:root{--vt-c-white: #ffffff;--vt-c-white-soft: #f8f8f8;--vt-c-white-mute: #f2f2f2;--vt-c-black: #181818;--vt-c-black-soft: #222222;--vt-c-black-mute: #282828;--vt-c-indigo: #2c3e50;--vt-c-divider-light-1: rgba(60, 60, 60, .29);--vt-c-divider-light-2: rgba(60, 60, 60, .12);--vt-c-divider-dark-1: rgba(84, 84, 84, .65);--vt-c-divider-dark-2: rgba(84, 84, 84, .48);--vt-c-text-light-1: var(--vt-c-indigo);--vt-c-text-light-2: rgba(60, 60, 60, .66);--vt-c-text-dark-1: var(--vt-c-white);--vt-c-text-dark-2: rgba(235, 235, 235, .64)}:root{--color-background: var(--vt-c-white);--color-background-soft: var(--vt-c-white-soft);--color-background-mute: var(--vt-c-white-mute);--color-border: var(--vt-c-divider-light-2);--color-border-hover: var(--vt-c-divider-light-1);--color-heading: var(--vt-c-text-light-1);--color-text: var(--vt-c-text-light-1);--section-gap: 160px}@media (prefers-color-scheme: dark){:root{--color-background: var(--vt-c-black);--color-background-soft: var(--vt-c-black-soft);--color-background-mute: var(--vt-c-black-mute);--color-border: var(--vt-c-divider-dark-2);--color-border-hover: var(--vt-c-divider-dark-1);--color-heading: var(--vt-c-text-dark-1);--color-text: var(--vt-c-text-dark-2)}}*,*:before,*:after{box-sizing:border-box;margin:0;font-weight:400}body{min-height:100vh;color:var(--color-text);background:var(--color-background);transition:color .5s,background-color .5s;line-height:1.6;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;font-size:15px;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#app{max-width:1280px;margin:0 auto;padding:2rem;font-weight:400}a,.green{text-decoration:none;color:#00bd7e;transition:.4s;padding:3px}@media (hover: hover){a:hover{background-color:#00bd7e33}}@media (min-width: 1024px){body{display:flex;place-items:center}#app{display:grid;grid-template-columns:1fr;padding:0 2rem}}:root{--primary-color: #42b883;--secondary-color: #35495e;--background-color: #f0f2f5;--text-color: #333;--border-color: #ddd}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background-color:var(--background-color);color:var(--text-color);margin:0;padding:2rem 0;display:flex;justify-content:center;align-items:center;min-height:100vh}#app-container{width:100%;max-width:800px;background:#fff;border-radius:8px;box-shadow:0 4px 12px #0000001a;padding:2rem}header{text-align:center;border-bottom:1px solid var(--border-color);padding-bottom:1rem;margin-bottom:2rem}h1{color:var(--secondary-color);margin:0}.controls{display:flex;flex-direction:column;gap:1.5rem;margin-bottom:2rem}.file-input{border:1px solid var(--border-color);padding:.5rem;border-radius:4px}.play-button{background-color:var(--primary-color);color:#fff;border:none;padding:.75rem 1.5rem;border-radius:4px;font-size:1rem;cursor:pointer;transition:background-color .2s}.play-button:disabled{background-color:#ccc;cursor:not-allowed}.play-button:hover:not(:disabled){background-color:#36a874}.progress-container{display:flex;align-items:center;gap:1rem}.progress-slider{flex-grow:1;-webkit-appearance:none;appearance:none;width:100%;height:8px;border-radius:4px;background:#efefef;outline:none;opacity:.7;transition:opacity .2s}.progress-slider:hover{opacity:1}.progress-slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:16px;height:16px;border-radius:50%;background:var(--primary-color);cursor:pointer}.progress-slider::-moz-range-thumb{width:16px;height:16px;border-radius:50%;background:var(--primary-color);cursor:pointer}.track-list{display:flex;flex-direction:column;gap:.5rem}.track-item{padding:1rem;border:1px solid var(--border-color);border-radius:4px;cursor:pointer;transition:background-color .2s,border-color .2s}.track-item:hover{background-color:#f9f9f9}.track-item.active{background-color:var(--primary-color);color:#fff;border-color:var(--primary-color)}