.fpn-popup-overlay {
    position: fixed;
    inset: 0;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    z-index: 999999;
}

.fpn-popup-overlay.is-visible {
    display: flex;
}

.fpn-popup {
    background: #fff;
    width: 100%;
    max-width: 680px;
    max-height: 85vh;
    overflow: auto;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25);
    padding: 24px;
}

.fpn-popup-content {
    font-size: 16px;
    line-height: 1.6;
    color: #222;
}

.fpn-popup-content > *:first-child {
    margin-top: 0;
}

.fpn-popup-content > *:last-child {
    margin-bottom: 0;
}

.fpn-popup-actions {
    display: flex;
    justify-content: center;
    margin-top: 24px;
    padding-top: 16px;
    border-top: 1px solid rgba(0,0,0,0.08);
}

.fpn-popup-close {
    min-width: 140px;
    text-transform: lowercase;
}

@media (max-width: 768px) {
    .fpn-popup-overlay {
        padding: 14px;
        align-items: flex-end;
    }

    .fpn-popup {
        max-width: 100%;
        max-height: 88vh;
        border-radius: 16px 16px 0 0;
        padding: 18px;
    }

    .fpn-popup-content {
        font-size: 15px;
    }

    .fpn-popup-close {
        width: 100%;
    }
}