/* Light brand style for Next Theme pay */
:root{
  --bg:#f7f7fb;
  --card:#ffffff;
  --text:#111827;
  --muted:#6b7280;
  --primary:#0ea5e9; /* sky-500 */
  --primary-contrast:#ffffff;
  --border:#e5e7eb;
  --error:#b91c1c;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font:16px/1.5 system-ui,-apple-system,Segoe UI,Roboto,Inter,Arial,sans-serif}
.nt-container{max-width:960px;margin:0 auto;padding:16px}
.nt-header{background:#fff;border-bottom:1px solid var(--border)}
.nt-logo{height:36px;vertical-align:middle;margin-right:12px}
.nt-title{display:inline-block;vertical-align:middle;font-size:18px;margin:0}
.nt-card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:16px;margin:16px 0}
.nt-input{border:1px solid var(--border);border-radius:10px;padding:12px;background:#fafafa}
.nt-btn{border:0;border-radius:10px;padding:12px 16px;cursor:pointer}
.nt-btn-primary{background:var(--primary);color:var(--primary-contrast)}
.nt-btn-primary:disabled{opacity:.6;cursor:not-allowed}
.nt-error{color:var(--error);margin-top:8px;min-height:1.2em}
.nt-muted{color:var(--muted)}
.nt-hidden{display:none}
.nt-footer{color:var(--muted);font-size:14px;padding:16px 0;text-align:center}