Chat Bubble

<!-- Chat Bubble — user (right, accent) + AI (left, with avatar) -->
<div class="nuda-chat">
  <div class="nuda-chat__msg nuda-chat__msg--user">Make this faster</div>
  <div class="nuda-chat__msg nuda-chat__msg--ai">
    <span class="nuda-chat__avatar">AI</span>
    <div class="nuda-chat__bubble">Memoize the hot path.</div>
  </div>
</div>

/* Chat Bubble
   User vs AI message bubbles with staggered fade-in entry.
   Customize: --chat-user-bg, --chat-ai-bg, --chat-radius */

.nuda-chat {
  --chat-user-bg: #e4ff54;
  --chat-ai-bg: rgba(255, 255, 255, 0.04);
  --chat-radius: 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
  max-width: 320px;
}

.nuda-chat__msg {
  display: flex;
  animation: nuda-chat-in 0.5s cubic-bezier(0.4, 0, 0.2, 1) backwards;
}

.nuda-chat__msg--user {
  align-self: flex-end;
  padding: 8px 14px;
  background: var(--chat-user-bg);
  color: #09090b;
  border-radius: var(--chat-radius) var(--chat-radius) 4px var(--chat-radius);
  font: 600 0.875rem ui-sans-serif, system-ui, sans-serif;
  max-width: 80%;
}

.nuda-chat__msg--ai {
  align-items: flex-end;
  gap: 8px;
  animation-delay: 0.4s;
}

.nuda-chat__avatar {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(228, 255, 84, 0.15);
  border: 1px solid rgba(228, 255, 84, 0.3);
  color: var(--chat-user-bg);
  font: 800 0.55rem ui-sans-serif, system-ui, sans-serif;
  border-radius: 50%;
}

.nuda-chat__bubble {
  padding: 8px 14px;
  background: var(--chat-ai-bg);
  border: 1px solid rgba(255, 255, 255, 0.06);
  color: #fafafa;
  border-radius: var(--chat-radius) var(--chat-radius) var(--chat-radius) 4px;
  font: 500 0.875rem ui-sans-serif, system-ui, sans-serif;
  max-width: 80%;
}

@keyframes nuda-chat-in {
  from { opacity: 0; transform: translateY(8px) scale(0.96); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

@media (prefers-reduced-motion: reduce) {
  .nuda-chat__msg { animation: none; }
}