@media screen and (max-width:1050px){
  .contact-combined{grid-template-columns:1fr;gap:32px;}
  .contact-wrapper{grid-template-columns:1fr;gap:32px;}
}
@media screen and (max-width:900px){
  #hero{grid-template-columns:1fr;text-align:center;padding-top:100px;gap:32px;}
  .hero-visual{order:-1;}
  .profile-ring{width:120px;height:120px;}
  .hero-tags{max-width:100%;justify-content:center;}
  .hero-actions,.hero-socials,.hero-eyebrow{justify-content:center;}
  .about-grid{grid-template-columns:1fr;}
  .projects-grid{grid-template-columns:1fr;}
  #skills .skills-grid{grid-template-columns:1fr;}
  #skills .skill-category:nth-child(3n+1),#skills .skill-category:nth-child(3n+2){border-right:none;}
  #skills .skill-category{border-bottom:1px solid var(--navy-surface)!important;}
  #skills .skill-category:last-child{border-bottom:none!important;}
  #chat-panel{right:12px;left:12px;width:auto;bottom:calc(88px + env(safe-area-inset-bottom, 0px));}
  #chat-toggle{right:16px;bottom:calc(20px + env(safe-area-inset-bottom, 0px));}
  .project-arch-diagram{overflow-x:auto;}
  .arch-row{flex-wrap:nowrap;min-width:max-content;}
}
@media screen and (max-width:600px){
  section{padding:70px 5vw;}
  .title{font-size:28px;}
  .hero-name{font-size:34px;}
  #desktop-nav{display:none;}
  #hamburger-nav{display:flex;justify-content:space-between;align-items:center;padding:0 5vw;height:60px;position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(13,17,23,.95);border-bottom:1px solid var(--navy-border);}
  .hamburger-icon{display:flex;flex-direction:column;gap:5px;cursor:pointer;padding:10px;margin:-10px;}
  .hamburger-icon span{width:24px;height:1.5px;background:var(--text-primary);transition:transform .3s,opacity .3s;}
  .menu-links{display:none;position:absolute;top:60px;left:0;right:0;background:var(--navy-surface);border-bottom:1px solid var(--navy-border);padding:16px 5vw;}
  .menu-links.open{display:block;}
  .menu-links ul{list-style:none;display:flex;flex-direction:column;gap:16px;}
  .menu-links a{font-size:14px;color:var(--text-muted);text-decoration:none;}
  .about-cards{grid-template-columns:1fr;}
  #skills .icon-item{width:70px;padding:12px 8px 10px;}
  #skills .icon-item i{font-size:28px;}
  .footer-inner{flex-direction:column;gap:16px;text-align:center;}
  .footer-inner nav{display:flex;flex-wrap:wrap;justify-content:center;gap:4px;}
  #chat-toggle{bottom:calc(24px + env(safe-area-inset-bottom, 0px));right:16px;}
  #chat-panel{bottom:calc(92px + env(safe-area-inset-bottom, 0px));right:12px;left:12px;width:auto;max-height:calc(100svh - 120px);max-height:calc(100vh - 120px);}
  .project-full{padding:20px 18px;}
  .decision-card p{font-size:11.5px;}
}