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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: #f8f9fa;
    color: #212529;
    line-height: 1.6;
}

.navbar {
    background-color: #007bff;
    padding: 1rem;
    display: flex;
    justify-content: center;
    gap: 20px;
}

.navbar a {
    color: white;
    text-decoration: none;
    font-weight: bold;
    padding: 5px 10px;
    border-radius: 4px;
}

.navbar a:hover, .navbar a.active {
    background-color: #0056b3;
}

.container {
    max-width: 600px;
    margin: 50px auto;
    padding: 20px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    text-align: center;
}

h1 {
    color: #333;
    margin-bottom: 15px;
}

p {
    color: #666;
    margin-bottom: 20px;
}

.card {
    background: #e9ecef;
    padding: 15px;
    border-radius: 6px;
    display: inline-block;
}

.badge {
    padding: 3px 8px;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: bold;
    color: white;
}

.success {
    background-color: #28a745;
}