body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.container {
    width: 90%;
    max-width: 1200px;
    background: #fff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    margin: 20px;
}

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

form {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
}

form label {
    font-weight: bold;
}

form input[type="date"],
form input[type="submit"] {
    padding: 8px 12px;
    border: 1px solid #ccc;
    border-radius: 5px;
}

form input[type="submit"] {
    background-color: #4CAF50;
    color: white;
    cursor: pointer;
}

form input[type="submit"]:hover {
    background-color: #45a049;
}

.button {
    display: block;
    width: fit-content;
    margin: 0 auto 20px;
    padding: 10px 20px;
    background-color: #4CAF50;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    text-align: center;
}

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

#statistics {
    text-align: center;
}

#statistics p {
    font-size: 1.2em;
    margin-bottom: 20px;
}

h2 {
    color: #666;
    margin-bottom: 10px;
}

canvas {
    margin-top: 20px;
    max-width: 400px;
    max-height: 300px;
    display: inline-block;
}

.chart-container {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px;
}