#popupper-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

#popupper-content {
    background: white;
    padding: 1em;
    border-radius: 8px;
    position: relative;
    max-width: 650px;
    width: 90%;
}

#popupper-content p {
    margin-top: 8px;
    margin-bottom: 8px;
}

#popupper-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #eee;
    padding-bottom: 10px;
    margin-bottom: 10px;
}

#popupper-header h3 {
    margin: 0 !important;
    font-weight: bold;
}

#popupper-close {
    font-size: 26px;
    cursor: pointer;
    color: #333;
}

#popupper-date-range {
    font-size: 0.9em;
    color: #777;
    margin-bottom: 8px;
}