:root {
    /* Colors */
    --bg: #fefefe;
    --bg-secondary: #f5f5f5;
    --text: #1a1a1a;
    --text-secondary: #555;
    --text-muted: #888;
    --accent: #d35400;
    --accent-hover: #ba4a00;
    --border: #e5e5e5;
    --shadow: rgba(0,0,0,0.1);
    --overlay: rgba(0,0,0,0.5);
    --menu-bg: #ffffff;

    /* Typography */
    --font-serif: 'Georgia', 'Times New Roman', serif;
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Spacing */
    --radius: 12px;

    /* Special boxes */
    --definition-bg: linear-gradient(135deg, #d4edda 0%, #c3e6cb 100%);
    --definition-border: #28a745;
    --highlight-bg: linear-gradient(135deg, #cce5ff 0%, #b8daff 100%);
    --highlight-border: #007bff;
    --figure-bg: linear-gradient(135deg, #fff3cd 0%, #ffe69c 100%);
    --figure-border: #ffc107;
}