/* CSS for modern styling */
body {
    font-family: "Roboto", sans-serif;
    background-color: #f0f0f0;
}

#chart {
    margin: 20px;
    width: 100%;
}

.axis path,
.axis line {
    fill: none;
    stroke: #888;
    shape-rendering: crispEdges;
}

.axis text {
    font-size: 12px;
    fill: #555;
}

.line {
    fill: none;
    stroke: blue;
    stroke-width: 2;
}

.label {
    font-size: 12px;
    fill: blue;
    text-anchor: middle;
    display: none; /* Hide the labels by default */
}

.tooltip {
    position: absolute;
    background-color: #f9f9f9;
    border: 1px solid #ccc;
    padding: 6px;
    font-size: 12px;
    pointer-events: none; /* Prevent tooltip from blocking mouse interactions */
    display: none; /* Hide the tooltip by default */
}

.btn {
    margin-left: 20px !important;
}