.library-connect-card{display:flex;justify-content:space-between;gap:20px;align-items:center;padding:22px;border:1px solid var(--line);border-radius:14px;background:#fff9;margin-bottom:24px}.library-connect-card h2{margin:7px 0}.library-connect-card p{font-size:13px;line-height:1.7;max-width:640px;color:var(--muted)}
.library-reading-order{margin:22px 0;font-size:14px;line-height:1.9}.library-reading-order ol{padding-left:20px}.library-reading-order h3{font-size:15px}.library-group{margin:20px 0;border-top:1px solid var(--line);padding-top:16px}.library-group>summary{font-size:15px;font-weight:550;cursor:pointer}.library-group>summary span{font-size:12px;color:var(--muted);font-weight:400;margin-left:8px}
.library-files{display:grid;gap:10px;margin-top:14px}.library-file{padding:16px 18px;border:1px solid var(--line);border-radius:12px;background:#fff8;display:flex;align-items:center;justify-content:space-between;gap:20px;min-width:0}.library-file>div{min-width:0}.library-file h3{font-size:14px;font-weight:550;line-height:1.65;margin:5px 0;overflow-wrap:anywhere}.library-file .button{flex-shrink:0}.library-kind{color:var(--accent);font-size:11px}.library-path{font-size:11px;color:var(--muted);overflow-wrap:anywhere;margin:0;line-height:1.65}.library-file .hint{font-size:12px;line-height:1.7;margin:8px 0 0}
.library-web{margin:30px 0}.library-web h2 small{font-size:12px;color:var(--muted);font-weight:400}.library-link{border-bottom:1px solid var(--line);padding:17px 0}.library-link h3{font-size:15px;line-height:1.7;margin:0}.library-link a{color:var(--accent);overflow-wrap:anywhere}.library-link p{font-size:13px;line-height:1.8;color:var(--muted);margin:8px 0}.library-count{font-size:12px;color:var(--muted);margin-top:20px}
.library-project-routes{margin:24px 0 32px}.library-project-routes>header{max-width:700px;margin-bottom:17px}.library-project-routes>header h2{font-size:21px;margin:6px 0 8px}.library-project-routes>header p{font-size:13px;line-height:1.75;color:var(--muted);margin:0}.library-project-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:14px;align-items:stretch}.library-project{padding:22px;border:1px solid color-mix(in srgb,var(--accent) 30%,var(--line));border-radius:14px;background:color-mix(in srgb,var(--accent) 5%,#fff);display:flex;flex-direction:column;min-width:0}.library-project-tag{font-size:10px;font-weight:700;letter-spacing:1.2px;color:var(--accent)}.library-project h3{font-size:18px;line-height:1.5;margin:8px 0 11px}.library-project-meta{display:flex;flex-wrap:wrap;gap:7px;margin:0 0 15px}.library-project-meta span{padding:4px 8px;border:1px solid color-mix(in srgb,var(--accent) 24%,var(--line));border-radius:999px;background:#fff9;font-size:11px;color:var(--muted)}.library-project dl{display:grid;gap:10px;margin:0 0 17px}.library-project dl div{display:grid;grid-template-columns:76px 1fr;gap:12px}.library-project dt{font-size:12px;font-weight:650;color:var(--ink)}.library-project dd{font-size:13px;line-height:1.75;color:var(--muted);margin:0}.library-project .room-actions{margin-top:auto}.library-project .room-actions a{font-size:12px;color:var(--accent)}.library-projects-compact{margin:22px 0;border:1px solid var(--line);border-radius:12px;background:#fff8}.library-projects-compact>summary{padding:14px 16px;cursor:pointer;font-size:14px;font-weight:600}.library-projects-compact>summary span{font-size:11px;font-weight:400;color:var(--muted);margin-left:6px}.library-projects-compact>div{padding:0 16px}.library-project-compact{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:14px 0;border-top:1px solid var(--line)}.library-project-compact>div:first-child{min-width:0}.library-project-compact h3{font-size:14px;line-height:1.55;margin:4px 0}.library-project-compact p{font-size:11px;line-height:1.6;color:var(--muted);margin:0}.library-project-compact .room-actions{flex-shrink:0}.library-project-compact .room-actions a{font-size:12px;color:var(--accent)}.practice-prep{margin-top:34px}
.library-project-first30{margin:0 0 18px;padding:14px;border:1px solid color-mix(in srgb,var(--accent) 20%,var(--line));border-radius:10px;background:#fff9}.library-project-first30>strong{display:block;margin-bottom:8px;font-size:12px}.library-project-first30 ol{display:grid;gap:6px;margin:0;padding-left:19px}.library-project-first30 li{font-size:11px;line-height:1.6;color:var(--muted)}.library-project-first30 li span{display:inline-block;min-width:68px;color:var(--accent);font-weight:650}.library-project-compact .library-project-first-step{margin-top:6px;color:var(--ink);max-width:640px}.library-project-first-step strong{color:var(--accent);font-weight:650}
#course-library-dialog{width:min(1080px,96%);height:94%;max-height:94%;max-width:none;border:1px solid var(--line);border-radius:18px;background:var(--bg);color:var(--ink);padding:0;overflow:hidden}#course-library-dialog::backdrop{background:#14233177;backdrop-filter:blur(4px)}.library-hub-shell{height:100%;display:flex;flex-direction:column}.library-hub-header{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:24px;border-bottom:1px solid var(--line)}.library-hub-header h2{font-size:21px;margin:6px 0 0}.library-hub-tools{display:flex;flex-wrap:wrap;align-items:end;gap:12px;padding:18px 24px;border-bottom:1px solid var(--line)}.library-hub-tools>label{display:grid;gap:6px;font-size:12px;color:var(--muted);flex:1;min-width:150px}.library-hub-tools input,.library-hub-tools select{padding:9px 12px;font:inherit;font-size:13px;border:1px solid var(--line);border-radius:8px;background:#fff;min-width:0;max-width:100%}.library-hub-tools>p{width:100%;margin:2px 0 0}.library-hub-body{overflow:auto;padding:4px 24px 28px;min-height:0}.library-directory-fallback{position:relative;overflow:hidden;display:inline-flex;cursor:pointer;font-size:12px}.library-directory-fallback input{position:absolute;inset:0;opacity:0;cursor:pointer}.library-directory-fallback:focus-within{outline:2px solid var(--accent)}
.library-document{padding:24px;line-height:1.85;font-size:14px;overflow-wrap:anywhere}.library-document h1{font-size:24px}.library-document h2{font-size:20px}.library-document h3{font-size:17px}.library-document a{color:var(--accent);text-decoration:underline;text-underline-offset:3px}.library-document pre,.library-code{padding:16px;overflow:auto;background:#f0f3f7;border:1px solid var(--line);border-radius:9px;white-space:pre-wrap;font:12px/1.8 monospace}.library-cell{border-bottom:1px solid var(--line);padding:14px 0}.library-table{border-collapse:collapse;width:100%;font-size:12px}.library-table td,.library-table th{padding:8px;border:1px solid var(--line);white-space:pre-wrap;overflow-wrap:anywhere}.library-document table{border-collapse:collapse;font-size:12px;max-width:100%}.library-document table td,.library-document table th{border:1px solid var(--line);padding:7px}.library-document img{max-width:100%}
.library-notebook{max-width:980px;margin:0 auto}.library-notebook>.library-document-note{margin:0 0 18px;padding:10px 13px;border:1px solid var(--line);border-radius:9px;background:#fff9}.library-notebook .library-cell{display:grid;grid-template-columns:76px minmax(0,1fr);gap:0 12px;padding:12px 0 18px}.library-notebook-prompt{padding-top:9px;color:var(--accent);font:600 11px/1.5 ui-monospace,SFMono-Regular,Menlo,monospace;text-align:right;white-space:nowrap}.library-notebook-cell-content{min-width:0}.library-notebook-cell-content>.library-code{margin:0;background:#f7f8fa;white-space:pre;tab-size:4}.library-cell-markdown .library-notebook-cell-content>:first-child{margin-top:0}.library-cell-markdown .library-notebook-cell-content>:last-child{margin-bottom:0}.library-notebook-output{display:grid;grid-column:1/-1;grid-template-columns:76px minmax(0,1fr);gap:0 12px;margin-top:10px}.library-notebook-output-content{min-width:0;overflow:auto}.library-notebook-output-text{margin:0!important;padding:10px 12px!important;border:0!important;background:transparent!important;white-space:pre-wrap!important}.library-notebook-output.is-error .library-notebook-output-content{border-left:3px solid #bb4d4d;background:#fff3f3}.library-notebook-image{display:block;max-width:100%;height:auto;margin:8px 0;border-radius:6px}.library-notebook-output .library-notebook-image{margin:0 auto}
.reader-directory-tools{display:flex;gap:14px;flex-wrap:wrap;align-items:center;margin:10px 0 0}.reader-directory-tools .text-button{font-size:12px}.reader-directory-status{font-size:11px;line-height:1.7;color:var(--muted);margin:8px 0}.reader-file-update{font-size:12px;margin:8px 0;line-height:1.7}.reader-file-update button{display:block;margin-top:7px}.library-unconnected{padding:25px}.library-unconnected p{font-size:14px;line-height:1.85}.library-unconnected h3{font-size:20px;line-height:1.6;overflow-wrap:anywhere}
.study-pdf-reader{height:100%;min-height:350px;display:flex;flex-direction:column}.study-pdf-toolbar{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:10px;background:#f6f7f9;border-bottom:1px solid var(--line);font-size:12px}.study-pdf-toolbar button,.study-pdf-toolbar input,.study-pdf-toolbar select{font:inherit;border:1px solid var(--line);background:#fff;border-radius:6px;padding:6px 8px;color:var(--ink)}.study-pdf-canvas-wrap{overflow:auto;flex:1;min-height:150px;background:#e5e9ee}.study-pdf-status{font-size:12px;line-height:1.6;padding:7px 12px;color:var(--muted)}
.study-pptx-reader{display:flex;flex-direction:column;min-height:430px;margin:10px 0 20px;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#dfe4e9}.study-pptx-toolbar{display:flex;align-items:center;justify-content:center;gap:8px;padding:10px;background:#f6f7f9;border-bottom:1px solid var(--line);font-size:12px;position:sticky;top:0;z-index:3}.study-pptx-toolbar button,.study-pptx-toolbar input,.study-pptx-toolbar select{min-height:34px;padding:6px 9px;border:1px solid var(--line);border-radius:7px;background:#fff;color:var(--ink);font:inherit}.study-pptx-toolbar button:not(:disabled){cursor:pointer}.study-pptx-toolbar button:disabled,.study-pptx-toolbar input:disabled,.study-pptx-toolbar select:disabled{opacity:.45}.study-pptx-toolbar input{width:58px;text-align:center}.study-pptx-count{min-width:54px;color:var(--muted)}.study-pptx-stage{width:100%;min-height:360px;padding:18px;overflow:auto;box-sizing:border-box}.study-pptx-frame{display:block;max-width:none;border:0;margin:0 auto;background:#fff;box-shadow:0 12px 30px #14233125}.study-pptx-outline{padding:9px 13px;background:#f6f7f9;border-top:1px solid var(--line)}.study-pptx-outline summary{cursor:pointer;font-size:12px;color:var(--accent)}.study-pptx-outline pre{max-height:180px;margin:9px 0 0;padding:10px;background:#fff;white-space:pre-wrap;font-size:11px;line-height:1.65}.study-pptx-note{margin:0;padding:9px 13px;background:#f6f7f9;border-top:1px solid var(--line);color:var(--muted);font-size:11px;line-height:1.65}.study-pptx-reader:fullscreen{width:100vw;height:100vh;max-width:none;border:0;border-radius:0;background:#111}.study-pptx-reader:fullscreen .study-pptx-stage{flex:1;min-height:0}.study-pptx-reader:fullscreen .study-pptx-outline,.study-pptx-reader:fullscreen .study-pptx-note{display:none}
.study-pdf-reader{grid-template-rows:auto auto auto auto minmax(140px,1fr) auto auto;gap:4px!important}.study-pdf-title{margin:0;padding:10px 12px 4px;font-size:13px}.study-pdf-status{margin:0;padding:4px 12px}.study-pdf-bookmark-status{font-size:11px;margin:0;padding:0 12px 4px;color:var(--muted)}.study-pdf-text,.study-pdf-fallback{font-size:12px;padding:3px 12px;margin:0}.library-table-wrap{overflow-x:auto;max-width:100%}.library-local-link{color:var(--accent);text-decoration:underline;text-align:left;font:inherit;cursor:pointer}.library-document-status,.library-document-note{font-size:12px;color:var(--muted);line-height:1.8}
.study-pdf-open-actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap;width:100%;padding-bottom:8px;margin-bottom:2px;border-bottom:1px solid var(--line)}
.study-pdf-open,.study-pdf-download{display:inline-flex;align-items:center;justify-content:center;min-height:36px;padding:8px 12px;border-radius:8px;text-decoration:none;font-size:12px;font-weight:500;line-height:1.4}
.study-pdf-open{background:var(--ink);color:#fff}.study-pdf-download{border:1px solid var(--line);background:#fff;color:var(--accent)}
.study-annotation-tools{display:flex;align-items:center;gap:6px;flex-wrap:wrap;margin-left:auto}.study-annotation-tools button{font-size:11px;padding:5px 8px;border:1px solid var(--line);border-radius:6px;background:#fff}.study-annotation-tools button.active{background:var(--accent);color:#fff}.study-annotation-hint{font-size:11px;color:var(--muted)}.study-annotation-canvas{z-index:4;touch-action:none}
.study-pdf-open:hover{color:#fff}
.study-pdf-open:focus-visible,.study-pdf-download:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.study-pdf-open-note{margin:0;color:var(--muted);font-size:11px;line-height:1.6;flex-basis:100%}
#learning-room.room-reading-focus .study-pdf-canvas-wrap{max-height:none!important}
#learning-room.room-reading-focus .study-pdf-title{display:none}
#learning-room.room-reading-focus .study-pdf-reader{grid-template-rows:auto auto auto minmax(140px,1fr) auto auto}
#learning-room.room-reading-focus .study-pdf-open-actions{width:auto;padding:0;margin:0 8px 0 0;border:0}
@media(max-width:760px){.library-connect-card{align-items:flex-start;flex-direction:column;padding:18px}.library-file{padding:14px;gap:12px;align-items:flex-start;flex-direction:column}.library-file .button{padding:9px 14px;font-size:12px}.library-project-grid{grid-template-columns:1fr}.library-project{padding:17px}.library-project dl div{grid-template-columns:1fr;gap:3px}.library-project .room-actions{align-items:flex-start;flex-direction:column}.library-project-compact{align-items:flex-start;flex-direction:column;gap:10px}.library-project-compact .room-actions{width:100%}#course-library-dialog{width:100%;height:100%;max-height:100%;border:0;border-radius:0;margin:0;inset:0}.library-hub-header{padding:16px}.library-hub-header h2{font-size:17px}.library-hub-tools{padding:14px 16px;gap:10px}.library-hub-body{padding:2px 16px 20px}.library-hub-tools .room-actions{width:100%;gap:10px}.library-hub-tools .button{font-size:12px;padding:9px 12px}.library-document{padding:18px}.study-pptx-reader{min-height:320px}.study-pptx-toolbar{justify-content:flex-start;overflow-x:auto}.study-pptx-stage{min-height:260px;padding:8px}.reader-scope{font-size:11px;margin:8px 0}.reader-directory-status{display:none}}
@media(max-width:760px){.library-notebook .library-cell,.library-notebook-output{grid-template-columns:54px minmax(0,1fr);gap:0 8px}.library-notebook-prompt{font-size:9px}}