/* ===== CSS/responsive.css ===== */
@media (max-width: 1024px) {
  .footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: 30px;
  }
  .footer-credit {
    text-align: left;
  }
}

@media (max-width: 820px) {
  .header-inner {
    flex-direction: column;
    align-items: stretch;
  }
  .nav {
    justify-content: space-between;
  }
  .nav-list {
    order: 2;
    width: 100%;
    justify-content: center;
  }
  .nav-search {
    order: 1;
    flex: 1;
  }
  .nav-search input {
    min-width: 120px;
    width: 100%;
  }
  .app-grid {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  }
}

@media (max-width: 640px) {
  .nav-list {
    display: none;
    flex-direction: column;
    background: var(--bg-secondary);
    padding: 16px;
    border-radius: var(--radius);
    position: absolute;
    top: 70px;
    right: 16px;
    min-width: 180px;
    border: 1px solid rgba(0, 188, 212, 0.12);
  }
  .nav-list.open {
    display: flex;
  }
  .mobile-menu-btn {
    display: block;
  }
  .hero-slide {
    min-width: 260px;
    padding: 20px;
  }
  .hero-slide img {
    width: 56px;
    height: 56px;
  }
  .hero-slide .slide-info h3 {
    font-size: 15px;
  }
  .section-header h2 {
    font-size: 18px;
  }
  .app-grid {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 14px;
  }
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .footer-credit {
    text-align: center;
  }
  .category-filter {
    gap: 6px;
  }
  .cat-btn {
    padding: 6px 14px;
    font-size: 12px;
  }
}

@media (max-width: 400px) {
  .container {
    padding: 0 14px;
  }
  .app-grid {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }
  .app-card {
    padding: 14px 10px;
  }
  .app-card .card-icon {
    width: 48px;
    height: 48px;
  }
  .app-card .card-name {
    font-size: 13px;
  }
}