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

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    background-color: #f5f5f5;
    color: #333;
}

.container {
    max-width: 800px;
    margin: 2rem auto;
    padding: 2rem;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

h1 {
    text-align: center;
    margin-bottom: 2rem;
    color: #2c3e50;
}

h2 {
    color: #34495e;
    margin-bottom: 1rem;
}

.token-status, .certificates, .certificate-info {
    margin-bottom: 2rem;
    padding: 1rem;
    border: 1px solid #ddd;
    border-radius: 4px;
}

select {
    width: 100%;
    padding: 0.5rem;
    margin-bottom: 1rem;
    border: 1px solid #ddd;
    border-radius: 4px;
}

#certificateInfo {
    padding: 1rem;
    background-color: #f8f9fa;
    border-radius: 4px;
}

#tokenStatus {
    padding: 0.5rem;
    border-radius: 4px;
    font-weight: bold;
}

#tokenStatus.connected {
    background-color: #d4edda;
    color: #155724;
}

#tokenStatus.disconnected {
    background-color: #f8d7da;
    color: #721c24;
}