:root {
    --bg-color: #f9fafb;
    --text-color: #374151;
    --heading-color: #111827;
    --accent-color: #3b82f6;
    --container-bg: #ffffff;
    --border-color: #e5e7eb;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: #111827;
        --text-color: #d1d5db;
        --heading-color: #f9fafb;
        --accent-color: #60a5fa;
        --container-bg: #1f2937;
        --border-color: #374151;
    }
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    min-height: 100vh;
}

.container {
    max-width: 800px;
    width: 100%;
    margin: 40px 20px;
    padding: 40px;
    background-color: var(--container-bg);
    border-radius: 12px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    border: 1px solid var(--border-color);
    box-sizing: border-box;
}

h1 {
    color: var(--heading-color);
    font-size: 2.5rem;
    margin-top: 0;
    margin-bottom: 0.5rem;
    font-weight: 700;
    letter-spacing: -0.025em;
}

.effective-date {
    color: var(--text-color);
    opacity: 0.8;
    font-size: 0.875rem;
    margin-bottom: 2rem;
    display: block;
}

h2 {
    color: var(--heading-color);
    font-size: 1.5rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
    font-weight: 600;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}

p {
    margin-top: 0;
    margin-bottom: 1rem;
}

strong {
    color: var(--heading-color);
    font-weight: 600;
}

a {
    color: var(--accent-color);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--text-color);
    text-decoration: underline;
}

@media (max-width: 640px) {
    .container {
        margin: 20px 10px;
        padding: 20px;
    }
    h1 {
        font-size: 2rem;
    }
}