hero-v2: boost sweep opacity 2.5x, add glow pulse animation

- Sweep peak: 0.06 → 0.15 (green), 0.025 → 0.04 (white)
- Glow now pulses via CSS @keyframes (opacity 0.7 ↔ 1, scale 1 ↔ 1.05)
- Hover: glow jumps to opacity 1.3 + scale 1.08 + sweep accelerates

hero-v2.html

@@ -70,6 +70,11 @@ body {
     );
     z-index: 1;
     pointer-events: none;
+    animation: glowPulse 4s ease-in-out infinite;
+}
+@keyframes glowPulse {
+    0%, 100% { opacity: 0.7; transform: translate(-50%, -50%) scale(1); }
+    50% { opacity: 1; transform: translate(-50%, -50%) scale(1.05); }
 }
 
 /* Layer 3: Animated gradient sweep */
@@ -78,11 +83,11 @@ body {
     background: linear-gradient(
         90deg,
         transparent 0%,
-        transparent 32%,
-        rgba(255,255,255,0.025) 44%,
-        rgba(34,197,94,0.06) 50%,
-        rgba(255,255,255,0.02) 56%,
-        transparent 68%,
+        transparent 28%,
+        rgba(255,255,255,0.04) 40%,
+        rgba(34,197,94,0.15) 50%,
+        rgba(255,255,255,0.03) 60%,
+        transparent 72%,
         transparent 100%
     );
     background-size: 200% 100%;
@@ -358,8 +363,16 @@ let bgCurrentSpeed = 8;      // lerped toward target
 function accelerateBg(active) {
     bgTargetSpeed = active ? 1.2 : 8;
     const glow = document.querySelector('.hero-glow');
-    glow.style.opacity = active ? '1.15' : '1';
-    glow.style.transition = 'opacity 0.5s cubic-bezier(0.4, 0, 0.2, 1)';
+    if (active) {
+        glow.style.animation = 'none';
+        glow.style.opacity = '1.3';
+        glow.style.transform = 'translate(-50%, -50%) scale(1.08)';
+        glow.style.transition = 'opacity 0.4s ease, transform 0.4s ease';
+    } else {
+        glow.style.opacity = '';
+        glow.style.transform = '';
+        glow.style.animation = '';
+    }
 }
 
 (function bgLoop() {