@media (min-width: 1700px) {
  :root { --max: 1360px; }
  html { font-size: 17px; }
}

@media (max-width: 1024px) {
  .hero { min-height: 0; }
  .hero-inner { grid-template-columns: 1fr; }
  .showcase { max-width: 600px; width: 100%; }
  .about { grid-template-columns: 1fr; }
  .services { grid-template-columns: 1fr; }
  .services .section-head { position: static; margin-bottom: 36px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 860px) {
  .nav-toggle { display: inline-flex; }
  .nav {
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    padding: 12px var(--gutter) 24px;
    border-bottom: 1px solid var(--line);
    background: rgba(3, 7, 17, 0.96);
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s;
  }
  .site-header.is-open .nav { opacity: 1; visibility: visible; transform: none; }
  .site-header.is-open { background: rgba(3, 7, 17, 0.96); }
  .nav-list { flex-direction: column; align-items: stretch; gap: 0; }
  .nav-list a { display: block; padding: 14px 0; font-size: 1.05rem; border-bottom: 1px solid var(--line); }
  .nav-list a::after { display: none; }
  .nav-list a[aria-current="true"] { color: var(--cyan); }
  .nav-cta { min-height: 50px; margin-top: 12px; }
}

@media (max-width: 640px) {
  .hero-actions .btn { width: 100%; }
  :root { --cell: 44px; }
  .hero-tag { margin-bottom: 20px; }
  .showcase-cap { flex-direction: column; align-items: flex-start; gap: 10px; }
  .browser-url { max-width: none; }
  .skill-group { padding: 22px; }
  .projects { grid-template-columns: 1fr; }
  .service-list li { gap: 16px; padding: 22px 0; }
  .tile-lg { width: 48px; height: 48px; }
  .contact { border-radius: 22px; }
  .contact-links { margin-top: 36px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 380px) {
  :root { --gutter: 16px; }
  .hero h1 { font-size: 2.2rem; }
}