/* ── Tablet & below ───────────────────────────────────────── */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: var(--space-12);
  }
  .hero-viz {
    max-width: 420px;
    margin: 0 auto;
    order: -1;
  }
  .hero-copy { max-width: 100%; }

  .about-grid,
  .careers-grid {
    grid-template-columns: 1fr;
    gap: var(--space-12);
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .solutions-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
    row-gap: var(--space-12);
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }
}

/* ── Mobile ───────────────────────────────────────────────── */
@media (max-width: 768px) {
  :root {
    --header-height: 64px;
  }

  .nav-toggle { display: flex; }
  .primary-nav {
    position: fixed;
    top: var(--header-height);
    left: 0; right: 0;
    background: rgba(5, 11, 26, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: var(--space-6) var(--container-pad);
    border-bottom: 1px solid var(--color-line);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition-mid), opacity var(--transition-mid);
  }
  .primary-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .primary-nav ul {
    flex-direction: column;
    gap: var(--space-4);
  }
  .primary-nav a {
    display: block;
    padding: var(--space-3) 0;
    font-size: 1rem;
    border-bottom: 1px solid var(--color-line);
  }
  .primary-nav a::after { display: none; }

  .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); }

  .brand-sub { display: none; }

  .hero {
    padding-top: 110px;
    min-height: auto;
    padding-bottom: var(--space-20);
  }
  .hero-meta {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6);
  }
  .hero-cta { gap: var(--space-3); }
  .hero-cta .btn { width: 100%; justify-content: center; }
  .hero-scroll-hint { display: none; }

  .section-head {
    grid-template-columns: 1fr;
    row-gap: var(--space-3);
    margin-bottom: var(--space-12);
  }
  .section-num {
    grid-row: 1;
    border-right: none;
    border-bottom: 1px solid var(--color-line);
    padding-right: 0;
    padding-bottom: var(--space-3);
    width: max-content;
  }
  .section-sub { grid-column: 1; }

  .solutions-grid {
    grid-template-columns: 1fr;
  }

  .role-list {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-6);
  }
  .footer-meta { text-align: left; }

  .btn {
    padding: 0.85rem 1.4rem;
    font-size: 0.9rem;
  }

  .about-pillars li,
  .service-card,
  .solution,
  .contact-card {
    padding: var(--space-6);
  }
}

/* ── Small mobile ─────────────────────────────────────────── */
@media (max-width: 480px) {
  .metrics-grid { grid-template-columns: 1fr; }
  .hero-meta { grid-template-columns: 1fr; gap: var(--space-4); }
}

/* ── Print / wide screens ─────────────────────────────────── */
@media (min-width: 1600px) {
  :root { --container-max: 1400px; }
}