@layer pages {

  .puzzle {
    padding-block: clamp(2rem, 5vw, 4rem) clamp(4rem, 8vw, 6rem);
  }

  .puzzle__head {
    display: flex;
    flex-direction: column;
    gap: clamp(0.85rem, 1.5vw, 1.25rem);
    margin-bottom: clamp(2rem, 4vw, 3rem);
  }

  .puzzle__progress {
    font-family: var(--font-body);
    font-size: 0.625rem;
    font-weight: 500;
    letter-spacing: var(--track-wide);
    text-transform: uppercase;
    color: var(--mid);
    font-variant-numeric: tabular-nums;
    display: inline-flex;
    align-items: baseline;
    gap: 0.4rem;
  }

  .puzzle__progress-num {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    line-height: 1;
    color: var(--fg);
    letter-spacing: 0;
    font-variant-numeric: normal;
  }

  .puzzle__question {
    font-family: var(--font-serif);
    font-size: clamp(1.625rem, 3.6vw, 2.5rem);
    font-weight: 400;
    letter-spacing: -0.015em;
    line-height: 1.04;
    color: var(--fg);
    margin: 0;
    text-wrap: balance;
    max-width: 24ch;
  }

  .puzzle__head[hidden],
  .puzzle__round[hidden],
  .puzzle__summary[hidden] {
    display: none;
  }

  .puzzle__options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(1.5rem, 3vw, 2.5rem);
  }

  @media (width <= 1100px) {
    .puzzle__options {
      grid-template-columns: 1fr;
      gap: clamp(2rem, 5vw, 2.75rem);
      max-width: 56rem;
    }
  }

  @media (width <= 720px) {
    .puzzle__option {
      padding-inline: 0;
    }

    .puzzle__chart {
      aspect-ratio: 4 / 3;
    }

    .puzzle__verdict {
      top: 0;
      right: 0;
    }
  }

  .puzzle__option {
    background: none;
    border: 0;
    cursor: pointer;
    padding: clamp(1.5rem, 3vw, 2.25rem) clamp(1.25rem, 2.5vw, 2rem) clamp(1.5rem, 3vw, 2rem);
    text-align: left;
    font: inherit;
    color: inherit;
    position: relative;
    display: flex;
    flex-direction: column;
    gap: clamp(1rem, 2vw, 1.5rem);
    transition: background var(--t-fast) var(--ease);
  }

  .puzzle__option:hover,
  .puzzle__option:focus-visible {
    background: oklch(from var(--fg) l c h / 0.025);
  }

  .puzzle__option:focus-visible {
    outline: 2px solid oklch(from var(--fg) l c h / 0.45);
    outline-offset: 2px;
  }

  .puzzle__option.is-revealed {
    cursor: default;
  }

  .puzzle__option.is-revealed:hover,
  .puzzle__option.is-revealed:focus-visible {
    background: none;
  }

  .puzzle__option.is-skewed {
    background: oklch(0.62 0.13 75 / 0.05);
  }

  .puzzle__option.is-honest {
    background: oklch(0.55 0.13 145 / 0.05);
  }

  :root.dark .puzzle__option.is-skewed { background: oklch(0.74 0.13 75 / 0.07); }
  :root.dark .puzzle__option.is-honest { background: oklch(0.72 0.13 145 / 0.07); }
  @media (prefers-color-scheme: dark) {
    :root:not(.light) .puzzle__option.is-skewed { background: oklch(0.74 0.13 75 / 0.07); }
    :root:not(.light) .puzzle__option.is-honest { background: oklch(0.72 0.13 145 / 0.07); }
  }

  .puzzle__verdict {
    position: absolute;
    top: clamp(0.75rem, 1.5vw, 1rem);
    right: clamp(0.75rem, 1.5vw, 1rem);
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.3rem 0.55rem;
    font-family: var(--font-body);
    font-size: 0.5625rem;
    font-weight: 500;
    letter-spacing: var(--track-wide);
    text-transform: uppercase;
    color: var(--mid);
    opacity: 0;
    transition: opacity 320ms var(--ease);
  }

  .puzzle__option.is-revealed .puzzle__verdict {
    opacity: 1;
  }

  .puzzle__verdict::before {
    content: '';
    width: 0.4rem;
    height: 0.4rem;
    border-radius: 50%;
    background: currentColor;
    flex-shrink: 0;
  }

  .puzzle__option.is-skewed .puzzle__verdict {
    color: oklch(0.5 0.13 75);
  }

  .puzzle__option.is-honest .puzzle__verdict {
    color: oklch(0.42 0.13 145);
  }

  :root.dark .puzzle__option.is-skewed .puzzle__verdict { color: oklch(0.74 0.13 75); }
  :root.dark .puzzle__option.is-honest .puzzle__verdict { color: oklch(0.72 0.13 145); }
  @media (prefers-color-scheme: dark) {
    :root:not(.light) .puzzle__option.is-skewed .puzzle__verdict { color: oklch(0.74 0.13 75); }
    :root:not(.light) .puzzle__option.is-honest .puzzle__verdict { color: oklch(0.72 0.13 145); }
  }

  .puzzle__figure {
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: clamp(0.85rem, 1.6vw, 1.1rem);
  }

  .puzzle__chart {
    width: 100%;
    height: auto;
    aspect-ratio: 3 / 2;
    display: block;
    background: none;
    border: 0;
  }

  .puzzle__caption {
    font-family: var(--font-body);
    font-size: 0.625rem;
    line-height: 1.4;
    margin: 0;
    padding-top: clamp(0.6rem, 1.2vw, 0.85rem);
    border-top: 1px solid oklch(from var(--fg) l c h / 0.1);
    display: flex;
    align-items: baseline;
    gap: 0.6rem;
  }

  .puzzle__caption-label {
    font-weight: 500;
    letter-spacing: var(--track-wide);
    text-transform: uppercase;
    color: var(--mid);
  }

  .puzzle__caption-source {
    font-weight: 500;
    letter-spacing: var(--track-wide);
    text-transform: uppercase;
    color: var(--fg);
  }

  .puzzle__reveal[hidden] { display: none; }

  .puzzle__reveal {
    margin-top: clamp(2rem, 4vw, 3rem);
    padding-top: clamp(1.5rem, 3vw, 2.25rem);
    border-top: 1px solid var(--line);
    display: flex;
    flex-direction: column;
    gap: clamp(1.25rem, 2.5vw, 1.75rem);
    animation: revealIn 480ms var(--ease-expo) both;
  }

  @keyframes revealIn {
    from { opacity: 0; transform: translateY(10px); }
    to   { opacity: 1; transform: none; }
  }

  @media (prefers-reduced-motion: reduce) {
    .puzzle__reveal { animation: none; }
  }

  .puzzle__technique {
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
    margin: 0;
  }

  .puzzle__technique-kicker {
    font-family: var(--font-body);
    font-size: 0.625rem;
    font-weight: 500;
    letter-spacing: var(--track-wide);
    text-transform: uppercase;
    color: var(--mid);
  }

  .puzzle__technique-name {
    font-family: var(--font-serif);
    font-size: clamp(1.4rem, 2.6vw, 1.875rem);
    font-weight: 400;
    letter-spacing: -0.01em;
    line-height: 1.06;
    color: var(--fg);
  }

  .puzzle__explanation {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(1.5rem, 3vw, 2.5rem);
    max-width: 80rem;
  }

  @media (width <= 720px) {
    .puzzle__explanation {
      grid-template-columns: 1fr;
    }
  }

  .puzzle__rev-block {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
  }

  .puzzle__rev-heading {
    font-family: var(--font-body);
    font-size: 0.625rem;
    font-weight: 500;
    letter-spacing: var(--track-wide);
    text-transform: uppercase;
    color: var(--mid);
    margin: 0;
  }

  .puzzle__rev-block p {
    font-family: var(--font-body);
    font-size: clamp(0.9375rem, 1.05vw, 1.0625rem);
    line-height: 1.65;
    color: oklch(from var(--fg) l c h / 0.8);
    max-width: 60ch;
    margin: 0;
  }

  .puzzle__rev-block p + p {
    margin-top: 0.85rem;
  }

  .puzzle__advance {
    display: inline-flex;
    align-items: center;
    align-self: flex-start;
    gap: clamp(0.65rem, 1.4vw, 0.9rem);
    margin-top: 0.5rem;
    padding: 0.85rem clamp(1.25rem, 3vw, 1.75rem);
    border: 1px solid var(--fg);
    background: transparent;
    cursor: pointer;
    font-family: var(--font-body);
    font-size: 0.6875rem;
    font-weight: 500;
    letter-spacing: var(--track-wide);
    text-transform: uppercase;
    color: var(--fg);
    transition:
      background var(--t-fast) var(--ease),
      color      var(--t-fast) var(--ease),
      gap        var(--t-fast) var(--ease);
  }

  .puzzle__advance svg {
    width: 14px;
    height: 14px;
    transition: transform var(--t-fast) var(--ease);
  }

  .puzzle__advance:hover,
  .puzzle__advance:focus-visible {
    background: var(--fg);
    color: var(--bg);
    gap: clamp(0.95rem, 1.8vw, 1.2rem);
  }

  .puzzle__advance:hover svg,
  .puzzle__advance:focus-visible svg {
    transform: translateX(3px);
  }

  /* Summary screen */
  .puzzle__summary {
    display: flex;
    flex-direction: column;
    gap: clamp(1.5rem, 3vw, 2.25rem);
    padding-top: clamp(1.5rem, 3vw, 2rem);
  }

  .puzzle__summary-heading {
    font-family: var(--font-serif);
    font-size: clamp(1.875rem, 4.5vw, 3rem);
    font-weight: 400;
    letter-spacing: -0.02em;
    line-height: 1.04;
    color: var(--fg);
    margin: 0;
    text-wrap: balance;
    max-width: 22ch;
  }

  .puzzle__score {
    display: flex;
    align-items: baseline;
    gap: 0.7rem;
    font-family: var(--font-serif);
    margin: 0;
  }

  .puzzle__score-num {
    font-size: clamp(3rem, 7vw, 5rem);
    font-weight: 400;
    line-height: 1;
    letter-spacing: -0.025em;
    color: var(--fg);
    font-variant-numeric: tabular-nums;
  }

  .puzzle__score-of {
    font-family: var(--font-body);
    font-size: 0.625rem;
    font-weight: 500;
    letter-spacing: var(--track-wide);
    text-transform: uppercase;
    color: var(--mid);
  }

  .puzzle__recap {
    list-style: none;
    padding: 0;
    margin: 0;
    border-top: 1px solid var(--line);
  }

  .puzzle__recap li {
    display: grid;
    grid-template-columns: 2.5rem 1fr auto;
    align-items: baseline;
    column-gap: clamp(0.85rem, 2vw, 1.5rem);
    padding-block: clamp(1rem, 2vw, 1.4rem);
    border-bottom: 1px solid var(--line);
  }

  .puzzle__recap-num {
    font-family: var(--font-serif);
    font-size: 0.875rem;
    color: oklch(from var(--fg) l c h / 0.45);
    font-variant-numeric: tabular-nums;
  }

  .puzzle__recap-name {
    font-family: var(--font-serif);
    font-size: clamp(1.0625rem, 1.5vw, 1.25rem);
    color: var(--fg);
    text-wrap: balance;
  }

  .puzzle__recap-result {
    font-family: var(--font-body);
    font-size: 0.5625rem;
    font-weight: 500;
    letter-spacing: var(--track-wide);
    text-transform: uppercase;
    color: var(--mid);
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    white-space: nowrap;
  }

  .puzzle__recap-result::before {
    content: '';
    width: 0.4rem;
    height: 0.4rem;
    border-radius: 50%;
    background: currentColor;
    flex-shrink: 0;
  }

  .puzzle__recap li[data-result="correct"] .puzzle__recap-result {
    color: oklch(0.42 0.13 145);
  }

  .puzzle__recap li[data-result="missed"] .puzzle__recap-result {
    color: oklch(0.5 0.13 75);
  }

  :root.dark .puzzle__recap li[data-result="correct"] .puzzle__recap-result { color: oklch(0.72 0.13 145); }
  :root.dark .puzzle__recap li[data-result="missed"] .puzzle__recap-result { color: oklch(0.74 0.13 75); }
  @media (prefers-color-scheme: dark) {
    :root:not(.light) .puzzle__recap li[data-result="correct"] .puzzle__recap-result { color: oklch(0.72 0.13 145); }
    :root:not(.light) .puzzle__recap li[data-result="missed"] .puzzle__recap-result { color: oklch(0.74 0.13 75); }
  }

  /* SVG chart styles */
  .puzzle__chart text {
    font-family: var(--font-body);
  }

  .puzzle__chart-title {
    font-family: var(--font-serif);
    font-size: 13px;
    fill: var(--fg);
    font-weight: 400;
    letter-spacing: -0.005em;
  }

  .puzzle__chart-subtitle {
    font-size: 8px;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    fill: oklch(from var(--fg) l c h / 0.5);
  }

  .puzzle__chart-tick {
    font-size: 8.5px;
    fill: oklch(from var(--fg) l c h / 0.6);
    letter-spacing: 0.04em;
    font-variant-numeric: tabular-nums;
  }

  .puzzle__chart-axis-line {
    stroke: oklch(from var(--fg) l c h / 0.35);
    stroke-width: 0.4;
    fill: none;
  }

  .puzzle__chart-grid {
    stroke: oklch(from var(--fg) l c h / 0.08);
    stroke-width: 0.4;
    fill: none;
  }

  .puzzle__chart-bar {
    fill: oklch(from var(--fg) l c h / 0.82);
  }

  .puzzle__chart-line {
    fill: none;
    stroke: var(--fg);
    stroke-width: 1.5;
    stroke-linecap: round;
    stroke-linejoin: round;
  }

  .puzzle__chart-line--secondary {
    stroke: var(--accent-cover);
    stroke-dasharray: 4 3;
    stroke-width: 1.5;
  }

  .puzzle__chart-area {
    fill: oklch(from var(--fg) l c h / 0.06);
    stroke: none;
  }

  .puzzle__chart-marker {
    fill: var(--fg);
    r: 2;
  }

  .puzzle__chart-marker--accent {
    fill: var(--accent-cover);
    r: 2;
  }

  .puzzle__chart-legend {
    font-size: 8.5px;
    fill: oklch(from var(--fg) l c h / 0.65);
    letter-spacing: 0.04em;
  }

  .puzzle__chart-divider {
    stroke: oklch(from var(--fg) l c h / 0.12);
    stroke-width: 0.4;
  }

  .puzzle__intro {
    font-family: var(--font-body);
    font-size: clamp(0.9375rem, 1.05vw, 1.0625rem);
    line-height: 1.65;
    color: oklch(from var(--fg) l c h / 0.78);
    max-width: 60ch;
    margin: 0 0 clamp(2rem, 4vw, 3rem);
  }

}