@media (max-width: 980px) {
  .main-nav {
    margin-left: 0;
  }

  .navbar-collapse.main-nav {
    margin-top: 14px;
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.98);
  }

  .nav-link {
    justify-content: flex-start;
  }

  .login-link {
    justify-content: center;
    margin: 8px 0 0;
  }

  .nav-account-actions {
    width: 100%;
    flex-wrap: wrap;
    gap: 8px;
    margin: 10px 0 0;
  }

  .nav-account-icons {
    gap: 8px;
  }

  .nav-user {
    justify-content: flex-start;
    margin: 0;
  }

  .nav-account-icons .nav-icon-link {
    width: 38px;
    justify-content: center;
    padding: 0;
  }

  .menu-toggle {
    display: grid;
  }

  .hero-content {
    grid-template-columns: 1fr;
    gap: 42px;
    text-align: center;
  }

  .hero-copy,
  .hero-description {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-visual {
    width: min(360px, 82vw);
    margin: 0 auto;
  }

  .category-grid,
  .product-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .process-layout,
  .stl-cta-content {
    grid-template-columns: 1fr;
  }

  .stl-cta-content .btn {
    width: fit-content;
  }

  .shop-sidebar {
    position: static;
  }

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

  .about-panel {
    min-height: 300px;
  }
}

@media (max-width: 560px) {
  .container {
    width: min(100% - 28px, 1120px);
  }

  .brand-text {
    font-size: 1.08rem;
  }

  .hero {
    padding-top: 118px;
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

  .section {
    padding: 64px 0;
  }

  .split-heading {
    display: block;
  }

  .text-link {
    display: inline-flex;
    margin-top: 18px;
  }

  .category-grid,
  .product-grid {
    grid-template-columns: 1fr;
  }

  .product-preview {
    min-height: 190px;
  }

  .step-item {
    grid-template-columns: 42px minmax(0, 1fr);
    padding: 18px;
  }

  .step-item span {
    width: 42px;
    height: 42px;
  }

  .stl-cta-content {
    padding: 26px;
  }

  .stl-cta-content .btn {
    width: 100%;
  }

  .page-hero {
    padding: 128px 0 54px;
  }

  .shop-toolbar,
  .footer-content {
    align-items: flex-start;
    flex-direction: column;
  }

  .about-copy,
  .about-panel,
  .upload-form,
  .contact-form,
  .contact-card {
    padding: 22px;
  }

  .viewer-placeholder {
    min-height: 360px;
  }

  .viewer-area.is-expanded {
    inset: 10px;
    padding: 12px;
  }
}