/**
 * Mobile UX – nur Smartphone / schmale Viewports
 * Wird NACH theme.css geladen. Desktop (≥992px) bleibt unverändert.
 *
 * Ziele:
 * - Content nicht durch Header/Footer überdecken
 * - Navigation als Overlay statt 85vh Header-Expansion
 * - Touch-Targets ≥44px
 * - Page-Header verdichten, Overflow verhindern
 */

/* =========================================================
   ≤991px – Tablet / Phone Landscape + Portrait
   ========================================================= */
@media (max-width: 991.98px) {
  /* Prevent horizontal page scroll from wide tables/grids */
  html,
  body.page-shell {
    overflow-x: hidden;
    max-width: 100vw;
  }

  /* Safe areas (Notch / Home-Indicator) */
  body.page-shell {
    padding-left: env(safe-area-inset-left, 0px);
    padding-right: env(safe-area-inset-right, 0px);
  }

  /* Shell: genug Abstand unter dem fixed Footer (zweizeilig auf Phone) */
  .app-shell {
    padding-bottom: calc(var(--mobile-footer-height, 5.5rem) + env(safe-area-inset-bottom, 0px)) !important;
  }

  .page-container {
    padding: 0.75rem 12px !important;
    max-width: 100%;
    box-sizing: border-box;
  }

  /* Weniger doppelter Top-Abstand (base.html mt-4 × 2) */
  .page-container > #alerts-container.mt-4 {
    margin-top: 0.5rem !important;
  }

  .page-container > .container-fluid.mt-4 {
    margin-top: 0.5rem !important;
  }

  /* ---- Header: kompakt, sticky, hoher z-index für Overlay ---- */
  .app-header {
    z-index: 1040;
    padding-top: env(safe-area-inset-top, 0px);
  }

  .app-header-inner {
    padding: 0.35rem 8px !important;
    gap: 0.35rem !important;
  }

  .app-logo-img {
    height: 32px !important;
    max-width: 140px !important;
  }

  .nav-toggler {
    width: 44px !important;
    height: 44px !important;
    min-width: 44px;
    min-height: 44px;
    touch-action: manipulation;
  }

  /* Header-Rechts: Hilfe / Glocke / User – kompakt, touch-fähig */
  .app-nav-right {
    gap: 0.2rem !important;
    flex-wrap: nowrap !important;
  }

  .app-nav-right .erp-help-btn {
    min-width: 44px;
    min-height: 44px;
    padding: 0.35rem 0.5rem !important;
  }

  .app-nav-right .nav-bell-wrap .nav-link,
  .app-nav-right .nav-user-trigger {
    min-width: 44px;
    min-height: 44px;
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    padding: 0.35rem 0.45rem !important;
  }

  .nav-action-label {
    display: none !important;
  }

  /* ---- Mobile Nav: fixed Overlay unter dem Header ---- */
  .app-nav {
    position: fixed !important;
    top: calc(var(--mobile-header-height, 56px) + env(safe-area-inset-top, 0px));
    left: 0;
    right: 0;
    width: 100% !important;
    max-height: 0 !important;
    margin: 0 !important;
    padding: 0 !important;
    overflow: hidden !important;
    border-radius: 0 !important;
    box-shadow: none !important;
    background: rgba(255, 255, 255, 0.98) !important;
    z-index: 1035;
    transition: max-height 0.28s ease, box-shadow 0.28s ease;
    grid-column: unset !important;
    grid-row: unset !important;
    pointer-events: none;
  }

  .app-nav.nav-open {
    max-height: calc(100dvh - var(--mobile-header-height, 56px) - env(safe-area-inset-top, 0px) - env(safe-area-inset-bottom, 0px)) !important;
    overflow-y: auto !important;
    overflow-x: hidden !important;
    padding: 0.35rem 0 1rem !important;
    box-shadow: 0 12px 28px rgba(15, 23, 42, 0.18) !important;
    -webkit-overflow-scrolling: touch;
    border-bottom: 1px solid rgba(226, 232, 240, 0.95);
    pointer-events: auto;
  }

  /* Backdrop wenn Menü offen */
  .mobile-nav-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    top: calc(var(--mobile-header-height, 56px) + env(safe-area-inset-top, 0px));
    background: rgba(15, 23, 42, 0.4);
    z-index: 1030;
    border: 0;
    padding: 0;
    margin: 0;
    cursor: pointer;
  }

  body.mobile-nav-open .mobile-nav-backdrop {
    display: block;
  }

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

  .app-nav .nav-main {
    background: transparent !important;
    box-shadow: none !important;
    padding: 0.25rem 0.5rem !important;
    gap: 0 !important;
  }

  .app-nav .nav-main > li > a {
    padding: 0.85rem 1rem !important;
    min-height: 48px;
    display: flex !important;
    align-items: center;
    white-space: normal !important;
    touch-action: manipulation;
  }

  .app-nav .nav-submenu a {
    padding: 0.75rem 1rem !important;
    min-height: 44px;
    display: flex !important;
    align-items: center;
    white-space: normal !important;
  }

  /* Hover öffnet Submenüs auf Touch NICHT (nur Accordion-Klasse) */
  .app-nav .nav-main > li:hover > .nav-submenu,
  .app-nav .nav-main > li:focus-within > .nav-submenu {
    max-height: 0 !important;
  }

  .app-nav .nav-main > li.nav-submenu-open > .nav-submenu {
    max-height: 60vh !important;
    overflow-y: auto !important;
  }

  /* User-Dropdown: nur per Klick (.nav-user-open), nicht Hover */
  .nav-user-wrap:hover .nav-submenu {
    opacity: 0 !important;
    visibility: hidden !important;
    transform: translateY(-8px) !important;
  }

  .nav-user-wrap.nav-user-open .nav-submenu {
    opacity: 1 !important;
    visibility: visible !important;
    transform: translateY(0) !important;
    position: fixed !important;
    top: calc(var(--mobile-header-height, 56px) + env(safe-area-inset-top, 0px) + 4px) !important;
    right: 8px !important;
    left: auto !important;
    z-index: 1055;
    min-width: 200px;
    max-width: calc(100vw - 16px);
    margin-top: 0 !important;
    box-shadow: 0 10px 28px rgba(15, 23, 42, 0.18);
  }

  .nav-user-wrap.nav-user-open .nav-submenu a {
    min-height: 44px;
    display: flex;
    align-items: center;
    padding: 0.75rem 1rem;
  }

  /* Bell-Dropdown: volle Breite nutzbar */
  .nav-bell-wrap .dropdown-menu {
    min-width: min(18rem, calc(100vw - 1.5rem)) !important;
    max-width: calc(100vw - 1rem);
  }

  /* ---- Footer: eine kompakte Zeile, safe-area ---- */
  .app-footer {
    padding: 0.25rem 8px calc(0.25rem + env(safe-area-inset-bottom, 0px)) !important;
    z-index: 1020;
  }

  .app-footer-inner {
    gap: 0.5rem !important;
    font-size: 0.65rem !important;
    flex-wrap: nowrap !important;
    align-items: center;
  }

  .app-footer-center {
    flex: 1 1 auto;
    order: 0;
    text-align: left;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    min-width: 0;
  }

  .app-footer-left {
    display: none;
  }

  .app-footer-right {
    flex: 0 0 auto;
    order: 0;
    justify-content: flex-end !important;
  }

  .btn-footer {
    min-height: 36px !important;
    min-width: 36px !important;
    padding: 0.3rem 0.55rem !important;
    font-size: 0.7rem !important;
  }

  /* ---- Page Header verdichten ---- */
  .page-top {
    margin: 0 -12px 0.75rem !important;
    padding: 0.65rem 12px !important;
  }

  .page-title-row .page-title,
  .page-header-standard .page-title-row h1 {
    font-size: 1.25rem !important;
    line-height: 1.25 !important;
    gap: 0.35rem !important;
  }

  .page-top .page-desc,
  .page-header-standard .page-desc {
    font-size: 0.8rem !important;
    margin-bottom: 0.5rem !important;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .page-top .page-actions-row,
  .page-header-standard .page-actions-row {
    justify-content: stretch !important;
    gap: 0.4rem !important;
  }

  .page-top .page-actions-row > .btn,
  .page-top .page-actions-row > a.btn,
  .page-header-standard .page-actions-row > .btn,
  .page-header-standard .page-actions-row > a.btn {
    flex: 1 1 auto;
    min-height: 44px;
  }

  .page-header-standard {
    padding: 0.75rem !important;
    margin-bottom: 0.75rem !important;
  }

  /* ---- Cards / Forms / Buttons ---- */
  .card,
  .card-static,
  .section-card,
  .modern-card {
    padding: 0.75rem !important;
  }

  .card-header {
    margin-bottom: 0.5rem !important;
    font-size: 1rem !important;
  }

  /* Touch-Targets: normale Buttons (nicht Footer/Icon-sm ohne !important-Konflikt) */
  body.page-shell .btn:not(.btn-footer):not(.btn-sm):not(.btn-close),
  body.page-shell .btn-primary:not(.btn-sm),
  body.page-shell .btn-secondary:not(.btn-sm),
  body.page-shell .btn-danger:not(.btn-sm) {
    min-height: 44px;
  }

  body.page-shell .btn-sm {
    min-height: 40px !important;
    min-width: 40px;
    padding: 0.4rem 0.75rem !important;
  }

  /* Form controls: 16px verhindert iOS-Zoom */
  body.page-shell .form-control,
  body.page-shell .form-select,
  body.page-shell input[type="text"],
  body.page-shell input[type="password"],
  body.page-shell input[type="email"],
  body.page-shell input[type="number"],
  body.page-shell input[type="search"],
  body.page-shell input[type="date"],
  body.page-shell input[type="tel"],
  body.page-shell select,
  body.page-shell textarea {
    font-size: 16px !important;
    min-height: 44px;
  }

  body.page-shell textarea.form-control {
    min-height: 88px;
  }

  /* ---- Tabellen: horizontal scrollen, nicht die Seite sprengen ---- */
  .table-responsive,
  .table-wrapper,
  .crm-tasks-table-wrap,
  .dataTables_wrapper {
    max-width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  /* Auto-wrap für Tabellen ohne .table-responsive Eltern */
  .page-content-area > .card > .table:not(.table-responsive *),
  .page-content-area > .card-static > .table,
  .card-body > .table:not(.dataTable) {
    display: block;
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  /* Modals: auf Phone fullscreen-ähnlich */
  .modal-dialog:not(.modal-fullscreen):not(.modal-fullscreen-sm-down):not(.modal-fullscreen-md-down):not(.modal-fullscreen-lg-down) {
    margin: 0.5rem;
    max-width: calc(100% - 1rem);
  }

  .modal-dialog-scrollable .modal-body {
    max-height: calc(100dvh - 10rem);
  }

  /* Filter-Zeilen / Button-Gruppen stapeln */
  .btn-toolbar,
  .stack-h,
  .d-flex.gap-2.flex-wrap,
  .filter-row,
  .action-buttons {
    gap: 0.4rem !important;
  }

  .action-buttons {
    flex-direction: column;
  }

  .action-buttons .btn {
    width: 100%;
    min-height: 44px;
  }

  /* DataTables controls stapeln */
  .dataTables_wrapper .row {
    --bs-gutter-x: 0.5rem;
  }

  .dataTables_wrapper .dataTables_length,
  .dataTables_wrapper .dataTables_filter,
  .dataTables_wrapper .dataTables_info,
  .dataTables_wrapper .dataTables_paginate {
    float: none !important;
    text-align: left !important;
    margin-bottom: 0.5rem;
    width: 100%;
  }

  .dataTables_wrapper .dataTables_filter input {
    width: 100% !important;
    margin-left: 0 !important;
    margin-top: 0.35rem;
  }

  .dataTables_wrapper .dt-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    margin-bottom: 0.5rem;
  }

  .dataTables_wrapper .dt-buttons .btn {
    flex: 1 1 auto;
    min-height: 40px;
  }
}

/* =========================================================
   ≤767px – Phone Portrait
   ========================================================= */
@media (max-width: 767.98px) {
  .app-shell {
    padding-bottom: calc(var(--mobile-footer-height, 4.5rem) + env(safe-area-inset-bottom, 0px)) !important;
  }

  .page-container {
    padding: 0.5rem 10px !important;
  }

  .page-top {
    margin: 0 -10px 0.5rem !important;
    padding: 0.5rem 10px !important;
  }

  /* Icon-Buttons in Tabellen: größere Touch-Fläche */
  .icon-btn,
  .btn-row-action {
    width: 40px !important;
    height: 40px !important;
    min-width: 40px !important;
    min-height: 40px !important;
    max-width: none !important;
  }

  .icon-btn-row {
    flex-wrap: wrap !important;
    gap: 6px !important;
    white-space: normal !important;
  }

  /* Layout-Grids: eine Spalte */
  .layout-grid--2,
  .layout-grid--3 {
    grid-template-columns: 1fr !important;
  }

  /* Stat-Cards / Dashboards: dichter */
  .stat-card {
    padding: 0.75rem !important;
  }

  /* Alert kompakter */
  .alert {
    padding: 0.65rem 0.85rem !important;
    font-size: 0.875rem;
  }

  /* Footer-Buttons nur Icons wenn Label versteckt */
  .app-footer-center {
    font-size: 0.6rem !important;
  }

  /* Bootstrap rows: weniger Gutter */
  .row {
    --bs-gutter-x: 0.75rem;
  }

  /* Handbuch-Modal Suche volle Breite */
  #handbookModal .modal-header {
    flex-wrap: wrap;
    gap: 0.5rem;
  }

  #handbookModal #handbookSearchInput {
    max-width: 100% !important;
    width: 100%;
  }
}

/* =========================================================
   ≤575px – kleine Phones
   ========================================================= */
@media (max-width: 575.98px) {
  .app-logo-img {
    height: 28px !important;
    max-width: 110px !important;
  }

  .page-title-row {
    flex-direction: column;
    align-items: flex-start !important;
  }

  .page-badges-block {
    width: 100%;
  }

  /* Button-Gruppen volle Breite */
  .page-actions-row .btn-group,
  .page-actions-row .btn-group-left,
  .page-actions-row .btn-group-right {
    width: 100%;
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
  }

  .page-actions-row .btn-group > .btn,
  .page-actions-row .btn-group-left > .btn,
  .page-actions-row .btn-group-right > .btn {
    flex: 1 1 auto;
  }
}