/* Hero cover & byline refinements */
    .pr-hero-breadcrumb a {
      color: var(--sp-deep-sage);
      text-decoration: underline;
      text-underline-offset: 3px;
      font-weight: 800;
    }

    .pr-byline {
      margin-top: 14px;
      font-family: var(--font-heading);
      font-size: 14px;
      font-weight: 700;
      color: var(--sp-ink);
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: var(--sp-teal-tint);
      border: 1px solid var(--sp-border-subtle);
      padding: 6px 14px;
      border-radius: 999px;
    }

    .pr-hero-meta-links {
      margin-top: 16px;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 10px 20px;
    }

    .pr-store-link {
      font-family: var(--font-heading);
      font-size: 14px;
      font-weight: 700;
      color: var(--sp-deep-sage);
      text-decoration: underline;
      text-underline-offset: 4px;
    }

    .pr-small {
      font-size: 13.5px;
      line-height: 1.55;
      color: var(--sp-quiet);
    }

    /* Portrait book cover inside .sc-hero-photo */
    .pr-hero-visual {
      max-width: 420px;
    }

    .sc-hero-photo.pr-cover-frame {
      padding: 16px 16px 18px;
      background: var(--sp-white);
    }

    .sc-hero-photo.pr-cover-frame img {
      aspect-ratio: 720 / 932;
      object-fit: contain;
      background: var(--sp-cream);
      border: 1px solid var(--sp-border-subtle);
    }

    /* Section Headings */
    .pr-section-heading {
      max-width: 68ch;
      margin-bottom: clamp(28px, 4vw, 44px);
    }

    .pr-section-heading p:not(.sc-kicker) {
      margin-top: 14px;
      font-size: clamp(16.5px, 1.25vw, 18.5px);
      color: var(--sp-quiet);
      line-height: 1.65;
    }

    /* 2. Why / Benefits Section */
    .product-why {
      background: var(--sp-white);
      border-top: 1px solid var(--sp-border-subtle);
      border-bottom: 1px solid var(--sp-border-subtle);
    }

    .product-benefits {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
    }

    .product-benefits article {
      border-radius: var(--radius-lg);
      padding: clamp(24px, 3vw, 32px);
      border: 1px solid var(--sp-border-subtle);
      box-shadow: var(--sp-shadow-card);
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .product-benefits article:nth-child(1) {
      background: var(--sp-teal-tint);
    }

    .product-benefits article:nth-child(2) {
      background: var(--sp-sage-tint);
    }

    .product-benefits article:nth-child(3) {
      background: var(--sp-blush-tint);
    }

    .pr-benefit-num {
      width: 36px;
      height: 36px;
      border-radius: 10px;
      background: var(--sp-white);
      border: 1px solid var(--sp-border-subtle);
      font-family: var(--font-heading);
      font-size: 14px;
      font-weight: 800;
      color: var(--sp-ink);
      display: inline-grid;
      place-items: center;
    }

    .product-benefits article h3 {
      font-family: var(--font-heading);
      font-size: clamp(19px, 1.5vw, 22px);
      font-weight: 800;
      line-height: 1.25;
      color: var(--sp-ink);
    }

    .product-benefits article p {
      font-size: 15.5px;
      line-height: 1.65;
      color: var(--sp-ink);
    }

    /* 3. Worked Example Section */
    .product-example-grid {
      display: grid;
      grid-template-columns: 0.92fr 1.08fr;
      gap: clamp(28px, 4.5vw, 56px);
      align-items: start;
    }

    .product-example-intro p:not(.sc-kicker) {
      margin-top: 16px;
      font-size: 17.5px;
      line-height: 1.65;
      color: var(--sp-quiet);
    }

    .product-example-body {
      background: var(--sp-white);
      border: 1px solid var(--sp-border-subtle);
      border-radius: var(--radius-xl);
      padding: clamp(26px, 3.8vw, 42px);
      box-shadow: var(--sp-shadow-card);
      display: grid;
      gap: 16px;
      position: relative;
      overflow: hidden;
    }

    .product-example-body::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 6px;
      background: linear-gradient(90deg, var(--sp-dusty-teal), var(--sp-sage), var(--sp-butter));
    }

    .product-example-body blockquote {
      font-family: var(--font-serif-soft);
      font-style: italic;
      font-size: clamp(22px, 2.2vw, 28px);
      line-height: 1.35;
      color: var(--sp-ink);
      background: var(--sp-teal-tint);
      border-left: 4px solid var(--sp-deep-sage);
      padding: 20px 24px;
      border-radius: 0 var(--radius-md) var(--radius-md) 0;
    }

    .product-example-body h3 {
      font-family: var(--font-heading);
      font-size: 16px;
      font-weight: 800;
      text-transform: uppercase;
      letter-spacing: 0.04em;
      color: var(--sp-deep-sage);
      margin-top: 6px;
    }

    .product-example-body p {
      font-size: 16px;
      line-height: 1.65;
      color: var(--sp-ink);
    }

    .product-example-body .pr-small {
      padding-top: 12px;
      border-top: 1px solid var(--sp-border-subtle);
      color: var(--sp-quiet);
    }

    /* 4. Inside the Guide Preview Spreads */
    .product-inside-section {
      background: var(--sp-sage-tint);
      border-top: 1px solid var(--sp-border-subtle);
      border-bottom: 1px solid var(--sp-border-subtle);
    }

    .pr-preview-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .pr-preview-grid figure {
      background: var(--sp-white);
      border: 1px solid var(--sp-border-subtle);
      border-radius: var(--radius-lg);
      padding: 16px 16px 20px;
      box-shadow: var(--sp-shadow-card);
      display: flex;
      flex-direction: column;
      gap: 14px;
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }

    .pr-preview-grid figure:hover {
      transform: translateY(-3px);
      box-shadow: var(--sp-shadow-float);
    }

    .pr-preview-grid figure a {
      display: block;
      border-radius: var(--radius-sm);
      overflow: hidden;
      border: 1px solid var(--sp-border-subtle);
      background: var(--sp-cream);
    }

    .pr-preview-grid figure img {
      width: 100%;
      aspect-ratio: 660 / 855;
      object-fit: cover;
      display: block;
    }

    .pr-preview-grid figcaption {
      font-size: 14.5px;
      line-height: 1.55;
      color: var(--sp-quiet);
      padding-inline: 4px;
    }

    .pr-preview-grid figcaption strong {
      display: block;
      font-family: var(--font-heading);
      font-size: 16.5px;
      font-weight: 800;
      color: var(--sp-ink);
      margin-bottom: 4px;
    }

    .product-preview-link {
      margin-top: 28px;
      text-align: center;
    }

    /* 5. 17 Chapters & Contents */
    .product-contents-grid {
      display: grid;
      grid-template-columns: 0.85fr 1.15fr;
      gap: clamp(28px, 4.5vw, 56px);
      align-items: start;
    }

    .product-contents-copy p:not(.sc-kicker) {
      margin-top: 14px;
      font-size: 17px;
      color: var(--sp-quiet);
      line-height: 1.65;
    }

    .product-contents-copy .pr-small {
      margin-top: 18px;
      padding: 16px 18px;
      background: var(--sp-teal-tint);
      border: 1px solid var(--sp-border-subtle);
      border-radius: var(--radius-md);
      color: var(--sp-ink);
      font-size: 14px;
    }

    .product-content-list {
      list-style: none;
      margin: 0;
      padding: 0;
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 12px;
      counter-reset: chapter;
    }

    .product-content-list li {
      counter-increment: chapter;
      background: var(--sp-white);
      border: 1px solid var(--sp-border-subtle);
      border-radius: var(--radius-sm);
      padding: 12px 16px;
      font-family: var(--font-heading);
      font-size: 14.5px;
      font-weight: 700;
      color: var(--sp-ink);
      display: flex;
      align-items: center;
      gap: 12px;
      box-shadow: 0 2px 6px rgba(38, 49, 43, 0.03);
    }

    .product-content-list li::before {
      content: counter(chapter, decimal-leading-zero);
      font-size: 12px;
      font-weight: 800;
      background: var(--sp-teal-tint);
      color: var(--sp-deep-sage);
      border: 1px solid var(--sp-border-subtle);
      width: 30px;
      height: 30px;
      border-radius: 8px;
      display: inline-grid;
      place-items: center;
      flex-shrink: 0;
    }

    .product-content-list li:nth-child(3n+2)::before {
      background: var(--sp-sage-tint);
    }

    .product-content-list li:nth-child(3n)::before {
      background: var(--sp-blush-tint);
    }

    /* 6. How to Use Steps */
    .product-how-section {
      background: var(--sp-white);
      border-top: 1px solid var(--sp-border-subtle);
      border-bottom: 1px solid var(--sp-border-subtle);
    }

    .product-how-grid {
      display: grid;
      grid-template-columns: 0.85fr 1.15fr;
      gap: clamp(28px, 4.5vw, 56px);
      align-items: start;
    }

    .product-steps {
      list-style: none;
      margin: 0;
      padding: 0;
      display: grid;
      gap: 16px;
      counter-reset: step;
    }

    .product-steps li {
      counter-increment: step;
      background: var(--sp-cream);
      border: 1px solid var(--sp-border-subtle);
      border-radius: var(--radius-md);
      padding: 20px 24px;
      display: grid;
      grid-template-columns: 42px 1fr;
      gap: 16px;
      align-items: center;
      font-size: 16.5px;
      font-weight: 600;
      color: var(--sp-ink);
    }

    .product-steps li::before {
      content: counter(step);
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: var(--sp-dusty-teal);
      color: var(--sp-ink);
      font-family: var(--font-heading);
      font-size: 17px;
      font-weight: 800;
      display: grid;
      place-items: center;
      border: 2px solid var(--sp-white);
      box-shadow: var(--sp-shadow-card);
    }

    .product-steps li:nth-child(2)::before {
      background: var(--sp-butter);
    }

    .product-steps li:nth-child(3)::before {
      background: var(--sp-sage);
    }

    /* 7. Author Bio Card */
    .pr-author-card {
      background: var(--sp-white);
      border: 1px solid var(--sp-border-subtle);
      border-radius: var(--radius-xl);
      padding: clamp(26px, 4vw, 44px);
      box-shadow: var(--sp-shadow-card);
      display: grid;
      grid-template-columns: 220px 1fr;
      gap: clamp(24px, 3.5vw, 40px);
      align-items: center;
    }

    .pr-author-photo {
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 2px solid var(--sp-dusty-teal);
      background: var(--sp-teal-tint);
      box-shadow: var(--sp-shadow-card);
    }

    .pr-author-photo img {
      width: 100%;
      aspect-ratio: 3 / 4;
      object-fit: cover;
      display: block;
    }

    .pr-author-body p:not(.sc-kicker) {
      margin-top: 14px;
      font-size: 16.5px;
      line-height: 1.65;
      color: var(--sp-quiet);
    }

    .pr-author-body .sc-link {
      margin-top: 14px;
    }

    .product-author-note {
      margin-top: 18px;
      padding: 14px 20px;
      background: var(--sp-sage-tint);
      border-radius: var(--radius-md);
      border: 1px solid var(--sp-border-subtle);
      color: var(--sp-quiet);
      font-size: 13.5px;
    }

    /* 8. Standalone Purchase Card */
    .product-purchase-section {
      background: var(--sp-teal-tint);
      border-top: 1px solid var(--sp-border-subtle);
      border-bottom: 1px solid var(--sp-border-subtle);
    }

    .product-purchase-card {
      background: var(--sp-white);
      border: 1px solid var(--sp-border-subtle);
      border-radius: var(--radius-xl);
      padding: clamp(28px, 4vw, 48px);
      box-shadow: var(--sp-shadow-card);
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: clamp(24px, 4vw, 48px);
      align-items: center;
    }

    .product-purchase-meta {
      margin-top: 12px;
      font-family: var(--font-heading);
      font-size: 16px;
      font-weight: 700;
      color: var(--sp-quiet);
    }

    .product-purchase-box {
      background: var(--sp-cream);
      border: 1px solid var(--sp-border-subtle);
      border-radius: var(--radius-lg);
      padding: 26px 28px;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .pr-price {
      font-family: var(--font-heading);
      font-size: clamp(32px, 3.2vw, 42px);
      font-weight: 800;
      color: var(--sp-ink);
      line-height: 1.1;
    }

    .pr-price span {
      font-size: 15px;
      font-weight: 700;
      color: var(--sp-quiet);
      margin-left: 4px;
    }

    .product-purchase-box .sc-actions {
      margin-top: 4px;
    }

    .product-purchase-box .sc-button {
      width: 100%;
    }

    /* 9. Complete Four-Resource Bundle Cross-Sell */
    .pr-collection {
      background: var(--sp-cream);
    }

    .pr-collection-grid {
      display: grid;
      grid-template-columns: 1.08fr 0.92fr;
      gap: clamp(28px, 4.5vw, 52px);
      align-items: start;
    }

    .pr-collection-copy > p:not(.sc-kicker):not(.pr-small) {
      margin-top: 16px;
      font-size: 17px;
      line-height: 1.65;
      color: var(--sp-quiet);
    }

    .pr-included {
      list-style: none;
      margin: 24px 0 18px;
      padding: 0;
      display: grid;
      gap: 12px;
    }

    .pr-included li {
      background: var(--sp-white);
      border: 1px solid var(--sp-border-subtle);
      border-radius: var(--radius-md);
      padding: 16px 20px;
      box-shadow: 0 2px 8px rgba(38, 49, 43, 0.03);
      display: flex;
      flex-direction: column;
      gap: 4px;
    }

    .pr-included li:nth-child(2) {
      background: var(--sp-teal-tint);
      border-color: var(--sp-deep-sage);
    }

    .pr-included li strong {
      font-family: var(--font-heading);
      font-size: 16px;
      font-weight: 800;
      color: var(--sp-ink);
    }

    .pr-included li span {
      font-size: 14px;
      color: var(--sp-quiet);
    }

    .pr-collection-buy {
      background: var(--sp-white);
      border: 1px solid var(--sp-border-subtle);
      border-radius: var(--radius-xl);
      padding: clamp(24px, 3.5vw, 36px);
      box-shadow: var(--sp-shadow-card);
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .pr-four-books {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 10px;
      background: var(--sp-sage-tint);
      padding: 16px;
      border-radius: var(--radius-md);
      border: 1px solid var(--sp-border-subtle);
    }

    .pr-four-books img {
      width: 100%;
      aspect-ratio: 720 / 932;
      object-fit: cover;
      border-radius: 6px;
      box-shadow: 0 4px 10px rgba(38, 49, 43, 0.12);
      background: var(--sp-white);
    }

    .pr-saving {
      display: inline-block;
      align-self: flex-start;
      font-family: var(--font-heading);
      font-size: 13px;
      font-weight: 800;
      background: var(--sp-butter);
      color: var(--sp-ink);
      padding: 5px 12px;
      border-radius: 999px;
    }

    .pr-collection-buy .sc-button {
      width: 100%;
    }

    @media (max-width: 980px) {
      .product-benefits,
      .pr-preview-grid,
      .product-example-grid,
      .product-contents-grid,
      .product-how-grid,
      .product-purchase-card,
      .pr-collection-grid {
        grid-template-columns: 1fr;
      }

      .pr-author-card {
        grid-template-columns: 160px 1fr;
      }
    }

    @media (max-width: 640px) {
      .product-content-list {
        grid-template-columns: 1fr;
      }

      .pr-author-card {
        grid-template-columns: 1fr;
      }

      .pr-author-photo {
        max-width: 200px;
      }
    }