*{box-sizing:border-box}body{font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;margin:0;background:#f6f7f9;color:#1d2433}
main{max-width:1060px;margin:0 auto;padding:20px}h1{font-size:1.5rem}h2{font-size:1.15rem;margin-top:28px}
nav{display:flex;gap:16px;align-items:center;flex-wrap:wrap;background:#1d2433;color:#fff;padding:10px 20px}nav a,nav .link{color:#cfe1ff;text-decoration:none;background:none;border:0;cursor:pointer;font:inherit}nav span{opacity:.75;margin-right:auto}
.test{background:#ffd34d;color:#3a2a00;text-align:center;padding:6px;font-weight:600;font-size:.9rem}
table{width:100%;border-collapse:collapse;background:#fff;border-radius:8px;overflow:hidden;box-shadow:0 1px 2px #0001}th,td{padding:9px 10px;border-bottom:1px solid #eceef2;text-align:left;font-size:.92rem;vertical-align:top}th{background:#f0f2f6}
.card{background:#fff;border-radius:10px;padding:18px;box-shadow:0 1px 2px #0001;margin:14px 0}.row{display:flex;gap:14px;flex-wrap:wrap}.row>.card{flex:1;min-width:260px}
input,select{padding:8px;border:1px solid #c9ced8;border-radius:6px;font:inherit}label{display:block;margin:8px 0 4px;font-size:.88rem;color:#4a5265}
button,.btn{background:#2554d9;color:#fff;border:0;padding:9px 14px;border-radius:6px;font:inherit;cursor:pointer;text-decoration:none;display:inline-block}button.secondary,.btn.secondary{background:#e8ecf5;color:#1d2433}button.danger{background:#c63b3b}
.inline{display:inline}.pill{padding:2px 8px;border-radius:99px;font-size:.8rem;font-weight:600}.Paid{background:#d9f5e3;color:#13693a}.Failed,.Canceled{background:#fde0e0;color:#9b1c1c}.Processing{background:#e1ecff;color:#1b4bb3}.Due,.No{background:#eee;color:#555}
.flash{background:#e8f4ff;border:1px solid #b8d8ff;padding:10px 12px;border-radius:8px}.muted{color:#6b7385;font-size:.88rem}footer{text-align:center;color:#8a90a0;font-size:.8rem;padding:24px}
pre{white-space:pre-wrap;background:#f3f4f7;padding:10px;border-radius:6px;font-size:.85rem}
.demo-banner{background:#ffd34d;color:#3a2a00;font-weight:700;text-align:center;padding:12px;border-radius:8px;margin-bottom:12px;max-width:380px}