:root{--bg-primary:#0f0f0f;--bg-secondary:#1a1a1a;--bg-tertiary:#2a2a2a;--text-primary:#ffffff;--text-secondary:#b0b0b0;--text-muted:#808080;--border-primary:#333333;--accent-primary:#ff6b35;--accent-secondary:#00d4ff;--accent-warning:#fbbf24;--accent-success:#10b981;--shadow-xl:0 20px 60px rgba(0, 0, 0, 0.3);--shadow-lg:0 10px 30px rgba(0, 0, 0, 0.2);--radius-xl:20px;--radius-lg:15px;--radius-2xl:24px;--radius-full:50px;--space-2:0.5rem;--space-3:0.75rem;--space-4:1rem;--space-5:1.25rem;--space-6:1.5rem;--space-8:2rem;--space-12:3rem;--space-16:4rem;--space-20:5rem;--space-24:6rem;--weight-medium:500;--weight-semibold:600;--weight-black:900;--z-sticky:50;--transition-base:0.3s ease;}html, body{background:var(--bg-primary);color:var(--text-primary);}.container{max-width:1200px;margin:0 auto;padding:0 20px;}.flex{display:flex;}.flex-between{display:flex;justify-content:space-between;align-items:center;}a{transition:all var(--transition-base);}