User Card Upward Menu

<div class="nuda-sb2-user-menu is-open">
  <div class="nuda-sb2-user-menu__panel" role="menu">
    <button type="button" class="nuda-sb2-user-menu__menuitem" role="menuitem">Profile</button>
    <button type="button" class="nuda-sb2-user-menu__menuitem" role="menuitem">Billing</button>
    <button type="button" class="nuda-sb2-user-menu__menuitem" role="menuitem">Sign out</button>
  </div>
  <button type="button" class="nuda-sb2-user-menu__trigger" aria-haspopup="menu" aria-expanded="true">
    <span class="nuda-sb2-user-menu__avatar" aria-hidden="true">SG</span>
    <span class="nuda-sb2-user-menu__name">Santiago</span>
    <svg class="nuda-sb2-user-menu__chev" viewBox="0 0 24 24" fill="none" stroke="currentColor"
         stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true">
      <path d="M6 9l6 6 6-6" />
    </svg>
  </button>
</div>

const wrap = document.querySelector('.nuda-sb2-user-menu');
const trigger = wrap.querySelector('.nuda-sb2-user-menu__trigger');

trigger.addEventListener('click', () => {
  const open = wrap.classList.toggle('is-open');
  trigger.setAttribute('aria-expanded', String(open));
});

document.addEventListener('keydown', (e) => {
  if (e.key === 'Escape' && wrap.classList.contains('is-open')) {
    wrap.classList.remove('is-open');
    trigger.setAttribute('aria-expanded', 'false');
    trigger.focus();
  }
});

.nuda-sb2-user-menu {
  position: relative;
  width: 200px;
}

.nuda-sb2-user-menu__trigger {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 8px 10px;
  min-height: 44px;
  background: rgba(255,255,255,.03);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 12px;
  color: #fafafa;
  cursor: pointer;
  transition: background .2s;
}

.nuda-sb2-user-menu__trigger:hover {
  background: rgba(255,255,255,.06);
}

.nuda-sb2-user-menu__trigger:focus-visible {
  outline: 2px solid #e4ff54;
  outline-offset: 2px;
}

.nuda-sb2-user-menu__avatar {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: linear-gradient(135deg,#e4ff54,#6ee7b7);
  color: #0a0a0a;
  font-size: 10px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.nuda-sb2-user-menu__name {
  flex: 1;
  text-align: left;
  font-size: 12px;
  font-weight: 600;
}

.nuda-sb2-user-menu__chev {
  width: 14px;
  height: 14px;
  color: #777;
  transition: transform .3s cubic-bezier(.16,1,.3,1);
}

.nuda-sb2-user-menu.is-open .nuda-sb2-user-menu__chev {
  transform: rotate(180deg);
}

.nuda-sb2-user-menu__panel {
  position: absolute;
  left: 0;
  right: 0;
  bottom: calc(100% + 8px);
  padding: 6px;
  background: #161616;
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 12px;
  box-shadow: 0 12px 28px -10px rgba(0,0,0,.6);
  transform-origin: bottom center;
  transform: translateY(6px) scale(.94);
  opacity: 0;
  pointer-events: none;
  transition: transform .3s cubic-bezier(.16,1,.3,1),opacity .25s;
}

.nuda-sb2-user-menu.is-open .nuda-sb2-user-menu__panel {
  transform: translateY(0) scale(1);
  opacity: 1;
  pointer-events: auto;
}

.nuda-sb2-user-menu__menuitem {
  display: block;
  width: 100%;
  padding: 8px 10px;
  min-height: 36px;
  background: transparent;
  border: 0;
  color: #a0a0a8;
  font-size: 12px;
  text-align: left;
  border-radius: 8px;
  cursor: pointer;
  transition: background .2s,color .2s;
}

.nuda-sb2-user-menu__menuitem:hover {
  background: rgba(228,255,84,.08);
  color: #e4ff54;
}

.nuda-sb2-user-menu__menuitem:focus-visible {
  outline: 2px solid #e4ff54;
  outline-offset: 2px;
}

@media (prefers-reduced-motion:reduce) {
  .nuda-sb2-user-menu__panel,.nuda-sb2-user-menu__chev {
    transition: none;
  }
}