.sponsor-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.6);display:flex;justify-content:center;align-items:center;z-index:9999;opacity:0;visibility:hidden;transition:opacity .3s,visibility .3s}.sponsor-overlay.active{opacity:1;visibility:visible}.sponsor-popup{position:relative;background:#fff;border-radius:12px;padding:8px;box-shadow:0 20px 60px rgba(0,0,0,.3);max-width:min(90vw,480px);max-height:90vh;animation:.3s ease-out sponsorFadeIn}.sponsor-close{position:absolute;top:-14px;right:-14px;width:32px;height:32px;border:none;border-radius:50%;background:#ef4444;color:#fff;font-size:18px;font-weight:700;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 8px rgba(0,0,0,.3);transition:transform .2s,background .2s;line-height:1;z-index:10}.sponsor-close:hover{background:#dc2626;transform:scale(1.1)}.sponsor-popup img{display:block;width:100%;max-width:100%;height:auto;border-radius:8px}@keyframes sponsorFadeIn{from{opacity:0;transform:scale(.9)}to{opacity:1;transform:scale(1)}}@media (max-width:640px){.sponsor-popup{max-width:min(92vw,360px);padding:6px}.sponsor-close{top:-10px;right:-10px;width:28px;height:28px;font-size:16px}}@media (max-width:420px){.sponsor-popup{max-width:min(94vw,300px);padding:5px}.sponsor-close{top:-8px;right:-8px;width:26px;height:26px;font-size:14px}}