diff --git a/apps/site/src/components/Hero.astro b/apps/site/src/components/Hero.astro
index 3dcb6cf..470d1ce 100644
--- a/apps/site/src/components/Hero.astro
+++ b/apps/site/src/components/Hero.astro
@@ -33,7 +33,7 @@ const { c, ui } = Astro.props;
       </div>
 
       <p class="hero-links">
-        {c.links.map((l) => <a href={l.href}>{l.label}</a>)}
+        {c.links.map((l) => <a class="link-grow" href={l.href}>{l.label}</a>)}
       </p>
     </div>
 
diff --git a/apps/site/src/components/Install.astro b/apps/site/src/components/Install.astro
index e6951b0..b2d531e 100644
--- a/apps/site/src/components/Install.astro
+++ b/apps/site/src/components/Install.astro
@@ -30,7 +30,7 @@ const { c, ui } = Astro.props;
       <dl class="cmds">
         {
           c.commands.map((x) => (
-            <div class="cmd-row glass">
+            <div class="cmd-row glass lift">
               <dt class="mono">{x.cmd}</dt>
               <dd class="muted">{x.what}</dd>
             </div>
diff --git a/apps/site/src/components/Materials.astro b/apps/site/src/components/Materials.astro
index f5f2732..adc9c4d 100644
--- a/apps/site/src/components/Materials.astro
+++ b/apps/site/src/components/Materials.astro
@@ -23,7 +23,7 @@ const { c } = Astro.props;
       {
         c.tiles.map((t, i) => (
           <li class="tile reveal" style={`--reveal-delay:${i * 80}ms`}>
-            <div class="shell">
+            <div class="shell lift">
               <div class="core">
                 <div class={`swatch swatch-${t.id}`} aria-hidden="true"></div>
               </div>
diff --git a/apps/site/src/components/Metrics.astro b/apps/site/src/components/Metrics.astro
index 05ab418..b680f88 100644
--- a/apps/site/src/components/Metrics.astro
+++ b/apps/site/src/components/Metrics.astro
@@ -16,7 +16,7 @@ const rest = c.items.filter((m) => !m.feature);
   <div class="full bento">
     {
       feature.map((m, i) => (
-        <div class="cell cell-lg glass glass-2 reveal" style={`--reveal-delay:${i * 70}ms`}>
+        <div class="cell cell-lg glass glass-2 lift reveal" style={`--reveal-delay:${i * 70}ms`}>
           <span class="cell-value nums">{m.value}</span>
           <span class="cell-label">{m.label}</span>
           <span class="cell-note muted">{m.note}</span>
@@ -25,7 +25,7 @@ const rest = c.items.filter((m) => !m.feature);
     }
     {
       rest.map((m, i) => (
-        <div class="cell glass reveal" style={`--reveal-delay:${(i + 2) * 70}ms`}>
+        <div class="cell glass lift reveal" style={`--reveal-delay:${(i + 2) * 70}ms`}>
           <span class="cell-value nums">{m.value}</span>
           <span class="cell-label">{m.label}</span>
           <span class="cell-note muted">{m.note}</span>
diff --git a/apps/site/src/components/Pipeline.astro b/apps/site/src/components/Pipeline.astro
index a81986a..0e70e18 100644
--- a/apps/site/src/components/Pipeline.astro
+++ b/apps/site/src/components/Pipeline.astro
@@ -114,6 +114,15 @@ const { c } = Astro.props;
     padding-left: var(--space-3);
     border-left: 2px solid var(--accent);
   }
+  @media (prefers-reduced-motion: no-preference) {
+    .stop::before {
+      transition: transform var(--dur-quick) var(--ease-out);
+    }
+    .stop:hover::before { transform: scale(1.5); }
+    .stop-becomes { transition: border-color var(--dur-quick) var(--ease-out); }
+    .stop:hover .stop-becomes { border-color: var(--ink); }
+  }
+
   .stop-becomes.mono {
     font-family: var(--font-mono);
     font-size: var(--mono-size);
diff --git a/apps/site/src/components/Preflight.astro b/apps/site/src/components/Preflight.astro
index 36a4f3e..85e66db 100644
--- a/apps/site/src/components/Preflight.astro
+++ b/apps/site/src/components/Preflight.astro
@@ -13,7 +13,7 @@ const { c } = Astro.props;
   <div class="full log">
     {
       c.items.map((i, idx) => (
-        <article class="entry glass reveal" style={`--reveal-delay:${idx * 60}ms`}>
+        <article class="entry glass lift reveal" style={`--reveal-delay:${idx * 60}ms`}>
           <p class="caught">
             <span class="tick" aria-hidden="true" />
             {i.caught}
diff --git a/apps/site/src/components/Rules.astro b/apps/site/src/components/Rules.astro
index 6397f74..98f2cf9 100644
--- a/apps/site/src/components/Rules.astro
+++ b/apps/site/src/components/Rules.astro
@@ -13,7 +13,7 @@ const { c } = Astro.props;
   <dl class="full rule-list">
     {
       c.items.map((r, i) => (
-        <div class="rule glass reveal" style={`--reveal-delay:${i * 55}ms`}>
+        <div class="rule glass lift reveal" style={`--reveal-delay:${i * 55}ms`}>
           <dt>{r.rule}</dt>
           <dd class="muted">{r.why}</dd>
         </div>
diff --git a/apps/site/src/components/Showcase.astro b/apps/site/src/components/Showcase.astro
index d989f86..c38ec0a 100644
--- a/apps/site/src/components/Showcase.astro
+++ b/apps/site/src/components/Showcase.astro
@@ -18,7 +18,7 @@ const shots = [shotCoffee, shotSaas];
     {
       c.items.map((item, i) => (
         <figure class:list={["work", "reveal", i === 0 ? "par-slow" : "par-fast"]} style={`--reveal-delay:${i * 90}ms`}>
-          <div class="shell">
+          <div class="shell zoom-in">
             <div class="core">
               <Image src={shots[i]!} alt={item.alt} widths={[480, 860, 1200]}
                      sizes="(max-width: 820px) 92vw, 44vw" loading="lazy" />
diff --git a/apps/site/src/styles/base.css b/apps/site/src/styles/base.css
index d20f20c..4d3b11c 100644
--- a/apps/site/src/styles/base.css
+++ b/apps/site/src/styles/base.css
@@ -271,6 +271,46 @@ a:hover { color: var(--accent); }
   .reveal.is-in { transform: none; }
 }
 
+/* ---- 상호작용 모션 ------------------------------------------
+   모션은 이유가 있어야 붙인다. 여기 있는 것은 전부 피드백이다.
+   "지금 이 카드를 보고 있다", "이 버튼은 눌린다"를 말한다.
+   transform 과 opacity 만 움직인다(하드 게이트 8). */
+@media (prefers-reduced-motion: no-preference) {
+  /* 유리 카드는 커서 아래에서 아주 조금 떠오른다 */
+  .lift {
+    transition:
+      transform var(--dur-quick) var(--ease-out),
+      box-shadow var(--dur-quick) var(--ease-out);
+  }
+  .lift:hover {
+    transform: translate3d(0, -3px, 0);
+    box-shadow: var(--glass-hi), var(--shadow-3);
+  }
+
+  /* 링크 밑줄이 커서 쪽에서 자란다 */
+  .link-grow {
+    position: relative;
+    text-decoration: none;
+  }
+  .link-grow::after {
+    content: "";
+    position: absolute;
+    left: 0;
+    right: 0;
+    bottom: -3px;
+    height: 1px;
+    background: currentColor;
+    transform: scaleX(0);
+    transform-origin: left;
+    transition: transform var(--dur-quick) var(--ease-out);
+  }
+  .link-grow:hover::after { transform: scaleX(1); }
+
+  /* 쇼케이스 판은 들여다보면 조금 다가온다 */
+  .zoom-in { transition: transform var(--dur-normal) var(--ease-out); }
+  .zoom-in:hover { transform: scale(1.012); }
+}
+
 /* ---- 패럴랙스 -----------------------------------------------
    scroll-driven animation 으로만 만든다. scroll 리스너는 쓰지 않는다.
    움직이는 것은 transform 뿐이라 지원되지 않는 브라우저에서는