:root{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#213547;background-color:#fff;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{margin:0;padding:0}body{margin:0;min-width:320px;min-height:100vh;background:linear-gradient(to bottom,#f5f7fa,#c3cfe2)}#root{min-height:100vh;padding:2rem 0}@media (prefers-color-scheme: dark){:root{color:#f0f0f0;background-color:#242424}body{background:linear-gradient(to bottom,#1a1a2e,#16213e)}}*{box-sizing:border-box}.app-container{max-width:800px;margin:0 auto;padding:2rem;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif}h1{text-align:center;color:#2c3e50;margin-bottom:2rem;font-size:2.5rem}h2{color:#34495e;margin-bottom:1.5rem;font-size:1.5rem;border-bottom:2px solid #3498db;padding-bottom:.5rem}.status-section{background:linear-gradient(135deg,#667eea,#764ba2);border-radius:12px;padding:2rem;margin-bottom:2rem;color:#fff;box-shadow:0 4px 6px #0000001a}.playback-info{display:flex;justify-content:space-around;margin-bottom:1.5rem;gap:1rem}.time-display,.bpm-display,.interval-display,.beat-counter{text-align:center;flex:1}.time-display{font-size:2rem;font-weight:700;font-variant-numeric:tabular-nums}.bpm-display{font-size:3rem;font-weight:700;font-variant-numeric:tabular-nums}.interval-display,.beat-counter{font-size:1.2rem;opacity:.9}.progress-bar{background:#fff3;border-radius:10px;height:20px;overflow:hidden;margin-bottom:1rem}.progress-fill{background:linear-gradient(90deg,#48c6ef,#6f86d6);height:100%;transition:width .1s linear;border-radius:10px}.range-display{text-align:center;font-size:1.2rem;font-weight:500}.controls-section{display:flex;gap:1rem;justify-content:center;margin-bottom:2rem}.play-button,.stop-button{padding:1rem 2rem;font-size:1.2rem;border:none;border-radius:8px;cursor:pointer;font-weight:600;transition:all .3s ease;box-shadow:0 2px 4px #0000001a}.play-button{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;min-width:120px}.play-button:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 4px 8px #0003}.play-button:disabled{background:#95a5a6;cursor:not-allowed;opacity:.6}.stop-button{background:#e74c3c;color:#fff}.stop-button:hover{background:#c0392b;transform:translateY(-2px);box-shadow:0 4px 8px #0003}.max-reached{text-align:center;background:#f39c12;color:#fff;padding:1rem;border-radius:8px;margin-bottom:2rem;font-weight:600;font-size:1.1rem;animation:pulse 2s infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.7}}.settings-section{background:#f8f9fa;border-radius:12px;padding:2rem;box-shadow:0 2px 4px #0000000d}.settings-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.5rem}.setting-group{display:flex;flex-direction:column;gap:.5rem}.setting-group label{font-weight:600;color:#2c3e50;font-size:.9rem}.setting-group input{padding:.75rem;border:2px solid #dfe6e9;border-radius:6px;font-size:1rem;transition:all .3s ease;background:#fff;color:#2c3e50}.setting-group input:focus{outline:none;border-color:#667eea;box-shadow:0 0 0 3px #667eea1a}.setting-group input:disabled{background:#ecf0f1;cursor:not-allowed;opacity:.7}@media (max-width: 768px){.app-container{padding:1rem}h1{font-size:2rem}.playback-info{flex-direction:column;gap:1rem}.bpm-display{font-size:2.5rem}.controls-section{flex-direction:column}.play-button,.stop-button{width:100%}.settings-grid{grid-template-columns:1fr}}