:root{--color-bg:#fafafa;--color-surface:#fff;--color-fg:#111;--color-fg-muted:#666;--color-primary:#05f;--color-primary-fg:#fff;--color-border:#e0e0e0;--color-danger:#c00;--color-success:#080;--color-warning:#b35c00;--font-sans:system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--font-mono:ui-monospace, "Cascadia Code", "Fira Code", monospace;--radius-sm:4px;--radius-md:8px;--spacing-xs:4px;--spacing-sm:8px;--spacing-md:16px;--spacing-lg:24px;--spacing-xl:32px}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html,body{font-family:var(--font-sans);color:var(--color-fg);background-color:var(--color-bg);-webkit-font-smoothing:antialiased;line-height:1.5}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}