.nk-pack-calculator{margin:20px 0;padding:16px;border:1px solid #e5e5e5;border-radius:4px}
.nk-pack-calculator h3{font-size:17px;margin:0 0 8px}.nk-pack-calculator p{font-size:13px;margin:0 0 12px}
.nk-pack-fields{display:flex;gap:12px;align-items:flex-end;flex-wrap:wrap}.nk-pack-fields label{display:block;font-size:13px;max-width:100%}
.nk-pack-fields input{width:150px;max-width:100%}.nk-pack-fields input,.nk-pack-fields select{display:block;height:40px;padding:6px 8px;border:1px solid #ccc;border-radius:3px;background:#fff;color:#222}
.nk-pack-result{display:block;min-height:40px;margin-top:12px;font-size:14px;line-height:20px}