/* OFI PDF Book Creator — WordPress Post Styles v1.7.6.24
   Scope: only content wrapped in .ofi-wp-book-post */
.ofi-wp-book-post{
  --ofi-primary:#385E9D;
  --ofi-secondary:#D99A22;
  --ofi-bg:#F5F7FB;
  --ofi-paper:#FFFFFF;
  --ofi-card:#FFFFFF;
  --ofi-text:#1F2937;
  --ofi-muted:#6B7280;
  --ofi-border:#D8E1EF;
  --ofi-cover-bg:#F5F7FB;
  --ofi-title-size:32px;
  --ofi-chapter-title-size:28px;
  --ofi-section-title-size:20px;
  --ofi-body-size:15px;
  --ofi-table-size:13px;
  --ofi-line-height:1.45;
  --ofi-card-radius:16px;
  --ofi-card-shadow:0 8px 24px rgba(15,23,42,.06);
  --ofi-document-width:880px;
  --ofi-section-spacing:24px;
  --ofi-font-family:Inter,'Segoe UI',Arial,sans-serif;
  --ofi-title-align:left;
  --ofi-chapter-title-align:left;
  --ofi-cover-logo-align:flex-start;
  --ofi-cover-kicker-align:flex-start;
  color:var(--ofi-text);
  font-family:var(--ofi-font-family);
}
.ofi-wp-book-post *{box-sizing:border-box}
.ofi-wp-book-post .ofi-book-document{max-width:var(--ofi-document-width);margin:0 auto;background:var(--ofi-paper);border:1px solid var(--ofi-border);border-radius:calc(var(--ofi-card-radius) + 2px);padding:34px;box-shadow:var(--ofi-card-shadow);color:var(--ofi-text);font-family:var(--ofi-font-family)}
.ofi-wp-book-post .ofi-book-document.is-empty{color:var(--ofi-muted);font-style:italic}
.ofi-wp-book-post .ofi-book-cover{position:relative;overflow:hidden;border:1px solid var(--ofi-border);border-radius:22px;padding:54px 42px;margin-bottom:var(--ofi-section-spacing);background:linear-gradient(135deg,var(--ofi-cover-bg),#fff);min-height:360px;display:flex;flex-direction:column;justify-content:center;gap:12px;text-align:var(--ofi-title-align,left)}
.ofi-wp-book-post .ofi-book-cover.is-banded{border-left:12px solid var(--ofi-primary)}
.ofi-wp-book-post .ofi-book-cover.is-minimal{background:#fff;border-width:0;border-top:4px solid var(--ofi-primary);border-bottom:1px solid var(--ofi-border);border-radius:0}
.ofi-wp-book-post .ofi-book-cover-logo{max-width:155px;max-height:80px;object-fit:contain;margin-bottom:14px;align-self:var(--ofi-cover-logo-align,flex-start)}
.ofi-wp-book-post .ofi-book-cover-kicker{display:inline-flex;align-self:var(--ofi-cover-kicker-align,flex-start);padding:7px 12px;border-radius:999px;background:rgba(56,94,157,.1);color:var(--ofi-primary);font-size:12px;font-weight:800;text-transform:uppercase;letter-spacing:.1em}
.ofi-wp-book-post .ofi-book-cover-title{margin:4px 0 0;font-size:44px;line-height:1.06;color:var(--ofi-primary);letter-spacing:-.04em}
.ofi-wp-book-post .ofi-book-cover-subtitle{margin:6px 0 0;font-size:18px;line-height:1.55;color:var(--ofi-muted);max-width:700px}
.ofi-wp-book-post .ofi-book-cover-author{margin-top:22px;font-weight:800;color:var(--ofi-text)}
.ofi-wp-book-post .ofi-book-cover-date{margin-top:4px;color:var(--ofi-muted);font-size:13px;font-weight:700}
.ofi-wp-book-post .ofi-book-toc{border:1px solid var(--ofi-border);border-radius:18px;padding:24px;margin-bottom:var(--ofi-section-spacing);background:#fff}
.ofi-wp-book-post .ofi-book-toc h2{margin:0 0 14px;color:var(--ofi-primary);font-size:24px}
.ofi-wp-book-post .ofi-book-toc ol{margin:0;padding-left:22px;display:grid;gap:7px;color:var(--ofi-text);line-height:1.55}
.ofi-wp-book-post .ofi-book-toc .toc-section{font-size:13px;color:var(--ofi-muted);margin-left:12px}
.ofi-wp-book-post .ofi-book-footer{display:flex;justify-content:space-between;gap:14px;border-top:1px solid var(--ofi-border);padding-top:12px;margin-top:28px;color:var(--ofi-muted);font-size:12px;font-weight:700}
.ofi-wp-book-post .ofi-book-md{font-size:var(--ofi-body-size);line-height:var(--ofi-line-height);color:var(--ofi-text)}
.ofi-wp-book-post .ofi-book-md > :first-child{margin-top:0}
.ofi-wp-book-post .ofi-book-md h1{font-size:var(--ofi-title-size);line-height:1.12;margin:0 0 16px;color:var(--ofi-primary);letter-spacing:-.03em;text-align:var(--ofi-title-align,left)}
.ofi-wp-book-post .ofi-book-md h2{font-size:var(--ofi-chapter-title-size);line-height:1.18;margin:28px 0 12px;color:var(--ofi-primary);letter-spacing:-.02em;text-align:var(--ofi-chapter-title-align,var(--ofi-title-align,left))}
.ofi-wp-book-post .ofi-book-md h1.ofi-rendered-chapter-title{font-size:var(--ofi-title-size);text-align:var(--ofi-chapter-title-align,var(--ofi-title-align,left))}
.ofi-wp-book-post .ofi-book-md h3{font-size:var(--ofi-section-title-size);line-height:1.25;margin:24px 0 10px;padding-top:10px;border-top:1px solid var(--ofi-border);color:var(--ofi-primary)}
.ofi-wp-book-post .ofi-book-md h4{font-size:18px;margin:18px 0 8px;color:var(--ofi-text)}
.ofi-wp-book-post .ofi-book-md p{margin:7px 0;line-height:var(--ofi-line-height)}
.ofi-wp-book-post .ofi-book-md ul,.ofi-wp-book-post .ofi-book-md ol{margin:12px 0 16px;padding-left:24px;display:grid;gap:7px}
.ofi-wp-book-post.is-check-bullets .ofi-book-md ul{list-style:none;padding-left:0}
.ofi-wp-book-post.is-check-bullets .ofi-book-md ul li{position:relative;padding-left:30px}
.ofi-wp-book-post.is-check-bullets .ofi-book-md ul li:before{content:'✓';position:absolute;left:0;top:.1em;width:20px;height:20px;border-radius:999px;background:rgba(34,197,94,.13);color:#15803d;display:inline-flex;align-items:center;justify-content:center;font-size:12px;font-weight:800}
.ofi-wp-book-post .ofi-book-md ol,.ofi-wp-book-post .ofi-book-md .ofi-md-ordered-list{list-style:decimal!important;list-style-position:outside!important;padding-left:28px!important;margin:12px 0 16px!important}
.ofi-wp-book-post .ofi-book-md ol li,.ofi-wp-book-post .ofi-book-md .ofi-md-ordered-list li{display:list-item!important;list-style:decimal!important;padding-left:4px;margin:0 0 7px}
.ofi-wp-book-post .ofi-book-md code{background:rgba(56,94,157,.1);color:var(--ofi-primary);border-radius:7px;padding:2px 6px;font-size:.92em}
.ofi-wp-book-post .ofi-book-md pre{background:#0f172a;color:#e5e7eb;border-radius:16px;padding:16px;overflow:auto;line-height:1.55;position:relative;white-space:pre;font-family:Consolas,'Courier New',monospace}
.ofi-wp-book-post .ofi-book-md pre code{background:transparent;color:inherit;padding:0;font-family:inherit;font-size:.92em}
.ofi-wp-book-post .ofi-book-md .ofi-code-block{border:1px solid rgba(148,163,184,.24);box-shadow:0 8px 22px rgba(15,23,42,.10);padding-top:32px}
.ofi-wp-book-post .ofi-code-language{position:absolute;right:12px;top:9px;font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:#93c5fd;background:rgba(59,130,246,.13);border:1px solid rgba(147,197,253,.22);border-radius:999px;padding:2px 8px;font-weight:800}
.ofi-wp-book-post .ofi-code-keyword{color:#93c5fd;font-weight:800}.ofi-wp-book-post .ofi-code-type{color:#fbbf24;font-weight:700}.ofi-wp-book-post .ofi-code-builtin{color:#c4b5fd;font-weight:700}.ofi-wp-book-post .ofi-code-string{color:#86efac}.ofi-wp-book-post .ofi-code-comment{color:#94a3b8;font-style:italic}.ofi-wp-book-post .ofi-code-number{color:#fca5a5}
.ofi-wp-book-post.is-code-theme-light .ofi-book-md pre{background:#f8fafc;color:#0f172a;border-color:#dbe3ef;box-shadow:none}.ofi-wp-book-post.is-code-theme-light .ofi-code-language{color:#1d4ed8;background:#dbeafe;border-color:#bfdbfe}.ofi-wp-book-post.is-code-theme-light .ofi-code-keyword{color:#1d4ed8}.ofi-wp-book-post.is-code-theme-light .ofi-code-type{color:#b45309}.ofi-wp-book-post.is-code-theme-light .ofi-code-builtin{color:#6d28d9}.ofi-wp-book-post.is-code-theme-light .ofi-code-string{color:#15803d}.ofi-wp-book-post.is-code-theme-light .ofi-code-comment{color:#64748b}.ofi-wp-book-post.is-code-theme-light .ofi-code-number{color:#b91c1c}
.ofi-wp-book-post .ofi-book-md hr{border:none;border-top:1px solid var(--ofi-border);margin:26px 0}
.ofi-wp-book-post .ofi-md-table-wrap{overflow-x:auto;margin:14px 0 22px;border:1px solid var(--ofi-border);border-radius:14px;background:#fff}
.ofi-wp-book-post .ofi-md-table{width:100%;border-collapse:collapse;font-size:var(--ofi-table-size)}
.ofi-wp-book-post .ofi-md-table th,.ofi-wp-book-post .ofi-md-table td{padding:10px 12px;border:1px solid var(--ofi-border);text-align:left;vertical-align:top;line-height:1.5}
.ofi-wp-book-post .ofi-md-table th{font-weight:800;color:var(--ofi-primary);background:#fff}
.ofi-wp-book-post.is-shaded-tables .ofi-md-table th{background:rgba(56,94,157,.09)}
.ofi-wp-book-post .ofi-md-table-wrap.is-compact .ofi-md-table{font-size:12px}
.ofi-wp-book-post .ofi-md-callout{margin:14px 0 16px;padding:13px 15px;border:1px solid var(--ofi-border);border-left:5px solid var(--ofi-primary);border-radius:14px;background:#fff;line-height:1.6}
.ofi-wp-book-post.is-colorful-callouts .ofi-md-callout{background:linear-gradient(180deg,rgba(56,94,157,.07),#fff)}
.ofi-wp-book-post.is-colorful-callouts .ofi-md-callout-warning,.ofi-wp-book-post.is-colorful-callouts .ofi-md-callout-watch-out{border-left-color:#d97706;background:#fff7ed}
.ofi-wp-book-post.is-colorful-callouts .ofi-md-callout-common-mistake{border-left-color:#dc2626;background:#fef2f2}
.ofi-wp-book-post.is-colorful-callouts .ofi-md-callout-example,.ofi-wp-book-post.is-colorful-callouts .ofi-md-callout-practice,.ofi-wp-book-post.is-colorful-callouts .ofi-md-callout-action{border-left-color:#16a34a;background:#f0fdf4}
.ofi-wp-book-post .ofi-md-callout-label{font-size:12px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--ofi-primary);margin-bottom:5px}
.ofi-wp-book-post .ofi-md-quote{margin:14px 0;padding:12px 14px;border-left:4px solid var(--ofi-secondary);background:#fffbeb;color:#55420c;border-radius:12px}
.ofi-wp-book-post .ofi-md-answer{font-weight:800;border:1px solid var(--ofi-border);border-radius:13px;padding:10px 12px;background:#fff}
.ofi-wp-book-post.is-highlight-answers .ofi-md-answer{background:#f0fdf4;border-color:#bbf7d0;color:#166534}
.ofi-wp-book-post .ofi-page-break{display:block;width:100%;height:0;margin:28px 0;border-top:2px dashed var(--ofi-border);position:relative}.ofi-wp-book-post .ofi-page-break::after{content:'Page break';display:inline-flex;position:relative;top:-12px;left:14px;background:var(--ofi-paper,#fff);color:var(--ofi-muted,#6b7280);font-size:11px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;padding:3px 8px;border:1px solid var(--ofi-border);border-radius:999px}
.ofi-wp-book-post .ofi-smart-block{margin:16px 0 20px;padding:16px 18px;border:1px solid var(--ofi-border);border-left:6px solid var(--ofi-primary);border-radius:var(--ofi-card-radius);background:linear-gradient(180deg,rgba(56,94,157,.06),#fff);box-shadow:0 6px 18px rgba(15,23,42,.04);break-inside:avoid;page-break-inside:avoid}
.ofi-wp-book-post .ofi-smart-badge{display:inline-flex;padding:6px 10px;border-radius:999px;background:rgba(56,94,157,.1);color:var(--ofi-primary);font-size:11px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;margin-bottom:10px}
.ofi-wp-book-post .ofi-smart-title{font-size:17px;line-height:1.35;font-weight:750;color:var(--ofi-text);margin-bottom:8px}
.ofi-wp-book-post .ofi-smart-block p{margin:8px 0}.ofi-wp-book-post .ofi-smart-note{color:var(--ofi-muted);font-size:.94em}.ofi-wp-book-post .ofi-smart-code{margin:10px 0;padding:11px 13px;border-radius:12px;background:#0f172a;color:#e5e7eb;font-family:Consolas,Monaco,monospace;font-weight:800;overflow:auto}.ofi-wp-book-post .ofi-smart-answer{margin-top:10px;padding:10px 12px;border-radius:12px;background:#f0fdf4;border:1px solid #bbf7d0;color:#166534;font-weight:650}.ofi-wp-book-post .ofi-smart-options{margin:10px 0 0;padding-left:22px;display:grid;gap:7px}
.ofi-wp-book-post .ofi-smart-vocabulary{border-left-color:#15803d;background:linear-gradient(180deg,#f0fdf4,#fff)}.ofi-wp-book-post .ofi-smart-formula{border-left-color:#2563eb;background:linear-gradient(180deg,#eff6ff,#fff)}.ofi-wp-book-post .ofi-smart-practice{border-left-color:#d99a22;background:linear-gradient(180deg,#fffbeb,#fff)}.ofi-wp-book-post .ofi-smart-quiz{border-left-color:#7c3aed;background:linear-gradient(180deg,#f5f3ff,#fff)}.ofi-wp-book-post .ofi-smart-summary{border-left-color:#0f766e;background:linear-gradient(180deg,#f0fdfa,#fff)}.ofi-wp-book-post .ofi-smart-reflection{border-left-color:#db2777;background:linear-gradient(180deg,#fdf2f8,#fff)}.ofi-wp-book-post .ofi-smart-explanation{border-left-color:#0ea5e9;background:linear-gradient(180deg,#f0f9ff,#fff)}
.ofi-wp-book-post .ofi-smart-cover{margin:18px 0 24px;padding:34px;border-radius:22px;border:1px solid var(--ofi-border);background:linear-gradient(135deg,var(--ofi-cover-bg),#fff);break-inside:avoid;page-break-inside:avoid}.ofi-wp-book-post .ofi-smart-cover h1{margin:8px 0 10px!important;color:var(--ofi-primary)!important;font-size:34px!important}.ofi-wp-book-post .ofi-smart-cover-page{min-height:520px;display:flex;flex-direction:column;justify-content:center;gap:12px;page-break-after:always;break-after:page}.ofi-wp-book-post .ofi-smart-cover-subtitle{max-width:680px;font-size:18px;line-height:1.55;color:var(--ofi-muted)}
.ofi-wp-book-post .ofi-md-status{display:flex;align-items:flex-start;gap:10px;margin:10px 0;padding:11px 13px;border-radius:14px;border:1px solid var(--ofi-border);line-height:var(--ofi-line-height);break-inside:avoid;page-break-inside:avoid}.ofi-wp-book-post .ofi-md-status-icon{flex:0 0 auto;line-height:1.2}.ofi-wp-book-post .ofi-md-status-correct{background:#f0fdf4;border-color:#bbf7d0;color:#166534}.ofi-wp-book-post .ofi-md-status-incorrect{background:#fef2f2;border-color:#fecaca;color:#991b1b}.ofi-wp-book-post .ofi-md-status-key{background:#f8fbff;border-color:#bfdbfe;color:#1e3a8a}.ofi-wp-book-post .ofi-md-status-rule{background:#f8fafc;border-color:#cbd5e1;color:#334155}.ofi-wp-book-post .ofi-md-status-step{background:#fffbeb;border-color:#fde68a;color:#78350f}
.ofi-wp-book-post .ofi-md-status-step-label{margin-right:.28em}
.ofi-wp-book-post .ofi-md-step-sequence{margin:14px 0 18px;padding:2px 0;border-top:1px solid rgba(217,154,34,.28);border-bottom:1px solid rgba(217,154,34,.28)}.ofi-wp-book-post .ofi-md-step-row{display:flex;align-items:flex-start;gap:10px;padding:10px 0;color:#78350f;line-height:1.55}.ofi-wp-book-post .ofi-md-step-row+.ofi-md-step-row{border-top:1px solid rgba(217,154,34,.18)}.ofi-wp-book-post .ofi-md-step-arrow{flex:0 0 auto;font-weight:800;color:#b45309;line-height:1.35}.ofi-wp-book-post .ofi-md-step-body{flex:1 1 auto;min-width:0}.ofi-wp-book-post .ofi-md-step-label{margin-right:.3em;color:#92400e}
.ofi-wp-book-post .ofi-layout-block{margin:16px 0 22px;padding:16px 18px;border:1px solid var(--ofi-border);border-radius:var(--ofi-card-radius);background:#fff;break-inside:avoid;page-break-inside:avoid}.ofi-wp-book-post .ofi-layout-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:14px}.ofi-wp-book-post .ofi-layout-card-title{font-weight:800;color:var(--ofi-primary);line-height:1.25;margin-bottom:7px}.ofi-wp-book-post .ofi-layout-block p{margin:0;line-height:var(--ofi-line-height)}
.ofi-wp-book-post .ofi-layout-vocab-grid{background:linear-gradient(180deg,#f8fbff,#fff);border-left:6px solid var(--ofi-primary)}.ofi-wp-book-post .ofi-layout-vocab-card,.ofi-wp-book-post .ofi-layout-column-card,.ofi-wp-book-post .ofi-layout-card-grid-item,.ofi-wp-book-post .ofi-layout-feature-card{border:1px solid var(--ofi-border);border-radius:14px;background:#fff;padding:14px;break-inside:avoid;page-break-inside:avoid}.ofi-wp-book-post .ofi-layout-vocab-word{display:inline-flex;padding:6px 10px;border-radius:999px;background:rgba(56,94,157,.1);color:var(--ofi-primary);font-weight:800;margin-bottom:9px}.ofi-wp-book-post .ofi-layout-vocab-meaning{color:var(--ofi-text);font-weight:700;line-height:1.45}.ofi-wp-book-post .ofi-layout-vocab-example{margin-top:9px;padding-top:9px;border-top:1px dashed var(--ofi-border);color:var(--ofi-muted);line-height:1.45}
.ofi-wp-book-post .ofi-layout-columns{background:linear-gradient(180deg,#f8fafc,#fff);border-left:6px solid #64748b}.ofi-wp-book-post .ofi-layout-columns-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:14px}.ofi-wp-book-post .ofi-layout-card-grid{background:linear-gradient(180deg,#fffbeb,#fff);border-left:6px solid var(--ofi-secondary)}.ofi-wp-book-post .ofi-layout-two-column{padding:0;border:none;background:transparent}.ofi-wp-book-post .ofi-layout-two-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.ofi-wp-book-post .ofi-layout-two-card{border:1px solid var(--ofi-border);border-radius:var(--ofi-card-radius);padding:16px;background:#fff;break-inside:avoid;page-break-inside:avoid}.ofi-wp-book-post .ofi-layout-two-card.is-left{background:#fef2f2;border-color:#fecaca}.ofi-wp-book-post .ofi-layout-two-card.is-right{background:#f0fdf4;border-color:#bbf7d0}.ofi-wp-book-post .ofi-layout-feature-cards{background:linear-gradient(180deg,#f5f3ff,#fff);border-left:6px solid #7c3aed}.ofi-wp-book-post .ofi-layout-feature-card{display:flex;gap:12px;align-items:flex-start}.ofi-wp-book-post .ofi-layout-feature-icon{width:30px;height:30px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;background:rgba(124,58,237,.12);color:#6d28d9;font-weight:800}
.ofi-wp-book-post .ofi-layout-align,.ofi-wp-book-post .ofi-layout-center{margin:18px 0 22px;padding:18px 20px;border:1px solid var(--ofi-border);border-radius:var(--ofi-card-radius);background:linear-gradient(180deg,#f8fafc,#fff);break-inside:avoid;page-break-inside:avoid}.ofi-wp-book-post .ofi-layout-center{text-align:center}.ofi-wp-book-post .ofi-layout-left{text-align:left}.ofi-wp-book-post .ofi-layout-right{text-align:right}.ofi-wp-book-post .ofi-layout-align-title,.ofi-wp-book-post .ofi-layout-center-title{font-size:22px;font-weight:800;color:var(--ofi-primary);line-height:1.2;margin-bottom:8px}.ofi-wp-book-post .ofi-layout-align-text,.ofi-wp-book-post .ofi-layout-center-text{color:var(--ofi-text);line-height:var(--ofi-line-height);max-width:680px}.ofi-wp-book-post .ofi-layout-center .ofi-layout-align-text,.ofi-wp-book-post .ofi-layout-center-text{margin:0 auto}.ofi-wp-book-post .ofi-layout-left .ofi-layout-align-text{margin:0 auto 0 0}.ofi-wp-book-post .ofi-layout-right .ofi-layout-align-text{margin:0 0 0 auto}
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