/* Front – modern & gentle */
.bunsm-menu{
  --bunsm-item-h: 54px;
  --bunsm-r: 14px;
  --bunsm-border: rgba(17,24,39,.10);
  --bunsm-text: #111827;
  --bunsm-muted: rgba(17,24,39,.55);
  --bunsm-bg: rgba(255,255,255,.92);
  --bunsm-glow: rgba(59,130,246,.14);

  display:flex;
  flex-direction:column;
  gap:10px;
  padding:8px;
  border-radius: calc(var(--bunsm-r) + 4px);
  background: linear-gradient(180deg, rgba(255,255,255,.85), rgba(255,255,255,.72));
  border:1px solid var(--bunsm-border);
  box-shadow: 0 12px 30px rgba(17,24,39,.08);
  backdrop-filter: blur(10px);
}

.bunsm-item{
  position:relative;
  height: var(--bunsm-item-h);
  display:flex;
  align-items:center;
  gap:10px;
  padding: 0 14px;
  border-radius: var(--bunsm-r);
  background: var(--bunsm-bg);
  border:1px solid rgba(17,24,39,.08);
  text-decoration:none !important;
  color: var(--bunsm-text);
  overflow:hidden;

  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease, background .18s ease;
  will-change: transform;
}

/* left accent bar */
.bunsm-item::before{
  content:"";
  position:absolute;
  left:0; top:0; bottom:0;
  width:0;
  background: linear-gradient(180deg, rgba(59,130,246,.85), rgba(99,102,241,.85));
  transition: width .22s ease;
  opacity:.95;
}

/* subtle shimmer */
.bunsm-item::after{
  content:"";
  position:absolute;
  inset:0;
  background: radial-gradient(120px 60px at 0% 50%, rgba(59,130,246,.10), transparent 60%);
  opacity:0;
  transition: opacity .22s ease, transform .28s ease;
  transform: translateX(-12px);
  pointer-events:none;
}

.bunsm-title{
  min-width:0;
  flex:1;
  font-weight:600;
  letter-spacing:.1px;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
  line-height: 1;
}

.bunsm-arrow{
  flex:0 0 auto;
  font-size:22px;
  color: var(--bunsm-muted);
  transform: translateX(0);
  transition: transform .18s ease, color .18s ease;
}

.bunsm-item:hover,
.bunsm-item:focus-visible{
  transform: translateX(4px);
  border-color: rgba(59,130,246,.30);
  box-shadow: 0 16px 34px rgba(17,24,39,.10), 0 0 0 6px var(--bunsm-glow);
  outline: none;
}

.bunsm-item:hover::before,
.bunsm-item:focus-visible::before{
  width:4px;
}

.bunsm-item:hover::after,
.bunsm-item:focus-visible::after{
  opacity:1;
  transform: translateX(0);
}

.bunsm-item:hover .bunsm-arrow,
.bunsm-item:focus-visible .bunsm-arrow{
  color: rgba(59,130,246,.95);
  transform: translateX(2px);
}

.bunsm-item.is-pressed{
  transform: translateX(2px) scale(.985);
}

/* Mobile: slightly tighter */
@media (max-width: 480px){
  .bunsm-menu{gap:8px;padding:6px;border-radius:14px}
  .bunsm-item{padding:0 12px}
  .bunsm-title{font-size:14px}
}