/* Responsive layer — mobile-first adjustments layered over style.css */

@media (max-width: 1180px) {
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .chip-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .timeline { grid-template-columns: repeat(3, minmax(0, 1fr)); row-gap: 2.5rem; }
  .timeline::before { display: none; }
  .step { padding-top: 2.2rem; }
}

@media (max-width: 980px) {
  :root { --shell: min(1560px, 100% - 8vw); }

  .nav-toggle { display: block; }
  .nav {
    position: fixed;
    inset: 0 0 0 auto;
    width: min(360px, 86vw);
    background: var(--navy-900);
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 1.4rem;
    padding: 5rem 2rem;
    transform: translateX(100%);
    visibility: hidden;
    transition: transform 0.45s var(--ease), visibility 0.45s var(--ease);
    box-shadow: -30px 0 60px -40px #000;
  }
  .nav.is-open { transform: translateX(0); visibility: visible; }
  .nav a { color: rgba(255, 255, 255, 0.9); font-size: 1.05rem; }
  .nav a.btn--header { background: var(--bronze); color: var(--navy-900); width: 100%; }
  body.nav-open { overflow: hidden; }

  .hero__grid { grid-template-columns: 1fr; }
  .hero__media { order: -1; }
  .hero__badge { left: auto; right: 1rem; bottom: -1.2rem; }
  .split,
  .split--form { grid-template-columns: 1fr; }
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cta-band__inner { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 720px) {
  .grid--2,
  .grid--3,
  .grid--4 { grid-template-columns: 1fr; }
  .timeline { grid-template-columns: 1fr; row-gap: 1.8rem; }
  .step { padding-top: 0; padding-left: 2rem; }
  .step::before { top: 8px; }
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .chip-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .field-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .btn { width: 100%; }
  .btn-row { gap: 0.7rem; }
}

@media (max-width: 400px) {
  :root { --shell: min(1560px, 100% - 2.4rem); }
  .brand__tag { display: none; }
  .brand__logo { height: 38px; }
  .hero__badge { position: static; margin-top: 1rem; max-width: none; }
}