:root{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#1a1a1a;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box}body{margin:0;display:flex;align-items:center;justify-content:center;min-width:320px;min-height:100vh;background-color:#1a1a1a}#app{width:100%;max-width:600px;padding:2rem}.timer-container{text-align:center}h1{font-size:2rem;font-weight:300;margin:0 0 3rem;color:#e0e0e0;letter-spacing:.5px}.time-display{font-size:5rem;font-weight:200;font-variant-numeric:tabular-nums;letter-spacing:.05em;margin:3rem 0;color:#fff;font-family:Courier New,monospace}.controls{display:flex;gap:1rem;justify-content:center;margin-top:3rem}.btn{border-radius:8px;border:2px solid transparent;padding:1rem 2.5rem;font-size:1.1rem;font-weight:500;font-family:inherit;cursor:pointer;transition:all .3s ease;min-width:120px}.btn-start{background-color:#2d7a3e;color:#fff;border-color:#2d7a3e}.btn-start:hover:not(:disabled){background-color:#3a9b50;border-color:#3a9b50}.btn-stop{background-color:#b83232;color:#fff;border-color:#b83232}.btn-stop:hover:not(:disabled){background-color:#d63e3e;border-color:#d63e3e}.btn-reset{background-color:#404040;color:#fff;border-color:#404040}.btn-reset:hover{background-color:#555;border-color:#555}.btn:disabled{opacity:.5;cursor:not-allowed}.btn:focus,.btn:focus-visible{outline:3px solid rgba(100,108,255,.5);outline-offset:2px}@media (prefers-color-scheme: light){:root{color:#213547;background-color:#fff}body{background-color:#f5f5f5}h1{color:#2c2c2c}.time-display{color:#000}.btn-start{background-color:#34a853;border-color:#34a853}.btn-start:hover:not(:disabled){background-color:#2d8e47;border-color:#2d8e47}.btn-stop{background-color:#ea4335;border-color:#ea4335}.btn-stop:hover:not(:disabled){background-color:#d33527;border-color:#d33527}.btn-reset{background-color:#e0e0e0;color:#2c2c2c;border-color:#e0e0e0}.btn-reset:hover{background-color:#d0d0d0;border-color:#d0d0d0}}@media (max-width: 640px){.time-display{font-size:3.5rem}.controls{flex-direction:column;align-items:stretch}.btn{width:100%}h1{font-size:1.5rem}}