/* -- Mobile Responsive Design -- */

/* Mobile hamburger toggle button */
.mobile-toggle{
  display:none;
  background:none;
  border:none;
  color:var(--neutral-900);
  padding:var(--space-2);
  cursor:pointer;
  /* Must be above sidebar (100) so user can tap it even when sidebar is open */
  z-index:calc(var(--z-overlay) + 10);
  position:relative;
  flex-shrink:0;
  min-width:40px;
  min-height:40px;
  align-items:center;
  justify-content:center;
  border-radius:var(--radius-md);
  transition:background var(--transition-fast);
}
.mobile-toggle:hover,.mobile-toggle:active{background:rgba(0,0,0,0.04)}
.mobile-toggle svg{width:24px;height:24px;display:block}

/* Sidebar overlay backdrop */
/* Backdrop: above header (z-header:90) so it dims content, but below the hamburger button */
.sidebar-backdrop{
  display:none;
  position:fixed;
  inset:0;
  background:rgba(0,0,0,.55);
  z-index:calc(var(--z-sidebar) - 1);
  /* Pointer events only when active */
  pointer-events:none;
  backdrop-filter:blur(1px);
  -webkit-backdrop-filter:blur(1px);
  transition:opacity var(--transition-normal);
  opacity:0;
}
.sidebar-backdrop.active{
  display:block;
  pointer-events:auto;
  opacity:1;
}

/* -- Tablet (<=1024px) -- */
@media(max-width:1024px){
  .dashboard-grid{grid-template-columns:repeat(2,1fr)!important}
  .dashboard-charts,.dashboard-primary-grid,.dashboard-bottom-grid{grid-template-columns:1fr!important}
  .detail-overview{grid-template-columns:repeat(2,1fr)}
  .detail-actions{grid-template-columns:repeat(2,1fr)}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .file-manager{grid-template-columns:1fr;height:auto}
  .file-tree{max-height:250px}
  .device-row{grid-template-columns:40px 1fr 80px 100px 100px;font-size:var(--text-xs)}
  .device-row .actions{opacity:1}
  .content{padding:14px}
}

/* -- Mobile (<=768px) -- */
@media(max-width:768px){
  .mobile-toggle{display:flex}

  .sidebar{
    position:fixed;
    left:-280px;
    top:0;
    width:260px;
    min-width:260px;
    height:100vh;
    z-index:var(--z-sidebar);
    transition:left var(--transition-normal);
    box-shadow:var(--shadow-md);
    overflow-y:auto;
    -webkit-overflow-scrolling:touch
  }
  .sidebar.mobile-open{left:0}

  /* Keep app-shell as row so main-content + sticky header work correctly */
  .app-shell{display:flex;flex-direction:row}
  .main-content{flex:1;width:100%;min-width:0}

  .header{padding:0 var(--space-3);gap:var(--space-2);height:56px}
  .header-left{gap:var(--space-2);flex:1;min-width:0}
  .header h1,.header #page-title{font-size:var(--text-base)!important;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:calc(100vw - 180px)}
  .header-right{font-size:var(--text-xs);flex-shrink:0;color:var(--neutral-400)}
  .header-search,.header-organization,.header-right>a{display:none}
  .header-user{width:34px;height:34px}

  .content{padding:var(--space-3);padding-bottom:82px}
  .page-title{font-size:var(--text-lg);margin-bottom:var(--space-3)}

  .dashboard-grid{grid-template-columns:repeat(2,1fr)!important;gap:0}
  .dashboard-charts,.dashboard-primary-grid,.dashboard-bottom-grid{grid-template-columns:1fr!important;gap:10px}
  .detail-overview{grid-template-columns:repeat(2,1fr);gap:var(--space-2)}
  .detail-actions{grid-template-columns:repeat(2,1fr);gap:var(--space-2)}
  .grid-4,.grid-3,.grid-2{grid-template-columns:1fr;gap:var(--space-2)}

  .metric-tile{padding:10px}
  .metric-value{font-size:var(--text-xl)}
  .card{padding:var(--space-3)}

  .device-row{
    grid-template-columns:30px 1fr;
    gap:var(--space-2);
    padding:var(--space-3);
    position:relative
  }
  .device-row>span:nth-child(n+3),
  .device-row>div:nth-child(n+5){display:none}
  .device-row .actions{opacity:1;position:absolute;right:var(--space-3);top:50%;transform:translateY(-50%)}

  .toolbar{flex-direction:column;gap:var(--space-2)}
  .search-input{min-width:100%;width:100%}
  .filter-select{width:100%}
  .toolbar .btn{width:100%;justify-content:center}

  .file-manager{grid-template-columns:1fr;height:auto;gap:var(--space-3)}
  .file-tree{max-height:200px;min-height:0}
  .file-preview{min-height:300px}

  .data-table{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch}
  .data-table th,.data-table td{white-space:nowrap;padding:var(--space-2)}

  .stream-container{min-height:50vh}
  .media-container{min-height:200px}
  .remote-media-viewport{height:calc(100dvh - 170px);min-height:360px}

  .modal,.modal-content{min-width:90vw;max-width:95vw;margin:var(--space-3)}
  .modal-overlay{padding:var(--space-3)}

  .auth-card{width:100%;max-width:400px;padding:var(--space-4)}
  .auth-page{padding:10px;align-items:flex-start}
  .onboarding-page{padding:0}
  .onboarding-shell{border-left:0;border-right:0;min-height:100vh}
  .onboarding-header{height:56px;padding:0 12px}
  .onboarding-progress button{padding:11px 8px;font-size:10px}
  .onboarding-content{padding:20px 14px;min-height:calc(100vh - 104px)}
  .onboarding-step h1{font-size:25px}
  .onboarding-field-grid{grid-template-columns:1fr;gap:14px}
  .onboarding-review>div{grid-template-columns:1fr;gap:4px;padding:12px}
  .onboarding-actions{position:sticky;bottom:0;background:#fff;padding:12px 0 0}

  .tabs{overflow-x:auto;-webkit-overflow-scrolling:touch;flex-wrap:nowrap}
  .tab{white-space:nowrap;flex-shrink:0}

  .action-card{padding:var(--space-3)}
  .action-card svg{width:20px;height:20px}
  .action-card span{font-size:11px}

  .activity-item{flex-wrap:wrap;gap:var(--space-1)}
  .activity-device{min-width:auto}
  .activity-time{min-width:auto}

  .erp-workspace-strip-inner{padding:12px}
  .erp-workspace-actions{width:100%}
  .erp-workspace-actions .btn{flex:1 1 calc(50% - 6px)}
  .erp-summary-grid,.erp-summary-grid.cols-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .erp-summary-cell:nth-child(2n){border-right:0}

  .extensions-section-head{flex-direction:column;padding:12px}
  .extensions-device-select{width:100%;min-width:0;align-items:flex-start;flex-direction:column}
  .extensions-device-select select{width:100%;min-width:0}
  .extensions-table{min-width:720px}
  .extensions-actions{min-width:130px}
  .extension-market-hero{padding:14px 0;flex-direction:column}
  .extension-market-hero h2{font-size:23px}
  .extension-market-toolbar{align-items:stretch;flex-direction:column;padding-bottom:12px}
  .extension-search{width:100%}
  .extension-market-counts{text-align:center}
  .extension-target-picker{align-items:flex-start;flex-direction:column}
  .extension-target-picker .extensions-device-select{width:100%}
  .extension-market-heading{align-items:flex-start;flex-direction:column}
  .extension-market-summary{justify-content:flex-start}
  .extension-market-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
  .extension-artwork{height:116px;margin:10px 10px 0}
  .extension-artwork svg{width:40px;height:40px}
  .extension-artwork span{font-size:17px}

  .audio-bars{height:50px}

  .mobile-bottom-nav{position:fixed;z-index:calc(var(--z-sidebar) - 5);right:0;bottom:0;left:0;display:grid;grid-template-columns:repeat(5,1fr);padding:5px max(5px,env(safe-area-inset-right)) calc(5px + env(safe-area-inset-bottom)) max(5px,env(safe-area-inset-left));border-top:1px solid var(--border-default);background:rgba(255,255,255,.97);box-shadow:0 -10px 30px rgba(19,32,56,.08);backdrop-filter:blur(14px)}
  .mobile-bottom-nav a,.mobile-bottom-nav button{display:flex;min-width:0;min-height:52px;align-items:center;justify-content:center;flex-direction:column;gap:3px;padding:4px;border:0;border-radius:8px;background:transparent;color:var(--text-secondary);font-size:9px;font-weight:700;text-decoration:none}.mobile-bottom-nav a.active{background:#eef4ff;color:var(--action-primary)}.mobile-bottom-nav svg{width:20px;height:20px}
  body.shellless-route .mobile-bottom-nav{display:none!important}
}

/* -- Small Mobile (<=480px) -- */
@media(max-width:480px){
  .dashboard-grid{grid-template-columns:1fr!important;gap:0}
  .detail-overview{grid-template-columns:1fr}
  .detail-actions{grid-template-columns:1fr}

  .header h1,.header #page-title{max-width:140px;font-size:var(--text-sm)!important}

  .btn{padding:var(--space-2) var(--space-3);font-size:var(--text-xs)}
  .btn-lg{padding:var(--space-2) var(--space-4);font-size:var(--text-sm)}

  .erp-workspace-actions .btn{flex:1 1 100%}
  .erp-summary-grid,.erp-summary-grid.cols-3{grid-template-columns:1fr}
  .erp-summary-cell{border-right:0;border-bottom:1px solid rgba(22,32,51,.10)}
  .erp-summary-cell:last-child{border-bottom:0}

  .extensions-table{min-width:680px}
  .extensions-empty{align-items:flex-start;flex-direction:column}
  .extensions-empty span{min-width:0}
  .extension-market-grid{grid-template-columns:1fr}
  .extension-market-card{border-radius:12px}
  .extension-artwork{height:124px}

  .device-row .actions{gap:2px}
  .device-row .actions .btn{padding:var(--space-1)}
}

/* -- Landscape phone fix -- */
@media(max-height:500px) and (orientation:landscape){
  .sidebar{height:100vh;overflow-y:auto}
  .stream-container{min-height:calc(100vh - 100px)}
}