/* Mobile / PWA shell — bottom tabs, drawer menu, touch-friendly layout */

:root {
  --fa-mobile-header-h: 52px;
  --fa-mobile-tab-h: 56px;
  --fa-mobile-safe-top: env(safe-area-inset-top, 0px);
  --fa-mobile-safe-bottom: env(safe-area-inset-bottom, 0px);
  --fa-mobile-safe-left: env(safe-area-inset-left, 0px);
  --fa-mobile-safe-right: env(safe-area-inset-right, 0px);
}

.mobile-shell-header,
.mobile-tab-bar,
.sidebar-backdrop {
  display: none;
}

@media (max-width: 768px) {
  html {
    -webkit-text-size-adjust: 100%;
  }

  body.mobile-drawer-open {
    overflow: hidden;
  }

  .auth-screen {
    padding: max(16px, var(--fa-mobile-safe-top)) max(16px, var(--fa-mobile-safe-right))
      max(16px, var(--fa-mobile-safe-bottom)) max(16px, var(--fa-mobile-safe-left));
    align-items: flex-start;
    min-height: 100%;
    min-height: 100dvh;
  }

  .auth-card-wrap {
    flex-direction: column;
    max-width: 100%;
    border-radius: var(--fa-radius-lg);
  }

  .auth-panel {
    flex: 1 1 auto;
    max-width: none;
    width: 100%;
    margin: 0;
    border-radius: var(--fa-radius-lg);
    border-left: 1px solid var(--fa-surface-border);
    padding: 20px 18px 24px;
  }

  .auth-card-wrap .auth-panel {
    border-radius: var(--fa-radius-lg);
    border-left: 1px solid var(--fa-surface-border);
  }

  .app-titlebar {
    display: none;
  }

  .mobile-shell-header {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
    min-height: var(--fa-mobile-header-h);
    padding: max(8px, var(--fa-mobile-safe-top)) max(12px, var(--fa-mobile-safe-right)) 8px
      max(12px, var(--fa-mobile-safe-left));
    background: linear-gradient(180deg, rgba(134, 177, 246, 0.08) 0%, transparent 100%), var(--fa-panel-accent);
    border-bottom: 1px solid var(--fa-surface-border);
  }

  .mobile-shell-menu-btn,
  .mobile-shell-avatar-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    padding: 0;
    border: 1px solid var(--fa-surface-inset-border);
    border-radius: 10px;
    background: var(--fa-surface-inset-bg);
    color: var(--fa-text);
    cursor: pointer;
    flex-shrink: 0;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
  }

  .mobile-shell-avatar-btn {
    overflow: hidden;
    padding: 0;
  }

  .mobile-shell-avatar-btn img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  .mobile-shell-title-wrap {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 1px;
  }

  .mobile-shell-title {
    font-size: 15px;
    font-weight: 700;
    line-height: 1.2;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .mobile-shell-subtitle {
    font-size: 10px;
    font-weight: 600;
    color: var(--fa-muted-2);
    letter-spacing: 0.02em;
  }

  .maintenance-banner {
    flex-shrink: 0;
    font-size: 11px;
    padding: 8px 12px;
  }

  .app-body {
    flex: 1;
    min-height: 0;
    position: relative;
  }

  .sidebar-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 1100;
    background: rgba(0, 0, 0, 0.52);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.22s ease;
  }

  .app-shell.sidebar-open .sidebar-backdrop {
    opacity: 1;
    pointer-events: auto;
  }

  .app-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 1200;
    width: min(86vw, 292px);
    max-width: 292px;
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 0;
    padding-top: max(12px, var(--fa-mobile-safe-top));
    padding-bottom: max(12px, var(--fa-mobile-safe-bottom));
    padding-left: max(8px, var(--fa-mobile-safe-left));
    padding-right: 8px;
    transform: translateX(-105%);
    transition: transform 0.24s ease;
    box-shadow: 8px 0 32px rgba(0, 0, 0, 0.35);
    overflow-y: auto;
    overscroll-behavior: contain;
    scrollbar-width: none;
    -ms-overflow-style: none;
  }

  .app-sidebar::-webkit-scrollbar {
    display: none;
  }

  .app-shell.sidebar-open .app-sidebar {
    transform: translateX(0);
  }

  .app-shell.sidebar-collapsed .app-sidebar {
    width: min(86vw, 292px);
    max-width: 292px;
    padding-left: max(8px, var(--fa-mobile-safe-left));
    padding-right: 8px;
  }

  .sidebar-toolbar,
  .sidebar-collapse-btn {
    display: none !important;
  }

  .sidebar-nav {
    flex-direction: column;
    flex-wrap: nowrap;
  }

  .nav-label {
    display: inline;
  }

  .nav-btn {
    min-height: 44px;
    padding: 10px 12px;
    font-size: 13px;
  }

  .sidebar-profile {
    padding-bottom: 8px;
    margin-bottom: 4px;
    border-bottom: 1px solid var(--fa-border);
  }

  .app-main {
    flex: 1;
    min-height: 0;
    padding: 12px max(12px, var(--fa-mobile-safe-right)) calc(12px + var(--fa-mobile-tab-h) + var(--fa-mobile-safe-bottom))
      max(12px, var(--fa-mobile-safe-left));
  }

  .app-main:has(.dashboard-page),
  .app-main:has(.archive-page),
  .app-main:has(.payments-page--admin),
  .app-main:has(.bin-checker-page),
  .app-main:has(.admin-users-page),
  .app-main:has(.admin-dashboard-page),
  .app-main:has(.admin-analytics-page),
  .app-main:has(.messages-page-shell),
  .app-main:has(.notes-page-shell) {
    padding-bottom: calc(8px + var(--fa-mobile-tab-h) + var(--fa-mobile-safe-bottom));
  }

  .mobile-tab-bar {
    display: flex;
    align-items: stretch;
    justify-content: space-around;
    gap: 2px;
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1050;
    min-height: calc(var(--fa-mobile-tab-h) + var(--fa-mobile-safe-bottom));
    padding: 6px max(8px, var(--fa-mobile-safe-right)) max(6px, var(--fa-mobile-safe-bottom))
      max(8px, var(--fa-mobile-safe-left));
    background: linear-gradient(180deg, rgba(35, 45, 55, 0.94) 0%, rgba(31, 41, 51, 0.98) 100%);
    border-top: 1px solid var(--fa-surface-border);
    box-shadow: 0 -8px 24px rgba(0, 0, 0, 0.28);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
  }

  .mobile-tab-btn {
    flex: 1 1 0;
    min-width: 0;
    max-width: 88px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    padding: 4px 2px;
    border: none;
    border-radius: 10px;
    background: transparent;
    color: var(--fa-muted);
    font-size: 10px;
    font-weight: 700;
    line-height: 1.1;
    cursor: pointer;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
  }

  .mobile-tab-btn .fa-icon {
    width: 22px;
    height: 22px;
    opacity: 0.88;
  }

  .mobile-tab-btn--active {
    color: var(--fa-primary);
    background: rgba(134, 177, 246, 0.1);
  }

  .mobile-tab-btn--active .fa-icon {
    opacity: 1;
  }

  .mobile-tab-label {
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .page-header {
    margin-bottom: 12px;
    gap: 8px;
  }

  .page-title {
    font-size: 16px;
  }

  .fa-panel {
    padding: 12px;
  }

  .fa-btn,
  .fa-btn-sm,
  .nav-btn,
  .admin-settings-nav-btn {
    min-height: 40px;
  }

  .fa-table-wrap,
  .dashboard-orders-scroll,
  .archive-orders-scroll,
  .settings-tab-panels,
  .admin-settings-panels {
    -webkit-overflow-scrolling: touch;
  }

  .modal-overlay {
    padding: 0;
    align-items: stretch;
  }

  .modal,
  .modal.modal-wide,
  .modal.modal-order,
  .modal.modal-order-details,
  .modal.modal-changelog,
  .modal.modal-guide {
    width: 100%;
    max-width: none;
    max-height: none;
    height: 100%;
    border-radius: 0;
    margin: 0;
    padding: max(14px, var(--fa-mobile-safe-top)) max(14px, var(--fa-mobile-safe-right))
      max(14px, var(--fa-mobile-safe-bottom)) max(14px, var(--fa-mobile-safe-left));
  }

  .modal.modal-order,
  .modal.modal-order-details {
    overflow: hidden;
  }

  .order-modal-shell .order-tile-grid > .order-modal-money-tile {
    grid-column: 1 / -1;
  }

  .order-modal-photo.order-image-row {
    flex-direction: column;
    align-items: stretch;
  }

  .fa-guide-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .fa-guide-nav {
    margin-left: 0;
    width: 100%;
  }

  .fa-guide-nav .fa-btn {
    flex: 1;
  }

  .fa-guide-step-head {
    flex-direction: column;
  }

  .modal-actions {
    flex-wrap: wrap;
    gap: 8px;
  }

  .modal-actions .fa-btn,
  .modal-actions-order .fa-btn-sm {
    flex: 1 1 calc(50% - 4px);
    min-width: 120px;
  }

  .admin-users-page-header {
    margin-bottom: 10px;
  }

  .admin-users-page-lead,
  .admin-settings-panel-lead {
    font-size: 11px;
  }

  .admin-settings-nav {
    flex-wrap: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
    overscroll-behavior-x: contain;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    -ms-overflow-style: none;
    padding-bottom: 4px;
    margin-bottom: 10px;
  }

  .admin-settings-nav::-webkit-scrollbar {
    display: none;
  }

  .admin-settings-nav-btn {
    flex-shrink: 0;
    white-space: nowrap;
  }

  .admin-users-layout,
  .admin-users-layout--staffers {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .admin-users-layout--staffers .admin-users-detail-grid {
    width: 100%;
    max-width: none;
  }

  .admin-users-layout--staffers .admin-users-fields-grid,
  .admin-users-layout--staffers .admin-users-fields-grid--payout,
  .admin-users-fields-grid,
  .admin-users-fields-grid--payout {
    grid-template-columns: 1fr;
  }

  .admin-users-detail-top {
    grid-template-columns: 1fr 1fr;
  }

  .admin-users-avatar-mini {
    grid-column: 1 / -1;
  }

  .bin-settings-toggle-grid {
    grid-template-columns: 1fr;
  }

  .bin-settings-cache-row {
    grid-template-columns: 1fr;
  }

  .bin-settings-cache-row .fa-btn {
    width: 100%;
  }

  .admin-settings-form-grid,
  .admin-settings-form-grid--integrations {
    max-width: none;
  }

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

  .archive-filters-grid--user,
  .archive-filters-grid--admin {
    grid-template-columns: 1fr;
    max-width: none;
  }

  .archive-filter-search-row--user,
  .archive-filter-search-row--admin {
    max-width: none;
    flex-direction: column;
    align-items: stretch;
  }

  .messages-layout {
    grid-template-columns: 1fr;
    min-height: 0;
  }

  .messages-page-shell {
    min-height: 0;
  }

  .messages-page {
    min-height: 0;
  }

  .user-list {
    max-height: 200px;
    overflow-y: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
  }

  .user-list::-webkit-scrollbar {
    display: none;
  }

  .chat-panel {
    min-height: 260px;
  }

  .user-settings-layout {
    flex-direction: column;
  }

  .user-settings-layout .user-notify-panel,
  .admin-settings-telegram-wrap .admin-notify-panel {
    width: 100%;
    max-height: none;
  }

  .account-layout,
  .account-layout-compact,
  .account-layout-with-notify,
  .account-body-with-notify,
  .account-main-columns {
    grid-template-columns: 1fr;
  }

  .account-save-btn {
    width: auto;
    min-width: 100px;
  }

  .fa-context-menu {
    min-width: 200px;
    max-width: calc(100vw - 24px);
  }
}

@media (max-width: 480px) {
  .admin-users-detail-top {
    grid-template-columns: 1fr;
  }

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

  .mobile-tab-label {
    font-size: 9px;
  }
}

@media (display-mode: standalone) {
  .app-shell {
    min-height: 100dvh;
  }

  .mobile-shell-header {
    padding-top: max(10px, var(--fa-mobile-safe-top));
  }
}