style.css

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    color: #333;
}

.app-container {
    max-width: 600px;
    margin: 50px auto;
    background-color: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

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

input {
    width: 75%;
    padding: 10px;
    font-size: 16px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

button {
    padding: 10px;
    font-size: 16px;
    border: none;
    background-color: #4CAF50;
    color: white;
    cursor: pointer;
    border-radius: 4px;
}

button:hover {
    background-color: #45a049;
}

.task-list {
    list-style-type: none;
}

.task-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px;
    background-color: #f9f9f9;
    border-bottom: 1px solid #ddd;
}

.task-item button {
    background-color: #ff4d4d;
    border: none;
    color: white;
    cursor: pointer;
    padding: 5px 10px;
    border-radius: 4px;
}

.task-item button:hover {
    background-color: #e60000;
}

footer {
    text-align: center;
    margin-top: 20px;
    font-size: 14px;
}