body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f9;
    color: #333;
    margin: 0;
    padding: 20px;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    background-color: #fff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

h1 {
    text-align: center;
    margin-bottom: 20px;
}

.filters {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
}

.filter-btn {
    background-color: #e0e0e5;
    color: #333;
    border: none;
    padding: 10px 20px;
    cursor: pointer;
    margin-right: 10px;
    transition: background-color 0.3s;
}

.filter-btn.active {
    background-color: #6c5ce7;
    color: #fff;
}

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

input[type="text"] {
    flex: 1;
    padding: 10px;
    border: none;
    background-color: #e0e0e5;
    border-radius: 4px;
}

input[type="date"] {
    width: 150px;
    padding: 10px;
    border: none;
    background-color: #e0e0e5;
    border-radius: 4px;
}

button {
    padding: 10px 20px;
    background-color: #6c5ce7;
    color: #fff;
    border: none;
    cursor: pointer;
    border-radius: 4px;
}

button:hover {
    background-color: #5a4fcf;
}

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

li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
    padding: 10px;
    background-color: #e0e0e5;
    border-radius: 4px;
}

.task-status {
    font-weight: bold;
}

.task-status.completed {
    color: #28a745;
}

.task-status.incomplete {
    color: #dc3545;
}

button.delete,
button.update-status {
    background-color: transparent;
    border: none;
    cursor: pointer;
    color: #6c5ce7;
}

button.delete:hover,
button.update-status:hover {
    text-decoration: underline;
}