:root{--primary: #3B82F6;--primary-hover: #2563EB;--bg-color: #F3F4F6;--card-bg: #FFFFFF;--text-main: #1F2937;--text-secondary: #6B7280;--success: #10B981;--danger: #EF4444;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--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);--radius-lg: 1rem;--radius-xl: 1.5rem;--transition: all .3s cubic-bezier(.4, 0, .2, 1)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Inter,system-ui,-apple-system,sans-serif;background-color:var(--bg-color);color:var(--text-main);min-height:100vh;display:flex;justify-content:center;padding:2rem}#root{width:100%;max-width:800px}h1,h2,h3,h4,h5,h6{font-weight:700;line-height:title}button{font-family:inherit;cursor:pointer;border:none;background:none}input{font-family:inherit;outline:none}