:root {
  --mobile-nav-height: 68px;
}

html {
  -webkit-text-size-adjust: 100%;
}

.mobile-nav {
  display: none;
}

@media (max-width: 768px) {
  body {
    padding-bottom: calc(var(--mobile-nav-height) + env(safe-area-inset-bottom));
  }

  button,
  .btn,
  .nav-link,
  .filter-chip,
  .tab,
  .ptab,
  input,
  select,
  textarea {
    min-height: 44px;
  }

  input,
  select,
  textarea {
    font-size: 16px !important;
  }

  .mobile-nav {
    position: fixed;
    z-index: 850;
    right: 0;
    bottom: 0;
    left: 0;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    min-height: var(--mobile-nav-height);
    padding: 6px 8px calc(6px + env(safe-area-inset-bottom));
    border-top: 1px solid var(--border, rgba(255,255,255,.1));
    background: color-mix(in srgb, var(--bg, #0d0f14) 92%, transparent);
    box-shadow: 0 -12px 32px rgba(0,0,0,.28);
    backdrop-filter: blur(20px);
  }

  .mobile-nav-link {
    display: flex;
    min-width: 0;
    min-height: 52px;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 2px;
    border-radius: 12px;
    color: var(--text3, #747d91);
    font-size: 10px;
    font-weight: 600;
    line-height: 1.1;
    text-decoration: none;
    -webkit-tap-highlight-color: transparent;
  }

  .mobile-nav-icon {
    font-size: 20px;
    line-height: 1;
  }

  .mobile-nav-link.active {
    color: var(--accent, #7c6af7);
    background: var(--accent-soft, rgba(124,106,247,.14));
  }

  .toast-container,
  body > .toast {
    right: 12px !important;
    bottom: calc(var(--mobile-nav-height) + env(safe-area-inset-bottom) + 12px) !important;
    left: 12px;
  }

  .toast-container .toast,
  body > .toast {
    width: 100%;
  }

  .modal-overlay {
    align-items: flex-end !important;
    padding: 0 !important;
  }

  .modal-overlay .modal {
    max-width: none !important;
    max-height: min(92dvh, 820px) !important;
    border-right: 0;
    border-bottom: 0;
    border-left: 0;
    border-radius: 20px 20px 0 0 !important;
    padding-bottom: env(safe-area-inset-bottom);
  }

  .modal-header {
    padding: 16px 16px 12px !important;
  }

  .modal-body {
    padding: 16px !important;
  }

  .modal-footer {
    padding: 12px 16px 16px !important;
    flex-wrap: wrap;
  }

  .modal-footer > .btn {
    flex: 1 1 120px;
    justify-content: center;
  }

  .empty,
  .empty-state {
    padding: 42px 16px !important;
  }

  .bg-orb {
    opacity: .55;
  }

  /* Catalog */
  .page-catalog .header {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 8px 10px;
    height: auto;
    min-height: 64px;
    padding: 9px 12px;
  }

  .page-catalog .header .logo {
    min-width: 0;
  }

  .page-catalog .header .search-wrap {
    grid-column: 1 / -1;
    grid-row: 2;
    width: 100%;
    max-width: none;
  }

  .page-catalog .header-right {
    min-width: 0;
    justify-content: flex-end;
    gap: 5px;
  }

  .page-catalog .header-right > a[href="/collections"] {
    width: 44px;
    padding: 0 12px;
    justify-content: flex-start;
    overflow: hidden;
  }

  .page-catalog .edit-toggle {
    width: 44px;
    padding: 0;
    justify-content: center;
    font-size: 16px;
  }

  .page-catalog #editLabel {
    display: none;
  }

  .page-catalog .main {
    padding: 16px 12px 24px;
  }

  .page-catalog .filters-bar {
    margin: 0 -12px 22px;
    padding: 0 12px 4px;
    flex-wrap: nowrap;
    overflow-x: auto;
    scrollbar-width: none;
  }

  .page-catalog .filters-bar::-webkit-scrollbar {
    display: none;
  }

  .page-catalog .filter-chip {
    flex: 0 0 auto;
  }

  .page-catalog .group-header {
    gap: 8px;
    flex-wrap: wrap;
  }

  .page-catalog .group-actions {
    flex-basis: 100%;
    margin-left: 0;
  }

  .page-catalog .cards-grid {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  }

  .page-catalog .card:hover,
  .page-auth .friend-card:hover,
  .page-collections .coll-card:hover,
  .page-collections .item-card:hover {
    transform: none;
  }

  /* Account and profile */
  .page-auth .header {
    height: 58px;
    padding: 0 12px;
  }

  .page-auth .main {
    padding: 16px 12px 24px;
  }

  .page-auth .auth-wrap {
    margin: 16px auto;
  }

  .page-auth .auth-card {
    padding: 22px 18px;
  }

  .page-auth .auth-logo {
    margin-bottom: 16px;
  }

  .page-auth .profile-hero {
    padding: 22px 16px;
    gap: 16px;
  }

  .page-auth .profile-avatar {
    width: 84px;
    height: 84px;
  }

  .page-auth .profile-actions > .btn {
    flex: 1 1 140px;
    justify-content: center;
  }

  .page-auth .profile-tabs {
    width: calc(100% + 24px);
    margin-right: -12px;
    margin-left: -12px;
    padding: 4px 12px;
    overflow-x: auto;
    border-right: 0;
    border-left: 0;
    border-radius: 0;
    scrollbar-width: none;
  }

  .page-auth .ptab {
    flex: 0 0 auto;
  }

  .page-auth .pinned-grid {
    grid-template-columns: 1fr;
  }

  .page-auth .request-card,
  .page-auth .user-search-card,
  .page-auth .friend-card {
    align-items: flex-start;
    flex-wrap: wrap;
  }

  .page-auth .request-actions,
  .page-auth .friend-actions {
    width: 100%;
    padding-left: 62px;
  }

  .page-auth .request-actions .btn,
  .page-auth .friend-actions .btn {
    flex: 1;
    justify-content: center;
  }

  .page-auth .header-dropdown {
    position: fixed;
    top: 62px;
    right: 12px;
    left: 12px;
    min-width: 0;
  }

  /* Collections */
  .page-collections .header {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 8px 10px;
    height: auto;
    padding: 9px 12px;
  }

  .page-collections .header-center {
    grid-column: 1 / -1;
    grid-row: 2;
    width: 100%;
    max-width: none;
  }

  .page-collections .header-right {
    min-width: 0;
    justify-content: flex-end;
    gap: 5px;
  }

  .page-collections .header-right > a[href="/"] {
    width: 44px;
    padding: 0 12px;
    justify-content: flex-start;
    overflow: hidden;
  }

  .page-collections .main {
    padding: 16px 12px 24px;
  }

  .page-collections .summary-bar {
    gap: 8px;
    margin-bottom: 18px;
  }

  .page-collections .stat-card {
    padding: 14px 12px;
  }

  .page-collections .controls-bar {
    align-items: stretch;
  }

  .page-collections .controls-bar > label,
  .page-collections .controls-bar > .search-wrap,
  .page-collections .controls-bar > select {
    flex: 1 1 150px;
  }

  .page-collections .controls-bar .filter-select {
    width: 100%;
  }

  .page-collections .collections-grid,
  .page-collections .items-grid {
    grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
    gap: 12px;
  }

  .page-collections .coll-actions {
    flex-wrap: wrap;
  }

  .page-collections .coll-actions .btn {
    flex: 1 1 110px;
    justify-content: center;
  }

  .page-collections .coll-header-block {
    padding: 16px;
  }

  .page-collections .coll-header-stats {
    width: 100%;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-collections .tabs {
    width: 100%;
    overflow-x: auto;
  }

  .page-collections .tabs .tab {
    flex: 1 0 auto;
  }

  .page-collections .item-row .item-col {
    display: none;
  }

  .page-collections .item-row .item-col:nth-last-child(2) {
    display: block;
    grid-column: 2;
  }

  .page-collections .item-row .item-col:last-child {
    display: flex !important;
    grid-column: 3;
    grid-row: 1 / span 2;
    flex-direction: column;
  }

  .page-collections .table-wrap {
    margin-right: -12px;
    margin-left: -12px;
    border-right: 0;
    border-left: 0;
    border-radius: 0;
  }

  .page-collections .items-table {
    min-width: 880px;
  }

  .page-collections .modal-body > div[style*="grid-template-columns"] {
    grid-template-columns: 1fr !important;
  }

  /* Messages */
  .page-messages {
    padding-bottom: 0;
    overflow: hidden;
  }

  .page-messages .header {
    height: 56px;
    padding: 0 12px;
  }

  .page-messages .header .nav {
    display: none;
  }

  .page-messages .app {
    height: calc(100dvh - 56px - var(--mobile-nav-height) - env(safe-area-inset-bottom));
    padding: 0;
  }

  .page-messages .dialogs,
  .page-messages .chat {
    border-right: 0;
    border-left: 0;
    border-radius: 0;
  }

  .page-messages .dialog {
    min-height: 72px;
  }

  .page-messages .messages {
    padding: 14px 10px;
  }

  .page-messages .message {
    max-width: 90%;
    font-size: .88rem;
  }

  .page-messages .message-actions {
    opacity: 1;
  }

  .page-messages .composer {
    padding: 8px 10px;
  }

  .page-messages .composer textarea {
    min-height: 46px;
    padding: 11px 12px;
  }

  .page-messages .composer button[type="submit"] {
    width: 46px;
    padding: 0;
    justify-content: center;
    font-size: 0;
  }

  .page-messages .composer button[type="submit"]::before {
    content: "➤";
    font-size: 18px;
  }

  .page-messages #blockBtn {
    width: 42px;
    padding: 0;
    justify-content: center;
    font-size: 0;
  }

  .page-messages #blockBtn::before {
    content: "🚫";
    font-size: 14px;
  }

  /* Admin */
  .page-admin .header {
    height: 56px;
    padding: 0 12px;
  }

  .page-admin .header-nav {
    display: none;
  }

  .page-admin .layout {
    min-height: calc(100dvh - 56px - var(--mobile-nav-height));
  }

  .page-admin .sidebar {
    position: sticky;
    top: 56px;
    z-index: 18;
    padding: 8px 10px;
    background: var(--bg);
    scrollbar-width: none;
  }

  .page-admin .sidebar::-webkit-scrollbar {
    display: none;
  }

  .page-admin .tab {
    min-height: 40px;
  }

  .page-admin .main {
    padding: 16px 12px 24px;
  }

  .page-admin .cards {
    gap: 8px;
  }

  .page-admin .stat,
  .page-admin .panel {
    padding: 14px;
  }

  .page-admin .title-row {
    align-items: flex-start;
    flex-wrap: wrap;
  }

  .page-admin .title-row h1 {
    font-size: 1.25rem;
  }

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

  .page-admin .field.full {
    grid-column: auto;
  }

  .page-admin .toolbar > .input,
  .page-admin .toolbar > .switch {
    flex: 1 1 180px;
    width: 100%;
  }

  .page-admin .table-wrap {
    margin-right: -14px;
    margin-left: -14px;
    border-right: 0;
    border-left: 0;
    border-radius: 0;
  }

  .page-admin table {
    min-width: 680px;
  }

  .page-admin .actions {
    flex-wrap: wrap;
    white-space: normal;
  }
}

@media (max-width: 480px) {
  .page-catalog .logo-sub,
  .page-collections .logo-sub,
  .page-auth .header-username {
    display: none;
  }

  .page-catalog .cards-grid,
  .page-collections .collections-grid,
  .page-collections .items-grid,
  .page-auth .friends-grid {
    grid-template-columns: 1fr;
  }

  .page-auth .logo-text {
    font-size: 1.12rem;
  }

  .page-auth #headerGuest .btn {
    padding-right: 10px;
    padding-left: 10px;
  }

  .page-auth .edit-avatar-section {
    flex-direction: column;
  }

  .page-collections .header-right > .btn-gold {
    width: 44px;
    padding: 0 13px;
    justify-content: flex-start;
    overflow: hidden;
    font-size: 22px;
  }

  .page-collections .summary-bar,
  .page-admin .cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-collections .stat-value,
  .page-admin .stat b {
    font-size: 1.15rem;
  }
}

@media (hover: none) and (pointer: coarse) {
  .btn:hover,
  .card:hover,
  .coll-card:hover,
  .item-card:hover,
  .friend-card:hover {
    transform: none !important;
  }
}