.tab-group{display:flex;border-bottom:1px solid var(--border-color);margin-bottom:20px}.tab-btn{flex:1;padding:12px;background:none;border:none;font-size:15px;font-weight:700;color:var(--text-secondary);cursor:pointer;border-bottom:2px solid transparent;transition:all .2s ease}.tab-btn.active{color:var(--primary-color);border-bottom-color:var(--primary-color)}.form-group{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}.form-label{font-size:14px;font-weight:700;color:var(--text-secondary)}.form-input{width:100%;padding:12px;font-size:16px;border:1px solid var(--border-color);border-radius:var(--radius-md);outline:none}.form-input:focus{border-color:var(--primary-color)}.instruction-box{background-color:#f4f6f9;border-radius:var(--radius-md);padding:16px;margin-bottom:20px;font-size:13px;color:var(--text-secondary);line-height:1.6}.instruction-box code{background-color:#e5e5ea;padding:2px 6px;border-radius:4px;font-family:monospace}.csv-upload-area{border:2px dashed var(--border-color);border-radius:var(--radius-md);padding:40px 20px;text-align:center;cursor:pointer;transition:all .2s ease}.csv-upload-area:hover{border-color:var(--primary-color);background-color:var(--primary-light)}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;border-bottom:1px solid var(--border-color)}.modal-title{font-size:22px;font-weight:700}.modal-close-btn{background:#f2f2f7;border:none;font-size:14px;font-weight:600;padding:8px 16px;border-radius:var(--radius-full);cursor:pointer;color:var(--text-primary)}.modal-close-btn:hover{background:#e5e5ea}.modal-body{padding:24px;overflow-y:auto;display:flex;flex-direction:column;gap:20px;max-height:70vh}.search-input-wrapper{position:relative;margin-bottom:8px}.search-icon{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--text-muted)}.search-input{width:100%;padding:12px 14px 12px 42px;font-size:15px;background-color:#f2f2f7;border:none;border-radius:var(--radius-md);outline:none}.search-input:focus{background-color:#e5e5ea}.lesson-list-container{display:flex;flex-direction:column;gap:12px}.lesson-item-card{background:#fff;border:1px solid var(--border-color);border-radius:var(--radius-md);padding:16px 20px;display:flex;justify-content:space-between;align-items:center;transition:all .15s ease}.lesson-item-card:hover{border-color:var(--primary-color);background-color:var(--primary-light)}.lesson-item-info{cursor:pointer;flex:1}.lesson-item-name{font-size:16px;font-weight:700;color:var(--text-primary);margin-bottom:4px}.lesson-item-count{font-size:13px;color:var(--text-muted)}.lesson-item-actions{display:flex;gap:8px}.btn-sm{padding:8px 12px;font-size:13px;font-weight:600;border-radius:var(--radius-sm);border:1px solid var(--border-color);background:#fff;cursor:pointer;display:inline-flex;align-items:center;gap:4px}.btn-sm:hover{background:#f2f2f7}.btn-sm.danger{color:var(--error-color);border-color:#ff3b3033}.btn-sm.danger:hover{background:var(--error-bg)}.btn-sm.primary{background-color:var(--primary-color);color:#fff;border-color:var(--primary-color)}.btn-sm.primary:hover{background-color:var(--primary-hover)}.word-items-list{display:flex;flex-direction:column;gap:10px}.word-item-card{background:#f8f9fa;border-radius:var(--radius-md);padding:16px;display:flex;justify-content:space-between;align-items:flex-start;border:1px solid transparent}.word-item-card:hover{border-color:var(--border-color)}.word-item-details{flex:1;padding-right:12px}.word-item-en{font-size:17px;font-weight:700;color:var(--text-primary)}.word-item-ja{font-size:15px;color:var(--text-secondary);margin-top:2px}.word-item-ex{font-size:13px;color:var(--text-muted);margin-top:6px;line-height:1.4}.btn-back-header{display:flex;align-items:center;gap:12px;margin-bottom:12px}.btn-back-text{font-size:15px;font-weight:700;color:var(--primary-color);background:none;border:none;cursor:pointer;padding:0;display:inline-flex;align-items:center;gap:4px}.home-header{text-align:center;margin-bottom:28px}.home-title{font-size:32px;font-weight:800;letter-spacing:-.5px;margin-bottom:4px}.home-subtitle{font-size:14px;color:var(--text-secondary);margin-bottom:12px}.top-actions-row{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:28px}.section-title{font-size:18px;font-weight:700;margin-bottom:14px}.mode-list{display:flex;flex-direction:column;gap:12px;margin-bottom:28px}.mode-card{display:flex;align-items:center;position:relative;padding:16px 50px 16px 20px;background:#fff;border:2px solid transparent;border-radius:var(--radius-md);box-shadow:var(--shadow-sm);cursor:pointer;transition:all .2s ease;text-align:left;width:100%}.mode-card:hover{transform:translateY(-1px);box-shadow:var(--shadow-md)}.mode-card.selected{border-color:var(--primary-color);background-color:#fff}.mode-left{display:flex;align-items:center;gap:16px}.mode-icon-box{width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.mode-icon-box.purple{background-color:#f3e8ff;color:#a855f7}.mode-icon-box.blue{background-color:#e0f2fe;color:#0284c7}.mode-icon-box.cyan{background-color:#e0f7fa;color:#00acc1}.mode-icon-box.orange{background-color:#ffedd5;color:#ea580c}.mode-icon-box.indigo{background-color:#e0e7ff;color:#4f46e5}.mode-title-text{font-size:16px;font-weight:700;color:var(--text-primary);margin-bottom:2px}.mode-desc-text{font-size:13px;color:var(--text-muted)}.check-circle-icon{position:absolute;right:20px;top:50%;transform:translateY(-50%);width:22px;height:22px;border-radius:50%;background-color:var(--primary-color);color:#fff;display:flex;align-items:center;justify-content:center;flex-shrink:0}.count-selector-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:32px}.count-btn{padding:14px 0;background-color:#fff;border:1px solid var(--border-color);border-radius:var(--radius-md);font-size:16px;font-weight:700;color:var(--text-primary);cursor:pointer;transition:all .2s ease}.count-btn.selected{background-color:var(--primary-color);color:#fff;border-color:var(--primary-color);box-shadow:0 4px 12px #007aff33}.lesson-selector-container{margin-bottom:24px}.lesson-select{width:100%;padding:14px;font-size:16px;font-weight:600;border:1px solid var(--border-color);border-radius:var(--radius-md);background-color:#fff;outline:none;cursor:pointer;-moz-appearance:none;appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml;charset=UTF-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%236c6c70' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;background-size:18px}.quiz-question-card{background-color:var(--card-bg);border-radius:var(--radius-lg);padding:32px 24px;text-align:center;box-shadow:var(--shadow-sm);margin-bottom:24px;border:1px solid rgba(0,0,0,.04)}.quiz-instruction{font-size:var(--font-subheadline);color:var(--text-secondary);margin-bottom:16px}.quiz-main-term{font-size:var(--font-quiz-large);font-weight:700;color:var(--text-primary);margin-bottom:16px;letter-spacing:-.5px}.quiz-example-sentence{font-size:15px;font-style:italic;color:var(--text-muted);line-height:1.4}.options-grid{display:flex;flex-direction:column;gap:12px;margin-bottom:32px}.option-card{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;background-color:#fff;border:2px solid #e5e5ea;border-radius:var(--radius-md);font-size:var(--font-title-3);font-weight:500;color:var(--text-primary);cursor:pointer;transition:all .2s ease;text-align:left;width:100%}.option-card:hover:not(:disabled){border-color:var(--primary-color);background-color:var(--primary-light)}.option-card.correct{background-color:var(--success-bg);border-color:var(--success-border);color:#1b5e20;font-weight:600}.option-card.incorrect{background-color:var(--error-bg);border-color:var(--error-border);color:#b71c1c;font-weight:600}.option-card.dimmed{opacity:.5}.option-icon{display:flex;align-items:center;justify-content:center;width:24px;height:24px;border-radius:50%}.option-icon.correct-icon{background-color:var(--success-color);color:#fff}.option-icon.incorrect-icon{background-color:var(--error-color);color:#fff}.btn-green{background-color:#34c759;color:#fff;box-shadow:0 4px 12px #34c75940}.btn-green:hover{background-color:#2fb350}.handwriting-container{display:flex;flex-direction:column;gap:12px;width:100%;margin-top:16px}.handwriting-header{display:flex;justify-content:space-between;align-items:center;font-size:14px;color:var(--text-secondary);flex-wrap:wrap;gap:8px}.pencil-instruction{display:flex;align-items:center;gap:6px}.mode-toggle-group{display:flex;align-items:center;gap:8px}.mode-toggle-btn{background:#e5e5ea;border:none;font-size:12px;font-weight:600;padding:4px 10px;border-radius:var(--radius-full);color:var(--text-secondary);cursor:pointer;transition:all .2s ease}.mode-toggle-btn.active{background:var(--primary-color);color:#fff}.clear-btn{background:none;border:none;color:#ff3b30;font-size:14px;font-weight:500;display:flex;align-items:center;gap:4px;cursor:pointer;padding:4px 8px;border-radius:6px}.clear-btn:hover{background-color:#ffefee}.canvas-wrapper{position:relative;width:100%;height:220px;background-color:#fff;border:2px solid #b3d7ff;border-radius:var(--radius-md);overflow:hidden;box-shadow:inset 0 2px 4px #00000005;touch-action:none;user-select:none;-webkit-user-select:none}.canvas-placeholder{position:absolute;top:16px;left:16px;color:#c7c7cc;font-size:16px;pointer-events:none;z-index:1}.drawing-canvas{position:absolute;top:0;left:0;width:100%;height:100%;z-index:2}.scribble-textarea{position:absolute;top:0;left:0;width:100%;height:100%;z-index:3;border:none;outline:none;resize:none;font-size:24px;padding:16px;background:transparent;color:transparent;caret-color:transparent!important;line-height:1.4;touch-action:none;-webkit-user-modify:read-write-plaintext-only!important;-webkit-text-decorations-in-effect:none!important;text-decoration:none!important;border-bottom:none!important}.scribble-textarea:focus{outline:none}.recognition-result-section{display:flex;flex-direction:column;gap:8px;margin-top:8px}.recognition-label{font-size:13px;color:var(--text-secondary)}.recognition-input-wrapper{position:relative;display:flex;align-items:center}.recognition-input-icon{position:absolute;left:14px;color:var(--primary-color);font-size:16px;font-weight:600}.recognition-input{width:100%;padding:14px 14px 14px 40px;font-size:18px;font-weight:500;border:1px solid var(--border-color);border-radius:var(--radius-md);background-color:#fff;color:var(--text-primary);outline:none;transition:border-color .2s ease;-webkit-user-modify:read-write-plaintext-only;-webkit-text-decorations-in-effect:none;text-decoration:none!important}.recognition-input:focus{border-color:var(--primary-color);box-shadow:0 0 0 3px #007aff26}.handwriting-question-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;min-height:28px}.hint-btn{background:none;border:none;color:#ff9500;font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:4px;cursor:pointer}.sentence-highlight{color:var(--primary-color);font-size:var(--font-quiz-blank);font-weight:700;margin:12px 0;line-height:1.4}.handwriting-question-header+.quiz-question-card .quiz-main-term{font-size:var(--font-quiz-hand)}.blank-underline{display:inline-block;min-width:80px;border-bottom:2px solid var(--primary-color);text-align:center}.feedback-message{margin-top:16px;padding:14px;border-radius:var(--radius-md);font-size:15px;font-weight:600;text-align:center}.feedback-message.error{background-color:var(--error-bg);color:var(--error-color);border:1px solid var(--error-border)}.feedback-message.success{background-color:var(--success-bg);color:var(--success-color);border:1px solid var(--success-border)}.quiz-top-bar{display:flex;align-items:center;justify-content:space-between;padding:16px 0;margin-bottom:12px;position:relative}.quiz-close-btn{background:none;border:none;color:var(--text-secondary);cursor:pointer;padding:8px;border-radius:50%}.quiz-close-btn:hover{background-color:#e5e5ea}.quiz-progress-text{font-size:16px;font-weight:600;color:var(--text-secondary)}.quiz-progress-bar-bg{width:100%;height:4px;background-color:#e5e5ea;border-radius:2px;margin-bottom:20px;overflow:hidden}.quiz-progress-bar-fill{height:100%;background-color:var(--primary-color);transition:width .3s ease}.quiz-step-badge-container{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;min-height:28px}.result-container{max-width:1180px;margin:0 auto;padding:24px 24px 48px;text-align:center;display:flex;flex-direction:column;height:calc(100vh - 40px);max-height:900px}.result-header-group{flex-shrink:0}.result-trophy{font-size:80px;margin-bottom:8px;display:inline-block}.result-title{font-size:34px;font-weight:800;color:var(--text-primary);margin-bottom:8px}.result-subtitle{font-size:var(--font-subheadline);color:var(--text-muted);margin-bottom:20px}.result-stats-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:28px;flex-shrink:0}.stat-card{background:#fff;border-radius:var(--radius-lg);padding:18px;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;align-items:center;justify-content:center}.stat-label{font-size:var(--font-caption);font-weight:600;color:var(--text-muted);margin-bottom:6px}.stat-value-green{font-size:28px;font-weight:800;color:#34c759}.stat-value-blue{font-size:28px;font-weight:800;color:#007aff}.result-list-section{text-align:left;margin-bottom:20px;flex:1;display:flex;flex-direction:column;min-height:300px;overflow:hidden}.result-list-title{font-size:15px;font-weight:700;color:var(--text-primary);margin-bottom:12px;flex-shrink:0}.result-word-list{display:flex;flex-direction:column;gap:8px;overflow-y:auto;flex:1;min-height:300px;padding-right:4px}.result-word-item{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;background:#fff;border-radius:var(--radius-md);box-shadow:0 1px 3px #00000008}.result-word-left{display:flex;align-items:center;gap:14px}.result-icon-check{width:22px;height:22px;border-radius:50%;background-color:#34c759;color:#fff;display:flex;align-items:center;justify-content:center;flex-shrink:0}.result-icon-cross{width:22px;height:22px;border-radius:50%;background-color:#ff3b30;color:#fff;display:flex;align-items:center;justify-content:center;flex-shrink:0}.result-word-en{font-size:17px;font-weight:700;color:var(--text-primary)}.result-word-ja{font-size:13px;color:var(--text-secondary)}.result-step-tag{background-color:#e5e5ea;color:var(--text-secondary);font-size:12px;font-weight:600;padding:4px 12px;border-radius:var(--radius-full)}.result-footer-btn{flex-shrink:0;margin-top:auto}