:root{--bg-primary:#0d1117;--bg-secondary:#161b22;--bg-tertiary:#1c2128;--border:#30363d;--text-primary:#e6edf3;--text-secondary:#8b949e;--text-muted:#484f58;--accent:#00d4aa;--accent-dim:#00d4aa33;--danger:#f85149;--warning:#d29922}*{margin:0;padding:0;box-sizing:border-box}body{background:var(--bg-primary);color:var(--text-primary);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;-webkit-font-smoothing:antialiased;overflow:hidden;height:100vh}button,input{font-family:inherit}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}