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

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: #333;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

header {
    text-align: center;
    padding: 30px 0;
    border-bottom: 1px solid #eaeaea;
}

nav {
    display: flex;
    justify-content: center;
    padding: 20px 0;
}

nav a {
    margin: 0 15px;
    text-decoration: none;
    color: #555;
    font-weight: bold;
}

nav a:hover {
    color: #0066cc;
}

.intro {
    text-align: center;
    padding: 40px 0;
}

.apps {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
    margin: 40px 0;
}

.app-card {
    background-color: #f9f9f9;
    border-radius: 8px;
    padding: 25px;
    width: 300px;
    text-align: center;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.app-card h3 {
    margin-bottom: 15px;
    color: #0066cc;
}

.button {
    display: inline-block;
    margin-top: 15px;
    padding: 10px 20px;
    background-color: #0066cc;
    color: white;
    text-decoration: none;
    border-radius: 4px;
}

.button:hover {
    background-color: #0055aa;
}

footer {
    text-align: center;
    padding: 20px 0;
    margin-top: 40px;
    border-top: 1px solid #eaeaea;
    font-size: 0.9em;
    color: #777;
}