:is(
    [data-unit-visual-extension="oscillation_vocabulary"],
    [data-unit-visual-extension="phase_cycle_map"],
    [data-unit-visual-extension="shm_acceleration_signature"],
    [data-unit-visual-extension="shm_time_graphs"],
    [data-unit-visual-extension="velocity_displacement_loop"],
    [data-unit-visual-extension="shm_synchronised_graphs"],
    [data-unit-visual-extension="shm_energy_exchange"],
    [data-unit-visual-extension="damping_return_types"],
    [data-unit-visual-extension="resonance_response"]
) {
    --ch17-ink: #17333d;
    --ch17-muted: #60757d;
    --ch17-line: #78929a;
    --ch17-grid: #d7e3e6;
    --ch17-surface: #f4f9f8;
    --ch17-surface-strong: #e4f2ef;
    --ch17-primary: #087f74;
    --ch17-secondary: #c8672b;
    --ch17-tertiary: #6954a3;
    margin: clamp(1.1rem, 2.6vw, 1.8rem) 0;
    padding: clamp(1rem, 2.6vw, 1.45rem);
    border: 1px solid color-mix(in srgb, var(--ch17-primary) 18%, transparent);
    border-radius: 1.25rem;
    background: linear-gradient(145deg, #fbfdfc 0%, var(--ch17-surface) 100%);
    color: var(--ch17-ink);
    box-shadow: 0 0.8rem 2rem rgb(21 51 61 / 0.07);
    overflow: clip;
}

:is(
    [data-unit-visual-extension="oscillation_vocabulary"],
    [data-unit-visual-extension="phase_cycle_map"],
    [data-unit-visual-extension="shm_acceleration_signature"],
    [data-unit-visual-extension="shm_time_graphs"],
    [data-unit-visual-extension="velocity_displacement_loop"],
    [data-unit-visual-extension="shm_synchronised_graphs"],
    [data-unit-visual-extension="shm_energy_exchange"],
    [data-unit-visual-extension="damping_return_types"],
    [data-unit-visual-extension="resonance_response"]
) .ch17-visual-heading {
    display: grid;
    gap: 0.2rem;
    margin-bottom: 0.9rem;
}

:is(
    [data-unit-visual-extension="oscillation_vocabulary"],
    [data-unit-visual-extension="phase_cycle_map"],
    [data-unit-visual-extension="shm_acceleration_signature"],
    [data-unit-visual-extension="shm_time_graphs"],
    [data-unit-visual-extension="velocity_displacement_loop"],
    [data-unit-visual-extension="shm_synchronised_graphs"],
    [data-unit-visual-extension="shm_energy_exchange"],
    [data-unit-visual-extension="damping_return_types"],
    [data-unit-visual-extension="resonance_response"]
) .ch17-visual-heading h3 {
    margin: 0;
    font-size: var(--unit-text-heading-medium, 17px);
    line-height: 1.18;
}

:is(
    [data-unit-visual-extension="oscillation_vocabulary"],
    [data-unit-visual-extension="phase_cycle_map"],
    [data-unit-visual-extension="shm_acceleration_signature"],
    [data-unit-visual-extension="shm_time_graphs"],
    [data-unit-visual-extension="velocity_displacement_loop"],
    [data-unit-visual-extension="shm_synchronised_graphs"],
    [data-unit-visual-extension="shm_energy_exchange"],
    [data-unit-visual-extension="damping_return_types"],
    [data-unit-visual-extension="resonance_response"]
) .ch17-visual-kicker {
    margin: 0;
    color: var(--ch17-primary);
    font-size: var(--unit-text-micro, 11px);
    font-weight: 800;
    letter-spacing: 0.09em;
    text-transform: uppercase;
}

:is(
    [data-unit-visual-extension="oscillation_vocabulary"],
    [data-unit-visual-extension="phase_cycle_map"],
    [data-unit-visual-extension="shm_acceleration_signature"],
    [data-unit-visual-extension="shm_time_graphs"],
    [data-unit-visual-extension="velocity_displacement_loop"],
    [data-unit-visual-extension="shm_synchronised_graphs"],
    [data-unit-visual-extension="shm_energy_exchange"],
    [data-unit-visual-extension="damping_return_types"],
    [data-unit-visual-extension="resonance_response"]
) .ch17-visual-controls {
    display: grid;
    grid-template-columns: repeat(var(--ch17-control-count, 4), minmax(0, 1fr));
    gap: 0.45rem;
    margin-bottom: 0.85rem;
}

:is(
    [data-unit-visual-extension="oscillation_vocabulary"],
    [data-unit-visual-extension="phase_cycle_map"],
    [data-unit-visual-extension="shm_acceleration_signature"],
    [data-unit-visual-extension="shm_time_graphs"],
    [data-unit-visual-extension="velocity_displacement_loop"],
    [data-unit-visual-extension="shm_synchronised_graphs"],
    [data-unit-visual-extension="shm_energy_exchange"],
    [data-unit-visual-extension="damping_return_types"],
    [data-unit-visual-extension="resonance_response"]
) .ch17-visual-control {
    height: 41px;
    min-width: 0;
    padding: 0.48rem 0.42rem;
    border: 1px solid color-mix(in srgb, var(--ch17-line) 65%, transparent);
    border-radius: 0.72rem;
    background: rgb(255 255 255 / 0.86);
    color: var(--ch17-ink);
    font: inherit;
    font-size: var(--unit-text-meta, 12px);
    font-weight: 750;
    line-height: 1;
    white-space: nowrap;
    text-overflow: ellipsis;
    overflow: hidden;
    cursor: pointer;
}

:is(
    [data-unit-visual-extension="oscillation_vocabulary"],
    [data-unit-visual-extension="phase_cycle_map"],
    [data-unit-visual-extension="shm_acceleration_signature"],
    [data-unit-visual-extension="shm_time_graphs"],
    [data-unit-visual-extension="velocity_displacement_loop"],
    [data-unit-visual-extension="shm_synchronised_graphs"],
    [data-unit-visual-extension="shm_energy_exchange"],
    [data-unit-visual-extension="damping_return_types"],
    [data-unit-visual-extension="resonance_response"]
) .ch17-visual-control:hover {
    border-color: var(--ch17-primary);
}

:is(
    [data-unit-visual-extension="oscillation_vocabulary"],
    [data-unit-visual-extension="phase_cycle_map"],
    [data-unit-visual-extension="shm_acceleration_signature"],
    [data-unit-visual-extension="shm_time_graphs"],
    [data-unit-visual-extension="velocity_displacement_loop"],
    [data-unit-visual-extension="shm_synchronised_graphs"],
    [data-unit-visual-extension="shm_energy_exchange"],
    [data-unit-visual-extension="damping_return_types"],
    [data-unit-visual-extension="resonance_response"]
) .ch17-visual-control[aria-pressed="true"] {
    border-color: var(--ch17-primary);
    background: var(--ch17-primary);
    color: #fff;
    box-shadow: 0 0.35rem 0.9rem rgb(8 127 116 / 0.22);
}

.ch17-visual .ch17-timeline {
    display: grid;
    grid-template-columns: auto auto minmax(7rem, 1fr) minmax(9rem, auto);
    align-items: center;
    gap: 0.55rem;
    margin: -0.15rem 0 0.85rem;
    padding: 0.58rem;
    border: 1px solid color-mix(in srgb, var(--ch17-line) 45%, transparent);
    border-radius: 0.82rem;
    background: rgb(255 255 255 / 0.72);
}

.ch17-visual .ch17-timeline-button {
    min-width: 4.5rem;
    min-height: 36px;
    padding: 0.4rem 0.7rem;
    border: 1px solid color-mix(in srgb, var(--ch17-primary) 52%, var(--ch17-grid));
    border-radius: 999px;
    background: #fff;
    color: var(--ch17-primary);
    font: inherit;
    font-size: var(--unit-text-meta, 12px);
    font-weight: 800;
    cursor: pointer;
}

.ch17-visual .ch17-timeline-button:hover,
.ch17-visual .ch17-timeline-button[aria-pressed="true"] {
    border-color: var(--ch17-primary);
    background: var(--ch17-primary);
    color: #fff;
}

.ch17-visual .ch17-timeline-scrub {
    width: 100%;
    min-width: 0;
    accent-color: var(--ch17-primary);
}

.ch17-visual .ch17-timeline-phase {
    min-width: 0;
    color: var(--ch17-muted);
    font-size: var(--unit-text-meta, 12px);
    font-weight: 750;
    line-height: 1.25;
    text-align: right;
}

:is(
    [data-unit-visual-extension="oscillation_vocabulary"],
    [data-unit-visual-extension="phase_cycle_map"],
    [data-unit-visual-extension="shm_acceleration_signature"],
    [data-unit-visual-extension="shm_time_graphs"],
    [data-unit-visual-extension="velocity_displacement_loop"],
    [data-unit-visual-extension="shm_synchronised_graphs"],
    [data-unit-visual-extension="shm_energy_exchange"],
    [data-unit-visual-extension="damping_return_types"],
    [data-unit-visual-extension="resonance_response"]
) :is(.ch17-visual-stage, .ch17-visual-panel) {
    min-width: 0;
}

:is(
    [data-unit-visual-extension="oscillation_vocabulary"],
    [data-unit-visual-extension="phase_cycle_map"],
    [data-unit-visual-extension="shm_acceleration_signature"],
    [data-unit-visual-extension="shm_time_graphs"],
    [data-unit-visual-extension="velocity_displacement_loop"],
    [data-unit-visual-extension="shm_synchronised_graphs"],
    [data-unit-visual-extension="shm_energy_exchange"],
    [data-unit-visual-extension="damping_return_types"],
    [data-unit-visual-extension="resonance_response"]
) .ch17-visual-panel[hidden] {
    display: none !important;
}

:is(
    [data-unit-visual-extension="oscillation_vocabulary"],
    [data-unit-visual-extension="phase_cycle_map"],
    [data-unit-visual-extension="shm_acceleration_signature"],
    [data-unit-visual-extension="shm_time_graphs"],
    [data-unit-visual-extension="velocity_displacement_loop"],
    [data-unit-visual-extension="shm_synchronised_graphs"],
    [data-unit-visual-extension="shm_energy_exchange"],
    [data-unit-visual-extension="damping_return_types"],
    [data-unit-visual-extension="resonance_response"]
) .ch17-visual-drawing {
    position: relative;
    width: 100%;
    aspect-ratio: var(--ch17-drawing-ratio, 720 / 340);
    border-radius: 0.95rem;
    background: rgb(255 255 255 / 0.78);
    container-type: inline-size;
    overflow: clip;
}

:is(
    [data-unit-visual-extension="oscillation_vocabulary"],
    [data-unit-visual-extension="phase_cycle_map"],
    [data-unit-visual-extension="shm_acceleration_signature"],
    [data-unit-visual-extension="shm_time_graphs"],
    [data-unit-visual-extension="velocity_displacement_loop"],
    [data-unit-visual-extension="shm_synchronised_graphs"],
    [data-unit-visual-extension="shm_energy_exchange"],
    [data-unit-visual-extension="damping_return_types"],
    [data-unit-visual-extension="resonance_response"]
) .ch17-visual-drawing > svg {
    position: absolute;
    inset: 0;
    display: block;
    width: 100%;
    height: 100%;
    max-height: none;
    border-radius: inherit;
    background: transparent;
    overflow: visible;
}

:is(
    [data-unit-visual-extension="oscillation_vocabulary"],
    [data-unit-visual-extension="phase_cycle_map"],
    [data-unit-visual-extension="shm_acceleration_signature"],
    [data-unit-visual-extension="shm_time_graphs"],
    [data-unit-visual-extension="velocity_displacement_loop"],
    [data-unit-visual-extension="shm_synchronised_graphs"],
    [data-unit-visual-extension="shm_energy_exchange"],
    [data-unit-visual-extension="damping_return_types"],
    [data-unit-visual-extension="resonance_response"]
) .ch17-math-label {
    position: absolute;
    z-index: 2;
    max-width: 44%;
    color: var(--ch17-ink);
    font-size: clamp(0.66rem, 2.3cqw, 1rem);
    font-weight: 650;
    line-height: 1;
    white-space: nowrap;
    pointer-events: none;
    transform: translate(-50%, -50%);
}

:is(
    [data-unit-visual-extension="oscillation_vocabulary"],
    [data-unit-visual-extension="phase_cycle_map"],
    [data-unit-visual-extension="shm_acceleration_signature"],
    [data-unit-visual-extension="shm_time_graphs"],
    [data-unit-visual-extension="velocity_displacement_loop"],
    [data-unit-visual-extension="shm_synchronised_graphs"],
    [data-unit-visual-extension="shm_energy_exchange"],
    [data-unit-visual-extension="damping_return_types"],
    [data-unit-visual-extension="resonance_response"]
) .ch17-math-label[data-math-anchor="start"] {
    transform: translate(0, -50%);
}

:is(
    [data-unit-visual-extension="oscillation_vocabulary"],
    [data-unit-visual-extension="phase_cycle_map"],
    [data-unit-visual-extension="shm_acceleration_signature"],
    [data-unit-visual-extension="shm_time_graphs"],
    [data-unit-visual-extension="velocity_displacement_loop"],
    [data-unit-visual-extension="shm_synchronised_graphs"],
    [data-unit-visual-extension="shm_energy_exchange"],
    [data-unit-visual-extension="damping_return_types"],
    [data-unit-visual-extension="resonance_response"]
) .ch17-math-label[data-math-anchor="end"] {
    transform: translate(-100%, -50%);
}

:is(
    [data-unit-visual-extension="oscillation_vocabulary"],
    [data-unit-visual-extension="phase_cycle_map"],
    [data-unit-visual-extension="shm_acceleration_signature"],
    [data-unit-visual-extension="shm_time_graphs"],
    [data-unit-visual-extension="velocity_displacement_loop"],
    [data-unit-visual-extension="shm_synchronised_graphs"],
    [data-unit-visual-extension="shm_energy_exchange"],
    [data-unit-visual-extension="damping_return_types"],
    [data-unit-visual-extension="resonance_response"]
) .ch17-math-label :is(mjx-container, mjx-container[display="true"]) {
    margin: 0 !important;
    max-width: 100%;
}

:is(
    [data-unit-visual-extension="oscillation_vocabulary"],
    [data-unit-visual-extension="phase_cycle_map"],
    [data-unit-visual-extension="shm_acceleration_signature"],
    [data-unit-visual-extension="shm_time_graphs"],
    [data-unit-visual-extension="velocity_displacement_loop"],
    [data-unit-visual-extension="shm_synchronised_graphs"],
    [data-unit-visual-extension="shm_energy_exchange"],
    [data-unit-visual-extension="damping_return_types"],
    [data-unit-visual-extension="resonance_response"]
) .ch17-math-label.is-emphasis {
    font-size: clamp(0.78rem, 3.15cqw, 1.22rem);
}

:is(
    [data-unit-visual-extension="oscillation_vocabulary"],
    [data-unit-visual-extension="phase_cycle_map"],
    [data-unit-visual-extension="shm_acceleration_signature"],
    [data-unit-visual-extension="shm_time_graphs"],
    [data-unit-visual-extension="velocity_displacement_loop"],
    [data-unit-visual-extension="shm_synchronised_graphs"],
    [data-unit-visual-extension="shm_energy_exchange"],
    [data-unit-visual-extension="damping_return_types"],
    [data-unit-visual-extension="resonance_response"]
) .ch17-math-label.is-small {
    font-size: clamp(0.625rem, 1.95cqw, 0.84rem);
}

:is(
    [data-unit-visual-extension="oscillation_vocabulary"],
    [data-unit-visual-extension="phase_cycle_map"],
    [data-unit-visual-extension="shm_acceleration_signature"],
    [data-unit-visual-extension="shm_time_graphs"],
    [data-unit-visual-extension="velocity_displacement_loop"],
    [data-unit-visual-extension="shm_synchronised_graphs"],
    [data-unit-visual-extension="shm_energy_exchange"],
    [data-unit-visual-extension="damping_return_types"],
    [data-unit-visual-extension="resonance_response"]
) .ch17-math-label.is-verbal {
    color: var(--ch17-muted);
    font-family: Inter, ui-sans-serif, system-ui, sans-serif;
    font-size: clamp(0.66rem, 2.15cqw, 0.92rem);
    font-weight: 800;
    letter-spacing: 0.045em;
    text-transform: uppercase;
}

:is(
    [data-unit-visual-extension="oscillation_vocabulary"],
    [data-unit-visual-extension="phase_cycle_map"],
    [data-unit-visual-extension="shm_acceleration_signature"],
    [data-unit-visual-extension="shm_time_graphs"],
    [data-unit-visual-extension="velocity_displacement_loop"],
    [data-unit-visual-extension="shm_synchronised_graphs"],
    [data-unit-visual-extension="shm_energy_exchange"],
    [data-unit-visual-extension="damping_return_types"],
    [data-unit-visual-extension="resonance_response"]
) .ch17-math-label.is-primary-colour {
    color: var(--ch17-primary);
}

:is(
    [data-unit-visual-extension="oscillation_vocabulary"],
    [data-unit-visual-extension="phase_cycle_map"],
    [data-unit-visual-extension="shm_acceleration_signature"],
    [data-unit-visual-extension="shm_time_graphs"],
    [data-unit-visual-extension="velocity_displacement_loop"],
    [data-unit-visual-extension="shm_synchronised_graphs"],
    [data-unit-visual-extension="shm_energy_exchange"],
    [data-unit-visual-extension="damping_return_types"],
    [data-unit-visual-extension="resonance_response"]
) .ch17-math-label.is-secondary-colour {
    color: var(--ch17-secondary);
}

:is(
    [data-unit-visual-extension="oscillation_vocabulary"],
    [data-unit-visual-extension="phase_cycle_map"],
    [data-unit-visual-extension="shm_acceleration_signature"],
    [data-unit-visual-extension="shm_time_graphs"],
    [data-unit-visual-extension="velocity_displacement_loop"],
    [data-unit-visual-extension="shm_synchronised_graphs"],
    [data-unit-visual-extension="shm_energy_exchange"],
    [data-unit-visual-extension="damping_return_types"],
    [data-unit-visual-extension="resonance_response"]
) .ch17-visual-caption {
    margin: 0.75rem 0 0;
    color: var(--ch17-muted);
    font-size: var(--unit-text-small, 14px);
    line-height: 1.5;
}

:is(
    [data-unit-visual-extension="oscillation_vocabulary"],
    [data-unit-visual-extension="phase_cycle_map"],
    [data-unit-visual-extension="shm_acceleration_signature"],
    [data-unit-visual-extension="shm_time_graphs"],
    [data-unit-visual-extension="velocity_displacement_loop"],
    [data-unit-visual-extension="shm_synchronised_graphs"],
    [data-unit-visual-extension="shm_energy_exchange"],
    [data-unit-visual-extension="damping_return_types"],
    [data-unit-visual-extension="resonance_response"]
) :is(.ch17-axis, .ch17-track, .ch17-support) {
    fill: none;
    stroke: var(--ch17-ink);
    stroke-width: 1.35;
    vector-effect: non-scaling-stroke;
}

:is(
    [data-unit-visual-extension="oscillation_vocabulary"],
    [data-unit-visual-extension="phase_cycle_map"],
    [data-unit-visual-extension="shm_acceleration_signature"],
    [data-unit-visual-extension="shm_time_graphs"],
    [data-unit-visual-extension="velocity_displacement_loop"],
    [data-unit-visual-extension="shm_synchronised_graphs"],
    [data-unit-visual-extension="shm_energy_exchange"],
    [data-unit-visual-extension="damping_return_types"],
    [data-unit-visual-extension="resonance_response"]
) .ch17-track {
    stroke-width: 1.8;
    stroke-linecap: round;
}

:is(
    [data-unit-visual-extension="oscillation_vocabulary"],
    [data-unit-visual-extension="phase_cycle_map"],
    [data-unit-visual-extension="shm_acceleration_signature"],
    [data-unit-visual-extension="shm_time_graphs"],
    [data-unit-visual-extension="velocity_displacement_loop"],
    [data-unit-visual-extension="shm_synchronised_graphs"],
    [data-unit-visual-extension="shm_energy_exchange"],
    [data-unit-visual-extension="damping_return_types"],
    [data-unit-visual-extension="resonance_response"]
) :is(.ch17-construction, .ch17-cursor) {
    fill: none;
    stroke: var(--ch17-line);
    stroke-width: 1.2;
    vector-effect: non-scaling-stroke;
}

:is(
    [data-unit-visual-extension="oscillation_vocabulary"],
    [data-unit-visual-extension="phase_cycle_map"],
    [data-unit-visual-extension="shm_acceleration_signature"],
    [data-unit-visual-extension="shm_time_graphs"],
    [data-unit-visual-extension="velocity_displacement_loop"],
    [data-unit-visual-extension="shm_synchronised_graphs"],
    [data-unit-visual-extension="shm_energy_exchange"],
    [data-unit-visual-extension="damping_return_types"],
    [data-unit-visual-extension="resonance_response"]
) :is(.ch17-construction.is-dashed, .ch17-cursor) {
    stroke-dasharray: 6 5;
}

:is(
    [data-unit-visual-extension="oscillation_vocabulary"],
    [data-unit-visual-extension="phase_cycle_map"],
    [data-unit-visual-extension="shm_acceleration_signature"],
    [data-unit-visual-extension="shm_time_graphs"],
    [data-unit-visual-extension="velocity_displacement_loop"],
    [data-unit-visual-extension="shm_synchronised_graphs"],
    [data-unit-visual-extension="shm_energy_exchange"],
    [data-unit-visual-extension="damping_return_types"],
    [data-unit-visual-extension="resonance_response"]
) :is(.ch17-spring, .ch17-phase-circle) {
    fill: none;
    stroke: var(--ch17-line);
    stroke-width: 1.85;
    stroke-linecap: round;
    stroke-linejoin: round;
    vector-effect: non-scaling-stroke;
}

:is(
    [data-unit-visual-extension="oscillation_vocabulary"],
    [data-unit-visual-extension="phase_cycle_map"],
    [data-unit-visual-extension="shm_acceleration_signature"],
    [data-unit-visual-extension="shm_time_graphs"],
    [data-unit-visual-extension="velocity_displacement_loop"],
    [data-unit-visual-extension="shm_synchronised_graphs"],
    [data-unit-visual-extension="shm_energy_exchange"],
    [data-unit-visual-extension="damping_return_types"],
    [data-unit-visual-extension="resonance_response"]
) .ch17-object {
    fill: var(--ch17-surface-strong);
    stroke: var(--ch17-primary);
    stroke-width: 2;
    vector-effect: non-scaling-stroke;
}

:is(
    [data-unit-visual-extension="oscillation_vocabulary"],
    [data-unit-visual-extension="phase_cycle_map"],
    [data-unit-visual-extension="shm_acceleration_signature"],
    [data-unit-visual-extension="shm_time_graphs"],
    [data-unit-visual-extension="velocity_displacement_loop"],
    [data-unit-visual-extension="shm_synchronised_graphs"],
    [data-unit-visual-extension="shm_energy_exchange"],
    [data-unit-visual-extension="damping_return_types"],
    [data-unit-visual-extension="resonance_response"]
) :is(.ch17-curve, .ch17-vector, .ch17-cycle-route) {
    fill: none;
    stroke: var(--ch17-primary);
    stroke-width: 2.35;
    stroke-linecap: round;
    stroke-linejoin: round;
    vector-effect: non-scaling-stroke;
}

:is(
    [data-unit-visual-extension="oscillation_vocabulary"],
    [data-unit-visual-extension="phase_cycle_map"],
    [data-unit-visual-extension="shm_acceleration_signature"],
    [data-unit-visual-extension="shm_time_graphs"],
    [data-unit-visual-extension="velocity_displacement_loop"],
    [data-unit-visual-extension="shm_synchronised_graphs"],
    [data-unit-visual-extension="shm_energy_exchange"],
    [data-unit-visual-extension="damping_return_types"],
    [data-unit-visual-extension="resonance_response"]
) :is(.ch17-curve.is-secondary, .ch17-vector.is-secondary, .ch17-cycle-route.is-return) {
    stroke: var(--ch17-secondary);
}

:is(
    [data-unit-visual-extension="oscillation_vocabulary"],
    [data-unit-visual-extension="phase_cycle_map"],
    [data-unit-visual-extension="shm_acceleration_signature"],
    [data-unit-visual-extension="shm_time_graphs"],
    [data-unit-visual-extension="velocity_displacement_loop"],
    [data-unit-visual-extension="shm_synchronised_graphs"],
    [data-unit-visual-extension="shm_energy_exchange"],
    [data-unit-visual-extension="damping_return_types"],
    [data-unit-visual-extension="resonance_response"]
) .ch17-curve.is-tertiary {
    stroke: var(--ch17-tertiary);
}

:is(
    [data-unit-visual-extension="oscillation_vocabulary"],
    [data-unit-visual-extension="phase_cycle_map"],
    [data-unit-visual-extension="shm_acceleration_signature"],
    [data-unit-visual-extension="shm_time_graphs"],
    [data-unit-visual-extension="velocity_displacement_loop"],
    [data-unit-visual-extension="shm_synchronised_graphs"],
    [data-unit-visual-extension="shm_energy_exchange"],
    [data-unit-visual-extension="damping_return_types"],
    [data-unit-visual-extension="resonance_response"]
) .ch17-curve.is-total {
    stroke: var(--ch17-ink);
    stroke-width: 2.1;
}

:is(
    [data-unit-visual-extension="oscillation_vocabulary"],
    [data-unit-visual-extension="phase_cycle_map"],
    [data-unit-visual-extension="shm_acceleration_signature"],
    [data-unit-visual-extension="shm_time_graphs"],
    [data-unit-visual-extension="velocity_displacement_loop"],
    [data-unit-visual-extension="shm_synchronised_graphs"],
    [data-unit-visual-extension="shm_energy_exchange"],
    [data-unit-visual-extension="damping_return_types"],
    [data-unit-visual-extension="resonance_response"]
) .ch17-curve.is-muted {
    opacity: 0.24;
}

:is(
    [data-unit-visual-extension="oscillation_vocabulary"],
    [data-unit-visual-extension="phase_cycle_map"],
    [data-unit-visual-extension="shm_acceleration_signature"],
    [data-unit-visual-extension="shm_time_graphs"],
    [data-unit-visual-extension="velocity_displacement_loop"],
    [data-unit-visual-extension="shm_synchronised_graphs"],
    [data-unit-visual-extension="shm_energy_exchange"],
    [data-unit-visual-extension="damping_return_types"],
    [data-unit-visual-extension="resonance_response"]
) .ch17-curve.is-guide {
    stroke: var(--ch17-line);
    stroke-width: 1.25;
    stroke-dasharray: 5 5;
    opacity: 0.46;
}

:is(
    [data-unit-visual-extension="oscillation_vocabulary"],
    [data-unit-visual-extension="phase_cycle_map"],
    [data-unit-visual-extension="shm_acceleration_signature"],
    [data-unit-visual-extension="shm_time_graphs"],
    [data-unit-visual-extension="velocity_displacement_loop"],
    [data-unit-visual-extension="shm_synchronised_graphs"],
    [data-unit-visual-extension="shm_energy_exchange"],
    [data-unit-visual-extension="damping_return_types"],
    [data-unit-visual-extension="resonance_response"]
) .ch17-arrowhead {
    fill: none;
    stroke: var(--ch17-primary);
    stroke-width: 1.45;
    stroke-linecap: round;
    stroke-linejoin: round;
}

:is(
    [data-unit-visual-extension="oscillation_vocabulary"],
    [data-unit-visual-extension="phase_cycle_map"],
    [data-unit-visual-extension="shm_acceleration_signature"],
    [data-unit-visual-extension="shm_time_graphs"],
    [data-unit-visual-extension="velocity_displacement_loop"],
    [data-unit-visual-extension="shm_synchronised_graphs"],
    [data-unit-visual-extension="shm_energy_exchange"],
    [data-unit-visual-extension="damping_return_types"],
    [data-unit-visual-extension="resonance_response"]
) .ch17-arrowhead.is-secondary {
    stroke: var(--ch17-secondary);
}

:is(
    [data-unit-visual-extension="oscillation_vocabulary"],
    [data-unit-visual-extension="phase_cycle_map"],
    [data-unit-visual-extension="shm_acceleration_signature"],
    [data-unit-visual-extension="shm_time_graphs"],
    [data-unit-visual-extension="velocity_displacement_loop"],
    [data-unit-visual-extension="shm_synchronised_graphs"],
    [data-unit-visual-extension="shm_energy_exchange"],
    [data-unit-visual-extension="damping_return_types"],
    [data-unit-visual-extension="resonance_response"]
) .ch17-centre-point {
    fill: var(--ch17-ink);
    stroke: none;
}

:is(
    [data-unit-visual-extension="oscillation_vocabulary"],
    [data-unit-visual-extension="phase_cycle_map"],
    [data-unit-visual-extension="shm_acceleration_signature"],
    [data-unit-visual-extension="shm_time_graphs"],
    [data-unit-visual-extension="velocity_displacement_loop"],
    [data-unit-visual-extension="shm_synchronised_graphs"],
    [data-unit-visual-extension="shm_energy_exchange"],
    [data-unit-visual-extension="damping_return_types"],
    [data-unit-visual-extension="resonance_response"]
) .ch17-point {
    fill: #fff;
    stroke: var(--ch17-primary);
    stroke-width: 2;
    vector-effect: non-scaling-stroke;
}

:is(
    [data-unit-visual-extension="oscillation_vocabulary"],
    [data-unit-visual-extension="phase_cycle_map"],
    [data-unit-visual-extension="shm_acceleration_signature"],
    [data-unit-visual-extension="shm_time_graphs"],
    [data-unit-visual-extension="velocity_displacement_loop"],
    [data-unit-visual-extension="shm_synchronised_graphs"],
    [data-unit-visual-extension="shm_energy_exchange"],
    [data-unit-visual-extension="damping_return_types"],
    [data-unit-visual-extension="resonance_response"]
) :is(.ch17-point.is-selected, .ch17-point.is-primary) {
    fill: var(--ch17-primary);
    stroke: #fff;
}

:is(
    [data-unit-visual-extension="oscillation_vocabulary"],
    [data-unit-visual-extension="phase_cycle_map"],
    [data-unit-visual-extension="shm_acceleration_signature"],
    [data-unit-visual-extension="shm_time_graphs"],
    [data-unit-visual-extension="velocity_displacement_loop"],
    [data-unit-visual-extension="shm_synchronised_graphs"],
    [data-unit-visual-extension="shm_energy_exchange"],
    [data-unit-visual-extension="damping_return_types"],
    [data-unit-visual-extension="resonance_response"]
) .ch17-point.is-secondary {
    fill: var(--ch17-secondary);
    stroke: #fff;
}

:is(
    [data-unit-visual-extension="oscillation_vocabulary"],
    [data-unit-visual-extension="phase_cycle_map"],
    [data-unit-visual-extension="shm_acceleration_signature"],
    [data-unit-visual-extension="shm_time_graphs"],
    [data-unit-visual-extension="velocity_displacement_loop"],
    [data-unit-visual-extension="shm_synchronised_graphs"],
    [data-unit-visual-extension="shm_energy_exchange"],
    [data-unit-visual-extension="damping_return_types"],
    [data-unit-visual-extension="resonance_response"]
) .ch17-point.is-tertiary {
    fill: var(--ch17-tertiary);
    stroke: #fff;
}

:is(
    [data-unit-visual-extension="oscillation_vocabulary"],
    [data-unit-visual-extension="phase_cycle_map"],
    [data-unit-visual-extension="shm_acceleration_signature"],
    [data-unit-visual-extension="shm_time_graphs"],
    [data-unit-visual-extension="velocity_displacement_loop"],
    [data-unit-visual-extension="shm_synchronised_graphs"],
    [data-unit-visual-extension="shm_energy_exchange"],
    [data-unit-visual-extension="damping_return_types"],
    [data-unit-visual-extension="resonance_response"]
) :is(.ch17-motion-point, .ch17-point.is-steady-target) {
    paint-order: stroke;
    stroke-width: 2.4;
}

:is(
    [data-unit-visual-extension="oscillation_vocabulary"],
    [data-unit-visual-extension="phase_cycle_map"],
    [data-unit-visual-extension="shm_acceleration_signature"],
    [data-unit-visual-extension="shm_time_graphs"],
    [data-unit-visual-extension="velocity_displacement_loop"],
    [data-unit-visual-extension="shm_synchronised_graphs"],
    [data-unit-visual-extension="shm_energy_exchange"],
    [data-unit-visual-extension="damping_return_types"],
    [data-unit-visual-extension="resonance_response"]
) .ch17-point.is-steady-target {
    fill: #fff;
    stroke: var(--ch17-secondary);
}

:is(
    [data-unit-visual-extension="oscillation_vocabulary"],
    [data-unit-visual-extension="phase_cycle_map"],
    [data-unit-visual-extension="shm_acceleration_signature"],
    [data-unit-visual-extension="shm_time_graphs"],
    [data-unit-visual-extension="velocity_displacement_loop"],
    [data-unit-visual-extension="shm_synchronised_graphs"],
    [data-unit-visual-extension="shm_energy_exchange"],
    [data-unit-visual-extension="damping_return_types"],
    [data-unit-visual-extension="resonance_response"]
) .ch17-energy-bar {
    fill: rgb(8 127 116 / 0.22);
    stroke: var(--ch17-primary);
    stroke-width: 1.3;
    vector-effect: non-scaling-stroke;
}

:is(
    [data-unit-visual-extension="oscillation_vocabulary"],
    [data-unit-visual-extension="phase_cycle_map"],
    [data-unit-visual-extension="shm_acceleration_signature"],
    [data-unit-visual-extension="shm_time_graphs"],
    [data-unit-visual-extension="velocity_displacement_loop"],
    [data-unit-visual-extension="shm_synchronised_graphs"],
    [data-unit-visual-extension="shm_energy_exchange"],
    [data-unit-visual-extension="damping_return_types"],
    [data-unit-visual-extension="resonance_response"]
) .ch17-energy-bar.is-potential {
    fill: rgb(200 103 43 / 0.2);
    stroke: var(--ch17-secondary);
}

:is(
    [data-unit-visual-extension="oscillation_vocabulary"],
    [data-unit-visual-extension="phase_cycle_map"],
    [data-unit-visual-extension="shm_acceleration_signature"],
    [data-unit-visual-extension="shm_time_graphs"],
    [data-unit-visual-extension="velocity_displacement_loop"],
    [data-unit-visual-extension="shm_synchronised_graphs"],
    [data-unit-visual-extension="shm_energy_exchange"],
    [data-unit-visual-extension="damping_return_types"],
    [data-unit-visual-extension="resonance_response"]
) .ch17-energy-bar.is-total {
    fill: rgb(23 51 61 / 0.14);
    stroke: var(--ch17-ink);
}

:is(
    [data-unit-visual-extension="oscillation_vocabulary"],
    [data-unit-visual-extension="phase_cycle_map"],
    [data-unit-visual-extension="shm_acceleration_signature"],
    [data-unit-visual-extension="shm_time_graphs"],
    [data-unit-visual-extension="velocity_displacement_loop"],
    [data-unit-visual-extension="shm_synchronised_graphs"],
    [data-unit-visual-extension="shm_energy_exchange"],
    [data-unit-visual-extension="damping_return_types"],
    [data-unit-visual-extension="resonance_response"]
) .ch17-small-label {
    fill: var(--ch17-muted);
    paint-order: stroke;
    stroke: rgb(255 255 255 / 0.94);
    stroke-width: 3px;
    stroke-linejoin: round;
    font: 800 0.71rem/1.1 system-ui, sans-serif;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

@media (max-width: 620px) {
    :is(
        [data-unit-visual-extension="oscillation_vocabulary"],
        [data-unit-visual-extension="phase_cycle_map"],
        [data-unit-visual-extension="shm_acceleration_signature"],
        [data-unit-visual-extension="shm_time_graphs"],
        [data-unit-visual-extension="velocity_displacement_loop"],
        [data-unit-visual-extension="shm_synchronised_graphs"],
        [data-unit-visual-extension="shm_energy_exchange"],
        [data-unit-visual-extension="damping_return_types"],
        [data-unit-visual-extension="resonance_response"]
    ) {
        padding: 0.82rem;
        border-radius: 1rem;
    }

    :is(
        [data-unit-visual-extension="oscillation_vocabulary"],
        [data-unit-visual-extension="phase_cycle_map"],
        [data-unit-visual-extension="shm_acceleration_signature"],
        [data-unit-visual-extension="shm_time_graphs"],
        [data-unit-visual-extension="velocity_displacement_loop"],
        [data-unit-visual-extension="shm_synchronised_graphs"],
        [data-unit-visual-extension="shm_energy_exchange"],
        [data-unit-visual-extension="damping_return_types"],
        [data-unit-visual-extension="resonance_response"]
    ) .ch17-visual-controls {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 0.38rem;
    }

    :is(
        [data-unit-visual-extension="oscillation_vocabulary"],
        [data-unit-visual-extension="phase_cycle_map"],
        [data-unit-visual-extension="shm_acceleration_signature"],
        [data-unit-visual-extension="shm_time_graphs"],
        [data-unit-visual-extension="velocity_displacement_loop"],
        [data-unit-visual-extension="shm_synchronised_graphs"],
        [data-unit-visual-extension="shm_energy_exchange"],
        [data-unit-visual-extension="damping_return_types"],
        [data-unit-visual-extension="resonance_response"]
    ) .ch17-visual-control {
        height: 38px;
        padding-inline: 0.34rem;
        font-size: var(--unit-text-meta, 12px);
    }

    .ch17-visual .ch17-timeline {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 0.45rem;
    }

    .ch17-visual .ch17-timeline-button {
        width: 100%;
        min-width: 0;
    }

    .ch17-visual :is(.ch17-timeline-scrub, .ch17-timeline-phase) {
        grid-column: 1 / -1;
    }

    .ch17-visual .ch17-timeline-phase {
        text-align: left;
    }
}

@media (prefers-reduced-motion: reduce) {
    :is(
        [data-unit-visual-extension="oscillation_vocabulary"],
        [data-unit-visual-extension="phase_cycle_map"],
        [data-unit-visual-extension="shm_acceleration_signature"],
        [data-unit-visual-extension="shm_time_graphs"],
        [data-unit-visual-extension="velocity_displacement_loop"],
        [data-unit-visual-extension="shm_synchronised_graphs"],
        [data-unit-visual-extension="shm_energy_exchange"],
        [data-unit-visual-extension="damping_return_types"],
        [data-unit-visual-extension="resonance_response"]
    ) * {
        scroll-behavior: auto !important;
        transition-duration: 0.001ms !important;
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
    }
}