*,:before,:after{box-sizing:border-box;margin:0;padding:0}:root{--bg:#f8f8f7;--surface:#fff;--border:#e0e0de;--border-strong:#c8c8c6;--text:#1a1a18;--text-muted:#7a7a78;--text-dim:#b0b0ae;--accent:#2563eb;--accent-soft:#dbeafe;--green:#16a34a;--green-soft:#dcfce7;--yellow-soft:#fef9c3;--gold:#b45309;--gold-soft:#fef3c7;--gold-border:#d97706;--detail-w:318px;--font:-apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--mono:"SF Mono", "Fira Code", ui-monospace, monospace;font-size:13px}html.dark{--bg:#1a1a1c;--surface:#242426;--border:#38383a;--border-strong:#505052;--text:#e8e8e6;--text-muted:#909090;--text-dim:#585858;--accent:#3b82f6;--accent-soft:#1e3a5f;--green:#4ade80;--green-soft:#14301f;--gold:#fbbf24;--gold-soft:#292007;--gold-border:#d97706}body{font-family:var(--font);background:var(--bg);color:var(--text);height:100vh;overflow:hidden}#app{height:100vh}#layout{grid-template-columns:var(--sidebar-w) 4px 1fr 4px var(--detail-w);height:100vh;display:grid}#sidebar{background:var(--surface);border-right:none;flex-direction:column;grid-column:1;display:flex;overflow:hidden}.resize-handle{background:var(--border);cursor:col-resize;z-index:10;grid-row:1;transition:background .15s}#resize-left{grid-column:2}#resize-right{grid-column:4}.resize-handle:hover,.resize-handle:active{background:var(--accent)}#main{background:var(--bg);grid-column:3;overflow:auto}#detail-panel{background:var(--surface);border-left:none;grid-column:5;overflow-y:auto}.sidebar-top{border-bottom:1px solid var(--border);flex-shrink:0;padding:10px 12px 8px}.sidebar-title-row{justify-content:space-between;align-items:center;margin-bottom:8px;display:flex}.app-title{letter-spacing:.08em;text-transform:uppercase;color:var(--text-muted);font-size:11px;font-weight:600}.project-controls{flex-wrap:wrap;gap:4px;margin-bottom:8px;display:flex}.project-controls button{border:1px solid 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4px;display:flex}.feedback-item:hover{background:var(--bg)}.fi-label{min-width:0;color:var(--text);font-size:11px;font-family:var(--font);resize:none;background:0 0;border:1px solid #0000;border-radius:2px;flex:1;width:100%;min-height:20px;padding:2px 5px;line-height:1.4;display:block;overflow:hidden}.fi-label:hover,.fi-label:focus{border-color:var(--border);background:var(--surface);outline:none}.feedback-item .pts-input,.feedback-item .fi-count-btn,.feedback-item .btn-icon{flex-shrink:0;margin-top:1px}.fi-dragging{opacity:.4}.fi-drag-over{outline:2px solid var(--accent);background:var(--accent-soft)}.fi-drag{cursor:grab;color:var(--text-dim);-webkit-user-select:none;user-select:none;flex-shrink:0;margin-top:2px;padding:0 2px;font-size:12px;line-height:1}.fi-drag:active{cursor:grabbing}.row-drop-target{outline:1px dashed var(--accent);background:var(--accent-soft)!important}.fi-count-btn{min-width:18px;height:18px;color:var(--text-dim);cursor:pointer;text-align:center;background:0 0;border:1px solid #0000;border-radius:9px;padding:0 3px;font-size:10px}.fi-count-btn.has-count{background:var(--accent-soft);border-color:var(--accent);color:var(--accent);font-weight:600}.fi-count-btn:hover{border-color:var(--border-strong)}.pts-input{border:1px solid var(--border);background:var(--bg);width:52px;color:var(--text);text-align:right;font-size:11px;font-family:var(--mono);border-radius:3px;flex-shrink:0;padding:2px 4px}.pts-input:focus{outline:1px solid var(--accent);border-color:var(--accent)}.pts-input:disabled{opacity:.4}.btn-icon{border:1px solid var(--border);width:20px;height:20px;color:var(--text-muted);cursor:pointer;background:0 0;border-radius:3px;flex-shrink:0;justify-content:center;align-items:center;padding:0;font-size:13px;line-height:1;display:inline-flex}.btn-icon:hover{background:var(--bg);border-color:var(--border-strong)}.btn-text{border:1px solid var(--border);color:var(--text-muted);cursor:pointer;background:0 0;border-radius:3px;padding:1px 6px;font-size:10px}.btn-text:hover{background:var(--bg)}.btn-perfect-action{border:1px solid var(--border-strong);color:var(--text-muted);cursor:pointer;white-space:nowrap;background:0 0;border-radius:3px;padding:3px 10px;font-size:11px;font-weight:500}.btn-perfect-action:hover{background:var(--bg);color:var(--text)}.btn-perfect-active{border:1px solid var(--gold-border);background:var(--gold-soft);color:var(--gold);cursor:pointer;white-space:nowrap;border-radius:3px;padding:3px 10px;font-size:11px;font-weight:500}.btn-perfect-active:hover{filter:brightness(.95)}.grade-perfect{color:var(--gold)}.perfect-note{color:var(--gold);margin-top:3px;font-size:10px}.btn-clear-action{border:1px solid var(--border-strong);color:var(--text-muted);cursor:pointer;white-space:nowrap;background:0 0;border-radius:3px;padding:3px 10px;font-size:11px;font-weight:500}.btn-clear-action:hover{background:var(--bg)}.empty-state{color:var(--text-muted);padding:20px 16px;font-size:12px;line-height:1.6}.ls-notice{background:var(--yellow-soft);border-top:1px solid var(--border);color:var(--text);align-items:center;gap:8px;padding:8px 12px;font-size:11px;display:flex}html.dark .ls-notice{color:#e8e8e6;background:#2a2000}.ls-notice button{border:1px solid var(--border-strong);background:var(--surface);cursor:pointer;color:var(--text);border-radius:3px;padding:2px 8px;font-size:11px}#table-container{padding:0}.sub-table{border-collapse:collapse;width:100%;font-size:12px}.sub-table thead th{background:var(--surface);border-bottom:1px solid var(--border-strong);text-align:left;letter-spacing:.04em;text-transform:uppercase;color:var(--text-muted);z-index:2;white-space:nowrap;padding:6px 10px;font-size:10px;font-weight:600;position:sticky;top:0}.col-name{width:160px}.col-email{width:170px}.col-grade{width:80px}.sortable{cursor:pointer;-webkit-user-select:none;user-select:none}.sortable:hover{color:var(--text)}.sarrow{margin-left:2px}.sarrow.dim{color:var(--text-dim)}.sub-table tbody tr{border-bottom:1px solid var(--border);cursor:pointer;transition:background 80ms}.sub-table tbody tr:hover{background:var(--bg)}.sub-table td{text-overflow:ellipsis;white-space:nowrap;padding:5px 10px;overflow:hidden}.cell-name{max-width:160px}.cell-email{color:var(--text-muted);max-width:170px;font-size:11px}.cell-grade{font-family:var(--mono);font-variant-numeric:tabular-nums;white-space:nowrap;font-size:12px}.grade-num{text-align:right;min-width:32px;display:inline-block}.grade-max{color:var(--text-dim)}.cell-summary{color:var(--text-muted);max-width:0;font-size:11px}.summary-text{text-overflow:ellipsis;white-space:nowrap;display:block;overflow:hidden}.sub-table tbody tr{-webkit-user-select:none;user-select:none}.row-selected{background:var(--accent-soft)!important}.row-ungraded td.cell-name{border-left:3px solid #818cf8;padding-left:8px}html.dark .row-ungraded td.cell-name{border-left-color:#6366f1}.detail-empty{color:var(--text-muted);padding:24px 16px;font-size:12px}.detail-hdr{border-bottom:1px solid var(--border);justify-content:space-between;align-items:flex-start;padding:10px 12px 8px;display:flex}.detail-name{font-size:13px;font-weight:600}.detail-email{color:var(--text-muted);margin-top:1px;font-size:11px}.grade-row{border-bottom:1px solid var(--border);padding:8px 12px}.grade-label{letter-spacing:.06em;text-transform:uppercase;color:var(--text-muted);margin-bottom:4px;font-size:10px;font-weight:600}.grade-controls{align-items:center;gap:6px;display:flex}.grade-big{font-family:var(--mono);font-variant-numeric:tabular-nums;text-align:right;min-width:42px;font-size:20px;font-weight:600;display:inline-block}.grade-overridden{color:var(--accent)}.grade-max-detail{color:var(--text-muted);font-size:13px}.manual-grade-input{width:60px}.grade-lock-btn{font-size:11px}.override-note{color:var(--accent);margin-top:3px;font-size:10px}.detail-section{border-bottom:1px solid var(--border);padding-bottom:4px}.detail-sub{letter-spacing:.06em;text-transform:uppercase;color:var(--text-muted);align-items:center;gap:6px;padding:6px 12px 2px;font-size:10px;font-weight:600;display:flex}.detail-sub-hint{letter-spacing:0;text-transform:none;color:var(--text-dim);font-size:10px;font-weight:400}.detail-empty-hint{color:var(--text-dim);padding:4px 12px;font-size:11px;font-style:italic;list-style:none}.detail-fi-list{padding:2px 8px 4px;list-style:none}.dfi{cursor:pointer;border-radius:3px;align-items:flex-start;gap:4px;margin-bottom:2px;padding:2px 4px;display:flex}.dfi:hover{background:var(--bg)}.dfi-applied{background:var(--accent-soft)}.dfi-applied:hover{background:var(--accent-soft);filter:brightness(.97)}.dfi-pts{width:50px}.dfi-lbl{border:1px solid var(--border);background:var(--bg);min-width:0;color:var(--text);font-size:11px;font-family:var(--font);resize:none;border-radius:2px;flex:1;width:100%;min-height:20px;padding:2px 5px;line-height:1.4;display:block;overflow:hidden}.dfi:not(.dfi-applied) .dfi-lbl{color:var(--text-muted);background:0 0;border-color:#0000}.dfi-lbl:focus{outline:1px solid var(--accent);border-color:var(--accent)}.dfi-lbl:disabled{opacity:.45;cursor:default}.dfi-pts:disabled{opacity:.4}.dfi:not(.dfi-applied) .dfi-pts,.dfi:not(.dfi-applied) .dfi-lbl{pointer-events:none;opacity:.45}.dfi .pts-input,.dfi 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.fsl-pts{color:var(--green)}.fsl-neutral .fsl-pts{color:var(--text-dim)}.fsl-label{color:var(--text-muted);overflow-wrap:break-word;word-break:break-word;flex:1;min-width:0}.summary-empty{color:var(--text-dim);padding:4px 12px 6px;font-size:11px;font-style:italic}.late-policy-block{padding:4px 12px 8px}.lp-select{border:1px solid var(--border);background:var(--bg);min-width:0;color:var(--text);border-radius:3px;flex:1;padding:2px 4px;font-size:11px}.lp-select:focus{outline:1px solid var(--accent);border-color:var(--accent)}.lp-unit{color:var(--text-dim);white-space:nowrap;font-size:10px}.col-date{white-space:nowrap;width:80px}.cell-date{color:var(--text-muted);white-space:nowrap;font-size:11px}.cell-late{color:#c2410c}html.dark .cell-late{color:#fb923c}.late-days{opacity:.8;font-size:10px}.late-row-section{padding-bottom:6px}.late-controls{flex-wrap:wrap;align-items:center;gap:6px;padding:2px 12px 4px;display:flex}.late-info,.late-days-label{color:var(--text-muted);font-size:11px}.late-penalty-amt{color:#dc2626;min-width:36px;font-size:11px;font-weight:600}html.dark .late-penalty-amt{color:#f87171}.late-penalty-amt.late-none{color:var(--green);font-weight:400}.late-waive{color:var(--text-dim);font-size:10px}.group-names{border-bottom:1px solid var(--border);flex-wrap:wrap;gap:4px;padding:6px 12px 8px;display:flex}.group-name-tag{background:var(--accent-soft);color:var(--accent);white-space:nowrap;border-radius:10px;padding:1px 7px;font-size:11px}.gfi-check{flex-shrink:0;align-self:center;margin-top:0}.gfi-label{color:var(--text);flex:1;font-size:11px}.gfi-pts{color:var(--text-muted);flex-shrink:0;font-size:11px;font-weight:600}.gfi-count{color:var(--text-dim);text-align:right;flex-shrink:0;min-width:28px;font-size:10px}.dfi-mixed{background:color-mix(in srgb, var(--accent-soft) 50%, transparent)}#footer{border-top:1px solid var(--border);color:var(--text-dim);justify-content:flex-end;align-items:center;gap:12px;padding:6px 12px;font-size:10px;display:flex}#footer a{color:var(--text-dim);text-decoration:none}#footer a:hover{color:var(--text-muted);text-decoration:underline}::-webkit-scrollbar{width:5px;height:5px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:3px}