/* ─── TABLET (max-width: 768px) ─── */
@media (max-width: 768px) {
  .wrapper {
    padding: 0 20px 60px;
  }

  .hero {
    padding: 40px 0 32px;
    margin-bottom: 40px;
  }

  .hero-title {
    font-size: clamp(22px, 6vw, 36px);
  }

  .logo-img {
    width: 72px;
  }

  /* Nav */
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 16px;
    gap: 4px;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-mobile-toggle {
    display: flex !important;
  }

  /* Grids */
  .peptide-grid {
    grid-template-columns: 1fr;
  }

  .calc-layout {
    grid-template-columns: 1fr;
  }

  .calc-inputs {
    grid-template-columns: 1fr;
  }

  .calc-results {
    grid-template-columns: 1fr;
  }

  .syringe-container {
    position: static;
    order: -1;
  }

  .detail-grid {
    grid-template-columns: 1fr;
  }

  .rules-grid {
    grid-template-columns: 1fr;
  }

  .blood-grid {
    grid-template-columns: 1fr 1fr;
  }

  .stacks-grid {
    grid-template-columns: 1fr;
  }

  /* Nav categories */
  .nav-cats {
    overflow-x: auto;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: 8px;
  }

  .nav-cats::-webkit-scrollbar {
    display: none;
  }

  .nav-cat {
    flex-shrink: 0;
  }

  /* Peptide page */
  .peptide-layout {
    grid-template-columns: 1fr;
  }

  .peptide-sidebar {
    order: -1;
  }

  .tab-nav {
    overflow-x: auto;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .tab-nav::-webkit-scrollbar {
    display: none;
  }

  .tab-btn {
    flex-shrink: 0;
    white-space: nowrap;
  }

  /* At a glance */
  .aag-grid {
    grid-template-columns: 1fr 1fr;
  }

  /* Interaction matrix */
  .interaction-grid {
    grid-template-columns: 1fr;
  }

  /* Comparison table */
  .comparison-table {
    overflow-x: auto;
  }

  /* Quick select */
  .quick-select-grid {
    overflow-x: auto;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 8px;
  }

  /* Dose table */
  .dose-table-section {
    overflow-x: auto;
  }

  /* Section header */
  .section-title {
    font-size: 16px;
  }

  /* Education grid */
  .edu-grid {
    grid-template-columns: 1fr;
  }
}

/* ─── MOBILE (max-width: 480px) ─── */
@media (max-width: 480px) {
  .wrapper {
    padding: 0 16px 40px;
  }

  .hero {
    padding: 32px 0 24px;
    margin-bottom: 32px;
  }

  .logo-wrap {
    flex-direction: column;
    gap: 12px;
  }

  .logo-img {
    width: 60px;
  }

  .badge-row {
    gap: 6px;
    margin-top: 20px;
  }

  .badge {
    font-size: 9px;
    padding: 4px 10px;
  }

  /* Cards */
  .pcard {
    padding: 20px;
  }

  .pcard-name {
    font-size: 16px;
  }

  .pcard-header {
    flex-direction: column;
    gap: 8px;
  }

  /* Calculator */
  .calc-form {
    padding: 20px;
  }

  .calc-input {
    font-size: 18px;
    padding: 10px 12px;
  }

  .calc-result-value {
    font-size: 22px;
  }

  .syringe-svg {
    width: 60px;
  }

  /* At a glance */
  .aag-grid {
    grid-template-columns: 1fr;
  }

  /* Blood grid */
  .blood-grid {
    grid-template-columns: 1fr;
  }

  /* Table scroll */
  .recon-section {
    padding: 20px;
    overflow-x: auto;
  }

  table {
    min-width: 500px;
  }

  /* Disclaimer */
  .disclaimer {
    padding: 16px 20px;
  }

  /* Section */
  .section-header {
    flex-wrap: wrap;
    gap: 8px;
  }

  .section-icon {
    display: none;
  }

  /* CTA */
  .cta-section {
    padding: 28px 20px;
  }

  .cta-btn {
    padding: 12px 28px;
    font-size: 12px;
  }

  /* Peptide page tabs */
  .tab-btn {
    font-size: 11px;
    padding: 8px 14px;
  }

  /* Protocol cards */
  .protocol-card {
    padding: 16px;
  }

  /* Search */
  .search-input {
    font-size: 14px;
    padding: 10px 16px;
  }
}

/* ─── PRINT ─── */
@media print {
  .bg-grid,
  .bg-radial,
  .molecules,
  .site-nav,
  .nav-cats,
  .cta-section,
  .nav-mobile-toggle,
  #disclaimer,
  #site-footer {
    display: none !important;
  }

  body {
    background: white;
    color: black;
  }

  .wrapper {
    max-width: 100%;
    padding: 0;
  }

  .pcard {
    border: 1px solid #ccc;
    break-inside: avoid;
  }
}