:root{--primary-color: #2563eb;--secondary-color: #64748b;--success-color: #22c55e;--warning-color: #f59e0b;--error-color: #ef4444;--background-color: #f8fafc;--surface-color: #ffffff;--text-primary: #1e293b;--text-secondary: #64748b;--border-color: #e2e8f0}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,sans-serif;background-color:var(--background-color);color:var(--text-primary);line-height:1.5}[dir=rtl]{text-align:right}#root{min-height:100vh}a{color:var(--primary-color);text-decoration:none}button{cursor:pointer;font-family:inherit}.container{max-width:1200px;margin:0 auto;padding:0 1rem}