:root {
    --bg-color: #f9fafb;
    --text-color: #111827;
    --primary-color: #3b82f6;
    --safe-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: var(--bg-color);
    color: var(--text-color);
    text-align: center;
    transition: background-color 0.3s ease;
}

.container {
    max-width: 600px;
    padding: 2rem;
    border-radius: 1rem;
    background-color: white;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

h2 {
    font-size: 1.5rem;
    font-weight: 400;
    color: #6b7280;
    margin-bottom: 2rem;
}

#status {
    font-size: 2rem;
    font-weight: bold;
    margin-bottom: 1rem;
    padding: 1rem;
    border-radius: 0.5rem;
}

#message {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    color: #4b5563;
}

/* Status colors */
.safe-status {
    color: var(--safe-color);
    background-color: rgba(16, 185, 129, 0.1);
}

.warning-status {
    color: var(--warning-color);
    background-color: rgba(245, 158, 11, 0.1);
}

.danger-status {
    color: var(--danger-color);
    background-color: rgba(239, 68, 68, 0.1);
}

/* Background colors for different states */
body.safe-bg {
    background-color: rgba(16, 185, 129, 0.05);
}

body.warning-bg {
    background-color: rgba(245, 158, 11, 0.05);
}

body.danger-bg {
    background-color: rgba(239, 68, 68, 0.05);
}

@media (max-width: 640px) {
    .container {
        padding: 1.5rem;
        margin: 1rem;
    }
    h1 {
        font-size: 2rem;
    }
    #status {
        font-size: 1.5rem;
    }
}