.sigmoid-chart {
    position: relative;
    width: 100%;
    height: 120px;
    margin: 0 auto 0.4em;
}

.sigmoid-curve {
    position: relative;
    width: 100%;
    height: 100%;
    border-left: 2px solid var(--rlab-color-muted);
    border-bottom: 2px solid var(--rlab-color-muted);
}

.sigmoid-path {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.sigmoid-zone {
    position: absolute;
    bottom: 0;
    font-size: 0.55em;
    font-weight: 600;
    text-align: center;
    padding-top: 0.3em;
}

.sigmoid-zone-fast {
    left: 5%;
    width: 25%;
    height: 85%;
    border-right: 1px dashed var(--rlab-color-faint);
    color: var(--rlab-color-success);
}

.sigmoid-zone-plateau {
    right: 5%;
    width: 30%;
    height: 30%;
    border-left: 1px dashed var(--rlab-color-faint);
    color: var(--rlab-color-danger);
}

.sigmoid-axis-label {
    position: absolute;
    font-size: 0.5em;
    color: var(--rlab-color-muted);
}

.sigmoid-y-label {
    left: -2.5em;
    top: 50%;
    transform: rotate(-90deg) translateX(-50%);
    transform-origin: left center;
    white-space: nowrap;
}

.sigmoid-x-label {
    bottom: -1.5em;
    left: 50%;
    transform: translateX(-50%);
    white-space: nowrap;
}

.sigmoid-y-top {
    left: -1.5em;
    top: 0;
    font-size: 0.5em;
    color: var(--rlab-color-muted);
}

.sigmoid-y-bottom {
    left: -1.5em;
    bottom: 0;
    font-size: 0.5em;
    color: var(--rlab-color-muted);
}