/* ============================================================
   VisionCore · 16 Mobile — full system rewrite
   
   Replaces the legacy mobile.css behaviors. Tested patterns:
   - Bottom tab bar (Gallery / Studio / Engine / Persona)
   - Slide-out drawers for sidebar + tools
   - Full-bleed cards in gallery (2 columns)
   - Image detail as bottom sheet
   ============================================================ */

@media (max-width: 760px) {

  /* ============ APP SHELL ============ */
  html,
  body {
    width: 100vw !important;
    height: 100% !important;
    overflow: hidden !important;
    overscroll-behavior: none !important;
  }

  .app-container {
    flex-direction: column !important;
    height: 100vh !important;
    height: 100dvh !important;
    min-height: 100dvh !important;
    width: 100vw !important;
    overflow: hidden !important;
  }

  /* Sidebar becomes off-canvas drawer */
  .sidebar {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    bottom: 0 !important;
    width: 84vw !important;
    max-width: 320px !important;
    z-index: calc(var(--vc-z-overlay) + 10) !important; /* 오버레이(300)보다 높게 설정하여 클릭 먹통 방지 */
    transform: translateX(-100%) !important;
    transition: transform .25s var(--vc-ease) !important;
    border-right: 1px solid var(--vc-line) !important;
    background: var(--vc-panel) !important;
  }
  .sidebar.mobile-open,
  body.mobile-menu-open .sidebar {
    transform: translateX(0) !important;
  }

  /* Backdrop */
  .mobile-menu-overlay {
    position: fixed !important;
    inset: 0 !important;
    background: rgba(0,0,0,.6) !important;
    z-index: var(--vc-z-overlay) !important;
    display: none !important;
  }
  body.mobile-menu-open .mobile-menu-overlay {
    display: block !important;
  }

  /* Main content fills */
  .main-content {
    width: 100vw !important;
    flex: 1 !important;
    min-height: 0 !important;
    height: 100dvh !important;
    overflow: hidden !important;
    padding-bottom: 0 !important;
  }

  /* ============ TOP NAV ============ */
  .top-nav {
    position: relative !important;
    flex: 0 0 52px !important;
    height: 52px !important;
    min-height: 52px !important;
    padding: 8px 14px !important;
    display: grid !important;
    grid-template-columns: 38px 1fr !important; /* 햄버거 38px, 셀렉터가 나머지 1fr */
    align-items: center !important;
    gap: 12px !important;
    z-index: calc(var(--vc-z-sticky) + 2) !important;
  }
  .top-nav-primary { display: contents !important; }

  /* 햄버거 메뉴 토글을 1번째 컬럼으로 강제 정렬 */
  .mobile-menu-toggle {
    grid-column: 1 !important;
    grid-row: 1 !important;
    display: inline-flex !important;
    width: 38px !important;
    height: 38px !important;
    border-radius: var(--vc-r-sm) !important;
    border: 1px solid var(--vc-line) !important;
    background: transparent !important;
    align-items: center !important;
    justify-content: center !important;
    flex-direction: column !important;
    gap: 4px !important;
    cursor: pointer !important;
    padding: 0 !important;
  }
  .mobile-menu-toggle span {
    width: 16px !important;
    height: 2px !important;
    background: var(--vc-ink-2) !important;
    border-radius: var(--vc-r-pill) !important;
    display: block !important;
  }

  /* nav-left 전체를 2번째 컬럼(1fr)으로 강제 정렬하여 찌그러짐 원천 방지 */
  .nav-left,
  .nav-left-group {
    grid-column: 2 !important;
    grid-row: 1 !important;
    display: flex !important;
    align-items: center !important;
    width: 100% !important;
    min-width: 0 !important;
    gap: 0 !important;
  }

  /* 모바일 퀵 스위처 셀렉트가 중앙을 다 먹도록 하고, 겹침 방지를 위해 타이틀은 모바일에서 숨김 */
  .nav-heading-block {
    display: none !important; /* 타이틀 겹침 및 글자 뭉개짐 방지 */
  }

  .top-stats,
  .top-stats-shifted,
  .mode-switcher,
  .engine-control-cluster,
  #chatbot-persona-btn,
  #settings-btn,
  #open-studio-btn { display: none !important; }

  /* Workspace toolbar collapses */
  .workspace-toolbar {
    position: relative !important;
    flex: 0 0 auto !important;
    display: flex !important;
    flex-direction: column !important;
    align-items: stretch !important;
    justify-content: flex-start !important;
    padding: 8px 14px 10px !important;
    gap: 8px !important;
    z-index: calc(var(--vc-z-sticky) + 1) !important;
  }
  .workspace-toolbar-copy {
    display: none !important;
  }
  .workspace-toolbar-copy span { display: none !important; }
  .workspace-toolbar-copy strong { font-size: 10.5px !important; }
  .workspace-toolbar-actions {
    display: grid !important;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) !important;
    gap: 8px !important;
    width: 100% !important;
  }
  .workspace-toolbar-actions .vc-btn,
  .workspace-toolbar-actions .btn {
    padding: 6px 10px !important;
    font-size: 11.5px !important;
    min-height: 30px !important;
  }
  #inline-search-bar {
    width: 100% !important;
    max-width: none !important;
    margin: 0 !important;
    flex: 0 0 auto !important;
  }
  #inline-search-input {
    min-height: 42px !important;
    font-size: 14px !important;
  }
  #grid-columns-control {
    grid-column: 1 / -1 !important;
    grid-row: 2 !important;
    width: 100% !important;
    min-height: 40px !important;
    justify-content: center !important;
  }
  #mode-select-btn-mobile {
    display: inline-flex !important;
    grid-column: 1 !important;
    grid-row: 1 !important;
    width: 100% !important;
    min-height: 42px !important;
    align-items: center !important;
    justify-content: center !important;
    border-color: rgba(255, 42, 95, .42) !important;
    color: #ff4f7a !important;
    background: rgba(255, 42, 95, .08) !important;
  }
  #mode-select-btn-mobile.active {
    color: #fff !important;
    background: #ff2a5f !important;
    border-color: #ff2a5f !important;
  }
  #workspace-open-tools {
    grid-column: 2 !important;
    grid-row: 1 !important;
    width: 100% !important;
    min-height: 42px !important;
    justify-content: center !important;
  }

  /* Mobile portfolio select — show, used as quick switcher */
  .mobile-portfolio-select {
    display: block !important;
    width: 100% !important;
    background: var(--vc-bg) !important;
    border: 1px solid var(--vc-line) !important;
    border-radius: var(--vc-r-md) !important;
    color: var(--vc-ink-2) !important;
    font-size: 12.5px !important;
    padding: 7px 10px !important;
    padding-right: 28px !important;
    outline: none !important;
    box-shadow: none !important;
    appearance: none !important;
    -webkit-appearance: none !important;
    background-image: url("data:image/svg+xml;charset=US-ASCII,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22292.4%22%20height%3D%22292.4%22%3E%3Cpath%20fill%3D%22%23a4a4a4%22%20d%3D%22M287%2069.4a17.6%2017.6%200%200%200-13-5.4H18.4c-5%200-9.3%201.8-12.9%205.4A17.6%2017.6%200%200%200%200%2082.2c0%205%201.8%209.3%205.4%2012.9l128%20127.9c3.6%203.6%207.8%205.4%2012.8%205.4s9.2-1.8%2012.8-5.4L287%2095c3.5-3.5%205.4-7.8%205.4-12.8%200-5-1.9-9.2-5.5-12.8z%22%2F%3E%3C%2Fsvg%3E") !important;
    background-repeat: no-repeat !important;
    background-position: right 12px top 50% !important;
    background-size: 10px auto !important;
  }

  /* Mobile quick filters chip row */
  .mobile-quick-filters {
    position: relative !important;
    flex: 0 0 58px !important;
    display: flex !important;
    flex-wrap: nowrap !important;
    overflow-x: auto !important;
    overflow-y: hidden !important;
    align-items: center !important;
    gap: 6px !important;
    min-height: 58px !important;
    padding: 8px 14px 10px !important;
    margin: 0 !important;
    border-bottom: 1px solid #141414 !important;
    background: #0b0b0b !important;
    scrollbar-width: none !important;
    z-index: var(--vc-z-sticky) !important;
  }
  .mobile-quick-filters .chip,
  .mobile-quick-filters button {
    flex: 0 0 auto !important;
    min-height: 40px !important;
    height: 40px !important;
    padding: 0 18px !important;
    border-radius: 20px !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    line-height: 1 !important;
    font-size: 14px !important;
    font-weight: 700 !important;
    white-space: nowrap !important;
  }
  .mobile-quick-filters::-webkit-scrollbar { display: none !important; }

  /* ============ GRID ============ */
  .grid-container {
    flex: 1 1 auto !important;
    min-height: 0 !important;
    overflow-y: auto !important;
    -webkit-overflow-scrolling: touch !important;
    grid-template-columns: 1fr 1fr !important;
    gap: 8px !important;
    padding: 12px 12px calc(84px + env(safe-area-inset-bottom, 0px)) !important;
  }
  body.selection-mode-active .grid-container {
    padding-bottom: 248px !important;
  }
  .grid-item {
    padding-bottom: 150% !important;
    border-radius: var(--vc-r-md) !important;
  }
  .grid-item:hover {
    transform: none !important;
    box-shadow: none !important;
  }
  .grid-item .check {
    width: 22px !important;
    height: 22px !important;
    top: 6px !important;
    right: 6px !important;
  }

  /* ============ FLOATING ACTION BAR ============ */
  .floating-action-bar {
    left: 12px !important;
    right: 12px !important;
    bottom: 76px !important;
    transform: none !important;
    max-width: none !important;
    flex-wrap: wrap !important;
  }
  .floating-action-bar.visible {
    transform: none !important;
  }
  #selected-count-text {
    width: 100% !important;
    text-align: center !important;
    margin-bottom: 4px !important;
  }
  .action-select,
  .action-input {
    flex: 1 1 120px !important;
    min-width: 0 !important;
  }

  /* ============ SWIPER · full-screen on mobile ============ */
  .swiper-modal {
    height: 100vh !important;
    height: 100dvh !important;
    overflow: hidden !important;
    z-index: var(--vc-z-modal) !important;
  }
  .swiper-body {
    flex-direction: column !important;
    flex: 0 0 calc(100dvh - 118px) !important;
    height: calc(100dvh - 118px) !important;
    min-height: 0 !important;
    overflow: hidden !important;
    padding-bottom: 0 !important;
  }
  .swiper-sidebar {
    display: none !important;
  }
  .related-sidebar { display: none !important; }
  .swiper-layout {
    height: 100% !important;
    min-height: 0 !important;
    padding-top: 8px !important;
    padding-bottom: 0 !important;
  }
  .swiper-track {
    height: 100% !important;
    max-height: 100% !important;
    transition: transform 280ms cubic-bezier(.22, .9, .2, 1) !important;
    will-change: transform !important;
  }
  .swiper-slide {
    min-width: 100% !important;
    height: 100% !important;
    padding: 0 8px 16px !important;
  }
  .swiper-slide img,
  .swiper-slide video,
  .swiper-media {
    max-width: 100% !important;
    max-height: calc(100dvh - 150px) !important;
    object-fit: contain !important;
  }

  .swiper-footer {
    position: fixed !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    padding: 10px 14px calc(10px + env(safe-area-inset-bottom, 0px)) !important;
    flex-wrap: wrap !important;
    justify-content: space-around !important;
  }
  #swiper-counter { margin: 0 auto !important; }
  .swiper-footer .vc-btn,
  .swiper-footer .btn {
    flex: 1 1 0 !important;
    min-width: 0 !important;
    font-size: 11.5px !important;
    padding: 8px 10px !important;
  }

  /* Mobile bottom sheet for image details */
  .mobile-swiper-sheet {
    display: flex !important;
    flex-direction: column !important;
    position: fixed !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    background: rgba(8,8,8,.96) !important;
    backdrop-filter: blur(24px) !important;
    border-radius: 18px 18px 0 0 !important;
    border-top: 1px solid var(--vc-line) !important;
    z-index: 5 !important;
    transform: translateY(calc(100% - 60px)) !important;
    transition: transform .25s var(--vc-ease) !important;
    padding: 10px 16px 20px !important;
  }
  .mobile-swiper-sheet.open {
    transform: translateY(0) !important;
  }
  .mobile-swiper-sheet-handle {
    width: 36px !important;
    height: 4px !important;
    background: rgba(255,255,255,.2) !important;
    border-radius: var(--vc-r-pill) !important;
    margin: 4px auto 12px !important;
  }
  .mobile-only-btn { display: inline-flex !important; }

  /* ============ MODALS ============ */
  .modal-content {
    width: 96vw !important;
    max-height: 92vh !important;
    border-radius: var(--vc-r-lg) !important;
  }
  .modal-panel-board,
  .modal-panel-xl,
  .modal-panel-search,
  .modal-panel-picker,
  .modal-panel-fill,
  .modal-panel-lg,
  .modal-panel-md,
  .modal-panel-persona,
  .modal-panel-brainstorm,
  .lora-picker-modal-content,
  .settings-modal-content {
    width: 96vw !important;
    max-width: 96vw !important;
  }
  .settings-modal-grid {
    grid-template-columns: 1fr !important;
  }
  .settings-main-column { border-right: 0 !important; }

  /* Lora picker grid → 2 cols */
  .lora-picker-grid,
  .thumbnail-picker-grid,
  .prompt-search-grid,
  .asset-manager-items-grid,
  .modal-grid-catalog {
    grid-template-columns: 1fr 1fr !important;
    gap: 8px !important;
  }

  /* Asset manager — column stack */
  .asset-manager-workspace {
    grid-template-columns: 1fr !important;
  }
  .asset-manager-sidebar {
    border-right: 0 !important;
    border-bottom: 1px solid var(--vc-line) !important;
    max-height: 200px !important;
  }

  /* ============ STUDIO PANEL ============ */
  .generation-panel {
    width: 100vw !important;
  }
  .vc-studio-tabs {
    overflow-x: auto !important;
    scrollbar-width: none;
  }
  .vc-studio-tabs::-webkit-scrollbar { display: none; }

  /* ============ RIGHT SIDEBAR (Tools & Engine) ============ */
  .right-sidebar {
    width: 100vw !important;
    max-width: 100vw !important;
    z-index: calc(var(--vc-z-overlay) + 10) !important; /* 오버레이보다 높은 z-index로 모바일 클릭 먹통 방지 */
  }

  /* ============ BOTTOM TAB BAR (mobile-only persistent nav) ============ */
  .vc-bottom-tabs {
    position: fixed !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    height: 60px !important;
    padding: 6px 6px calc(6px + env(safe-area-inset-bottom, 0px)) !important;
    background: rgba(10,10,10,.95) !important;
    backdrop-filter: blur(20px) !important;
    border-top: 1px solid var(--vc-line) !important;
    z-index: var(--vc-z-sticky) !important;
    display: flex !important;
    align-items: stretch !important;
    justify-content: space-around !important;
  }
  .vc-bottom-tab {
    flex: 1 !important;
    display: inline-flex !important;
    flex-direction: column !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 2px !important;
    background: transparent !important;
    border: 0 !important;
    color: var(--vc-ink-4) !important;
    font-family: var(--vc-font-sans) !important;
    font-size: 10px !important;
    font-weight: 600 !important;
    cursor: pointer !important;
  }
  .vc-bottom-tab.active { color: var(--vc-ink) !important; }
  .vc-bottom-tab svg { width: 20px; height: 20px; }
}

/* Mobile Safari viewport quirk fix */
@supports (-webkit-touch-callout: none) {
  .app-container { height: -webkit-fill-available !important; }
}