.icarus-origin{margin:24px 0 32px;padding:23px 28px;border-left:2px solid #b99a72;background:#fcfbf8}.icarus-origin .kicker{margin:0 0 15px;font:11px/1.5 ui-monospace,monospace;letter-spacing:1px;text-transform:uppercase;color:#8b704d}.icarus-origin blockquote{margin:0;font:18px/1.65 Georgia,serif;color:#334451}.icarus-origin blockquote p{margin:0}.icarus-origin blockquote p+p{margin-top:15px}.icarus-origin figcaption{margin-top:15px;font:12px/1.5 Arial,sans-serif}.icarus-origin a{color:#245f75;text-underline-offset:4px}
.flight-book-invitation{display:grid;grid-template-columns:145px 1fr;gap:35px;padding:32px 0;margin-top:28px;border-top:1px solid #cbdde8;align-items:center}.flight-book-cover{display:block;border:1px solid #cbdde8;box-shadow:4px 5px 0 #edf2f5}.flight-book-cover img{display:block;width:100%;height:auto}.flight-book-invitation h3{font:30px/1.25 Georgia,serif;margin:9px 0 15px;color:#244e73}.flight-book-invitation p{max-width:650px}.flight-book-invitation .scope{margin-top:16px}
.icarus-companion-origin{max-width:1040px;margin:30px auto;padding:0 30px;color:#334451;background:#fff}.icarus-companion-origin .book-back{font:13px/1.5 Arial,sans-serif;color:#245f75}.icarus-companion-origin .links{display:flex;gap:20px;margin-top:18px}.icarus-companion-origin .scope{font:12px/1.6 Arial,sans-serif}
.book-heading{padding-bottom:25px}.book-heading h1{margin-top:12px}.book-heading .lede{margin-top:12px}.book-edition{font:12px/1.6 var(--sans);color:#687d8b;margin-top:18px}
.book-answer:empty{display:none}
.book-reader{display:grid;grid-template-columns:290px minmax(0,1fr);gap:26px;border-top:1px solid #cbdde8;padding:25px 0 45px;font:14px/1.65 var(--sans)}.book-sidebar{min-width:0}.book-contents{border-bottom:1px solid #cbdde8;padding-bottom:15px;margin-bottom:24px}.book-contents summary{cursor:pointer;font-weight:600;color:#244e73;padding:8px 0}.book-contents nav{display:grid;gap:0;max-height:45vh;overflow:auto}.book-contents a{padding:9px 5px;border-bottom:1px solid #e2e9ed;font-size:12px;text-decoration:none;line-height:1.5}.book-questions h2{font:24px/1.25 var(--serif);margin-bottom:15px}.book-questions p{color:#536b7d}.book-questions form{margin:20px 0 12px}.book-questions label{display:block;font-size:12px;margin-bottom:7px}.book-questions textarea{width:100%;resize:vertical;padding:11px;border:1px solid #aabfcd;background:#fff;color:#244e73;font:14px/1.6 var(--sans)}.book-reader button{cursor:pointer;min-height:40px;border:1px solid #b6cbd8;color:#245f75;padding:9px 12px;background:#fff;font:12px/1.5 var(--sans)}.book-reader button:hover{background:#eef6f7}.book-reader button:disabled{cursor:default;opacity:.5}.book-search-actions{display:flex;gap:9px;margin-top:10px}.book-search-actions button:last-child{background:#eaf4f4}.book-ai-status{font-size:11px;line-height:1.7}.book-prompts{display:grid;gap:7px;margin:20px 0}.book-prompts button{text-align:left;font-size:11px}.book-results{display:grid;gap:18px;margin-top:20px;max-height:70vh;overflow:auto}.book-results article{border-top:1px solid #dce7ee;padding-top:15px}.book-results button{border:0;padding:0;text-align:left;text-decoration:underline;font-size:13px;font-weight:500}.book-results p{font-size:12px;margin-top:9px}.book-answer{padding:0}.book-answer:not(:empty){border-left:2px solid #267e80;padding:15px;margin-top:20px;background:#f3f8f8}.book-answer h3{font:13px var(--sans);margin-bottom:15px}.book-answer p{font-size:13px;white-space:pre-wrap}.book-answer button{font-size:11px;min-height:32px;padding:5px 8px;margin:7px 5px 12px 0}
.book-document{min-width:0}.book-toolbar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;background:#fbfdff;padding:12px;border:1px solid #cbdde8}.book-toolbar label{font-size:12px}.book-toolbar input{width:62px;padding:7px;border:1px solid #b6cbd8;color:#244e73}.book-toolbar>span{font-size:12px}.book-page-caption{font:11px/1.6 var(--sans);color:#607b8c;margin:12px 0}.book-page-scroll{overflow:auto;background:#edf1f3;padding:16px;max-height:85vh;border:1px solid #d3dfe7}.book-page-scroll canvas{display:block;background:#fff;box-shadow:0 2px 8px #29486018;margin:auto;max-width:none}.book-page-text{margin:18px 0}.book-page-text summary{cursor:pointer;font-size:12px;color:#245f75}.book-page-text pre{white-space:pre-wrap;font:15px/1.7 var(--serif);padding:20px;background:#fafbf9;color:#334451;max-height:65vh;overflow:auto}
@media(min-width:1250px){body:has(.book-reader) .wrap{max-width:1320px}.book-reader{grid-template-columns:330px minmax(0,1fr);gap:35px}}
@media(max-width:800px){.book-reader{grid-template-columns:1fr}.book-document{grid-row:1}.book-page-scroll{max-height:none}.book-results{max-height:none}.book-sidebar{border-top:1px solid #cbdde8;padding-top:25px}.book-heading h1{font-size:34px}}
@media(max-width:500px){.icarus-origin{padding:20px 18px}.icarus-origin blockquote{font-size:17px}.flight-book-invitation{grid-template-columns:82px 1fr;gap:20px}.flight-book-invitation h3{font-size:23px}.flight-book-invitation p{font-size:15px}.flight-book-invitation .kicker{font-size:9px}.book-toolbar{gap:7px;padding:8px}.book-toolbar button{padding:7px 9px}.book-page-scroll{padding:8px}.book-questions h2{font-size:25px}}
@media print{.book-sidebar,.book-toolbar{display:none}.book-reader{display:block}.book-page-scroll{max-height:none;overflow:visible}.book-page-scroll canvas{max-width:100%!important;height:auto!important}.icarus-origin{break-inside:avoid}}

@media(min-width:801px){.book-sidebar{max-height:calc(100vh - 65px);overflow-y:auto;padding-right:10px;position:sticky;top:24px;align-self:start}.book-document{align-self:start}}

.book-contents .book-toc-level-2{padding-left:18px;color:#536b7d}