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var(--border);border-radius:var(--r-sm);background:var(--surface);color:var(--text-2);cursor:pointer}.fm-head-row{display:flex;align-items:center;gap:var(--s-3);flex:none;padding:9px var(--s-4);border-bottom:1px solid var(--border);background:var(--surface-2)}.fm-head-ic{flex:0 0 32px}.fm-head-sp{flex:0 0 58px}.fm-sort{flex:1;min-width:0;padding:0;border:0;background:none;cursor:pointer;text-align:left;font:inherit;font-size:11px;font-weight:600;letter-spacing:.05em;text-transform:uppercase;color:var(--text-3)}.fm-sort:hover{color:var(--text-2)}.fm-sort.on{color:var(--accent)}.fm-sort.col-size,.fm-item-cell.col-size{flex:0 0 70px}.fm-sort.col-date,.fm-item-cell.col-date{flex:0 0 84px}.fm-rows{flex:1;min-height:0;display:flex;flex-direction:column;overflow-y:auto}.fm-rows .fm-empty{flex:1;display:grid;place-content:center}.fm-item{display:flex;align-items:center;gap:var(--s-3);padding:11px var(--s-4);cursor:pointer;transition:background var(--dur-fast) 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58px;display:flex;gap:2px;justify-content:flex-end;opacity:0;transition:opacity var(--dur) var(--ease)}.fm-item:hover .fm-item-acts,.fm-item:focus-within .fm-item-acts{opacity:1}@media (hover: none){.fm-item-acts{opacity:1}}.fm-add-row{display:flex;align-items:center;flex-wrap:wrap;gap:var(--s-2);row-gap:6px;flex:none;padding:10px 14px;border-top:1px dashed var(--border-2);background:var(--surface-2)}.fm-add{display:inline-flex;align-items:center;gap:7px;flex:none;white-space:nowrap;padding:7px 12px;border:1px solid transparent;border-radius:9px;background:none;cursor:pointer;font:inherit;font-size:12.5px;font-weight:550;color:var(--text-2);transition:background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease)}.fm-add:hover{background:var(--surface);border-color:var(--border);color:var(--accent)}.fm-add-hint{display:inline-flex;align-items:center;gap:6px;flex:none;margin-left:auto;font-size:11.5px;color:var(--text-3);white-space:nowrap}@media (max-width: 1240px){.fm-add-hint{display:none}}@media (max-width: 1180px){.fm-shell{grid-template-columns:200px minmax(0,1fr);gap:var(--s-4)}.fm-sort.col-size,.fm-item-cell.col-size{display:none}}@media (max-width: 1020px){.fm-sort.col-date,.fm-item-cell.col-date{display:none}}@media (max-width: 900px){.fm-shell{grid-template-columns:1fr;height:auto}.fm-side{display:none}.fm-side.open{display:flex}.fm-tree-btn{display:grid}.fm-list{min-height:60dvh}.fm-rows{overflow:visible}.fm-item-acts{flex:none}}@media (max-width: 720px){.fm-create-menu{min-width:220px}}.fm-item-badge{flex:none;margin-left:var(--s-2);padding:2px 8px;border-radius:999px;font-size:10.5px;font-weight:600;background:var(--surface-2);color:var(--text-3)}.fm-item-badge.task{background:var(--accent-soft);color:var(--accent)}.fm-expand{display:inline-flex;align-items:center;gap:5px;flex:none;margin-left:6px;border:1px solid var(--border);border-radius:999px;padding:2px 8px;background:var(--surface);color:var(--text-2);font:inherit;font-size:11.5px;font-weight:550;cursor:pointer;transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease)}.fm-expand:hover{border-color:var(--accent);color:var(--accent)}.fm-expand svg:last-child{transition:transform var(--dur) var(--ease)}.fm-expand.open svg:last-child{transform:rotate(180deg)}.fm-task-files{display:flex;flex-direction:column;gap:2px;padding:4px 18px 12px 60px;background:var(--surface-2)}.fm-task-file{display:flex;align-items:center;gap:var(--s-2);padding:5px 0;font-size:12.5px;color:var(--text-2)}.fm-task-file-name{font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.fm-task-file-size{flex:none;font-size:11px;color:var(--text-3);font-variant-numeric:tabular-nums}.hw-desc{font-size:13.5px;color:var(--text-2);line-height:1.6}.hw-desc.md h3,.hw-desc.md h4,.hw-desc.md h5{color:var(--text);font-weight:600;margin:10px 0 4px}.hw-desc.md p{margin:6px 0}.hw-desc.md ul,.hw-desc.md ol{margin:6px 0;padding-left:20px}.hw-desc.md li{margin:2px 0}.hw-desc.md code{font-family:var(--font-mono);font-size:.9em;background:var(--surface-3);padding:1px 5px;border-radius:var(--r-xs)}.hw-desc.md a{color:var(--accent)}.hw-files-list{display:flex;flex-wrap:wrap;gap:6px}.hw-file{display:inline-flex;align-items:center;gap:6px;padding:5px 8px;border-radius:999px;background:var(--surface-3);color:var(--text-2);font-size:12px}.hw-file.missing{background:var(--danger-bg);color:var(--danger)}.hw-file-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:220px}.hw-file-size{color:var(--text-3);font-size:11px;font-variant-numeric:tabular-nums}.hw-file-x{border:0;background:none;cursor:pointer;color:var(--text-3);display:grid;place-items:center;padding:1px}.hw-file-x:hover{color:var(--danger)}.hw-attach-wrap{display:grid;gap:10px}.hw-attach-row{display:flex;gap:8px;flex-wrap:wrap}.hw-attach{display:inline-flex;align-items:center;gap:6px;border:1.5px dashed var(--border-2);border-radius:var(--r-sm);padding:8px 12px;background:none;cursor:pointer;font:inherit;font-size:12.5px;color:var(--text-2);transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease)}.hw-attach:hover{border-color:var(--accent);color:var(--accent)}.hw-file.openable{cursor:pointer}.hw-file.openable:hover{border-color:var(--accent);color:var(--accent)}.hw-attach-block{display:grid;gap:8px}.hw-attach-head{display:flex;align-items:center;justify-content:space-between;gap:var(--s-3)}.hw-attach-link{display:inline-flex;align-items:center;gap:5px;border:0;background:none;cursor:pointer;padding:0;font:inherit;font-size:12.5px;color:var(--accent)}.hw-attach-link:hover{text-decoration:underline}.hw-picker-list{display:flex;flex-direction:column;max-height:46vh;overflow-y:auto}.hw-pick-row{border-radius:var(--r-sm);cursor:pointer}.hw-pick-row:hover{background:var(--surface-2)}.hw-pick-row input[type=checkbox]{width:16px;height:16px;accent-color:var(--accent);flex:none}.day-hw{display:inline-flex;align-items:center;gap:4px;font-size:10.5px;font-weight:600;padding:2px 7px;border-radius:99px;background:var(--accent-soft);color:var(--accent)}.slot-hw{display:inline-flex;opacity:.7}.hw-card{margin-bottom:40px}.hw-head{display:flex;align-items:center;justify-content:space-between;gap:var(--s-3);padding:14px 20px;border-bottom:1px solid var(--border)}.hw-head-ic{display:grid;place-items:center;width:28px;height:28px;border-radius:var(--r-sm);background:var(--accent-soft);color:var(--accent)}.hw-head-title{font-size:13.5px;font-weight:600}.hw-empty{display:flex;flex-direction:column;align-items:center;gap:14px;padding:34px 20px;text-align:center}.hw-form{display:flex;flex-direction:column;gap:14px;padding:18px 20px}.hw-form-foot{display:flex;justify-content:flex-end;gap:10px}.hw-body{display:flex;flex-direction:column;gap:12px;padding:18px 20px}.hw-title{font-size:15px;font-weight:600}.hw-meta{display:flex;flex-wrap:wrap;gap:12px;font-size:12px;color:var(--text-3)}.hw-deadline{display:inline-flex;align-items:center;gap:5px}.hw-files{display:flex;flex-wrap:wrap;gap:6px}.hw-actions{display:flex;flex-wrap:wrap;gap:8px}.hw-err{padding:0 20px 16px;font-size:12.5px;color:var(--danger)}.hw-steps{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.hw-step{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:var(--text-3)}.hw-step.on{color:var(--text-2)}.hw-step.cur{color:var(--accent);font-weight:550}.hw-step-dot{display:grid;place-items:center;width:18px;height:18px;border-radius:50%;border:1.5px solid var(--border-2);font-size:10px;font-variant-numeric:tabular-nums}.hw-step.on .hw-step-dot{border-color:currentColor}.hw-step.cur .hw-step-dot{background:var(--accent);border-color:var(--accent);color:var(--surface)}.hw-step-line{flex:1 1 20px;min-width:16px;height:1.5px;background:var(--border-2)}.hw-step-line.on{background:var(--accent)}.hw-st-issued{color:var(--warning);background:var(--warning-bg)}.hw-st-submitted{color:var(--accent);background:var(--accent-soft)}.hw-st-checked{color:var(--success);background:var(--success-bg)}[data-theme=dark] .hw-st-issued,[data-theme=dark] .hw-st-submitted,[data-theme=dark] .hw-st-checked{background:color-mix(in oklch,currentColor 15%,transparent)}.hw-review{display:flex;flex-wrap:wrap;align-items:baseline;gap:10px;font-size:12.5px}.hw-grade{font-weight:600;color:var(--success)}.hw-comment{color:var(--text-2);font-size:12.5px}.hw-gradebox{border:1px solid var(--border);border-radius:var(--r-md);padding:14px 16px;background:var(--surface-2)}.hw-students{display:flex;flex-direction:column;gap:10px;border-top:1px solid var(--border);padding-top:12px}.hw-student{display:flex;flex-direction:column;gap:8px}.hw-student-top{display:flex;align-items:center;justify-content:space-between;gap:10px}.hw-student-name{font-size:13px;font-weight:500}.md-editor{border:1.5px solid var(--border-2);border-radius:var(--r-md);overflow:hidden;background:var(--surface)}.md-editor:focus-within{border-color:var(--accent)}.md-toolbar{display:flex;align-items:center;justify-content:space-between;gap:var(--s-3);padding:6px 8px;border-bottom:1px solid var(--border);background:var(--surface-2)}.md-tools{display:flex;gap:2px;flex-wrap:wrap}.md-tool{display:grid;place-items:center;width:28px;height:28px;border:0;border-radius:var(--r-xs);background:none;cursor:pointer;color:var(--text-2)}.md-tool:hover:not(:disabled){background:var(--surface-3);color:var(--text)}.md-tool:disabled{opacity:.4;cursor:default}.md-tabs{display:flex;gap:2px;flex:none}.md-tab{border:0;background:none;cursor:pointer;font:inherit;font-size:12px;color:var(--text-3);padding:4px 10px;border-radius:var(--r-xs)}.md-tab.active{background:var(--surface);color:var(--text);font-weight:550;box-shadow:var(--shadow-1)}.md-area{border:0;border-radius:0;resize:vertical}.md-area:focus{border:0;box-shadow:none}.md-preview{padding:12px 14px;min-height:90px}.md-preview.empty{color:var(--text-3);font-size:12.5px;font-style:italic}