body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f9;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.todo-container {
    background-color: rgba(243, 241, 234, 0.843);
    padding: 20px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    width: 300px;
}

h1 {
    text-align: center;
    color: #333;
}

input {
    width: calc(100% - 24px);
    padding: 10px;
    margin-bottom: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
}

button {
    padding: 10px;
    width: 100%;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

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

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

li {
    background-color: #f9f9f9;
    margin: 5px 0;
    padding: 10px;
    border-radius: 5px;
    display: flex;
    justify-content: space-between;
}

li.completed {
    text-decoration: line-through;
    opacity: 0.7;
}

.delete-btn {
    background-color: #ff4d4d;
    border: none;
    color: white;
    padding: 2px;
    cursor: pointer;
}

.delete-btn:hover {
    background-color: #cc0000;
}