.learning-skeleton{min-height:calc(100vh - 144px);background:#f7f6f2;color:#172b4d;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}.learning-skeleton *{box-sizing:border-box}.learning-skeleton-header{height:68px;background:#fff;border-bottom:1px solid #e5e2da}.learning-skeleton-header-inner{width:min(1180px,calc(100% - 64px));height:100%;margin:auto;display:flex;align-items:center;justify-content:space-between}.learning-skeleton-brand{display:flex;align-items:center;gap:10px;font-size:20px}.learning-skeleton-brand svg{width:30px;height:30px}.learning-skeleton-account{display:flex;gap:20px;align-items:center}.learning-skeleton-account i:first-child{width:210px;height:38px}.learning-skeleton-account i:last-child{width:36px;height:36px;border-radius:50%}.learning-skeleton-block{display:block;background:#e6e4dd;border-radius:6px;animation:learning-skeleton-pulse 1.8s ease-in-out infinite}.learning-skeleton-tabs{height:76px;width:min(1180px,calc(100% - 64px));margin:auto;display:flex;align-items:center;gap:24px;overflow:hidden}.learning-skeleton-tabs i{flex:0 0 82px;height:28px}.learning-skeleton-content{width:min(960px,calc(100% - 64px));margin:auto;padding:28px 0 48px}.learning-skeleton-toolbar{display:flex;justify-content:space-between;gap:24px;margin-bottom:40px}.learning-skeleton-toolbar i{width:180px;height:24px}.learning-skeleton-question{max-width:760px;margin:0 auto;padding:24px 0}.learning-skeleton-label{width:72px;height:14px;margin-bottom:24px}.learning-skeleton-line{width:90%;height:22px;margin-bottom:16px}.learning-skeleton-short{width:60%}.learning-skeleton-answer{display:flex;gap:16px;margin:48px 0 64px}.learning-skeleton-answer i{width:55%;height:34px}.learning-skeleton-answer i:last-child{width:25%}.learning-skeleton-button{width:120px;height:42px;margin-left:auto}@keyframes learning-skeleton-pulse{0%,to{opacity:.55}50%{opacity:1}}@media(max-width:600px){.learning-skeleton-header-inner,.learning-skeleton-tabs,.learning-skeleton-content{width:calc(100% - 32px)}.learning-skeleton-account i:first-child{width:100px}.learning-skeleton-tabs{gap:16px}.learning-skeleton-toolbar i{width:120px}}@media(prefers-reduced-motion:reduce){.learning-skeleton-block{animation:none}}.learning-skeleton-full{min-height:100vh}:root{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:#24324a;background:#f7f9fc}body{margin:0}.web-login{box-sizing:border-box;width:min(440px,100%);margin:8vh auto;padding:32px;background:#fff;border:1px solid #e3e9f2;border-radius:20px;box-shadow:0 20px 70px #1e345a0b}.web-login h1{font-size:28px;margin:30px 0 8px}.web-login p{font-size:16px;line-height:1.6;color:#64748b}.web-brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:#315eb4;font-size:21px;font-weight:700}.web-brand img{width:30px;height:30px}.web-login button{display:block;width:100%;border:1px solid #dce3ee;background:#fff;padding:12px 16px;border-radius:10px;color:#24324a;font:inherit;cursor:pointer;margin-top:12px}button.web-primary{background:#3868d7;color:#fff;border-color:#3868d7}button:disabled{opacity:.55;cursor:wait}.web-login input{box-sizing:border-box;width:100%;margin:8px 0;padding:12px;border:1px solid #dce3ee;border-radius:8px;background:#fff;color:#24324a;font:inherit}.web-divider{text-align:center;color:#7a8698;font-size:14px;margin:24px 0}.web-login label{font-size:14px}.web-login .web-error{color:#a64141}.web-link{border:0!important;color:#3868d7!important}.web-notice button{background:none;border:0;color:#3868d7;cursor:pointer;font:inherit}.web-notice{padding:10px 20px;background:#fff0df;display:flex;justify-content:space-between}@media(max-width:520px){.web-login{margin:0 auto;min-height:100vh;border:0;border-radius:0}}.web-login .web-google{display:flex;align-items:center;justify-content:center;gap:12px;margin-top:28px}.web-loading{padding:48px;text-align:center;color:#64748b}.web-account-menu{position:relative;flex:none;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}.web-account-actions{display:flex;align-items:center;gap:12px;flex:none}.web-install-extension{display:inline-flex;align-items:center;justify-content:center;min-height:36px;padding:0 14px;border:1px solid #d8e0ea;border-radius:10px;background:#f2f6fb;color:#17365c;font:600 13px/1.4 -apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;white-space:nowrap;text-decoration:none}.web-install-extension:hover{background:#e6eef8;border-color:#b9c9dd}.web-install-extension:focus-visible{outline:2px solid #476b97;outline-offset:3px}@media(max-width:520px){.web-account-actions{gap:6px}.web-install-extension{padding:0 8px;font-size:12px}}.web-account-trigger{display:flex;align-items:center;gap:8px;padding:5px 7px;border:1px solid transparent;border-radius:12px;background:transparent;cursor:pointer;color:#526078;transition:background .15s,border-color .15s}.web-account-trigger:hover,.web-account-trigger[aria-expanded=true]{background:#f4f3ef;border-color:#e6e3dc}.web-avatar{display:grid;place-items:center;flex:none;width:36px;height:36px;border-radius:50%;background:#16345b;color:#fff;font-size:15px;font-weight:600;line-height:1;box-shadow:inset 0 0 0 1px #ffffff18}.web-account-chevron{width:14px;height:14px;stroke-width:1.8;transition:transform .15s}.web-account-trigger[aria-expanded=true] .web-account-chevron{transform:rotate(180deg)}.web-account-panel{position:absolute;top:calc(100% + 12px);right:0;z-index:50;width:min(296px,calc(100vw - 32px));border:1px solid #e5e2db;border-radius:16px;background:#fff;box-shadow:0 12px 40px #182c461a,0 2px 6px #182c4608;overflow:hidden;color:#24324a;text-align:left}.web-account-identity{display:flex;align-items:center;gap:12px;padding:20px 18px 18px;border-bottom:1px solid #eeece6}.web-account-identity .web-avatar{width:40px;height:40px;font-size:17px}.web-account-identity>div{min-width:0;display:grid;gap:5px}.web-account-identity strong{font-size:14px;font-weight:600;line-height:1.4}.web-account-identity div>span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:#77808e;font-size:12px;line-height:1.5}.web-account-options{padding:7px}.web-account-language{display:grid;gap:6px;padding:9px 12px 11px}.web-account-language label{color:#77808e;font-size:12px;line-height:1.4}.web-account-language select{width:100%;box-sizing:border-box;border:1px solid #dedbd4;border-radius:8px;background:#fff;color:#364253;padding:8px 9px;font:inherit;font-size:13px}.web-account-options button{display:flex;align-items:center;gap:11px;width:100%;padding:11px 12px;border:0;border-radius:9px;background:transparent;color:#364253;font:inherit;font-size:14px;text-align:left;cursor:pointer;transition:background .15s}.web-account-options button:hover{background:#f5f4f0}.web-account-options svg{width:19px;height:19px;flex:none;stroke-width:1.6;color:#6a7685}.web-account-options .web-account-logout{color:#a34b48}.web-account-logout svg{color:inherit}.web-account-options .web-account-logout:hover{background:#fcf1ef}.web-account-separator{height:1px;background:#eeece6;margin:5px 10px}.web-account-trigger:focus-visible,.web-account-options button:focus-visible,.web-account-language select:focus-visible{outline:2px solid #476b97;outline-offset:3px}@media(max-width:520px){.web-account-trigger{padding:4px;gap:4px}.web-avatar{width:32px;height:32px}.web-account-chevron{width:12px;height:12px}}@media(prefers-reduced-motion:reduce){.web-account-trigger,.web-account-chevron,.web-account-options button{transition:none}}.ebook-workspace{min-height:100vh;background:#f3f5f2;color:#26382d}.ebook-header{height:64px;display:flex;align-items:center;justify-content:space-between;padding:0 6%;background:#fff;border-bottom:1px solid #dce4dd}.ebook-header div{display:flex;gap:14px;align-items:baseline}.ebook-header span{color:#718075;font-size:13px}.ebook-upload,.ebook-primary{background:#376047;color:#fff;border-radius:8px;padding:10px 16px;cursor:pointer}.ebook-upload input,.ebook-primary input{display:none}.ebook-empty{max-width:720px;margin:15vh auto;text-align:center;background:#fff;padding:64px 24px;border-radius:16px;box-shadow:0 4px 24px #203a2910}.ebook-empty h1{margin:0 0 10px}.ebook-empty p{color:#718075;margin-bottom:28px}.ebook-error{padding:14px 6%;background:#fff1ec;color:#a34b3a}.ebook-layout{display:grid;grid-template-columns:260px minmax(0,760px);gap:28px;max-width:1120px;margin:28px auto;padding:0 24px}.ebook-layout aside{background:#fff;padding:18px;border-radius:12px;height:-moz-max-content;height:max-content;position:sticky;top:20px}.ebook-layout aside h2{font-size:15px;margin:0 0 12px}.ebook-layout aside button{display:block;width:100%;border:0;background:transparent;text-align:left;padding:9px;border-radius:6px;color:#52665a;cursor:pointer}.ebook-layout aside button.active{background:#e7f0e8;color:#315b3d;font-weight:600}.ebook-layout article{background:#fff;padding:44px 56px;border-radius:12px;box-shadow:0 3px 18px #203a2910}.ebook-layout article h1{margin-top:0}.ebook-block{margin:22px 0}.ebook-block p{margin:6px 0;line-height:1.8}.ebook-placeholder{color:#7a9a82;border-left:3px solid #b7d0bc;padding-left:12px;font-size:14px}.web-avatar{overflow:hidden}.web-avatar img{display:block;width:100%;height:100%;-o-object-fit:cover;object-fit:cover}.web-account-identity strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.ebook-progress{font-size:13px;color:#718075;margin:4px 0 12px!important}.ebook-asset-row{display:flex;gap:8px;align-items:center}.ebook-asset-row .ebook-asset{flex:1}.ebook-delete,.ebook-back{border:0;background:transparent;color:#a34b3a;cursor:pointer;padding:8px}.ebook-back{display:block;color:#52665a;margin-bottom:14px}.ebook-asset small{float:right;color:#718075;font-weight:400}.ebook-asset{display:block;width:100%;border:1px solid #dce4dd;background:#fff;text-align:left;padding:12px;margin:8px 0;border-radius:8px;cursor:pointer;color:#315b3d}.ebook-notice{padding:12px 6%;background:#e8f0eb;color:#315b3d}.ebook-reader-toolbar{display:flex;flex-wrap:wrap;align-items:start;justify-content:space-between;gap:12px;margin-bottom:20px}.ebook-reader-toolbar h1{flex:1;min-width:160px;margin:0}.ebook-mode{display:flex;border:1px solid #dce4dd;border-radius:8px;overflow:hidden}.ebook-mode button,.ebook-chapter-navigation button{border:0;background:#fff;color:#52665a;padding:9px 12px;cursor:pointer}.ebook-mode button.active{background:#e7f0e8;color:#315b3d}.ebook-status{display:block;margin-top:4px;font-size:11px;font-weight:400;color:#718075}.ebook-status.failed{color:#a34b3a}.ebook-chapter-navigation{display:flex;justify-content:space-between;align-items:center;border-top:1px solid #dce4dd;margin-top:32px;padding-top:18px}.ebook-workspace button:disabled,.ebook-workspace label[aria-disabled=true]{opacity:.55;cursor:default}.ebook-layout aside nav{max-height:60vh;overflow:auto}.ebook-layout aside h2{overflow-wrap:anywhere}@media(max-width:760px){.ebook-layout{display:block;padding:0 12px}.ebook-layout aside{position:static;margin-bottom:16px}.ebook-layout aside nav{max-height:160px}.ebook-layout article{padding:24px 18px}.ebook-header{padding:0 16px}.ebook-header span{display:none}.ebook-empty{margin:32px 12px;padding:32px 18px}}.pdf-reader{width:calc(100% - 48px);max-width:none;box-sizing:border-box;margin:24px auto;padding:0;overflow:hidden}.pdf-toolbar{display:flex;align-items:center;gap:12px;background:#fff;border-radius:10px;padding:12px;margin-bottom:16px}.pdf-toolbar strong{flex:1;overflow-wrap:anywhere}.pdf-toolbar button{border:0;background:#fff;color:#315b3d;padding:8px 12px;cursor:pointer}.pdf-toolbar button.active{background:#e7f0e8;border-radius:6px}.pdf-progress{background:#fff;border-radius:12px;padding:48px;text-align:center}.pdf-progress progress{display:block;width:min(700px,100%);height:14px;margin:24px auto 10px;accent-color:#376047}.pdf-frame{display:block;width:100%;height:calc(100vh - 150px);min-height:600px;border:0;background:#fff;border-radius:12px}.pdf-language{display:flex;justify-content:center;align-items:end;gap:14px;margin:20px 0}.pdf-language label{display:flex;flex-direction:column;gap:6px;text-align:left;color:#52665a;font-size:13px}.pdf-language select{border:1px solid #dce4dd;border-radius:6px;padding:8px;background:#fff;color:#26382d}.pdf-upload-zone{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;min-height:150px;margin:28px 0 4px;padding:26px 20px;border:1.5px dashed #8da89a;border-radius:14px;background:#fbfcfa;color:#536b5b;cursor:pointer;transition:.15s ease}.pdf-upload-zone:hover,.pdf-upload-zone.is-dragging{border-color:#376047;background:#eef5ef;box-shadow:0 4px 14px #37604718}.pdf-upload-zone>span{font-size:15px;font-weight:600}.pdf-upload-zone input{display:none}.pdf-upload-zone button{border:0;font:inherit}.pdf-reading-split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:18px;width:100%;max-width:none;margin:22px 0;padding:0;box-sizing:border-box}.pdf-reading-split.pdf-reading-single{grid-template-columns:minmax(0,1fr);width:min(100%,1400px);margin-inline:auto}.pdf-pane{min-width:0;max-width:100%;overflow:hidden;background:#fff;border-radius:14px;padding:16px;box-shadow:0 3px 18px #203a2910}.pdf-pane h2{margin:0 0 12px;font-size:16px;color:#12305a}.pdf-pane h2 span{float:right;color:#5b846a;font-size:14px}.pdf-translation-pane{min-height:520px}.pdf-page-progress{display:grid;gap:8px;padding:4px 2px 16px;color:#52665a;font-size:13px}.pdf-page-progress strong{font-size:18px;color:#12305a}.pdf-page-progress small{color:#718075}.pdf-page-progress progress{width:100%;height:8px;accent-color:#376047}.pdf-page-progress>span{font-size:12px;color:#718075}.pdf-page-reading{display:grid;gap:10px;min-height:0}.pdf-page-tabs{display:flex;gap:6px;overflow-x:auto;padding:0 2px 4px;scrollbar-width:thin}.pdf-page-tabs button{flex:0 0 auto;border:1px solid #dce8df;border-radius:999px;padding:7px 11px;background:#f8faf8;color:#52665a;font:inherit;font-size:12px;cursor:pointer;transition:.15s ease}.pdf-page-tabs button:hover{border-color:#7da38a;background:#eef5ef}.pdf-page-tabs button.active{border-color:#376047;background:#e7f0e8;color:#315b3d;font-weight:600}.pdf-translated-page{overflow:hidden;border:1px solid #e4ebe6;border-radius:12px;background:#f7f9f7}.pdf-translated-page-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 12px;font-size:13px;color:#315b3d;background:#eef5ef;border-bottom:1px solid #dce8df}.pdf-translated-page-heading span{font-size:12px;color:#718075}.pdf-translated-page .mature-pdf-viewer{height:calc(100vh - 335px);min-height:560px;border:0;border-radius:0}.pdf-progress-empty{margin-top:24px;padding:40px 20px}.pdf-translation-pane>.pdf-progress{margin-top:0}@media(max-width:800px){.pdf-reading-split{grid-template-columns:1fr;padding:0 10px}.pdf-translated-page .mature-pdf-viewer{height:calc(100vh - 390px);min-height:500px}}.pdf-embedded-loading{min-height:240px;display:flex;align-items:center;justify-content:center;gap:10px;color:#64766c;background:#f8faf8;border-radius:12px}.pdf-embedded-loading .pdf-spinner{width:18px;height:18px;border:2px solid #cbd8cf;border-top-color:#38684c;border-radius:50%;animation:pdf-spin .8s linear infinite}@keyframes pdf-spin{to{transform:rotate(360deg)}}.mature-pdf-viewer{width:100%;height:calc(100vh - 220px);min-height:620px;border:1px solid #e4ebe6;border-radius:12px;overflow:hidden;background:#fff;box-sizing:border-box}.mature-pdf-viewer>div{width:100%;height:100%;min-width:0}.ebook-reader-workspace{--reader-ink:#183454;--reader-muted:#708092;--reader-sage:#3f7658;--reader-paper:#fffefa;min-height:calc(100vh - 68px);background:#f7f6f2;color:var(--reader-ink)}.ebook-reader-workspace .ebook-context-bar{background:#fbfaf7;border-bottom:1px solid #e5e2da}.ebook-reader-workspace .ebook-context-inner{width:min(1380px,calc(100% - 56px));min-height:58px;margin:0 auto;display:flex;align-items:center;gap:24px}.ebook-reader-workspace .ebook-context-leading{display:flex;align-items:center;gap:10px;min-width:0;flex:1;color:var(--reader-muted);font-size:13px}.ebook-reader-workspace .ebook-context-leading strong{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--reader-ink);font-size:13px;font-weight:600}.ebook-reader-workspace .ebook-context-leading>span:not(.ebook-context-divider){font-size:13px;color:var(--reader-muted)}.ebook-reader-workspace .ebook-context-back{flex:none;border:0;background:transparent;padding:7px 0;color:#5b6d7f;font:600 13px/1.4 inherit;cursor:pointer;white-space:nowrap}.ebook-reader-workspace .ebook-context-back:hover{color:var(--reader-ink)}.ebook-reader-workspace .ebook-context-back:disabled{opacity:.55;cursor:default}.ebook-reader-workspace .ebook-context-divider{color:#b0b8b3;font-size:16px}.ebook-reader-workspace .ebook-context-progress{display:grid;grid-template-columns:minmax(0,auto) minmax(130px,240px) auto;align-items:center;gap:10px;flex:0 1 410px;min-width:220px;color:#567160;font-size:12px}.ebook-reader-workspace .ebook-context-progress>span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.ebook-reader-workspace .ebook-context-progress progress{width:100%;height:5px;accent-color:var(--reader-sage)}.ebook-reader-workspace .ebook-context-progress small{color:#819087;font-size:11px}.ebook-reader-workspace .ebook-context-bar .ebook-upload{display:inline-flex;align-items:center;justify-content:center;flex:none;background:#718198;color:#fff;border-radius:8px;padding:9px 14px;font-size:13px;font-weight:600;line-height:1.4;white-space:nowrap}.ebook-reader-workspace .ebook-context-bar .ebook-upload:hover{background:#5f7087}.ebook-reader-workspace .ebook-context-bar .ebook-upload input{display:none}.ebook-reader-workspace .ebook-layout{width:min(1380px,calc(100% - 56px));max-width:none;grid-template-columns:250px minmax(0,1fr);gap:20px;margin:24px auto 48px;padding:0;align-items:start}.ebook-reader-workspace .ebook-layout aside{box-sizing:border-box;background:#ffffffc7;border:1px solid #e4e1d9;border-radius:14px;padding:18px 14px 14px;box-shadow:0 8px 24px #243b5310;top:20px}.ebook-reader-workspace .ebook-layout aside h2{margin:0 4px 14px;color:var(--reader-ink);font-size:15px;line-height:1.4}.ebook-reader-workspace .ebook-layout aside .ebook-sidebar-book{margin:0 4px 5px;color:#2b4663;font-size:13px;font-weight:600;line-height:1.45;overflow-wrap:anywhere}.ebook-reader-workspace .ebook-layout aside .ebook-progress{margin:0 4px 14px!important;color:#839087;font-size:12px}.ebook-reader-workspace .ebook-layout aside nav{max-height:calc(100vh - 250px);padding-right:2px}.ebook-reader-workspace .ebook-layout aside nav button{padding:9px 10px;color:#617268;font-size:13px;line-height:1.35}.ebook-reader-workspace .ebook-layout aside nav button:hover{background:#f4f7f3;color:#315b43}.ebook-reader-workspace .ebook-layout aside nav button.active{background:#edf3ee;color:#315b43;box-shadow:inset 3px 0 #4b8463;font-weight:600}.ebook-reader-workspace .ebook-layout article{box-sizing:border-box;min-width:0;background:var(--reader-paper);border:1px solid #e4e1d9;border-radius:16px;padding:40px clamp(32px,5vw,72px) 56px;box-shadow:0 12px 36px #25384b0d}.ebook-reader-workspace .ebook-reader-toolbar{display:flex;align-items:flex-start;justify-content:space-between;gap:24px;margin-bottom:0;padding:0 0 22px;border-bottom:1px solid #ece8de}.ebook-reader-workspace .ebook-reader-title-wrap{display:grid;gap:12px;min-width:0}.ebook-reader-workspace .ebook-reader-toolbar h1{margin:0;color:var(--reader-ink);font-size:clamp(24px,2.4vw,32px);font-weight:700;line-height:1.25;letter-spacing:-.02em}.ebook-reader-workspace .ebook-reader-action{width:-moz-max-content;width:max-content;border:1px solid #c9d9cc;background:#fff;color:#376149;border-radius:8px;padding:8px 12px;font:600 13px/1.4 inherit;cursor:pointer}.ebook-reader-workspace .ebook-reader-action:hover{background:#f1f7f1;border-color:#a9c3ae}.ebook-reader-workspace .ebook-reader-action:disabled{opacity:.55;cursor:default}.ebook-reader-workspace .ebook-save-status{display:inline-flex;align-items:center;gap:7px;width:-moz-max-content;width:max-content;padding:7px 11px;border-radius:999px;background:#eaf3eb;color:#3c6d50;font-size:13px;font-weight:600;line-height:1.35}.ebook-reader-workspace .ebook-save-status>span{display:grid;place-items:center;width:16px;height:16px;border-radius:50%;background:#5f9673;color:#fff;font-size:11px;line-height:1}.ebook-reader-workspace .ebook-mode{flex:none;margin-top:2px;border:1px solid #dbe3df;border-radius:9px;background:#fff;box-shadow:0 1px 2px #213b5208}.ebook-reader-workspace .ebook-mode button{padding:8px 13px;color:#6a7a78;font-size:13px}.ebook-reader-workspace .ebook-mode button:hover{background:#f5f8f5;color:#315b43}.ebook-reader-workspace .ebook-mode button.active{background:#e8f1ea;color:#315b43;font-weight:600}.ebook-reader-workspace .ebook-block{max-width:920px;margin:26px 0}.ebook-reader-workspace .ebook-block p{margin:7px 0;color:#263f5c;font-size:16px;line-height:1.9;letter-spacing:.005em}.ebook-reader-workspace .ebook-block p.ebook-translated{color:#365570}.ebook-reader-workspace .ebook-placeholder{color:#81958a;border-left-color:#b7d0bc;font-size:14px}.ebook-reader-workspace .ebook-chapter-navigation{max-width:920px;margin-top:38px;padding-top:18px;border-top:1px solid #e4e2da}.ebook-reader-workspace .ebook-chapter-navigation button{border-radius:7px;color:#526b5c;font-size:13px}.ebook-reader-workspace .ebook-chapter-navigation button:hover:not(:disabled){background:#f0f5f0;color:#315b43}.ebook-reader-workspace .ebook-empty{margin:64px auto;max-width:760px;background:var(--reader-paper);border:1px solid #e4e1d9;box-shadow:0 12px 32px #25384b0d}.ebook-reader-workspace .ebook-error{padding:12px max(28px,calc((100% - 1380px)/2));background:#fff1ec;color:#a34b3a}@media(max-width:900px){.ebook-reader-workspace .ebook-context-inner{width:calc(100% - 36px);gap:14px}.ebook-reader-workspace .ebook-context-progress{flex-basis:300px;min-width:180px}.ebook-reader-workspace .ebook-layout{width:calc(100% - 36px);grid-template-columns:220px minmax(0,1fr);gap:16px}.ebook-reader-workspace .ebook-layout article{padding-inline:32px}}@media(max-width:760px){.ebook-reader-workspace .ebook-context-inner{flex-wrap:wrap;padding:10px 0;gap:8px 14px}.ebook-reader-workspace .ebook-context-leading{order:1;flex:1 1 calc(100% - 150px)}.ebook-reader-workspace .ebook-context-bar .ebook-upload{order:2}.ebook-reader-workspace .ebook-context-progress{order:3;flex:1 0 100%;min-width:0;grid-template-columns:minmax(0,1fr) minmax(110px,1fr) auto}.ebook-reader-workspace .ebook-layout{display:block;width:calc(100% - 24px);margin-top:16px}.ebook-reader-workspace .ebook-layout aside{position:static;margin-bottom:14px}.ebook-reader-workspace .ebook-layout aside nav{max-height:180px}.ebook-reader-workspace .ebook-layout article{padding:26px 20px 38px;border-radius:13px}.ebook-reader-workspace .ebook-reader-toolbar{flex-direction:column;gap:16px}.ebook-reader-workspace .ebook-mode{align-self:flex-start}.ebook-reader-workspace .ebook-block p{font-size:15px;line-height:1.85}.ebook-reader-workspace .ebook-empty{margin:32px 12px;padding:32px 18px}}:root{--langbox-brand-rgb: 18 48 90;--langbox-brand-strong-rgb: 13 39 76;--langbox-brand-soft-rgb: 242 245 248;--langbox-brand-border-rgb: 200 210 222;--learning-ink-rgb: 16 43 81;--learning-muted-rgb: 109 117 131;--learning-subtle-rgb: 139 145 155;--learning-gold-rgb: 154 112 48;--learning-gold-soft-rgb: 210 173 104;--learning-paper-rgb: 255 254 250;--learning-paper-muted-rgb: 248 246 240;--langbox-page-rgb: 247 246 242;--learning-wash-rgb: 243 240 232;--learning-wash-strong-rgb: 235 229 216;--learning-line-rgb: 222 219 211;--learning-line-strong-rgb: 200 193 178;--learning-line-soft-rgb: 232 228 220;--learning-track-rgb: 201 199 193;--langbox-brand: rgb(var(--langbox-brand-rgb));--langbox-brand-strong: rgb(var(--langbox-brand-strong-rgb));--langbox-brand-soft: rgb(var(--langbox-brand-soft-rgb));--langbox-brand-border: rgb(var(--langbox-brand-border-rgb));--learning-ink: rgb(var(--learning-ink-rgb));--learning-muted: rgb(var(--learning-muted-rgb));--learning-subtle: rgb(var(--learning-subtle-rgb));--learning-gold: rgb(var(--learning-gold-rgb));--learning-gold-soft: rgb(var(--learning-gold-soft-rgb));--learning-paper: rgb(var(--learning-paper-rgb));--learning-paper-muted: rgb(var(--learning-paper-muted-rgb));--langbox-page: rgb(var(--langbox-page-rgb));--learning-wash: rgb(var(--learning-wash-rgb));--learning-wash-strong: rgb(var(--learning-wash-strong-rgb));--learning-line: rgb(var(--learning-line-rgb));--learning-line-strong: rgb(var(--learning-line-strong-rgb));--learning-line-soft: rgb(var(--learning-line-soft-rgb));--learning-track: rgb(var(--learning-track-rgb));--langbox-serif: Georgia, "Times New Roman", serif;--langbox-sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif}*,:before,:after{--tw-border-spacing-x: 0;--tw-border-spacing-y: 0;--tw-translate-x: 0;--tw-translate-y: 0;--tw-rotate: 0;--tw-skew-x: 0;--tw-skew-y: 0;--tw-scale-x: 1;--tw-scale-y: 1;--tw-pan-x: ;--tw-pan-y: ;--tw-pinch-zoom: ;--tw-scroll-snap-strictness: proximity;--tw-gradient-from-position: ;--tw-gradient-via-position: ;--tw-gradient-to-position: ;--tw-ordinal: ;--tw-slashed-zero: ;--tw-numeric-figure: ;--tw-numeric-spacing: ;--tw-numeric-fraction: ;--tw-ring-inset: ;--tw-ring-offset-width: 0px;--tw-ring-offset-color: #fff;--tw-ring-color: rgb(59 130 246 / .5);--tw-ring-offset-shadow: 0 0 #0000;--tw-ring-shadow: 0 0 #0000;--tw-shadow: 0 0 #0000;--tw-shadow-colored: 0 0 #0000;--tw-blur: ;--tw-brightness: ;--tw-contrast: ;--tw-grayscale: ;--tw-hue-rotate: ;--tw-invert: ;--tw-saturate: ;--tw-sepia: ;--tw-drop-shadow: ;--tw-backdrop-blur: ;--tw-backdrop-brightness: ;--tw-backdrop-contrast: ;--tw-backdrop-grayscale: ;--tw-backdrop-hue-rotate: ;--tw-backdrop-invert: ;--tw-backdrop-opacity: ;--tw-backdrop-saturate: ;--tw-backdrop-sepia: ;--tw-contain-size: ;--tw-contain-layout: ;--tw-contain-paint: ;--tw-contain-style: }::backdrop{--tw-border-spacing-x: 0;--tw-border-spacing-y: 0;--tw-translate-x: 0;--tw-translate-y: 0;--tw-rotate: 0;--tw-skew-x: 0;--tw-skew-y: 0;--tw-scale-x: 1;--tw-scale-y: 1;--tw-pan-x: ;--tw-pan-y: ;--tw-pinch-zoom: ;--tw-scroll-snap-strictness: proximity;--tw-gradient-from-position: ;--tw-gradient-via-position: ;--tw-gradient-to-position: ;--tw-ordinal: ;--tw-slashed-zero: ;--tw-numeric-figure: ;--tw-numeric-spacing: ;--tw-numeric-fraction: ;--tw-ring-inset: ;--tw-ring-offset-width: 0px;--tw-ring-offset-color: #fff;--tw-ring-color: rgb(59 130 246 / .5);--tw-ring-offset-shadow: 0 0 #0000;--tw-ring-shadow: 0 0 #0000;--tw-shadow: 0 0 #0000;--tw-shadow-colored: 0 0 #0000;--tw-blur: ;--tw-brightness: ;--tw-contrast: ;--tw-grayscale: ;--tw-hue-rotate: ;--tw-invert: ;--tw-saturate: ;--tw-sepia: ;--tw-drop-shadow: ;--tw-backdrop-blur: ;--tw-backdrop-brightness: ;--tw-backdrop-contrast: ;--tw-backdrop-grayscale: ;--tw-backdrop-hue-rotate: ;--tw-backdrop-invert: ;--tw-backdrop-opacity: ;--tw-backdrop-saturate: ;--tw-backdrop-sepia: ;--tw-contain-size: ;--tw-contain-layout: ;--tw-contain-paint: ;--tw-contain-style: }.\!container{width:100%!important}.container{width:100%}@media(min-width:640px){.\!container{max-width:640px!important}.container{max-width:640px}}@media(min-width:768px){.\!container{max-width:768px!important}.container{max-width:768px}}@media(min-width:1024px){.\!container{max-width:1024px!important}.container{max-width:1024px}}@media(min-width:1280px){.\!container{max-width:1280px!important}.container{max-width:1280px}}@media(min-width:1536px){.\!container{max-width:1536px!important}.container{max-width:1536px}}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border-width:0}.pointer-events-none{pointer-events:none}.pointer-events-auto{pointer-events:auto}.\!visible{visibility:visible!important}.visible{visibility:visible}.static{position:static}.fixed{position:fixed}.absolute{position:absolute}.relative{position:relative}.sticky{position:sticky}.inset-0{inset:0}.inset-y-0{top:0;bottom:0}.-top-8{top:-2rem}.left-0{left:0}.left-1{left:.25rem}.left-3{left:.75rem}.left-4{left:1rem}.right-0{right:0}.right-1{right:.25rem}.top-0{top:0}.top-4{top:1rem}.top-full{top:100%}.isolate{isolation:isolate}.z-20{z-index:20}.z-40{z-index:40}.z-50{z-index:50}.z-\[2147483647\]{z-index:2147483647}.m-auto{margin:auto}.mx-auto{margin-left:auto;margin-right:auto}.mb-3{margin-bottom:.75rem}.mb-6{margin-bottom:1.5rem}.ml-1{margin-left:.25rem}.ml-2{margin-left:.5rem}.ml-3{margin-left:.75rem}.ml-auto{margin-left:auto}.mr-2{margin-right:.5rem}.mr-3{margin-right:.75rem}.mt-0\.5{margin-top:.125rem}.mt-1{margin-top:.25rem}.mt-1\.5{margin-top:.375rem}.mt-2{margin-top:.5rem}.mt-3{margin-top:.75rem}.mt-4{margin-top:1rem}.mt-5{margin-top:1.25rem}.mt-6{margin-top:1.5rem}.mt-\[0\.6875rem\]{margin-top:.6875rem}.mt-auto{margin-top:auto}.\!block{display:block!important}.block{display:block}.inline-block{display:inline-block}.inline{display:inline}.flex{display:flex}.inline-flex{display:inline-flex}.table{display:table}.grid{display:grid}.contents{display:contents}.hidden{display:none}.aspect-\[2\/3\]{aspect-ratio:2/3}.h-1\.5{height:.375rem}.h-10{height:2.5rem}.h-2{height:.5rem}.h-20{height:5rem}.h-3\.5{height:.875rem}.h-4{height:1rem}.h-48{height:12rem}.h-5{height:1.25rem}.h-6{height:1.5rem}.h-7{height:1.75rem}.h-8{height:2rem}.h-9{height:2.25rem}.h-\[1\.875rem\]{height:1.875rem}.h-\[2\.875rem\]{height:2.875rem}.h-\[80vh\]{height:80vh}.h-full{height:100%}.h-screen{height:100vh}.max-h-\[min\(20rem\,var\(--radix-select-content-available-height\)\)\]{max-height:min(20rem,var(--radix-select-content-available-height))}.max-h-full{max-height:100%}.min-h-12{min-height:3rem}.min-h-56{min-height:14rem}.min-h-9{min-height:2.25rem}.min-h-\[2\.625rem\]{min-height:2.625rem}.min-h-\[28rem\]{min-height:28rem}.min-h-\[3\.125rem\]{min-height:3.125rem}.min-h-\[3\.375rem\]{min-height:3.375rem}.min-h-screen{min-height:100vh}.w-0\.5{width:.125rem}.w-1\.5{width:.375rem}.w-11{width:2.75rem}.w-14{width:3.5rem}.w-16{width:4rem}.w-2{width:.5rem}.w-24{width:6rem}.w-28{width:7rem}.w-3\.5{width:.875rem}.w-4{width:1rem}.w-44{width:11rem}.w-5{width:1.25rem}.w-6{width:1.5rem}.w-7{width:1.75rem}.w-8{width:2rem}.w-9{width:2.25rem}.w-\[1\.875rem\]{width:1.875rem}.w-\[22\.5rem\]{width:22.5rem}.w-\[8\.25rem\]{width:8.25rem}.w-\[min\(17\.875rem\,calc\(100vw-2\.25rem\)\)\]{width:min(17.875rem,calc(100vw - 2.25rem))}.w-\[min\(57\.5rem\,100\%\)\]{width:min(57.5rem,100%)}.w-auto{width:auto}.w-full{width:100%}.min-w-0{min-width:0px}.min-w-\[var\(--radix-select-trigger-width\)\]{min-width:var(--radix-select-trigger-width)}.max-w-2xl{max-width:42rem}.max-w-3xl{max-width:48rem}.max-w-\[8\.25rem\]{max-width:8.25rem}.max-w-full{max-width:100%}.flex-1{flex:1 1 0%}.flex-shrink-0,.shrink-0{flex-shrink:0}.flex-grow,.grow{flex-grow:1}.origin-left{transform-origin:left}.origin-right{transform-origin:right}.-translate-x-full{--tw-translate-x: -100%;transform:translate(var(--tw-translate-x),var(--tw-translate-y)) rotate(var(--tw-rotate)) skew(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))}.-translate-y-1{--tw-translate-y: -.25rem;transform:translate(var(--tw-translate-x),var(--tw-translate-y)) rotate(var(--tw-rotate)) skew(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))}.translate-x-0{--tw-translate-x: 0px;transform:translate(var(--tw-translate-x),var(--tw-translate-y)) rotate(var(--tw-rotate)) skew(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))}.translate-x-0\.5{--tw-translate-x: .125rem;transform:translate(var(--tw-translate-x),var(--tw-translate-y)) rotate(var(--tw-rotate)) skew(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))}.transform{transform:translate(var(--tw-translate-x),var(--tw-translate-y)) rotate(var(--tw-rotate)) skew(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))}@keyframes pulse{50%{opacity:.5}}.animate-pulse{animation:pulse 2s cubic-bezier(.4,0,.6,1) infinite}.cursor-grab{cursor:grab}.cursor-grabbing{cursor:grabbing}.cursor-not-allowed{cursor:not-allowed}.cursor-pointer{cursor:pointer}.select-none{-webkit-user-select:none;-moz-user-select:none;user-select:none}.resize{resize:both}.scroll-mt-16{scroll-margin-top:4rem}.grid-cols-5{grid-template-columns:repeat(5,minmax(0,1fr))}.grid-cols-\[1\.75rem_minmax\(0\,1fr\)_auto\]{grid-template-columns:1.75rem minmax(0,1fr) auto}.flex-col{flex-direction:column}.flex-wrap{flex-wrap:wrap}.items-start{align-items:flex-start}.items-end{align-items:flex-end}.items-center{align-items:center}.items-stretch{align-items:stretch}.justify-start{justify-content:flex-start}.justify-end{justify-content:flex-end}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.gap-1{gap:.25rem}.gap-2{gap:.5rem}.gap-2\.5{gap:.625rem}.gap-3{gap:.75rem}.gap-4{gap:1rem}.gap-5{gap:1.25rem}.gap-\[2\.375rem\]{gap:2.375rem}.gap-px{gap:1px}.space-y-1>:not([hidden])~:not([hidden]){--tw-space-y-reverse: 0;margin-top:calc(.25rem * calc(1 - var(--tw-space-y-reverse)));margin-bottom:calc(.25rem * var(--tw-space-y-reverse))}.space-y-1\.5>:not([hidden])~:not([hidden]){--tw-space-y-reverse: 0;margin-top:calc(.375rem * calc(1 - var(--tw-space-y-reverse)));margin-bottom:calc(.375rem * var(--tw-space-y-reverse))}.space-y-2>:not([hidden])~:not([hidden]){--tw-space-y-reverse: 0;margin-top:calc(.5rem * calc(1 - var(--tw-space-y-reverse)));margin-bottom:calc(.5rem * var(--tw-space-y-reverse))}.space-y-3>:not([hidden])~:not([hidden]){--tw-space-y-reverse: 0;margin-top:calc(.75rem * calc(1 - var(--tw-space-y-reverse)));margin-bottom:calc(.75rem * var(--tw-space-y-reverse))}.space-y-4>:not([hidden])~:not([hidden]){--tw-space-y-reverse: 0;margin-top:calc(1rem * calc(1 - var(--tw-space-y-reverse)));margin-bottom:calc(1rem * var(--tw-space-y-reverse))}.space-y-6>:not([hidden])~:not([hidden]){--tw-space-y-reverse: 0;margin-top:calc(1.5rem * calc(1 - var(--tw-space-y-reverse)));margin-bottom:calc(1.5rem * var(--tw-space-y-reverse))}.self-start{align-self:flex-start}.overflow-hidden{overflow:hidden}.overflow-y-auto{overflow-y:auto}.truncate{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.whitespace-nowrap{white-space:nowrap}.break-all{word-break:break-all}.rounded{border-radius:.25rem}.rounded-\[0\.625rem\]{border-radius:.625rem}.rounded-\[3px_9px_9px_3px\]{border-radius:3px 9px 9px 3px}.rounded-control{border-radius:.5625rem}.rounded-full{border-radius:9999px}.rounded-lg{border-radius:.5rem}.rounded-md{border-radius:.375rem}.rounded-surface{border-radius:.875rem}.rounded-xl{border-radius:.75rem}.rounded-l-md{border-top-left-radius:.375rem;border-bottom-left-radius:.375rem}.rounded-r-md{border-top-right-radius:.375rem;border-bottom-right-radius:.375rem}.border{border-width:1px}.border-b{border-bottom-width:1px}.border-r{border-right-width:1px}.border-t{border-top-width:1px}.border-amber-200{--tw-border-opacity: 1;border-color:rgb(253 230 138 / var(--tw-border-opacity, 1))}.border-brand{--tw-border-opacity: 1;border-color:rgb(var(--langbox-brand-rgb) / var(--tw-border-opacity, 1))}.border-line{--tw-border-opacity: 1;border-color:rgb(var(--learning-line-rgb) / var(--tw-border-opacity, 1))}.border-line-soft{--tw-border-opacity: 1;border-color:rgb(var(--learning-line-soft-rgb) / var(--tw-border-opacity, 1))}.border-line-strong{--tw-border-opacity: 1;border-color:rgb(var(--learning-line-strong-rgb) / var(--tw-border-opacity, 1))}.border-red-200{--tw-border-opacity: 1;border-color:rgb(254 202 202 / var(--tw-border-opacity, 1))}.border-slate-200{--tw-border-opacity: 1;border-color:rgb(226 232 240 / var(--tw-border-opacity, 1))}.bg-amber-50{--tw-bg-opacity: 1;background-color:rgb(255 251 235 / var(--tw-bg-opacity, 1))}.bg-black\/50{background-color:#00000080}.bg-brand{--tw-bg-opacity: 1;background-color:rgb(var(--langbox-brand-rgb) / var(--tw-bg-opacity, 1))}.bg-emerald-50{--tw-bg-opacity: 1;background-color:rgb(236 253 245 / var(--tw-bg-opacity, 1))}.bg-gold-soft{--tw-bg-opacity: 1;background-color:rgb(var(--learning-gold-soft-rgb) / var(--tw-bg-opacity, 1))}.bg-green-300{--tw-bg-opacity: 1;background-color:rgb(134 239 172 / var(--tw-bg-opacity, 1))}.bg-ink{--tw-bg-opacity: 1;background-color:rgb(var(--learning-ink-rgb) / var(--tw-bg-opacity, 1))}.bg-line-soft{--tw-bg-opacity: 1;background-color:rgb(var(--learning-line-soft-rgb) / var(--tw-bg-opacity, 1))}.bg-page{--tw-bg-opacity: 1;background-color:rgb(var(--langbox-page-rgb) / var(--tw-bg-opacity, 1))}.bg-paper{--tw-bg-opacity: 1;background-color:rgb(var(--learning-paper-rgb) / var(--tw-bg-opacity, 1))}.bg-paper-muted{--tw-bg-opacity: 1;background-color:rgb(var(--learning-paper-muted-rgb) / var(--tw-bg-opacity, 1))}.bg-paper\/90{background-color:rgb(var(--learning-paper-rgb) / .9)}.bg-red-50{--tw-bg-opacity: 1;background-color:rgb(254 242 242 / var(--tw-bg-opacity, 1))}.bg-red-600{--tw-bg-opacity: 1;background-color:rgb(220 38 38 / var(--tw-bg-opacity, 1))}.bg-track{--tw-bg-opacity: 1;background-color:rgb(var(--learning-track-rgb) / var(--tw-bg-opacity, 1))}.bg-wash{--tw-bg-opacity: 1;background-color:rgb(var(--learning-wash-rgb) / var(--tw-bg-opacity, 1))}.bg-white{--tw-bg-opacity: 1;background-color:rgb(255 255 255 / var(--tw-bg-opacity, 1))}.bg-white\/20{background-color:#fff3}.bg-white\/70{background-color:#ffffffb3}.bg-white\/95{background-color:#fffffff2}.bg-gradient-to-r{background-image:linear-gradient(to right,var(--tw-gradient-stops))}.from-black\/25{--tw-gradient-from: rgb(0 0 0 / .25) var(--tw-gradient-from-position);--tw-gradient-to: rgb(0 0 0 / 0) var(--tw-gradient-to-position);--tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to)}.via-white\/10{--tw-gradient-to: rgb(255 255 255 / 0) var(--tw-gradient-to-position);--tw-gradient-stops: var(--tw-gradient-from), rgb(255 255 255 / .1) var(--tw-gradient-via-position), var(--tw-gradient-to)}.to-transparent{--tw-gradient-to: transparent var(--tw-gradient-to-position)}.object-cover{-o-object-fit:cover;object-fit:cover}.object-center{-o-object-position:center;object-position:center}.p-1{padding:.25rem}.p-2{padding:.5rem}.p-3{padding:.75rem}.p-4{padding:1rem}.p-5{padding:1.25rem}.px-1{padding-left:.25rem;padding-right:.25rem}.px-2{padding-left:.5rem;padding-right:.5rem}.px-2\.5{padding-left:.625rem;padding-right:.625rem}.px-3{padding-left:.75rem;padding-right:.75rem}.px-4{padding-left:1rem;padding-right:1rem}.px-5{padding-left:1.25rem;padding-right:1.25rem}.px-\[1\.125rem\]{padding-left:1.125rem;padding-right:1.125rem}.py-0\.5{padding-top:.125rem;padding-bottom:.125rem}.py-1{padding-top:.25rem;padding-bottom:.25rem}.py-2{padding-top:.5rem;padding-bottom:.5rem}.py-2\.5{padding-top:.625rem;padding-bottom:.625rem}.py-3{padding-top:.75rem;padding-bottom:.75rem}.py-3\.5{padding-top:.875rem;padding-bottom:.875rem}.py-4{padding-top:1rem;padding-bottom:1rem}.pb-12{padding-bottom:3rem}.pb-\[2\.125rem\]{padding-bottom:2.125rem}.pl-9{padding-left:2.25rem}.pr-3{padding-right:.75rem}.pt-1{padding-top:.25rem}.pt-4{padding-top:1rem}.pt-5{padding-top:1.25rem}.pt-\[2\.125rem\]{padding-top:2.125rem}.pt-\[4\.75rem\]{padding-top:4.75rem}.text-left{text-align:left}.font-serif{font-family:var(--langbox-serif)}.text-2xs{font-size:.6875rem;line-height:1rem}.text-\[1\.1875rem\]{font-size:1.1875rem}.text-\[1\.8125rem\]{font-size:1.8125rem}.text-\[clamp\(2rem\,4vw\,2\.75rem\)\]{font-size:clamp(2rem,4vw,2.75rem)}.text-base{font-size:1rem;line-height:1.5rem}.text-lg{font-size:1.125rem;line-height:1.75rem}.text-sm{font-size:.875rem;line-height:1.25rem}.text-xl{font-size:1.25rem;line-height:1.75rem}.text-xs{font-size:.75rem;line-height:1rem}.font-bold{font-weight:700}.font-extrabold{font-weight:800}.font-medium{font-weight:500}.font-normal{font-weight:400}.font-semibold{font-weight:600}.uppercase{text-transform:uppercase}.leading-5{line-height:1.25rem}.leading-6{line-height:1.5rem}.leading-none{line-height:1}.tracking-\[-0\.025em\]{letter-spacing:-.025em}.tracking-\[-0\.035em\]{letter-spacing:-.035em}.tracking-\[0\.12em\]{letter-spacing:.12em}.tracking-\[0\.13em\]{letter-spacing:.13em}.tracking-\[0\.14em\]{letter-spacing:.14em}.tracking-wider{letter-spacing:.05em}.text-amber-900{--tw-text-opacity: 1;color:rgb(120 53 15 / var(--tw-text-opacity, 1))}.text-brand{--tw-text-opacity: 1;color:rgb(var(--langbox-brand-rgb) / var(--tw-text-opacity, 1))}.text-emerald-700{--tw-text-opacity: 1;color:rgb(4 120 87 / var(--tw-text-opacity, 1))}.text-gold{--tw-text-opacity: 1;color:rgb(var(--learning-gold-rgb) / var(--tw-text-opacity, 1))}.text-ink{--tw-text-opacity: 1;color:rgb(var(--learning-ink-rgb) / var(--tw-text-opacity, 1))}.text-muted{--tw-text-opacity: 1;color:rgb(var(--learning-muted-rgb) / var(--tw-text-opacity, 1))}.text-red-600{--tw-text-opacity: 1;color:rgb(220 38 38 / var(--tw-text-opacity, 1))}.text-red-700{--tw-text-opacity: 1;color:rgb(185 28 28 / var(--tw-text-opacity, 1))}.text-slate-500{--tw-text-opacity: 1;color:rgb(100 116 139 / var(--tw-text-opacity, 1))}.text-transparent{color:transparent}.text-white{--tw-text-opacity: 1;color:rgb(255 255 255 / var(--tw-text-opacity, 1))}.antialiased{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.opacity-0{opacity:0}.opacity-50{opacity:.5}.shadow{--tw-shadow: 0 1px 3px 0 rgb(0 0 0 / .1), 0 1px 2px -1px rgb(0 0 0 / .1);--tw-shadow-colored: 0 1px 3px 0 var(--tw-shadow-color), 0 1px 2px -1px var(--tw-shadow-color);box-shadow:var(--tw-ring-offset-shadow, 0 0 #0000),var(--tw-ring-shadow, 0 0 #0000),var(--tw-shadow)}.shadow-\[0_18px_32px_-16px_rgb\(15_23_42\/0\.7\)\]{--tw-shadow: 0 18px 32px -16px rgb(15 23 42/.7);--tw-shadow-colored: 0 18px 32px -16px var(--tw-shadow-color);box-shadow:var(--tw-ring-offset-shadow, 0 0 #0000),var(--tw-ring-shadow, 0 0 #0000),var(--tw-shadow)}.shadow-\[4px_0_20px_rgb\(31_42_60\/0\.025\)\]{--tw-shadow: 4px 0 20px rgb(31 42 60/.025);--tw-shadow-colored: 4px 0 20px var(--tw-shadow-color);box-shadow:var(--tw-ring-offset-shadow, 0 0 #0000),var(--tw-ring-shadow, 0 0 #0000),var(--tw-shadow)}.shadow-\[inset_3px_0_var\(--learning-gold\)\]{--tw-shadow: inset 3px 0 var(--learning-gold);--tw-shadow-colored: inset 3px 0 var(--tw-shadow-color);box-shadow:var(--tw-ring-offset-shadow, 0 0 #0000),var(--tw-ring-shadow, 0 0 #0000),var(--tw-shadow)}.shadow-action{--tw-shadow: 0 6px 16px rgb(18 48 90 / .16);--tw-shadow-colored: 0 6px 16px var(--tw-shadow-color);box-shadow:var(--tw-ring-offset-shadow, 0 0 #0000),var(--tw-ring-shadow, 0 0 #0000),var(--tw-shadow)}.shadow-lg{--tw-shadow: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1);--tw-shadow-colored: 0 10px 15px -3px var(--tw-shadow-color), 0 4px 6px -4px var(--tw-shadow-color);box-shadow:var(--tw-ring-offset-shadow, 0 0 #0000),var(--tw-ring-shadow, 0 0 #0000),var(--tw-shadow)}.shadow-md{--tw-shadow: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--tw-shadow-colored: 0 4px 6px -1px var(--tw-shadow-color), 0 2px 4px -2px var(--tw-shadow-color);box-shadow:var(--tw-ring-offset-shadow, 0 0 #0000),var(--tw-ring-shadow, 0 0 #0000),var(--tw-shadow)}.shadow-panel{--tw-shadow: 0 8px 26px rgb(31 42 60 / .045);--tw-shadow-colored: 0 8px 26px var(--tw-shadow-color);box-shadow:var(--tw-ring-offset-shadow, 0 0 #0000),var(--tw-ring-shadow, 0 0 #0000),var(--tw-shadow)}.shadow-popup{--tw-shadow: 0 10px 28px rgb(31 42 60 / .055);--tw-shadow-colored: 0 10px 28px var(--tw-shadow-color);box-shadow:var(--tw-ring-offset-shadow, 0 0 #0000),var(--tw-ring-shadow, 0 0 #0000),var(--tw-shadow)}.shadow-sm{--tw-shadow: 0 1px 2px 0 rgb(0 0 0 / .05);--tw-shadow-colored: 0 1px 2px 0 var(--tw-shadow-color);box-shadow:var(--tw-ring-offset-shadow, 0 0 #0000),var(--tw-ring-shadow, 0 0 #0000),var(--tw-shadow)}.shadow-xl{--tw-shadow: 0 20px 25px -5px rgb(0 0 0 / .1), 0 8px 10px -6px rgb(0 0 0 / .1);--tw-shadow-colored: 0 20px 25px -5px var(--tw-shadow-color), 0 8px 10px -6px var(--tw-shadow-color);box-shadow:var(--tw-ring-offset-shadow, 0 0 #0000),var(--tw-ring-shadow, 0 0 #0000),var(--tw-shadow)}.shadow-ink\/10{--tw-shadow-color: rgb(var(--learning-ink-rgb) / .1);--tw-shadow: var(--tw-shadow-colored)}.outline-none{outline:2px solid transparent;outline-offset:2px}.outline{outline-style:solid}.ring-1{--tw-ring-offset-shadow: var(--tw-ring-inset) 0 0 0 var(--tw-ring-offset-width) var(--tw-ring-offset-color);--tw-ring-shadow: var(--tw-ring-inset) 0 0 0 calc(1px + var(--tw-ring-offset-width)) var(--tw-ring-color);box-shadow:var(--tw-ring-offset-shadow),var(--tw-ring-shadow),var(--tw-shadow, 0 0 #0000)}.ring-2{--tw-ring-offset-shadow: var(--tw-ring-inset) 0 0 0 var(--tw-ring-offset-width) var(--tw-ring-offset-color);--tw-ring-shadow: var(--tw-ring-inset) 0 0 0 calc(2px + var(--tw-ring-offset-width)) var(--tw-ring-color);box-shadow:var(--tw-ring-offset-shadow),var(--tw-ring-shadow),var(--tw-shadow, 0 0 #0000)}.ring-inset{--tw-ring-inset: inset}.ring-black\/10{--tw-ring-color: rgb(0 0 0 / .1)}.ring-black\/15{--tw-ring-color: rgb(0 0 0 / .15)}.ring-blue-500{--tw-ring-opacity: 1;--tw-ring-color: rgb(59 130 246 / var(--tw-ring-opacity, 1))}.ring-gold{--tw-ring-opacity: 1;--tw-ring-color: rgb(var(--learning-gold-rgb) / var(--tw-ring-opacity, 1))}.ring-line{--tw-ring-opacity: 1;--tw-ring-color: rgb(var(--learning-line-rgb) / var(--tw-ring-opacity, 1))}.ring-line-strong{--tw-ring-opacity: 1;--tw-ring-color: rgb(var(--learning-line-strong-rgb) / var(--tw-ring-opacity, 1))}.ring-transparent{--tw-ring-color: transparent}.ring-offset-2{--tw-ring-offset-width: 2px}.drop-shadow{--tw-drop-shadow: drop-shadow(0 1px 2px rgb(0 0 0 / .1)) drop-shadow(0 1px 1px rgb(0 0 0 / .06));filter:var(--tw-blur) var(--tw-brightness) var(--tw-contrast) var(--tw-grayscale) var(--tw-hue-rotate) var(--tw-invert) var(--tw-saturate) var(--tw-sepia) var(--tw-drop-shadow)}.filter{filter:var(--tw-blur) var(--tw-brightness) var(--tw-contrast) var(--tw-grayscale) var(--tw-hue-rotate) var(--tw-invert) var(--tw-saturate) var(--tw-sepia) var(--tw-drop-shadow)}.transition{transition-property:color,background-color,border-color,text-decoration-color,fill,stroke,opacity,box-shadow,transform,filter,backdrop-filter;transition-timing-function:cubic-bezier(.4,0,.2,1);transition-duration:.15s}.transition-\[top\,left\,right\]{transition-property:top,left,right;transition-timing-function:cubic-bezier(.4,0,.2,1);transition-duration:.15s}.transition-colors{transition-property:color,background-color,border-color,text-decoration-color,fill,stroke;transition-timing-function:cubic-bezier(.4,0,.2,1);transition-duration:.15s}.transition-opacity{transition-property:opacity;transition-timing-function:cubic-bezier(.4,0,.2,1);transition-duration:.15s}.transition-transform{transition-property:transform;transition-timing-function:cubic-bezier(.4,0,.2,1);transition-duration:.15s}.duration-100{transition-duration:.1s}.duration-200{transition-duration:.2s}.duration-300{transition-duration:.3s}.ease-in-out{transition-timing-function:cubic-bezier(.4,0,.2,1)}.ease-out{transition-timing-function:cubic-bezier(0,0,.2,1)}.will-change-transform{will-change:transform}:where(.settings-shell){font-family:var(--langbox-sans);color:var(--learning-ink);line-height:1.5}:where(.settings-shell,.settings-shell *){box-sizing:border-box;border-width:0;border-style:solid}:where(.settings-shell h1,.settings-shell h2,.settings-shell h3,.settings-shell p,.settings-shell ul,.settings-shell fieldset){margin:0;padding:0}:where(.settings-shell ul){list-style:none}:where(.settings-shell a){color:inherit;text-decoration:none}:where(.settings-shell button,.settings-shell input,.settings-shell select){font:inherit}:where(.settings-shell button){cursor:pointer}:where(.settings-shell img,.settings-shell svg){display:block}:where(.settings-shell button:disabled){cursor:not-allowed}:where(.settings-shell input:not([type=checkbox]),.settings-shell select){background:var(--learning-paper);color:var(--learning-ink);border-color:var(--learning-line-strong)}.focus-within\:border-gold:focus-within{--tw-border-opacity: 1;border-color:rgb(var(--learning-gold-rgb) / var(--tw-border-opacity, 1))}.focus-within\:ring-2:focus-within{--tw-ring-offset-shadow: var(--tw-ring-inset) 0 0 0 var(--tw-ring-offset-width) var(--tw-ring-offset-color);--tw-ring-shadow: var(--tw-ring-inset) 0 0 0 calc(2px + var(--tw-ring-offset-width)) var(--tw-ring-color);box-shadow:var(--tw-ring-offset-shadow),var(--tw-ring-shadow),var(--tw-shadow, 0 0 #0000)}.focus-within\:ring-gold\/10:focus-within{--tw-ring-color: rgb(var(--learning-gold-rgb) / .1)}.hover\:-translate-y-0\.5:hover{--tw-translate-y: -.125rem;transform:translate(var(--tw-translate-x),var(--tw-translate-y)) rotate(var(--tw-rotate)) skew(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))}.hover\:scale-105:hover{--tw-scale-x: 1.05;--tw-scale-y: 1.05;transform:translate(var(--tw-translate-x),var(--tw-translate-y)) rotate(var(--tw-rotate)) skew(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))}.hover\:border-line-strong:hover{--tw-border-opacity: 1;border-color:rgb(var(--learning-line-strong-rgb) / var(--tw-border-opacity, 1))}.hover\:bg-brand-strong:hover{--tw-bg-opacity: 1;background-color:rgb(var(--langbox-brand-strong-rgb) / var(--tw-bg-opacity, 1))}.hover\:bg-paper:hover{--tw-bg-opacity: 1;background-color:rgb(var(--learning-paper-rgb) / var(--tw-bg-opacity, 1))}.hover\:bg-paper-muted:hover{--tw-bg-opacity: 1;background-color:rgb(var(--learning-paper-muted-rgb) / var(--tw-bg-opacity, 1))}.hover\:bg-paper\/80:hover{background-color:rgb(var(--learning-paper-rgb) / .8)}.hover\:bg-red-50:hover{--tw-bg-opacity: 1;background-color:rgb(254 242 242 / var(--tw-bg-opacity, 1))}.hover\:bg-red-700:hover{--tw-bg-opacity: 1;background-color:rgb(185 28 28 / var(--tw-bg-opacity, 1))}.hover\:bg-slate-50:hover{--tw-bg-opacity: 1;background-color:rgb(248 250 252 / var(--tw-bg-opacity, 1))}.hover\:bg-wash:hover{--tw-bg-opacity: 1;background-color:rgb(var(--learning-wash-rgb) / var(--tw-bg-opacity, 1))}.hover\:bg-wash-strong:hover{--tw-bg-opacity: 1;background-color:rgb(var(--learning-wash-strong-rgb) / var(--tw-bg-opacity, 1))}.hover\:text-brand-strong:hover{--tw-text-opacity: 1;color:rgb(var(--langbox-brand-strong-rgb) / var(--tw-text-opacity, 1))}.hover\:text-ink:hover{--tw-text-opacity: 1;color:rgb(var(--learning-ink-rgb) / var(--tw-text-opacity, 1))}.hover\:text-red-600:hover{--tw-text-opacity: 1;color:rgb(220 38 38 / var(--tw-text-opacity, 1))}.hover\:text-slate-800:hover{--tw-text-opacity: 1;color:rgb(30 41 59 / var(--tw-text-opacity, 1))}.hover\:shadow-md:hover{--tw-shadow: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--tw-shadow-colored: 0 4px 6px -1px var(--tw-shadow-color), 0 2px 4px -2px var(--tw-shadow-color);box-shadow:var(--tw-ring-offset-shadow, 0 0 #0000),var(--tw-ring-shadow, 0 0 #0000),var(--tw-shadow)}.hover\:ring-line-strong:hover{--tw-ring-opacity: 1;--tw-ring-color: rgb(var(--learning-line-strong-rgb) / var(--tw-ring-opacity, 1))}.focus\:border-gold:focus{--tw-border-opacity: 1;border-color:rgb(var(--learning-gold-rgb) / var(--tw-border-opacity, 1))}.focus\:bg-paper:focus{--tw-bg-opacity: 1;background-color:rgb(var(--learning-paper-rgb) / var(--tw-bg-opacity, 1))}.focus\:outline-none:focus{outline:2px solid transparent;outline-offset:2px}.focus\:ring-2:focus{--tw-ring-offset-shadow: var(--tw-ring-inset) 0 0 0 var(--tw-ring-offset-width) var(--tw-ring-offset-color);--tw-ring-shadow: var(--tw-ring-inset) 0 0 0 calc(2px + var(--tw-ring-offset-width)) var(--tw-ring-color);box-shadow:var(--tw-ring-offset-shadow),var(--tw-ring-shadow),var(--tw-shadow, 0 0 #0000)}.focus\:ring-gold\/10:focus{--tw-ring-color: rgb(var(--learning-gold-rgb) / .1)}.focus-visible\:ring-2:focus-visible{--tw-ring-offset-shadow: var(--tw-ring-inset) 0 0 0 var(--tw-ring-offset-width) var(--tw-ring-offset-color);--tw-ring-shadow: var(--tw-ring-inset) 0 0 0 calc(2px + var(--tw-ring-offset-width)) var(--tw-ring-color);box-shadow:var(--tw-ring-offset-shadow),var(--tw-ring-shadow),var(--tw-shadow, 0 0 #0000)}.focus-visible\:ring-gold:focus-visible{--tw-ring-opacity: 1;--tw-ring-color: rgb(var(--learning-gold-rgb) / var(--tw-ring-opacity, 1))}.focus-visible\:ring-line:focus-visible{--tw-ring-opacity: 1;--tw-ring-color: rgb(var(--learning-line-rgb) / var(--tw-ring-opacity, 1))}.focus-visible\:ring-line-strong:focus-visible{--tw-ring-opacity: 1;--tw-ring-color: rgb(var(--learning-line-strong-rgb) / var(--tw-ring-opacity, 1))}.focus-visible\:ring-red-200:focus-visible{--tw-ring-opacity: 1;--tw-ring-color: rgb(254 202 202 / var(--tw-ring-opacity, 1))}.focus-visible\:ring-red-300:focus-visible{--tw-ring-opacity: 1;--tw-ring-color: rgb(252 165 165 / var(--tw-ring-opacity, 1))}.focus-visible\:ring-offset-2:focus-visible{--tw-ring-offset-width: 2px}.disabled\:cursor-not-allowed:disabled{cursor:not-allowed}.disabled\:bg-line:disabled{--tw-bg-opacity: 1;background-color:rgb(var(--learning-line-rgb) / var(--tw-bg-opacity, 1))}.disabled\:bg-red-300:disabled{--tw-bg-opacity: 1;background-color:rgb(252 165 165 / var(--tw-bg-opacity, 1))}.disabled\:text-muted:disabled{--tw-text-opacity: 1;color:rgb(var(--learning-muted-rgb) / var(--tw-text-opacity, 1))}.disabled\:opacity-50:disabled{opacity:.5}.disabled\:shadow-none:disabled{--tw-shadow: 0 0 #0000;--tw-shadow-colored: 0 0 #0000;box-shadow:var(--tw-ring-offset-shadow, 0 0 #0000),var(--tw-ring-shadow, 0 0 #0000),var(--tw-shadow)}.group:focus-within .group-focus-within\:translate-y-0{--tw-translate-y: 0px;transform:translate(var(--tw-translate-x),var(--tw-translate-y)) rotate(var(--tw-rotate)) skew(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))}.group:focus-within .group-focus-within\:opacity-100{opacity:1}.group:hover .group-hover\:-translate-y-1{--tw-translate-y: -.25rem;transform:translate(var(--tw-translate-x),var(--tw-translate-y)) rotate(var(--tw-rotate)) skew(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))}.group:hover .group-hover\:translate-y-0{--tw-translate-y: 0px;transform:translate(var(--tw-translate-x),var(--tw-translate-y)) rotate(var(--tw-rotate)) skew(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))}.group:hover .group-hover\:border-muted{--tw-border-opacity: 1;border-color:rgb(var(--learning-muted-rgb) / var(--tw-border-opacity, 1))}.group:hover .group-hover\:opacity-100{opacity:1}.group:hover .group-hover\:shadow-\[0_22px_38px_-16px_rgb\(15_23_42\/0\.75\)\]{--tw-shadow: 0 22px 38px -16px rgb(15 23 42/.75);--tw-shadow-colored: 0 22px 38px -16px var(--tw-shadow-color);box-shadow:var(--tw-ring-offset-shadow, 0 0 #0000),var(--tw-ring-shadow, 0 0 #0000),var(--tw-shadow)}.data-\[state\=checked\]\:translate-x-\[1\.375rem\][data-state=checked]{--tw-translate-x: 1.375rem;transform:translate(var(--tw-translate-x),var(--tw-translate-y)) rotate(var(--tw-rotate)) skew(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))}.data-\[disabled\]\:cursor-not-allowed[data-disabled]{cursor:not-allowed}.data-\[highlighted\]\:bg-wash[data-highlighted]{--tw-bg-opacity: 1;background-color:rgb(var(--learning-wash-rgb) / var(--tw-bg-opacity, 1))}.data-\[state\=checked\]\:bg-brand[data-state=checked]{--tw-bg-opacity: 1;background-color:rgb(var(--langbox-brand-rgb) / var(--tw-bg-opacity, 1))}.data-\[disabled\]\:text-subtle[data-disabled],.data-\[placeholder\]\:text-subtle[data-placeholder]{--tw-text-opacity: 1;color:rgb(var(--learning-subtle-rgb) / var(--tw-text-opacity, 1))}.data-\[disabled\]\:opacity-50[data-disabled]{opacity:.5}@media(min-width:640px){.sm\:w-32{width:8rem}.sm\:w-40{width:10rem}.sm\:w-48{width:12rem}.sm\:w-\[22\.5rem\]{width:22.5rem}.sm\:grid-cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}.sm\:flex-row{flex-direction:row}.sm\:items-start{align-items:flex-start}.sm\:items-end{align-items:flex-end}.sm\:items-center{align-items:center}.sm\:justify-between{justify-content:space-between}}@media(min-width:768px){.md\:sticky{position:sticky}.md\:hidden{display:none}.md\:w-\[15\.5rem\]{width:15.5rem}.md\:translate-x-0{--tw-translate-x: 0px;transform:translate(var(--tw-translate-x),var(--tw-translate-y)) rotate(var(--tw-rotate)) skew(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))}.md\:flex-row{flex-direction:row}.md\:px-9{padding-left:2.25rem;padding-right:2.25rem}.md\:pb-16{padding-bottom:4rem}.md\:pt-\[2\.625rem\]{padding-top:2.625rem}}@media(min-width:1024px){.lg\:grid-cols-\[15rem_minmax\(0\,1fr\)\]{grid-template-columns:15rem minmax(0,1fr)}}@media(min-width:1280px){.xl\:grid-cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}}.workspace-navigation{display:flex;align-items:center;gap:6px;margin-left:10px;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}.workspace-navigation a{padding:10px 14px;text-decoration:none;color:#657080;font-size:13px;font-weight:700;border-radius:6px}.workspace-navigation a[aria-current=page]{color:#12305a;background:#edf1f6}.workspace-navigation a:hover{background:#f2f3f5}.workspace-navigation a:focus-visible,.reading-shell a:focus-visible,.reading-shell button:focus-visible{outline:2px solid #12305a;outline-offset:3px}.reading-shell{min-height:100vh;background:#f7f6f2;color:#172b4d}.reading-header{height:68px;border-bottom:1px solid #e5e2da;background:#fff;box-shadow:0 2px 12px #1c273a09}.reading-header-inner{width:min(1180px,calc(100% - 64px));height:100%;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:24px}.reading-brand{display:flex;align-items:center;gap:9px}.reading-brand svg{width:30px;height:30px;color:#12305a}.reading-brand strong{color:#102b51;font:700 22px Georgia,Times New Roman,serif;letter-spacing:-.025em}.reading-library{max-width:1180px;margin:36px auto;padding:0 32px}.reading-library-heading{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-bottom:28px}.reading-library h1{font-size:26px;margin:0 0 10px}.reading-library-heading p,.reading-empty p{color:#768092;font-size:14px;line-height:1.6;margin:0}.reading-upload-actions{display:flex;gap:10px;flex-shrink:0}.reading-upload-actions a{border:1px solid #d9d5cc;background:#fff;color:#12305a;text-decoration:none;padding:11px 17px;border-radius:8px;font-size:13px;font-weight:600}.reading-upload-actions a:first-child{background:#12305a;color:#fff;border-color:#12305a}.reading-library-tools{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:22px}.reading-library-tool-actions{display:flex;align-items:center;gap:10px;margin-left:auto}.reading-library-tools nav{display:flex;gap:8px}.reading-library-tools button{border:0;background:transparent;border-radius:6px;padding:9px 17px;color:#647084;cursor:pointer;font:600 14px inherit}.reading-library-tools button[aria-pressed=true]{color:#12305a;background:#e8edf3}.reading-library-tools input{font:inherit;font-size:14px;padding:11px 14px;border:1px solid #dedbd4;border-radius:8px;background:#fff;max-width:220px;color:#172b4d}.reading-files{padding:0;margin:0;list-style:none;background:#fff;border:1px solid #e0ddd6;border-radius:14px;overflow:hidden}.reading-files li+li{border-top:1px solid #ece9e3}.reading-files a{display:flex;align-items:center;gap:20px;padding:24px;text-decoration:none;color:inherit}.reading-files a:hover{background:#faf9f6}.reading-file-icon{display:grid;place-items:center;width:48px;height:60px;border-radius:6px;background:#eef1f6;color:#12305a;font-size:11px;font-weight:700;flex-shrink:0;border:1px solid #dce3ec}.reading-file-icon.epub{background:#f7f1e5;color:#a07833;border-color:#e7dcc5}.reading-file-details{flex:1;min-width:0}.reading-file-details h2{font-size:16px;font-weight:600;margin:0 0 9px;overflow-wrap:anywhere}.reading-file-details p{color:#7b8595;font-size:12px;margin:0}.reading-file-action{font-size:13px;font-weight:600;color:#12305a;white-space:nowrap}.reading-empty{text-align:center;padding:70px 24px;background:#fff;border:1px solid #e0ddd6;border-radius:14px}.reading-empty h2{font-size:18px}.reading-error{padding:16px;background:#fff0e9;color:#9a4630;margin-bottom:20px;border-radius:8px}.reading-error button{background:transparent;border:0;text-decoration:underline;color:inherit;cursor:pointer}.reading-back{display:block;margin:20px 32px;color:#52647b;text-decoration:none;font-size:14px}.reading-shell .ebook-workspace{background:#f7f6f2;color:#172b4d;min-height:calc(100vh - 120px)}.reading-shell .ebook-header{background:transparent;border:0}.reading-shell .ebook-header>div{display:none}.reading-shell .ebook-header{justify-content:flex-end;height:42px}.reading-shell .ebook-primary,.reading-shell .ebook-upload{background:#12305a}.reading-shell .ebook-layout aside button.active,.reading-shell .ebook-mode button.active{background:#edf1f6;color:#12305a}@media(max-width:640px){.reading-header-inner{width:calc(100% - 32px);gap:10px}.reading-brand strong{font-size:19px}.workspace-navigation{margin-left:0;gap:0}.workspace-navigation a{padding:10px}.reading-library{margin:24px auto;padding:0 16px}.reading-library-heading{align-items:flex-start;flex-direction:column;gap:16px}.reading-library-tools{flex-wrap:wrap;gap:12px}.reading-library-tool-actions{width:100%;min-width:0}.reading-library-tool-actions input{box-sizing:border-box;flex:1;min-width:0;max-width:none}.reading-files a{padding:18px 14px;gap:12px;flex-wrap:wrap}.reading-file-details{min-width:160px}.reading-file-action{margin-left:60px}}
