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

body {
    font-family: Georgia, serif;
    background-color: #f5f5dc;
    color: #333;
    padding: 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background-color: #fff;
    padding: 30px;
    border: 2px solid #333;
    box-shadow: 5px 5px 0px #333;
}

h1 {
    text-align: center;
    margin-bottom: 30px;
    font-size: 2em;
    border-bottom: 3px double #333;
    padding-bottom: 15px;
}

.info {
    text-align: center;
    margin-bottom: 30px;
}

.info p {
    margin-bottom: 15px;
    font-size: 1.1em;
}

input[type="date"] {
    padding: 8px 15px;
    font-size: 1em;
    border: 2px solid #333;
    font-family: Georgia, serif;
    margin-right: 10px;
}

button {
    padding: 8px 25px;
    font-size: 1em;
    background-color: #333;
    color: #fff;
    border: 2px solid #333;
    cursor: pointer;
    font-family: Georgia, serif;
}

button:hover {
    background-color: #fff;
    color: #333;
}

#stats {
    text-align: center;
    margin-bottom: 30px;
    font-size: 1.2em;
    font-weight: bold;
}

#grid {
    display: grid;
    grid-template-columns: repeat(52, 1fr);
    gap: 2px;
    margin-top: 20px;
}

.week {
    width: 100%;
    padding-bottom: 100%;
    border: 1px solid #ccc;
    background-color: #fff;
}

.week.lived {
    background-color: #333;
}

@media (max-width: 768px) {
    #grid {
        grid-template-columns: repeat(26, 1fr);
    }
}