:root{--color-bg-primary:#0b0b0d;--color-bg-surface:#1b1b1f;--color-text-primary:#f8f8f2;--color-text-secondary:#c7c7c7;--color-accent:#fc0;--color-accent-hover:#e6b800;--color-danger:#f55;--color-warning:#fa0;--color-info:#6aa6fa;--color-success:#50fa7b;--color-border:#333;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:24px;--space-6:32px;--radius-sm:4px;--radius-md:8px;--radius-lg:16px;--font-family-base:"Helvetica Neue",Arial,sans-serif;--font-size-xs:12px;--font-size-sm:14px;--font-size-md:16px;--font-size-lg:20px;--transition-fast:.2s ease-in-out}body{background:var(--color-bg-primary);color:var(--color-text-primary);min-height:100vh;margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif}*,:before,:after{box-sizing:border-box}