.whitepapers-page {
  --paper-accent: #01cdfe;
  --paper-accent-soft: rgba(1, 205, 254, 0.12);
  --paper-accent-border: rgba(1, 205, 254, 0.22);
  --paper-secondary: #ff71ce;
  --paper-secondary-soft: rgba(255, 113, 206, 0.12);
  --paper-headline-font: "Barlow Condensed", "Arial Narrow", "Helvetica Neue", sans-serif;

  .whitepapers-hero {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(260px, 0.52fr);
    gap: var(--space-xl);
    align-items: end;
    overflow: hidden;
    background:
      radial-gradient(circle at top right, var(--paper-secondary-soft), transparent 24%),
      radial-gradient(circle at 18% 0%, var(--paper-accent-soft), transparent 32%),
      linear-gradient(180deg, var(--color-bg-secondary) 0%, var(--color-primary-dark) 100%);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    margin-bottom: var(--space-2xl);
    text-align: left;
  }

  .whitepapers-hero::before {
    content: "";
    position: absolute;
    inset: 0 0 auto 0;
    height: 3px;
    background: linear-gradient(90deg, var(--paper-accent) 0%, var(--paper-secondary) 100%);
  }

  .hero-copy {
    position: relative;
    z-index: 1;
  }

  .page-kicker,
  .section-kicker {
    margin: 0 0 var(--space-md);
    color: var(--paper-accent);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.16em;
    text-transform: uppercase;
  }

  .whitepapers-hero h1 {
    margin: 0 0 var(--space-lg);
    font-family: var(--paper-headline-font);
    font-weight: 700;
    letter-spacing: 0.01em;
    text-transform: uppercase;
    color: var(--color-text-primary);
    font-size: 3.2rem;
    line-height: 1.05;
  }

  .tagline {
    max-width: 42rem;
    margin: 0;
    color: var(--color-text-secondary);
    font-size: 1.2rem;
    line-height: 1.7;
  }

  .hero-aside {
    position: relative;
    z-index: 1;
    background: var(--color-primary-dark);
    border: 1px solid var(--color-border);
    border-top: 3px solid var(--paper-accent);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
  }

  .hero-aside-label {
    display: inline-block;
    margin-bottom: var(--space-md);
    color: var(--paper-secondary);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
  }

  .hero-aside p {
    margin: 0;
    color: var(--color-text-secondary);
    line-height: 1.65;
  }

  .hero-aside strong {
    color: var(--paper-accent);
  }

  .whitepapers-section {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    margin-bottom: var(--space-2xl);
  }

  .section-intro {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(18rem, 0.8fr);
    gap: var(--space-xl);
    align-items: start;
    margin-bottom: var(--space-xl);
  }

  .section-intro h2 {
    margin: 0;
    font-family: var(--paper-headline-font);
    font-weight: 700;
    letter-spacing: 0.015em;
    text-transform: uppercase;
    color: var(--color-text-primary);
    font-size: 2rem;
    text-align: left;
    background: none;
    -webkit-text-fill-color: initial;
  }

  .section-summary {
    margin: 0;
    padding: var(--space-lg) var(--space-xl);
    background: linear-gradient(90deg, var(--paper-accent-soft) 0%, rgba(255, 113, 206, 0.04) 100%);
    border: 1px solid rgba(1, 205, 254, 0.12);
    border-left: 3px solid var(--paper-accent);
    border-radius: var(--radius-lg);
    color: var(--color-text-muted);
    line-height: 1.7;
  }

  .reading-path {
    display: block;
    margin-bottom: var(--space-2xl);
    padding: var(--space-xl);
    background: var(--color-primary-dark);
    border: 1px solid var(--color-border);
    border-top: 3px solid var(--paper-accent);
    border-radius: var(--radius-lg);
  }

  .reading-path-header {
    display: grid;
    gap: var(--space-sm);
    margin-bottom: var(--space-xl);
  }

  .reading-path-header h3 {
    margin: 0 0 var(--space-md);
    font-family: var(--paper-headline-font);
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--paper-accent);
    font-size: 1.2rem;
  }

  .reading-path-header p {
    margin: 0;
    color: var(--color-text-secondary);
    line-height: 1.65;
  }

  .reading-path-list {
    display: grid;
    gap: var(--space-md);
    grid-template-columns: repeat(3, minmax(0, 1fr));
    margin: 0;
    padding: 0;
    list-style: none;
  }

  .reading-path-list li {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: var(--space-md);
    align-items: start;
    padding: var(--space-lg);
    background: linear-gradient(180deg, rgba(1, 205, 254, 0.06) 0%, rgba(10, 14, 39, 0) 100%), var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    min-height: 100%;
    border-radius: var(--radius-md);
  }

  .path-step,
  .category-index {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.2rem;
    height: 2.2rem;
    border-radius: 999px;
    background: var(--paper-accent-soft);
    border: 1px solid var(--paper-accent-border);
    color: var(--paper-accent);
    font-weight: 700;
    flex-shrink: 0;
  }

  .reading-path-list strong {
    display: block;
    margin-bottom: var(--space-xs);
    color: var(--color-text-primary);
  }

  .reading-path-list p {
    margin: 0;
    color: var(--color-text-muted);
    line-height: 1.55;
  }

  .paper-category {
    margin-top: var(--space-2xl);
    padding-top: var(--space-2xl);
    border-top: 1px solid var(--color-border);
  }

  .paper-category:first-of-type {
    margin-top: 0;
  }

  .category-heading {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: var(--space-md);
    align-items: start;
    margin-bottom: var(--space-xl);
  }

  .category-heading h3 {
    margin: 0 0 var(--space-xs);
    font-family: var(--paper-headline-font);
    font-weight: 700;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    color: var(--color-text-primary);
    border: 0;
    padding: 0;
    font-size: 1.5rem;
  }

  .category-summary {
    margin: 0;
    color: var(--color-text-muted);
    line-height: 1.65;
  }

  .paper-stack {
    display: grid;
    gap: var(--space-lg);
  }

  .paper-item {
    display: grid;
    grid-template-columns: minmax(0, 11rem) minmax(0, 1fr) auto;
    gap: var(--space-lg);
    align-items: start;
    padding: var(--space-xl);
    margin-bottom: 0;
    background: var(--color-primary-dark);
    border: 1px solid var(--color-border);
    border-left: 3px solid var(--paper-accent);
    border-radius: var(--radius-lg);
    transition:
      border-color var(--transition-fast),
      box-shadow var(--transition-fast);
  }

  .paper-item:hover {
    border-left-color: var(--paper-secondary);
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.18);
  }

  .paper-item--featured {
    border-left-color: var(--paper-secondary);
  }

  .paper-rail {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    align-content: start;
  }

  .paper-badge {
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    padding: 0 var(--space-md);
    border-radius: 999px;
    background: var(--paper-accent-soft);
    border: 1px solid var(--paper-accent-border);
    color: var(--paper-accent);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
  }

  .paper-badge--muted {
    background: rgba(148, 163, 184, 0.08);
    border-color: rgba(148, 163, 184, 0.14);
    color: var(--color-text-muted);
  }

  .paper-badge--accent {
    background: var(--paper-secondary-soft);
    border-color: rgba(1, 205, 254, 0.22);
    color: var(--paper-secondary);
  }

  .paper-body {
    min-width: 0;
  }

  .paper-item .title {
    margin: 0 0 var(--space-sm);
    font-family: var(--paper-headline-font);
    font-weight: 600;
    letter-spacing: 0.015em;
    text-transform: uppercase;
    color: var(--color-text-primary);
    font-size: 1.3rem;
    line-height: 1.2;
  }

  .paper-item .author {
    margin: 0 0 var(--space-md);
    color: var(--paper-secondary);
    font-size: 0.95rem;
  }

  .paper-item .description {
    margin: 0 0 var(--space-md);
    color: var(--color-text-secondary);
    line-height: 1.7;
  }

  .paper-note {
    margin: 0;
    padding-left: var(--space-md);
    border-left: 2px solid var(--color-border);
    color: var(--color-text-muted);
    line-height: 1.6;
  }

  .paper-note strong {
    color: var(--color-text-secondary);
  }

  .paper-item .link {
    align-self: center;
    justify-self: end;
    display: inline-flex;
    align-items: center;
    padding: var(--space-sm) var(--space-lg);
    border: 1px solid var(--color-border);
    border-radius: 999px;
    color: var(--paper-accent);
    background: transparent;
    white-space: nowrap;
    text-decoration: none;
    font-weight: 600;
    transition:
      background var(--transition-fast),
      color var(--transition-fast),
      transform var(--transition-fast);
  }

  .paper-item .link:hover {
    background: var(--paper-accent-soft);
    color: var(--paper-secondary);
    transform: translateX(2px);
  }

  @media (max-width: 1024px) {
    .whitepapers-hero,
    .section-intro,
    .paper-item {
      grid-template-columns: 1fr;
    }

    .reading-path-list {
      grid-template-columns: 1fr;
    }

    .paper-item .link {
      justify-self: start;
    }
  }

  @media (max-width: 768px) {
    .whitepapers-hero h1 {
      font-size: 2.4rem;
    }

    .tagline {
      font-size: 1.05rem;
    }

    .whitepapers-section,
    .reading-path,
    .paper-item,
    .hero-note {
      padding: var(--space-xl);
    }
  }

  @media (prefers-reduced-motion: reduce) {
    .paper-item,
    .paper-item .link {
      transition: none;
    }

    .paper-item:hover,
    .paper-item .link:hover {
      transform: none;
    }
  }
}