:root{color:var(--ink);background:var(--page);font-synthesis:none;text-rendering:optimizelegibility;--page:#eef4fa;--ink:#1f2937;--muted:#667085;--line:#e1e5eb;--line-strong:#cbd5e1;--paper:#fbfdff;--accent:#2563eb;--accent-strong:#1d4ed8;--accent-soft:#eaf1ff;--accent-wash:#f7faff;--warning:#b45309;--danger:#b42318;--green:var(--accent);--green-light:var(--accent-soft);--orange:var(--accent);--yellow:#dbeafe;--shadow:0 1px 2px #0f172a0a;font-family:Pretendard,Noto Sans KR,Malgun Gothic,sans-serif}*{box-sizing:border-box}body{background:var(--page);min-width:320px;min-height:100vh;margin:0}button,input,select,textarea{font:inherit}button{cursor:pointer}button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline-offset:2px;outline:3px solid #2563eb3d}.app-shell{min-height:100vh}.app-title-row{justify-content:flex-start;align-items:center;gap:16px;width:min(1200px,100% - 36px);margin:0 auto;padding:24px 0 6px;display:flex}.app-title-row 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span:last-child{color:var(--muted);font-size:15px}.paste-icon{background:var(--green-light);width:38px;height:38px;color:var(--green);border-radius:8px;place-items:center;font-size:18px;font-weight:700;display:grid}.paste-message{color:var(--green);margin:12px 0 0;font-size:15px;font-weight:700}.input-alternative{justify-content:center;align-items:center;gap:12px;margin-top:14px;display:flex}.input-alternative span{color:#7c838d;font-size:14px}.input-alternative button{border:1px solid var(--line-strong);min-height:40px;color:var(--green);background:#fff;border-radius:7px;padding:0 16px;font-weight:700;transition:border-color .16s,background .16s}.input-alternative button:hover{border-color:var(--green);background:var(--accent-wash)}.source-list{gap:14px;margin-top:20px;display:grid}.source-card{border:1px solid var(--line);background:#fff;border-radius:10px;overflow:hidden;box-shadow:0 1px 2px #0f172a06}.source-card summary{background:#f6f9fd;align-items:center;gap:12px;padding:14px 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var(--line);background:#f7faff;justify-content:flex-end;align-items:center;min-height:58px;padding:10px 20px;display:flex}.export-copy-button{border:1px solid var(--accent);min-height:40px;color:var(--accent-strong);background:#fff;border-radius:8px;align-items:center;gap:9px;padding:0 14px 0 10px;font-size:14px;font-weight:700;transition:background .16s,box-shadow .16s,transform .16s;display:inline-flex;box-shadow:0 1px 2px #2563eb14}.export-copy-button:hover{background:var(--accent-wash);transform:translateY(-1px);box-shadow:0 4px 10px #2563eb24}.export-file-icons{align-items:center;padding-left:1px;display:inline-flex}.export-file-badge{color:#fff;border:2px solid #fff;border-radius:4px;place-items:center;width:22px;height:24px;font-size:12px;font-weight:800;line-height:1;display:grid;box-shadow:0 0 0 1px #0f172a1f}.export-file-badge.excel{background:#217346}.export-file-badge.hwp{background:#2f65bd;margin-left:-5px}.solution-navigator{border-bottom:1px solid var(--line);background:#f4f8fd;justify-content:center;align-items:center;gap:12px;padding:13px 16px;display:flex}.solution-navigator button{min-width:68px;height:36px;color:var(--green);background:#fff;border:1px solid #aebdb3;border-radius:8px;font-weight:700}.solution-navigator button:hover:not(:disabled){border-color:var(--green);background:#edf5ef}.solution-navigator button:disabled{cursor:not-allowed;opacity:.38}.solution-navigator label{color:var(--muted);align-items:center;gap:7px;font-size:15px;display:flex}.solution-navigator select{height:36px;color:var(--ink);background:#fff;border:1px solid #aebdb3;border-radius:8px;padding:0 28px 0 10px;font-weight:700}.result-box.success>.table-scroll{background:#fff;padding:0}.result-table{width:100%;min-width:642px;margin:0;font-family:Arial,Malgun Gothic,sans-serif;font-size:16px}.result-table th,.result-table td{text-align:center;white-space:pre-wrap;border:1px solid #9ca3af;height:42px;padding:8px 12px;line-height:1.35}.result-table thead th{color:#1d4ed8;background:#eaf2ff;font-size:16px;font-weight:700}.result-table thead th:first-child{color:#1e40af;background:#dbeafe}.result-table tbody th{color:#475569;background:#f1f5f9;font-size:16px;font-weight:700}.result-table thead th{z-index:1;box-shadow:0 1px 0 var(--line);position:sticky;top:0}.result-table td.closed-slot{background:#fff}.result-table .assignment-chip{color:inherit;font:inherit;background:0 0;border-radius:0;margin:0;padding:0;font-weight:400;display:inline}.assignment-chip{background:var(--yellow);color:#1e40af;border-radius:6px;margin:2px;padding:7px 10px;font-size:15px;font-weight:700;display:inline-block}.assignment-list{background:var(--line);border-top:1px solid var(--line);grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:1px;display:grid}.assignment-list div{background:#fff;justify-content:space-between;gap:8px;padding:14px;font-size:15px;display:flex}.assignment-list span{color:var(--muted)}.timetable-selection-panel{background:var(--paper)}.timetable-selection-heading{justify-content:space-between;align-items:center;margin-bottom:16px}.timetable-selection-heading h2{margin-bottom:6px}.selection-library-row{gap:4px;display:grid}.section-eyebrow{color:var(--accent);letter-spacing:.04em;margin-bottom:7px;font-size:13px;font-weight:700;display:block}.selection-open-button,.selection-change-button{border:1px solid var(--accent);min-height:42px;color:var(--accent-strong);background:#fff;border-radius:8px;flex:none;padding:0 15px;font-size:14px;font-weight:700;transition:background .16s,color .16s,border-color .16s}.selection-open-button:hover,.selection-change-button:hover{background:var(--accent);color:#fff}.selection-load-button{border-color:var(--accent);background:var(--accent);color:#fff;border-radius:10px;justify-content:center;align-items:center;width:100%;min-height:62px;margin:0;font-size:17px;display:flex}.selection-load-button:hover{border-color:var(--accent-strong);background:var(--accent-strong)}.selection-help-button,.schedule-help-button{border-color:var(--accent);background:var(--accent);color:#fff;margin-left:auto;padding:0 12px;font-size:14px;min-height:36px!important}.selection-help-button:hover,.schedule-help-button:hover{border-color:var(--accent-strong);background:var(--accent-strong);color:#fff}.timetable-selection-empty{background:#f7faff;border:1px dashed #b7c7dd;border-radius:10px;align-items:center;gap:16px;padding:23px 22px;display:flex}.timetable-selection-icon,.timetable-selection-check{background:var(--accent-soft);width:42px;height:42px;color:var(--accent);border-radius:9px;flex:none;place-items:center;font-size:20px;font-weight:800;display:grid}.timetable-selection-empty strong,.timetable-selection-selected strong{color:var(--ink);font-size:17px;display:block}.timetable-selection-empty p,.timetable-selection-selected p{color:var(--muted);margin:5px 0 0;font-size:14px;line-height:1.55}.timetable-selection-selected{background:#eef5ff;border:1px solid #b8d0f6;border-radius:10px;align-items:center;gap:14px;margin-top:14px;padding:14px 16px;display:flex}.timetable-selection-check{background:var(--accent);color:#fff;font-size:21px}.timetable-selection-selected>div{flex:1;min-width:0}.timetable-input-area{margin-top:22px}.timetable-preview{background:#f7faff;border:1px solid #d9e3f0;border-radius:12px;margin-top:24px;padding:22px 18px 18px}.timetable-preview-heading{justify-content:space-between;align-items:baseline;gap:12px;margin-bottom:12px;display:flex}.timetable-preview-heading h3{margin:0;font-size:19px}.timetable-preview-heading span{color:var(--muted);font-size:14px}.timetable-preview .source-list{margin-top:0}.timetable-preview .source-card{border-color:#cbd8e8;box-shadow:0 2px 5px #253f5e0f}.timetable-preview .source-card summary{background:#edf4fc}.timetable-preview .source-card summary:hover{background:#e5effb}.timetable-preview .source-card .table-scroll{background:#fff;max-height:none;overflow:auto}.timetable-preview .source-card .editable-grid td,.timetable-preview .source-card .editable-grid th{border-color:#d4ddea;min-width:112px;height:52px}.timetable-preview .source-card .editable-grid .preview-corner-cell{background:#dbeafe}.timetable-preview .source-card .editable-grid .preview-day-cell{background:#eaf2ff}.timetable-preview .source-card .editable-grid .preview-period-cell{background:#f1f5f9}.timetable-preview .source-card .editable-grid textarea{min-height:52px;padding:8px 10px;font-size:15px;line-height:1.35}.timetable-save-row{border-top:1px solid #d9e3f0;justify-content:space-between;align-items:flex-start;gap:24px;margin-top:18px;padding-top:18px;display:flex}.recognized-class-summary{flex:1;min-width:0}.recognized-summary-heading{align-items:center;gap:10px;margin-bottom:10px;display:flex}.recognized-summary-heading strong{color:var(--ink);font-size:15px}.recognized-summary-heading span{color:var(--muted);font-size:13px}.recognized-class-list{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));align-items:start;gap:8px;display:grid}.recognized-class-card{background:#fff;border:1px solid #d4dfef;border-radius:8px;grid-template-columns:48px minmax(0,1fr);align-items:start;gap:10px;min-width:0;padding:9px 10px;display:grid}.recognized-class-label{color:var(--accent-strong);padding-top:0;font-size:15px;line-height:1.35;display:block}.recognized-subject-list{gap:4px;min-width:0;display:grid}.recognized-subject-row{grid-template-columns:68px minmax(0,1fr);align-items:baseline;gap:5px;min-width:0;font-size:13px;line-height:1.35;display:grid}.recognized-subject-name{overflow-wrap:anywhere;min-width:0;color:var(--ink)}.recognized-slot-list{min-width:0;color:var(--muted);grid-template-columns:repeat(2,minmax(0,1fr));gap:2px 4px;display:grid}.recognized-slot{white-space:nowrap;min-width:0;display:block}.recognized-slot:nth-child(2n){padding-left:9px;position:relative}.recognized-slot:nth-child(2n):before{content:"·";color:#a4afbe;position:absolute;left:0}.recognized-summary-empty{color:var(--muted);margin:0;font-size:14px}.timetable-save-row 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