body{margin:0;padding:0;font-family:Arial,sans-serif;background:wheat;color:#000}main{text-align:center;padding:20px}h1{margin-bottom:20px;font-weight:700}.input-container{display:flex;justify-content:center;align-items:center;gap:10px}input[type=text]{width:400px;padding:10px;font-size:16px;border-radius:5px;border:2px solid #ff9966;outline:none}.add-btn{width:50px;height:50px;border-radius:50%;border:white;background:red;color:#fff;font-size:24px;cursor:pointer;box-shadow:2px 2px 4px #0006}.container{margin-top:20px}.todo{display:flex;justify-content:space-between;align-items:center;background:#f1f8f4;margin:10px auto;padding:10px 20px;border-radius:10px;width:500px}.todo p{margin:0;font-size:18px}.todo p.completed{text-decoration:line-through;color:gray}.action{display:flex;align-items:center;gap:10px}.delete-btn{background:red;border:none;padding:6px 14px;color:#fff;border-radius:8px;cursor:pointer;font-weight:700}