.notebook-hero{padding:56px 0 42px;border-bottom:1px solid var(--line);display:grid;grid-template-columns:1.5fr 1fr;gap:50px;align-items:end}.notebook-hero h1{font-size:clamp(42px,6vw,72px);margin:14px 0 20px}.notebook-hero .lede{max-width:610px}.notebook-margin{font:14px/1.8 var(--sans);color:var(--muted);border-left:1px solid var(--line);padding-left:28px}.notebook-margin a{display:inline-block;margin-top:12px}.notebook-entry{padding:34px 0 44px;display:grid;grid-template-columns:165px 1fr;gap:35px;border-bottom:1px solid var(--line)}.notebook-entry time,.notebook-entry .entry-number{display:block;font:12px/1.7 var(--mono);color:var(--muted)}.notebook-entry .entry-number{color:var(--teal);margin-bottom:8px}.notebook-entry h2{font-size:34px;max-width:640px;margin:6px 0 16px}.notebook-entry h2 a{text-decoration:none}.notebook-entry h2 a:hover{text-decoration:underline}.notebook-entry p{max-width:670px}.notebook-entry img{width:100%;height:auto;margin:20px 0 0}.notebook-shelf{padding:46px 0}.notebook-shelf>p{max-width:680px;margin:16px 0 24px}.shelf-grid{display:grid;grid-template-columns:1fr 1fr;column-gap:44px}.book-note{padding:24px 0;border-top:1px solid var(--line)}.book-status{font:11px/1.5 var(--mono);text-transform:uppercase;letter-spacing:1px;color:var(--teal);display:inline-block;margin-bottom:12px}.book-note h3{font-size:23px;margin-bottom:10px}.book-author,.book-tradition{font:12px/1.6 var(--sans);color:var(--muted);margin:0!important}.book-note .book-thought{margin-top:16px;font-size:16px}.book-note .book-link{display:inline-block;font:13px/1.6 var(--sans);margin-top:15px}.entry-header{padding:40px 0 32px;border-bottom:1px solid var(--line);max-width:840px;margin:auto}.entry-header h1{font-size:clamp(36px,5vw,58px);margin:20px 0}.entry-header .backlink{font:13px var(--sans);display:inline-block;margin-bottom:25px}.entry-body{max-width:720px;margin:36px auto 60px;font-size:19px;line-height:1.85}.entry-body h2{margin:42px 0 20px;font-size:30px}.entry-body .opening{font-size:24px;line-height:1.6}.entry-body p+p{margin-top:20px}.notebook-figure{margin:32px -55px}.notebook-figure img{display:block;width:100%;height:auto;border:1px solid var(--line)}.notebook-figure figcaption{font:13px/1.7 var(--sans);color:var(--muted);margin-top:12px}.math-inline{white-space:nowrap}.source-note{margin:30px 0;padding:20px;border:1px solid var(--line);font:14px/1.8 var(--sans)}.source-note summary{cursor:pointer;color:var(--accent)}.source-note p{margin-top:16px}.source-note img{display:block;width:min(100%,470px);height:auto;margin:20px auto}.notebook-next{max-width:720px;margin:0 auto 50px;padding-top:24px;border-top:1px solid var(--line)}
@media(max-width:800px){.notebook-hero{grid-template-columns:1fr;gap:24px}.notebook-margin{border-left:0;border-top:1px solid var(--line);padding:20px 0 0}.notebook-entry{grid-template-columns:1fr;gap:18px}.notebook-entry aside{display:flex;gap:18px;align-items:baseline}.notebook-figure{margin:28px 0}.entry-body{font-size:18px}}
@media(max-width:560px){.shelf-grid{grid-template-columns:1fr}.notebook-hero{padding-top:35px}.notebook-entry h2{font-size:29px}.entry-body .opening{font-size:22px}.notebook-entry img{margin-top:16px}.entry-header h1{letter-spacing:-.7px}}