*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg: #f8fafc;--surface: #ffffff;--border: #e2e8f0;--text: #0f172a;--muted: #64748b;--accent: #6366f1;--accent-bg: #eef2ff;--radius: 12px;--shadow: 0 1px 3px rgba(0,0,0,.08), 0 4px 16px rgba(0,0,0,.06)}body{font-family:Inter,sans-serif;background:var(--bg);color:var(--text);min-height:100vh}@keyframes spin{to{transform:rotate(360deg)}}