.app-layout{display:flex;flex-direction:column;height:100vh;overflow:hidden}.top-nav{display:flex;align-items:center;gap:12px;padding:10px 20px;background:var(--surface);border-bottom:1px solid var(--border);flex-shrink:0}.top-nav .logo{font-weight:700;font-size:16px;color:var(--accent);margin-right:8px}.top-nav select{min-width:220px}.lesson-metadata{padding:12px 20px;background:var(--surface);border-bottom:1px solid var(--border);display:flex;align-items:center;gap:20px;flex-shrink:0}.lesson-metadata input{font-size:16px;font-weight:600;width:240px}.tab-bar{display:flex;align-items:center;background:var(--surface);border-bottom:1px solid var(--border);padding:0 20px;flex-shrink:0}.tab-btn{background:transparent;color:var(--text-muted);border-radius:0;padding:10px 18px;border-bottom:2px solid transparent}.tab-btn.active{color:var(--accent);border-bottom-color:var(--accent)}.tab-btn:hover{color:var(--text)}.tab-content{flex:1;overflow-y:auto;padding:20px}.story-table{width:100%;border-collapse:collapse}.story-table th{text-align:left;padding:8px 10px;background:var(--surface);font-size:12px;color:var(--text-muted);position:sticky;top:0}.story-table td{padding:4px 6px;vertical-align:top;border-bottom:1px solid var(--border)}.story-table .panel-num{width:32px;text-align:center;color:var(--text-muted);font-size:12px}.story-table textarea{width:100%;resize:vertical;min-height:52px}.story-table .sheet-sel{width:100px}.story-table .cell-num{width:50px}.gen-images-layout{display:flex;gap:24px}.gen-images-form{flex:0 0 340px;display:flex;flex-direction:column;gap:14px}.gen-images-grid{flex:1;display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:12px;align-content:start}.image-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;position:relative;box-shadow:0 1px 3px var(--shadow)}.image-card img{width:100%;display:block}.image-card .image-label{padding:6px 8px;font-size:11px;color:var(--text-muted);display:flex;align-items:center;justify-content:space-between}.image-card.generating{opacity:.6}.gen-status{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;background:#ffffffe6;color:var(--text);font-size:12px}.bubble-pos-layout{display:flex;gap:24px;height:calc(100vh - 200px)}.panel-navigator{flex:0 0 200px;display:flex;flex-direction:column;gap:8px;overflow-y:auto}.panel-thumb{border:2px solid var(--border);border-radius:var(--radius);cursor:pointer;overflow:hidden;flex-shrink:0}.panel-thumb.active{border-color:var(--accent)}.panel-thumb .sheet-cell{position:relative;overflow:hidden}.panel-stage{flex:1;display:flex;flex-direction:column;align-items:center;gap:16px;overflow-y:auto}.panel-canvas-wrap{position:relative;display:inline-block;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;-webkit-user-select:none;user-select:none}.bubble-overlay{position:absolute;background:#fff;color:#111;border-radius:12px;padding:8px 14px;font-size:18px;font-weight:600;max-width:200px;cursor:grab;box-shadow:0 2px 12px #00000026;line-height:1.3;white-space:pre-wrap}.bubble-overlay:active{cursor:grabbing}.bubble-controls{width:100%;max-width:520px;display:flex;flex-direction:column;gap:10px}.position-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:4px;width:160px}.pos-btn{padding:4px;font-size:11px;background:var(--surface);color:var(--text)}.pos-btn.active{background:var(--accent);color:#fff}.tail-btns,.translation-chips{display:flex;flex-wrap:wrap;gap:6px}.word-chip{padding:3px 10px;background:var(--surface2);border-radius:20px;font-size:12px;cursor:pointer;border:1px solid transparent}.word-chip.has-translation{border-color:var(--accent2)}.exercises-layout{display:flex;gap:20px}.parts-config{flex:0 0 240px}.exercise-editors{flex:1;display:flex;flex-direction:column;gap:20px}.exercise-block{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:14px;box-shadow:0 1px 3px var(--shadow)}.exercise-block h3{margin-bottom:10px;font-size:14px;color:var(--accent2)}.ex-row{display:flex;gap:8px;align-items:flex-start;margin-bottom:6px}.ex-row input,.ex-row textarea,.ex-row select{flex:1}.row-actions{display:flex;gap:4px}.empty-state{display:flex;align-items:center;justify-content:center;height:60vh;color:var(--text-muted);font-size:16px}.section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}.section-header h3{font-size:14px;color:var(--accent2)}.spinner{animation:spin 1s linear infinite;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}.error-text{color:#e94560;font-size:12px}.success-text{color:#4caf50;font-size:12px}.comic-panel{position:relative;width:320px;margin:20px auto 0;border-radius:2px;overflow:visible;user-select:none;-webkit-user-select:none;line-height:0;padding:12px;background:#fff}.comic-panel-image{width:100%;display:block;max-height:420px;object-fit:contain;border-radius:9px}.comic-bubble-wrapper{position:absolute;max-width:58%;z-index:10;cursor:grab}.comic-bubble-wrapper:active{cursor:grabbing}.comic-bubble{color:#000;position:relative;background:#fffef0;border:2.5px solid #1a1a1a;border-radius:16px;padding:8px 10px;font-family:Arial,Helvetica Neue,Helvetica,sans-serif;font-size:20px;line-height:1.45;text-align:center;box-shadow:2px 2px #0003;white-space:normal;word-break:break-word}.comic-bubble--bottom-left:before{content:"";position:absolute;bottom:-20px;left:20px;width:0;height:0;border-top:20px solid #1a1a1a;border-right:18px solid transparent}.comic-bubble--bottom-left:after{content:"";position:absolute;bottom:-16px;left:22px;width:0;height:0;border-top:16px solid #fffef0;border-right:14px solid transparent}.comic-bubble--bottom-right:before{content:"";position:absolute;bottom:-20px;right:20px;width:0;height:0;border-top:20px solid #1a1a1a;border-left:18px solid transparent}.comic-bubble--bottom-right:after{content:"";position:absolute;bottom:-16px;right:22px;width:0;height:0;border-top:16px solid #fffef0;border-left:14px solid transparent}.comic-bubble--top-left:before{content:"";position:absolute;top:-20px;left:20px;width:0;height:0;border-bottom:20px solid #1a1a1a;border-right:18px solid transparent}.comic-bubble--top-left:after{content:"";position:absolute;top:-16px;left:22px;width:0;height:0;border-bottom:16px solid #fffef0;border-right:14px solid transparent}.comic-bubble--top-right:before{content:"";position:absolute;top:-20px;right:20px;width:0;height:0;border-bottom:20px solid #1a1a1a;border-left:18px solid transparent}.comic-bubble--top-right:after{content:"";position:absolute;top:-16px;right:22px;width:0;height:0;border-bottom:16px solid #fffef0;border-left:14px solid transparent}.comic-bubble--bottom-center:before{content:"";position:absolute;bottom:-20px;left:50%;transform:translate(-50%);width:0;height:0;border-top:20px solid #1a1a1a;border-left:9px solid transparent;border-right:9px solid transparent}.comic-bubble--bottom-center:after{content:"";position:absolute;bottom:-16px;left:50%;transform:translate(-50%);width:0;height:0;border-top:16px solid #fffef0;border-left:7px solid transparent;border-right:7px solid transparent}.comic-bubble--top-center:before{content:"";position:absolute;top:-20px;left:50%;transform:translate(-50%);width:0;height:0;border-bottom:20px solid #1a1a1a;border-left:9px solid transparent;border-right:9px solid transparent}.comic-bubble--top-center:after{content:"";position:absolute;top:-16px;left:50%;transform:translate(-50%);width:0;height:0;border-bottom:16px solid #fffef0;border-left:7px solid transparent;border-right:7px solid transparent}.comic-bubble--none:before,.comic-bubble--none:after{display:none}.comic-bubble--tail-reverse.comic-bubble--bottom-left:before{border-right:none;border-left:18px solid transparent}.comic-bubble--tail-reverse.comic-bubble--bottom-left:after{border-right:none;border-left:14px solid transparent}.comic-bubble--tail-reverse.comic-bubble--bottom-right:before{border-left:none;border-right:18px solid transparent}.comic-bubble--tail-reverse.comic-bubble--bottom-right:after{border-left:none;border-right:14px solid transparent}.comic-bubble--tail-reverse.comic-bubble--top-left:before{border-right:none;border-left:18px solid transparent}.comic-bubble--tail-reverse.comic-bubble--top-left:after{border-right:none;border-left:14px solid transparent}.comic-bubble--tail-reverse.comic-bubble--top-right:before{border-left:none;border-right:18px solid transparent}.comic-bubble--tail-reverse.comic-bubble--top-right:after{border-left:none;border-right:14px solid transparent}.comic-bubble--multi-tail:before,.comic-bubble--multi-tail:after{display:none}.comic-tail{position:static}.comic-tail--bottom-left:before{content:"";position:absolute;bottom:-20px;left:20px;width:0;height:0;border-top:20px solid #1a1a1a;border-right:18px solid transparent}.comic-tail--bottom-left:after{content:"";position:absolute;bottom:-16px;left:22px;width:0;height:0;border-top:16px solid #fffef0;border-right:14px solid transparent}.comic-tail--bottom-right:before{content:"";position:absolute;bottom:-20px;right:20px;width:0;height:0;border-top:20px solid #1a1a1a;border-left:18px solid transparent}.comic-tail--bottom-right:after{content:"";position:absolute;bottom:-16px;right:22px;width:0;height:0;border-top:16px solid #fffef0;border-left:14px solid transparent}.comic-tail--top-left:before{content:"";position:absolute;top:-20px;left:20px;width:0;height:0;border-bottom:20px solid #1a1a1a;border-right:18px solid transparent}.comic-tail--top-left:after{content:"";position:absolute;top:-16px;left:22px;width:0;height:0;border-bottom:16px solid #fffef0;border-right:14px solid transparent}.comic-tail--top-right:before{content:"";position:absolute;top:-20px;right:20px;width:0;height:0;border-bottom:20px solid #1a1a1a;border-left:18px solid transparent}.comic-tail--top-right:after{content:"";position:absolute;top:-16px;right:22px;width:0;height:0;border-bottom:16px solid #fffef0;border-left:14px solid transparent}.comic-tail--bottom-center:before{content:"";position:absolute;bottom:-20px;left:50%;transform:translate(-50%);width:0;height:0;border-top:20px solid #1a1a1a;border-left:9px solid transparent;border-right:9px solid transparent}.comic-tail--bottom-center:after{content:"";position:absolute;bottom:-16px;left:50%;transform:translate(-50%);width:0;height:0;border-top:16px solid #fffef0;border-left:7px solid transparent;border-right:7px solid transparent}.comic-tail--top-center:before{content:"";position:absolute;top:-20px;left:50%;transform:translate(-50%);width:0;height:0;border-bottom:20px solid #1a1a1a;border-left:9px solid transparent;border-right:9px solid transparent}.comic-tail--top-center:after{content:"";position:absolute;top:-16px;left:50%;transform:translate(-50%);width:0;height:0;border-bottom:16px solid #fffef0;border-left:7px solid transparent;border-right:7px solid transparent}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;display:flex;align-items:center;justify-content:center;z-index:10000;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}.modal-content{background:var(--surface);border:2px solid var(--border);border-radius:12px;padding:24px;max-width:500px;width:90%;box-shadow:0 10px 40px #0000004d;animation:modalFadeIn .2s ease-out}@keyframes modalFadeIn{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}.modal-content h2{margin:0 0 16px;font-size:20px;color:var(--text)}.modal-content p{margin:0 0 12px;line-height:1.5;color:var(--text)}.error-modal{border-color:#e94560}.error-modal h2{color:#e94560}.error-message{padding:12px;background:#e945601a;border:1px solid rgba(233,69,96,.3);border-radius:6px;font-family:Monaco,Courier New,monospace;font-size:13px;white-space:pre-wrap;word-break:break-word}.warning-modal{border-color:#f39c12}.warning-modal h2{color:#f39c12}.warning-note{padding:10px;background:#f39c121a;border-left:3px solid #f39c12;border-radius:4px;font-size:14px;font-weight:500}.modal-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:20px}.btn-secondary{padding:8px 16px;background:var(--surface2);color:var(--text);border:1px solid var(--border);border-radius:6px;font-size:14px;cursor:pointer;transition:all .15s}.btn-secondary:hover{background:var(--border)}.spreadsheet-grid{width:100%;overflow:auto}.spreadsheet-table{width:100%;border-collapse:collapse;background:var(--surface)}.spreadsheet-table th{text-align:left;padding:10px 12px;background:var(--surface);font-size:12px;color:var(--text-muted);font-weight:600;position:sticky;top:0;z-index:20;border-bottom:2px solid var(--border);white-space:nowrap}.spreadsheet-table tbody{background:var(--surface)}.spreadsheet-table tr{transition:background-color .1s}.spreadsheet-table tr.dragging{opacity:.5}.spreadsheet-table tbody.dragging-over{background:var(--surface2)}.spreadsheet-cell{padding:4px 8px;vertical-align:top;border-bottom:1px solid var(--border);border-right:1px solid var(--border);outline:none;transition:all .1s;position:relative;height:100px}.spreadsheet-cell:last-child{border-right:none}.spreadsheet-cell.focused{box-shadow:inset 0 0 0 2px var(--border-focus);background:#3b82f60d}.spreadsheet-cell.editing{background:var(--surface)}.spreadsheet-cell textarea,.spreadsheet-cell input{width:100%;background:transparent;border:none;outline:none;resize:none;height:100%;padding:4px;font-family:var(--font);font-size:13px;color:var(--text);box-sizing:border-box}.spreadsheet-cell textarea:focus,.spreadsheet-cell input:focus{border:none;box-shadow:none}.drag-handle{cursor:grab;color:var(--text-muted);display:flex;align-items:center;justify-content:center;width:100%;height:100%;padding:8px;font-size:18px;-webkit-user-select:none;user-select:none}.drag-handle:hover{color:var(--text);background:var(--surface2)}.drag-handle:active{cursor:grabbing}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg: #f5f5f5;--surface: #ffffff;--surface2: #f0f0f0;--accent: #e94560;--accent2: #f5a623;--text: #2c3e50;--text-muted: #7f8c8d;--border: #dde2e8;--border-focus: #3b82f6;--shadow: rgba(0, 0, 0, .08);--radius: 8px;--font: "Segoe UI", system-ui, sans-serif}body{background:var(--bg);color:var(--text);font-family:var(--font);font-size:14px;min-height:100vh}button{cursor:pointer;border:none;border-radius:var(--radius);padding:6px 14px;font-size:13px;font-family:var(--font);transition:opacity .15s}button:hover{opacity:.85}button:disabled{opacity:.4;cursor:not-allowed}input,textarea,select{background:var(--surface);color:var(--text);border:1px solid var(--border);border-radius:var(--radius);padding:6px 10px;font-family:var(--font);font-size:13px;outline:none;transition:border-color .15s}input:focus,textarea:focus,select:focus{border-color:var(--border-focus);box-shadow:0 0 0 3px #3b82f61a}.btn-primary{background:var(--accent);color:#fff}.btn-secondary{background:var(--surface2);color:var(--text)}.btn-sm{padding:3px 10px;font-size:12px}.btn-icon{background:transparent;padding:4px 8px;font-size:16px;color:var(--text)}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px;box-shadow:0 1px 3px var(--shadow)}label{display:block;margin-bottom:4px;font-size:12px;color:var(--text-muted)}.tag{display:inline-block;background:var(--surface2);border-radius:4px;padding:2px 8px;font-size:11px;margin-right:4px}