:root{--primary: #4f46e5;--primary-700: #4338ca;--success: #16a34a;--danger: #dc2626;--warning: #f59e0b;--muted: #6b7280;--bg: #f9fafb;--bg-secondary: #f8f9fa;--surface: #ffffff;--border: #e5e7eb;--text: #111827;--on-primary: #fff;--on-success: #fff;--warning-bg: #fff3cd;--warning-border: #ffc107;--warning-text: #856404;--error-bg: #fff5f5;--error-border: #dc2626;--error-text: #721c24;--info-bg: #f0f9ff;--info-border: #17a2b8;--info-text: #0c5460;--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--card-padding: 1.5rem;--card-border-radius: .5rem;--card-shadow: 0 1px 3px 0 rgba(0, 0, 0, .1), 0 1px 2px 0 rgba(0, 0, 0, .06)}@media (prefers-color-scheme: dark){:root{--bg: #0b1020;--bg-secondary: #1a1f2e;--surface: #0f172a;--border: #1f2a44;--text: #e5e7eb;--muted: #9ca3af;--primary: #818cf8;--primary-700: #6366f1;--on-primary: #fff;--success: #22c55e;--danger: #ef4444;--warning: #fbbf24;--warning-bg: #3d3419;--warning-border: #f59e0b;--warning-text: #fbbf24;--error-bg: #3d1a1a;--error-border: #ef4444;--error-text: #fca5a5;--info-bg: #1e293b;--info-border: #3b82f6;--info-text: #93c5fd;--card-shadow: 0 1px 3px 0 rgba(0, 0, 0, .3), 0 1px 2px 0 rgba(0, 0, 0, .2)}}:root{scroll-behavior:smooth}*{box-sizing:border-box}img,svg{max-width:100%;display:block}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}.app-shell{min-height:100dvh;display:grid;grid-template-rows:auto 1fr auto}.header,.footer{background:var(--surface);border-bottom:1px solid var(--border);padding:1rem 0}.footer{border-top:1px solid var(--border);border-bottom:0}@media (max-width: 768px){body{margin:0!important}}