:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media (prefers-color-scheme: light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}.App{text-align:center}.App-header{background-color:#282c34;padding:20px;color:#fff;min-height:100vh}.add-task{margin:20px 0;display:flex;justify-content:center;gap:10px}.add-task input{padding:10px;font-size:16px;border:1px solid #ccc;border-radius:4px;width:300px}.add-task button{padding:10px 20px;font-size:16px;background-color:#61dafb;color:#282c34;border:none;border-radius:4px;cursor:pointer}.add-task button:disabled{opacity:.5;cursor:not-allowed}.filter-tabs{margin:20px 0;display:flex;justify-content:center;gap:10px}.filter-tabs button{padding:10px 20px;background-color:#4a4a4a;color:#fff;border:none;border-radius:4px;cursor:pointer}.filter-tabs button.active{background-color:#61dafb;color:#282c34}.task-list{max-width:600px;margin:0 auto}.task-item{display:flex;align-items:center;gap:10px;padding:10px;margin:5px 0;background-color:#3a3a3a;border-radius:4px}.task-item.completed .task-title{text-decoration:line-through;opacity:.6}.task-title{flex:1;text-align:left}.delete-btn{background-color:#f44336;color:#fff;border:none;padding:5px 10px;border-radius:4px;cursor:pointer}.delete-btn:hover{background-color:#d32f2f}