body {
    font-family: Arial, sans-serif;
    background-color: #f0f2f5;
    margin: 0;
    padding: 20px;
}

.container {
    max-width: 800px;
    margin: auto;
    background: #ffffff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

h1, h2 {
    text-align: center;
    color: #333;
    margin-bottom: 20px;
}

form {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 20px;
}

input, textarea, select, button {
    padding: 12px;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 16px;
}

textarea {
    resize: vertical;
    min-height: 100px;
}

button {
    background-color: #007bff;
    color: white;
    border: none;
    cursor: pointer;
    transition: background-color 0.3s;
}

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

select {
    background-color: #fff;
}

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

li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 15px;
    border-bottom: 1px solid #eee;
    background-color: #fafafa;
    border-radius: 5px;
    margin-bottom: 10px;
}

li.done {
    background-color: #e6ffe6;
}

li.done .task-title {
    text-decoration: line-through;
    color: #555;
}

.task-title {
    font-weight: bold;
    font-size: 18px;
}

.task-desc {
    color: #555;
    margin: 5px 0;
}

.task-date, .task-category {
    color: #777;
    font-size: 14px;
}

a {
    color: #dc3545;
    text-decoration: none;
    margin-left: 10px;
}

a:hover {
    text-decoration: underline;
}