:root{--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--text-primary: #1a1a1a;--text-secondary: #555;--text-muted: #999;--text-accent: #e85d26;--surface-1: #f9f9f9;--surface-2: #f0f0f0;--border: #e0e0e0;--border-strong: #ccc;--border-accent: #e85d26;--bg-accent: #fff4f0;--radius: 6px}*{box-sizing:border-box;margin:0;padding:0;-webkit-user-select:none;user-select:none}.font-name{-webkit-user-select:text;user-select:text}body{background:#fff;padding:2rem}