/* =========================================================
   HARSHITETHIC — MOBILE / RESPONSIVE OVERRIDES
   Designed to preserve the desktop art direction while
   making the portfolio comfortable on phones and tablets.
   ========================================================= */

html { -webkit-text-size-adjust: 100%; }
body { min-width: 0; }

img, svg, canvas, video, iframe { max-width: 100%; }

@media (max-width: 1100px) {
  .desktop-nav { gap: 18px; }
  .nav { padding: 0 28px; }
  .hero { grid-template-columns: 1fr; padding-top: 140px; }
  .hero-copy { max-width: 760px; }
  .hero-visual { min-height: 520px; margin-top: -10px; }
  .stack-layout,
  .contact-grid { grid-template-columns: 1fr; gap: 45px; }
  .stack-cloud { min-height: 0; }
  .project-feature { grid-template-columns: 1fr; }
  .contact-copy h3 { font-size: clamp(44px, 7vw, 58px); }
}

@media (max-width: 760px) {
  .nav {
    height: 64px;
    top: 10px;
    left: 12px;
    right: 12px;
    padding: 0 12px 0 14px;
    border: 1px solid rgba(25,214,160,.18);
    border-radius: 20px;
    background: rgba(5,12,10,.82);
    backdrop-filter: blur(18px);
    box-shadow: 0 14px 40px rgba(0,0,0,.24);
  }

  .brand { gap: 9px; font-size: 13px; letter-spacing: .7px; }
  .brand-mark { width: 36px; height: 36px; border-radius: 11px; }
  .nav-actions { gap: 6px; }
  .nav-actions > a:not(.cv-btn) { display: none; }
  .cv-btn { display: none; }
  .menu-btn { display: grid; }
  .desktop-nav { display: none; }

  .mobile-menu {
    position: fixed;
    top: 82px;
    left: 12px;
    right: 12px;
    z-index: 89;
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 10px;
    border: 1px solid rgba(25,214,160,.18);
    border-radius: 20px;
    background: rgba(5,12,10,.94);
    backdrop-filter: blur(22px);
    box-shadow: 0 24px 70px rgba(0,0,0,.35);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px) scale(.98);
    transition: .25s ease;
  }
  .mobile-menu.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
  }
  .mobile-menu a {
    display: block;
    padding: 15px 16px;
    border-radius: 13px;
    font-size: 14px;
  }
  .mobile-menu a:active,
  .mobile-menu a:hover { background: rgba(25,214,160,.09); color: var(--accent); }

  .section {
    width: 100%;
    padding: 92px 18px;
  }
  .hero {
    min-height: auto;
    padding: 132px 18px 75px;
    gap: 35px;
  }
  .eyebrow { font-size: 9px; letter-spacing: 1.3px; }
  .hero h1 {
    font-size: clamp(46px, 14vw, 72px);
    line-height: .94;
    letter-spacing: -3px;
    margin: 18px 0 20px;
  }
  .hero-text {
    font-size: 15px;
    line-height: 1.7;
  }
  .hero-buttons {
    flex-direction: column;
    align-items: stretch;
    gap: 9px;
    margin-top: 24px;
  }
  .btn { justify-content: space-between; min-height: 52px; }
  .availability { font-size: 9px; margin-top: 18px; }

  .hero-visual {
    min-height: 400px;
    width: 100%;
    transform: scale(.9);
    transform-origin: center top;
    margin-bottom: -45px;
  }
  .hero-core { width: 150px; height: 150px; }
  .hero-core .core-logo { font-size: 44px; }
  .hero-visual:before { width: 320px; height: 320px; }
  .signal-card { width: 190px; padding: 13px; }
  .signal-eth { left: 0; top: 18px; }
  .signal-ai { right: 0; top: 125px; }
  .signal-web { right: 8px; bottom: 15px; }
  .hero-caption { font-size: 8px; bottom: -8px; }

  .scroll-cue { display: none; }

  .metrics {
    width: calc(100% - 36px);
    margin-bottom: 15px;
    grid-template-columns: repeat(2, 1fr);
    border-radius: 15px;
  }
  .metrics > div {
    padding: 18px 14px;
    min-height: 80px;
  }
  .metrics strong { font-size: 25px; }
  .metrics span { font-size: 8px; }
  .metrics small { font-size: 7px; }

  .section-head {
    gap: 12px;
    margin-bottom: 38px;
  }
  .section-head > span { font-size: 9px; }
  .section-head h2 {
    font-size: clamp(34px, 10vw, 50px);
    letter-spacing: -1.8px;
  }

  .about-grid,
  .stack-layout,
  .contact-grid { gap: 34px; }
  .about-lead h3 { font-size: 37px; letter-spacing: -1.8px; }
  .about-copy p { font-size: 15px; line-height: 1.75; }
  .brand-note { padding: 18px; border-radius: 16px; }
  .brand-note p { font-size: 14px; line-height: 1.65; }

  .stack-intro h3 {
    font-size: clamp(31px, 8.5vw, 42px);
    letter-spacing: -1.4px;
  }
  .stack-cloud {
    padding: 20px;
    gap: 7px;
    justify-content: flex-start;
    border-radius: 19px;
  }
  .stack-cloud span {
    padding: 10px 11px;
    font-size: 9px;
    border-radius: 8px;
  }

  .timeline { margin-left: 0; }
  .timeline-item {
    grid-template-columns: 1fr;
    gap: 9px;
    padding-left: 25px;
  }
  .timeline-item .dot { left: 0; }
  .timeline-item .time { font-size: 8px; }
  .timeline-card {
    padding: 20px;
    border-radius: 16px;
  }
  .timeline-card h3 { font-size: 20px; }
  .timeline-card p { font-size: 13px; }

  .project-grid { grid-template-columns: 1fr; gap: 14px; }
  .project-card { padding: 18px; border-radius: 16px; }
  .mini-ui { height: 150px; }
  .project-feature { padding: 20px; border-radius: 18px; }

  .lab-intro {
    grid-template-columns: 1fr !important;
    gap: 25px !important;
  }
  .lab-meta {
    display: grid !important;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
  }
  .lab-meta > div {
    padding: 12px !important;
    border: 1px solid var(--line);
    border-radius: 12px;
  }
  .lab-frame-wrap { border-radius: 16px; }
  .lab-frame-bar {
    padding: 10px 12px;
    gap: 8px;
    font-size: 8px;
  }
  .lab-frame-bar b { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .lab-frame-bar a { display: none; }
  .lab-frame {
    height: 720px !important;
    min-height: 720px !important;
  }

  .contact-copy h3 {
    font-size: clamp(42px, 12vw, 60px);
    line-height: .96;
    letter-spacing: -2.5px;
  }
  .contact-copy > p:not(.mono) { font-size: 15px; }
  .email-link { font-size: 14px; max-width: 100%; overflow-wrap: anywhere; }
  .socials { flex-wrap: wrap; gap: 14px; }
  .contact-form { padding: 18px; border-radius: 16px; }
  .form-row { grid-template-columns: 1fr !important; gap: 0 !important; }
  .contact-form input,
  .contact-form textarea { font-size: 16px; } /* prevents iOS zoom */
  .contact-form textarea { min-height: 150px; }
  .contact-form .submit { width: 100%; }

  footer {
    padding: 30px 18px !important;
    flex-direction: column !important;
    align-items: flex-start !important;
    gap: 10px !important;
    font-size: 8px !important;
  }

  .cursor-glow { display: none; }
  .noise { opacity: .018; }
}

@media (max-width: 390px) {
  .brand > span:last-child { font-size: 11px; }
  .hero h1 { font-size: 44px; }
  .hero-visual { transform: scale(.78); margin-left: -10%; margin-right: -10%; }
  .metrics > div { padding: 14px 10px; }
  .metrics strong { font-size: 22px; }
  .stack-cloud span { font-size: 8px; padding: 9px 9px; }
  .lab-frame { height: 690px !important; min-height: 690px !important; }
}