@media (max-width: 600px) {
  .pack-hero {
    padding: 30px 14px 34px !important;
    gap: 12px !important;
  }

  .pack-hero h1 {
    font-size: 30px !important;
    line-height: 1.02 !important;
  }

  .pack-hero > div > p:not(.eyebrow) {
    margin: 14px 0 !important;
    font-size: 12px !important;
    line-height: 1.5 !important;
  }

  .pack-hero .btn {
    min-height: 42px;
    padding: 0 13px;
    font-size: 9px;
  }

  .guide-visual {
    min-height: 180px !important;
    transform: scale(.62) !important;
    margin: -25px 0 -70px !important;
  }

  .pack-section {
    padding: 36px 14px !important;
  }

  .packaging-page h2 {
    font-size: 26px !important;
    line-height: 1.05 !important;
  }

  .section-label {
    margin-bottom: 22px !important;
    font-size: 7px !important;
  }

  .pack-heading {
    gap: 10px !important;
    margin-bottom: 22px !important;
  }

  .pack-heading > p,
  .welcome > div > p:last-child,
  .measure-copy > p,
  .checklist-section > div > p,
  .quote-guide > div > p {
    margin: 8px 0;
    font-size: 11px;
    line-height: 1.5;
  }

  .welcome,
  .measure-layout,
  .quote-guide {
    gap: 22px !important;
  }

  .three-steps li {
    grid-template-columns: 34px 1fr;
    padding: 13px 0;
  }

  .three-steps span {
    font-size: 13px;
  }

  .use-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    gap: 7px;
    border: 0;
  }

  .use-grid article {
    min-height: 130px !important;
    padding: 13px !important;
    border: 1px solid #333;
  }

  .use-grid i { font-size: 20px; }
  .use-grid h3 { margin: 14px 0 5px; font-size: 13px; }
  .use-grid p { margin: 0 0 7px; font-size: 9px; line-height: 1.4; }
  .use-grid b { font-size: 6px; }

  .type-scroll,
  .style-scroll {
    display: grid;
    grid-template-columns: none !important;
    grid-auto-flow: column;
    grid-auto-columns: 160px;
    gap: 8px;
    margin-right: -14px !important;
    padding-bottom: 8px;
  }

  .type-card,
  .style-scroll article {
    padding: 12px;
  }

  .mini-box,
  .style-diagram {
    height: 90px;
    transform: scale(.8);
    margin: -8px;
  }

  .type-card h3,
  .style-scroll h3 {
    margin: 10px 0 5px;
    font-size: 14px;
  }

  .type-card > p,
  .style-scroll p {
    min-height: 0;
    font-size: 9px;
    line-height: 1.4;
  }

  .type-card ul {
    margin: 8px 0;
    padding-left: 13px;
    font-size: 8px;
  }

  .type-card dl { margin-top: 10px; }
  .type-card dl div { padding: 5px 0; font-size: 6px; }

  .friendly-note {
    margin: 14px 0;
    padding: 11px;
    font-size: 10px;
  }

  .measure-inputs {
    grid-template-columns: repeat(3, minmax(0, 1fr)) !important;
    gap: 6px;
    margin: 14px 0;
  }

  .measure-inputs input {
    padding: 10px 20px 10px 7px;
    font-size: 14px;
  }

  .dimension-visual {
    min-height: 205px !important;
  }

  .dimension-box {
    transform: scale(.48) perspective(700px) rotateY(-15deg) rotateX(5deg) !important;
  }

  .flat-flow {
    grid-template-columns: 1fr 12px 1fr 12px 1fr !important;
    gap: 4px !important;
    margin: 25px 0 !important;
  }

  .flat-flow > div { height: 105px; }
  .flat-flow > div i { transform: scale(.55); }
  .flat-flow > b { transform: none !important; font-size: 10px; }
  .flat-flow span { bottom: 8px; font-size: 6px; }

  .line-guide {
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    gap: 6px;
    border: 0;
  }

  .line-guide > div {
    padding: 12px;
    border: 1px solid #333 !important;
  }

  .line-guide h3 { margin: 8px 0 3px; font-size: 11px; }
  .line-guide p { margin: 0; font-size: 8px; }

  .need-grid,
  .finish-friendly,
  .factor-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    gap: 7px;
    border: 0;
  }

  .need-grid article,
  .finish-friendly article,
  .factor-grid article {
    padding: 9px 9px 14px !important;
    border: 1px solid #333;
  }

  .need-grid h3,
  .finish-friendly h3,
  .factor-grid h3 {
    margin: 8px 0 4px;
    font-size: 12px;
  }

  .need-grid ul {
    padding-left: 12px;
    font-size: 8px;
  }

  .finish-friendly i { height: 85px !important; font-size: 34px; }
  .finish-friendly span { font-size: 9px; line-height: 1.4; }
  .factor-grid p { margin: 4px 0; font-size: 9px; }

  .gsm-block {
    margin-top: 24px !important;
    padding: 15px !important;
    gap: 16px !important;
  }

  .gsm-block h3 { margin: 5px 0; font-size: 18px; }
  .gsm-block p { margin: 5px 0; font-size: 10px; }
  .gsm-scale { height: 115px; gap: 12px; }
  .gsm-scale span { width: 55px; padding: 6px; font-size: 6px; }
  .gsm-scale b { font-size: 13px; }

  .process-guide ol {
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    gap: 7px;
    border: 0;
  }

  .process-guide li {
    min-height: 120px !important;
    padding: 13px !important;
    border: 1px solid #333;
  }

  .process-guide h3 { margin: 15px 0 5px; font-size: 12px; }
  .process-guide p { margin: 0; font-size: 8px; }

  .checklist-section {
    gap: 18px !important;
  }

  .checklist-section ul {
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    gap: 5px;
  }

  .checklist-section li {
    padding: 9px;
    font-size: 9px;
  }

  .quote-guide form {
    gap: 18px;
    padding: 16px 12px !important;
  }

  .quote-guide fieldset {
    gap: 11px;
    padding-top: 17px;
  }

  .quote-guide input,
  .quote-guide select,
  .quote-guide textarea {
    min-height: 44px !important;
    padding: 10px;
    font-size: 14px !important;
  }

  .quote-submit { min-height: 48px; }
}