@media (max-width: 900px) {
  .header-nav {
    display: none;
  }

  .burger {
    display: flex;
  }

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

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

  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2px;
  }

  .flow-pipeline {
    flex-direction: column;
    align-items: center;
    gap: 0;
  }

  .flow-connector {
    width: 2px;
    height: 32px;
    padding-top: 0;
  }

  .flow-line {
    width: 2px;
    height: 100%;
  }

  .flow-line::after {
    width: 100%;
    height: 100%;
    animation: flow-pulse-v 3s ease-in-out infinite;
  }

  @keyframes flow-pulse-v {
    0% { top: -100%; left: 0; }
    100% { top: 100%; left: 0; }
  }

  .section {
    padding: 56px 0;
  }

  /* Blog grid — single column on tablets */
  .blog-grid {
    grid-template-columns: 1fr;
  }

  /* Order page — stack grid */
  .order-grid {
    grid-template-columns: 1fr;
    justify-items: center;
  }

  .order-detail-panel {
    width: 100%;
  }

  /* Mobile nav — language dropdown opens left */
  .mobile-nav .lang-dropdown {
    right: auto;
    left: 0;
  }
}

@media (max-width: 600px) {
  .container {
    padding: 0 16px;
  }

  .hero {
    padding-top: calc(var(--header-height) + 24px);
  }

  .hero-title {
    font-size: 1.5rem;
  }

  .hero-desc {
    font-size: 0.88rem;
  }

  /* Form — reorder: address field, additional, add-btn, hints, submit */
  #form-fields {
    display: flex;
    flex-direction: column;
    gap: 12px;
  }

  .form-row {
    display: contents;
  }

  .form-field-group {
    order: 1;
  }

  #additional-wrap {
    order: 2;
  }

  .hero-form-meta {
    order: 3;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .hero-submit {
    order: 4;
    width: 100%;
  }

  #form-error {
    order: 5;
  }

  .hero-hints {
    flex-direction: column;
    gap: 4px;
  }

  .currency-btn {
    padding: 7px 12px;
    font-size: 0.75rem;
  }

  .currency-notice {
    padding: 16px;
    gap: 10px;
  }

  .currency-notice-body p {
    font-size: 0.85rem;
  }

  .section {
    padding: 40px 0;
  }

  /* Stats — single column on small screens */
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .stat-block {
    padding: 20px 16px;
  }

  .stat-value {
    font-size: 1.8rem;
  }

  /* Flow */
  .flow-node {
    width: 120px;
  }

  .flow-label {
    font-size: 0.75rem;
  }

  .flow-sub {
    font-size: 0.68rem;
  }

  /* Section headings */
  .section-heading {
    font-size: 1.3rem;
  }

  .section-description {
    font-size: 0.88rem;
  }

  /* Advantages */
  .advantage-card {
    padding: 20px 18px;
  }

  .card-title {
    font-size: 0.95rem;
  }

  .card-desc {
    font-size: 0.88rem;
  }

  /* How it works */
  .how-card {
    padding: 18px;
  }

  .how-content h3 {
    font-size: 0.88rem;
  }

  .how-content p {
    font-size: 0.82rem;
  }

  /* Contact */
  .contact-card {
    padding: 12px 20px;
    font-size: 0.85rem;
  }

  /* Page section (blog, single post, 404) — prevent header overlap */
  .page-section {
    padding-top: calc(var(--header-height) + 32px);
    min-height: calc(100vh - var(--header-height) - 60px);
  }

  .page-section .section-heading {
    font-size: 1.2rem;
    line-height: 1.3;
  }

  .blog-card-body {
    padding: 16px;
  }

  .blog-card-title {
    font-size: 0.95rem;
  }

  .blog-card-excerpt {
    font-size: 0.82rem;
  }

  .page-content {
    font-size: 0.92rem;
    line-height: 1.7;
  }

  /* Post navigation */
  .post-nav {
    flex-direction: column !important;
    gap: 20px !important;
  }

  .post-nav > div:last-child {
    text-align: left !important;
  }

  /* Order page mobile */
  .order-page {
    padding-top: calc(var(--header-height) + 24px);
  }

  .status-hub {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 16px;
  }

  .status-hub-title {
    font-size: 1.2rem;
  }

  .status-hub-text {
    text-align: center;
  }

  .order-steps {
    flex-wrap: wrap;
    justify-content: center;
    gap: 4px 0;
    padding: 12px 0;
  }

  .order-step {
    flex: 0 0 auto;
    max-width: 70px;
  }

  .order-step span {
    font-size: 0.5rem;
    white-space: normal;
    text-align: center;
    line-height: 1.3;
  }

  .step-line {
    min-width: 12px;
  }

  .order-grid {
    padding: 20px;
  }

  .qr-inner canvas,
  .qr-inner svg {
    width: 140px !important;
    height: 140px !important;
  }

  .order-note {
    font-size: 0.75rem;
    padding: 12px 14px;
  }
}