.pfb-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    z-index: 999998;
    display: none;
    align-items: center;
    justify-content: center;
}

.pfb-overlay.pfb-visible {
    display: flex;
}

.pfb-box {
    position: relative;
    max-width: 90%;
    max-height: 90%;
    background: #fff;
    padding: 10px;
    border-radius: 6px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.pfb-box img {
    display: block;
    max-width: 100%;
    max-height: 80vh;
    border-radius: 4px;
}

.pfb-close {
    position: absolute;
    top: -14px;
    right: -14px;
    width: 32px;
    height: 32px;
    background: #fff;
    border: 2px solid #333;
    border-radius: 50%;
    font-size: 18px;
    line-height: 28px;
    text-align: center;
    cursor: pointer;
    font-weight: bold;
    z-index: 999999;
    user-select: none;
}

.pfb-close:hover {
    background: #333;
    color: #fff;
}