Coachmark

<div class="nuda-stepcoach">
  <span class="nuda-stepcoach__ping"></span>
  <button class="nuda-stepcoach__dot" aria-describedby="stepcoach-tip-1"
          aria-label="New feature"></button>
  <div class="nuda-stepcoach__bubble" role="tooltip" id="stepcoach-tip-1">
    <span class="nuda-stepcoach__label">New</span>
    <span class="nuda-stepcoach__copy">Pin items here to find them fast.</span>
  </div>
</div>

/* Coachmark
   Pulsing onboarding dot with an attached coachmark bubble + arrow.
   Customize: --coach-accent */

.nuda-stepcoach {
  --coach-accent: #e4ff54;
  position: relative;
  display: inline-block;
  padding: 6px;
}

.nuda-stepcoach__dot {
  position: relative;
  display: block;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--coach-accent);
  border: none;
  cursor: pointer;
  z-index: 1;
  box-shadow: 0 0 0 3px rgba(228, 255, 84, 0.18);
}

.nuda-stepcoach__ping {
  position: absolute;
  left: 6px;
  top: 6px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--coach-accent);
  animation: nuda-stepcoach-ping 1.8s ease-out infinite;
}

@keyframes nuda-stepcoach-ping {
  0%   { transform: scale(1);   opacity: 0.55; }
  100% { transform: scale(2.6); opacity: 0; }
}

.nuda-stepcoach__bubble {
  position: absolute;
  left: calc(100% + 12px);
  top: 50%;
  transform: translateY(-50%);
  width: 170px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 10px;
  background: #111114;
  border: 1px solid var(--coach-accent);
  border-radius: 10px;
  box-shadow:
    0 14px 36px -10px rgba(0, 0, 0, 0.6),
    0 0 0 4px rgba(228, 255, 84, 0.08);
  animation: nuda-stepcoach-in 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.nuda-stepcoach__bubble::before {
  content: "";
  position: absolute;
  left: -6px;
  top: 50%;
  transform: translateY(-50%) rotate(45deg);
  width: 10px;
  height: 10px;
  background: #111114;
  border-left: 1px solid var(--coach-accent);
  border-bottom: 1px solid var(--coach-accent);
}

.nuda-stepcoach__label {
  color: #09090b;
  background: var(--coach-accent);
  align-self: flex-start;
  font-size: 0.5rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 1px 6px;
  border-radius: 4px;
}

.nuda-stepcoach__copy {
  color: #fafafa;
  font-size: 0.7rem;
  line-height: 1.4;
}

@keyframes nuda-stepcoach-in {
  from { opacity: 0; transform: translateY(-50%) translateX(-8px); }
  to   { opacity: 1; transform: translateY(-50%) translateX(0); }
}

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