/* 
 * Design inspired by modern, clean editorial policies (like OpenAI's) 
 * prioritizing readability, structure, and a premium minimal aesthetic in light mode.
 */

 :root {
    --color-bg: #ffffff;
    --color-text-primary: #000000;
    --color-text-secondary: #555555;
    --color-text-tertiary: #888888;
    --color-border: #e5e5e5;
    --color-link: #1a1a1a;
    --color-link-hover: #666666;
    
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-serif: 'Playfair Display', Georgia, Cambria, "Times New Roman", Times, serif;
    
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 5rem;
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--color-bg);
    color: var(--color-text-secondary);
    line-height: 1.6;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

/* Logo */
.policy-logo {
    max-width: 120px;
    height: auto;
    margin-bottom: var(--spacing-md);
    display: block;
}

/* Main Content */
.main-content {
    max-width: 768px; /* Optimal reading width */
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-md);
}

.document-header {
    margin-bottom: var(--spacing-xl);
}

h1 {
    font-family: var(--font-sans);
    font-size: 2.5rem;
    font-weight: 500;
    color: var(--color-text-primary);
    line-height: 1.1;
    margin-bottom: var(--spacing-xs);
    letter-spacing: -0.03em;
}

.effective-date {
    color: var(--color-text-tertiary);
    font-size: 0.95rem;
}

/* Document Body */
.document-body section {
    margin-bottom: var(--spacing-lg);
}

h2 {
    font-family: var(--font-sans);
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.01em;
}

h3 {
    font-family: var(--font-sans);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-xs);
}

p {
    margin-bottom: var(--spacing-sm);
}

ul {
    margin-bottom: var(--spacing-sm);
    padding-left: var(--spacing-md);
}

li {
    margin-bottom: var(--spacing-xs);
}

a {
    color: var(--color-link);
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 3px;
    transition: color 0.2s ease, text-decoration-color 0.2s ease;
}

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

/* Footer */
.footer {
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-md);
    text-align: center;
    color: var(--color-text-tertiary);
    font-size: 0.85rem;
    margin-top: var(--spacing-xl);
}

/* Responsive */
@media (max-width: 600px) {
    h1 {
        font-size: 2rem;
    }

    .main-content {
        padding-top: var(--spacing-lg);
    }
}