body {
    font-family: 'Arial', sans-serif;
    background: #f2f2f2;
    color: #333;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.container {
    background: #fff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    text-align: center;
    max-width: 600px;
    overflow-y: auto;
    max-height: 90vh;
}

header {
    border-bottom: 2px solid #4CAF50;
    padding-bottom: 10px;
    margin-bottom: 20px;
}

header h1 {
    margin: 0;
    font-size: 2em;
    color: #4CAF50;
    transition: color 0.3s;
}

header p {
    margin: 5px 0 0;
    font-style: italic;
    color: #777;
}

header h1:hover {
    color: #388E3C;
}

.info p, .presentation p {
    margin: 10px 0;
    font-size: 1.1em;
}

.info a {
    color: #4CAF50;
    text-decoration: none;
    transition: color 0.3s;
}

.info a:hover {
    color: #388E3C;
}

.presentation h2 {
    color: #4CAF50;
    margin-bottom: 15px;
}

.presentation p {
    text-align: left;
}