:root{--color-bg:#f3f4f6;--color-glass-bg:#ffffffb3;--color-glass-border:#ffffff4d;--color-text-main:#1f2937;--color-text-sub:#4b5563;--color-primary:#3b82f6;--color-primary-hover:#2563eb;--color-secondary:#fff;--color-secondary-hover:#f3f4f6;--color-border:#e5e7eb;--color-success:#10b981;--shadow-sm:0 1px 2px 0 #0000000d;--shadow-md:0 4px 6px -1px #0000001a, 0 2px 4px -1px #0000000f;--shadow-lg:0 10px 15px -3px #0000001a, 0 4px 6px -2px #0000000d;--radius-md:.5rem;--radius-lg:1rem;--transition:all .2s ease-in-out}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--color-bg);color:var(--color-text-main);background:linear-gradient(135deg,#e0eafc 0%,#cfdef3 100%);height:100vh;font-family:Inter,Helvetica Neue,Arial,Hiragino Kaku Gothic ProN,Hiragino Sans,Meiryo,sans-serif;line-height:1.5;overflow:hidden}.app-container{gap:1rem;height:100vh;padding:1rem;display:flex}.glass-panel{background:var(--color-glass-bg);-webkit-backdrop-filter:blur(12px);border:1px solid var(--color-glass-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-md)}.sidebar{flex-direction:column;flex-shrink:0;width:260px;display:flex}.sidebar-header{padding:1.5rem 1rem 1rem}.sidebar-header h1{color:var(--color-primary);font-size:1.25rem;font-weight:600}.sidebar-actions{border-bottom:1px solid var(--color-border);flex-direction:column;gap:.75rem;padding:0 1rem 1rem;display:flex}.btn-full{width:100%}.io-group{gap:.5rem;display:flex}.io-group>*{text-align:center;flex:1}.tree-container{flex:1;padding:1rem;overflow-y:auto}.tree-container h3{color:var(--color-text-sub);text-transform:uppercase;margin-bottom:.5rem;font-size:.875rem}.tree-list{list-style:none}.tree-subject{margin-top:.75rem;margin-bottom:.25rem;font-weight:600}.tree-item{border-radius:var(--radius-md);cursor:pointer;transition:var(--transition);justify-content:space-between;align-items:center;margin-left:.5rem;padding:.4rem .5rem;font-size:.875rem;display:flex}.tree-item:hover{background-color:var(--color-secondary-hover)}.tree-item.active{background-color:var(--color-primary);color:#fff}.btn-delete-tree{color:#9ca3af;cursor:pointer;background:0 0;border:none;border-radius:4px;padding:0 4px;font-size:1rem;line-height:1;transition:all .2s;display:none}.tree-item:hover .btn-delete-tree{display:block}.btn-delete-tree:hover{color:#ef4444;background-color:#ef44441a}.tree-item.active .btn-delete-tree{color:#ffffffb3}.tree-item.active .btn-delete-tree:hover{color:#fff;background-color:#fff3}.main-content{flex:1;gap:1rem;min-width:0;display:flex}.btn{border-radius:var(--radius-md);cursor:pointer;transition:var(--transition);border:none;outline:none;justify-content:center;align-items:center;padding:.5rem 1rem;font-size:.875rem;font-weight:500;display:inline-flex}.btn-primary{background-color:var(--color-primary);color:#fff}.btn-primary:hover{background-color:var(--color-primary-hover);transform:translateY(-1px)}.btn-secondary{background-color:var(--color-secondary);color:var(--color-text-main);border:1px solid var(--color-border)}.btn-secondary:hover{background-color:var(--color-secondary-hover)}.btn-small{padding:.25rem .5rem;font-size:.75rem}.select-input{border:1px solid var(--color-border);border-radius:var(--radius-md);background-color:#fff;outline:none;padding:.5rem;font-size:.875rem}.editor-section{flex-direction:column;flex:1;min-width:0;display:flex;overflow:hidden}.section-header{border-bottom:1px solid var(--color-border);flex-shrink:0;justify-content:space-between;align-items:center;padding:1rem;display:flex}.section-header h2{font-size:1rem;font-weight:600}.editor-actions,.preview-actions{align-items:center;gap:.5rem;display:flex}.table-container{flex:1;padding:0;overflow:auto}#data-table{border-collapse:collapse;width:100%;font-size:.875rem}#data-table th,#data-table td{border-bottom:1px solid var(--color-border);border-right:1px solid var(--color-border);white-space:nowrap;padding:.5rem .75rem}#data-table th{z-index:10;text-align:left;background-color:#f3f4f6f2;font-weight:600;position:sticky;top:0}.th-content{align-items:center;gap:.5rem;display:flex}#data-table tbody tr{background-color:#fff}#data-table tbody tr:hover{background-color:var(--color-secondary-hover)}#data-table td[contenteditable=true]{cursor:text;outline:none}#data-table td[contenteditable=true]:focus{box-shadow:inset 0 0 0 2px var(--color-primary);background-color:#eff6ff}.col-select{text-align:center;width:40px}.preview-section{background-color:#d1d5db;flex-direction:column;flex:1;min-width:0;display:flex;overflow:hidden}.preview-container{flex:1;justify-content:center;align-items:flex-start;padding:2rem;display:flex;overflow:auto}.paper-canvas{box-shadow:var(--shadow-lg);background-color:#fff;flex-shrink:0;position:relative}.a4-portrait{width:210mm;height:297mm}.a4-landscape{width:297mm;height:210mm}.a3-portrait{width:297mm;height:420mm}.a3-landscape{width:420mm;height:297mm}.paper-content{flex-direction:column;width:100%;height:100%;padding:15mm;display:flex}.paper-content.multi-mode{padding:5mm}.preview-title{text-align:center;border-bottom:2px solid var(--color-text-main);margin-bottom:20px;padding-bottom:5px;font-size:18px}.paper-content.multi-mode .preview-title{border-bottom-width:1px;margin-top:0;margin-bottom:5px;padding-bottom:2px;font-size:14px}.preview-sub-title{text-align:center;border-bottom:1px dashed var(--color-border);margin:4px 0;padding-bottom:2px;font-size:1.1em;font-weight:700}.tree-item input[type=checkbox]{cursor:pointer;margin-right:8px}.print-grid{gap:15px;width:100%;height:100%;display:grid}.grid-cell{flex-direction:column;display:flex;overflow:hidden}.masonry-layout{flex:1;column-gap:20px;overflow:hidden}.print-columns{gap:20px;width:100%;height:100%;display:flex}.print-table{border-collapse:collapse;table-layout:auto;width:100%}.print-table th,.print-table td{text-align:left;white-space:nowrap;border:1px solid #9ca3af;padding:4px}.print-table th{text-align:center;background-color:#f3f4f6;border-bottom:2px solid #4b5563;font-weight:600}