/*
  RESPONSIVE.CSS
  -----------------------------------------------------------
  Breakpoints, largest screen first:
    1024px  — tablets / small laptops
    768px   — large phones / small tablets
    480px   — phones

  Kept separate from style.css so layout-only overrides for smaller
  screens are easy to find and adjust without hunting through component
  styles.
*/

/* ---------- Tablet (<= 1024px) ---------- */
@media (max-width: 1024px) {
  :root {
    --fs-display: 6rem;
    --fs-h1: 4.4rem;
    --fs-h2: 3.2rem;
  }

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

  .feature-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
  }

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

  .product-detail {
    gap: var(--space-4);
  }

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

  .summary-card {
    position: static;
  }
}

/* ---------- Large phone / small tablet (<= 768px) ---------- */
@media (max-width: 768px) {
  :root {
    --fs-display: 4.6rem;
    --fs-h1: 3.6rem;
    --fs-h2: 2.8rem;
    --fs-h3: 2.2rem;
  }

  .section {
    padding-block: var(--space-5);
  }

  /* Mobile navigation: the link list becomes a full-width dropdown
     panel toggled by the hamburger button. */
  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background-color: var(--color-paper);
    border-bottom: var(--border-hairline);
    max-height: 0;
    overflow: hidden;
    transition: max-height 260ms ease;
  }

  .site-nav.is-open {
    max-height: 40rem;
  }

  .site-nav__link {
    padding: var(--space-2) var(--space-4);
    border-top: var(--border-hairline);
  }

  .site-nav__link::after {
    display: none;
  }

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

  .hero__copy {
    padding-block: var(--space-6) var(--space-4);
    text-align: left;
  }

  .hero__image-wrap {
    min-height: 32rem;
    order: -1;
  }

  .hero__image {
    max-width: 30rem;
  }

  .trust-strip__list {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
  }

  .trust-item {
    border-left: none;
    padding-inline: 0;
  }

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

  .feature-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .cta-band__inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .cta-band input[type="email"] {
    min-width: 0;
    flex: 1;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
  }

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

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

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

  .confirmation__actions {
    flex-direction: column;
  }

  .order-code-card__code {
    font-size: 3.4rem;
  }
}

/* ---------- Phone (<= 480px) ---------- */
@media (max-width: 480px) {
  .content-width {
    padding-inline: var(--space-3);
  }

  .product-grid {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }

  .product-card__name {
    font-size: var(--fs-body);
  }

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

  .section-heading {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-1);
  }

  .cart-line {
    grid-template-columns: 7rem 1fr;
  }

  .cart-line__end {
    grid-column: 1 / -1;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .hero__actions {
    flex-direction: column;
    align-items: stretch;
  }
}