/* Minimal, keeps your theme intact */
.promo-modal-content{ background:transparent; border:0; box-shadow:none; position:relative; }
.promo-img{ display:block; width:100%; height:auto; border-radius:.75rem; }
.promo-close{ position:absolute; top:-12px; right:-12px; z-index:2; color:#fff; text-shadow:0 1px 2px rgba(0,0,0,.6); opacity:1; }
.promo-close:hover{ opacity:.85; }
@media (max-width:576px){
  #promoModal .modal-dialog{ max-width:95%; margin:auto; }
}

/* Optional: darker backdrop for pop */
.modal-backdrop.show{ opacity:.6; }

/* Hide image if it fails to load (prevents blank big box) */
.promo-img:not([src]), .promo-img[src=""]{ display:none; }