:root{--primary: #ffdd00;--secondary: #ff0055;--bg-dark: #120024;--text: #ffffff}body{margin:0;overflow:hidden;background-color:var(--bg-dark);font-family:Inter,sans-serif;color:var(--text)}canvas{display:block;position:absolute;top:0;left:0;z-index:0}#ui{position:absolute;top:20px;left:20px;z-index:10;background:#0000004d;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:20px;border-radius:12px;border:1px solid rgba(255,255,255,.1);transition:opacity .3s ease}#ui:hover{opacity:1}h1{margin:0 0 15px;font-size:1.2rem;font-weight:300;letter-spacing:2px;text-transform:uppercase;background:linear-gradient(to right,var(--primary),var(--secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent}.controls{display:flex;gap:10px;align-items:center}input[type=file]{display:none}.btn{background:#ffffff1a;border:1px solid rgba(255,255,255,.2);color:#fff;padding:8px 16px;border-radius:20px;cursor:pointer;font-size:.9rem;transition:all .2s ease;text-transform:uppercase;letter-spacing:1px}.btn:hover{background:#fff3;border-color:#fff6;box-shadow:0 0 10px #ff00554d}.btn:disabled{opacity:.5;cursor:not-allowed}select.btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;padding-right:30px;background-image:url(data:image/svg+xml;charset=US-ASCII,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22292.4%22%20height%3D%22292.4%22%3E%3Cpath%20fill%3D%22%23FFFFFF%22%20d%3D%22M287%2069.4a17.6%2017.6%200%200%200-13-5.4H18.4c-5%200-9.3%201.8-12.9%205.4A17.6%2017.6%200%200%200%200%2082.2c0%205%201.8%209.3%205.4%2012.9l128%20127.9c3.6%203.6%207.8%205.4%2012.8%205.4s9.2-1.8%2012.8-5.4L287%2095c3.5-3.5%205.4-7.8%205.4-12.8%200-5-1.9-9.2-5.5-12.8z%22%2F%3E%3C%2Fsvg%3E);background-repeat:no-repeat;background-position:right 10px center;background-size:10px}select.btn option{background-color:var(--bg-dark);color:var(--text)}.progress-wrapper{margin-top:15px;width:100%;display:flex;flex-direction:column;align-items:center;gap:5px}#progress-bar{-webkit-appearance:none;width:100%;height:6px;background:#fff3;border-radius:3px;outline:none;cursor:pointer}#progress-bar::-webkit-slider-thumb{-webkit-appearance:none;width:16px;height:16px;border-radius:50%;background:var(--secondary);box-shadow:0 0 10px var(--secondary);cursor:pointer;border:2px solid white}#time-display{font-size:.75rem;opacity:.8;font-feature-settings:"tnum";color:var(--primary)}#track-name{margin:10px 0 0;font-size:.8rem;opacity:.7;max-width:250px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}@media(max-width:768px){#ui{inset:auto 20px 20px;padding:15px;background:#0009}h1{font-size:1rem;margin-bottom:10px;text-align:center}.controls{justify-content:center;flex-wrap:wrap}.btn{padding:10px 20px;font-size:1rem}#track-name{text-align:center;max-width:100%;margin-top:15px}}