: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}}body{font-family:Arial,sans-serif;background:linear-gradient(to bottom,#f0f4f8,#d9e2ec);margin:0;padding:0}.App{max-width:600px;margin:50px auto;background-color:#fffc;padding:30px;border-radius:15px;box-shadow:0 10px 25px #0000001a;text-align:center}h1{color:#333;margin-bottom:20px}.input-area{display:flex;flex-direction:column;gap:10px;margin-bottom:20px}.input-area input,.input-area button{padding:10px;font-size:16px;border-radius:5px;border:1px solid #ccc}.input-area button{background-color:#4caf50;color:#fff;border:none;cursor:pointer;transition:.3s}.input-area button:hover{background-color:#45a049}ul{list-style:none;padding:0}.todo-item{background-color:#f7f9fc;margin-bottom:15px;padding:15px;border-radius:10px;display:flex;justify-content:space-between;align-items:center;opacity:0;transform:translateY(-10px);animation:fadeIn .3s forwards}@keyframes fadeIn{to{opacity:1;transform:translateY(0)}}.todo-info h3{margin:0;color:#000}.todo-info p{margin:5px 0 0;font-size:14px;color:#555}.todo-info small{display:block;margin-top:5px;color:#888}.todo-buttons{display:flex;gap:10px}.complete-btn{background-color:#3498db;color:#fff;border:none;padding:5px 10px;border-radius:5px;cursor:pointer;font-size:16px}.complete-btn:hover{background-color:#2980b9}.delete-btn{background-color:#e74c3c;color:#fff;border:none;padding:5px 10px;border-radius:5px;cursor:pointer;font-size:16px}.delete-btn:hover{background-color:#c0392b}.todo-item.overdue{border-left:5px solid #e74c3c}.todo-item.today{border-left:5px solid #f1c40f}.todo-item.future{border-left:5px solid #2ecc71}.todo-item.completed{border-left:5px solid #3498db}p{margin-top:20px;font-weight:700;color:#000}footer{margin-top:30px;padding-top:10px;border-top:1px solid #ccc;color:#555;font-size:14px}