:root{--color-primary: #1e40af;--color-secondary: #3b82f6;--color-accent: #60a5fa;--color-background: #f8fafc;--color-surface: #ffffff;--color-text: #1e293b;--color-text-secondary: #64748b;--color-border: #e2e8f0;--color-error: #dc2626;--color-success: #059669;--space-xs: .25rem;--space-sm: .5rem;--space-md: 1rem;--space-lg: 1.5rem;--space-xl: 2rem;--space-2xl: 3rem;--space-3xl: 4rem;--radius-sm: .375rem;--radius: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow: 0 1px 3px 0 rgba(0, 0, 0, .1), 0 1px 2px 0 rgba(0, 0, 0, .06);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .1), 0 10px 10px -5px rgba(0, 0, 0, .04)}@media (prefers-color-scheme: dark){:root{--color-background: #0f172a;--color-surface: #1e293b;--color-text: #f1f5f9;--color-text-secondary: #94a3b8;--color-border: #334155;--shadow: 0 4px 6px -1px rgba(0, 0, 0, .3);--shadow-md: 0 8px 10px -3px rgba(0, 0, 0, .3);--shadow-lg: 0 16px 20px -5px rgba(0, 0, 0, .3);--shadow-xl: 0 25px 30px -7px rgba(0, 0, 0, .3)}}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.6;color:var(--color-text);background-color:var(--color-background);font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.container{max-width:1400px;margin:0 auto;padding:0 var(--space-lg)}h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.2;color:var(--color-text)}*:focus{outline:2px solid var(--color-primary);outline-offset:2px}