:is(
    [data-unit-visual-extension="alpha_scattering_evidence_lab"],
    [data-unit-visual-extension="nuclear_atom_scale_builder"],
    [data-unit-visual-extension="nuclide_isotope_ledger"],
    [data-unit-visual-extension="nuclear_conservation_ledger"],
    [data-unit-visual-extension="radiation_identity_lab"],
    [data-unit-visual-extension="beta_energy_sharing_lab"],
    [data-unit-visual-extension="decay_equation_balancer"],
    [data-unit-visual-extension="particle_family_sorter"],
    [data-unit-visual-extension="hadron_charge_assembler"],
    [data-unit-visual-extension="beta_quark_timeline"]
) {
    --ch11-ink: #213348;
    --ch11-muted: #68798a;
    --ch11-line: #9aabba;
    --ch11-surface: #f4f7fb;
    --ch11-evidence: #087f8c;
    --ch11-alpha: #c76725;
    --ch11-beta: #a74378;
    --ch11-gamma: #6558aa;
    --ch11-charge: #b5494e;
    --ch11-neutral: #617489;
    --ch11-change: #168160;
    margin: clamp(1rem, 2.3vw, 1.65rem) 0;
    padding: clamp(0.9rem, 2.25vw, 1.35rem);
    border: 1px solid color-mix(in srgb, var(--ch11-evidence) 16%, transparent);
    border-radius: 1.25rem;
    background: linear-gradient(145deg, #fff 0%, var(--ch11-surface) 100%);
    color: var(--ch11-ink);
    box-shadow: 0 0.8rem 2rem rgb(33 51 72 / 0.065);
    overflow: clip;
}

.ch11-visual[data-unit-visual-extension] .ch11-visual-heading {
    display: grid;
    gap: 0.16rem;
    margin-bottom: 0.82rem;
}

.ch11-visual[data-unit-visual-extension] .ch11-visual-heading h3 {
    margin: 0;
    color: var(--ch11-ink);
    font-size: var(--unit-text-heading-medium, 17px);
    font-weight: 750;
    line-height: 1.22;
    letter-spacing: -0.015em;
}

.ch11-visual[data-unit-visual-extension] .ch11-visual-kicker {
    margin: 0;
    color: var(--ch11-evidence);
    font-size: var(--unit-text-micro, 11px);
    font-weight: 800;
    letter-spacing: 0.085em;
    text-transform: uppercase;
}

.ch11-visual[data-unit-visual-extension] .ch11-visual-controls.unit-dynamics-controls {
    display: grid;
    width: 100%;
    grid-template-columns: repeat(auto-fit, minmax(min(5.7rem, 100%), 1fr));
    gap: 0.42rem;
    margin: 0 0 0.75rem;
}

[data-unit-visual-extension="beta_quark_timeline"].ch11-visual .ch11-visual-controls.unit-dynamics-controls {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.ch11-visual[data-unit-visual-extension] .unit-dynamics-control {
    min-width: 0;
    height: 40px;
    padding: 0.44rem 0.46rem;
    border: 1px solid color-mix(in srgb, var(--ch11-line) 62%, transparent);
    border-radius: 0.72rem;
    background: rgb(255 255 255 / 0.94);
    color: var(--ch11-ink);
    font: inherit;
    font-size: var(--unit-text-meta, 12px);
    font-weight: 740;
    line-height: 1;
    white-space: nowrap;
    text-overflow: ellipsis;
    overflow: hidden;
    cursor: pointer;
}

.ch11-visual[data-unit-visual-extension] .unit-dynamics-control:hover {
    border-color: var(--ch11-evidence);
}

.ch11-visual[data-unit-visual-extension] .unit-dynamics-control[aria-pressed="true"] {
    border-color: var(--ch11-evidence);
    background: var(--ch11-evidence);
    color: #fff;
    box-shadow: 0 0.32rem 0.85rem rgb(8 127 140 / 0.2);
}

.ch11-visual[data-unit-visual-extension] .unit-dynamics-auto[hidden] {
    display: none !important;
}

.ch11-visual[data-unit-visual-extension] .ch11-timeline {
    display: grid;
    grid-template-columns: max-content minmax(6rem, 1fr) max-content;
    align-items: center;
    gap: 0.62rem;
    margin: -0.16rem 0 0.82rem;
    padding: 0.56rem 0.65rem;
    border-radius: 0.78rem;
    background: color-mix(in srgb, var(--ch11-gamma) 5%, #fff);
}

.ch11-visual[data-unit-visual-extension] .ch11-timeline-play {
    min-width: 4.5rem;
    min-height: 34px;
    padding: 0.32rem 0.66rem;
    border: 1px solid color-mix(in srgb, var(--ch11-gamma) 42%, transparent);
    border-radius: 0.6rem;
    background: #fff;
    color: var(--ch11-gamma);
    font: inherit;
    font-size: var(--unit-text-meta, 12px);
    font-weight: 760;
    white-space: nowrap;
    cursor: pointer;
}

.ch11-visual[data-unit-visual-extension] .ch11-timeline-scrub {
    width: 100%;
    min-width: 0;
    accent-color: var(--ch11-gamma);
}

.ch11-visual[data-unit-visual-extension] .ch11-timeline-phase {
    color: var(--ch11-muted);
    font-size: var(--unit-text-meta, 12px);
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
}

.ch11-visual[data-unit-visual-extension] .ch11-visual-drawing {
    position: relative;
    width: 100%;
    aspect-ratio: var(--ch11-drawing-ratio, 720 / 390);
    border-radius: 0.95rem;
    background: rgb(255 255 255 / 0.78);
    container-type: inline-size;
    overflow: clip;
}

.ch11-visual[data-unit-visual-extension] .ch11-visual-drawing > svg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    max-height: none;
    overflow: hidden;
}

.ch11-visual[data-unit-visual-extension] :is(.ch11-math-label, .ch11-text-label) {
    position: absolute;
    z-index: 4;
    max-width: 50%;
    transform: translate(-50%, -50%);
    color: var(--ch11-ink);
    font-size: clamp(0.61rem, 2.02cqi, 0.9rem);
    font-weight: 670;
    line-height: 1.05;
    white-space: nowrap;
    pointer-events: none;
}

.ch11-visual[data-unit-visual-extension] :is(.ch11-math-label, .ch11-text-label)[data-math-anchor="start"] {
    transform: translate(0, -50%);
}

.ch11-visual[data-unit-visual-extension] :is(.ch11-math-label, .ch11-text-label)[data-math-anchor="end"] {
    transform: translate(-100%, -50%);
}

[data-unit-visual-extension="particle_family_sorter"].ch11-visual .is-family-caption {
    width: 88%;
    max-width: 88%;
    white-space: normal;
    text-align: center;
    line-height: 1.12;
}

.ch11-visual[data-unit-visual-extension] .ch11-nuclide-main,
.ch11-visual[data-unit-visual-extension] .ch11-equation-main {
    font-size: clamp(0.72rem, 2.7cqi, 1.16rem);
}

.ch11-visual[data-unit-visual-extension] .ch11-identity-symbol {
    font-size: clamp(0.78rem, 3cqi, 1.3rem);
}

.ch11-visual[data-unit-visual-extension] .ch11-identity-composition {
    font-size: clamp(0.56rem, 1.82cqi, 0.78rem);
}

.ch11-visual[data-unit-visual-extension] .is-evidence { color: var(--ch11-evidence); }
.ch11-visual[data-unit-visual-extension] .is-alpha { color: var(--ch11-alpha); }
.ch11-visual[data-unit-visual-extension] .is-beta { color: var(--ch11-beta); }
.ch11-visual[data-unit-visual-extension] .is-gamma { color: var(--ch11-gamma); }
.ch11-visual[data-unit-visual-extension] .is-charge { color: var(--ch11-charge); }
.ch11-visual[data-unit-visual-extension] .is-neutral { color: var(--ch11-neutral); }
.ch11-visual[data-unit-visual-extension] .is-change { color: var(--ch11-change); }

.ch11-visual[data-unit-visual-extension] .ch11-stage-surface {
    fill: rgb(255 255 255 / 0.6);
    stroke: rgb(8 127 140 / 0.12);
    stroke-width: 1;
}

.ch11-visual[data-unit-visual-extension] .ch11-vector {
    fill: none;
    stroke-width: 2.15;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.ch11-visual[data-unit-visual-extension] .ch11-arrowhead {
    fill: none;
    stroke-width: 1.9;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.ch11-visual[data-unit-visual-extension] :is(.ch11-vector.is-evidence, .ch11-arrowhead.is-evidence) { stroke: var(--ch11-evidence); }
.ch11-visual[data-unit-visual-extension] :is(.ch11-vector.is-alpha, .ch11-arrowhead.is-alpha) { stroke: var(--ch11-alpha); }
.ch11-visual[data-unit-visual-extension] :is(.ch11-vector.is-beta, .ch11-arrowhead.is-beta) { stroke: var(--ch11-beta); }
.ch11-visual[data-unit-visual-extension] :is(.ch11-vector.is-gamma, .ch11-arrowhead.is-gamma) { stroke: var(--ch11-gamma); }
.ch11-visual[data-unit-visual-extension] :is(.ch11-vector.is-charge, .ch11-arrowhead.is-charge) { stroke: var(--ch11-charge); }
.ch11-visual[data-unit-visual-extension] :is(.ch11-vector.is-neutral, .ch11-arrowhead.is-neutral) { stroke: var(--ch11-neutral); }
.ch11-visual[data-unit-visual-extension] :is(.ch11-vector.is-change, .ch11-arrowhead.is-change) { stroke: var(--ch11-change); }

.ch11-visual[data-unit-visual-extension] :is(.ch11-construction, .ch11-family-divider) {
    fill: none;
    stroke: var(--ch11-line);
    stroke-width: 1;
    stroke-dasharray: 5 5;
}

.ch11-visual[data-unit-visual-extension] :is(.ch11-scale-line, .ch11-scale-cap) {
    stroke: var(--ch11-line);
    stroke-width: 1.1;
}

.ch11-visual[data-unit-visual-extension] .ch11-semantic-point {
    stroke: #fff;
    stroke-width: 1.1;
}

.ch11-visual[data-unit-visual-extension] .ch11-semantic-point.is-evidence { fill: var(--ch11-evidence); }
.ch11-visual[data-unit-visual-extension] .ch11-semantic-point.is-alpha { fill: var(--ch11-alpha); }
.ch11-visual[data-unit-visual-extension] .ch11-semantic-point.is-beta { fill: var(--ch11-beta); }
.ch11-visual[data-unit-visual-extension] .ch11-semantic-point.is-gamma { fill: var(--ch11-gamma); }
.ch11-visual[data-unit-visual-extension] .ch11-semantic-point.is-charge { fill: var(--ch11-charge); }
.ch11-visual[data-unit-visual-extension] .ch11-semantic-point.is-neutral { fill: var(--ch11-neutral); }
.ch11-visual[data-unit-visual-extension] .ch11-semantic-point.is-change { fill: var(--ch11-change); }

.ch11-visual[data-unit-visual-extension] .ch11-particle {
    stroke-width: 1.55;
}

.ch11-visual[data-unit-visual-extension] .ch11-particle.is-evidence { fill: #e5f5f6; stroke: var(--ch11-evidence); }
.ch11-visual[data-unit-visual-extension] .ch11-particle.is-alpha { fill: #fff0e5; stroke: var(--ch11-alpha); }
.ch11-visual[data-unit-visual-extension] .ch11-particle.is-beta { fill: #f9eaf2; stroke: var(--ch11-beta); }
.ch11-visual[data-unit-visual-extension] .ch11-particle.is-gamma { fill: #efedfb; stroke: var(--ch11-gamma); }
.ch11-visual[data-unit-visual-extension] .ch11-particle.is-charge { fill: #fbeaec; stroke: var(--ch11-charge); }
.ch11-visual[data-unit-visual-extension] .ch11-particle.is-neutral { fill: #edf2f5; stroke: var(--ch11-neutral); }
.ch11-visual[data-unit-visual-extension] .ch11-particle.is-change { fill: #e8f6f1; stroke: var(--ch11-change); }

.ch11-visual[data-unit-visual-extension] .ch11-foil {
    stroke: var(--ch11-neutral);
    stroke-width: 2.2;
}

.ch11-visual[data-unit-visual-extension] .ch11-atom-shell {
    fill: none;
    stroke: color-mix(in srgb, var(--ch11-neutral) 55%, transparent);
    stroke-width: 1;
    stroke-dasharray: 3 3;
}

.ch11-visual[data-unit-visual-extension] .ch11-detector {
    fill: none;
    stroke: var(--ch11-evidence);
    stroke-width: 3;
    stroke-linecap: round;
}

.ch11-visual[data-unit-visual-extension] .ch11-event-path {
    stroke-dasharray: 8 5;
}

.ch11-visual[data-unit-visual-extension] .ch11-event-path.is-summary {
    opacity: 0.74;
}

.ch11-visual[data-unit-visual-extension] .ch11-event-path.is-rare {
    stroke: var(--ch11-change);
}

.ch11-visual[data-unit-visual-extension] .ch11-close-approach-ring {
    fill: none;
    stroke: var(--ch11-change);
    stroke-width: 1.5;
}

.ch11-visual[data-unit-visual-extension] .ch11-count-bar {
    stroke: #fff;
    stroke-width: 1;
}

.ch11-visual[data-unit-visual-extension] .ch11-count-bar.is-0 { fill: var(--ch11-evidence); }
.ch11-visual[data-unit-visual-extension] .ch11-count-bar.is-1 { fill: var(--ch11-alpha); }
.ch11-visual[data-unit-visual-extension] .ch11-count-bar.is-2 { fill: var(--ch11-change); }

.ch11-visual[data-unit-visual-extension] .ch11-orbital-region {
    fill: rgb(8 127 140 / 0.035);
    stroke: var(--ch11-evidence);
    stroke-width: 1.2;
    stroke-dasharray: 6 6;
}

.ch11-visual[data-unit-visual-extension] .ch11-nucleus-point {
    fill: var(--ch11-charge);
    stroke: #fff;
    stroke-width: 1;
}

.ch11-visual[data-unit-visual-extension] :is(.ch11-nucleus-zoom, .ch11-nucleus-ledger, .ch11-source-nucleus) {
    fill: #fbf3f4;
    stroke: var(--ch11-charge);
    stroke-width: 1.5;
}

.ch11-visual[data-unit-visual-extension] .ch11-evidence-card {
    fill: #f1f8f9;
    stroke: var(--ch11-evidence);
    stroke-width: 1.2;
}

.ch11-visual[data-unit-visual-extension] :is(.ch11-ledger-card, .ch11-identity-card, .ch11-charge-card, .ch11-change-card) {
    fill: #fbfcfe;
    stroke: color-mix(in srgb, var(--ch11-line) 62%, transparent);
    stroke-width: 1.1;
}

.ch11-visual[data-unit-visual-extension] .ch11-invariant-track {
    fill: #e8eef2;
    stroke: color-mix(in srgb, var(--ch11-line) 52%, transparent);
    stroke-width: 1;
}

.ch11-visual[data-unit-visual-extension] .ch11-invariant-fill {
    fill: color-mix(in srgb, var(--ch11-change) 74%, #fff);
}

.ch11-visual[data-unit-visual-extension] .ch11-source-nucleus {
    fill: #f7ecee;
}

.ch11-visual[data-unit-visual-extension] .ch11-alpha-cluster {
    fill: #fff3e8;
    stroke: var(--ch11-alpha);
    stroke-width: 1.5;
}

.ch11-visual[data-unit-visual-extension] .ch11-gamma-wave {
    fill: none;
    stroke: var(--ch11-gamma);
    stroke-width: 2.2;
    stroke-linecap: round;
}

.ch11-visual[data-unit-visual-extension] :is(.ch11-axis, .ch11-scale-line) {
    stroke: var(--ch11-neutral);
    stroke-width: 1.35;
}

.ch11-visual[data-unit-visual-extension] .ch11-spectrum-line {
    stroke-width: 2.2;
}

.ch11-visual[data-unit-visual-extension] .ch11-spectrum-line.is-alpha {
    stroke: var(--ch11-alpha);
}

.ch11-visual[data-unit-visual-extension] .ch11-beta-spectrum {
    fill: none;
    stroke: var(--ch11-beta);
    stroke-width: 2.3;
    stroke-linecap: round;
}

.ch11-visual[data-unit-visual-extension] .ch11-event-energy {
    stroke: var(--ch11-beta);
    stroke-width: 1.25;
    stroke-dasharray: 4 4;
}

.ch11-visual[data-unit-visual-extension] .ch11-energy-total {
    fill: #edf2f5;
    stroke: var(--ch11-line);
    stroke-width: 1;
}

.ch11-visual[data-unit-visual-extension] .ch11-energy-alpha { fill: var(--ch11-alpha); }
.ch11-visual[data-unit-visual-extension] .ch11-energy-beta { fill: var(--ch11-beta); }
.ch11-visual[data-unit-visual-extension] .ch11-energy-partner { fill: var(--ch11-gamma); }
.ch11-visual[data-unit-visual-extension] .ch11-energy-recoil { fill: var(--ch11-neutral); }

.ch11-visual[data-unit-visual-extension] :is(.ch11-equation-lane, .ch11-audit-card) {
    fill: #f8fafc;
    stroke: color-mix(in srgb, var(--ch11-evidence) 34%, transparent);
    stroke-width: 1.1;
}

.ch11-visual[data-unit-visual-extension] .ch11-family-card {
    stroke-width: 1.2;
}

.ch11-visual[data-unit-visual-extension] .ch11-family-card.is-fundamental {
    fill: #eff8f8;
    stroke: var(--ch11-evidence);
}

.ch11-visual[data-unit-visual-extension] .ch11-family-card.is-composite {
    fill: #f9f1f4;
    stroke: var(--ch11-change);
}

.ch11-visual[data-unit-visual-extension] .ch11-family-node {
    fill: rgb(255 255 255 / 0.82);
    stroke: color-mix(in srgb, var(--ch11-line) 75%, transparent);
    stroke-width: 1.1;
}

.ch11-visual[data-unit-visual-extension] .ch11-family-node.is-hadron {
    fill: rgb(255 255 255 / 0.54);
    stroke: var(--ch11-change);
}

.ch11-visual[data-unit-visual-extension] .ch11-family-leaf {
    fill: #fff;
    stroke: color-mix(in srgb, var(--ch11-change) 56%, transparent);
    stroke-width: 1;
}

.ch11-visual[data-unit-visual-extension] :is(.ch11-family-node, .ch11-family-leaf).is-active {
    fill: #fff8df;
    stroke: var(--ch11-alpha);
    stroke-width: 2;
}

.ch11-visual[data-unit-visual-extension] .ch11-hadron-boundary {
    fill: rgb(22 129 96 / 0.04);
    stroke: var(--ch11-change);
    stroke-width: 1.5;
    stroke-dasharray: 7 5;
}

.ch11-visual[data-unit-visual-extension] .ch11-changing-quark {
    stroke: var(--ch11-change);
    stroke-width: 2.8;
    filter: drop-shadow(0 0 5px rgb(22 129 96 / 0.3));
}

.ch11-visual[data-unit-visual-extension] :is(.ch11-visual-state-title, .ch11-visual-caption) {
    margin-inline: 0.1rem;
}

.ch11-visual[data-unit-visual-extension] .ch11-visual-state-title {
    margin-top: 0.76rem;
    margin-bottom: 0.2rem;
    color: var(--ch11-ink);
    font-size: var(--unit-text-body, 15.5px);
    font-weight: 760;
    line-height: 1.26;
}

.ch11-visual[data-unit-visual-extension] .ch11-visual-caption {
    margin-top: 0;
    margin-bottom: 0;
    color: var(--ch11-muted);
    font-size: var(--unit-text-body, 15.5px);
    line-height: 1.52;
}

@keyframes ch11-path-trace {
    from { stroke-dashoffset: 180; opacity: 0.45; }
    to { stroke-dashoffset: 0; opacity: 1; }
}

@keyframes ch11-emission-enter {
    from { transform: translateX(-12px) scale(0.82); opacity: 0.45; }
    to { transform: translateX(0) scale(1); opacity: 1; }
}

@keyframes ch11-gamma-travel {
    from { stroke-dashoffset: 30; opacity: 0.55; }
    to { stroke-dashoffset: 0; opacity: 1; }
}

@keyframes ch11-panel-enter {
    from { opacity: 0.72; transform: translateY(3px); }
    to { opacity: 1; transform: translateY(0); }
}

.ch11-visual[data-unit-visual-extension] .ch11-event-path {
    stroke-dasharray: 180;
    animation: ch11-path-trace 900ms ease-out 1;
}

.ch11-visual[data-unit-visual-extension] .ch11-moving {
    transform-box: fill-box;
    transform-origin: center;
    animation: ch11-emission-enter 620ms ease-out 1;
}

.ch11-visual[data-unit-visual-extension] .ch11-gamma-wave.ch11-moving {
    stroke-dasharray: 30;
    animation: ch11-gamma-travel 740ms ease-out 1;
}

.ch11-visual[data-unit-visual-extension] .ch11-visual-panel.is-state-entering {
    animation: ch11-panel-enter 260ms ease-out 1;
}

.ch11-visual[data-unit-visual-extension].is-motion-paused * {
    animation-play-state: paused !important;
}

@media (max-width: 620px) {
    :is(
        [data-unit-visual-extension="alpha_scattering_evidence_lab"],
        [data-unit-visual-extension="nuclear_atom_scale_builder"],
        [data-unit-visual-extension="nuclide_isotope_ledger"],
        [data-unit-visual-extension="nuclear_conservation_ledger"],
        [data-unit-visual-extension="radiation_identity_lab"],
        [data-unit-visual-extension="beta_energy_sharing_lab"],
        [data-unit-visual-extension="decay_equation_balancer"],
        [data-unit-visual-extension="particle_family_sorter"],
        [data-unit-visual-extension="hadron_charge_assembler"],
        [data-unit-visual-extension="beta_quark_timeline"]
    ) {
        padding: 0.82rem;
        border-radius: 1.05rem;
    }

    .ch11-visual[data-unit-visual-extension] .ch11-visual-controls.unit-dynamics-controls {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    [data-unit-visual-extension="beta_quark_timeline"].ch11-visual .ch11-visual-controls.unit-dynamics-controls {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .ch11-visual[data-unit-visual-extension] .unit-dynamics-control {
        height: 38px;
        padding-inline: 0.32rem;
        font-size: 11px;
    }

    .ch11-visual[data-unit-visual-extension] .ch11-timeline {
        grid-template-columns: max-content minmax(0, 1fr) max-content;
        gap: 0.42rem;
        padding-inline: 0.5rem;
    }

    .ch11-visual[data-unit-visual-extension] :is(.ch11-math-label, .ch11-text-label) {
        max-width: 72%;
        font-size: clamp(11px, calc(var(--unit-text-meta, 12px) * 0.9), 12.5px);
    }

    .ch11-visual[data-unit-visual-extension] .ch11-nuclide-main,
    .ch11-visual[data-unit-visual-extension] .ch11-equation-main {
        font-size: clamp(12px, var(--unit-text-meta, 12px), 13.5px);
    }
}

@media (prefers-reduced-motion: reduce) {
    .ch11-visual[data-unit-visual-extension] * {
        animation: none !important;
        transition: none !important;
        scroll-behavior: auto !important;
    }
}