#rvrChartHOLD {
    width: 400px;
    height: 300px;
    border: 1px solid #ccc;
}

/* Modal styles */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    justify-content: center;
    align-items: center;
}

.modal-content {
    background: white;
    padding: 20px;
    border-radius: 5px;
    position: relative;
    width: 80vw; /* 80% of viewport width */
    height: 80vh; /* 80% of viewport height */
    max-width: 1000px; /* Optional max size */
    max-height: 800px;
}

.close-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: 24px;
    padding: 5px 10px;
    cursor: pointer;
    background: none;
    border: none;
}