/* ALTER v0.6 responsive shell */
.nav-toggle{
  flex:0 0 auto;
  width:40px;
  height:40px;
  border:1px solid var(--line);
  border-radius:10px;
  background:rgba(255,255,255,.025);
  display:grid;
  place-content:center;
  gap:4px;
  padding:0;
}
.nav-toggle span{
  display:block;
  width:16px;
  height:1px;
  background:#b9c1cb;
  transition:transform .2s ease,opacity .2s ease;
}
.nav-toggle:hover{border-color:var(--line-strong);background:rgba(255,255,255,.05)}
.nav-backdrop{display:none}
.shell{display:block}
.main{
  grid-column:auto;
  margin-left:246px;
  transition:margin-left .24s ease;
}
.sidebar{
  transition:transform .24s ease,box-shadow .24s ease;
}
body.sidebar-collapsed .sidebar{
  transform:translateX(-104%);
}
body.sidebar-collapsed .main{
  margin-left:0;
}

/* Clipboard + selection reliability */
.modal input,
.modal textarea,
.modal select,
.property-search input,
.palette input{
  -webkit-user-select:text!important;
  user-select:text!important;
  -webkit-touch-callout:default!important;
  touch-action:manipulation;
}
.modal textarea{resize:vertical}

/* Mobile and tablet shell */
@media(max-width:860px){
  body{overscroll-behavior-x:none}
  .shell{display:block}
  .main{
    margin-left:0!important;
    padding-top:0!important;
    min-width:0;
  }
  .sidebar{
    position:fixed!important;
    inset:0 auto 0 0!important;
    width:min(84vw,320px)!important;
    height:auto!important;
    padding:18px 14px calc(18px + env(safe-area-inset-bottom))!important;
    display:flex!important;
    flex-direction:column!important;
    transform:translateX(-105%);
    z-index:90!important;
    box-shadow:28px 0 80px rgba(0,0,0,.58);
  }
  body.mobile-nav-open .sidebar{transform:translateX(0)}
  .sidebar .brand{
    padding:6px 8px 18px!important;
    border-bottom:1px solid var(--line)!important;
  }
  .sidebar .brand small{display:block!important}
  .sidebar .brand-mark{width:36px!important;height:36px!important}
  .sidebar .nav{
    position:static!important;
    inset:auto!important;
    width:auto!important;
    height:auto!important;
    max-height:none!important;
    flex:1;
    min-height:0;
    padding:14px 0!important;
    display:flex!important;
    flex-direction:column!important;
    gap:4px!important;
    overflow-y:auto!important;
    overflow-x:hidden!important;
    background:transparent!important;
    border:0!important;
  }
  .sidebar .nav button{
    min-width:0!important;
    width:100%;
    min-height:44px;
    padding:10px 11px!important;
    flex-direction:row!important;
    justify-content:flex-start!important;
    gap:10px!important;
    font-size:13px!important;
  }
  .sidebar .nav-icon{font-size:12px!important}
  .sidebar-foot{display:block!important}
  .nav-backdrop{
    display:none;
    position:fixed;
    inset:0;
    z-index:80;
    border:0;
    background:rgba(0,0,0,.58);
    backdrop-filter:blur(4px);
  }
  body.mobile-nav-open .nav-backdrop{display:block}

  .topbar{
    position:sticky!important;
    top:0!important;
    height:auto!important;
    min-height:64px;
    padding:8px 10px!important;
    display:grid!important;
    grid-template-columns:44px minmax(0,1fr) auto;
    align-items:center;
    gap:8px!important;
    z-index:50!important;
  }
  .nav-toggle{
    width:44px;
    height:44px;
  }
  .search-trigger{
    min-width:0;
    width:100%;
    max-width:none!important;
    height:44px!important;
    padding:0 10px!important;
  }
  .search-trigger>span:nth-child(2){
    min-width:0;
    overflow:hidden;
    text-overflow:ellipsis;
    white-space:nowrap;
  }
  .search-trigger .key{display:none}
  .top-actions{
    margin-left:0!important;
    gap:6px!important;
  }
  .top-actions .btn:not(.primary){display:none!important}
  .top-actions .btn.primary{
    width:44px;
    height:44px;
    padding:0;
    font-size:0;
    display:grid;
    place-items:center;
  }
  .top-actions .btn.primary::after{
    content:"+";
    font-size:22px;
    line-height:1;
    font-weight:500;
  }

  .content{
    padding:18px 12px calc(34px + env(safe-area-inset-bottom))!important;
    max-width:none!important;
  }
  .page-head{
    align-items:flex-start!important;
    flex-direction:column!important;
    gap:14px!important;
    margin-bottom:18px!important;
  }
  .page-head>div:last-child,
  .head-actions{
    width:100%;
  }
  .head-actions .btn,
  .page-head>div:last-child>.btn{
    min-height:42px;
  }
  .page-head h2{font-size:26px!important}
  .page-head p{font-size:12px!important;line-height:1.6}
  .grid.cols-4,.grid.cols-3,.grid.cols-2{
    grid-template-columns:1fr!important;
  }
  .span-2,.span-3{grid-column:auto!important}
  .detail-layout{grid-template-columns:1fr!important}
  .intel-grid{grid-template-columns:1fr!important}
  .property-query-card{grid-template-columns:1fr!important;padding:16px!important}
  .query-status{grid-column:auto!important}
  .property-search{flex-direction:column!important}
  .property-search .btn{height:44px}
  .location-hero{grid-template-columns:1fr!important}
  .location-visual{border-right:0!important;border-bottom:1px solid rgba(143,216,209,.1)}
  .location-command{padding:20px!important}
  .site-primary-stats{grid-template-columns:1fr 1fr!important}
  .record-grid{grid-template-columns:1fr 1fr!important}

  .modal-wrap,.palette-wrap{
    padding:0!important;
    place-items:end stretch!important;
    background:rgba(0,0,0,.72)!important;
  }
  .modal{
    width:100%!important;
    max-width:none!important;
    max-height:92vh!important;
    border-radius:18px 18px 0 0!important;
    border-left:0!important;
    border-right:0!important;
    border-bottom:0!important;
    padding-bottom:env(safe-area-inset-bottom);
  }
  .archive-editor-modal{max-height:92vh!important}
  .modal-head{
    padding:14px 16px!important;
  }
  .modal-body{padding:16px!important}
  .modal-foot{
    position:sticky;
    bottom:0;
    z-index:3;
    padding:12px 16px calc(12px + env(safe-area-inset-bottom))!important;
    background:rgba(9,12,17,.97);
    backdrop-filter:blur(10px);
    border-top:1px solid var(--line);
  }
  .form-grid,.archive-editor-grid{grid-template-columns:1fr!important}
  .form-field.full{grid-column:auto!important}
  .form-field input,
  .form-field textarea,
  .form-field select,
  .property-search input,
  .palette input{
    font-size:16px!important;
  }
  .form-field input,
  .form-field select{
    min-height:44px!important;
  }
  .form-field textarea{
    min-height:120px!important;
    line-height:1.5;
  }
  .relationship-checks{grid-template-columns:1fr!important}
  .quick-intel-grid{grid-template-columns:1fr 1fr!important}
  .backup-actions{width:100%}
  .backup-actions .btn{flex:1}

  .history-table>div{grid-template-columns:1fr auto!important}
  .history-table b{grid-column:1/-1!important}
  .coordinate-block{grid-template-columns:auto 1fr!important}
}

@media(max-width:560px){
  .entity-grid{grid-template-columns:1fr!important}
  .quick-intel-grid{grid-template-columns:1fr!important}
  .record-grid,.lookup-preview-grid{grid-template-columns:1fr!important}
  .site-mini-facts{grid-template-columns:1fr 1fr!important}
  .hero-meta{display:grid!important;grid-template-columns:1fr 1fr;gap:14px!important}
  .hero-card{padding:20px!important}
  .hero-card h3{font-size:23px!important}
  .location-command h2{font-size:24px!important}
  .topbar{grid-template-columns:44px minmax(0,1fr) 44px}
  .search-trigger>span:nth-child(2){font-size:11px}
  .page-head .btn{width:100%}
  .head-actions{display:grid!important;grid-template-columns:1fr!important}
}

@media(max-width:360px){
  .content{padding-left:9px!important;padding-right:9px!important}
  .topbar{padding-left:7px!important;padding-right:7px!important;gap:6px!important}
  .search-trigger{padding:0 8px!important}
  .search-trigger>span:nth-child(2){display:none}
}


/* v0.6: installed-PWA/mobile header reliability.
   Search always gets its own visible row below the menu controls. */
@media(max-width:860px){
  .topbar{
    grid-template-columns:44px minmax(0,1fr) 44px!important;
    grid-template-areas:
      "menu . actions"
      "search search search"!important;
    row-gap:8px!important;
    min-height:108px!important;
    padding:
      calc(8px + env(safe-area-inset-top))
      max(10px,env(safe-area-inset-right))
      9px
      max(10px,env(safe-area-inset-left))!important;
  }
  .nav-toggle{grid-area:menu}
  .search-trigger{
    grid-area:search;
    display:flex!important;
    visibility:visible!important;
    opacity:1!important;
  }
  .top-actions{
    grid-area:actions;
    justify-self:end;
  }
  .content{
    padding-top:16px!important;
  }
}

@media(max-width:560px){
  .topbar{
    grid-template-columns:44px minmax(0,1fr) 44px!important;
  }
  .search-trigger>span:nth-child(2){
    display:block!important;
    font-size:11px!important;
  }
}

@media(max-width:360px){
  .search-trigger>span:nth-child(2){
    display:block!important;
    overflow:hidden;
    text-overflow:ellipsis;
    white-space:nowrap;
  }
}

/* Explicit standalone handling for iOS/Android installed PWAs. */
@media (display-mode: standalone) and (max-width:860px){
  .topbar{
    padding-top:calc(10px + env(safe-area-inset-top))!important;
  }
}