body {
    font-family: 'Arial', sans-serif;
    background-color: #e9ecef;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.container {
    background-color: #ffffff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    width: 350px;
}

h1 {
    text-align: center;
    color: #343a40;
    margin-bottom: 20px;
}

form {
    display: flex;
    justify-content: space-between;
    margin-bottom: 20px;
}

input[type="text"] {
    flex: 1;
    padding: 10px;
    border: 1px solid #ced4da;
    border-radius: 4px;
    margin-right: 10px;
    font-size: 16px;
}

button {
    padding: 10px 15px;
    border: none;
    background-color: #007bff;
    color: #ffffff;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
}

button:hover {
    background-color: #0056b3;
}

ul {
    list-style-type: none;
    padding: 0;
    margin: 0;
}

li {
    background-color: #f8f9fa;
    padding: 10px;
    border-bottom: 1px solid #dee2e6;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-radius: 4px;
    margin-bottom: 10px;
    transition: background-color 0.3s;
}

li:nth-child(odd) {
    background-color: #e9ecef;
}

li:hover {
    background-color: #dfe4ea;
}

li .btn-delete {
    background-color: #dc3545;
    border: none;
    padding: 5px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    width: 30px;
    height: 30px;
    display: flex;
    justify-content: center;
    align-items: center;
    background-image: url('img/task_alt.svg');
    background-size: 20px 20px;
    background-repeat: no-repeat;
    background-position: center;
}

li .btn-delete:hover {
    background-color: #c82333;
}