:root{--bg:#fafaf9;--surface:#fff;--border:#e7e5e4;--text-primary:#1c1917;--text-secondary:#57534e;--text-muted:#a8a29e;--accent:#0e7490;--accent-light:#e0f2fe;--accent-hover:#0c6580;--success:#059669;--warning:#d97706;--error:#dc2626;--font-sans:"DM Sans",-apple-system,BlinkMacSystemFont,sans-serif;--font-mono:"JetBrains Mono",monospace;--radius:8px;--shadow-sm:0 1px 2px rgba(0,0,0,.05);--shadow:0 1px 3px rgba(0,0,0,.08),0 1px 2px rgba(0,0,0,.04);--shadow-lg:0 4px 12px rgba(0,0,0,.08)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font-sans);background:var(--bg);color:var(--text-primary);line-height:1.6;-webkit-font-smoothing:antialiased}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}code{font-family:var(--font-mono);font-size:.9em;background:#f5f5f4;padding:2px 6px;border-radius:4px}