.njsproj
 *.sln
 *.sw?
-.env
\ No newline at end of file
+.env.astro
diff --git a/src/layouts/Base.astro b/src/layouts/Base.astro
index 8850a71..faf5147 100644
--- a/src/layouts/Base.astro
+++ b/src/layouts/Base.astro
@@ -29,7 +29,8 @@ const ogImage = new URL("/og.png", Astro.site);
     <meta property="og:image" content={ogImage} />
     <meta name="twitter:card" content="summary_large_image" />
     <script is:inline>
-      // Apply the saved theme before first paint to avoid a flash.
+      // Mark JS as available (enables reveal animations) and apply the saved theme before first paint.
+      document.documentElement.classList.add("js");
       try {
         var t = localStorage.getItem("theme");
         if (t === "light" || t === "dark") document.documentElement.dataset.theme = t;
diff --git a/src/pages/index.astro b/src/pages/index.astro
index ec8f3bb..eb81760 100644
--- a/src/pages/index.astro
+++ b/src/pages/index.astro
@@ -19,6 +19,8 @@ const jsonLd = {
 <Base>
   <script type="application/ld+json" set:html={JSON.stringify(jsonLd)} />
 
+  <div class="progress" id="progress" aria-hidden="true"></div>
+
   <header class="site">
     <div class="wrap">
       <a class="brand" href="#top">ersin<span>@</span>mutlu</a>
@@ -47,7 +49,7 @@ const jsonLd = {
             <a class="btn" href={profile.links.linkedin} target="_blank" rel="noopener">LinkedIn</a>
           </div>
         </div>
-        <Image src={profilePic} alt="Portrait of Ersin Mutlu" width={352} height={352} loading="eager" />
+        <div class="avatar"><Image src={profilePic} alt="Portrait of Ersin Mutlu" width={352} height={352} loading="eager" /></div>
       </div>
     </section>
 
@@ -150,6 +152,9 @@ const jsonLd = {
 
   <script>
     const root = document.documentElement;
+    const reduced = matchMedia("(prefers-reduced-motion: reduce)").matches;
+
+    // Theme toggle
     document.getElementById("theme-toggle")?.addEventListener("click", () => {
       const current =
         root.dataset.theme ??
@@ -158,5 +163,77 @@ const jsonLd = {
       root.dataset.theme = next;
       try { localStorage.setItem("theme", next); } catch {}
     });
+
+    // Scroll progress bar
+    const bar = document.getElementById("progress");
+    const onScroll = () => {
+      const max = root.scrollHeight - innerHeight;
+      if (bar) bar.style.transform = `scaleX(${max > 0 ? scrollY / max : 0})`;
+    };
+    addEventListener("scroll", onScroll, { passive: true });
+    onScroll();
+
+    // Reveal on scroll (staggered inside each group)
+    const targets = document.querySelectorAll<HTMLElement>(
+      "section:not(.hero) h2, .about p, .skills .card, .job, .grid .card, .post, .note, .contact p, .contact .actions",
+    );
+    if (reduced || !("IntersectionObserver" in window)) {
+      targets.forEach((el) => el.classList.add("in"));
+    } else {
+      const io = new IntersectionObserver(
+        (entries) => {
+          for (const e of entries) {
+            if (e.isIntersecting) {
+              e.target.classList.add("in");
+              io.unobserve(e.target);
+            }
+          }
+        },
+        { threshold: 0.12, rootMargin: "0px 0px -40px 0px" },
+      );
+      targets.forEach((el) => {
+        const siblings = el.parentElement ? [...el.parentElement.children] : [];
+        el.style.setProperty("--i", String(Math.min(siblings.indexOf(el), 6)));
+        el.classList.add("reveal");
+        io.observe(el);
+      });
+    }
+
+    // Active nav link (scrollspy)
+    const links = new Map<string, HTMLAnchorElement>();
+    document.querySelectorAll<HTMLAnchorElement>("nav a[href^='#']").forEach((a) => links.set(a.hash.slice(1), a));
+    const spy = new IntersectionObserver(
+      (entries) => {
+        for (const e of entries) {
+          if (e.isIntersecting) {
+            links.forEach((a) => a.removeAttribute("aria-current"));
+            links.get(e.target.id)?.setAttribute("aria-current", "true");
+          }
+        }
+      },
+      { rootMargin: "-45% 0px -50% 0px" },
+    );
+    document.querySelectorAll("main section[id]").forEach((s) => spy.observe(s));
+
+    // Cursor spotlight on cards
+    document.querySelectorAll<HTMLElement>(".card").forEach((card) => {
+      card.addEventListener("pointermove", (e) => {
+        const r = card.getBoundingClientRect();
+        card.style.setProperty("--mx", `${e.clientX - r.left}px`);
+        card.style.setProperty("--my", `${e.clientY - r.top}px`);
+      });
+    });
+
+    // Subtle tilt on the avatar
+    const avatar = document.querySelector<HTMLElement>(".avatar");
+    if (avatar && !reduced) {
+      avatar.addEventListener("pointermove", (e) => {
+        const r = avatar.getBoundingClientRect();
+        const x = (e.clientX - r.left) / r.width - 0.5;
+        const y = (e.clientY - r.top) / r.height - 0.5;
+        avatar.style.transform = `perspective(600px) rotateY(${x * 14}deg) rotateX(${-y * 14}deg) scale(1.04)`;
+      });
+      avatar.addEventListener("pointerleave", () => (avatar.style.transform = ""));
+    }
   </script>
 </Base>
diff --git a/src/styles/global.css b/src/styles/global.css
index 6d0e43d..f4b58f2 100644
--- a/src/styles/global.css
+++ b/src/styles/global.css
@@ -81,10 +81,9 @@ nav a:hover { color: var(--text); }
 .hero h1 { font-size: clamp(2.5rem, 7vw, 4rem); letter-spacing: -0.02em; }
 .hero .role { font-size: clamp(1.1rem, 3vw, 1.5rem); color: var(--muted); margin: .5rem 0 1.5rem; }
 .hero .tagline { max-width: 36rem; color: var(--muted); margin: 0 0 2rem; }
-.hero img { width: 11rem; height: 11rem; border-radius: 50%; object-fit: cover; border: 2px solid var(--border); }
+.hero img { border-radius: 50%; object-fit: cover; border: 2px solid var(--border); display: block; }
 @media (max-width: 40rem) {
   .hero .wrap { grid-template-columns: 1fr; }
-  .hero img { order: -1; width: 7.5rem; height: 7.5rem; }
 }
 .actions { display: flex; flex-wrap: wrap; gap: .75rem; }
 .btn {
@@ -138,3 +137,96 @@ a.project:hover { border-color: var(--accent); transform: translateY(-2px); }
 footer.site { border-top: 1px solid var(--border); padding: 2rem 0; color: var(--muted); font-size: .88rem; }
 footer.site .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: .5rem; }
 
+
+/* ---------- Motion & interaction ---------- */
+.progress {
+  position: fixed; inset: 0 0 auto 0; height: 3px; z-index: 20;
+  background: var(--accent); transform: scaleX(0); transform-origin: left;
+}
+
+/* Nav: animated underline + active state */
+nav a:not(.theme-toggle) { position: relative; padding: .25rem 0; transition: color .2s; }
+nav a:not(.theme-toggle)::after {
+  content: ""; position: absolute; left: 0; right: 0; bottom: -2px; height: 2px;
+  background: var(--accent); transform: scaleX(0); transform-origin: left; transition: transform .25s ease;
+}
+nav a:hover::after, nav a[aria-current="true"]::after { transform: scaleX(1); }
+nav a[aria-current="true"] { color: var(--text); }
+.brand { transition: letter-spacing .25s; }
+.brand:hover { letter-spacing: .04em; }
+.theme-toggle { transition: transform .4s ease, border-color .2s, background .2s; }
+.theme-toggle:hover { transform: rotate(180deg); background: var(--surface); }
+
+/* Buttons */
+.btn { transition: transform .2s ease, box-shadow .2s ease, border-color .2s, background .2s; }
+.btn:hover { transform: translateY(-3px); box-shadow: 0 8px 20px -8px color-mix(in srgb, var(--accent) 60%, transparent); }
+.btn:active { transform: translateY(-1px); }
+
+/* Cards: lift + cursor spotlight */
+.card { position: relative; overflow: hidden; transition: transform .25s ease, border-color .25s, box-shadow .25s; }
+.card::before {
+  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: 0; transition: opacity .25s;
+  background: radial-gradient(18rem circle at var(--mx, 50%) var(--my, 50%), color-mix(in srgb, var(--accent) 16%, transparent), transparent 70%);
+}
+.card:hover { transform: translateY(-4px); border-color: var(--accent); box-shadow: 0 14px 30px -18px color-mix(in srgb, var(--accent) 55%, transparent); }
+.card:hover::before { opacity: 1; }
+.card > * { position: relative; }
+a.project:hover { transform: translateY(-4px); }
+.project::after { content: "↗"; position: absolute; top: 1rem; right: 1.1rem; color: var(--accent); opacity: 0; transform: translate(-4px, 4px); transition: .25s; }
+a.project:hover::after { opacity: 1; transform: none; }
+
+/* Chips */
+.chips li { transition: color .2s, border-color .2s, background .2s, transform .2s; }
+.chips li:hover { color: var(--accent); border-color: var(--accent); background: color-mix(in srgb, var(--accent) 10%, transparent); transform: translateY(-2px); }
+
+/* Language links */
+.langs a { transition: transform .2s, border-color .2s, color .2s, background .2s; }
+.langs a:hover { transform: translateY(-2px); background: color-mix(in srgb, var(--accent) 10%, transparent); }
+
+/* Timeline dot pulse + job hover */
+.job::before { transition: transform .25s; }
+.job:hover::before { transform: scale(1.5); }
+.job:first-child::before { animation: pulse 2.4s ease-out infinite; }
+@keyframes pulse {
+  0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent) 55%, transparent); }
+  80%, 100% { box-shadow: 0 0 0 10px transparent; }
+}
+
+/* Avatar */
+.avatar { width: 11rem; height: 11rem; border-radius: 50%; position: relative; transition: transform .2s ease-out; will-change: transform; }
+.avatar::before {
+  content: ""; position: absolute; inset: -6px; border-radius: 50%; z-index: -1;
+  background: conic-gradient(from 0deg, var(--accent), transparent 40%, var(--accent));
+  opacity: .55; animation: spin 8s linear infinite; filter: blur(8px);
+}
+.avatar img { width: 100%; height: 100%; }
+@keyframes spin { to { transform: rotate(360deg); } }
+@media (max-width: 40rem) { .avatar { order: -1; width: 7.5rem; height: 7.5rem; } }
+
+/* Hero entrance + blinking cursor */
+.hero .wrap > div > *, .hero .avatar { animation: rise .7s cubic-bezier(.2,.7,.2,1) both; }
+.hero .wrap > div > :nth-child(1) { animation-delay: .05s; }
+.hero .wrap > div > :nth-child(2) { animation-delay: .15s; }
+.hero .wrap > div > :nth-child(3) { animation-delay: .25s; }
+.hero .wrap > div > :nth-child(4) { animation-delay: .35s; }
+.hero .wrap > div > :nth-child(5) { animation-delay: .45s; }
+.hero .avatar { animation-delay: .3s; }
+@keyframes rise { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }
+.eyebrow::after { content: "▍"; margin-left: .25rem; animation: blink 1s steps(2, start) infinite; }
+@keyframes blink { to { visibility: hidden; } }
+
+/* Section headings: animated prompt */
+h2::before { display: inline-block; transition: transform .3s; }
+h2:hover::before { transform: translateX(4px); }
+
+/* Scroll reveal (only when JS is available) */
+.js .reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s cubic-bezier(.2,.7,.2,1); transition-delay: calc(var(--i, 0) * 80ms); }
+.js .reveal.in { opacity: 1; transform: none; }
+/* Keep hover transforms snappy once revealed */
+.js .card.reveal.in:hover { transform: translateY(-4px); }
+.js .card.reveal.in { transition: opacity .6s ease, transform .25s ease, border-color .25s, box-shadow .25s; transition-delay: calc(var(--i, 0) * 80ms), 0s, 0s, 0s; }
+
+@media (prefers-reduced-motion: reduce) {
+  *, *::before, *::after { animation: none !important; transition: none !important; }
+  .js .reveal { opacity: 1; transform: none; }
+}