body {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
    background-image: url('tracker.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
}

.tracker-container {
    background-color: rgba(255, 255, 255, 0.85); 
    max-width: 400px;
    margin: 50px auto;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

h1 {
    text-align: center;
    margin-bottom: 20px;
    font-size: 28px;
    font-weight: bold;
}

input[type="text"], input[type="date"] {
    width: calc(100% - 20px);
    padding: 8px;
    margin: 5px 0;
    border-radius: 5px;
    border: 1px solid #ccc;
}

button {
    width: 100%;
    padding: 10px;
    margin: 5px 0;
    background-color: #4CAF50;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

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

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

li {
    margin: 5px 0;
    padding: 8px;
    background-color: #f2f2f2;
    border-radius: 5px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

li.checked {
    text-decoration: line-through;
    color: gray;
}

li button {
    margin-left: 10px;
    background-color: red;
    color: white;
    border: none;
    border-radius: 5px;
    padding: 2px 5px;
}