* {
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    background: #f4f4f4;
    padding: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.container {
    align-items: center;
    background: white;
    padding: 20px;
    border-radius: 10px;
    width: 350px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

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

#taskInput {
    height: 40px;
    width: 100%;
    border: 1px solid #ccc;
    border-radius: 6px;
    margin-bottom: 10px;
}

#addBtn {
    width: 100%;
    padding: 10px;
    background: #007bff;
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 16px;
}

#addBtn:hover {
    background: #0056b3;
}

#taskList {
    margin-top: 10px;
    list-style: none;
    padding: 0;
}

#taskList li {
    background: #eee;
    padding: 10px;
    border-radius: 6px;
    margin-bottom: 8px;
}