:root{--bg: #F8FAFC;--surface: #FFFFFF;--fg: #0F172A;--muted: #64748B;--accent: #2563EB;--accent-light: #EFF6FF;--border: #E2E8F0;--border-hover: #CBD5E1;--font-display: "Inter", system-ui, -apple-system, sans-serif;--font-body: "Inter", system-ui, -apple-system, sans-serif;--text-xs: 12px;--text-sm: 14px;--text-base: 16px;--text-lg: 20px;--text-xl: 28px;--text-2xl: 36px;--radius: 12px;--radius-sm: 8px;--radius-lg: 16px;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 20px;--space-6: 24px;--space-8: 32px;--space-10: 40px;--space-12: 48px;--shadow-sm: 0 1px 2px rgba(0,0,0,.05);--shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);--shadow-lg: 0 10px 30px rgba(0,0,0,.08), 0 2px 8px rgba(0,0,0,.04)}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:var(--font-body);background:var(--bg);color:var(--fg);font-size:var(--text-base);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}button{font-family:inherit;cursor:pointer;border:none;background:none}input{font-family:inherit}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}