:root{--primary: #242424;--secondary: rgba(255, 255, 255, .87);font-size:62.5%;font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;color-scheme:light dark;color:var(--secondary);background-color:var(--primary);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media (prefers-color-scheme: light){:root{--primary: #fff;--secondary: #213547}}*{box-sizing:border-box}body{margin:0}.app{width:100%;height:100vh}.header{position:absolute;text-align:center;width:100%;padding:2.4rem}.header .title{font-size:2.4rem;font-weight:700;margin:0}.timer{display:flex;justify-content:center;align-items:center;height:100%;font-size:9.6rem;font-weight:700}.controls{display:flex;justify-content:center;gap:1.6rem;position:absolute;width:100%;bottom:0;text-align:center;padding:2.4rem}.controls button{background-color:var(--secondary);color:var(--primary);font-size:1.6rem;padding:.8rem 1.6rem;height:3.6rem;border-radius:8px;border:0;cursor:pointer}.controls button:hover{opacity:.8}.controls #sound-select{background-color:var(--secondary);color:var(--primary);font-size:1.6rem;padding:.8rem 1.6rem;height:3.6rem;border-radius:8px;border:0;cursor:pointer;-webkit-appearance:none;appearance:none;outline:none;box-shadow:none}