feat: flicker effect only on "Nth" letters, remove from tagline

- neon-flicker animation now targets only the first 3 letters (N,t,h)
  via .lava-text:first-child > .lava-letter:nth-child(-n+3)
- Wider flicker windows (17-27% and 52-56%) with deeper dip (0.65)
  for more noticeable effect
- Removed flicker animation from hero-tagline subtitle

Generated with [Claude Code](https://claude.ai/code)
via [Happy](https://happy.engineering)

Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: Happy <yesreply@happy.engineering>

Author: 3 people

docs/projects/nthpartyfinder/index.html

@@ -316,11 +316,11 @@
   100% { background-position: 100% 50%; }
 }
 @keyframes neon-flicker {
-  0%, 19%, 21%, 23%, 25%, 54%, 56%, 100% {
+  0%, 17%, 21%, 23%, 27%, 52%, 56%, 100% {
     opacity: 1;
   }
-  20%, 24%, 55% {
-    opacity: 0.82;
+  18%, 22%, 24%, 53%, 55% {
+    opacity: 0.65;
   }
 }
 .lava-text { display: inline; }
@@ -332,6 +332,10 @@
   -webkit-background-clip: text;
   background-clip: text;
   -webkit-text-fill-color: transparent;
+  animation: lava-flow 8s ease-in-out infinite;
+  animation-delay: calc(var(--i) * -0.6s);
+}
+.hero-title > .lava-text:first-child > .lava-letter:nth-child(-n+3) {
   animation: lava-flow 8s ease-in-out infinite, neon-flicker 4s infinite;
   animation-delay: calc(var(--i) * -0.6s), 0s;
 }
@@ -364,7 +368,6 @@
   0%,19%,21%,23%,25%,54%,56%,100% { opacity:1; }
   20%,24%,55% { opacity:.5; }
 }
-.hero-tagline { animation: flicker 4s infinite; }
 
 .hero-desc {
   font-size: 1.1rem;