:root{--font-sans: "Cairo", system-ui, -apple-system, sans-serif;--bg-main: #f8fafc;--bg-card: #ffffff;--border-color: #e2e8f0;--text-primary: #0f172a;--text-secondary: #64748b;--primary-blue: #1d4ed8;--primary-blue-hover: #1e40af;--accent-emerald: #059669;--accent-amber: #d97706;--accent-rose: #e11d48}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--bg-main);color:var(--text-primary);min-height:100vh;line-height:1.5}button,input,select,textarea{font-family:inherit}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:#f1f5f9}::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#94a3b8}