/* SPIN paper page ---------------------------------------------------------- */

.spin-page {
  background: #05070d;
}

.spin-page .light {
  --ink-3: #626b7d;
}

.spin-page :where(a, button, input, select, [tabindex]):focus-visible {
  outline: 3px solid var(--indigo);
  outline-offset: 3px;
}

.spin-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.spin-page main {
  position: relative;
  z-index: 1;
}

.spin-page button,
.spin-page input,
.spin-page select {
  font: inherit;
}

.spin-page button {
  color: inherit;
}

.spin-nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  color: #eef0f7;
  background: rgba(5, 7, 13, 0.78);
  border-bottom: 1px solid rgba(255, 255, 255, 0.065);
  -webkit-backdrop-filter: blur(16px) saturate(125%);
  backdrop-filter: blur(16px) saturate(125%);
}

.spin-nav-inner {
  min-height: 4.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.spin-nav-home,
.spin-nav-links a {
  font-family: var(--mono);
  text-decoration: none;
  letter-spacing: 0.08em;
  transition: color 180ms ease;
}

.spin-nav-home {
  color: var(--ink-2);
  font-size: 0.82rem;
  font-weight: 600;
  white-space: nowrap;
}

.spin-nav-home span {
  color: var(--crimson);
  margin-right: 0.25rem;
}

.spin-nav-links {
  display: flex;
  gap: clamp(0.9rem, 2.2vw, 1.8rem);
}

.spin-nav-links a {
  color: var(--ink-3);
  font-size: 0.76rem;
  font-weight: 500;
  text-transform: uppercase;
}

.spin-nav a:hover {
  color: var(--ink);
}

/* Hero -------------------------------------------------------------------- */

.spin-masthead {
  position: relative;
  z-index: 2;
  min-height: 100svh;
  padding: clamp(8rem, 14vh, 10rem) 0 0;
  color: var(--ink);
  overflow: hidden;
  background:
    radial-gradient(circle at 78% 25%, rgba(125, 141, 255, 0.15), transparent 29rem),
    radial-gradient(circle at 72% 88%, rgba(224, 69, 95, 0.09), transparent 30rem),
    #05070d;
}

.spin-masthead::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(224, 69, 95, 0.65), rgba(125, 141, 255, 0.65), transparent);
}

.spin-masthead-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(25rem, 1.08fr);
  align-items: center;
  gap: clamp(2rem, 6vw, 6rem);
}

.spin-hero-copy {
  grid-column: 1;
  grid-row: 1;
}

.spin-hero-art {
  grid-column: 2;
  grid-row: 1;
}

.spin-hero-copy {
  position: relative;
  z-index: 2;
}

.spin-hero-copy .eyebrow {
  margin-bottom: 1.25rem;
}

.spin-hero-copy .eyebrow b {
  white-space: nowrap;
}

.spin-hero-copy h1 {
  margin: 0 0 1.5rem;
  font-family: var(--display);
  font-size: clamp(5.2rem, 11vw, 9.2rem);
  font-weight: 800;
  line-height: 0.82;
  letter-spacing: -0.07em;
}

.spin-hero-claim {
  max-width: 18ch;
  margin: 0 0 1rem;
  font-family: var(--display);
  font-size: clamp(1.7rem, 3.3vw, 2.55rem);
  font-weight: 650;
  line-height: 1.13;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

.spin-hero-deck {
  max-width: 36rem;
  margin: 0 0 1.5rem;
  color: var(--ink-2);
  font-size: clamp(1rem, 1.45vw, 1.12rem);
  line-height: 1.65;
  text-wrap: pretty;
}

.spin-hero-deck > b,
.spin-expansion b {
  color: var(--ink);
  font-weight: 650;
}

.spin-authors {
  max-width: 43rem;
  margin: 0 0 1.7rem;
  color: var(--ink-3);
  font-size: 0.82rem;
  line-height: 1.7;
}

.spin-authors b {
  color: var(--ink-2);
  font-weight: 600;
}

.spin-hero-links {
  gap: 0.55rem;
}

.spin-hero-links .chip {
  padding: 0.58rem 0.92rem;
}

.spin-hero-links .chip svg {
  width: 1.05rem;
  height: 1.05rem;
  flex: 0 0 auto;
}

.spin-pdf-mark {
  display: inline-grid;
  place-items: center;
  min-width: 1.5rem;
  height: 1.05rem;
  padding-inline: 0.17rem;
  border: 1px solid currentColor;
  border-radius: 2px;
  font-size: 0.48rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  line-height: 1;
}

.spin-hero-links .chip-primary {
  border-color: var(--ink);
  background: var(--ink);
  color: #070910;
}

.spin-hero-links .chip-primary:hover {
  background: #fff;
  color: #05070d;
}

.spin-hero-art {
  position: relative;
  min-height: clamp(27rem, 42vw, 35rem);
  border: 1px solid rgba(255, 255, 255, 0.075);
  border-radius: 8px;
  overflow: hidden;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.025), transparent 50%),
    rgba(8, 11, 20, 0.74);
  box-shadow: 0 32px 90px rgba(0, 0, 0, 0.28);
}

.spin-hero-art::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 2.6rem 2.6rem;
  -webkit-mask-image: linear-gradient(150deg, #000, transparent 78%);
  mask-image: linear-gradient(150deg, #000, transparent 78%);
  pointer-events: none;
}

.spin-hero-art-top {
  position: absolute;
  inset: 1.2rem 1.3rem auto;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-family: var(--mono);
  font-size: 0.63rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.spin-hero-signal {
  position: absolute;
  inset: 4.2rem 2.5rem 5rem;
  display: grid;
  align-content: center;
  gap: 0.62rem;
  transform: perspective(850px) rotateY(-8deg) rotateZ(-4deg);
}

.spin-signal-row {
  --row-offset: 0px;
  position: relative;
  display: grid;
  grid-template-columns: repeat(14, minmax(0, 1fr));
  gap: 0.48rem;
  padding: 0.56rem 0.75rem;
  transform: translateX(var(--row-offset));
  border: 1px solid rgba(255, 255, 255, 0.035);
  background: rgba(255, 255, 255, 0.018);
}

.spin-signal-row::before {
  content: attr(data-label);
  position: absolute;
  right: calc(100% + 0.55rem);
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--mono);
  font-size: 0.56rem;
  color: var(--ink-3);
}

.spin-signal-dot {
  aspect-ratio: 1;
  border-radius: 2px;
  background: rgba(169, 177, 199, 0.11);
  transition: opacity 200ms ease, transform 200ms ease;
}

.spin-signal-dot.is-signal {
  background: var(--signal-color, var(--indigo));
  box-shadow: 0 0 14px color-mix(in srgb, var(--signal-color, var(--indigo)) 72%, transparent);
  animation: spinSignal 3.2s ease-in-out infinite;
  animation-delay: var(--delay, 0ms);
}

.spin-hero-readout {
  position: absolute;
  right: 1.35rem;
  bottom: 1.3rem;
  z-index: 2;
  min-width: 10.5rem;
  padding: 0.9rem 1rem;
  border: 1px solid rgba(125, 141, 255, 0.35);
  border-radius: 5px;
  background: rgba(5, 7, 13, 0.86);
  box-shadow: 0 0 40px rgba(125, 141, 255, 0.12);
}

.spin-hero-readout span,
.spin-hero-readout strong {
  display: block;
}

.spin-hero-readout span {
  margin-bottom: 0.25rem;
  font-family: var(--mono);
  font-size: 0.57rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.spin-hero-readout strong {
  font-family: var(--display);
  font-size: 1.55rem;
  letter-spacing: -0.03em;
}

@keyframes spinSignal {
  0%, 100% { opacity: 0.55; transform: scale(0.84); }
  50% { opacity: 1; transform: scale(1.08); }
}

.spin-proof-rail {
  grid-column: 1 / -1;
  grid-row: 2;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--line);
}

.spin-proof {
  min-height: 8.7rem;
  padding: 1.8rem clamp(1rem, 2.2vw, 1.8rem);
  border-left: 1px solid var(--line);
}

.spin-proof:last-child {
  border-right: 1px solid var(--line);
}

.spin-proof strong,
.spin-proof span {
  display: block;
}

.spin-proof strong {
  margin-bottom: 0.55rem;
  font-family: var(--display);
  font-size: clamp(1.7rem, 3vw, 2.55rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.045em;
}

.spin-proof span {
  max-width: 22ch;
  color: var(--ink-3);
  font-size: 0.9rem;
  line-height: 1.45;
}

/* Shared section language -------------------------------------------------- */

.spin-section {
  position: relative;
  padding-block: clamp(5.5rem, 10vw, 8.5rem);
}

.spin-section-head {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(15rem, 0.7fr);
  align-items: end;
  gap: clamp(1.5rem, 5vw, 5rem);
  margin-bottom: clamp(2.8rem, 5vw, 4.5rem);
}

.spin-section-head-single {
  grid-template-columns: minmax(0, 1fr);
}

.spin-page .section-label {
  font-size: 0.82rem;
}

.spin-section {
  scroll-margin-top: 4.25rem;
}

.spin-section-head h2,
.spin-token-story h2 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(2.25rem, 5vw, 4rem);
  font-weight: 700;
  line-height: 1.07;
  letter-spacing: -0.045em;
  text-wrap: balance;
}

.spin-section-head p {
  max-width: 37ch;
  margin: 0;
  color: var(--ink-2);
  font-size: 1.02rem;
}

/* Results ----------------------------------------------------------------- */

.spin-results {
  background:
    radial-gradient(circle at 86% 6%, rgba(88, 104, 216, 0.08), transparent 28rem),
    var(--bg);
}

.spin-result-card {
  padding: clamp(1.15rem, 3vw, 2.25rem);
  border: 1px solid var(--line-soft);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 18px 55px rgba(20, 24, 36, 0.075);
}

.spin-chart-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: 0.3rem 0.25rem 1.4rem;
  border-bottom: 1px solid var(--line-soft);
}

.spin-chart-kicker {
  margin: 0;
}

.spin-chart-kicker {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--indigo);
}

.spin-chart-legend {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.65rem 1rem;
  color: var(--ink-3);
  font-family: var(--mono);
  font-size: 0.78rem;
}

.spin-chart-legend span {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.spin-chart-legend i {
  width: 0.65rem;
  height: 0.65rem;
  border-radius: 50%;
  background: #9aa1b2;
}

.spin-chart-legend .legend-spin {
  background: var(--indigo);
}

.spin-chart-legend .legend-sota {
  width: 0.9rem;
  height: 0;
  border-top: 1px dashed var(--crimson);
  border-radius: 0;
  background: none;
}

.spin-result-chart-wrap {
  position: relative;
  overflow-x: auto;
  scrollbar-width: thin;
}

.spin-result-chart {
  display: block;
  width: 100%;
  min-width: 56rem;
  height: auto;
  overflow: visible;
}

.spin-result-chart text {
  font-family: var(--mono);
}

.spin-result-chart .spin-svg-fallback,
.spin-exit-demo .spin-svg-fallback {
  fill: var(--ink-3);
  font-size: 13px;
}

.spin-result-chart .chart-panel-title {
  fill: var(--ink);
  font-family: var(--display);
  font-size: 21px;
  font-weight: 700;
}

.spin-result-chart .chart-panel-metric,
.spin-result-chart .chart-x-label,
.spin-result-chart .chart-tick,
.spin-result-chart .chart-sota-label {
  fill: var(--ink-3);
  font-size: 10px;
  letter-spacing: 0.04em;
}

.spin-result-chart .chart-grid-line {
  stroke: var(--line-soft);
  stroke-width: 1;
}

.spin-result-chart .chart-sota-line {
  stroke: var(--crimson);
  stroke-width: 1;
  stroke-dasharray: 4 5;
  opacity: 0.72;
}

.spin-result-chart .chart-model-group {
  opacity: 0.7;
  transition: opacity 180ms ease;
}

.spin-result-chart.has-focus .chart-model-group:not(.is-focused) {
  opacity: 0.105;
}

.spin-result-chart .chart-model-group.is-focused {
  opacity: 1;
}

.spin-result-chart .chart-model-line {
  fill: none;
  stroke: #a6adbc;
  stroke-width: 1.35;
  stroke-linecap: round;
  transition: stroke 180ms ease, stroke-width 180ms ease, stroke-dashoffset 700ms cubic-bezier(.2,.7,.2,1);
}

.spin-result-chart .chart-model-group.is-focused .chart-model-line {
  stroke: var(--indigo);
  stroke-width: 2.8;
}

.spin-result-chart .chart-point-base {
  fill: #fff;
  stroke: #8d95a7;
  stroke-width: 1.6;
}

.spin-result-chart .chart-point-spin {
  fill: var(--indigo);
  stroke: #fff;
  stroke-width: 1.4;
}

.spin-result-chart .chart-model-group.is-focused .chart-point-spin {
  fill: var(--crimson);
}

.spin-result-chart .chart-point {
  transform-box: fill-box;
  transform-origin: center;
  transition: transform 180ms ease, fill 180ms ease;
}

.spin-result-chart .chart-model-group.is-focused .chart-point {
  transform: scale(1.35);
}

.spin-result-chart .chart-hit-line {
  fill: none;
  stroke: transparent;
  stroke-width: 18;
  cursor: pointer;
}

.spin-result-chart .chart-hit-line:focus-visible {
  outline: none;
  stroke: rgba(88, 104, 216, 0.34);
  stroke-width: 10;
}

.spin-result-chart:not(.is-drawn) .chart-model-line {
  stroke-dashoffset: var(--path-length, 100);
}

.spin-result-chart:not(.is-drawn) .chart-point-spin {
  transform: scale(0);
}

.spin-chart-tooltip {
  position: absolute;
  z-index: 5;
  display: none;
  min-width: 11rem;
  padding: 0.72rem 0.8rem;
  transform: translate(12px, -50%);
  border: 1px solid var(--line);
  border-radius: 5px;
  background: rgba(23, 26, 36, 0.95);
  color: #eef0f7;
  box-shadow: 0 14px 36px rgba(20, 24, 36, 0.22);
  pointer-events: none;
  font-size: 0.75rem;
  line-height: 1.45;
}

.spin-chart-tooltip.is-visible {
  display: block;
}

.spin-chart-tooltip b,
.spin-chart-tooltip span {
  display: block;
}

.spin-chart-tooltip span {
  color: #a9b1c7;
}

.spin-result-story {
  display: grid;
  grid-template-columns: minmax(13rem, 0.58fr) minmax(0, 1.42fr);
  align-items: start;
  gap: clamp(2rem, 6vw, 6rem);
  margin-top: clamp(2.5rem, 5vw, 4rem);
  padding-block: clamp(2rem, 4vw, 3.2rem);
  border-block: 1px solid var(--line-soft);
}

.spin-result-story h3 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(1.8rem, 3.4vw, 2.65rem);
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.spin-result-story p {
  max-width: 62ch;
  margin: 0;
  color: var(--ink-2);
  font-size: clamp(1rem, 1.35vw, 1.1rem);
  line-height: 1.75;
}

.spin-raw-results {
  margin-top: 2rem;
  border-block: 1px solid var(--line-soft);
}

.spin-raw-results summary {
  padding: 1rem 0;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-2);
}

.spin-table-scroll {
  overflow-x: auto;
}

.spin-raw-results table {
  width: 100%;
  min-width: 48rem;
  border-collapse: collapse;
  font-variant-numeric: tabular-nums;
}

.spin-raw-results th,
.spin-raw-results td {
  padding: 0.65rem 0.75rem;
  border-bottom: 1px solid var(--line-soft);
  text-align: right;
  font-size: 0.78rem;
}

.spin-raw-results th:first-child {
  text-align: left;
}

.spin-raw-results thead tr:nth-child(2) th {
  text-align: right;
}

.spin-raw-results tbody td:nth-child(odd) {
  color: var(--indigo);
  font-weight: 700;
}

.spin-raw-results > p {
  color: var(--ink-3);
  font-size: 0.78rem;
}

/* Method ------------------------------------------------------------------ */

.spin-method {
  color: var(--ink);
  background:
    radial-gradient(circle at 14% 48%, rgba(224, 69, 95, 0.085), transparent 27rem),
    radial-gradient(circle at 86% 25%, rgba(125, 141, 255, 0.12), transparent 30rem),
    #05070d;
}

.spin-section-head-dark p {
  color: var(--ink-2);
}

.spin-readout-demo {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(10, 14, 24, 0.78);
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.22);
}

.spin-mode-switch {
  display: inline-flex;
  gap: 0.35rem;
  margin: 1.2rem 1.2rem 0;
  padding: 0.28rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.025);
}

.spin-mode-switch button,
.spin-pool-switch button {
  border: 0;
  border-radius: 4px;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  background: transparent;
  transition: color 180ms ease, background 180ms ease;
}

.spin-mode-switch button {
  padding: 0.6rem 0.85rem;
  color: var(--ink-3);
}

.spin-mode-switch button:hover {
  color: var(--ink);
}

.spin-mode-switch button.is-active {
  color: #05070d;
  background: var(--ink);
}

.spin-readout-board {
  padding: clamp(0.5rem, 2vw, 1.2rem);
}

.spin-readout-board svg {
  display: block;
  width: 100%;
  height: auto;
}

.spin-readout-board .spin-svg-fallback {
  fill: var(--ink-2);
  font-family: var(--sans);
  font-size: 17px;
}

#spinReadoutSvg text {
  font-family: var(--mono);
}

#spinReadoutSvg .readout-small-label {
  fill: var(--ink-3);
  font-size: 10px;
  letter-spacing: 0.12em;
}

#spinReadoutSvg .readout-main-label {
  fill: var(--ink);
  font-family: var(--display);
  font-size: 22px;
  font-weight: 700;
}

#spinReadoutSvg .readout-input-label {
  font-size: 13px;
  font-weight: 600;
}

#spinReadoutSvg .readout-layer-line {
  stroke: rgba(255, 255, 255, 0.055);
  stroke-width: 1;
}

#spinReadoutSvg .readout-neuron {
  fill: #202637;
  stroke: rgba(255, 255, 255, 0.07);
  stroke-width: 1;
  transition: fill 260ms ease, opacity 260ms ease, transform 260ms ease;
  transform-box: fill-box;
  transform-origin: center;
}

#spinReadoutSvg .readout-neuron.is-signal {
  fill: var(--indigo);
  stroke: #aab5ff;
  transform: scale(1.18);
  filter: drop-shadow(0 0 6px rgba(125, 141, 255, 0.6));
}

#spinReadoutSvg .readout-neuron.is-signal.is-hot {
  fill: var(--crimson);
  stroke: #ff9bac;
  filter: drop-shadow(0 0 7px rgba(224, 69, 95, 0.62));
}

#spinReadoutSvg .readout-wire {
  fill: none;
  stroke: rgba(125, 141, 255, 0.46);
  stroke-width: 1.3;
  stroke-linecap: round;
  transition: opacity 250ms ease;
}

#spinReadoutSvg .readout-wire.is-hot {
  stroke: rgba(224, 69, 95, 0.66);
}

#spinReadoutSvg .readout-node {
  fill: #0d1220;
  stroke: rgba(255, 255, 255, 0.13);
  stroke-width: 1;
}

#spinReadoutSvg .readout-output {
  fill: rgba(125, 141, 255, 0.1);
  stroke: rgba(125, 141, 255, 0.48);
}

#spinReadoutSvg .readout-output-score {
  fill: var(--ink);
  font-family: var(--display);
  font-size: 20px;
  font-weight: 700;
}

.spin-readout-caption {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: 1.2rem clamp(1.2rem, 3vw, 2rem) 1.45rem;
  border-top: 1px solid var(--line-soft);
}

.spin-readout-caption p {
  max-width: 55ch;
  margin: 0;
  color: var(--ink-2);
  font-size: 0.9rem;
}

.spin-readout-caption b {
  color: var(--ink);
}

.spin-method-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: clamp(2.5rem, 5vw, 4rem);
  border-block: 1px solid var(--line-soft);
}

.spin-method-steps article {
  padding: 1.8rem clamp(1rem, 2.8vw, 2.2rem);
  border-left: 1px solid var(--line-soft);
}

.spin-method-steps article:last-child {
  border-right: 1px solid var(--line-soft);
}

.spin-method-steps span {
  color: var(--crimson);
  font-family: var(--mono);
  font-size: 0.65rem;
}

.spin-method-steps h3 {
  margin: 0.65rem 0 0.55rem;
  font-family: var(--display);
  font-size: 1.35rem;
  letter-spacing: -0.025em;
}

.spin-method-steps p {
  max-width: 30ch;
  margin: 0;
  color: var(--ink-3);
  font-size: 0.85rem;
}

/* What / Which / Where ----------------------------------------------------- */

.spin-explorer {
  background:
    radial-gradient(circle at 8% 25%, rgba(197, 60, 86, 0.05), transparent 26rem),
    radial-gradient(circle at 92% 78%, rgba(88, 104, 216, 0.07), transparent 30rem),
    var(--bg);
}

.spin-www {
  overflow: hidden;
  border: 1px solid var(--line-soft);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 20px 60px rgba(20, 24, 36, 0.065);
}

.spin-www-tabs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-bottom: 1px solid var(--line-soft);
}

.spin-www-tabs[hidden] {
  display: none;
}

.spin-www-tabs button {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  min-height: 4.8rem;
  padding: 1rem clamp(0.8rem, 2.5vw, 1.8rem);
  border: 0;
  border-right: 1px solid var(--line-soft);
  background: #fafafd;
  color: var(--ink-3);
  text-align: left;
  cursor: pointer;
  transition: color 180ms ease, background 180ms ease;
}

.spin-www-tabs button:last-child {
  border-right: 0;
}

.spin-www-tabs button::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 2px;
  transform: scaleX(0);
  transform-origin: left;
  background: linear-gradient(90deg, var(--crimson), var(--indigo));
  transition: transform 220ms ease;
}

.spin-www-tabs button[aria-selected="true"] {
  color: var(--ink);
  background: #fff;
}

.spin-www-tabs button[aria-selected="true"]::after {
  transform: scaleX(1);
}

.spin-www-tabs b {
  font-family: var(--display);
  font-size: 1.2rem;
}

.spin-www-tabs span {
  font-size: 0.78rem;
}

.spin-www-panel {
  min-height: 34rem;
  padding: clamp(1.5rem, 4vw, 3rem);
}

.spin-www-panel:not([hidden]) {
  display: grid;
  grid-template-columns: minmax(17rem, 0.78fr) minmax(24rem, 1.22fr);
  align-items: center;
  gap: clamp(2rem, 6vw, 6rem);
}

.spin-www-copy h3 {
  max-width: 17ch;
  margin: 0 0 0.9rem;
  font-family: var(--display);
  font-size: clamp(1.75rem, 3.4vw, 2.6rem);
  line-height: 1.12;
  letter-spacing: -0.035em;
}

.spin-www-copy > p:not(.spin-www-step):not(.spin-fact) {
  max-width: 38ch;
  margin: 0 0 1.6rem;
  color: var(--ink-2);
}

.spin-www-step {
  margin: 0 0 0.65rem;
  color: var(--indigo);
  font-family: var(--mono);
  font-size: 0.67rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.spin-range-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin: 1.8rem 0 0.6rem;
  color: var(--ink-3);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.spin-range-label output {
  color: var(--ink);
  text-transform: none;
}

.spin-range {
  width: 100%;
  accent-color: var(--indigo);
  cursor: pointer;
}

.spin-range-scale {
  display: flex;
  justify-content: space-between;
  margin-top: 0.22rem;
  color: var(--ink-3);
  font-family: var(--mono);
  font-size: 0.58rem;
}

.spin-range-stepped {
  accent-color: var(--crimson);
}

.spin-fact {
  margin: 1.35rem 0 0;
  padding-top: 1rem;
  border-top: 1px solid var(--line-soft);
  color: var(--ink-3);
  font-size: 0.78rem;
  line-height: 1.5;
}

.spin-fact b {
  color: var(--ink-2);
}

.spin-neuron-demo {
  position: relative;
  width: min(100%, 32rem);
  margin: 0 auto;
  padding: clamp(1.2rem, 3vw, 2rem);
  border: 1px solid var(--line-soft);
  border-radius: 8px;
  background:
    radial-gradient(circle at 50% 50%, rgba(88, 104, 216, 0.055), transparent 70%),
    #f7f7fa;
}

.spin-neuron-grid {
  display: grid;
  grid-template-columns: repeat(10, minmax(0, 1fr));
  gap: clamp(0.35rem, 1vw, 0.72rem);
}

.spin-neuron-grid span {
  aspect-ratio: 1;
  border-radius: 3px;
  background: #dfe2ea;
  transition: transform 180ms ease, background 180ms ease, box-shadow 180ms ease, opacity 180ms ease;
}

.spin-neuron-grid span.is-selected {
  transform: scale(1.08);
  background: var(--signal-color, var(--indigo));
  box-shadow: 0 0 15px color-mix(in srgb, var(--signal-color, var(--indigo)) 42%, transparent);
}

.spin-neuron-counter {
  position: absolute;
  right: -0.75rem;
  bottom: -0.85rem;
  min-width: 6rem;
  padding: 0.75rem 0.85rem;
  border-radius: 5px;
  background: #171a24;
  color: #fff;
  box-shadow: 0 12px 30px rgba(20, 24, 36, 0.18);
}

.spin-neuron-counter strong,
.spin-neuron-counter span {
  display: block;
}

.spin-neuron-counter strong {
  font-family: var(--display);
  font-size: 1.65rem;
  line-height: 1;
}

.spin-neuron-counter span {
  color: #a9b1c7;
  font-family: var(--mono);
  font-size: 0.58rem;
  text-transform: uppercase;
}

.spin-pool-switch {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.spin-pool-switch button {
  padding: 0.58rem 0.72rem;
  border: 1px solid var(--line);
  color: var(--ink-3);
}

.spin-pool-switch button.is-active {
  border-color: var(--indigo);
  background: rgba(88, 104, 216, 0.08);
  color: var(--indigo);
}

.spin-pooling-demo {
  padding: clamp(1rem, 3vw, 2rem);
  border: 1px solid var(--line-soft);
  border-radius: 8px;
  background: #f7f7fa;
}

.spin-token-activations {
  display: grid;
  grid-template-columns: repeat(6, minmax(3.4rem, 1fr));
  gap: 0.65rem;
  overflow-x: auto;
}

.spin-token-card {
  min-width: 3.4rem;
}

.spin-token-card span {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 0.45rem;
  color: var(--ink-3);
  font-family: var(--mono);
  font-size: 0.59rem;
  text-align: center;
  white-space: nowrap;
}

.spin-token-bars {
  display: flex;
  align-items: end;
  gap: 2px;
  height: 7rem;
  padding: 0.4rem;
  border: 1px solid var(--line-soft);
  border-radius: 4px;
  background: #fff;
  transition: opacity 180ms ease, border-color 180ms ease;
}

.spin-token-bars i {
  flex: 1;
  height: calc(var(--value) * 1%);
  min-height: 3px;
  border-radius: 2px 2px 0 0;
  background: linear-gradient(180deg, var(--indigo), rgba(88, 104, 216, 0.26));
}

.spin-token-card.is-muted .spin-token-bars {
  opacity: 0.24;
}

.spin-token-card.is-source .spin-token-bars {
  border-color: rgba(88, 104, 216, 0.58);
}

.spin-pool-arrow {
  margin: 0.55rem 0;
  color: var(--ink-3);
  text-align: center;
}

.spin-pooled-vector {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 0.25rem;
  height: 3rem;
  padding: 0.45rem;
  border: 1px solid var(--line-soft);
  border-radius: 4px;
  background: #fff;
}

.spin-pooled-vector span {
  border-radius: 2px;
  background: color-mix(in srgb, var(--indigo) calc(var(--value) * 1%), #eceef4);
  transition: background 220ms ease, transform 220ms ease;
}

.spin-pooling-demo > p {
  margin: 0.8rem 0 0;
  color: var(--ink-3);
  font-size: 0.76rem;
  text-align: center;
}

.spin-select-label {
  display: block;
  margin: 1.5rem 0 0.45rem;
  color: var(--ink-3);
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.spin-select {
  width: 100%;
  padding: 0.68rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: #fff;
  color: var(--ink);
}

.spin-exit-demo {
  padding: clamp(1rem, 3vw, 2rem);
  border: 1px solid var(--line-soft);
  border-radius: 8px;
  background: #f7f7fa;
}

.spin-exit-demo svg {
  display: block;
  width: 100%;
  height: auto;
}

#spinExitChart text {
  font-family: var(--mono);
}

#spinExitChart .exit-grid {
  stroke: rgba(20, 24, 36, 0.08);
  stroke-width: 1;
}

#spinExitChart .exit-line {
  fill: none;
  stroke: var(--indigo);
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
}

#spinExitChart .exit-area {
  fill: url(#exitAreaGradient);
}

#spinExitChart .exit-point {
  fill: #fff;
  stroke: var(--indigo);
  stroke-width: 2;
  transition: r 180ms ease, fill 180ms ease, stroke 180ms ease;
}

#spinExitChart .exit-point.is-current {
  r: 8px;
  fill: var(--crimson);
  stroke: #fff;
  filter: drop-shadow(0 0 6px rgba(197, 60, 86, 0.45));
}

#spinExitChart .exit-label,
#spinExitChart .exit-tick {
  fill: var(--ink-3);
  font-size: 10px;
}

.spin-exit-readout {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 0.8rem;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}

.spin-exit-readout > div {
  padding: 0.8rem 1rem;
  background: #fff;
}

.spin-exit-readout strong,
.spin-exit-readout span {
  display: block;
}

.spin-exit-readout strong {
  font-family: var(--display);
  font-size: 1.65rem;
  line-height: 1;
}

.spin-exit-readout span {
  margin-top: 0.3rem;
  color: var(--ink-3);
  font-size: 0.68rem;
}

.spin-www-note {
  margin: 0;
  padding: 0.9rem clamp(1.5rem, 4vw, 3rem);
  border-top: 1px solid var(--line-soft);
  color: var(--ink-3);
  font-size: 0.71rem;
}

/* Token-level qualitative view ------------------------------------------- */

.spin-token-story {
  color: var(--ink);
  background:
    radial-gradient(circle at 80% 20%, rgba(125, 141, 255, 0.12), transparent 30rem),
    radial-gradient(circle at 28% 100%, rgba(224, 69, 95, 0.08), transparent 28rem),
    #05070d;
}

.spin-token-grid {
  display: grid;
  grid-template-columns: minmax(18rem, 0.7fr) minmax(26rem, 1.3fr);
  align-items: center;
  gap: clamp(2.5rem, 7vw, 7rem);
}

.spin-token-story h2 {
  font-size: clamp(2rem, 4.2vw, 3.35rem);
}

.spin-token-story .spin-token-grid > div:first-child > p:last-child {
  max-width: 38ch;
  color: var(--ink-2);
}

.spin-sentiment {
  padding: clamp(1.3rem, 3vw, 2.3rem);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(10, 14, 24, 0.78);
}

.spin-sentiment-label {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.4rem;
  margin: 0 0 1.5rem;
  color: var(--ink-3);
  font-family: var(--mono);
  font-size: 0.61rem;
  text-transform: uppercase;
}

.spin-sentiment-label span {
  width: 0.55rem;
  height: 0.55rem;
  margin-left: 0.5rem;
  border-radius: 2px;
}

.sentiment-neg { background: var(--crimson); }
.sentiment-pos { background: #59bb88; }

.spin-phrase-track {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--display);
  font-size: clamp(1.1rem, 2.5vw, 1.7rem);
  line-height: 1.65;
}

.spin-phrase-track > .phrase-bridge {
  color: var(--ink-3);
  font-style: italic;
}

.spin-phrase {
  display: inline-block;
  padding: 0.16rem 0.42rem 0.23rem;
  border: 1px solid transparent;
  border-radius: 3px;
  font-weight: 600;
  line-height: 1.3;
}

.spin-phrase-track .phrase-positive {
  border-color: rgba(89, 187, 136, 0.32);
  background: rgba(89, 187, 136, 0.16);
  color: #a9e4c4;
}

.spin-phrase-track .phrase-negative {
  border-color: rgba(224, 69, 95, 0.32);
  background: rgba(224, 69, 95, 0.14);
  color: #ff9cae;
}

.spin-sentiment-note {
  margin: 1.5rem 0 0;
  padding-top: 1rem;
  border-top: 1px solid var(--line-soft);
  color: var(--ink-3);
  font-size: 0.7rem;
}

/* Reveal enhancement ------------------------------------------------------ */

[data-reveal] {
  opacity: 1;
  transform: none;
}

.spin-enhanced [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 650ms ease, transform 650ms cubic-bezier(.2,.7,.2,1);
}

.spin-enhanced [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* Responsive -------------------------------------------------------------- */

@media (max-width: 980px) {
  .spin-masthead-grid {
    grid-template-columns: 1fr;
  }

  .spin-hero-copy {
    grid-column: 1;
    grid-row: 1;
  }

  .spin-proof-rail {
    grid-column: 1;
    grid-row: 2;
  }

  .spin-hero-art {
    grid-column: 1;
    grid-row: 3;
  }

  .spin-hero-copy {
    max-width: 46rem;
  }

  .spin-hero-art {
    min-height: 28rem;
  }

  .spin-section-head,
  .spin-token-grid {
    grid-template-columns: 1fr;
  }

  .spin-section-head p {
    max-width: 50ch;
  }

  .spin-www-panel:not([hidden]) {
    grid-template-columns: 1fr;
  }

  .spin-www-copy {
    max-width: 42rem;
  }

  .spin-neuron-demo {
    width: min(100%, 38rem);
  }

  .spin-token-story .spin-token-grid > div:first-child {
    max-width: 46rem;
  }
}

@media (max-width: 760px) {
  .spin-nav-links a:nth-child(3),
  .spin-nav-links a:nth-child(4) {
    display: none;
  }

  .spin-masthead {
    padding-top: 7.5rem;
  }

  .spin-hero-copy h1 {
    font-size: clamp(4.8rem, 26vw, 7rem);
  }

  .spin-hero-art {
    min-height: 23rem;
  }

  .spin-hero-signal {
    inset: 3.8rem 1.5rem 4.5rem 2.1rem;
  }

  .spin-signal-row {
    gap: 0.32rem;
    padding: 0.42rem 0.5rem;
  }

  .spin-proof-rail {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .spin-proof:nth-child(3) {
    border-top: 1px solid var(--line);
  }

  .spin-proof:nth-child(4) {
    border-top: 1px solid var(--line);
  }

  .spin-chart-head,
  .spin-readout-caption {
    align-items: flex-start;
    flex-direction: column;
  }

  .spin-chart-legend {
    justify-content: flex-start;
  }

  .spin-result-story,
  .spin-method-steps {
    grid-template-columns: 1fr;
  }

  .spin-method-steps article,
  .spin-method-steps article:last-child {
    border-right: 1px solid var(--line-soft);
  }

  .spin-method-steps article + article {
    border-top: 1px solid var(--line-soft);
  }

  .spin-www-tabs button {
    display: grid;
    align-content: center;
    gap: 0.1rem;
    min-height: 4.5rem;
  }

  .spin-www-tabs span {
    display: none;
  }

  .spin-www-panel {
    min-height: 0;
  }

  .spin-token-grid {
    gap: 2rem;
  }

}

@media (max-width: 480px) {
  .spin-nav-inner {
    min-height: 4rem;
    gap: 0.75rem;
  }

  .spin-nav-links {
    gap: 0.65rem;
  }

  .spin-nav-home,
  .spin-nav-links a {
    font-size: 0.66rem;
  }

  .spin-hero-art-top span:last-child {
    display: none;
  }

  .spin-proof {
    min-height: 8rem;
    padding: 1.4rem 0.85rem;
  }

  .spin-proof strong {
    font-size: 1.6rem;
  }

  .spin-mode-switch {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    width: calc(100% - 2rem);
    margin-inline: 1rem;
  }

  .spin-mode-switch button {
    padding-inline: 0.5rem;
  }

  .spin-www-tabs b {
    font-size: 1rem;
  }

  .spin-www-panel {
    padding: 1.25rem;
  }

  .spin-token-activations {
    grid-template-columns: repeat(6, 3.2rem);
  }

  .spin-exit-readout {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .spin-signal-dot.is-signal {
    animation: none;
  }

  .spin-enhanced [data-reveal],
  .spin-result-chart .chart-model-line,
  .spin-result-chart .chart-point,
  .spin-neuron-grid span {
    transition: none;
  }
}

/* Academic editorial theme ------------------------------------------------
   This final layer deliberately keeps the page's existing structure and
   interactions intact while moving the presentation from a product launch
   toward a calm, figure-led research article. */

.spin-page,
.spin-page .light {
  --bg: #ffffff;
  --bg-raise: #ffffff;
  --ink: #202326;
  --ink-2: #50555a;
  --ink-3: #646a6f;
  --crimson: #a64a3e;
  --indigo: #3f6f8f;
  --line: #cbc9c1;
  --line-soft: #dfddd6;
}

.spin-page {
  background: var(--bg);
  color: var(--ink);
  font-size: 16.5px;
}

.spin-page :where(a, button, input, select, [tabindex]):focus-visible {
  outline: 2px solid var(--indigo);
  outline-offset: 3px;
}

/* Navigation */

.spin-nav {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.96);
  border-color: var(--line-soft);
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
}

.spin-nav-inner {
  min-height: 3.75rem;
}

.spin-nav-home,
.spin-nav-links a {
  font-family: var(--sans);
  letter-spacing: 0.025em;
}

.spin-nav-home {
  color: var(--ink-2);
  font-size: 0.82rem;
  font-weight: 600;
}

.spin-nav-home span {
  color: var(--indigo);
}

.spin-nav-links {
  gap: clamp(1rem, 2.5vw, 2rem);
}

.spin-nav-links a {
  color: var(--ink-3);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: none;
}

.spin-nav a:hover {
  color: var(--indigo);
}

/* Paper cover */

.spin-masthead {
  min-height: 0;
  padding: clamp(6.5rem, 9vw, 7.75rem) 0 clamp(3.25rem, 5vw, 4.5rem);
  color: var(--ink);
  background: #e8ebec;
  overflow: hidden;
}

.spin-masthead::after {
  background: var(--line);
}

.spin-masthead-grid {
  grid-template-columns: minmax(0, 1.1fr) minmax(22rem, 0.9fr);
  align-items: center;
  gap: clamp(2.5rem, 5vw, 4.5rem);
}

.spin-hero-copy .eyebrow {
  margin-bottom: 1.1rem;
  color: var(--ink-3);
  font-family: var(--sans);
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.06em;
}

.spin-hero-copy .eyebrow b {
  color: var(--indigo);
}

.spin-hero-copy h1 {
  margin-bottom: 0.85rem;
  color: var(--ink);
  font-size: clamp(2.6rem, 4vw, 3.3rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.045em;
}

.spin-hero-claim {
  max-width: 34ch;
  margin-bottom: 1.05rem;
  color: var(--ink);
  font-size: clamp(1.3rem, 2vw, 1.7rem);
  font-weight: 600;
  line-height: 1.28;
  letter-spacing: -0.018em;
}

.spin-title-mark {
  text-decoration-line: underline;
  text-decoration-color: currentColor;
  text-decoration-thickness: 0.075em;
  text-underline-offset: 0.13em;
}

.spin-keywords {
  display: flex;
  flex-wrap: wrap;
  gap: 0.2rem 0;
  margin: 0 0 1rem;
  padding: 0;
  color: var(--ink-3);
  font-family: var(--sans);
  font-size: 0.8rem;
  font-weight: 500;
  line-height: 1.6;
  list-style: none;
}

.spin-keywords li + li::before {
  content: "\00b7";
  margin-inline: 0.55rem;
  color: var(--line);
}

.spin-hero-deck {
  max-width: 38rem;
  margin-bottom: 1.2rem;
  color: var(--ink-2);
  font-size: 1rem;
  line-height: 1.65;
}

.spin-hero-deck > b,
.spin-expansion b {
  color: var(--ink);
}

.spin-authors {
  margin-bottom: 1.45rem;
  color: var(--ink-3);
  font-family: var(--sans);
  font-size: 0.8rem;
  line-height: 1.65;
}

.spin-authors b {
  color: var(--ink-2);
}

.spin-hero-links {
  gap: 0.45rem;
}

.spin-hero-links .chip {
  padding: 0.5rem 0.78rem;
  border-color: var(--line);
  border-radius: 2px;
  background: #fff;
  color: var(--ink-2);
  font-family: var(--sans);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0;
}

.spin-hero-links .chip:hover {
  border-color: var(--indigo);
  background: #fff;
  color: var(--indigo);
}

.spin-hero-links .chip-primary {
  border-color: var(--indigo);
  background: var(--indigo);
  color: #fff;
}

.spin-hero-links .chip-primary:hover {
  border-color: #315d78;
  background: #315d78;
  color: #fff;
}

.spin-hero-art {
  min-height: clamp(22rem, 32vw, 27rem);
  border-color: var(--line);
  border-radius: 2px;
  background: #fff;
  box-shadow: none;
}

.spin-hero-art::before {
  background-image:
    linear-gradient(rgba(62, 70, 74, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(62, 70, 74, 0.045) 1px, transparent 1px);
  background-size: 2.75rem 2.75rem;
  -webkit-mask-image: none;
  mask-image: none;
}

.spin-hero-art-top {
  color: var(--ink-3);
}

.spin-hero-signal {
  inset: 2.8rem 3rem;
  transform: none;
}

.spin-hero-art .spin-signal-row::before {
  display: none;
}

.spin-signal-row {
  border-color: #e1dfd8;
  background: rgba(235, 238, 238, 0.72);
}

.spin-signal-row::before {
  color: var(--ink-3);
}

.spin-signal-dot {
  background: #d9dcd9;
}

.spin-signal-dot.is-signal {
  box-shadow: none;
  animation: none;
}

.spin-hero-readout {
  border-color: #9eb2bf;
  border-radius: 2px;
  background: #f8fbfc;
  color: var(--ink);
  box-shadow: none;
}

.spin-hero-readout span {
  color: var(--ink-3);
}

.spin-proof-rail {
  margin-top: clamp(3rem, 6vw, 5rem);
  border-block: 1px solid var(--line);
}

.spin-proof {
  min-height: 7.6rem;
  padding-block: 1.55rem;
  border-color: var(--line);
}

.spin-proof strong {
  margin-bottom: 0.45rem;
  color: var(--ink);
  font-size: clamp(1.65rem, 2.5vw, 2.2rem);
  font-weight: 650;
}

.spin-proof span {
  color: var(--ink-3);
  font-size: 0.82rem;
}

.spin-results .spin-proof-rail {
  grid-column: auto;
  grid-row: auto;
  margin: 0 0 clamp(2.5rem, 4vw, 3.6rem);
}

/* Article rhythm */

.spin-section {
  padding-block: clamp(3.75rem, 6vw, 5.5rem);
}

.spin-page .section-label {
  margin-bottom: 2.1rem;
  color: var(--ink-3);
  font-family: var(--sans);
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.08em;
}

.spin-page .section-label::after {
  background: var(--line-soft);
}

.spin-section-head {
  align-items: start;
  margin-bottom: clamp(1.8rem, 3vw, 2.6rem);
}

.spin-section-head h2,
.spin-token-story h2 {
  color: var(--ink);
  font-size: clamp(1.65rem, 2.8vw, 2.3rem);
  font-weight: 600;
  line-height: 1.18;
  letter-spacing: -0.025em;
}

.spin-section-head p {
  max-width: 42ch;
  padding-top: 0.25rem;
  color: var(--ink-2);
  font-size: 0.98rem;
  line-height: 1.7;
}

.spin-motivation {
  border-bottom: 1px solid var(--line-soft);
  background: #fff;
}

.spin-motivation .spin-section-head {
  margin-bottom: 1.4rem;
}

.spin-motivation-copy {
  max-width: 68ch;
  margin: 0;
  color: var(--ink-2);
  font-family: var(--sans);
  font-size: 1.03rem;
  line-height: 1.78;
}

/* Results as a paper figure */

.spin-results {
  background: #fff;
}

.spin-result-card {
  padding: clamp(1rem, 2.5vw, 1.8rem);
  border-color: var(--line);
  border-radius: 2px;
  background: #fff;
  box-shadow: none;
}

.spin-chart-head {
  justify-content: flex-end;
  border-color: var(--line-soft);
}

.spin-chart-kicker {
  color: var(--ink-2);
  font-family: var(--sans);
  font-size: 0.7rem;
  font-weight: 650;
  letter-spacing: 0.065em;
}

.spin-chart-legend {
  color: var(--ink-3);
  font-family: var(--sans);
  font-size: 0.75rem;
}

.spin-chart-legend i {
  background: #9da4a6;
}

.spin-chart-legend .legend-spin {
  background: var(--indigo);
}

.spin-result-chart .chart-model-line {
  stroke: #9ea6a8;
}

.spin-result-chart .chart-point-base {
  fill: #fff;
  stroke: #858e90;
}

.spin-result-chart .chart-point-spin {
  fill: var(--indigo);
  stroke: #fff;
}

.spin-chart-tooltip {
  border-color: #4c5457;
  border-radius: 2px;
  background: #303639;
  box-shadow: 0 8px 20px rgba(32, 35, 38, 0.16);
}

.spin-result-story {
  display: block;
  border-color: var(--line-soft);
}

.spin-result-story h3 {
  color: var(--ink);
  font-size: clamp(1.65rem, 3vw, 2.3rem);
  font-weight: 650;
}

.spin-result-story p {
  max-width: 68ch;
  color: var(--ink-2);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.75;
}

.spin-raw-results {
  border-color: var(--line-soft);
}

.spin-raw-results summary {
  color: var(--ink-2);
  font-family: var(--sans);
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.06em;
}

/* Method as a neutral figure spread */

.spin-method {
  color: var(--ink);
  background: #f2f3f1;
}

.spin-section-head-dark p {
  color: var(--ink-2);
}

.spin-readout-demo {
  border-color: var(--line);
  border-radius: 2px;
  background: #fff;
  box-shadow: none;
}

.spin-mode-switch {
  gap: 0;
  padding: 0;
  border-color: var(--line);
  border-radius: 2px;
  background: #f3f2ed;
}

.spin-mode-switch button,
.spin-pool-switch button {
  border-radius: 0;
  font-family: var(--sans);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0;
}

.spin-mode-switch button {
  color: var(--ink-3);
}

.spin-mode-switch button + button {
  border-left: 1px solid var(--line);
}

.spin-mode-switch button:hover {
  color: var(--indigo);
}

.spin-mode-switch button.is-active {
  color: #fff;
  background: var(--indigo);
}

#spinReadoutSvg .readout-small-label {
  fill: var(--ink-3);
}

#spinReadoutSvg .readout-main-label,
#spinReadoutSvg .readout-output-score {
  fill: var(--ink);
}

#spinReadoutSvg .readout-layer-line {
  stroke: #deddd7;
}

#spinReadoutSvg .readout-neuron {
  fill: #e2e4e1;
  stroke: #c7cbc8;
}

#spinReadoutSvg .readout-neuron.is-signal {
  fill: var(--indigo);
  stroke: #264e68;
  filter: none;
}

#spinReadoutSvg .readout-neuron.is-signal.is-hot {
  fill: var(--crimson);
  stroke: #7c332b;
  filter: none;
}

#spinReadoutSvg .readout-wire {
  stroke: rgba(63, 111, 143, 0.48);
}

#spinReadoutSvg .readout-wire.is-hot {
  stroke: rgba(166, 74, 62, 0.62);
}

#spinReadoutSvg .readout-node {
  fill: #f8f8f4;
  stroke: #bfc3c1;
}

#spinReadoutSvg .readout-output {
  fill: #edf3f5;
  stroke: #86a1b2;
}

.spin-readout-caption {
  border-color: var(--line-soft);
}

.spin-readout-caption p {
  color: var(--ink-2);
}

.spin-readout-caption b {
  color: var(--ink);
}

.spin-method-steps {
  border-color: var(--line);
}

.spin-method-steps article,
.spin-method-steps article:last-child {
  border-color: var(--line);
}

.spin-method-steps span {
  color: var(--indigo);
}

.spin-method-steps h3 {
  margin-top: 0;
  color: var(--ink);
  font-size: 1.08rem;
  font-weight: 650;
}

.spin-method-steps p {
  color: var(--ink-2);
}

/* Interactive appendix */

.spin-explorer {
  border-top: 1px solid var(--line-soft);
  background: #f7f7f4;
}

.spin-www {
  border-color: var(--line);
  border-radius: 2px;
  background: #fff;
  box-shadow: none;
}

.spin-www-tabs {
  border-color: var(--line);
}

.spin-www-tabs button {
  align-items: center;
  min-height: 3.8rem;
  border-color: var(--line);
  background: #f1f0eb;
  color: var(--ink-3);
}

.spin-www-tabs button::after {
  height: 3px;
  background: var(--indigo);
}

.spin-www-tabs button[aria-selected="true"] {
  background: #fff;
  color: var(--ink);
}

.spin-www-tabs b {
  font-size: 1rem;
}

.spin-www-step {
  color: var(--indigo);
  font-family: var(--sans);
  font-weight: 650;
  letter-spacing: 0.07em;
}

.spin-www-copy h3 {
  color: var(--ink);
  font-size: clamp(1.25rem, 2vw, 1.7rem);
  font-weight: 650;
}

.spin-neuron-demo,
.spin-pooling-demo,
.spin-exit-demo {
  border-color: var(--line-soft);
  border-radius: 2px;
  background: #f3f2ed;
}

.spin-neuron-grid span {
  border-radius: 1px;
  background: #d8dad7;
}

.spin-neuron-grid span.is-selected {
  box-shadow: none;
}

.spin-neuron-counter {
  border: 1px solid #667276;
  border-radius: 2px;
  background: #3e494d;
  box-shadow: none;
}

.spin-pool-switch {
  gap: 0;
}

.spin-pool-switch button {
  border-color: var(--line);
  background: #fff;
  color: var(--ink-3);
}

.spin-pool-switch button + button {
  border-left: 0;
}

.spin-pool-switch button.is-active {
  border-color: var(--indigo);
  background: #e8f0f4;
  color: #315d78;
}

.spin-token-bars,
.spin-pooled-vector,
.spin-select,
.spin-exit-readout > div {
  border-radius: 1px;
  background: #fff;
}

.spin-token-bars i {
  background: var(--indigo);
}

#spinExitChart .exit-point.is-current {
  filter: none;
}

.spin-www-note {
  border-color: var(--line-soft);
}

/* Qualitative figure */

.spin-token-story {
  color: var(--ink);
  background: #e8ebec;
}

.spin-token-story .spin-token-grid > div:first-child > p:last-child {
  color: var(--ink-2);
}

.spin-sentiment {
  border-color: #c7cdd0;
  border-radius: 2px;
  background: #fff;
}

.spin-phrase-track > .phrase-bridge,
.spin-sentiment-label,
.spin-sentiment-note {
  color: var(--ink-3);
}

.spin-phrase {
  border-radius: 1px;
}

.spin-phrase-track .phrase-positive {
  border-color: #95bba6;
  background: #e8f1eb;
  color: #315f48;
}

.spin-phrase-track .phrase-negative {
  border-color: #c99b94;
  background: #f4e9e6;
  color: #823f36;
}

@media (max-width: 980px) {
  .spin-masthead-grid {
    grid-template-columns: 1fr;
  }

  .spin-hero-copy {
    max-width: 43rem;
  }

  .spin-hero-art {
    grid-row: 2;
    min-height: 23rem;
  }
}

@media (max-width: 760px) {
  .spin-nav-links a:nth-child(1),
  .spin-nav-links a:nth-child(4) {
    display: none;
  }

  .spin-nav-links a:nth-child(3) {
    display: inline;
  }

  .spin-masthead {
    padding-top: 6.75rem;
  }

  .spin-hero-copy h1 {
    font-size: clamp(2.55rem, 12vw, 3.2rem);
  }

  .spin-hero-signal {
    inset: 2rem 1.5rem;
  }

  .spin-proof {
    min-height: 7rem;
  }

  .spin-method-steps article,
  .spin-method-steps article:last-child {
    border-color: var(--line);
  }
}

@media (max-width: 480px) {
  .spin-nav-inner {
    min-height: 3.65rem;
  }

  .spin-hero-art {
    min-height: 21rem;
  }

  .spin-proof strong {
    font-size: 1.5rem;
  }
}