@media screen and (max-width: 1200px) {
  .page-shell {
    width: min(var(--container), calc(100% - 1.25rem));
  }

  #profile .section-inner,
  .grid-two,
  .education-grid,
  .contact-shell {
    grid-template-columns: 1fr;
  }

  .strength-row {
    grid-template-columns: 1fr;
  }

  .profile-media {
    min-height: 340px;
  }
}

@media screen and (max-width: 980px) {
  #desktop-nav {
    display: none;
  }

  #hamburger-nav {
    display: flex;
  }

  .hero-pillars,
  .grid-three {
    grid-template-columns: 1fr;
  }

  .hero-pillar {
    border-right: none;
    border-bottom: 1px solid var(--line);
  }

  .hero-pillar:last-child {
    border-bottom: none;
  }

  .about-pillars {
    margin-top: 0;
  }

  .about-pillar {
    grid-template-columns: 1fr;
    gap: 0.55rem;
  }

  .timeline-card {
    grid-template-columns: 1fr;
  }

  .ai-assurance-grid {
    grid-template-columns: 1fr;
  }

  .timeline-meta {
    padding-right: 0;
    padding-bottom: 0.8rem;
    border-right: none;
    border-bottom: 1px solid rgba(17, 24, 33, 0.08);
  }

  .footer-top {
    flex-direction: column;
  }

  footer .nav-links-container {
    width: 100%;
  }

  footer .nav-links {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.8rem 1rem;
  }

  footer .nav-links a {
    display: block;
  }
}

@media screen and (max-width: 720px) {
  .page-shell {
    width: min(var(--container), calc(100% - 0.9rem));
    margin: 0.45rem auto;
    padding: 0.4rem 0 5rem;
  }

  #desktop-nav,
  #hamburger-nav {
    top: 0.45rem;
    padding: 0.9rem 1rem;
    border-radius: 28px;
  }

  .logo {
    font-size: 1.5rem;
  }

  .section-inner {
    padding: 1.3rem 1.15rem;
  }

  #profile .section-inner {
    min-height: auto;
  }

  .hero-title {
    max-width: none;
    font-size: clamp(3rem, 13vw, 4.5rem);
    line-height: 0.94;
    white-space: normal;
  }

  .section-title {
    font-size: clamp(2rem, 11vw, 3rem);
    line-height: 0.96;
  }

  .hero-role {
    font-size: 0.8rem;
    letter-spacing: 0.14em;
  }

  .hero-summary,
  .section-copy,
  .glass-card p,
  .about-pillar p,
  .timeline-card li,
  .strength-row li,
  .contact-panel p,
  .contact-value,
  .contact-link span {
    font-size: 0.95rem;
  }

  .hero-actions,
  .contact-actions,
  .socials-row {
    flex-direction: column;
  }

  .btn,
  .social-chip {
    width: 100%;
  }

  .profile-media {
    min-height: 0;
  }

  .profile-caption {
    flex-direction: column;
    align-items: flex-start;
  }

  .feature-item {
    grid-template-columns: 1fr;
    gap: 0.45rem;
  }

  .feature-index {
    width: 2rem;
    height: 2rem;
  }

  .timeline-card,
  .glass-card,
  .about-pillar,
  .credential-card,
  .contact-panel,
  .contact-links {
    padding: 1.25rem;
  }

  .about-pillar {
    padding-right: 0;
    padding-left: 0;
  }

  .ai-assurance-card {
    padding: 0.95rem;
  }

  .strength-list {
    margin-top: 1.2rem;
  }

  .strength-row {
    grid-template-columns: 1fr;
    gap: 0.85rem;
  }

  .contact-link {
    flex-direction: column;
    align-items: flex-start;
  }

  .cert-item {
    flex-direction: column;
  }

  .cert-meta {
    text-align: left;
  }

  .contact-panel .btn-secondary {
    background: rgba(255, 255, 255, 0.12);
  }
}

@media screen and (max-width: 520px) {
  .hero-topline,
  .section-kicker,
  .eyebrow-value,
  .timeline-label,
  .contact-label {
    letter-spacing: 0.12em;
  }

  footer .nav-links {
    grid-template-columns: 1fr;
  }

  .hero-pillar {
    min-height: 4rem;
    padding: 0.9rem 0;
  }

  .hero-pillar span {
    font-size: 1.35rem;
  }

  .menu-links {
    min-width: 190px;
  }

  .hero-topline {
    width: 100%;
    font-size: 0.68rem;
    letter-spacing: 0.09em;
  }

  .contact-link {
    gap: 0.5rem;
  }
}