.new-badge {
  position: absolute;
  top: 12px;
  right: -28px;
  width: 120px;
  text-align: center;
  background: #ef4444;                      /* o tu color principal */
  color: white;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  padding: 6px 0;
  transform: rotate(45deg);
  box-shadow: 0 3px 10px rgba(0,0,0,0.25);
  z-index: 10;
}

/* Opcional: sombra interna para mayor profundidad */
.new-badge::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(rgba(255,255,255,0.15), transparent);
  pointer-events: none;
}

@media (max-width: 640px) {
  .new-badge { font-size: 11px; width: 100px; right: -24px; }
}