*,*:before,*:after{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-size:16px;color:#111827;background:#f8fafc}.btn{display:inline-flex;align-items:center;justify-content:center;padding:.45rem .875rem;border:1px solid #d1d5db;border-radius:.375rem;background:#fff;color:#374151;font-size:.875rem;font-weight:500;cursor:pointer;transition:background .15s,border-color .15s,color .15s}.btn:hover:not(:disabled){background:#f3f4f6}.btn:disabled{opacity:.5;cursor:not-allowed}.btn.btn-primary{background:#3b82f6;border-color:#3b82f6;color:#fff}.btn.btn-primary:hover:not(:disabled){background:#2563eb;border-color:#2563eb}.btn.btn-danger{color:#ef4444;border-color:#fca5a5}.btn.btn-danger:hover:not(:disabled){background:#fee2e2}.btn.btn-sm{padding:.25rem .6rem;font-size:.8rem}