*,:after,:before{box-sizing:border-box;margin:0;padding:0}:root{--bg:#0f0f0f;--surface:#1a1a1a;--border:#2a2a2a;--text:#e8e8e8;--text-muted:#888;--accent:#6b9fff;--accent-hover:#5a8eee;--danger:#ff6b6b;--sidebar-width:240px}body,html{height:100%;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:15px}a{color:inherit;text-decoration:none}button{cursor:pointer;font:inherit}