/* Responsive: layout adaptations and reduced-motion preferences. */
@media (max-width: 1100px) {
  .site-header {
    grid-template-columns: 1fr auto;
    padding: 0 28px;
  }
  .site-nav {
    display: none;
    position: absolute;
    top: 78px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(8, 13, 19, 0.98);
    border-bottom: 1px solid var(--line);
  }
  .site-nav.open {
    display: flex;
  }
  .site-nav a {
    min-height: 52px;
    border-top: 1px solid var(--line);
  }
  .site-nav a::after {
    display: none;
  }
  .menu-toggle {
    display: block;
    justify-self: end;
  }
  .header-links {
    display: none;
  }
  .hero-main,
  .hero-profile,
  .section-block {
    padding-inline: 32px;
  }
  .project-grid {
    grid-template-columns: 1fr 1fr;
  }
  .project-card:last-child {
    grid-column: 1 / -1;
  }
  .split-section,
  .stack,
  .architecture-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

@media (max-width: 760px) {
  .page-shell {
    border-inline: 0;
  }
  .site-header {
    min-height: 68px;
  }
  .site-nav {
    top: 68px;
  }
  .section-grid,
  .contact {
    grid-template-columns: 1fr;
  }
  .hero-main,
  .hero-profile,
  .section-block {
    padding: 42px 20px;
  }
  .hero-profile {
    border-left: 0;
    border-top: 1px solid var(--line);
  }
  .eyebrow {
    margin-bottom: 28px;
    gap: 18px;
  }
  h1 {
    font-size: clamp(38px, 12vw, 54px);
  }
  .profile-list div {
    grid-template-columns: 105px 1fr;
    gap: 16px;
  }
  .profile-list div:last-child {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .profile-list dd {
    min-width: 0;
  }
  .principles-mini {
    grid-template-columns: repeat(2, 1fr);
    row-gap: 24px;
  }
  .project-grid {
    grid-template-columns: 1fr;
  }
  .case-card-grid {
    grid-template-columns: 1fr;
  }
  .capability-card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .technology-card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .screenshot-grid {
    grid-template-columns: 1fr;
  }
  .project-card:last-child {
    grid-column: auto;
  }
  .section-heading {
    align-items: center;
  }
  .principle-grid {
    grid-template-columns: 1fr;
  }
  .timeline article {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .stack-table div {
    grid-template-columns: 1fr;
    gap: 7px;
  }
  .contact {
    gap: 40px;
  }
  .site-footer {
    grid-template-columns: 1fr 1fr;
  }
  .site-footer > div {
    border-bottom: 1px solid var(--line);
  }
}

@media (max-width: 480px) {
  .brand {
    font-size: 14px;
  }
  h1 {
    overflow-wrap: anywhere;
  }
  .hero-copy {
    font-size: 15px;
  }
  .section-heading {
    align-items: flex-start;
    flex-direction: column;
  }
  .site-footer {
    grid-template-columns: 1fr;
  }
  .site-footer > div {
    border-right: 0;
  }
  .technology-card-grid {
    grid-template-columns: 1fr;
  }
  .capability-card-grid,
  .responsibility-list {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}