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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #333;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

header {
    text-align: center;
    margin-bottom: 40px;
    color: white;
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

header p {
    font-size: 1.1rem;
    opacity: 0.9;
}

main {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.card {
    background: white;
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.2s ease;
}

.card:hover {
    transform: translateY(-2px);
}

.card h2 {
    color: #2d3748;
    margin-bottom: 16px;
    font-size: 1.25rem;
}

.card div {
    color: #4a5568;
    line-height: 1.6;
}

footer {
    text-align: center;
    color: white;
    background: rgba(0, 0, 0, 0.2);
    padding: 20px;
    border-radius: 8px;
}

footer p {
    font-size: 0.9rem;
}

.status-ok {
    color: #38a169;
    font-weight: 600;
}

.status-error {
    color: #e53e3e;
    font-weight: 600;
}

.credential-info {
    font-family: 'Courier New', monospace;
    background: #f7fafc;
    padding: 8px;
    border-radius: 4px;
    font-size: 0.85rem;
    margin-top: 8px;
}