:is(
    [data-unit-visual-extension="door_moment_explorer"],
    [data-unit-visual-extension="plumb_line_settle_timeline"],
    [data-unit-visual-extension="moment_geometry_lab"],
    [data-unit-visual-extension="beam_balance_timeline"],
    [data-unit-visual-extension="couple_rotation_timeline"],
    [data-unit-visual-extension="equilibrium_conditions_lab"],
    [data-unit-visual-extension="force_triangle_build_timeline"],
    [data-unit-visual-extension="density_comparison_lab"],
    [data-unit-visual-extension="pressure_contact_lab"],
    [data-unit-visual-extension="hydrostatic_slice_lab"],
    [data-unit-visual-extension="upthrust_submerge_timeline"],
    [data-unit-visual-extension="archimedes_displacement_timeline"]
) {
    --ch04-ink: #173b45;
    --ch04-muted: #657a80;
    --ch04-line: #8fa5aa;
    --ch04-surface: #f3f8f7;
    --ch04-primary: #167a78;
    --ch04-force: #bd4d43;
    --ch04-moment: #ad762b;
    --ch04-pressure: #6659a8;
    --ch04-upthrust: #167f78;
    --ch04-weight: #4f6570;
    --ch04-support: #2f7b5b;
    --ch04-component: #2c6fa1;
    --ch04-result: #286d52;
    --ch04-sample-a: #2f7892;
    --ch04-sample-b: #ad6638;
    width: 100%;
    min-width: 0;
    margin: clamp(1rem, 2.4vw, 1.65rem) 0;
    padding: clamp(.9rem, 2.2vw, 1.3rem);
    overflow: clip;
    border: 1px solid color-mix(in srgb, var(--ch04-primary) 18%, transparent);
    border-radius: 1.15rem;
    background:
        radial-gradient(circle at 12% 8%, rgb(22 122 120 / .055), transparent 35%),
        linear-gradient(145deg, #fff 0%, var(--ch04-surface) 100%);
    box-shadow: 0 .78rem 2rem rgb(23 59 69 / .06);
    color: var(--ch04-ink);
    box-sizing: border-box;
}

.ch04-visual[data-unit-visual-extension] *,
.ch04-visual[data-unit-visual-extension] *::before,
.ch04-visual[data-unit-visual-extension] *::after {
    box-sizing: border-box;
}

.ch04-visual[data-unit-visual-extension] [hidden] {
    display: none !important;
}

.ch04-visual[data-unit-visual-extension] .ch04-visual-heading {
    display: grid;
    gap: .2rem;
    margin-bottom: .72rem;
}

.ch04-visual[data-unit-visual-extension] .ch04-visual-heading h3 {
    margin: 0;
    color: var(--ch04-ink);
    font-size: var(--unit-text-heading-medium, 17px);
    font-weight: 780;
    line-height: 1.22;
    letter-spacing: -.015em;
}

.ch04-visual[data-unit-visual-extension] :is(.ch04-visual-kicker, .ch04-visual-intro) {
    margin: 0;
}

.ch04-visual[data-unit-visual-extension] .ch04-visual-kicker {
    color: var(--ch04-primary);
    font-size: var(--unit-text-micro, 11px);
    font-weight: 820;
    line-height: 1.2;
    letter-spacing: .075em;
    text-transform: uppercase;
}

.ch04-visual[data-unit-visual-extension] .ch04-visual-intro {
    max-width: 78ch;
    color: var(--ch04-muted);
    font-size: var(--unit-text-meta, 12px);
    line-height: 1.5;
}

.ch04-visual[data-unit-visual-extension] :is(.ch04-state-controls, .ch04-timeline) {
    width: 100%;
    min-width: 0;
}

.ch04-visual[data-unit-visual-extension] .ch04-state-controls {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(7rem, 100%), 1fr));
    gap: .42rem;
    margin: 0 0 .62rem;
}

.ch04-visual[data-unit-visual-extension] :is(.ch04-state-button, .ch04-timeline-button) {
    min-width: 0;
    min-height: 38px;
    padding: .43rem .62rem;
    overflow: hidden;
    border: 1px solid color-mix(in srgb, var(--ch04-line) 68%, transparent);
    border-radius: .66rem;
    background: rgb(255 255 255 / .97);
    color: var(--ch04-ink);
    font: inherit;
    font-size: var(--unit-text-meta, 12px);
    font-weight: 750;
    line-height: 1.15;
    text-overflow: ellipsis;
    white-space: nowrap;
    cursor: pointer;
}

.ch04-visual[data-unit-visual-extension] :is(.ch04-state-button, .ch04-timeline-button):hover {
    border-color: var(--ch04-primary);
}

.ch04-visual[data-unit-visual-extension] :is(.ch04-state-button, .ch04-timeline-button):focus-visible {
    outline: 3px solid color-mix(in srgb, var(--ch04-primary) 25%, transparent);
    outline-offset: 2px;
}

.ch04-visual[data-unit-visual-extension] .ch04-state-button[aria-pressed="true"] {
    border-color: var(--ch04-primary);
    background: var(--ch04-primary);
    box-shadow: 0 .28rem .78rem rgb(22 122 120 / .18);
    color: #fff;
}

.ch04-visual[data-unit-visual-extension] .ch04-timeline {
    display: grid;
    grid-template-columns: auto auto minmax(5rem, 1fr) minmax(7.5rem, auto);
    align-items: center;
    gap: .48rem;
    margin: 0 0 .7rem;
}

.ch04-visual[data-unit-visual-extension] .ch04-timeline-button[aria-pressed="true"] {
    border-color: var(--ch04-primary);
    background: color-mix(in srgb, var(--ch04-primary) 9%, #fff);
    color: var(--ch04-primary);
}

.ch04-visual[data-unit-visual-extension] .ch04-timeline-button:disabled {
    cursor: not-allowed;
    opacity: .46;
}

.ch04-visual[data-unit-visual-extension] .ch04-timeline-scrub {
    width: 100%;
    min-width: 0;
    margin: 0;
    accent-color: var(--ch04-primary);
}

.ch04-visual[data-unit-visual-extension] .ch04-timeline-phase {
    min-width: 0;
    color: var(--ch04-muted);
    font-size: var(--unit-text-meta, 12px);
    font-variant-numeric: tabular-nums;
    font-weight: 720;
    line-height: 1.2;
    text-align: right;
    white-space: nowrap;
}

.ch04-visual[data-unit-visual-extension] .ch04-visual-drawing {
    position: relative;
    width: 100%;
    min-width: 0;
    overflow: hidden;
    border: 1px solid color-mix(in srgb, var(--ch04-line) 40%, transparent);
    border-radius: .88rem;
    background:
        linear-gradient(rgb(143 165 170 / .045) 1px, transparent 1px),
        linear-gradient(90deg, rgb(143 165 170 / .045) 1px, transparent 1px),
        #fff;
    background-size: 36px 36px;
}

.ch04-visual[data-unit-visual-extension] .ch04-visual-drawing svg {
    display: block;
    width: 100%;
    height: 100%;
    overflow: visible;
}

.ch04-visual[data-unit-visual-extension] :is(.ch04-math-label, .ch04-text-label) {
    position: absolute;
    z-index: 2;
    max-width: 48%;
    padding: .14rem .3rem;
    border-radius: .34rem;
    background: rgb(255 255 255 / .92);
    color: var(--ch04-ink);
    font-size: clamp(.82rem, 1.82vw, 1rem);
    font-weight: 700;
    line-height: 1.14;
    pointer-events: none;
    transform: translate(-50%, -50%);
    white-space: nowrap;
}

.ch04-visual[data-unit-visual-extension] .ch04-text-label {
    font-size: clamp(.8rem, 1.7vw, .95rem);
}

.ch04-visual[data-unit-visual-extension] :is(.ch04-math-label, .ch04-text-label)[data-label-anchor="start"] {
    transform: translate(0, -50%);
}

.ch04-visual[data-unit-visual-extension] :is(.ch04-math-label, .ch04-text-label)[data-label-anchor="end"] {
    transform: translate(-100%, -50%);
}

.ch04-visual[data-unit-visual-extension] .ch04-math-label mjx-container {
    margin: 0 !important;
}

.ch04-visual[data-unit-visual-extension] :is(.ch04-math-label, .ch04-text-label).is-muted {
    color: var(--ch04-muted);
    font-weight: 620;
}

.ch04-visual[data-unit-visual-extension] :is(.ch04-math-label, .ch04-text-label).is-force {
    color: var(--ch04-force);
}

.ch04-visual[data-unit-visual-extension] :is(.ch04-math-label, .ch04-text-label).is-pressure {
    color: var(--ch04-pressure);
}

.ch04-visual[data-unit-visual-extension] :is(.ch04-math-label, .ch04-text-label).is-upthrust {
    color: var(--ch04-upthrust);
}

.ch04-visual[data-unit-visual-extension] :is(.ch04-math-label, .ch04-text-label).is-weight {
    color: var(--ch04-weight);
}

.ch04-visual[data-unit-visual-extension] :is(.ch04-math-label, .ch04-text-label).is-support {
    color: var(--ch04-support);
}

.ch04-visual[data-unit-visual-extension] :is(.ch04-math-label, .ch04-text-label).is-component {
    color: var(--ch04-component);
}

.ch04-visual[data-unit-visual-extension] :is(.ch04-math-label, .ch04-text-label).is-distance {
    color: #4e6570;
}

.ch04-visual[data-unit-visual-extension] :is(.ch04-math-label, .ch04-text-label).is-result {
    width: max-content;
    max-width: 90%;
    color: var(--ch04-result);
    font-weight: 790;
    text-align: center;
    white-space: normal;
}

.ch04-visual[data-unit-visual-extension] :is(.ch04-math-label, .ch04-text-label).is-result.is-warning {
    color: #9a5c28;
}

.ch04-visual[data-unit-visual-extension] :is(.ch04-math-label, .ch04-text-label).is-result.is-secondary {
    color: var(--ch04-muted);
    font-size: clamp(.72rem, 1.55vw, .88rem);
}

.ch04-visual[data-unit-visual-extension] .is-panel-title {
    color: var(--ch04-primary);
    font-size: clamp(.72rem, 1.5vw, .84rem);
    font-weight: 840;
    letter-spacing: .055em;
}

.ch04-visual[data-unit-visual-extension] .is-point-label {
    color: var(--ch04-ink);
    font-weight: 840;
}

.ch04-visual[data-unit-visual-extension] .is-centre-label {
    color: var(--ch04-primary);
    font-weight: 790;
}

.ch04-visual[data-unit-visual-extension] .is-consequence {
    width: max-content;
    max-width: 86%;
    color: var(--ch04-muted);
    font-weight: 720;
    text-align: center;
    white-space: normal;
}

.ch04-visual[data-unit-visual-extension] .is-sample-a {
    color: var(--ch04-sample-a);
}

.ch04-visual[data-unit-visual-extension] .is-sample-b {
    color: var(--ch04-sample-b);
}

.ch04-visual[data-unit-visual-extension] .is-volume {
    color: #fff;
    background: rgb(23 59 69 / .72);
}

.ch04-visual[data-unit-visual-extension] .is-vertical-note {
    max-width: 12rem;
    transform: translate(-50%, -50%) rotate(-90deg);
}

.ch04-visual[data-unit-visual-extension] .ch04-state-summary {
    display: grid;
    grid-template-columns: minmax(8.5rem, .72fr) minmax(0, 1.15fr) minmax(0, 1fr);
    align-items: start;
    gap: .58rem;
    margin-top: .68rem;
    padding: .72rem .78rem;
    border: 1px solid color-mix(in srgb, var(--ch04-primary) 16%, transparent);
    border-radius: .78rem;
    background: rgb(255 255 255 / .82);
}

.ch04-visual[data-unit-visual-extension] .ch04-state-summary :is(strong, p) {
    min-width: 0;
    margin: 0;
}

.ch04-visual[data-unit-visual-extension] .ch04-state-title {
    color: var(--ch04-primary);
    font-size: var(--unit-text-meta, 12px);
    line-height: 1.34;
}

.ch04-visual[data-unit-visual-extension] :is(.ch04-state-text, .ch04-state-result) {
    color: var(--ch04-muted);
    font-size: var(--unit-text-meta, 12px);
    line-height: 1.42;
}

.ch04-visual[data-unit-visual-extension] .ch04-state-result {
    color: var(--ch04-result);
    font-weight: 720;
}

.ch04-visual[data-unit-visual-extension] .ch04-state-result mjx-container {
    margin: 0 !important;
}

.ch04-visual[data-unit-visual-extension] .ch04-panel {
    fill: rgb(243 248 247 / .84);
    stroke: color-mix(in srgb, var(--ch04-line) 58%, transparent);
    stroke-width: 1.2;
}

.ch04-visual[data-unit-visual-extension] .ch04-vector {
    fill: none;
    stroke-width: 2.35;
    stroke-linecap: round;
    stroke-linejoin: round;
    vector-effect: non-scaling-stroke;
}

.ch04-visual[data-unit-visual-extension] .ch04-vector.is-force {
    stroke: var(--ch04-force);
}

.ch04-visual[data-unit-visual-extension] .ch04-vector.is-moment,
.ch04-visual[data-unit-visual-extension] .ch04-moment-arc {
    stroke: var(--ch04-moment);
}

.ch04-visual[data-unit-visual-extension] .ch04-vector.is-pressure {
    stroke: var(--ch04-pressure);
}

.ch04-visual[data-unit-visual-extension] .ch04-vector.is-upthrust {
    stroke: var(--ch04-upthrust);
}

.ch04-visual[data-unit-visual-extension] .ch04-vector.is-weight {
    stroke: var(--ch04-weight);
}

.ch04-visual[data-unit-visual-extension] .ch04-vector.is-support {
    stroke: var(--ch04-support);
}

.ch04-visual[data-unit-visual-extension] .ch04-vector.is-component {
    stroke: var(--ch04-component);
}

.ch04-visual[data-unit-visual-extension] .ch04-vector.is-resultant {
    stroke: #9b5a2c;
}

.ch04-visual[data-unit-visual-extension] .ch04-vector.is-vector-sum {
    stroke-dasharray: 6 5;
}

.ch04-visual[data-unit-visual-extension] .ch04-arrowhead {
    fill: none;
    stroke-width: 1.65;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.ch04-visual[data-unit-visual-extension] .ch04-arrowhead.is-force {
    stroke: var(--ch04-force);
}

.ch04-visual[data-unit-visual-extension] .ch04-arrowhead.is-moment {
    stroke: var(--ch04-moment);
}

.ch04-visual[data-unit-visual-extension] .ch04-arrowhead.is-pressure {
    stroke: var(--ch04-pressure);
}

.ch04-visual[data-unit-visual-extension] .ch04-arrowhead.is-upthrust {
    stroke: var(--ch04-upthrust);
}

.ch04-visual[data-unit-visual-extension] .ch04-arrowhead.is-weight {
    stroke: var(--ch04-weight);
}

.ch04-visual[data-unit-visual-extension] .ch04-arrowhead.is-support {
    stroke: var(--ch04-support);
}

.ch04-visual[data-unit-visual-extension] .ch04-arrowhead.is-component {
    stroke: var(--ch04-component);
}

.ch04-visual[data-unit-visual-extension] .ch04-arrowhead.is-resultant {
    stroke: #9b5a2c;
}

.ch04-visual[data-unit-visual-extension] :is(
    .ch04-construction,
    .ch04-marked-line
) {
    fill: none;
    stroke: color-mix(in srgb, var(--ch04-line) 68%, transparent);
    stroke-width: 1.05;
    stroke-dasharray: 6 6;
    vector-effect: non-scaling-stroke;
}

.ch04-visual[data-unit-visual-extension] :is(
    .ch04-distance-line,
    .ch04-dimension-line,
    .ch04-dimension-tick
) {
    fill: none;
    stroke: var(--ch04-line);
    stroke-width: 1.15;
    vector-effect: non-scaling-stroke;
}

.ch04-visual[data-unit-visual-extension] .ch04-dimension-line {
    stroke-dasharray: 3 4;
}

.ch04-visual[data-unit-visual-extension] .ch04-right-angle {
    fill: none;
    stroke: var(--ch04-line);
    stroke-width: 1.2;
    vector-effect: non-scaling-stroke;
}

.ch04-visual[data-unit-visual-extension] :is(
    .ch04-semantic-point,
    .ch04-application-point
) {
    fill: var(--ch04-ink);
    stroke: #fff;
    stroke-width: 1.3;
    vector-effect: non-scaling-stroke;
}

.ch04-visual[data-unit-visual-extension] .ch04-application-point {
    fill: var(--ch04-force);
}

.ch04-visual[data-unit-visual-extension] .ch04-moment-arc {
    fill: none;
    stroke-width: 2.25;
    stroke-linecap: round;
    vector-effect: non-scaling-stroke;
}

.ch04-visual[data-unit-visual-extension] .ch04-door {
    fill: #dcebe8;
    stroke: var(--ch04-primary);
    stroke-width: 1.4;
    vector-effect: non-scaling-stroke;
}

.ch04-visual[data-unit-visual-extension] .ch04-hinge-line {
    stroke: var(--ch04-ink);
    stroke-width: 3;
    vector-effect: non-scaling-stroke;
}

.ch04-visual[data-unit-visual-extension] .ch04-lamina-shape {
    fill: #e8efdd;
    stroke: #61744c;
    stroke-width: 1.5;
    vector-effect: non-scaling-stroke;
}

.ch04-visual[data-unit-visual-extension] .ch04-lamina-hole {
    fill: #fff;
    stroke: #61744c;
    stroke-width: 1.5;
    vector-effect: non-scaling-stroke;
}

.ch04-visual[data-unit-visual-extension] .ch04-marked-line.is-a {
    stroke: #2f7892;
}

.ch04-visual[data-unit-visual-extension] .ch04-marked-line.is-b {
    stroke: #ad6638;
}

.ch04-visual[data-unit-visual-extension] .ch04-plumb-cord {
    stroke: var(--ch04-ink);
    stroke-width: 1.35;
    vector-effect: non-scaling-stroke;
}

.ch04-visual[data-unit-visual-extension] .ch04-plumb-bob {
    fill: #526970;
    stroke: #fff;
    stroke-width: 1;
    vector-effect: non-scaling-stroke;
}

.ch04-visual[data-unit-visual-extension] .ch04-fixed-support,
.ch04-visual[data-unit-visual-extension] .ch04-pivot {
    fill: #d7e3e1;
    stroke: var(--ch04-ink);
    stroke-width: 1.25;
    vector-effect: non-scaling-stroke;
}

.ch04-visual[data-unit-visual-extension] :is(.ch04-rigid-board, .ch04-beam) {
    fill: #dce8e6;
    stroke: var(--ch04-ink);
    stroke-width: 1.35;
    vector-effect: non-scaling-stroke;
}

.ch04-visual[data-unit-visual-extension] .ch04-rigid-bar {
    stroke: var(--ch04-ink);
    stroke-width: 8;
    stroke-linecap: round;
    vector-effect: non-scaling-stroke;
}

.ch04-visual[data-unit-visual-extension] .ch04-wheel-rim {
    fill: rgb(231 240 238 / .9);
    stroke: var(--ch04-ink);
    stroke-width: 7;
    vector-effect: non-scaling-stroke;
}

.ch04-visual[data-unit-visual-extension] .ch04-wheel-hub {
    fill: #fff;
    stroke: var(--ch04-ink);
    stroke-width: 4;
    vector-effect: non-scaling-stroke;
}

.ch04-visual[data-unit-visual-extension] .ch04-wheel-spoke {
    stroke: #758b90;
    stroke-width: 3;
    vector-effect: non-scaling-stroke;
}

.ch04-visual[data-unit-visual-extension] :is(
    .ch04-cube-front,
    .ch04-cube-top,
    .ch04-cube-side
) {
    stroke: rgb(23 59 69 / .55);
    stroke-width: 1.25;
    vector-effect: non-scaling-stroke;
}

.ch04-visual[data-unit-visual-extension] .ch04-cube-front.is-sample-a {
    fill: #72a9bb;
}

.ch04-visual[data-unit-visual-extension] .ch04-cube-top.is-sample-a {
    fill: #a8cad5;
}

.ch04-visual[data-unit-visual-extension] .ch04-cube-side.is-sample-a {
    fill: #4f899e;
}

.ch04-visual[data-unit-visual-extension] .ch04-cube-front.is-sample-b {
    fill: #d59263;
}

.ch04-visual[data-unit-visual-extension] .ch04-cube-top.is-sample-b {
    fill: #e7b18d;
}

.ch04-visual[data-unit-visual-extension] .ch04-cube-side.is-sample-b {
    fill: #ae663a;
}

.ch04-visual[data-unit-visual-extension] .ch04-cube-front.is-unit-cube {
    fill: #72a9bb;
}

.ch04-visual[data-unit-visual-extension] .ch04-cube-top.is-unit-cube {
    fill: #a8cad5;
}

.ch04-visual[data-unit-visual-extension] .ch04-cube-side.is-unit-cube {
    fill: #4f899e;
}

.ch04-visual[data-unit-visual-extension] .ch04-surface {
    stroke: var(--ch04-ink);
    stroke-width: 2;
    vector-effect: non-scaling-stroke;
}

.ch04-visual[data-unit-visual-extension] .ch04-pressure-block,
.ch04-visual[data-unit-visual-extension] .ch04-submerged-block {
    fill: #e8dfcf;
    stroke: #765e45;
    stroke-width: 1.45;
    vector-effect: non-scaling-stroke;
}

.ch04-visual[data-unit-visual-extension] .ch04-contact-line {
    stroke: var(--ch04-force);
    stroke-width: 6;
    stroke-linecap: round;
    vector-effect: non-scaling-stroke;
}

.ch04-visual[data-unit-visual-extension] .ch04-tank {
    fill: none;
    stroke: var(--ch04-ink);
    stroke-width: 1.55;
    vector-effect: non-scaling-stroke;
}

.ch04-visual[data-unit-visual-extension] .ch04-fluid {
    fill: rgb(92 173 195 / .23);
}

.ch04-visual[data-unit-visual-extension] .ch04-fluid.is-oil {
    fill: rgb(210 164 75 / .25);
}

.ch04-visual[data-unit-visual-extension] .ch04-fluid.is-dense {
    fill: rgb(86 116 184 / .28);
}

.ch04-visual[data-unit-visual-extension] .ch04-fluid-surface {
    stroke: #4389a0;
    stroke-width: 2;
    vector-effect: non-scaling-stroke;
}

.ch04-visual[data-unit-visual-extension] .ch04-fluid-slice {
    fill: rgb(255 255 255 / .34);
    stroke: color-mix(in srgb, var(--ch04-pressure) 72%, transparent);
    stroke-width: 1.2;
    stroke-dasharray: 5 5;
    vector-effect: non-scaling-stroke;
}

.ch04-visual[data-unit-visual-extension] .ch04-slice-face {
    stroke: var(--ch04-pressure);
    stroke-width: 2;
    vector-effect: non-scaling-stroke;
}

.ch04-visual[data-unit-visual-extension] .ch04-displaced-outline {
    fill: none;
    stroke: var(--ch04-upthrust);
    stroke-width: 1.3;
    stroke-dasharray: 6 5;
    vector-effect: non-scaling-stroke;
}

.ch04-visual[data-unit-visual-extension] .ch04-parcel-shape {
    fill: rgb(92 173 195 / .52);
    stroke: #4389a0;
    stroke-width: 1.35;
    vector-effect: non-scaling-stroke;
}

@media (max-width: 640px) {
    :is(
        [data-unit-visual-extension="door_moment_explorer"],
        [data-unit-visual-extension="plumb_line_settle_timeline"],
        [data-unit-visual-extension="moment_geometry_lab"],
        [data-unit-visual-extension="beam_balance_timeline"],
        [data-unit-visual-extension="couple_rotation_timeline"],
        [data-unit-visual-extension="equilibrium_conditions_lab"],
        [data-unit-visual-extension="force_triangle_build_timeline"],
        [data-unit-visual-extension="density_comparison_lab"],
        [data-unit-visual-extension="pressure_contact_lab"],
        [data-unit-visual-extension="hydrostatic_slice_lab"],
        [data-unit-visual-extension="upthrust_submerge_timeline"],
        [data-unit-visual-extension="archimedes_displacement_timeline"]
    ) {
        padding: .8rem;
        border-radius: .94rem;
    }

    .ch04-visual[data-unit-visual-extension] .ch04-state-controls {
        display: flex;
        flex-wrap: wrap;
        gap: .34rem;
    }

    .ch04-visual[data-unit-visual-extension] :is(.ch04-state-button, .ch04-timeline-button) {
        min-height: 36px;
        padding: .4rem .46rem;
        overflow: visible;
        font-size: max(var(--unit-text-meta, 12px), 11px);
        text-overflow: clip;
    }

    .ch04-visual[data-unit-visual-extension] .ch04-state-button {
        flex: 1 0 max-content;
        width: auto;
        max-width: 100%;
    }

    .ch04-visual[data-unit-visual-extension] .ch04-timeline {
        grid-template-columns: auto auto minmax(0, 1fr);
        gap: .38rem;
    }

    .ch04-visual[data-unit-visual-extension] .ch04-timeline-phase {
        grid-column: 1 / -1;
        text-align: left;
        white-space: normal;
    }

    .ch04-visual[data-unit-visual-extension] :is(.ch04-math-label, .ch04-text-label) {
        max-width: 54%;
        padding: .09rem .18rem;
        font-size: max(.72rem, var(--unit-text-micro, 11px));
    }

    .ch04-visual[data-unit-visual-extension] .ch04-text-label {
        font-size: max(.7rem, var(--unit-text-micro, 11px));
    }

    .ch04-visual[data-unit-visual-extension] :is(.ch04-math-label, .ch04-text-label).is-result {
        max-width: 94%;
        font-size: max(.67rem, var(--unit-text-micro, 11px));
    }

    .ch04-visual[data-unit-visual-extension] .ch04-state-summary {
        grid-template-columns: 1fr;
        gap: .28rem;
        padding: .64rem .68rem;
    }

    [data-unit-visual-extension="equilibrium_conditions_lab"] .is-consequence {
        display: none !important;
    }

    [data-unit-visual-extension="equilibrium_conditions_lab"] .is-result.is-warning {
        max-width: 98%;
        font-size: clamp(.64rem, 2.8vw, .74rem);
    }

    [data-unit-visual-extension="equilibrium_conditions_lab"] .is-result.is-warning mjx-container {
        font-size: 82% !important;
    }
}

@media (prefers-reduced-motion: reduce) {
    .ch04-visual[data-unit-visual-extension] *,
    .ch04-visual[data-unit-visual-extension] *::before,
    .ch04-visual[data-unit-visual-extension] *::after {
        scroll-behavior: auto !important;
        transition-duration: .001ms !important;
        animation-duration: .001ms !important;
        animation-iteration-count: 1 !important;
    }
}