.library-actions{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px}.library-actions button{font-size:13px}.library-filters{display:flex;align-items:center;gap:12px;margin-bottom:22px}.library-filters input{margin:0;max-width:380px}.library-filters select{margin:0;max-width:240px}.file-icon{width:42px;height:42px;border-radius:10px;display:grid;place-items:center;background:#edf2e5;font-size:20px;font-weight:700;flex-shrink:0}.file-row{display:flex;align-items:center;gap:14px;width:100%}.file-info{flex:1;min-width:0}.file-info h3{overflow-wrap:anywhere}.file-id{font:11px/1.4 monospace;color:#859181;overflow-wrap:anywhere}.file-card{min-width:0}.file-card .actions{margin-top:15px}.file-card .actions button{padding:8px 12px;font-size:12px}.attachment-row{padding:12px 0;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:15px}.attachment-row small{display:block}.checkbox-label{display:flex;gap:10px;align-items:center;margin:8px 0;font-weight:400}.checkbox-label input{width:auto;margin:0}.class-choices{display:grid;grid-template-columns:1fr 1fr;gap:4px}.attachment-choice{padding:12px;background:#f4f6ef;border-radius:8px;margin:10px 0}.attachment-choice select{font-size:12px;padding:6px}.post-meta{font-size:12px;color:var(--muted)}.work-item{border:1px solid var(--line);border-radius:10px;padding:16px;margin:12px 0;background:white}.work-item .actions{margin-top:8px}.work-file{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:9px 0}.work-file button{font-size:12px}.work-item p{font-size:13px;margin:5px 0;white-space:pre-wrap}.office-open #shell>aside,.office-open header,.office-open footer{display:none!important}.office-open .workspace{margin:0}.office-open main{padding:0;max-width:none}.office-top{height:65px;padding:10px 20px;background:white;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:15px}.office-top strong{flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.office-top button,.office-top a{font-size:12px}.office-layout{display:flex;height:calc(100vh - 65px);min-height:500px}.office-surface{flex:1;min-width:0;height:100%}#office-editor{height:100%}.file-panel{position:static;width:290px;background:white;border-left:1px solid var(--line);padding:20px;overflow:auto}.file-panel h3{font-size:16px}.file-panel textarea{min-height:90px}.file-panel button{font-size:12px}.file-panel .file-id{display:block;margin:12px 0}.comment{padding:12px 0;border-bottom:1px solid var(--line);font-size:13px;overflow-wrap:anywhere}.comment p{white-space:pre-wrap;margin:4px 0;color:var(--ink)}.comment small{font-size:10px}.file-preview{display:grid;place-items:center;padding:35px;height:100%;overflow:auto}.file-preview img{max-width:100%;max-height:80vh}.file-preview iframe{height:100%;width:100%;border:0}.copy-mode{background:#eef3df}.student-work-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:18px}.notice{background:#edf2e3;border:1px solid #d7e3c8;border-radius:8px;padding:12px;font-size:12px;color:#42643c}.busy{opacity:.7;pointer-events:none}@media(max-width:800px){.office-top{gap:6px;padding:8px}.office-top button{padding:8px}.office-top strong{font-size:12px}.file-panel{position:absolute;right:0;top:65px;bottom:0;z-index:3;box-shadow:-5px 0 25px #0002}.library-filters{flex-wrap:wrap}.class-choices{grid-template-columns:1fr}.library-filters input,.library-filters select{max-width:none}.student-work-grid{grid-template-columns:1fr}}