.currency-dropdown{
  position:relative;
  display:inline-block;
  min-width: 240px;
  z-index: 10;
}
.currency-toggle{
  width:100%;
  background: rgba(0,0,0,0.55);
  color:#fff;
  border:1px solid rgba(255,255,255,0.10);
  padding:10px 12px;
  border-radius:10px;
  font-weight:600;
  cursor:pointer;
  transition: box-shadow .18s ease, transform .18s ease, border-color .18s ease;
}
.currency-toggle:hover,
.currency-toggle:focus-visible{
  box-shadow: 0 10px 28px rgba(0,0,0,0.4);
  border-color: rgba(255,255,255,0.18);
  outline: none;
}
.currency-menu{
  position:absolute;
  left:0; right:0;
  top: calc(100% + 8px);
  margin:0; padding:6px;
  list-style:none;
  background: rgba(0,0,0,0.75);
  backdrop-filter: blur(8px);
  border:1px solid rgba(255,255,255,0.10);
  border-radius:12px;
  box-shadow: 0 16px 40px rgba(0,0,0,0.55);
  transform-origin: top center;
  transform: translateY(-6px) scale(0.98);
  opacity: 0;
  pointer-events: none;
  transition: opacity .18s ease, transform .18s ease;
  max-height: 280px;
  overflow: auto;
  z-index: 20;
}
.currency-dropdown.open .currency-menu{
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}
.currency-item{
  padding:10px 10px;
  border-radius:8px;
  color:#fff;
  font-size:14px;
  cursor:pointer;
  transition: background .14s ease, transform .12s ease;
}
.currency-item:hover{
  background: rgba(255,255,255,0.06);
  transform: translateX(2px);
}
.currency-item.selected{
  background: rgba(255,255,255,0.10);
  font-weight:700;
  border:1px solid rgba(255,255,255,0.06);
}
@media (max-width:560px){
  .currency-dropdown{ min-width: 100%; }
  .currency-toggle{ font-size:15px; padding:12px 14px; }
}