@media (min-width: 720px) {
  .benefit-row { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .bento { grid-template-columns: 1fr 1fr; }
  .service-card.wide { grid-column: span 2; }
  .mini-hero { grid-template-columns: 1.1fr 0.9fr; align-items: center; }
  .footer-grid { grid-template-columns: 1.3fr 0.8fr 1fr; }
  .contact-grid { grid-template-columns: 0.85fr 1.15fr; align-items: start; }
  .final-cta { padding: 56px 48px; }
}

@media (min-width: 960px) {
  .section { padding: 112px 0; }
  .nav-toggle { display: none; }
  .nav {
    position: static;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0;
    border: 0;
    background: transparent;
    box-shadow: none;
    opacity: 1;
    visibility: visible;
    transform: none;
  }
  .nav-list { display: flex; gap: 2px; }
  .nav-list a { padding: 8px 10px; }
  .nav .btn { width: auto; margin-left: 8px; }
  .hero { padding-top: 8px; }
  .hero-grid, .about-grid, .why-grid {
    grid-template-columns: 1.05fr 0.95fr;
    align-items: center;
    gap: 48px;
  }
  .why-grid { align-items: start; }
  .why-intro { position: sticky; top: 108px; }
  .bento { grid-template-columns: repeat(3, 1fr); }
  .case {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 28px;
    padding: 18px;
    align-items: center;
  }
  .case:nth-child(even) .case-visual { order: 2; }
  .case-body { padding: 12px 18px; }
  .steps { grid-template-columns: repeat(4, 1fr); gap: 18px; }
  .step {
    padding: 28px 16px 0 0;
    border-left: 0;
    border-top: 1px solid var(--line-strong);
  }
  .step-num { left: 0; top: -15px; }
  .footer-grid { grid-template-columns: 1.4fr 0.7fr 1fr 0.8fr; }
  .stage { margin-right: 12px; }
}

@media (max-width: 420px) {
  .wa-float { width: 48px; padding: 0; justify-content: center; }
  .wa-float span:last-child {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
  }
  .phone { width: 132px; }
  .hero-actions .btn { width: 100%; }
}