:root{--black: #121212;--green: #023529;--white: #ffffff;--off: #f5f4f0;--mid: #6b7280;--border: #121212}.site-header[data-astro-cid-xglhyxzr]{position:fixed;top:0;left:0;right:0;z-index:100;background:var(--white);border-bottom:1px solid var(--border)}.header-inner[data-astro-cid-xglhyxzr]{display:flex;align-items:center;justify-content:space-between;max-width:1280px;margin:0 auto;padding:0 2rem;height:70px}.header-logo[data-astro-cid-xglhyxzr] img[data-astro-cid-xglhyxzr]{display:block;width:96px;height:auto}.header-nav[data-astro-cid-xglhyxzr]{display:flex;align-items:center;gap:2rem}.header-nav[data-astro-cid-xglhyxzr] a[data-astro-cid-xglhyxzr]{font-size:.95rem;font-weight:500;color:var(--black);text-decoration:none;transition:color .18s}.header-nav[data-astro-cid-xglhyxzr] a[data-astro-cid-xglhyxzr]:hover{color:var(--green)}.nav-active[data-astro-cid-xglhyxzr]{color:var(--green)!important}.nav-book[data-astro-cid-xglhyxzr]{border:1px solid var(--border)!important;padding:.4rem 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var(--border);background:var(--off);display:flex;align-items:center;justify-content:center;padding:3rem 2rem;min-height:360px}.book-cover[data-astro-cid-xglhyxzr] img[data-astro-cid-xglhyxzr]{max-height:280px;max-width:100%;object-fit:contain;display:block}.book-info[data-astro-cid-xglhyxzr]{padding:2.5rem;display:flex;flex-direction:column;gap:1rem;flex:1}.book-title[data-astro-cid-xglhyxzr]{font-family:"PT Serif",serif;font-size:1.75rem;font-weight:400;color:var(--black);line-height:1.2;letter-spacing:-.01em}.book-desc[data-astro-cid-xglhyxzr]{font-size:.95rem;color:var(--mid);line-height:1.75;flex:1}.book-footer[data-astro-cid-xglhyxzr]{display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap;padding-top:1rem;border-top:1px solid var(--border);margin-top:auto}.book-price[data-astro-cid-xglhyxzr]{font-family:"PT 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p[data-astro-cid-xglhyxzr]{font-size:.82rem;color:var(--mid)}.footer-cols[data-astro-cid-xglhyxzr]{display:flex;gap:3rem;flex-wrap:wrap}.footer-col[data-astro-cid-xglhyxzr]{display:flex;flex-direction:column;gap:.6rem}.footer-col-title[data-astro-cid-xglhyxzr]{font-size:.72rem;font-weight:600;letter-spacing:.09em;text-transform:uppercase;color:var(--black);margin-bottom:.25rem}.footer-col[data-astro-cid-xglhyxzr] a[data-astro-cid-xglhyxzr]{font-size:.88rem;color:var(--mid);text-decoration:none;transition:color .18s}.footer-col[data-astro-cid-xglhyxzr] a[data-astro-cid-xglhyxzr]:hover{color:var(--green)}.footer-bottom[data-astro-cid-xglhyxzr]{padding-top:1.5rem;font-size:.75rem;color:#9ca3af}