:root{--bg: #f8fafc;--surface: #ffffff;--subtle: #f1f5f9;--text: #0f172a;--muted: #64748b;--border: #dbe3ee;--primary: #2563eb;--primary-hover: #1d4ed8;--danger: #dc2626;--success: #059669;--shadow-sm: 0 1px 3px rgba(15, 23, 42, .06);--shadow-lg: 0 16px 40px rgba(15, 23, 42, .12)}*{box-sizing:border-box}html,body{min-height:100%}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;line-height:1.5}button,input{font:inherit}