* { margin: 0; padding: 0; box-sizing: border-box; }

body { font-family: Arial, Helvetica, sans-serif; background-color: aliceblue; }

main { padding: 8px 12px; }

.heading {
    font-size: 17px;
    text-align: center;
    color: #444;
    margin-bottom: 6px;
}

.chart-box {
    height: 268px;
    background-color: white;
    border: 1px solid silver;
    border-radius: 6px;
    padding: 6px;
}

.controls {
    margin-top: 8px;
    display: flex;
    align-items: center;
    gap: 22px;
    background-color: white;
    border: 1px solid silver;
    border-radius: 6px;
    padding: 9px 12px;
    font-size: 15px;
    flex-wrap: wrap;
}

.controls label { cursor: pointer; white-space: nowrap; }
.controls .hint { color: #757575; font-size: 13px; }

.infobox {
    margin-top: 8px;
    background-color: white;
    border: 1px solid silver;
    border-radius: 6px;
    padding: 9px 12px;
    font-size: 13px;
    line-height: 1.5;
    min-height: 66px;
}

.infobox .name { font-weight: bold; font-size: 15px; }
.infobox .bottleneck { color: #c62828; font-weight: bold; }
.infobox .minor { color: #2e7d32; font-weight: bold; }