.book-intro-page[data-astro-cid-ud5ihswf]{max-width:900px;margin:0 auto;padding:2rem 1rem}.intro-container[data-astro-cid-ud5ihswf]{margin-top:2rem}.book-header[data-astro-cid-ud5ihswf]{text-align:center;background:linear-gradient(135deg,var(--color-secondary) 0%,var(--color-background) 50%,var(--color-secondary) 100%);border-radius:var(--radius-xl);border:2px solid var(--color-border);box-shadow:var(--shadow-card);margin-bottom:3rem;padding:3rem 2rem}.book-header[data-astro-cid-ud5ihswf] h1[data-astro-cid-ud5ihswf]{background:linear-gradient(135deg,var(--color-accent) 0%,var(--color-primary) 100%);-webkit-text-fill-color:transparent;letter-spacing:-.02em;-webkit-background-clip:text;background-clip:text;margin:0 0 .75rem;font-size:3rem;font-weight:700}.subtitle[data-astro-cid-ud5ihswf]{color:var(--color-muted);margin:0;font-size:1.25rem;font-weight:500}.book-overview[data-astro-cid-ud5ihswf]{margin-bottom:4rem}.book-overview[data-astro-cid-ud5ihswf] .principles-grid[data-astro-cid-ud5ihswf]+.notebook-overview[data-astro-cid-ud5ihswf]{margin-top:0}.notebook-overview[data-astro-cid-ud5ihswf]{background:var(--color-white);border-radius:var(--radius-sm);border:1px solid var(--color-border);box-shadow:var(--shadow-card);margin-bottom:2rem;padding:2.5rem 2.5rem 2.5rem 3.5rem;position:relative}.notebook-overview[data-astro-cid-ud5ihswf]:before{content:"";background:repeating-linear-gradient(#0000,#0000 2rem,#6b442326 2rem calc(2rem + 6px),#0000 calc(2rem + 6px) calc(4rem + 6px));width:16px;position:absolute;top:0;bottom:0;left:20px}.notebook-overview[data-astro-cid-ud5ihswf] h2[data-astro-cid-ud5ihswf]{color:var(--color-accent);border-bottom:2px solid var(--color-border);margin:0 0 1.5rem;padding-bottom:1rem;font-size:1.5rem}.notebook-overview[data-astro-cid-ud5ihswf] p[data-astro-cid-ud5ihswf]{color:var(--color-text);margin:0 0 1rem;font-size:1.1rem;line-height:1.8}.notebook-overview[data-astro-cid-ud5ihswf] p[data-astro-cid-ud5ihswf]:last-child{margin-bottom:0}.notebook-overview[data-astro-cid-ud5ihswf] p[data-astro-cid-ud5ihswf] strong[data-astro-cid-ud5ihswf]{color:var(--color-accent);font-weight:600}.overview-card[data-astro-cid-ud5ihswf]{background:var(--color-secondary);border-radius:var(--radius-xl);border:2px solid var(--color-border);box-shadow:var(--shadow-card);margin-bottom:2rem;padding:2rem}.overview-card[data-astro-cid-ud5ihswf] h2[data-astro-cid-ud5ihswf]{color:var(--color-accent);border-bottom:2px solid var(--color-border);margin:0 0 1.5rem;padding-bottom:1rem;font-size:1.5rem}.overview-card[data-astro-cid-ud5ihswf] h2[data-astro-cid-ud5ihswf]:not(:first-child){margin-top:2.5rem}.overview-card[data-astro-cid-ud5ihswf] p[data-astro-cid-ud5ihswf]{color:var(--color-text);margin:0 0 1rem;font-size:1.1rem;line-height:1.8}.overview-card[data-astro-cid-ud5ihswf] p[data-astro-cid-ud5ihswf]:last-child{margin-bottom:0}.principles-grid[data-astro-cid-ud5ihswf]{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1.5rem;margin-bottom:0;display:grid}.book-overview[data-astro-cid-ud5ihswf] .encouragement-card[data-astro-cid-ud5ihswf]{margin:2rem 0}.principle-card[data-astro-cid-ud5ihswf]{background:var(--color-white);border-radius:var(--radius-lg);border:1px solid var(--color-border);text-align:center;transition:var(--transition-all);padding:1.5rem}.principle-card[data-astro-cid-ud5ihswf]:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}.principle-icon[data-astro-cid-ud5ihswf]{margin-bottom:.75rem;font-size:2rem;display:block}.principle-card[data-astro-cid-ud5ihswf] h3[data-astro-cid-ud5ihswf]{color:var(--color-accent);margin:0 0 .5rem;font-size:1.1rem}.principle-card[data-astro-cid-ud5ihswf] p[data-astro-cid-ud5ihswf]{color:var(--color-muted);margin:0;font-size:.9rem;line-height:1.5}.encouragement-card[data-astro-cid-ud5ihswf]{border-radius:var(--radius-xl);border:3px solid var(--color-primary);text-align:center;background:linear-gradient(135deg,#fff9f5,#fffbf7,#fff9f5);padding:2rem;position:relative;overflow:hidden;box-shadow:0 8px 24px #6b442326}.encouragement-card[data-astro-cid-ud5ihswf]:before{content:"";background:radial-gradient(circle,#8b5e3c0d 0,#0000 70%);width:200%;height:200%;animation:4s ease-in-out infinite pulse;position:absolute;top:-50%;right:-50%}@keyframes pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.8;transform:scale(1.1)}}.encouragement-emoji[data-astro-cid-ud5ihswf]{margin-bottom:.5rem;font-size:2rem;animation:2s ease-in-out infinite bounce}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}.encouragement-card[data-astro-cid-ud5ihswf] h2[data-astro-cid-ud5ihswf]{color:var(--color-accent);margin:0 0 .75rem;font-size:1.5rem;font-weight:700;position:relative}.encouragement-card[data-astro-cid-ud5ihswf] p[data-astro-cid-ud5ihswf]{color:var(--color-text);margin:0 0 .75rem;font-size:1rem;line-height:1.6;position:relative}.encouragement-card[data-astro-cid-ud5ihswf] p[data-astro-cid-ud5ihswf]:last-child{margin-bottom:0}.encouragement-card[data-astro-cid-ud5ihswf] p[data-astro-cid-ud5ihswf] strong[data-astro-cid-ud5ihswf]{color:var(--color-accent);font-weight:700}.encouragement-note[data-astro-cid-ud5ihswf]{color:var(--color-muted);font-size:.95rem;font-style:italic;margin-top:.75rem!important}.email-link[data-astro-cid-ud5ihswf]{color:var(--color-accent);border-bottom:2px solid var(--color-accent);transition:var(--transition-all);font-weight:700;text-decoration:none}.email-link[data-astro-cid-ud5ihswf]:hover{background:var(--color-accent);color:var(--color-white);border-radius:var(--radius-sm);border-bottom:2px solid var(--color-accent);padding:.25rem .5rem}.table-of-contents[data-astro-cid-ud5ihswf]{margin:4rem 0}.table-of-contents[data-astro-cid-ud5ihswf] h2[data-astro-cid-ud5ihswf]{color:var(--color-accent);margin:0 0 1.5rem;font-size:2rem}.chapters-list[data-astro-cid-ud5ihswf]{flex-direction:column;gap:1rem;display:flex}.chapter-link[data-astro-cid-ud5ihswf]{background:var(--color-secondary);border:2px solid var(--color-border);border-radius:var(--radius-lg);transition:var(--transition-all);box-shadow:var(--shadow-sm);align-items:center;gap:1rem;padding:1.25rem 1.5rem;text-decoration:none;display:flex}.chapter-link[data-astro-cid-ud5ihswf]:hover{background:var(--color-background-elevated);border-color:var(--color-primary);box-shadow:var(--shadow-md);transform:translate(4px)}.chapter-number[data-astro-cid-ud5ihswf]{color:var(--color-muted);text-transform:uppercase;letter-spacing:.05em;min-width:90px;font-size:.85rem;font-weight:600}.chapter-title[data-astro-cid-ud5ihswf]{color:var(--color-text);flex:1;font-size:1.1rem;font-weight:600}.chapter-arrow[data-astro-cid-ud5ihswf]{color:var(--color-accent);font-size:1.25rem;transition:transform .2s}.chapter-link[data-astro-cid-ud5ihswf]:hover .chapter-arrow[data-astro-cid-ud5ihswf]{transform:translate(4px)}.how-it-works[data-astro-cid-ud5ihswf]{margin:4rem 0}.how-it-works[data-astro-cid-ud5ihswf] h2[data-astro-cid-ud5ihswf]{color:var(--color-accent);margin:0 0 2rem;font-size:2rem}.structure-list[data-astro-cid-ud5ihswf]{flex-direction:column;gap:1.5rem;display:flex}.structure-item[data-astro-cid-ud5ihswf]{align-items:flex-start;gap:1.5rem;display:flex}.structure-number[data-astro-cid-ud5ihswf]{background:var(--color-accent);width:2.5rem;height:2.5rem;color:var(--color-white);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:1.1rem;font-weight:700;display:flex}.structure-content[data-astro-cid-ud5ihswf] h3[data-astro-cid-ud5ihswf]{color:var(--color-primary);margin:0 0 .5rem;font-size:1.25rem}.structure-content[data-astro-cid-ud5ihswf] p[data-astro-cid-ud5ihswf]{color:var(--color-text);margin:0;line-height:1.6}.cta-section[data-astro-cid-ud5ihswf]{text-align:center;background:linear-gradient(135deg,var(--color-secondary) 0%,var(--color-background) 100%);border-radius:var(--radius-xl);border:2px solid var(--color-border);margin:4rem 0 2rem;padding:3rem 2rem}.cta-section[data-astro-cid-ud5ihswf] h2[data-astro-cid-ud5ihswf]{color:var(--color-accent);margin:0 0 .75rem;font-size:2rem}.cta-section[data-astro-cid-ud5ihswf] p[data-astro-cid-ud5ihswf]{color:var(--color-muted);margin:0 0 2rem;font-size:1.1rem}.start-button[data-astro-cid-ud5ihswf]{background:var(--color-accent);color:var(--color-white);border-radius:var(--radius-lg);transition:var(--transition-all);box-shadow:var(--shadow-md);align-items:center;gap:.5rem;padding:1rem 2rem;font-size:1.1rem;font-weight:600;text-decoration:none;display:inline-flex}.start-button[data-astro-cid-ud5ihswf]:hover{background:var(--color-primary);box-shadow:var(--shadow-lg);transform:translateY(-2px)}@media (max-width:768px){.book-intro-page[data-astro-cid-ud5ihswf]{padding:1rem .5rem}.book-header[data-astro-cid-ud5ihswf]{padding:2rem 1rem}.book-header[data-astro-cid-ud5ihswf] h1[data-astro-cid-ud5ihswf]{font-size:2rem}.subtitle[data-astro-cid-ud5ihswf]{font-size:1.1rem}.principles-grid[data-astro-cid-ud5ihswf]{grid-template-columns:1fr}.notebook-overview[data-astro-cid-ud5ihswf]{padding:2rem 1.5rem 2rem 2.5rem}.notebook-overview[data-astro-cid-ud5ihswf]:before{width:12px;left:10px}.encouragement-card[data-astro-cid-ud5ihswf]{padding:1.5rem 1rem}.encouragement-emoji[data-astro-cid-ud5ihswf]{margin-bottom:.5rem;font-size:1.75rem}.encouragement-card[data-astro-cid-ud5ihswf] h2[data-astro-cid-ud5ihswf]{margin-bottom:.5rem;font-size:1.25rem}.encouragement-card[data-astro-cid-ud5ihswf] p[data-astro-cid-ud5ihswf]{font-size:.9rem}.chapter-link[data-astro-cid-ud5ihswf]{flex-direction:column;align-items:flex-start;gap:.5rem}.chapter-number[data-astro-cid-ud5ihswf]{min-width:auto}.chapter-arrow[data-astro-cid-ud5ihswf]{align-self:flex-end}.structure-item[data-astro-cid-ud5ihswf]{gap:1rem}.structure-number[data-astro-cid-ud5ihswf]{width:2rem;height:2rem;font-size:1rem}}