/* Quellenbasiertes Pervaporations-Eingangstestat. Alle lokalen Regeln sind
   unter .pervaporation gescopet und verwenden bestehende Design-Tokens. */
.pervaporation {
    width: 100%;
    min-width: 0;
    max-width: 1240px;
    margin: 0 auto;
}

.pervaporation .elearning-module,
.pervaporation .elearn-card {
    min-width: 0;
}

.pervaporation__intro {
    border-top: var(--border-thick) solid var(--primary-color);
}

.pervaporation .pervaporation__eyebrow {
    margin: 0 0 var(--spacing-xs);
    color: var(--primary-color);
    font-size: var(--text-sm);
    font-weight: 800;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.pervaporation__safety,
.pervaporation__conditioning {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md) var(--spacing-lg);
    border: var(--border-thin) solid var(--warning-200);
    border-left: var(--border-thick) solid var(--warning-600);
    border-radius: var(--radius-lg);
    background: var(--warning-50);
    color: var(--textcolor-80contrast);
}

.pervaporation__source-links {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
}

.pervaporation__nav {
    margin: var(--spacing-xl) 0;
}

.pervaporation .ue-part {
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-lg);
    border: var(--border-thin) solid var(--surface-border-light);
    border-left: var(--border-thick) solid var(--primary-color);
    border-radius: var(--radius-lg);
    background: var(--surface-bg);
}

.pervaporation .ue-part:first-of-type {
    padding-top: var(--spacing-lg);
    border-top: var(--border-thin) solid var(--surface-border-light);
}

.pervaporation .ue-part::before {
    padding: var(--spacing-xs) var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    font-size: var(--text-sm);
    font-weight: 800;
}

.pervaporation__principle-grid {
    display: grid;
    grid-template-columns: minmax(280px, 0.9fr) minmax(420px, 1.1fr);
    gap: var(--spacing-xl);
    align-items: center;
}

.pervaporation__control-label {
    display: flex;
    justify-content: space-between;
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0 var(--spacing-sm);
    color: var(--textcolor-80contrast);
    font-weight: 800;
}

.pervaporation__control-label output {
    color: var(--primary-color);
    font-family: var(--font-mono);
}

.pervaporation__range-shell {
    --pervaporation-temperature-pct: 40%;
    position: relative;
    height: 32px;
}

.pervaporation__range-track {
    position: absolute;
    top: 50%;
    right: 11px;
    left: 11px;
    height: 6px;
    overflow: hidden;
    transform: translateY(-50%);
    border-radius: var(--radius-pill);
    background: var(--surface-border-light);
    pointer-events: none;
}

.pervaporation__range-track::before {
    position: absolute;
    inset: 0 auto 0 0;
    width: var(--pervaporation-temperature-pct);
    border-radius: inherit;
    background: var(--primary-color);
    content: "";
    transition: width var(--transition-fast);
}

.pervaporation .pervaporation__range {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 32px;
    margin: 0;
    appearance: none;
    background: transparent;
    cursor: pointer;
}

.pervaporation .pervaporation__range::-webkit-slider-runnable-track {
    height: 6px;
    background: transparent;
}

.pervaporation .pervaporation__range::-moz-range-track {
    height: 6px;
    background: transparent;
}

.pervaporation .pervaporation__range::-webkit-slider-thumb {
    width: 22px;
    height: 22px;
    /* Die zentrale translate-Regel zentriert bereits auf der 6-px-Bahn. */
    margin-top: 0;
    appearance: none;
    border: var(--border-base) solid var(--neutrals-0);
    border-radius: var(--radius-pill);
    background: var(--primary-color);
    box-shadow: var(--shadow-sm);
}

.pervaporation .pervaporation__range::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border: var(--border-base) solid var(--neutrals-0);
    border-radius: var(--radius-pill);
    background: var(--primary-color);
    box-shadow: var(--shadow-sm);
}

.pervaporation .pervaporation__range:focus-visible {
    outline: none;
}

.pervaporation .pervaporation__range:focus-visible::-webkit-slider-thumb {
    box-shadow: 0 0 0 5px rgba(var(--primary-rgb), 0.2), var(--shadow-sm);
}

.pervaporation .pervaporation__range:focus-visible::-moz-range-thumb {
    box-shadow: 0 0 0 5px rgba(var(--primary-rgb), 0.2), var(--shadow-sm);
}

.pervaporation__pressure-presets {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.pervaporation__pressure-presets button {
    min-height: 42px;
    border: var(--border-base) solid rgba(var(--primary-rgb), 0.24);
    border-radius: var(--radius-lg);
    background: var(--neutrals-0);
    color: var(--primary-color);
    font-family: var(--font-mono);
    font-weight: 800;
    cursor: pointer;
    transition: border-color var(--transition-fast), background var(--transition-fast), box-shadow var(--transition-fast);
}

.pervaporation__pressure-presets button:hover,
.pervaporation__pressure-presets button:focus-visible,
.pervaporation__pressure-presets button.is-active {
    border-color: var(--primary-color);
    background: var(--primary-tint);
    box-shadow: var(--shadow-sm);
    outline: none;
}

.pervaporation .pervaporation__trend {
    min-height: 2.8em;
    margin: var(--spacing-sm) 0 0;
    color: var(--textcolor-50contrast);
    font-size: var(--text-sm);
}

.pervaporation-stage {
    width: 100%;
    min-width: 0;
    overflow: hidden;
    padding: var(--spacing-md);
    border: var(--border-thin) solid var(--surface-border-light);
    border-radius: var(--radius-lg);
    background: var(--gradient-card-subtle);
    box-shadow: var(--shadow-md);
}

.pervaporation-stage svg {
    display: block;
    width: 100%;
    height: auto;
}

.pervaporation-stage__base,
.pervaporation__scheme-base {
    fill: none;
    stroke: var(--surface-border-light);
    stroke-width: 3;
    stroke-linecap: round;
}

.pervaporation-stage__pipe {
    fill: none;
    stroke: var(--textcolor-fullcontrast);
    stroke-width: 9;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.pervaporation-stage__pipe--vapour {
    stroke: rgba(var(--chart-orange-rgb), 0.25);
}

.pervaporation-stage__liquid-line,
.pervaporation__scheme-liquid {
    fill: none;
    stroke: rgb(var(--chart-teal-rgb));
    stroke-width: 5;
    stroke-dasharray: 12 8;
    stroke-linecap: round;
    animation: pervaporation-liquid-flow 1.6s linear infinite;
}

.pervaporation-stage__vapour-line,
.pervaporation__scheme-vapour {
    fill: none;
    stroke: rgb(var(--chart-orange-rgb));
    stroke-width: var(--pervaporation-vapour-width, 4);
    stroke-dasharray: 10 7;
    stroke-linecap: round;
    filter: drop-shadow(0 0 var(--pervaporation-vapour-glow, 0) rgba(var(--chart-orange-rgb), 0.48));
    transition: stroke-width var(--transition-base), opacity var(--transition-base), filter var(--transition-base);
    animation: pervaporation-vapour-flow 1.7s linear infinite;
}

.pervaporation #pervaporationLiquidArrow path,
.pervaporation #pervaporationSchemeArrow path {
    fill: rgb(var(--chart-teal-rgb));
}

.pervaporation #pervaporationVapourArrow path,
.pervaporation #pervaporationSchemeVapourArrow path {
    fill: rgb(var(--chart-orange-rgb));
}

.pervaporation-stage__vessel > rect:first-child,
.pervaporation-stage__module-shell,
.pervaporation-stage__condenser > rect:first-child,
.pervaporation-stage__pump circle {
    fill: rgba(var(--neutrals-0-rgb), 0.88);
    stroke: var(--primary-color);
    stroke-width: 3;
}

.pervaporation-stage__liquid-fill,
.pervaporation-stage__feed-chamber {
    fill: rgba(var(--chart-teal-rgb), var(--pervaporation-feed-fill-alpha, 0.18));
    stroke: rgb(var(--chart-teal-rgb));
    stroke-width: var(--pervaporation-feed-border-width, 2);
    filter: drop-shadow(0 0 var(--pervaporation-feed-glow, 0) rgba(var(--chart-teal-rgb), 0.42));
    transition: fill var(--transition-base), stroke-width var(--transition-base), filter var(--transition-base);
}

.pervaporation-stage__vapour-chamber {
    fill: rgba(var(--chart-orange-rgb), var(--pervaporation-vacuum-fill-alpha, 0.11));
    stroke: rgba(var(--chart-orange-rgb), var(--pervaporation-vacuum-border-alpha, 0.52));
    stroke-width: var(--pervaporation-vacuum-border-width, 2);
    filter: drop-shadow(0 0 var(--pervaporation-vacuum-glow, 0) rgba(var(--chart-orange-rgb), 0.38));
    transition: fill var(--transition-base), stroke var(--transition-base), stroke-width var(--transition-base), filter var(--transition-base);
}

.pervaporation-stage__agitator,
.pervaporation-stage__flange {
    fill: none;
    stroke: var(--textcolor-50contrast);
    stroke-width: 3;
    stroke-linecap: round;
}

.pervaporation-stage__pump-gear,
.pervaporation__scheme-pump-gear {
    fill: var(--primary-tint) !important;
    stroke: var(--primary-color) !important;
    stroke-width: 2 !important;
}

.pervaporation-stage__tag {
    fill: var(--primary-tint);
    stroke: rgba(var(--primary-rgb), 0.3);
    stroke-width: 1.5;
}

.pervaporation-stage__tag-text {
    fill: var(--primary-color);
    font-family: var(--font-mono);
    font-size: 13px;
    font-weight: 900;
    text-anchor: middle;
}

.pervaporation-stage__membrane {
    fill: none;
    stroke: var(--primary-color);
    stroke-width: 9;
    stroke-dasharray: 3 7;
}

.pervaporation-stage__coil {
    fill: none;
    stroke: var(--primary-color);
    stroke-width: 4;
    stroke-linecap: round;
}

.pervaporation-stage__condensate {
    fill: rgba(var(--chart-orange-rgb), 0.34);
    stroke: none;
}

.pervaporation-stage__liquid-particles circle {
    fill: rgb(var(--chart-teal-rgb));
    opacity: 0.66;
    transform-box: fill-box;
    transform-origin: center;
    animation: pervaporation-liquid-particle 2.2s linear infinite;
}

.pervaporation-stage__liquid-particles circle:nth-child(2n) {
    animation-delay: -1.1s;
}

.pervaporation-stage__liquid-particles circle:nth-child(3n) {
    animation-delay: -0.55s;
}

.pervaporation-stage__molecules circle {
    fill: rgba(var(--chart-orange-rgb), 0.26);
    stroke: rgb(var(--chart-orange-rgb));
    stroke-width: 2;
    opacity: var(--pervaporation-particle-opacity, 0.75);
    transform-box: fill-box;
    transform-origin: center;
    transition: opacity var(--transition-base);
    animation: pervaporation-particle 2.4s linear infinite;
}

.pervaporation-stage__molecules circle:nth-child(2n) {
    animation-delay: -1.2s;
}

.pervaporation-stage__molecules circle:nth-child(3n) {
    animation-delay: -0.6s;
}

.pervaporation-stage__labels {
    fill: var(--textcolor-fullcontrast);
    font-family: var(--font-ui);
    font-size: 14px;
    font-weight: 800;
}

.pervaporation-stage__readouts {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--spacing-sm);
}

.pervaporation-stage__readouts > div,
.pervaporation__random-data > div {
    display: grid;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm);
    border: var(--border-thin) solid var(--surface-border-light);
    border-radius: var(--radius-md);
    background: rgba(var(--neutrals-0-rgb), 0.84);
    text-align: center;
}

.pervaporation-stage__readouts span,
.pervaporation__random-data span {
    color: var(--textcolor-50contrast);
    font-size: var(--text-xs);
    font-weight: 700;
}

.pervaporation-stage__readouts strong,
.pervaporation__random-data strong {
    color: var(--primary-color);
    font-family: var(--font-mono);
}

.pervaporation-stage > p {
    margin: var(--spacing-sm) 0 0;
    color: var(--textcolor-50contrast);
    font-size: var(--text-xs);
    text-align: center;
}

@keyframes pervaporation-liquid-flow {
    to { stroke-dashoffset: -40; }
}

@keyframes pervaporation-vapour-flow {
    to { stroke-dashoffset: -34; }
}

@keyframes pervaporation-particle {
    0% { opacity: 0; transform: translate(-8px, 5px) scale(var(--pervaporation-particle-scale, 1)); }
    16%, 78% { opacity: var(--pervaporation-particle-opacity, 0.75); }
    100% { opacity: 0; transform: translate(12px, -7px) scale(var(--pervaporation-particle-scale, 1)); }
}

@keyframes pervaporation-liquid-particle {
    0% { opacity: 0; transform: translateX(-4px); }
    16%, 78% { opacity: 0.66; }
    100% { opacity: 0; transform: translateX(10px); }
}

.pervaporation__transport,
.pervaporation__influences {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.pervaporation__transport article,
.pervaporation__influences > div {
    padding: var(--spacing-lg);
    border: var(--border-thin) solid var(--surface-border-light);
    border-radius: var(--radius-lg);
    background: var(--gradient-card-subtle);
}

.pervaporation__transport article > span {
    display: inline-grid;
    width: 2rem;
    height: 2rem;
    place-items: center;
    border-radius: var(--radius-pill);
    background: var(--primary-color);
    color: var(--neutrals-0);
    font-family: var(--font-mono);
    font-weight: 900;
}

.pervaporation__transport h3 {
    margin: var(--spacing-sm) 0;
    font-size: var(--text-lg);
}

.pervaporation__transport p {
    margin: 0;
}

.pervaporation__membrane-types {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--spacing-md);
}

.pervaporation__membrane-types > div {
    display: grid;
    gap: var(--spacing-xs);
    padding: var(--spacing-md);
    border-left: var(--border-thick) solid rgb(var(--chart-teal-rgb));
    border-radius: var(--radius-md);
    background: rgba(var(--chart-teal-rgb), 0.08);
}

.pervaporation__influences > div {
    display: grid;
    gap: var(--spacing-xs);
    text-align: center;
}

.pervaporation__influences span {
    color: rgb(var(--chart-orange-rgb));
    font-family: var(--font-mono);
    font-size: var(--text-2xl);
    font-weight: 900;
}

.pervaporation__influences small {
    color: var(--textcolor-50contrast);
}

.pervaporation__formula {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-xl);
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-lg);
    border: var(--border-thin) solid rgba(var(--primary-rgb), 0.24);
    border-radius: var(--radius-lg);
    background: var(--primary-tint);
    font-size: var(--text-xl);
}

.pervaporation__random-data {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--spacing-sm);
    margin: var(--spacing-lg) 0;
}

.pervaporation .pervaporation__property-note {
    margin: calc(var(--spacing-sm) * -1) 0 var(--spacing-lg);
    color: var(--textcolor-50contrast);
    font-size: var(--text-sm);
}

.pervaporation__plant-scheme {
    overflow-x: auto;
    margin: var(--spacing-lg) 0;
    border: var(--border-thin) solid var(--surface-border-light);
    border-radius: var(--radius-lg);
    background: var(--gradient-card-subtle);
    box-shadow: var(--shadow-sm);
}

.pervaporation__plant-scheme svg {
    display: block;
    width: 100%;
    min-width: 760px;
    height: auto;
}

.pervaporation__plant-scheme text {
    fill: var(--textcolor-fullcontrast);
    font-family: var(--font-mono);
    font-size: 17px;
    font-weight: 800;
    text-anchor: middle;
}

.pervaporation__scheme-zone rect {
    stroke-width: 1.5;
}

.pervaporation__scheme-zone text {
    font-family: var(--font-ui);
    font-size: 16px;
    text-anchor: start;
}

.pervaporation__scheme-zone--liquid rect {
    fill: rgba(var(--chart-teal-rgb), 0.05);
    stroke: rgba(var(--chart-teal-rgb), 0.3);
}

.pervaporation__scheme-zone--liquid text { fill: rgb(var(--chart-teal-rgb)); }

.pervaporation__scheme-zone--permeate rect {
    fill: rgba(var(--chart-orange-rgb), 0.05);
    stroke: rgba(var(--chart-orange-rgb), 0.3);
}

.pervaporation__scheme-zone--permeate text { fill: rgb(var(--chart-orange-rgb)); }

.pervaporation__scheme-vessel > rect,
.pervaporation__scheme-pump circle,
.pervaporation__scheme-module > rect:first-child,
.pervaporation__scheme-condenser > rect,
.pervaporation__scheme-collector > path:first-child,
.pervaporation__scheme-thermostat > rect,
.pervaporation__scheme-pressure circle,
.pervaporation__scheme-vacuum-pump circle {
    fill: var(--neutrals-0);
    stroke: var(--primary-color);
    stroke-width: 3;
}

.pervaporation__scheme-vessel > path:first-of-type,
.pervaporation__scheme-module > rect:nth-of-type(2) {
    fill: rgba(var(--chart-teal-rgb), 0.18);
    stroke: rgb(var(--chart-teal-rgb));
    stroke-width: 2;
}

.pervaporation__scheme-module > rect:nth-of-type(3) {
    fill: rgba(var(--chart-orange-rgb), 0.1);
    stroke: rgba(var(--chart-orange-rgb), 0.5);
    stroke-width: 2;
}

.pervaporation__scheme-detail {
    fill: none;
    stroke: var(--textcolor-50contrast);
    stroke-width: 3;
    stroke-linecap: round;
}

.pervaporation__scheme-service {
    fill: none;
    stroke: var(--primary-color);
    stroke-width: 3;
    stroke-linecap: round;
    stroke-linejoin: round;
    opacity: 0.62;
}

.pervaporation__scheme-thermostat > path {
    fill: none;
    stroke: var(--primary-color);
    stroke-width: 3;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.pervaporation__scheme-membrane {
    fill: none;
    stroke: var(--primary-color);
    stroke-width: 8;
    stroke-dasharray: 3 6;
}

.pervaporation__scheme-coil {
    fill: none;
    stroke: var(--primary-color);
    stroke-width: 4;
    stroke-linecap: round;
}

.pervaporation__scheme-condensate {
    fill: rgba(var(--chart-orange-rgb), 0.35);
    stroke: none;
}

.pervaporation__scheme-caption {
    font-family: var(--font-ui) !important;
    font-size: 13px !important;
}

.pervaporation__scheme-flow-label {
    fill: rgb(var(--chart-teal-rgb)) !important;
    font-family: var(--font-ui) !important;
    font-size: 13px !important;
}

.pervaporation__scheme-flow-label--vapour {
    fill: rgb(var(--chart-orange-rgb)) !important;
}

.pervaporation__scheme-pressure circle,
.pervaporation__scheme-vacuum-pump-motor {
    fill: var(--primary-tint);
    stroke-width: 2;
}

.pervaporation__scheme-pressure path,
.pervaporation__scheme-vacuum-pump-shaft,
.pervaporation__scheme-vacuum-pump-diaphragm {
    fill: none;
    stroke: var(--primary-color);
    stroke-width: 3;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.pervaporation__scheme-pressure text,
.pervaporation__scheme-vacuum-pump-motor-label {
    font-size: 12px;
}

.pervaporation__scheme-legend .pervaporation__scheme-liquid,
.pervaporation__scheme-legend .pervaporation__scheme-vapour {
    animation: none;
}

.pervaporation__scheme-legend text {
    font-family: var(--font-ui);
    font-size: 14px;
    text-anchor: start;
}

.pervaporation .ue-match__zones {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.pervaporation-pid__task {
    display: flex;
    justify-content: space-between;
    gap: var(--spacing-md);
    align-items: center;
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    background: var(--primary-tint);
}

.pervaporation .pervaporation-pid__task strong {
    color: var(--primary-color);
}

.pervaporation-pid__task span {
    flex: 0 0 auto;
    color: var(--textcolor-50contrast);
    font-size: var(--text-sm);
    font-weight: 800;
}

.pervaporation .pervaporation-pid__feedback {
    min-height: 1.6em;
    color: var(--textcolor-50contrast);
}

.pervaporation-pid__feedback.is-success { color: var(--success-600); }
.pervaporation-pid__feedback.is-error { color: var(--error-600); }

.pervaporation-pid__scroll {
    width: 100%;
    min-width: 0;
    max-width: 100%;
    overflow-x: auto;
    border: var(--border-thin) solid var(--surface-border-light);
    border-radius: var(--radius-lg);
    background: var(--neutrals-0);
    box-shadow: var(--shadow-md);
    overscroll-behavior-inline: contain;
}

.pervaporation-pid__canvas {
    position: relative;
    width: 100%;
    min-width: 980px;
}

.pervaporation-pid__canvas img {
    display: block;
    width: 100%;
    height: auto;
}

.pervaporation-pid__connectors {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.pervaporation-pid__connectors line {
    stroke: var(--primary-color);
    stroke-width: 2;
    stroke-linecap: round;
    marker-end: url(#pervaporationPidArrow);
}

.pervaporation-pid__connectors marker path { fill: var(--primary-color); }

.pervaporation-pid__target {
    position: absolute;
    min-width: 44px;
    min-height: 34px;
    padding: 0.3rem 0.45rem;
    transform: translate(-50%, -50%);
    border: var(--border-base) solid var(--primary-color);
    border-radius: var(--radius-pill);
    background: rgba(var(--neutrals-0-rgb), 0.95);
    box-shadow: var(--shadow-sm);
    color: var(--primary-color);
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    font-weight: 900;
    cursor: pointer;
}

body.neutral0color-onbackground .pervaporation .pervaporation-pid__target { color: var(--primary-color); }

.pervaporation-pid__target:hover,
.pervaporation-pid__target:focus-visible {
    box-shadow: 0 0 0 5px rgba(var(--primary-rgb), 0.22), var(--shadow-md);
    outline: none;
}

.pervaporation-pid__target.is-confirmed {
    border-color: var(--success-600);
    background: var(--success-600);
    color: var(--neutrals-0);
}

body.neutral0color-onbackground .pervaporation .pervaporation-pid__target.is-confirmed { color: var(--neutrals-0); }

.pervaporation-pid__target.is-wrong {
    border-color: var(--error-600);
    animation: pervaporation-shake 0.35s ease;
}

.pervaporation-pid__target--b1 { left: 41.8%; top: 41.3%; }
.pervaporation-pid__target--p1 { left: 52.1%; top: 63.3%; }
.pervaporation-pid__target--f1 { left: 58.9%; top: 10.7%; }
.pervaporation-pid__target--w1 { left: 78.4%; top: 36.7%; }
.pervaporation-pid__target--x1 { left: 80.1%; top: 55.6%; }
.pervaporation-pid__target--p2 { left: 86.2%; top: 83.7%; }
.pervaporation-pid__target--b2 { left: 8.5%; top: 65.3%; }
.pervaporation-pid__target--b3 { left: 36.2%; top: 86.7%; }
.pervaporation-pid__target--v11 { left: 87.9%; top: 38.8%; }

@keyframes pervaporation-shake {
    25% { transform: translate(calc(-50% - 4px), -50%); }
    75% { transform: translate(calc(-50% + 4px), -50%); }
}

.pervaporation-pid__question.is-locked {
    opacity: 0.68;
}

.pervaporation__procedure-note {
    margin-top: var(--spacing-lg);
}

.pervaporation__procedure-note summary {
    color: var(--primary-color);
    font-weight: 800;
    cursor: pointer;
}

.pervaporation__export-lock {
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-md);
    border: var(--border-thin) solid var(--warning-200);
    border-radius: var(--radius-md);
    background: var(--warning-50);
    color: var(--warning-800);
    font-weight: 800;
}

.pervaporation__export-lock.is-unlocked {
    border-color: var(--success-200);
    background: var(--success-50);
    color: var(--success-800);
}

@media (max-width: 900px) {
    .pervaporation__principle-grid { grid-template-columns: 1fr; }
    .pervaporation__transport,
    .pervaporation__influences { grid-template-columns: 1fr; }
    .pervaporation .ue-match__zones { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 620px) {
    .pervaporation__source-links,
    .pervaporation__membrane-types,
    .pervaporation-stage__readouts,
    .pervaporation__random-data,
    .pervaporation .ue-match__zones { grid-template-columns: 1fr; }
    .pervaporation__source-links { display: grid; }
    .pervaporation .ue-part { padding: var(--spacing-md); }
    .pervaporation-pid__task { align-items: flex-start; }
    .pervaporation-stage { padding: var(--spacing-sm); }
    .pervaporation-stage__labels { font-size: 16px; }
    .pervaporation-stage__tag-text { font-size: 15px; }
}

@media (prefers-reduced-motion: reduce) {
    .pervaporation-stage__liquid-line,
    .pervaporation-stage__vapour-line,
    .pervaporation-stage__liquid-particles circle,
    .pervaporation-stage__molecules circle,
    .pervaporation__scheme-liquid,
    .pervaporation__scheme-vapour {
        animation: none;
    }
}