/* ============================================
   Responsive Styles
   ============================================ */

/* Max Width 1440px+ */
@media (min-width: 1440px) {
  .container {
    max-width: 1320px;
  }
}

/* Tablet Landscape / Small Desktop (≤ 1024px) */
@media (max-width: 1024px) {
  :root {
    --font-h1: 40px;
    --font-h2: 30px;
    --font-h3: 22px;
    --space-3xl: 80px;
    --space-xl: 48px;
  }
  .header__nav {
    display: none;
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-white);
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-md);
    overflow-y: auto;
    z-index: 999;
  }
  .header__nav.open {
    display: flex;
  }
  .header__nav > li {
    width: 100%;
    height: auto;
  }
  .header__nav > li > a {
    padding: var(--space-sm);
    font-size: var(--font-body-l);
    border-bottom: 1px solid var(--color-border-light);
  }
  .header__nav > li > a::after {
    display: none;
  }
  .header__nav .dropdown {
    position: static;
    transform: none;
    opacity: 1;
    visibility: visible;
    box-shadow: none;
    border: none;
    padding-left: var(--space-md);
    display: none;
  }
  .header__nav > li.open-dropdown .dropdown {
    display: block;
  }
  .header__menu-toggle {
    display: flex;
  }
  .header__search input {
    width: 160px;
  }
  .header__search input:focus {
    width: 180px;
  }
  .about .container {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
  .about__image {
    max-width: 500px;
    margin: 0 auto;
  }
  .products__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .feature__grid {
    grid-template-columns: 1fr;
  }
  .news__grid {
    grid-template-columns: 1fr;
  }
  .news__featured {
    grid-row: auto;
    aspect-ratio: 16/9;
  }
  .news__featured img {
    position: static;
  }
  .footer__main .container {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
  }
  .stats__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
  }
  .stats__item::after {
    display: none;
  }
}

/* Tablet Portrait (≤ 768px) */
@media (max-width: 768px) {
  :root {
    --font-h1: 32px;
    --font-h2: 26px;
    --font-h3: 20px;
    --font-body-l: 16px;
    --space-3xl: 60px;
    --space-xl: 40px;
    --space-lg: 32px;
    --header-height: 64px;
  }
  .topbar {
    display: none;
  }
  .header__search {
    display: none;
  }
  .hero {
    min-height: 0;
    max-height: none;
  }
  .products__grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin: 0 auto;
  }
  .products__tabs {
    gap: 6px;
  }
  .products__tab {
    padding: 8px 16px;
    font-size: var(--font-caption);
  }
  .footer__main .container {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
  .stats__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .stats__item::after {
    display: none;
  }
  .stats__number {
    font-size: 36px;
  }
  .news__item {
    flex-direction: column;
  }
  .news__item-image {
    width: 100%;
    height: 200px;
  }
  .back-to-top {
    right: 16px;
    bottom: 16px;
    width: 40px;
    height: 40px;
  }
}

/* Mobile (≤ 480px) */
@media (max-width: 480px) {
  :root {
    --font-h1: 28px;
    --font-h2: 24px;
    --space-3xl: 48px;
  }
.hero {
    min-height: 0;
    max-height: none;
  }
  .container {
    padding: 0 16px;
  }
}