/**
 * Mobile styles - only apply at viewport <= 768px.
 * PC display/format is unaffected.
 */

/* Hide mobile-only elements on desktop */
@media (min-width: 769px) {
  .mobile-hamburger,
  .mobile-settings-btn,
  .mobile-sidebar-overlay {
    display: none !important;
  }
}

@media (max-width: 768px) {
  .app {
    flex-wrap: wrap;
  }

  /* Left sidebar: off-canvas, slides in when open */
  .sidebar-left {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: 280px;
    max-width: 85vw;
    min-width: 0;
    z-index: 1001;
    transform: translateX(-100%);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    box-shadow: none;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

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

  body.mobile-sidebar-open .sidebar-left {
    transform: translateX(0);
    box-shadow: 4px 0 20px rgba(0, 0, 0, 0.4);
  }

  /* Overlay behind sidebar when open */
  .mobile-sidebar-overlay {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.25s ease, visibility 0.25s ease;
  }

  body.mobile-sidebar-open .mobile-sidebar-overlay {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  /* Hamburger button - visible on mobile only */
  .mobile-hamburger {
    display: inline-flex !important;
    width: 2.75rem;
    height: 2.75rem;
    flex-shrink: 0;
  }

  /* Mobile settings button in top bar */
  .mobile-settings-btn {
    display: inline-flex !important;
    width: 2.75rem;
    height: 2.75rem;
    flex-shrink: 0;
  }

  /* Right sidebar: hidden on mobile */
  .sidebar-right {
    display: none !important;
  }

  /* Main content: full width, no horizontal scroll */
  .content {
    flex: 1 1 100%;
    min-width: 0;
    padding: 0.75rem 1rem;
    overflow-x: hidden;
  }

  .content-card {
    padding: 1rem;
    min-width: 0;
    overflow-x: hidden;
  }

  /* Breadcrumb bar: ensure hamburger + content fit */
  .breadcrumb-bar {
    gap: 0.5rem;
  }

  .top-bar-actions .top-bar-btn {
    padding: 0.35rem 0.5rem;
    font-size: 0.8rem;
  }

  /* Very narrow: icon-only top bar links to save space */
  @media (max-width: 480px) {
    .top-bar-actions .top-bar-btn-text {
      display: none;
    }
    .top-bar-actions .top-bar-btn {
      padding: 0.35rem;
    }
  }

  /* Modals: compact with margins, adapt to visual viewport (keyboard).
     z-index above .sidebar-left (1001) so dialogs are never hidden behind the hamburger drawer. */
  .modal {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 0.5rem;
    overflow-y: auto;
    z-index: 1100;
  }

  #clearDataModal,
  #clearGameDataModal,
  #colorWheelModal,
  #savePresetModal,
  #deletePresetModal {
    z-index: 1100;
  }

  .modal-dialog {
    margin: auto;
    max-height: calc(var(--visual-viewport-height, 100vh) - 1rem);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
  }

  .modal-dialog .modal-body,
  .modal-dialog .modal-header + * {
    overflow-y: auto;
    min-height: 0;
  }

  .modal-body {
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  /* Settings modal: stack sidebar on mobile */
  .modal-dialog-settings {
    max-height: calc(var(--visual-viewport-height, 100vh) - 1rem);
  }

  .settings-body {
    min-height: 0;
    overflow: hidden;
    flex-direction: column;
  }

  .settings-content {
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    min-height: 0;
  }

  /* When keyboard is open: tighter modal, ensure scroll areas work */
  body.mobile-keyboard-open .modal-dialog {
    max-height: calc(var(--visual-viewport-height, 100vh) - 0.5rem);
  }

  body.mobile-keyboard-open .modal {
    align-items: flex-start;
    padding-top: 0.25rem;
  }

  .settings-sidebar {
    width: 100%;
    min-width: 0;
    flex-direction: row;
    flex-wrap: wrap;
    padding: 0.5rem;
    border-right: none;
    border-bottom: 1px solid var(--border);
    gap: 0.25rem;
  }

  .settings-nav-item {
    padding: 0.5rem 0.75rem;
    border-left: none;
    border-bottom: 3px solid transparent;
  }

  .settings-nav-item.active,
  .settings-nav-item[aria-current="page"] {
    border-left-color: transparent;
    border-bottom-color: var(--accent);
  }

  /* Task menu grid: stack day cells on mobile */
  .task-menu-grid {
    grid-template-columns: 1fr 1fr;
  }

  .task-menu-cell.span-2,
  .task-menu-cell.span-5,
  .task-menu-cell.span-7 {
    grid-column: span 2;
  }

  .task-menu-cell.day-cell {
    padding: 0.5rem 0.35rem;
    font-size: 0.8rem;
  }

  /* Home DWE bars: stack vertically on narrow mobile */
  .home-dwe-bars {
    flex-direction: column;
  }

  /* Attendance calendars: mobile-friendly layout */
  .history-calendar-scroll-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin-left: -1rem;
    margin-right: -1rem;
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .history-calendar-grid {
    min-width: max-content;
    grid-template-columns: repeat(7, minmax(120px, 1fr));
  }

  .history-calendar-day {
    min-height: 4.5rem;
    padding: 0.4rem;
  }

  .history-calendar-day-top {
    margin-bottom: 0.25rem;
  }

  .history-calendar-day-num {
    font-size: 0.9rem;
  }

  .history-calendar-day-today .history-calendar-day-num {
    min-width: 1.5rem;
    height: 1.5rem;
  }

  .history-calendar-day-edit {
    padding: 0.15rem 0.3rem;
    font-size: 0.65rem;
  }

  .history-dwe-bar {
    height: 1rem;
  }

  .history-dwe-fraction {
    font-size: 0.6rem;
  }

  .history-dwe-label {
    font-size: 0.7rem;
  }

  /* Attendance weekly calendar: two days per row on mobile */
  .attendance-calendar-grid {
    grid-template-columns: 1fr 1fr;
  }

  .attendance-calendar-day {
    padding: 0.6rem;
  }

  /* Data section: horizontal scroll for tables */
  #dataContainer .data-table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    max-width: none;
  }

  #dataContainer .data-summary-table {
    min-width: 380px;
  }

  /* Games section: no horizontal scroll on mobile */
  #gamesContainer {
    overflow-x: hidden;
    min-width: 0;
  }

  .games-title-row {
    flex-wrap: wrap;
    gap: 0.5rem;
  }

  .games-title-row .games-selected-title {
    width: 100%;
    margin-bottom: 0;
  }

  .games-sub-tabs {
    gap: 0.25rem;
  }

  .games-sub-tab {
    padding: 0.35rem 0.6rem;
    font-size: 0.8rem;
  }

  .games-changer-row {
    flex-direction: column;
    align-items: stretch;
    gap: 0.35rem;
  }

  .games-changer-row label {
    min-width: 0;
  }

  .games-changer-row input[type="number"] {
    max-width: none;
  }

  .task-item-with-changer .task-item-top {
    flex-wrap: wrap;
  }

  .task-item-with-changer .task-item-info {
    flex-wrap: wrap;
    min-width: 0;
  }

  .task-item-with-changer .task-label {
    flex: 1 1 100%;
    min-width: 0;
    word-break: break-word;
  }

  .task-item-with-changer .games-task-potential,
  .task-item-with-changer .games-task-reset,
  .games-endgame-date-start,
  .games-weekly-date-start {
    flex-shrink: 0;
    font-size: 0.75rem;
  }

  .endgame-currency-row {
    flex-direction: column;
    align-items: stretch;
    gap: 0.5rem;
    padding: 0.5rem 0;
  }

  .endgame-currency-row label {
    width: 100%;
  }

  .endgame-currency-row input[type="text"] {
    width: 100%;
    min-width: 0;
  }

  .endgame-currency-row input[type="number"] {
    width: 100%;
    max-width: 8rem;
  }

  .endgame-currency-row-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .pulls-calc-wrap {
    flex-wrap: wrap;
  }

  .pulls-calc-wrap input.pulls-calc-input {
    width: 100%;
    max-width: 8rem;
  }

  /* Touch-friendly minimum sizes */
  .tab,
  .sidebar-data-item,
  .sidebar-game-item {
    min-height: 44px;
    padding: 0.75rem 1rem;
  }

  .btn,
  .icon-btn {
    min-height: 44px;
  }
}