@media (max-width: 1100px) {
  .app-shell {
    grid-template-columns: 80px minmax(0, 1fr);
  }

  .sidebar {
    padding: 2rem 1rem;
    align-items: center;
  }

  .sidebar__branding {
    justify-content: center;
  }

  .sidebar__title {
    display: none;
  }

  .sidebar__logo {
    width: 48px;
    height: 48px;
  }

  .nav-chip {
    justify-content: center;
    padding: 0.85rem;
  }

  .nav-chip__text {
    display: none;
  }

  .nav-chip i {
    font-size: 1.2rem;
  }

  .sidebar__hint,
  .sidebar__subtitle,
  .sidebar__footer .primary-btn {
    display: none;
  }

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

  .browse-filters {
    position: static;
    order: -1;
  }

  .browse-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.8rem;
  }
}

@media (max-width: 860px) {
  .topbar {
    flex-direction: column;
    align-items: stretch;
  }

  .hero {
    padding: 2rem;
  }
}

@media (max-width: 720px) {
  .mobile-header {
    display: flex;
  }

  .app-shell {
    grid-template-columns: 1fr;
    padding-top: 60px;
  }

  .sidebar {
    position: fixed;
    top: 0;
    left: -280px;
    width: 280px;
    height: 100vh;
    z-index: 999;
    transition: left 0.3s ease;
    overflow-y: auto;
  }

  .sidebar.is-open {
    left: 0;
  }

  .sidebar__branding {
    visibility: hidden;
  }

  .nav-chip {
    justify-content: flex-start;
    padding: 0.85rem 1rem;
  }

  .nav-chip__text {
    display: inline;
  }

  .nav-chip i {
    font-size: 1rem;
  }

  .topbar__user {
    display: none;
  }

  .topbar .user-dropdown {
    display: none;
  }

  .main {
    padding: 1.8rem;
  }

  .topbar {
    margin-top: 0;
  }

  .detail-hero {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .detail-hero__cover {
    margin: 0 auto;
  }

  .browse-sort select {
    min-width: 0;
    width: 100%;
  }

  .browse-platforms {
    gap: 0.4rem;
  }

  .platform-section__header {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

  .platform-section__title {
    width: 100%;
  }

  .platform-avatar {
    width: 50px;
    height: 50px;
  }
}