.nsd { max-width:480px; margin:0 auto; font:inherit; color:inherit; }
  .nsd *, .nsd *::before, .nsd *::after { box-sizing:border-box; }
  .nsd [hidden] { display:none !important; }
  .nsd p.lead { text-align:center; margin:0 0 1.5rem; opacity:.75; }
  .nsd { --nsd-accent: var(--wp--preset--color--primary, var(--wp--preset--color--accent, var(--wp--style--color--link, #1a1a1a)));
         --nsd-on-accent: var(--wp--preset--color--base, #fff);
         --nsd-line: color-mix(in srgb, currentColor 22%, transparent); }
  .nsd-amounts { display:grid; grid-template-columns:repeat(3,1fr); border:1px solid var(--nsd-line); border-radius:6px; overflow:hidden; }
  .nsd-amounts button { all:unset; box-sizing:border-box; cursor:pointer; text-align:center; padding:1.1rem .5rem;
            font:inherit; font-weight:700; font-size:1.05em; border-left:1px solid var(--nsd-line); transition:background .15s,color .15s; }
  .nsd-amounts button:first-child { border-left:0; }
  .nsd-amounts button:hover { background:color-mix(in srgb, var(--nsd-accent) 12%, transparent); }
  .nsd-amounts button[aria-pressed="true"] { background:var(--nsd-accent); color:var(--nsd-on-accent); }
  .nsd-amounts button:focus-visible { outline:3px solid currentColor; outline-offset:-3px; }
  .nsd label.nsd-f { display:block; margin-top:1rem; font-size:.9em; }
  .nsd input[type=text], .nsd input[type=email], .nsd input[type=number] { display:block; width:100%; margin-top:.3rem; padding:.8rem; font:inherit; color:inherit;
            background:transparent; border:1px solid var(--nsd-line); border-radius:6px; }
  .nsd .nsd-chk { display:flex; gap:.6rem; align-items:flex-start; margin-top:1rem; font-size:.95em; line-height:1.4; cursor:pointer; }
  .nsd .nsd-chk input { margin-top:.2em; width:1.15em; height:1.15em; flex:none; accent-color:var(--nsd-accent); }
  .nsd .nsd-go { display:block; width:100%; margin-top:1.5rem; cursor:pointer; text-align:center; }
  .nsd .nsd-go[disabled] { opacity:.45; cursor:not-allowed; }
  .nsd .nsd-hp { position:absolute; left:-9999px; height:0; overflow:hidden; }
  .nsd .nsd-msg { margin-top:.9rem; text-align:center; color:#b00020; min-height:1.2em; }
  .nsd small { display:block; margin-top:.5rem; text-align:center; opacity:.7; font-size:.85em; line-height:1.4; }
  .nsd .nsd-thanks { text-align:center; padding:1.5rem 0; }