/* Animated, conceptual introduction to balanced mains for science pages. */
.q-balanced-mains-animation {
  --q-balanced-mains-surface: #F7F9F8;
  --q-balanced-mains-panel: #FFFFFF;
  --q-balanced-mains-text: #113D36;
  --q-balanced-mains-muted: #486743;
  --q-balanced-mains-line: rgba(17, 61, 54, 0.22);
  --q-balanced-mains-rail: #A9BBC0;
  --q-balanced-mains-supply: #5C7EC8;
  --q-balanced-mains-noise: #6F9360;
  box-sizing: border-box;
  width: min(1280px, 100%);
  margin: 0 auto;
  padding: clamp(22px, 3vw, 42px);
  border: 1px solid var(--q-balanced-mains-line);
  background: linear-gradient(145deg, rgba(213, 226, 234, 0.55), var(--q-balanced-mains-surface) 46%, #FFFFFF);
  color: var(--q-balanced-mains-text);
}
.q-balanced-mains-animation.q-balanced-mains-animation--dark {
  --q-balanced-mains-surface: #00040A;
  --q-balanced-mains-panel: #142128;
  --q-balanced-mains-text: #D5E2EA;
  --q-balanced-mains-muted: #A8BEA3;
  --q-balanced-mains-line: rgba(213, 226, 234, 0.22);
  --q-balanced-mains-rail: #A5B7C4;
  --q-balanced-mains-supply: #90A9EB;
  --q-balanced-mains-noise: #9ABC91;
  background: linear-gradient(145deg, #142128, #00040A 62%);
}

.q-balanced-mains-animation__header {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px 28px;
  margin-bottom: clamp(17px, 2.2vw, 28px);
}

.q-balanced-mains-animation__eyebrow,
.q-balanced-mains-animation__key,
.q-balanced-mains-animation__caption {
  margin: 0;
  font-family: "interstate", sans-serif;
}

.q-balanced-mains-animation__eyebrow {
  color: var(--q-balanced-mains-muted);
  font-size: clamp(0.62rem, 0.82vw, 0.75rem);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.q-balanced-mains-animation__key {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  color: var(--q-balanced-mains-muted);
  font-size: clamp(0.64rem, 0.82vw, 0.76rem);
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: 0.055em;
  text-transform: uppercase;
}

.q-balanced-mains-animation__key-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.q-balanced-mains-animation__key-item::before {
  display: block;
  width: 20px;
  height: 0;
  border-top: 2px solid var(--q-balanced-mains-supply);
  content: "";
}
.q-balanced-mains-animation__key-item.q-balanced-mains-animation__key-item--noise::before {
  width: 10px;
  height: 10px;
  border: 0;
  border-radius: 50%;
  background: var(--q-balanced-mains-noise);
}

.q-balanced-mains-animation__diagram {
  width: 100%;
  overflow: hidden;
}

.q-balanced-mains-animation__diagram svg {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
}

.q-balanced-mains-animation__panel {
  fill: var(--q-balanced-mains-panel);
  stroke: var(--q-balanced-mains-line);
  stroke-width: 1.5;
}
.q-balanced-mains-animation__panel.q-balanced-mains-animation__panel--transformer {
  fill: #EEF3F2;
}

.q-balanced-mains-animation--dark .q-balanced-mains-animation__panel--transformer,
.q-balanced-mains-animation--dark .q-balanced-mains-animation__component {
  fill: #172730;
}

.q-balanced-mains-animation__panel-title,
.q-balanced-mains-animation__minor-label,
.q-balanced-mains-animation__rail-label,
.q-balanced-mains-animation__earth-label,
.q-balanced-mains-animation__noise-label,
.q-balanced-mains-animation__pe-label,
.q-balanced-mains-animation__hf-label,
.q-balanced-mains-animation__result-label,
.q-balanced-mains-animation__component-label,
.q-balanced-mains-animation__winding-label {
  fill: var(--q-balanced-mains-text);
  font-family: "interstate", sans-serif;
}

.q-balanced-mains-animation__panel-title {
  font-size: 28px;
  font-weight: 400;
  letter-spacing: -0.01em;
}

.q-balanced-mains-animation__minor-label {
  fill: var(--q-balanced-mains-muted);
  font-size: 18px;
  font-weight: 300;
}

.q-balanced-mains-animation__rail,
.q-balanced-mains-animation__lead {
  fill: none;
  stroke: var(--q-balanced-mains-rail);
  stroke-linecap: round;
}

.q-balanced-mains-animation__rail {
  stroke-width: 8;
}

.q-balanced-mains-animation__lead {
  stroke-width: 6;
}

.q-balanced-mains-animation__transformer-core {
  fill: none;
  stroke: var(--q-balanced-mains-text);
  stroke-width: 10;
}

.q-balanced-mains-animation__winding {
  fill: none;
  stroke: var(--q-balanced-mains-supply);
  stroke-width: 7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.q-balanced-mains-animation__winding--secondary {
  stroke: #7F9BE1;
}

.q-balanced-mains-animation__winding-label {
  fill: var(--q-balanced-mains-muted);
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.q-balanced-mains-animation__tap,
.q-balanced-mains-animation__earth {
  fill: none;
  stroke: var(--q-balanced-mains-muted);
  stroke-width: 4;
  stroke-linecap: round;
}

.q-balanced-mains-animation__earth-label,
.q-balanced-mains-animation__pe-label {
  fill: var(--q-balanced-mains-muted);
  font-size: 16px;
  font-weight: 400;
}

.q-balanced-mains-animation__rail-label {
  fill: var(--q-balanced-mains-supply);
  font-size: 20px;
  font-weight: 500;
}

.q-balanced-mains-animation__component {
  fill: #EEF3F2;
  stroke: var(--q-balanced-mains-supply);
  stroke-width: 3;
}

.q-balanced-mains-animation__component-link {
  fill: none;
  stroke: var(--q-balanced-mains-supply);
  stroke-width: 3;
  stroke-linecap: round;
}

.q-balanced-mains-animation__component-label {
  font-size: 18px;
  font-weight: 400;
}

.q-balanced-mains-animation__noise-path {
  fill: none;
  stroke: var(--q-balanced-mains-noise);
  stroke-width: 2;
  opacity: 0.65;
}
.q-balanced-mains-animation__noise-path.q-balanced-mains-animation__noise-path--secondary {
  opacity: 0.2;
}

.q-balanced-mains-animation__noise-to-earth,
.q-balanced-mains-animation__hf-path,
.q-balanced-mains-animation__noise-to-earth-arrow {
  fill: none;
  stroke: var(--q-balanced-mains-noise);
  stroke-linecap: round;
  stroke-linejoin: round;
}

.q-balanced-mains-animation__noise-to-earth {
  stroke-width: 4;
  stroke-dasharray: 7 10;
  opacity: 0.86;
}

.q-balanced-mains-animation__noise-to-earth-arrow {
  stroke-width: 4;
}

.q-balanced-mains-animation__hf-path {
  stroke-width: 2.5;
  stroke-dasharray: 5 10;
  opacity: 0.44;
}

.q-balanced-mains-animation__hf-label {
  fill: var(--q-balanced-mains-muted);
  font-size: 15px;
  font-weight: 400;
}

.q-balanced-mains-animation__noise-marker {
  fill: var(--q-balanced-mains-noise);
  opacity: 0.86;
}
.q-balanced-mains-animation__noise-marker.q-balanced-mains-animation__noise-marker--residual-one, .q-balanced-mains-animation__noise-marker.q-balanced-mains-animation__noise-marker--residual-two {
  opacity: 0.28;
}

.q-balanced-mains-animation__noise-label,
.q-balanced-mains-animation__result-label {
  fill: var(--q-balanced-mains-muted);
  font-size: 19px;
  font-weight: 300;
}

.q-balanced-mains-animation__arrow {
  fill: none;
  stroke: var(--q-balanced-mains-supply);
  stroke-width: 4;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.q-balanced-mains-animation__caption {
  max-width: 920px;
  margin: clamp(18px, 2.3vw, 27px) auto 0;
  color: var(--q-balanced-mains-muted);
  font-size: clamp(0.8rem, 0.95vw, 0.92rem);
  font-weight: 300;
  line-height: 1.42;
  text-align: center;
}

/* The marks convey changing conditions, not a literal DC current flow. */
.q-balanced-mains-animation--motion .q-balanced-mains-animation__arrow {
  animation: q-balanced-mains-arrow 2.9s linear infinite;
  transform-box: fill-box;
  transform-origin: center;
}

.q-balanced-mains-animation--motion .q-balanced-mains-animation__arrow--two {
  animation-delay: -0.95s;
}

.q-balanced-mains-animation--motion .q-balanced-mains-animation__arrow--three {
  animation-delay: -1.9s;
}

.q-balanced-mains-animation--motion .q-balanced-mains-animation__noise-marker--one {
  animation: q-balanced-mains-noise 3.4s ease-in-out infinite;
}

.q-balanced-mains-animation--motion .q-balanced-mains-animation__noise-marker--two {
  animation: q-balanced-mains-noise 3.4s -1.1s ease-in-out infinite;
}

.q-balanced-mains-animation--motion .q-balanced-mains-animation__noise-marker--three {
  animation: q-balanced-mains-noise 3.4s -2.2s ease-in-out infinite;
}

.q-balanced-mains-animation--motion .q-balanced-mains-animation__noise-marker--four {
  animation: q-balanced-mains-noise 3.4s -2.8s ease-in-out infinite;
}

.q-balanced-mains-animation--motion .q-balanced-mains-animation__noise-marker--residual-one,
.q-balanced-mains-animation--motion .q-balanced-mains-animation__noise-marker--residual-two {
  animation: q-balanced-mains-residual 4.2s ease-in-out infinite;
}

.q-balanced-mains-animation--motion .q-balanced-mains-animation__noise-marker--residual-two {
  animation-delay: -1.7s;
}

.q-balanced-mains-animation--motion .q-balanced-mains-animation__noise-to-earth,
.q-balanced-mains-animation--motion .q-balanced-mains-animation__hf-path {
  animation: q-balanced-mains-noise-path 1.8s linear infinite;
}

@keyframes q-balanced-mains-arrow {
  0% {
    opacity: 0.28;
    transform: translateX(0);
  }
  72% {
    opacity: 1;
  }
  100% {
    opacity: 0.28;
    transform: translateX(104px);
  }
}
@keyframes q-balanced-mains-noise {
  0%, 100% {
    opacity: 0.24;
    transform: translate(0, 0) scale(0.72);
  }
  45% {
    opacity: 1;
    transform: translate(18px, -8px) scale(1.12);
  }
  72% {
    opacity: 0.6;
    transform: translate(32px, 5px) scale(0.82);
  }
}
@keyframes q-balanced-mains-residual {
  0%, 100% {
    opacity: 0.08;
    transform: translate(0, 0) scale(0.8);
  }
  48% {
    opacity: 0.42;
    transform: translate(14px, -4px) scale(1.05);
  }
}
@keyframes q-balanced-mains-noise-path {
  to {
    stroke-dashoffset: -34;
  }
}
@media (prefers-reduced-motion: reduce) {
  .q-balanced-mains-animation--motion .q-balanced-mains-animation__arrow,
  .q-balanced-mains-animation--motion .q-balanced-mains-animation__noise-marker,
  .q-balanced-mains-animation--motion .q-balanced-mains-animation__noise-to-earth,
  .q-balanced-mains-animation--motion .q-balanced-mains-animation__hf-path {
    animation: none;
  }
}
@media (max-width: 767.98px) {
  .q-balanced-mains-animation {
    padding: 17px 14px 20px;
  }
  .q-balanced-mains-animation__header {
    align-items: flex-start;
    flex-direction: column;
    gap: 9px;
  }
  .q-balanced-mains-animation__key {
    gap: 8px 14px;
    font-size: 0.58rem;
  }
  .q-balanced-mains-animation__diagram {
    overflow-x: auto;
    padding-bottom: 4px;
  }
  .q-balanced-mains-animation__diagram svg {
    min-width: 860px;
  }
}