.academy-main{padding:54px 0 100px}.academy-header{max-width:900px;margin-bottom:44px}.academy-header h1{font-size:clamp(42px,6vw,72px);line-height:1.02;margin:14px 0 18px}.academy-header h1 em{font-family:var(--font-serif);font-weight:400;color:var(--accent);font-style:italic}.academy-header>p{font-size:19px;max-width:68ch}.academy-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}.academy-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.academy-card{display:flex;flex-direction:column;min-height:210px;padding:24px;border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--surface);transition:transform .2s,border-color .2s}.academy-card:hover{transform:translateY(-3px);border-color:var(--accent)}.academy-card .card-icon{font-size:25px;margin-bottom:22px}.academy-card h2,.academy-card h3{font-size:21px;margin-bottom:8px}.academy-card p{font-size:14px;line-height:1.55;color:var(--muted);flex:1}.academy-card .text-link{margin-top:18px}.academy-card.is-muted{opacity:.68}.academy-section{padding:48px 0;border-top:1px solid var(--line)}.academy-section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:25px}.academy-section-head h2{font-size:34px}.academy-section-head p{max-width:56ch}.learning-path{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;counter-reset:path}.path-step{background:var(--bg-2);border-radius:var(--radius);padding:20px;counter-increment:path}.path-step:before{content:counter(path,decimal-leading-zero);display:block;font:11px var(--font-mono);color:var(--accent-ink);margin-bottom:24px}.path-step strong{display:block;margin-bottom:7px}.path-step p{font-size:13px;color:var(--muted)}.breadcrumbs{display:flex;flex-wrap:wrap;gap:7px;align-items:center;margin-bottom:32px;font-size:13px;color:var(--muted)}.breadcrumbs a{color:var(--muted)}.breadcrumbs a:hover{color:var(--accent-ink)}.breadcrumbs span:not(:last-child):after,.breadcrumbs a:after{content:'›';margin-left:7px;color:var(--line-strong)}.language-link{font:12px var(--font-mono);text-transform:uppercase}.article-layout{display:grid;grid-template-columns:minmax(0,720px) 280px;gap:52px;align-items:start}.article-body{font-size:17px;line-height:1.75}.article-body h1{font-size:clamp(38px,5vw,58px);line-height:1.08;margin:10px 0 18px}.article-body h2{font-size:30px;line-height:1.2;margin:46px 0 16px}.article-body h3{font-size:20px;margin:28px 0 10px}.article-body p+ul,.article-body p+ol{margin-top:14px}.article-body li+li{margin-top:8px}.article-body ul,.article-body ol{padding-left:24px}.article-meta{display:flex;flex-wrap:wrap;gap:9px;margin:18px 0 28px}.meta-pill{font:11px var(--font-mono);padding:7px 10px;border-radius:999px;background:var(--bg-2);color:var(--muted)}.answer-box,.note-box,.prompt-box,.book-callout{border-radius:var(--radius-lg);padding:24px;margin:25px 0}.answer-box{background:var(--accent-soft);border:1px solid rgba(139,92,246,.2)}.answer-box strong{display:block;color:var(--accent-ink);margin-bottom:8px}.note-box{background:var(--bg-2);border-left:3px solid var(--accent)}.prompt-box{background:var(--ink);color:#fff}.prompt-box pre{color:#fff;white-space:pre-wrap;font:14px/1.65 var(--font-mono);margin:0 0 18px}.book-callout{border:1px solid var(--line);background:var(--surface)}.article-aside{position:sticky;top:88px}.aside-card{border:1px solid var(--line);border-radius:var(--radius-lg);padding:22px;background:var(--surface)}.aside-card+ .aside-card{margin-top:14px}.aside-card h2{font-size:17px;margin-bottom:12px}.aside-card a{display:block;padding:7px 0;font-size:14px}.book-hero{display:grid;grid-template-columns:300px 1fr;gap:50px;align-items:center}.book-cover{aspect-ratio:446.88/603.12;border-radius:18px;padding:34px;color:#fff;background:linear-gradient(145deg,#35106b,#171731);box-shadow:var(--shadow-lg);display:flex;flex-direction:column}.book-cover small{letter-spacing:.16em}.book-cover h1{font-size:42px;line-height:1;margin:28px 0 16px}.book-cover p{color:#d6c5ff;font-size:14px}.book-cover strong{margin-top:auto}.book-details h1{font-size:52px;margin:10px 0 15px}.toc{display:grid;grid-template-columns:1fr 1fr;gap:10px}.toc li{list-style:none;background:var(--bg-2);border-radius:var(--radius);padding:14px 16px}.site-footer.academy-footer{margin-top:0}.academy-footer .footer-col a{display:block;margin:8px 0}.academy-note{font-size:13px;color:var(--muted)}
@media(max-width:960px){.academy-grid{grid-template-columns:repeat(2,1fr)}.learning-path{grid-template-columns:repeat(2,1fr)}.article-layout{grid-template-columns:1fr}.article-aside{position:static}.book-hero{grid-template-columns:240px 1fr}}
@media(max-width:680px){.academy-main{padding-top:34px}.academy-grid,.learning-path,.toc,.book-hero{grid-template-columns:1fr}.academy-card{min-height:0}.academy-section-head{display:block}.academy-section-head p{margin-top:8px}.book-cover{max-width:300px}.book-details h1{font-size:40px}.article-body{font-size:16px}.nav-links{display:none}}
.book-cover .cover-title{font-size:42px;font-weight:600;line-height:1;margin:28px 0 16px}
.book-access{border:1px solid var(--line);background:var(--surface);border-radius:var(--radius-lg);padding:26px}.book-access h2{margin-bottom:8px}.book-access-actions{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0 10px}.book-access [data-book-status]{min-height:20px;font-size:13px}