/* SAID mobile-first interaction layer.
   Desktop remains canonical above 850px; phones get a purpose-built data-app shell. */
.mobile-nav-toggle,
.mobile-market-control,
.mobile-market-badge,
.mobile-nav-label{display:none}

@media(max-width:850px){
  html{scroll-padding-top:92px}
  body{min-width:0;background:var(--paper)}
  .workspace{margin-left:0;min-width:0;padding-bottom:calc(78px + env(safe-area-inset-bottom))}

  /* Compact product bar. Navigation moves to the thumb zone. */
  .rail{
    position:sticky;inset:auto;top:0;z-index:50;width:100%;height:auto;
    padding:max(12px,env(safe-area-inset-top)) max(16px,env(safe-area-inset-right)) 12px max(16px,env(safe-area-inset-left));
    display:flex;align-items:center;justify-content:space-between;gap:14px;
    background:var(--nav);border-right:0;border-bottom:1px solid rgba(255,255,255,.08)
  }
  .brand{display:flex;align-items:center;min-width:0;margin:0;color:#fff}
  .brand-logo{display:block;width:104px;height:auto}
  .brand span,.rail-label,.rail-bottom{display:none}
  .mobile-market-badge{display:none}
  .mobile-market-control{
    display:flex;flex-direction:column;align-items:flex-end;gap:2px;margin-left:auto;min-width:0;color:#fff
  }
  .mobile-market-control span{font-size:8px;letter-spacing:1.1px;text-transform:uppercase;color:#83c8b9}
  .mobile-market-control select{
    min-height:44px;max-width:154px;padding:7px 30px 7px 10px;
    border:1px solid rgba(255,255,255,.18);border-radius:8px;
    background:#17313a;color:#fff;font-size:16px;line-height:1.1
  }
  .mobile-market-control select:focus-visible{outline-color:#d99939}

  #nav{
    position:fixed;left:0;right:0;bottom:0;z-index:70;
    display:grid!important;grid-template-columns:repeat(5,minmax(0,1fr));gap:0;
    margin:0;padding:6px max(5px,env(safe-area-inset-right)) max(6px,env(safe-area-inset-bottom)) max(5px,env(safe-area-inset-left));
    background:rgba(255,255,255,.97);border-top:1px solid var(--line);
    box-shadow:0 -8px 28px rgba(14,31,38,.08);
    color:var(--muted);overflow:visible;
    -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)
  }
  #nav a{
    display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
    min-width:0;min-height:52px;margin:0;padding:4px 2px;border-radius:9px;
    color:#62777c;font-size:9px;font-weight:600;line-height:1.05;letter-spacing:.05px;
    white-space:nowrap;text-align:center
  }
  #nav a:hover{background:#f0f5f4;color:var(--ink)}
  #nav a.active{background:transparent;color:var(--teal)}
  #nav a.active:after{display:none}
  #nav a.active .nav-icon{background:var(--mint);color:#126e6b}
  .nav-icon{
    display:grid;place-items:center;width:30px;height:25px;border-radius:8px;
    font-size:18px;line-height:1
  }
  .desktop-nav-label{display:none}
  .mobile-nav-label{display:block;max-width:100%;overflow:hidden;text-overflow:ellipsis}

  /* The desktop breadcrumb bar is redundant on a phone. */
  .top{display:none}
  .demo{
    min-height:29px;margin:0;padding:6px max(16px,env(safe-area-inset-right)) 6px max(16px,env(safe-area-inset-left));
    display:flex;align-items:center;justify-content:center;
    border-bottom:1px solid var(--line);background:#eaf0ef
  }
  .demo>div:first-child{display:none}
  .source-check{
    margin:0;width:auto;max-width:100%;font-size:9px;line-height:1.3;letter-spacing:.35px;
    white-space:nowrap;overflow:hidden;text-overflow:ellipsis
  }

  main{
    width:100%;max-width:100%;min-width:0;margin:0;
    padding:24px max(16px,env(safe-area-inset-right)) 34px max(16px,env(safe-area-inset-left))
  }
  #main{scroll-margin-top:90px}
  .page-head{
    display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:start;gap:14px;
    min-width:0;margin-bottom:20px;padding:0;overflow:visible
  }
  .page-head:after{display:none}
  .page-head>div:first-child{min-width:0}
  .page-head .eyebrow{display:none}
  .eyebrow{margin-bottom:6px;font-size:9px;letter-spacing:1.45px}
  h1{margin-bottom:7px;font-size:clamp(28px,7.3vw,34px);line-height:1.06;letter-spacing:-1.05px}
  .subtitle{font-size:13px;line-height:1.42}
  .head-actions{display:flex;gap:8px;margin:0;white-space:normal}
  .head-actions button{min-height:44px;padding:9px 11px;font-size:11px;white-space:nowrap}

  /* Market switching lives in the product bar; Residential is the fixed public asset class. */
  .filters{display:none}

  .metric-grid{
    display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
    gap:10px;margin-bottom:20px;min-width:0
  }
  .metric{
    min-width:0;min-height:142px;padding:16px;border-radius:8px;
    touch-action:manipulation
  }
  .metric:hover{transform:none;box-shadow:0 1px 0 rgba(14,31,38,.015)}
  .metric-label{font-size:12px;line-height:1.3;overflow-wrap:anywhere}
  .metric-value{margin:11px 0 7px;font-size:clamp(27px,7vw,33px);line-height:1.02;letter-spacing:-.8px}
  .metric-foot{display:block;font-size:11px;line-height:1.35}
  .metric-foot>span{display:block;overflow-wrap:anywhere}
  .metric-source{font-size:10px;overflow-wrap:anywhere}
  .metric-spark{margin-top:7px}

  .panel,.two-col,.lower-grid,.definition-grid,.compare-picks{min-width:0}
  .two-col,.lower-grid,.definition-grid,.compare-picks{grid-template-columns:1fr;gap:14px}
  .panel{border-radius:8px}
  .panel-head{
    min-width:0;align-items:flex-start;gap:10px;padding:17px 16px 10px
  }
  .panel-head>div{min-width:0}
  .panel-head h2{font-size:16px;line-height:1.25}
  .panel-head p{line-height:1.4}
  .panel-head a{display:inline-flex;align-items:center;min-height:40px}
  .panel-note{padding:12px 16px;line-height:1.45}
  .notice{padding:14px 16px;line-height:1.45}

  /* Analytical tabs become a swipe row rather than wrapped button blocks. */
  .tabs{
    display:flex;flex-wrap:nowrap;gap:8px;max-width:none;
    margin:0 -16px 19px;padding:0 16px 4px;
    overflow-x:auto;overscroll-behavior-inline:contain;
    scroll-snap-type:x proximity;scrollbar-width:none;
    -webkit-overflow-scrolling:touch
  }
  .tabs::-webkit-scrollbar{display:none}
  .tabs button{
    flex:0 0 auto;min-height:42px;min-width:44px;padding:8px 12px;
    scroll-snap-align:start;white-space:nowrap
  }
  .panel>.tabs{margin:0!important;padding:0 16px 14px!important}

  .segments{flex:0 0 auto}
  .segments button{min-width:42px;min-height:38px;padding:6px 8px}

  /* A chart should be legible as a whole on a phone, not require sideways panning. */
  .chart-wrap{max-width:100%;overflow:hidden;padding:10px 10px 12px}
  .chart-wrap svg{display:block;width:100%;min-width:0;max-width:100%;height:auto}
  .chart-wrap text{font-size:11px}
  .legend{gap:8px 13px;padding:0 16px 16px;font-size:11px}

  .condition{min-height:60px;align-items:flex-start;padding:14px 16px;gap:10px}
  .condition>div{min-width:0;line-height:1.35}
  .condition small{line-height:1.35}
  .condition .pill{
    flex:0 0 auto;max-width:42%;white-space:normal;text-align:right;
    font-size:10px;line-height:1.25;overflow-wrap:anywhere
  }

  .history-summary{
    display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
    gap:8px;padding:0 16px 15px
  }
  .history-summary span{min-width:0}
  .history-meta{display:grid;grid-template-columns:1fr;gap:7px;padding:0 16px 16px}

  .definition{padding:20px 18px}
  .definition p,.definition li{font-size:13px}
  .coverage-number{font-size:38px}

  .table-wrap{max-width:100%;overflow:visible}
  .table-wrap table.mobile-stack-table,
  .table-wrap table.mobile-stack-table tbody,
  .table-wrap table.mobile-stack-table tr,
  .table-wrap table.mobile-stack-table td{display:block;width:100%}
  .table-wrap table.mobile-stack-table thead{display:none}
  .table-wrap table.mobile-stack-table tr{
    padding:12px 14px;border-bottom:1px solid var(--line)
  }
  .table-wrap table.mobile-stack-table tr:last-child{border-bottom:0}
  .table-wrap table.mobile-stack-table td{
    position:relative!important;left:auto!important;min-width:0!important;
    padding:6px 0 6px 42%;border:0!important;background:transparent!important;
    white-space:normal;overflow-wrap:anywhere
  }
  .table-wrap table.mobile-stack-table td:first-child{
    padding:3px 0 8px;margin-bottom:2px;font-weight:600
  }
  .table-wrap table.mobile-stack-table td:not(:first-child):before{
    content:attr(data-mobile-label);position:absolute;left:0;top:6px;width:37%;
    color:var(--muted);font-size:9px;font-weight:600;letter-spacing:.55px;text-transform:uppercase
  }
  .table-wrap td button{min-height:38px;min-width:38px;padding:4px 0}

  /* Evidence behaves like a native bottom sheet. */
  dialog{
    inset:auto 0 0 0;width:100%;height:min(88dvh,760px);max-height:88dvh;
    margin:auto 0 0;padding:
      52px max(20px,env(safe-area-inset-right))
      max(28px,calc(env(safe-area-inset-bottom) + 18px))
      max(20px,env(safe-area-inset-left));
    border:0;border-top:1px solid var(--line);border-radius:18px 18px 0 0;
    box-shadow:0 -18px 60px rgba(16,42,49,.24);overflow-y:auto
  }
  dialog::backdrop{background:rgba(16,42,49,.48)}
  dialog .close{
    min-width:44px;min-height:44px;right:max(8px,env(safe-area-inset-right));top:6px
  }
  .evidence-value{font-size:clamp(42px,13vw,56px);overflow-wrap:anywhere}

  footer{
    display:grid;grid-template-columns:1fr;gap:9px;
    padding:18px max(16px,env(safe-area-inset-right)) 20px max(16px,env(safe-area-inset-left))
  }
  footer a{margin-left:0}
}

@media(max-width:620px){
  .head-actions{margin-top:0}
  .head-actions button{width:max-content}
  .history-summary{grid-template-columns:1fr;gap:6px}
}

@media(max-width:430px){
  .rail{
    padding-left:max(14px,env(safe-area-inset-left));
    padding-right:max(14px,env(safe-area-inset-right))
  }
  .brand-logo{width:96px}
  main{
    padding-left:max(14px,env(safe-area-inset-left));
    padding-right:max(14px,env(safe-area-inset-right))
  }
  h1{font-size:29px}
  .head-actions button{width:100%}
  .metric{padding:14px;min-height:136px}
  .metric-label{font-size:11px}
  .metric-value{font-size:clamp(25px,7.4vw,30px)}
  #nav a{font-size:8.5px}
  .nav-icon{font-size:17px}
}

@media(max-width:360px){
  .brand-logo{width:90px}
  .page-head{grid-template-columns:1fr}
  .head-actions{margin-top:-2px}
  .metric{min-height:132px}
  #nav a{font-size:8px}
  .table-wrap table.mobile-stack-table td{padding-left:44%}
  .table-wrap table.mobile-stack-table td:not(:first-child):before{width:40%}
}

@media(orientation:landscape) and (max-width:850px) and (max-height:500px){
  .rail{position:relative;padding-top:9px;padding-bottom:9px}
  .demo{display:none}
  main{padding-top:18px}
  #nav{padding-top:3px}
  #nav a{min-height:46px}
  .nav-icon{height:20px;font-size:16px}
}

@media(prefers-reduced-motion:reduce){
  *,*:before,*:after{scroll-behavior:auto!important;transition-duration:.001ms!important}
}