*,*:before,*:after{box-sizing:border-box}html,body{margin:0;padding:0;font-family:Segoe UI,system-ui,-apple-system,sans-serif;font-size:14px;color:#0f172a;background:#f1f5f9;-webkit-font-smoothing:antialiased}.page-header{margin-bottom:24px}.page-header h2{margin:0 0 4px;font-size:24px;font-weight:700;color:#0f172a}.page-header p{margin:0;color:#64748b;font-size:14px}.card{background:#fff;border-radius:12px;padding:24px;box-shadow:0 1px 3px #0000000f;border:1px solid #e2e8f0}