*{margin:0;padding:0;box-sizing:border-box}body{font-family:Hiragino Kaku Gothic ProN,Noto Sans JP,sans-serif;background:#f8f9fa;min-height:100vh}#root{width:100%}.app{max-width:800px;margin:0 auto;padding:2rem;cursor:text}.title{text-align:center;font-size:1.5rem;color:#333;margin-bottom:1.5rem}.sentence-selector{display:flex;gap:.5rem;justify-content:center;margin-bottom:1.5rem;flex-wrap:wrap}.sentence-btn{padding:.4rem 1rem;border:1px solid #ccc;border-radius:6px;background:#fff;cursor:pointer;font-size:.85rem;transition:all .15s}.sentence-btn:hover{background:#e9ecef}.sentence-btn.active{background:#4a90d9;color:#fff;border-color:#4a90d9}.stats-bar{display:flex;gap:1.5rem;justify-content:center;margin-bottom:1.5rem;font-size:.9rem;color:#555}.sentence-display{background:#fff;border:1px solid #ddd;border-radius:8px;padding:1.5rem;margin-bottom:1.5rem;font-size:1.4rem;line-height:2.2;letter-spacing:.05em;min-height:120px;-webkit-user-select:none;user-select:none}.char{position:relative;transition:color .15s}.char.pending{color:#999}.char.correct{color:#2ecc71}.char.incorrect{color:#e74c3c;text-decoration:underline;text-decoration-color:#e74c3c}.char.skipped{color:#f39c12;text-decoration:underline;text-decoration-style:dotted;text-decoration-color:#f39c12}.char.cursor{background:#e8f0fe;border-bottom:3px solid #4a90d9;color:#333}.input-area{display:flex;gap:.75rem;align-items:center;margin-bottom:1.5rem}.typing-input{flex:1;padding:.75rem 1rem;font-size:1.1rem;border:2px solid #ddd;border-radius:8px;outline:none;transition:border-color .15s;font-family:inherit}.typing-input:focus{border-color:#4a90d9}.typing-input:disabled{background:#f0f0f0;cursor:not-allowed}.skip-btn{padding:.75rem 1.2rem;background:#f39c12;color:#fff;border:none;border-radius:8px;cursor:pointer;font-size:.9rem;white-space:nowrap;transition:background .15s}.skip-btn:hover:not(:disabled){background:#e67e22}.skip-btn:disabled{background:#ccc;cursor:not-allowed}.result-panel{background:#fff;border:1px solid #ddd;border-radius:8px;padding:1.5rem;text-align:center}.result-panel h2{font-size:1.3rem;margin-bottom:1rem;color:#333}.result-panel p{margin-bottom:.5rem;font-size:1rem;color:#555}.result-actions{display:flex;gap:1rem;justify-content:center;margin-top:1rem}.action-btn{padding:.6rem 1.5rem;border:none;border-radius:8px;font-size:.95rem;cursor:pointer;transition:background .15s;background:#4a90d9;color:#fff}.action-btn:hover{background:#357abd}