body{font-family:Arial;background-color:#f4f4f4;padding:30px;color:#333;background-color:#abd5e8;background-size:cover}.app{max-width:600px;margin:0 auto 300px;background-color:#efefef;padding:20px 30px;border-radius:10px}h1{text-align:center}h2{margin-bottom:10px}p{margin:10px 0}input{box-sizing:border-box}button{background-color:#1b93b4;color:#fff;padding:5px 10px;margin-right:10px;border:none;border-radius:3px;cursor:pointer;opacity:.8;transition:.3s}button:hover{opacity:1}.todo-list{margin-bottom:20px;padding-bottom:20px;border-bottom:1px solid #555}.todo{background-color:#fff;box-shadow:0 0 10px #0000001a;padding:10px;margin-bottom:10px;border-radius:5px;display:flex;justify-content:space-between;align-items:center}.complete{background-color:#35bd35}.remove{background-color:#f75b55}.todo-form{padding-bottom:1.5rem}input,select{padding:5px;margin-bottom:10px;border:1px solid #ddd;border-radius:3px;width:100%}.filter,.search{border-bottom:1px solid #555;margin-bottom:20px;padding-bottom:20px}.filter-options{display:flex;justify-content:space-between;gap:3rem}.filter-options div{flex:1 1 0}