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

body {
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #f0f4f8;
}

.container {
    text-align: center;
    max-width: 600px;
    padding: 20px;
    background-color: #ffffff;
    box-shadow: 0px 4px 8px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
}

h1 {
    font-size: 2em;
    color: #333;
    margin-bottom: 20px;
}

.steps {
    text-align: left;
    list-style: decimal inside;
    margin-bottom: 20px;
    color: #555;
    line-height: 1.6;
}

.download-btn {
    display: inline-block;
    padding: 10px 20px;
    color: #ffffff;
    background-color: #007bff;
    text-decoration: none;
    border-radius: 4px;
    font-weight: bold;
    transition: background-color 0.3s ease;
}

.download-btn:hover {
    background-color: #0056b3;
}

.navbar {
    margin-bottom: 20px;
}

.nav-btn {
    padding: 10px 20px;
    margin: 0 5px;
    border: none;
    background-color: #007bff;
    color: #ffffff;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.nav-btn:hover {
    background-color: #0056b3;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.changelog-text {
    text-align: left;
    background-color: #f9f9f9;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    overflow-x: auto;
    white-space: pre-wrap;
    color: #333;
    font-family: monospace;
}