:root{--bg: #f4f6f9;--panel: #ffffff;--panel-2: #fafbfc;--panel-3: #eef1f6;--input-bg: #ffffff;--border: #e0e4ea;--text: #1f2430;--text-muted: #6b7280;--text-soft: #555555;--on-pastel: #1f2430;--primary: #2f6fed;--primary-dark: #1f52b8;--primary-hover: #1f52b8;--on-primary: #ffffff;--accent-bg: #e8f0fe;--accent-border: #b9cdf5;--danger: #e0483f;--error-bg: #fdecea;--error-border: #f5b7b1;--error-text: #a3312a;--ok-text: #1a6b1a;--ok-bg: #e8f5e9;--ok-border: #a5d6a7;--warn-bg: #fff4e5;--warn-border: #f5c26b;--warn-strong: #e0a800;--warn-text: #8a4a00;--warn-soft: #fff1e0;--badge-bg: #e4e7ee;--badge-text: #444444;--vpup-bg: #dcecff;--vpup-text: #1a4d8f;--utr-bg: #ffe7cf;--utr-text: #8a4a00;--posl-bg: #e0f5e0;--posl-text: #1a6b1a;--shift-off: #f0f2f5;--split-line: #b9c0cc;--avail-undesired: #ffe7a8;--avail-blocked: #f5b7b1;--backdrop: rgba(20, 25, 40, .4);--radius: 10px;--radius-sm: 7px;--shadow: 0 1px 2px rgba(20, 25, 40, .05), 0 1px 3px rgba(20, 25, 40, .06);--shadow-lg: 0 12px 32px rgba(20, 25, 40, .16), 0 2px 6px rgba(20, 25, 40, .08);--focus: 0 0 0 3px rgba(47, 111, 237, .28);color-scheme:light;font-family:Segoe UI Variable Text,Segoe UI,system-ui,-apple-system,Roboto,Arial,sans-serif}:root[data-theme=grey]{--bg: #dfe2e7;--panel: #eceef1;--panel-2: #e4e7eb;--panel-3: #d8dce2;--input-bg: #f5f6f8;--border: #c7ccd4;--text-muted: #5b6270;--accent-bg: #d9e3f6;--accent-border: #a9bfe9;--shift-off: #d9dde3;--shadow: 0 1px 3px rgba(20, 25, 40, .12)}:root[data-theme=dark]{--bg: #14171c;--panel: #1d2128;--panel-2: #242931;--panel-3: #2b313b;--input-bg: #171a20;--border: #353b47;--text: #e3e6ec;--text-muted: #9aa2b1;--text-soft: #b5bcc8;--primary: #4c84f5;--primary-dark: #9dbdff;--primary-hover: #2f6fed;--accent-bg: #1e2d4a;--accent-border: #34507f;--danger: #ef6b63;--error-bg: #3a1f1f;--error-border: #6e3431;--error-text: #ff9b93;--ok-text: #7fd18a;--ok-bg: #1b3122;--ok-border: #2f5a3a;--warn-bg: #31281a;--warn-border: #7a5b25;--warn-text: #f0b46a;--warn-soft: #3a2c1a;--badge-bg: #2b313b;--badge-text: #c9ced6;--vpup-bg: #1e2d4a;--vpup-text: #9cc0ff;--utr-bg: #3a2c1a;--utr-text: #f0b46a;--posl-bg: #1b3122;--posl-text: #7fd18a;--shift-off: #191c22;--split-line: #4a5160;--avail-undesired: #5a4a1e;--avail-blocked: #5c2a28;--backdrop: rgba(0, 0, 0, .6);--shadow: 0 1px 3px rgba(0, 0, 0, .4);--shadow-lg: 0 12px 32px rgba(0, 0, 0, .55);--focus: 0 0 0 3px rgba(76, 132, 245, .4);color-scheme:dark}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--text);font-size:14px}button{font-family:inherit;cursor:pointer}input,select,textarea{font-family:inherit;font-size:13px;background:var(--input-bg);color:var(--text);border:1px solid var(--border);border-radius:var(--radius-sm)}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary);box-shadow:var(--focus)}button:focus-visible,.portal-tile:focus-visible{outline:none;box-shadow:var(--focus)}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-thumb{background:var(--border);border-radius:10px;border:2px solid transparent;background-clip:content-box}::-webkit-scrollbar-thumb:hover{background:var(--text-muted);background-clip:content-box;border:2px solid transparent}::-webkit-scrollbar-track{background:transparent}input[type=checkbox],input[type=radio],input[type=color]{background:none;border:none}.app-shell{display:flex;flex-direction:column;height:100vh}.topbar{display:flex;align-items:center;gap:14px;height:56px;padding:0 16px;background:var(--panel);border-bottom:1px solid var(--border);flex-shrink:0;position:relative;z-index:30}.brand{font-size:16px;font-weight:700;color:var(--text);display:flex;align-items:center;gap:8px;white-space:nowrap;letter-spacing:-.01em}.brand-icon{font-size:18px}.tabs{display:flex;gap:2px;min-width:0;overflow-x:auto;scrollbar-width:none;align-self:stretch;align-items:stretch;margin-left:6px}.tabs::-webkit-scrollbar{display:none}.tab-btn{border:none;background:transparent;padding:0 12px;border-radius:0;font-size:13px;font-weight:600;color:var(--text-muted);white-space:nowrap;border-bottom:2px solid transparent;margin-bottom:-1px}.tab-btn:hover{color:var(--text);background:transparent}.tab-btn.active{color:var(--primary-dark);border-bottom-color:var(--primary);background:transparent}.topbar-right{margin-left:auto;display:flex;align-items:center;gap:10px;flex-shrink:0}.year-select{display:flex;align-items:center;gap:6px}.year-select select{height:32px;padding:0 8px;border-radius:var(--radius-sm);border:1px solid 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var(--border);background:var(--panel);color:var(--text);font-size:13px;font-weight:600}.user-chip:hover{border-color:var(--primary)}.avatar{width:28px;height:28px;border-radius:50%;background:var(--accent-bg);color:var(--primary-dark);display:inline-flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;letter-spacing:.02em}.user-chip-name{max-width:150px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.caret{color:var(--text-muted);font-size:10px}.menu-pop{position:absolute;right:0;top:calc(100% + 6px);width:270px;background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-lg);padding:8px;z-index:60;animation:pop .12s ease-out}.menu-head{padding:6px 8px 10px;border-bottom:1px solid var(--border);margin-bottom:6px}.menu-name{font-weight:700;font-size:14px}.menu-sub{color:var(--text-muted);font-size:12px;margin-top:2px}.menu-label{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:var(--text-muted);padding:6px 8px 4px}.segmented{display:flex;background:var(--panel-3);border-radius:var(--radius-sm);padding:3px;gap:2px;margin:0 4px 8px}.segmented button{flex:1;border:none;background:transparent;border-radius:5px;padding:5px 4px;font-size:12px;font-weight:600;color:var(--text-muted)}.segmented button.active{background:var(--panel);color:var(--text);box-shadow:var(--shadow)}.menu-item{display:block;width:100%;text-align:left;border:none;background:transparent;padding:8px;border-radius:var(--radius-sm);font-size:13px;color:var(--text)}.menu-item:hover{background:var(--panel-2)}.menu-item.danger{color:var(--danger)}@keyframes pop{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}.btn{border:1px solid var(--border);background:var(--panel);border-radius:var(--radius-sm);padding:7px 13px;font-size:13px;font-weight:600;color:var(--text);transition:background .12s,border-color .12s,color .12s,box-shadow .12s}.btn:hover{border-color:var(--primary);color:var(--primary-dark)}.btn.primary{background:var(--primary);border-color:var(--primary);color:var(--on-primary);box-shadow:0 1px 2px #2f6fed40}.btn.primary:hover{background:var(--primary-hover);color:var(--on-primary)}.btn.danger{color:var(--danger);border-color:var(--danger);background:var(--panel)}.btn.danger:hover{background:var(--error-bg)}.btn.danger-solid{background:var(--danger);border-color:var(--danger);color:#fff}.btn.danger-solid:hover{filter:brightness(.93);color:#fff}.btn.ghost{border-color:transparent;background:transparent;color:var(--text-muted)}.btn.ghost:hover{background:var(--panel-2);color:var(--danger);border-color:transparent}.btn.small{padding:4px 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h3{font-size:11px;text-transform:uppercase;letter-spacing:.04em;color:var(--text-muted);margin:12px 4px 6px}.sidebar-item{display:flex;align-items:center;justify-content:space-between;padding:7px 10px;border-radius:var(--radius-sm);cursor:pointer;font-size:13px;margin-bottom:1px;position:relative}.sidebar-item:hover{background:var(--bg)}.sidebar-item.active{background:var(--accent-bg);color:var(--primary-dark);font-weight:600}.sidebar-item.active:before{content:"";position:absolute;left:-12px;top:6px;bottom:6px;width:3px;border-radius:0 3px 3px 0;background:var(--primary)}.sidebar-item.drag-over{box-shadow:inset 0 2px 0 var(--primary)}.sidebar-item[draggable=true]{cursor:grab}table.grid tr.drag-over td{box-shadow:inset 0 2px 0 var(--primary)}table.grid tr.dragging td{opacity:.5}.drag-handle{color:var(--text-muted);cursor:grab;margin-right:4px;font-size:11px}.card{background:var(--panel);border:1px solid 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.workload-bar-track{height:6px}.workload-meta{font-size:11.5px;color:var(--text-muted);margin-top:4px}.workload-detail{position:sticky;top:0;border:1px solid var(--border);border-radius:var(--radius);padding:16px;background:var(--panel-2)}.detail-head{display:flex;align-items:center;gap:8px}.detail-head h4{margin:0;font-size:16px}.detail-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:14px 0 18px}.detail-stats div{display:flex;flex-direction:column;gap:2px}.detail-stats span{font-size:11px;color:var(--text-muted);text-transform:uppercase;letter-spacing:.03em;font-weight:600}.detail-stats b{font-size:17px;font-variant-numeric:tabular-nums}.week-chart{position:relative;height:180px;display:flex;align-items:flex-end;gap:2px;border-bottom:1px solid var(--border)}.week-col{flex:1;height:100%;display:flex;align-items:flex-end}.week-bar{width:100%;border-radius:3px 3px 0 0;min-height:0;opacity:.9}.week-bar.over{box-shadow:inset 0 3px 0 var(--danger);opacity:1}.week-chart-line{position:absolute;left:0;right:0;border-top:1px dashed var(--text-muted);z-index:1;pointer-events:none}.week-chart-line.limit{border-top-color:var(--danger)}.week-chart-line span{position:absolute;right:0;top:-15px;font-size:10px;color:var(--text-muted);background:var(--panel-2);padding:0 3px}.week-chart-line.limit span{color:var(--danger)}.week-axis{display:flex;gap:2px;margin-top:4px}.week-axis span{flex:1;text-align:center;font-size:9.5px;color:var(--text-muted)}.detail-classes{margin-top:14px;display:flex;flex-wrap:wrap;gap:6px}.detail-classes .pill{margin-left:0}@media(max-width:900px){.workload-layout{grid-template-columns:1fr}.workload-list{max-height:360px}}.segmented.page-tabs button{white-space:nowrap}.danger-zone{border:1px solid var(--error-border);background:var(--error-bg);border-radius:var(--radius);padding:16px 18px}.danger-zone h3{margin:0 0 8px;color:var(--error-text);font-size:16px}.danger-zone p{margin:6px 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8px;border-radius:var(--radius-sm);cursor:pointer;border:1px solid transparent}.subject-row:hover{background:var(--panel)}.subject-row.on{background:var(--accent-bg);border-color:var(--accent-border)}.subject-main{display:flex;flex-direction:column;min-width:0}.subject-name{font-size:13px;font-weight:600}.subject-meta{font-size:11px;color:var(--text-muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.subject-hours{font-size:12px;color:var(--text-muted);font-variant-numeric:tabular-nums;white-space:nowrap}.subject-wishers{font-size:11px;text-align:right;color:var(--text-muted);white-space:nowrap}.subject-wishers.none{color:var(--error-text);font-weight:700}table.grid tr.row-bad td{background:var(--error-bg)}.problems{display:flex;flex-direction:column;gap:10px;background:var(--warn-bg);border:1px solid var(--warn-border);border-radius:var(--radius);padding:12px 16px;margin-bottom:12px;font-size:13px}.problems ul{margin:4px 0 0;padding-left:18px}.filter-row{display:flex;flex-wrap:wrap;gap:10px 14px;align-items:flex-end;padding:10px 12px;margin-bottom:12px;background:var(--panel-2);border:1px solid var(--border);border-radius:var(--radius)}.filter-row label{display:flex;flex-direction:column;gap:3px;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.03em;color:var(--text-muted)}.filter-row label.inline{flex-direction:row;align-items:center;gap:5px;text-transform:none;letter-spacing:0;font-size:13px;font-weight:400;color:var(--text);height:30px}.filter-row select{height:30px;padding:0 8px;min-width:150px;text-transform:none;font-weight:400;letter-spacing:0}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px;margin-bottom:20px}.stat-card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow)}.stat-card .label{font-size:12px;color:var(--text-muted);font-weight:600;text-transform:uppercase;letter-spacing:.02em}.stat-card .value{font-size:26px;font-weight:700;margin-top:6px;letter-spacing:-.02em}.warning-box{background:var(--warn-bg);border:1px solid var(--warn-border);border-radius:var(--radius);padding:12px 16px;margin-bottom:14px}.warning-box h4{margin:0 0 6px;font-size:13px}.warning-box ul{margin:0;padding-left:18px;font-size:13px}table.grid{border-collapse:collapse;font-size:12px}table.grid th,table.grid td{border:1px solid var(--border);padding:3px 6px;white-space:nowrap}table.grid thead th{background:var(--panel-2);position:sticky;top:0;z-index:2;font-weight:600;color:var(--text-muted);font-size:11.5px}table.grid .sticky-col{position:sticky;background:var(--panel);z-index:1}table.grid .col-code{left:0;min-width:46px}table.grid .col-name{left:46px;min-width:220px;text-align:left;white-space:normal}table.grid thead .col-code,table.grid thead .col-name{z-index:3;background:var(--panel-2)}table.grid .num-cell{text-align:right;min-width:30px}table.grid .total-row td{background:var(--panel-3);font-weight:700}table.grid tbody tr:hover td:not(.sticky-col){filter:brightness(.95)}table.grid .module-row{cursor:pointer}table.grid .teacher-row td.col-name{color:var(--text-soft);font-style:italic;font-size:11px;padding-left:16px}.legend{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}.legend-chip{display:flex;align-items:center;gap:6px;font-size:12px;padding:3px 8px;border-radius:20px;border:1px solid var(--border)}.color-dot{width:12px;height:12px;border-radius:50%;flex-shrink:0;border:1px solid rgba(0,0,0,.15)}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:var(--backdrop);display:flex;align-items:flex-start;justify-content:center;padding:40px 20px;overflow-y:auto;z-index:50}.modal{background:var(--panel);border-radius:14px;width:100%;max-width:780px;box-shadow:var(--shadow-lg);border:1px solid var(--border);animation:pop .14s ease-out}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:14px 20px;border-bottom:1px solid var(--border)}.modal-header h2{font-size:16px;margin:0;letter-spacing:-.01em}.confirm-dialog{max-width:440px;margin-top:12vh}.confirm-title{margin:0 0 8px;font-size:16px}.confirm-message{color:var(--text-muted);font-size:14px;line-height:1.5}.toast-stack{position:fixed;right:18px;bottom:18px;display:flex;flex-direction:column;gap:8px;z-index:90}.toast{display:flex;align-items:center;gap:10px;min-width:240px;max-width:420px;padding:10px 14px;border-radius:var(--radius);background:var(--panel);color:var(--text);border:1px solid var(--border);box-shadow:var(--shadow-lg);font-size:13px;cursor:pointer;animation:pop .16s ease-out}.toast-icon{width:20px;height:20px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;color:#fff;flex-shrink:0}.toast.success 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