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var(--ease-default),border-color var(--transition-fast) var(--ease-default),box-shadow var(--transition-fast) var(--ease-default)}.topic-card[data-astro-cid-et5ia26j]:hover{transform:translateY(-2px);border-color:var(--color-accent);box-shadow:0 8px 24px #1e34541f}.topic-icon[data-astro-cid-et5ia26j]{width:2.25rem;height:2.25rem;color:var(--color-accent);flex-shrink:0}.topic-title[data-astro-cid-et5ia26j]{font-family:var(--font-heading);font-weight:700;font-size:1.25rem;line-height:1.3;color:var(--color-surface-dark);margin:0}.reference-grid[data-astro-cid-et5ia26j]{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:1fr;gap:0}@media(min-width:768px){.reference-grid[data-astro-cid-et5ia26j]{grid-template-columns:repeat(2,1fr)}}@media(min-width:1024px){.reference-grid[data-astro-cid-et5ia26j]{grid-template-columns:repeat(3,1fr)}}.reference-item[data-astro-cid-et5ia26j]{border-top:1px solid 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#1e34542e}.book-content[data-astro-cid-et5ia26j]{display:flex;flex-direction:column;gap:1rem}.book-name[data-astro-cid-et5ia26j]{font-family:var(--font-heading);font-weight:700;font-size:clamp(1.5rem,3vw,2.25rem);color:var(--color-surface-dark);line-height:1.2;margin:0}.book-subtitle[data-astro-cid-et5ia26j]{font-family:var(--font-heading);font-weight:600;font-size:1.0625rem;line-height:1.4;color:var(--color-accent);margin:0}.book-body[data-astro-cid-et5ia26j]{font-size:1rem;line-height:1.7;color:var(--color-text);margin:0}@media(min-width:1024px){.book-body[data-astro-cid-et5ia26j]{font-size:1.0625rem}}.book-cta[data-astro-cid-et5ia26j]{display:inline-flex;align-items:center;gap:.5rem;margin-top:.5rem;font-family:var(--font-heading);font-weight:600;letter-spacing:.05em;font-size:.9rem;color:var(--color-accent);text-decoration:none;transition:color 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