Model Selector

<!-- Model Selector — pulsing online dot, name, plan badge -->
<button class="nuda-model" type="button">
  <span class="nuda-model__dot"></span>
  <span class="nuda-model__name">Claude Opus 4.7</span>
  <span class="nuda-model__badge">Pro</span>
  <svg class="nuda-model__chev" viewBox="0 0 12 12" fill="none"
       stroke="currentColor" stroke-width="2"
       stroke-linecap="round" stroke-linejoin="round">
    <path d="M3 4.5 L6 7.5 L9 4.5" />
  </svg>
</button>

/* Model Selector
   Pill button with status dot, model name, plan badge, chevron flip on hover.
   Customize: --model-accent */

.nuda-model {
  --model-accent: #e4ff54;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px 6px 12px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  color: #fafafa;
  font: 600 0.875rem ui-sans-serif, system-ui, sans-serif;
  cursor: pointer;
  transition: border-color 0.25s, background 0.25s;
}

.nuda-model:hover {
  border-color: rgba(228, 255, 84, 0.3);
  background: rgba(255, 255, 255, 0.06);
}

.nuda-model__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--model-accent);
  box-shadow: 0 0 6px var(--model-accent);
  animation: nuda-model-pulse 2s ease-in-out infinite;
}

.nuda-model__badge {
  font: 700 0.55rem ui-sans-serif, system-ui, sans-serif;
  color: #09090b;
  background: var(--model-accent);
  padding: 2px 6px;
  border-radius: 4px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.nuda-model__chev {
  width: 12px;
  height: 12px;
  color: #a1a1aa;
  transition: transform 0.25s;
}

.nuda-model:hover .nuda-model__chev { transform: rotate(180deg); }

@keyframes nuda-model-pulse {
  0%, 100% { opacity: 0.7; }
  50%      { opacity: 1; }
}

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