#promo-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

#promo-overlay.visible {
    opacity: 1;
    pointer-events: auto;
}

#promo-close {
    position: absolute;
    top: -18px;
    right: -18px;
    z-index: 100000;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: #1a1a1a;
    border: 2px solid rgba(255, 255, 255, 0.25);
    color: #fff;
    font-size: 22px;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
    transition: background 0.15s, transform 0.15s;
}

#promo-close:hover {
    background: #e84040;
    transform: scale(1.1);
}