/* ── Reset & Tokens ──────────────────────────────────────── */
  .eb-article *,
  .eb-article *::before,
  .eb-article *::after { box-sizing: border-box; margin: 0; padding: 0; }

  .eb-article {
    --ink:        #1a1a2e;
    --ink-soft:   #3d3d5c;
    --ink-muted:  #6b6b8a;
    --paper:      #fdfcf8;
    --paper-warm: #f5f0e8;
    --paper-card: #ffffff;
    --accent:     #1D2A4D;
    --accent-light: #f4e5dd;
    --accent2:    #1D2A4D;
    --accent2-light: #ddeaf8;
    --gold:       #1D2A4D;
    --gold-light: #faf3e0;
    --rule:       #e8e2d8;

    font-family: 'Source Serif 4', Georgia, serif;
    font-size: clamp(16px, 2vw, 18px);
    line-height: 1.8;
    color: var(--ink);
    background: var(--paper);
    max-width: 100%;
    margin: 0 auto;
  
  }

  /* ── Typography ──────────────────────────────────────────── */
  .eb-article h1 {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: clamp(2rem, 5vw, 3.2rem);
    font-weight: 900;
    line-height: 1.15;
    letter-spacing: -0.02em;
    color: var(--ink);
    margin-bottom: 0.5rem;
  }

  .eb-article h2 {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: clamp(1.4rem, 3vw, 1.9rem);
    font-weight: 700;
    line-height: 1.25;
    color: var(--ink);
    margin-top: 3.5rem;
    margin-bottom: 1.2rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--rule);
    position: relative;
  }
  .eb-article h2::before {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 56px;
    height: 2px;
    background: var(--accent);
  }

  .eb-article h3 {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: clamp(1.1rem, 2.5vw, 1.35rem);
    font-weight: 700;
    font-style: italic;
    color: var(--ink-soft);
    margin-top: 2.4rem;
    margin-bottom: 0.8rem;
  }

  .eb-article h4 {
    font-family: 'Source Serif 4', serif;
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--accent);
    margin-top: 1.8rem;
    margin-bottom: 0.6rem;
  }

  .eb-article p {
    margin-bottom: 1.3rem;
    color: var(--ink-soft);
    font-weight: 300;
  }

  .eb-article strong { font-weight: 600; color: var(--ink); }
  .eb-article em     { font-style: italic; color: var(--ink-soft); }

  .eb-article a {
    color: var(--accent2);
    text-decoration: underline;
    text-underline-offset: 3px;
    transition: color 0.2s;
  }
  .eb-article a:hover { color: var(--accent); }

  /* ── Hero ────────────────────────────────────────────────── */
  .eb-hero {
    background: #551A8B;
    color: var(--paper);
    border-radius: 4px;
   padding: clamp(36px, 6vw, 64px) clamp(28px, 5vw, 56px);
    margin-bottom: 3rem; margin-top: -15px;
    position: relative;
    overflow: hidden;
  }
  .eb-hero::before {
    content: '📚';
    position: absolute;
    right: -20px;
    top: -10px;
    font-size: 11rem;
    opacity: 0.06;
    line-height: 1;
    pointer-events: none;
    user-select: none;
  }
  .eb-hero h1 { color: var(--paper); margin-bottom: 1rem; }
  .eb-hero .eb-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    font-size: 0.82rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.55);
    margin-bottom: 1.5rem;
  }
  .eb-hero .eb-meta span { display: flex; align-items: center; gap: 5px; }
  .eb-hero p {
    color: rgba(255,255,255,0.82);
    font-size: 1.05rem;
    line-height: 1.75;
    font-weight: 300;
    max-width: 640px;
  }
  .eb-hero p strong { color: #fff; }

  /* ── TOC ─────────────────────────────────────────────────── */
  .eb-toc {
    background: var(--paper-warm);
    border: 1px solid var(--rule);
    border-left: 4px solid var(--accent);
    border-radius: 4px;
    padding: 1.6rem 2rem;
    margin-bottom: 3rem;
  }
  .eb-toc h4 {
    margin-top: 0;
    margin-bottom: 1rem;
    color: var(--ink);
    font-size: 0.85rem;
  }
  .eb-toc ol {
    padding-left: 1.4rem;
    columns: 2;
    column-gap: 2rem;
  }
  @media (max-width: 560px) { .eb-toc ol { columns: 1; } }
  .eb-toc li { margin-bottom: 0.4rem; break-inside: avoid; }
  .eb-toc a {
    font-size: 0.9rem;
    font-family: 'Source Serif 4', serif;
    color: var(--ink-soft);
    text-decoration: none;
    font-weight: 400;
  }
  .eb-toc a:hover { color: var(--accent); }

  /* ── Stats strip ─────────────────────────────────────────── */
  .eb-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1px;
    background: var(--rule);
    border: 1px solid var(--rule);
    border-radius: 4px;
    overflow: hidden;
    margin: 2.5rem 0;
  }
  .eb-stat {
    background: var(--paper-card);
    padding: 1.4rem 1.2rem;
    text-align: center;
  }
  .eb-stat-num {
    font-family: 'Playfair Display', serif;
    font-size: 2rem;
    font-weight: 900;
    color: var(--accent);
    display: block;
    line-height: 1.1;
    margin-bottom: 0.3rem;
  }
  .eb-stat-label {
    font-size: 0.78rem;
    color: var(--ink-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    line-height: 1.35;
  }

  /* ── Lists ───────────────────────────────────────────────── */
  .eb-article ul,
  .eb-article ol {
    padding-left: 1.6rem;
    margin-bottom: 1.3rem;
    color: var(--ink-soft);
    font-weight: 300;
  }
  .eb-article li { margin-bottom: 0.55rem; line-height: 1.7; }
  .eb-article ul li::marker { color: var(--accent); }
  .eb-article ol li::marker { color: var(--accent); font-weight: 600; }

  /* ── Highlight block ─────────────────────────────────────── */
  .eb-highlight {
    background: var(--accent-light);
    border-left: 4px solid var(--accent);
    border-radius: 0 4px 4px 0;
    padding: 1.4rem 1.6rem;
    margin: 2rem 0;
  }
  .eb-highlight p { color: var(--ink); margin-bottom: 0; }
  .eb-highlight p:last-child { margin-bottom: 0; }

  .eb-highlight-blue {
    background: var(--accent2-light);
    border-left: 4px solid var(--accent2);
    border-radius: 0 4px 4px 0;
    padding: 1.4rem 1.6rem;
    margin: 2rem 0;
  }
  .eb-highlight-blue p { color: var(--ink); margin-bottom: 0; }

  .eb-highlight-gold {
    background: var(--gold-light);
    border-left: 4px solid var(--gold);
    border-radius: 0 4px 4px 0;
    padding: 1.4rem 1.6rem;
    margin: 2rem 0;
  }
  .eb-highlight-gold p { color: var(--ink); margin-bottom: 0; }

  /* ── Niche cards ─────────────────────────────────────────── */
  .eb-niche-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1rem;
    margin: 2rem 0;
  }
  .eb-niche-card {
    background: var(--paper-card);
    border: 1px solid var(--rule);
    border-radius: 4px;
    padding: 1.4rem;
    position: relative;
    overflow: hidden;
    transition: box-shadow 0.2s;
  }
  .eb-niche-card:hover { box-shadow: 0 4px 18px rgba(0,0,0,0.07); }
  .eb-niche-card .eb-niche-icon {
    font-size: 2rem;
    display: block;
    margin-bottom: 0.6rem;
  }
  .eb-niche-card h4 {
    margin: 0 0 0.5rem 0;
    font-size: 0.88rem;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--accent);
  }
  .eb-niche-card p {
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 0;
    color: var(--ink-soft);
  }
  .eb-niche-card .eb-niche-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background: var(--accent);
    color: #fff;
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 2px 8px;
    border-radius: 2px;
  }

  /* ── Platform cards ──────────────────────────────────────── */
  .eb-platform-list { list-style: none; padding: 0; }
  .eb-platform-list li {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.2rem;
    border: 1px solid var(--rule);
    border-radius: 4px;
    margin-bottom: 0.8rem;
    background: var(--paper-card);
    transition: border-color 0.2s;
  }
  .eb-platform-list li:hover { border-color: var(--accent); }
  .eb-platform-icon { font-size: 1.8rem; flex-shrink: 0; margin-top: 2px; }
  .eb-platform-name {
    font-family: 'Playfair Display', serif;
    font-weight: 700;
    font-size: 1rem;
    color: var(--ink);
    display: block;
    margin-bottom: 0.25rem;
  }
  .eb-platform-list li p {
    font-size: 0.9rem;
    margin-bottom: 0;
    line-height: 1.55;
  }

  /* ── Steps ───────────────────────────────────────────────── */
  .eb-steps { counter-reset: step; list-style: none; padding: 0; }
  .eb-steps li {
    counter-increment: step;
    display: flex;
    gap: 1.2rem;
    margin-bottom: 1.2rem;
    align-items: flex-start;
  }
  .eb-steps li::before {
    content: counter(step);
    font-family: 'Playfair Display', serif;
    font-weight: 900;
    font-size: 1.1rem;
    color: #fff;
    background: var(--accent);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-top: 2px;
  }
  .eb-steps li p { margin-bottom: 0; font-size: 0.97rem; }

  /* ── Key points ──────────────────────────────────────────── */
  .eb-keypoints {
    background: var(--ink);
    color: var(--paper);
    border-radius: 4px;
    padding: clamp(28px, 4vw, 48px);
    margin: 3rem 0;
  }
  .eb-keypoints h2 {
    color: var(--paper);
    border-bottom-color: rgba(255,255,255,0.15);
    margin-top: 0;
    font-size: 1.5rem;
  }
  .eb-keypoints h2::before { background: var(--accent); }
  .eb-keypoints ul { padding-left: 0; list-style: none; }
  .eb-keypoints li {
    display: flex;
    gap: 1rem;
    padding: 0.9rem 0;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    font-size: 0.97rem;
    color: rgba(255,255,255,0.85);
    line-height: 1.65;
    align-items: flex-start;
  }
  .eb-keypoints li:last-child { border-bottom: none; padding-bottom: 0; }
  .eb-keypoints li .kp-icon { font-size: 1.25rem; flex-shrink: 0; margin-top: 1px; }
  .eb-keypoints li strong { color: #fff; }

  /* ── Conclusion ──────────────────────────────────────────── */
  .eb-conclusion {
    background: var(--paper-warm);
    border: 1px solid var(--rule);
    border-radius: 4px;
    padding: clamp(28px, 4vw, 48px);
    margin: 3rem 0;
  }
  .eb-conclusion h2 { margin-top: 0; }

  /* ── FAQ ─────────────────────────────────────────────────── */
  .eb-faq { margin: 3rem 0; }
  .eb-faq h2 { margin-top: 0; }
  .eb-faq-item {
    border: 1px solid var(--rule);
    border-radius: 4px;
    margin-bottom: 0.6rem;
    overflow: hidden;
    background: var(--paper-card);
  }
  .eb-faq-q {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.4rem;
    cursor: pointer;
    gap: 1rem;
    user-select: none;
    list-style: none;
  }
  .eb-faq-q::-webkit-details-marker { display: none; }
  .eb-faq-q span { font-weight: 600; font-size: 0.97rem; color: var(--ink); flex: 1; }
  .eb-faq-q::after {
    content: '+';
    font-size: 1.4rem;
    font-weight: 300;
    color: var(--accent);
    flex-shrink: 0;
    transition: transform 0.2s;
    line-height: 1;
  }
  details[open] > .eb-faq-q::after { transform: rotate(45deg); }
  .eb-faq-a {
    padding: 0 1.4rem 1.2rem 1.4rem;
    font-size: 0.95rem;
    color: var(--ink-soft);
    line-height: 1.7;
  }
  .eb-faq-a p { margin-bottom: 0; font-size: 0.95rem; font-weight: 300; }

  /* ── Engagement box ──────────────────────────────────────── */
  .eb-engage {
    border: 2px solid var(--accent);
    border-radius: 4px;
    padding: 2rem 2.4rem;
    margin: 3rem 0;
    text-align: center;
    background: var(--accent-light);
  }
  .eb-engage p { font-size: 1.05rem; color: var(--ink); margin-bottom: 0.8rem; }
  .eb-engage p:last-child { margin-bottom: 0; }
  .eb-engage em { font-style: italic; font-size: 1rem; }

  /* ── References ──────────────────────────────────────────── */
  .eb-refs {
    border-top: 2px solid var(--rule);
    padding-top: 2rem;
    margin-top: 3rem;
  }
  .eb-refs h2 { margin-top: 0; font-size: 1.3rem; }
  .eb-refs ol { padding-left: 1.4rem; }
  .eb-refs li {
    font-size: 0.88rem;
    margin-bottom: 0.9rem;
    color: var(--ink-soft);
    line-height: 1.65;
  }
  .eb-refs li strong { color: var(--ink); }

  /* ── Footer note ─────────────────────────────────────────── */
  .eb-footer-note {
    margin-top: 2.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--rule);
    font-size: 0.82rem;
    color: var(--ink-muted);
    font-style: italic;
    line-height: 1.6;
  }

  /* ── Keywords tag cloud ──────────────────────────────────── */
  .eb-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1.2rem;
  }
  .eb-tag {
    background: var(--paper-warm);
    border: 1px solid var(--rule);
    border-radius: 2px;
    padding: 3px 10px;
    font-size: 0.78rem;
    color: var(--ink-muted);
    font-family: 'Source Serif 4', serif;
  }

  /* ── Divider ─────────────────────────────────────────────── */
  .eb-divider {
    border: none;
    border-top: 1px solid var(--rule);
    margin: 2.8rem 0;
  }
  .eb-divider-ornament {
    text-align: center;
    margin: 2.5rem 0;
    color: var(--accent);
    font-size: 1.2rem;
    letter-spacing: 0.6em;
    opacity: 0.4;
  }