/* Reading surface: restrained navigation, generous document width, persistent controls. */
.sr-reader{--reader-navy:#172e4c;height:100dvh;display:grid;grid-template-columns:0 minmax(0,1fr);grid-template-rows:82px 48px minmax(0,1fr) 72px;color:#1d2d43;background:#eef0f3;font-size:16px}
.sr-reader button,.sr-reader a{font-weight:700}
.sr-reader button:focus-visible,.sr-reader a:focus-visible,.sr-reader select:focus-visible{outline:3px solid #256dcc;outline-offset:3px}
.sr-reader button:disabled{opacity:.35;cursor:default}
.sr-reader svg{width:21px;height:21px;flex-shrink:0}
.sr-reader.sr-sidebar-open{grid-template-columns:252px minmax(0,1fr)}
.sr-header{grid-column:1/-1;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:0 28px;background:white;border-bottom:1px solid #d9dfe6}
.sr-heading{display:flex;align-items:center;gap:18px;min-width:0}.sr-heading>div{min-width:0}
.sr-heading h1{font-size:23px;line-height:1.3;font-weight:800;letter-spacing:-.035em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin:3px 0 0}
.sr-eyebrow{font-size:12px;font-weight:750;color:#526882;letter-spacing:.01em}
.sr-back,.sr-header-actions button{display:flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 13px;border-radius:6px;color:#243c59}
.sr-header-actions{display:flex;gap:8px}.sr-header-actions button[aria-pressed=true]{background:#edf2f8;color:#1359ad}.sr-header-actions button:hover{background:#edf2f8}.sr-header-actions .sr-end{border:1px solid #c6cfda;margin-left:8px}
.sr-toolbar{grid-row:2;grid-column:1/-1;display:flex;align-items:center;justify-content:space-between;padding:0 28px;background:#f9fafb;border-bottom:1px solid #d9dfe6;font-size:13px;gap:10px}.sr-toolbar p{display:flex;align-items:center;gap:9px;font-weight:600;margin:0}.sr-toolbar>a,.sr-toolbar>button{display:flex;align-items:center;gap:4px;min-height:44px;color:#1759a7;white-space:nowrap}.sr-toolbar svg{width:16px;height:16px}.sr-sample-tag{font-size:10px;letter-spacing:.06em;padding:3px 5px;border:1px solid #b9c5d3;border-radius:3px}
.sr-sidebar{grid-row:3/5;grid-column:1;overflow:auto;background:#fff;border-right:1px solid #d9dfe6;visibility:hidden}.sr-sidebar-open .sr-sidebar{visibility:visible}.sr-side-heading{padding:28px 22px 20px}.sr-side-heading h2{font-size:19px;font-weight:800;margin:0 0 6px}.sr-side-heading>span{font-size:13px;color:#66758a}.sr-sidebar nav{padding:0 12px}.sr-toc-item{width:100%;display:flex;align-items:center;gap:12px;min-height:54px;padding:12px 11px;border-radius:5px;text-align:left;margin-bottom:5px;color:#425268}.sr-toc-item>span{font-size:13px;color:#738196;font-variant-numeric:tabular-nums}.sr-toc-item strong{font-size:15px;font-weight:700;flex:1}.sr-toc-item svg{width:15px;height:15px;opacity:0}.sr-toc-item.active{background:#eaf0f8;color:#1456a6}.sr-toc-item.active svg{opacity:1}.sr-toc-item:hover{background:#f1f4f7}.sr-reading-progress{margin:28px 22px 20px;padding-top:22px;border-top:1px solid #e0e4e9;font-size:12px;color:#65748a}.sr-reading-progress>span{display:flex;justify-content:space-between}.sr-reading-progress b{color:#1c3c62}.sr-reading-progress progress{appearance:none;width:100%;height:4px;margin:12px 0;background:#e7ecf2;border:0}.sr-reading-progress progress::-webkit-progress-bar{background:#e7ecf2;border-radius:3px}.sr-reading-progress progress::-webkit-progress-value{background:#1c5fb5;border-radius:3px}.sr-reading-progress p{font-size:12px;line-height:1.7;margin-top:8px}.sr-help{display:flex;align-items:center;gap:8px;font-size:13px;margin:0 22px;color:#455b76}.sr-help svg{width:14px}
.sr-reader .sr-workspace{grid-column:2;grid-row:3;padding:24px 40px 32px;overflow:auto;background:#eef0f3;scrollbar-color:#a4b0bd #eef0f3;min-width:0}.sr-page-heading{max-width:750px;margin:0 auto 16px;display:flex;justify-content:space-between;align-items:center;font-size:12px;color:#67758a}.sr-page-heading strong{font-size:14px;color:#304963}.sr-page-heading strong span{margin-left:9px}.sr-pages{display:flex;gap:20px;min-width:100%;width:max-content;justify-content:center}.sr-paper{width:calc(min(750px,100vw - 90px) * var(--read-zoom));flex:none;background:white;box-shadow:0 2px 10px #1d355018;line-height:0;min-height:200px}.sr-sidebar-open .sr-paper{width:calc(min(750px,100vw - 340px) * var(--read-zoom))}.sr-paper img{display:block;width:100%;height:auto}.sr-spread .sr-paper{width:calc(min(540px,(100vw - 115px)/2) * var(--read-zoom))}.sr-sidebar-open .sr-spread .sr-paper{width:calc(min(540px,(100vw - 367px)/2) * var(--read-zoom))}.sr-page-note{text-align:center;margin-top:22px;font-size:12px;color:#64748b;line-height:1.6}.sr-page-loading{aspect-ratio:1/1.414;display:grid;place-items:center;color:#63758b;font-size:14px;line-height:1.6}.sr-page-loading:has(img){display:block;aspect-ratio:auto}.sr-page-loading>span{padding:30px}.sr-protected .sr-paper{user-select:none;-webkit-user-select:none}.sr-away .sr-paper{visibility:hidden}
.sr-controls{grid-column:2;grid-row:4;display:flex;align-items:center;justify-content:space-between;padding:10px 28px;border-top:1px solid #d5dce5;background:white;gap:16px;z-index:2}.sr-page-controls,.sr-zoom-controls{display:flex;align-items:center;gap:5px}.sr-controls button{min-width:44px;min-height:44px;display:flex;align-items:center;justify-content:center;gap:8px;border-radius:5px;color:#243d5d;font-size:14px}.sr-controls button:hover{background:#edf2f8}.sr-controls button[aria-pressed=true]{background:#e8eff8}.sr-page-controls label{display:flex;align-items:center;gap:9px;font-weight:700;font-size:15px;margin:0 6px}.sr-page-controls select{appearance:auto;border:1px solid #bac7d7;background:white;border-radius:5px;min-height:40px;padding:0 8px;font-size:16px;color:#173c6a}.sr-zoom-controls .sr-spread-toggle{margin-left:16px;padding:0 10px}.sr-print-notice{display:none}
.sr-reader.sr-gate{display:block;overflow:auto;background:#f4f6f8}.sr-return{display:inline-flex;align-items:center;gap:8px;margin:24px;font-size:15px}.sr-access{max-width:520px;background:white;border:1px solid #dbe1e8;margin:20px auto 50px;padding:42px;border-radius:12px;text-align:center}.sr-access-icon{width:60px;height:60px;display:grid;place-items:center;background:#edf2f9;color:#155ab3;border-radius:50%;margin:0 auto 24px}.sr-access-icon svg{width:27px;height:27px}.sr-access .sr-eyebrow{display:block}.sr-access h1{font-size:27px;font-weight:800;margin:12px 0 16px}.sr-access p{line-height:1.8;font-size:16px;color:#57677d}.sr-access ul{text-align:left;padding:20px 0 20px 20px;font-size:14px;line-height:2;color:#41536b}.sr-primary{min-height:52px;padding:12px 24px;background:#185cba;color:white;border-radius:6px;width:100%;font-size:17px}.sr-access>a{display:block;font-size:14px;color:#2e557d;padding:18px}.sr-access small{display:block;border-top:1px solid #e0e5ec;padding-top:20px;font-size:12px;line-height:1.8;color:#67758b}
@media(max-width:900px){.sr-reader.sr-sidebar-open{grid-template-columns:220px minmax(0,1fr)}.sr-sidebar-open .sr-paper{width:calc((100vw - 276px) * var(--read-zoom))}.sr-reader .sr-workspace{padding:22px 22px 30px}.sr-controls{padding:10px 15px}.sr-zoom-controls .sr-spread-toggle{display:none}.sr-heading h1{font-size:21px}}
@media(max-width:700px){.sr-reader,.sr-reader.sr-sidebar-open{grid-template-columns:0 minmax(0,1fr);grid-template-rows:76px 66px minmax(0,1fr) 66px}.sr-header{padding:0 12px;gap:4px}.sr-heading{gap:5px}.sr-heading h1{font-size:18px}.sr-heading .sr-eyebrow{font-size:11px}.sr-back{padding:0 5px;min-width:32px}.sr-header-actions{gap:2px}.sr-header-actions button{min-width:40px;padding:0 7px}.sr-header-actions button span{display:none}.sr-header-actions .sr-end{font-size:12px;min-width:48px;margin-left:0}.sr-toolbar{padding:7px 16px;flex-wrap:wrap;gap:0;align-content:center;font-size:11px;line-height:1.5}.sr-toolbar p{width:100%;gap:6px}.sr-toolbar>a,.sr-toolbar>button{min-height:26px;font-size:12px}.sr-toolbar .sr-sample-tag{font-size:9px}.sr-reader .sr-workspace{padding:16px 12px 22px}.sr-paper,.sr-sidebar-open .sr-paper{width:calc((100vw - 24px) * var(--read-zoom))}.sr-sidebar{position:absolute;left:0;top:142px;bottom:66px;width:260px;z-index:3;box-shadow:10px 0 20px #172f4c20}.sr-page-heading{margin-bottom:12px}.sr-controls{padding:8px 10px;gap:3px}.sr-controls button{min-width:38px;min-height:44px}.sr-page-controls,.sr-zoom-controls{gap:0}.sr-page-controls label{margin:0 3px;gap:5px}.sr-page-controls select{width:48px;padding:0 4px}.sr-zoom-controls button[data-read=fit]{font-size:13px}.sr-page-note{font-size:11px}.sr-access{padding:28px 24px;margin:0 16px 30px}.sr-access h1{font-size:23px}.sr-access p{font-size:15px}.sr-spread .sr-paper,.sr-sidebar-open .sr-spread .sr-paper{width:calc((100vw - 24px) * var(--read-zoom))}.sr-spread{justify-content:flex-start}}
@media print{body:has(.sr-protected) #app *{visibility:hidden!important}.sr-protected .sr-print-notice{display:block!important;visibility:visible!important;position:fixed;inset:40px;color:black;background:white;font-size:20px}}
@media(max-width:700px){.sr-controls button{min-width:44px}.sr-header-actions button{min-width:44px}}
@media(max-width:360px){.sr-heading h1{font-size:16px}.sr-header{padding:0 8px}.sr-header-actions{gap:0}.sr-header-actions button{padding:0 4px}.sr-heading .sr-eyebrow{font-size:10px}}
.sr-page-controls label>span{white-space:nowrap}
@media(max-width:360px){.sr-controls{padding:8px 6px;gap:0}.sr-page-controls label{margin:0;gap:4px;flex-shrink:0}.sr-page-controls label>span{font-size:14px}}