body{font-family:Arial,sans-serif;background:#f2f2f2;margin:0;padding:0}.todo-container{max-width:700px;margin:auto;padding:2rem;background:#fff;margin-top:3rem;border-radius:8px;box-shadow:0 2px 8px #0000001a}.input-row input,.input-row select{width:100%;padding:.5rem;margin-bottom:1rem}.input-row button{width:100%;padding:.7rem;background-color:#4caf50;color:#fff;border:none;cursor:pointer}.input-row button:hover{background-color:#45a049}.card{background:#f9f9f9;border-left:4px solid #4caf50;padding:1rem;margin-bottom:1rem;border-radius:4px}.card button{margin-right:10px;padding:.3rem .6rem;border:none;cursor:pointer}.card button:hover{opacity:.8}