/* ==========================================================================
   Responsive
   ========================================================================== */

/* ---------- Laptop / small desktop ---------- */
@media (max-width: 1080px) {
  .skills-grid { grid-template-columns: repeat(2, 1fr); }
  .achievement-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-grid { grid-template-columns: repeat(2, 1fr); gap: 40px; }
  .contact-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ---------- Tablet ---------- */
@media (max-width: 900px) {
  .hero__inner {
    grid-template-columns: 1fr;
  }

  .hero__visual {
    order: -1;
    max-width: 380px;
    margin: 0 auto 20px;
  }

  .about__grid { grid-template-columns: 1fr; }
  .about__card { order: -1; }

  .project-grid { grid-template-columns: 1fr; }
  .site-grid { grid-template-columns: 1fr; }
  .repo-grid { grid-template-columns: 1fr; }
  .service-grid { grid-template-columns: repeat(2, 1fr); }

  .cursor-glow { display: none; }
}

/* ---------- Mobile nav ---------- */
@media (max-width: 780px) {
  .nav__toggle {
    display: flex;
  }

  .nav__links {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: rgba(9, 12, 20, 0.98);
    border-bottom: 1px solid var(--border);
    padding: 10px 24px 20px;
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
  }

  .nav__links.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav__links li {
    width: 100%;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
  }

  .nav__links li:last-child { border-bottom: none; }

  .nav__link--cta {
    display: inline-flex;
  }

  .nav__toggle.is-active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav__toggle.is-active span:nth-child(2) { opacity: 0; }
  .nav__toggle.is-active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
}

/* ---------- Mobile ---------- */
@media (max-width: 620px) {
  .container { padding-inline: 18px; }

  .section { padding: 84px 0; }

  .hero__actions { flex-direction: column; align-items: stretch; }
  .hero__stats { gap: 26px; flex-wrap: wrap; }

  .skills-grid { grid-template-columns: 1fr; }
  .achievement-grid { grid-template-columns: 1fr; }
  .service-grid { grid-template-columns: 1fr; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); gap: 28px; }
  .contact-grid { grid-template-columns: 1fr; }

  .experience__list,
  .timeline {
    padding-left: 24px;
  }

  .experience__marker,
  .timeline__dot {
    left: -31px;
  }

  .cert-placeholder {
    flex-direction: column;
    text-align: center;
  }

  .back-to-top {
    right: 16px;
    bottom: 16px;
  }
}

/* ---------- Ultra-wide ---------- */
@media (min-width: 1600px) {
  :root {
    --container-width: 1360px;
  }

  body {
    font-size: 17px;
  }
}