/* ─── Reset & Base ─── */
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

    :root {
      --navy:       #0F2744;
      --navy-mid:   #1B3A5C;
      --teal:       #00A878;
      --teal-dark:  #008862;
      --teal-pale:  #E6F7F2;
      --white:      #FFFFFF;
      --off-white:  #F6F9F8;
      --border:     #DDE7E3;
      --text-dark:  #0F2744;
      --text-mid:   #3D5669;
      --text-muted: #6B8090;
      --amber:      #B45309;
      --amber-pale: #FEF3C7;
      --amber-border:#F59E0B;
      --transition: 180ms ease-out;
      --font: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    }

    

    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
      }
    }

    

    /* ─── Page Header ─── */
    .page-header {
      background: var(--navy);
      padding: 4.5rem 2rem 4rem;
      position: relative;
      overflow: hidden;
    }

    .page-header::before {
      content: '';
      position: absolute;
      top: -80px;
      right: -60px;
      width: 400px;
      height: 400px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(0,168,120,0.12) 0%, transparent 70%);
      pointer-events: none;
    }

    .page-header-inner {
      max-width: 800px;
      margin: 0 auto;
      position: relative;
      z-index: 1;
    }

    .page-eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      font-size: 0.75rem;
      font-weight: 700;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      color: var(--teal);
      margin-bottom: 1.25rem !important;
    }

    .page-eyebrow a {
      color: rgba(255,255,255,0.4);
      text-decoration: none;
      transition: color var(--transition);
    }
    .page-eyebrow a:hover { color: rgba(255,255,255,0.7); }

    .page-eyebrow-sep {
      color: rgba(255,255,255,0.25);
      font-weight: 400;
    }

    .page-headline {
      font-size: clamp(2rem, 4vw, 3rem);
      font-weight: 800;
      color: var(--white);
      line-height: 1.13;
      letter-spacing: -0.03em;
      margin-bottom: 1.125rem !important;
    }

    .page-subheadline {
      font-size: 1.0625rem;
      color: rgba(255,255,255,0.6);
      line-height: 1.75;
      max-width: 580px;
      margin-bottom: 2rem !important;
    }

    .page-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 1.5rem;
      padding-top: 1.5rem !important;
      border-top: 1px solid rgba(255,255,255,0.12);
    }

    .meta-item {
      font-size: 0.8125rem;
      color: rgba(255,255,255,0.45);
    }

    .meta-item strong {
      color: rgba(255,255,255,0.7);
      font-weight: 600;
    }

    /* ─── Layout ─── */
    .page-body {
      max-width: 1200px;
      margin: 0 auto;
      padding: 3.5rem 2rem 5rem !important;
      display: grid;
      grid-template-columns: 240px 1fr;
      gap: 4.5rem;
      align-items: start;
    }

    /* ─── TOC Sidebar ─── */
    .toc-sidebar {
      position: sticky;
      top: 86px;
    }

    .toc-label {
      font-size: 0.6875rem;
      font-weight: 700;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      color: var(--text-muted);
      margin-bottom: 0.875rem !important;
    }

    .toc-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 0.125rem;
    }

    .toc-list a {
      display: block;
      font-size: 0.875rem;
      color: var(--text-muted);
      text-decoration: none;
      padding: 0.35rem 0.75rem !important;
      border-left: 2px solid var(--border);
      border-radius: 0 4px 4px 0;
      transition: color var(--transition), border-color var(--transition), background var(--transition);
      line-height: 1.45;
    }

    .toc-list a:hover {
      color: var(--navy);
      border-left-color: var(--teal);
      background: var(--teal-pale);
    }

    .toc-list a:focus-visible { outline: 2px solid var(--teal); outline-offset: 2px; }

    .toc-list a.active {
      color: var(--teal-dark);
      border-left-color: var(--teal);
      background: var(--teal-pale);
      font-weight: 600;
    }

    .toc-sub {
      list-style: none;
      margin-top: 0.125rem;
      margin-left: 0.75rem;
      display: flex;
      flex-direction: column;
      gap: 0.125rem;
    }

    .toc-sub a {
      font-size: 0.8125rem;
      padding: 0.275rem 0.625rem !important;
    }

    .toc-contact-block {
      margin-top: 2rem;
      padding: 1rem !important;
      background: var(--teal-pale);
      border: 1px solid #C3E8DA;
      border-radius: 8px;
    }

    .toc-contact-label {
      font-size: 0.75rem;
      font-weight: 700;
      color: var(--teal-dark);
      margin-bottom: 0.375rem !important;
    }

    .toc-contact-email {
      font-size: 0.875rem;
      color: var(--navy);
      text-decoration: none;
      font-weight: 600;
      word-break: break-all;
    }
    .toc-contact-email:hover { color: var(--teal-dark); }

    /* ─── Article ─── */
    .editorial-article {
      min-width: 0;
    }

    .article-section {
      margin-bottom: 3.5rem !important;
      scroll-margin-top: 100px;
	 padding: 0 !important;
    }

    .article-section:last-child { margin-bottom: 0; }

    .section-divider {
      height: 1px;
      background: var(--border);
      margin-bottom: 2.5rem !important;
    }

    /* Section heading hierarchy */
    .article-h2 {
      font-size: 1.625rem;
      font-weight: 800;
      color: var(--navy);
      letter-spacing: -0.025em;
      line-height: 1.2;
      margin-bottom: 1rem !important;
    }

    .article-h3 {
      font-size: 1.125rem;
      font-weight: 700;
      color: var(--navy);
      line-height: 1.3;
      margin-top: 2rem;
      margin-bottom: 0.625rem !important;
    }

    .article-section > .article-h3:first-of-type {
      margin-top: 0;
    }

    .article-p {
      font-size: 1rem;
      color: var(--text-mid);
      line-height: 1.78;
      margin-bottom: 1rem !important;
    }

    .article-p:last-child { margin-bottom: 0; }

    /* Lead paragraph */
    .lead-p {
      font-size: 1.0625rem;
      color: var(--text-mid);
      line-height: 1.78;
      margin-bottom: 1.25rem !important;
    }

    /* ─── Steps List ─── */
    .steps-list {
      list-style: none;
      margin: 1.25rem 0;
      display: flex;
      flex-direction: column;
      gap: 1rem;
    }

    .step-item {
      display: grid;
      grid-template-columns: 36px 1fr;
      gap: 1rem;
      align-items: start;
    }

    .step-num {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: var(--teal-pale);
      border: 2px solid #C3E8DA;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.75rem;
      font-weight: 800;
      color: var(--teal-dark);
      flex-shrink: 0;
      margin-top: 2px;
      font-variant-numeric: tabular-nums;
    }

    .step-body { }

    .step-title {
      font-size: 0.9375rem;
      font-weight: 700;
      color: var(--navy);
      margin-bottom: 0.25rem !important;
    }

    .step-desc {
      font-size: 0.9375rem;
      color: var(--text-mid);
      line-height: 1.65;
    }

    /* ─── Bullet List ─── */
    .article-ul {
      list-style: none;
      margin: 0.75rem 0 1rem;
      display: flex;
      flex-direction: column;
      gap: 0.5rem;
    }

    .article-ul li {
      display: flex;
      align-items: flex-start;
      gap: 0.625rem;
      font-size: 0.9375rem;
      color: var(--text-mid);
      line-height: 1.65;
    }

    .article-ul li::before {
      content: '';
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--teal);
      flex-shrink: 0;
      margin-top: 0.55em !important;
    }

    /* ─── Tables ─── */
    .table-wrap {
      overflow-x: auto;
      margin: 1.25rem 0;
      border: 1px solid var(--border);
      border-radius: 10px;
    }

    .article-table {
      width: 100%;
      border-collapse: collapse;
      font-size: 0.9375rem;
    }

    .article-table thead {
      background: var(--navy);
    }

    .article-table thead th {
      padding: 0.875rem 1.125rem;
      text-align: left;
      font-size: 0.75rem;
      font-weight: 700;
      letter-spacing: 0.07em;
      text-transform: uppercase;
      color: rgba(255,255,255,0.75);
      white-space: nowrap;
    }

    .article-table thead th:first-child { border-radius: 9px 0 0 0; }
    .article-table thead th:last-child  { border-radius: 0 9px 0 0; }

    .article-table tbody tr {
      border-bottom: 1px solid var(--border);
    }

    .article-table tbody tr:last-child { border-bottom: none; }

    .article-table tbody tr:nth-child(even) {
      background: var(--off-white);
    }

    .article-table tbody td {
      padding: 0.875rem 1.125rem;
      color: var(--text-mid);
      line-height: 1.55;
      vertical-align: top;
    }

    .article-table tbody td:first-child {
      font-weight: 600;
      color: var(--text-dark);
    }

    /* ─── Callout Blocks ─── */
    .callout {
      border-radius: 10px;
      padding: 1.5rem 1.625rem;
      margin: 1.5rem 0;
      display: grid;
      grid-template-columns: 24px 1fr;
      gap: 1rem;
      align-items: start;
    }

    .callout-icon {
      flex-shrink: 0;
      margin-top: 2px;
    }

    .callout-content { }

    .callout-title {
      font-size: 0.875rem;
      font-weight: 800;
      letter-spacing: 0.03em;
      text-transform: uppercase;
      margin-bottom: 0.5rem !important;
    }

    .callout-body {
      font-size: 0.9375rem;
      line-height: 1.72;
    }

    .callout-body p + p { margin-top: 0.75rem; }

    /* Warning (amber) */
    .callout-warning {
      background: var(--amber-pale);
      border: 1px solid var(--amber-border);
    }
    .callout-warning .callout-title { color: var(--amber); }
    .callout-warning .callout-body  { color: #78350F; }

    /* Info (teal) */
    .callout-info {
      background: var(--teal-pale);
      border: 1px solid #C3E8DA;
    }
    .callout-info .callout-title { color: var(--teal-dark); }
    .callout-info .callout-body  { color: #065F46; }

    /* Neutral (navy) */
    .callout-neutral {
      background: #EEF3F8;
      border: 1px solid #CBD8E6;
    }
    .callout-neutral .callout-title { color: var(--navy); }
    .callout-neutral .callout-body  { color: var(--navy-mid); }

    /* ─── Principles Grid ─── */
    .principles-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 1rem;
      margin: 1.25rem 0 !important;
    }

    .principle-card {
      background: var(--off-white);
      border: 1px solid var(--border);
      border-radius: 10px;
      padding: 1.25rem 1.375rem;
      transition: border-color var(--transition);
    }

    .principle-card:hover { border-color: var(--teal); }

    .principle-title {
      font-size: 0.9375rem;
      font-weight: 700;
      color: var(--navy);
      margin-bottom: 0.375rem !important;
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }

    .principle-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--teal);
      flex-shrink: 0;
    }

    .principle-desc {
      font-size: 0.875rem;
      color: var(--text-mid);
      line-height: 1.65;
    }

    /* ─── Source Priority Note ─── */
    .source-note {
      font-size: 0.8125rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-top: 0.75rem !important;
      padding-left: 0.875rem !important;
      border-left: 2px solid var(--border);
    }

    /* ─── Correction Tiers ─── */
    .correction-list {
      list-style: none;
      margin: 1rem 0 !important;
      display: flex;
      flex-direction: column;
      gap: 0.875rem;
    }

    .correction-item {
      display: grid;
      grid-template-columns: 10px 1fr;
      gap: 0.875rem;
      align-items: start;
      padding: 1rem 1.125rem !important;
      border-radius: 8px;
      border: 1px solid var(--border);
      background: var(--off-white);
    }

    .correction-dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      flex-shrink: 0;
      margin-top: 4px;
    }

    .dot-low    { background: #10B981; }
    .dot-mid    { background: #F59E0B; }
    .dot-high   { background: #EF4444; }

    .correction-label {
      font-size: 0.875rem;
      font-weight: 700;
      color: var(--navy);
      margin-bottom: 0.25rem !important;
    }

    .correction-desc {
      font-size: 0.875rem;
      color: var(--text-mid);
      line-height: 1.6;
    }

    /* ─── Contact Block ─── */
    .contact-block {
      margin-top: 1.25rem;
      display: inline-flex;
      align-items: center;
      gap: 0.625rem;
      background: var(--teal-pale);
      border: 1px solid #C3E8DA;
      border-radius: 8px;
      padding: 0.875rem 1.25rem !important;
    }

    .contact-block a {
      font-size: 0.9375rem;
      font-weight: 700;
      color: var(--teal-dark);
      text-decoration: none;
    }
    .contact-block a:hover { text-decoration: underline; }

    /* ─── Footer ─── */
    .footer {
      background: var(--navy);
      color: rgba(255, 255, 255, 0.55);
      padding: 3.5rem 2rem 2.5rem;
    }

    .footer-inner { max-width: 1200px; margin: 0 auto; }

    .footer-top {
      display: flex;
      align-items: flex-start;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 2.5rem;
      padding-bottom: 2rem;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
      margin-bottom: 2rem;
    }

    .footer-brand { max-width: 320px; }

    .footer-logo {
      display: inline-block;
      font-size: 1.15rem;
      font-weight: 800;
      color: var(--white);
      text-decoration: none;
      letter-spacing: -0.02em;
      margin-bottom: 0.75rem;
    }
    .footer-logo span { color: var(--teal); }

    .footer-tagline {
      font-size: 0.875rem;
      line-height: 1.65;
      color: rgba(255, 255, 255, 0.45);
    }

    .footer-nav {
      display: flex;
      gap: 3.5rem;
      flex-wrap: wrap;
    }

    .footer-nav-group {
      display: flex;
      flex-direction: column;
      gap: 0.6rem;
    }

    .footer-nav-label {
      font-size: 0.6875rem;
      font-weight: 700;
      letter-spacing: 0.09em;
      text-transform: uppercase;
      color: rgba(255, 255, 255, 0.35);
      margin-bottom: 0.25rem;
    }

    .footer-nav-group a {
      font-size: 0.875rem;
      color: rgba(255, 255, 255, 0.55);
      text-decoration: none;
      transition: color var(--transition);
    }
    .footer-nav-group a:hover { color: var(--white); }
    .footer-nav-group a:focus-visible { outline: 2px solid var(--teal); outline-offset: 2px; border-radius: 2px; }

    .footer-bottom {
      display: flex;
      align-items: flex-start;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 1rem;
    }

    .footer-disclaimer {
      font-size: 0.8125rem;
      color: rgba(255, 255, 255, 0.35);
      line-height: 1.65;
      max-width: 620px;
    }

    .footer-copyright {
      font-size: 0.8125rem;
      color: rgba(255, 255, 255, 0.28);
      white-space: nowrap;
    }

    /* ─── Responsive ─── */
    @media (max-width: 900px) {
      .page-body {
        grid-template-columns: 1fr;
        gap: 0;
        padding-top: 0;
      }

      .toc-sidebar {
        position: static;
        background: var(--off-white);
        border-bottom: 1px solid var(--border);
        padding: 1.5rem 2rem;
        margin: 0 -2rem;
      }

      .toc-list {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 0.25rem;
      }

      .toc-list a {
        border-left: none;
        border-radius: 6px;
        background: var(--white);
        border: 1px solid var(--border);
      }

      .toc-list a:hover {
        border-color: var(--teal);
        background: var(--teal-pale);
      }

      .toc-sub { display: none; }

      .toc-contact-block { display: none; }

      .editorial-article {
        padding-top: 2.5rem;
      }

      .principles-grid { grid-template-columns: 1fr; }
    }

    @media (max-width: 640px) {
      .nav-links { display: none; }
      .page-header { padding: 3rem 1.25rem 2.5rem; }
      .page-body { padding: 0 1.25rem 4rem; }
      .toc-sidebar { padding: 1.25rem; margin: 0 -1.25rem; }
      .footer { padding: 2.5rem 1.25rem 2rem; }
      .footer-top { flex-direction: column; }
      .footer-bottom { flex-direction: column-reverse; }
      .step-item { grid-template-columns: 32px 1fr; gap: 0.75rem; }
      .callout { grid-template-columns: 1fr; }
      .callout-icon { display: none; }
    }