/* ==========================================================================
   NOVA HOME — Responsive breakpoints
   ========================================================================== */

/* ---------- Tablet (<= 1024px) ---------- */
@media (max-width: 1024px) {
  section {
    padding: 70px 0;
  }

  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 28px 24px;
  }

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

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

  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-split {
    gap: 44px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px 32px;
  }

  .article-layout {
    grid-template-columns: 1fr;
  }

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

  .product-detail {
    grid-template-columns: 1fr;
    gap: 36px;
  }

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

  .main-nav {
    gap: 22px;
  }
}

/* ---------- Small tablet / large mobile (<= 860px) ---------- */
@media (max-width: 860px) {
  .main-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    background: var(--color-bg-alt);
    padding: 20px 24px 40px;
    transform: translateX(-100%);
    transition: transform var(--transition-base);
    overflow-y: auto;
    z-index: 400;
  }

  .main-nav.is-open {
    transform: translateX(0);
  }

  .main-nav a {
    width: 100%;
    padding: 14px 0;
    border-bottom: 1px solid var(--color-border);
    font-size: 1.05rem;
  }

  .header-actions .header-phone span {
    display: none;
  }

  .header-actions .header-phone {
    width: 42px;
    height: 42px;
    padding: 0;
    justify-content: center;
  }

  .nav-toggle {
    display: flex;
  }

  .hero-title {
    font-size: clamp(2.2rem, 7vw, 3rem);
  }

  .cta-band {
    flex-direction: column;
    text-align: center;
    padding: 44px 32px;
  }
}

/* ---------- Mobile (<= 640px) ---------- */
@media (max-width: 640px) {
  section {
    padding: 56px 0;
  }

  .container {
    padding: 0 18px;
  }

  h2 {
    font-size: 1.7rem;
  }

  .grid-4,
  .grid-3,
  .feature-grid,
  .stats-grid,
  .process-grid {
    grid-template-columns: 1fr;
  }

  .about-split {
    grid-template-columns: 1fr;
  }

  .about-media {
    aspect-ratio: 4 / 3;
  }

  .hero {
    height: 92vh;
    min-height: 520px;
  }

  .hero-text {
    max-width: 100%;
  }

  .hero-pagination {
    display: none;
  }

  .hero-arrows {
    bottom: 20px;
    right: 18px;
  }

  .hero-nav-btn {
    width: 40px;
    height: 40px;
  }

  .projects-head,
  .news-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  .testimonial-track {
    flex-direction: column;
  }

  .testimonial-card {
    padding: 30px 26px;
  }

  .testimonial-arrows {
    flex-direction: row;
  }

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

  .site-header .container {
    gap: 12px;
  }

  .brand-name {
    font-size: 1.05rem;
  }
}