/* UI layer: icons, single header, mobile bottom navigation, compact vertical rhythm, collapsible filters. */
.ico{flex:none;display:inline-block;vertical-align:-4px}
.ico-sm{width:16px;height:16px;vertical-align:-3px;margin-left:4px}
.ico.filled{fill:currentColor}
.icon-button{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:10px;border:0;background:transparent;color:var(--n8);margin:0;padding:0}
.icon-button:hover{background:var(--n3);color:var(--ink)}
.icon-button .ico{width:20px;height:20px}
.top-actions{gap:2px}

/* icon-only utility buttons (download, copy, link, star, ask AI ...) */
.button.icon-btn,.chart-foot button.icon-btn{width:38px;height:38px;min-width:38px;padding:0;border-radius:10px;display:inline-grid;place-items:center;gap:0;text-decoration:none}
.chart-foot button.icon-btn{width:32px;height:32px;min-width:32px;background:transparent;border:1px solid var(--line);color:var(--n8)}
.chart-foot button.icon-btn:hover{background:var(--n3);color:var(--ink)}
.icon-btn .btn-text{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.icon-btn[aria-label^="Saved"],.icon-btn[aria-label^="Saved"] .ico{color:var(--heat)}
.page-intro .button,.page-intro .intro-controls .button{white-space:nowrap}

/* sidebar nav icons */
nav a>.ico{width:20px;height:20px;margin:0;flex:none}
nav a>span.nav-label{font-size:var(--text-sm);font-weight:var(--weight-medium)}
.icon-btn.cta{width:auto;padding:0 14px;display:inline-flex;gap:8px}
.icon-btn.cta .btn-text{position:static;width:auto;height:auto;clip:auto;overflow:visible}
.nav-more{display:none}
.more-sheet{display:none}
.filter-bar{display:none}

/* collapsible filters: one compact summary bar, expands in place */
.filter-collapse{margin:0 0 12px}
.filter-collapse .filter-bar{display:flex;align-items:center;gap:8px;width:100%;min-height:40px;padding:0 12px;border:1px solid var(--line);border-radius:10px;background:var(--n0);color:var(--ink);font-size:var(--text-sm);text-align:left}
.filter-bar .filter-sum{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--n8)}
.filter-bar .chev{transition:transform .15s;color:var(--n7)}
.filter-collapse.open .chev{transform:rotate(180deg)}
.filter-collapse .room-controls{display:none;margin-top:8px;padding:12px;border:1px solid var(--line);border-radius:10px;background:var(--n0)}
.filter-collapse.open .room-controls{display:flex}

@media(max-width:760px){
  /* ONE header: logo left, theme/info right. The sidebar becomes a bottom tab bar. */
  .shell{display:block}
  .sidebar{display:contents}
  .brand{position:fixed;top:0;left:0;z-index:50;height:48px;padding:0 14px;gap:9px;font-size:var(--text-md);align-items:center;margin:0}
  .brand br{display:none}.brand strong{margin-left:4px}
  svg.brandmark{width:26px;height:26px}
  .district-label,.saved-label,.saved-schools,.sidebar-bottom,footer{display:none!important}
  .workspace{margin:0;width:100%;padding-top:48px}
  .topbar{position:fixed;top:0;left:0;right:0;z-index:40;height:48px;padding:0 6px 0 0;justify-content:flex-end;background:color-mix(in srgb,var(--n1) 92%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
  .topbar .breadcrumb,.topbar #snapshot-label,.topbar .snapshot-dot,.topbar .settings-button{display:none}
  .topbar .icon-button{width:40px;height:40px}

  /* bottom tab bar: 4 destinations + More */
  .sidebar nav{position:fixed;left:0;right:0;bottom:0;z-index:60;display:flex;overflow:visible;justify-content:stretch;margin:0;gap:0;padding:4px 6px calc(4px + env(safe-area-inset-bottom));background:var(--n0);border-top:1px solid var(--line)}
  .sidebar nav>a,.sidebar nav>.nav-more{flex:1 1 0;min-width:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;height:52px;padding:0;border:0;border-radius:10px;background:none;color:var(--n7);font:inherit}
  .sidebar nav>a>.nav-label,.sidebar nav>.nav-more .nav-label{font-size:var(--text-xs);font-weight:var(--weight-medium);line-height:1}
  .sidebar nav>a.active,.sidebar nav>.nav-more.active,.sidebar nav>.nav-more.current{color:var(--ink);background:var(--n3)}
  .sidebar nav>a.active .ico{stroke-width:2.1}
  .nav-more{display:flex}
  .more-sheet{position:absolute;left:8px;right:8px;bottom:calc(100% + 8px);display:grid;grid-template-columns:1fr 1fr;gap:4px;padding:8px;background:var(--n0);border:1px solid var(--line);border-radius:14px;box-shadow:0 12px 40px color-mix(in srgb,var(--shadow-base) 28%,transparent)}
  .more-sheet[hidden]{display:none}
  .more-sheet a{display:flex!important;flex-direction:row!important;align-items:center;gap:10px;height:46px!important;padding:0 12px!important;border-radius:10px;font-size:var(--text-sm);color:var(--ink)!important}
  .more-sheet a .nav-label{display:block!important;font-size:var(--text-sm)!important;white-space:nowrap}
  .more-sheet a.active{background:var(--n3)}

  /* tighter vertical rhythm: content first */
  main{padding:10px 12px calc(72px + env(safe-area-inset-bottom));min-height:0}
  .page-intro{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:4px 8px;align-items:start;margin-bottom:10px}
  .page-intro>div:first-child{display:contents}
  .page-intro .eyebrow{display:none}
  /* the main task keeps a visible label */
  .page-intro .icon-btn.cta{grid-column:1/-1;grid-row:3;width:100%;height:44px;justify-content:center;display:inline-flex;gap:8px;margin-top:6px}
  .sidebar nav>a>.nav-label,.sidebar nav>.nav-more .nav-label{display:block!important}
  .page-intro h1{font-size:var(--text-2xl);line-height:1.15;margin:0;grid-column:1;grid-row:1;align-self:center}
  .page-intro p{grid-column:1/-1;margin:2px 0 0;font-size:var(--text-sm);line-height:1.4}
  .page-intro>.button,.page-intro .intro-controls,.page-intro>div:last-child:not(:first-child){grid-column:2;grid-row:1;display:flex;gap:6px;margin:0;flex-wrap:nowrap}
  .grid,.stats-grid{gap:8px;margin-bottom:8px}
  .card{padding:12px;border-radius:12px}
  .card-header{margin-bottom:8px}
  .hero{padding:12px;margin-bottom:8px;min-height:0;gap:8px;grid-template-columns:1fr}
  .hero>div:first-child p,.hero>div:first-child .button,.hero .eyebrow{display:none}
  .hero h2{font-size:var(--text-lg);margin:0}
  .hero .chart{height:96px}
  .stat{padding:10px}.stat-value{font-size:var(--text-2xl);margin-top:2px}.stat-note{margin-top:2px}
  .chart-foot{margin-top:6px}
  .filter-collapse{margin-bottom:8px}
  .filters{padding:8px;gap:8px;margin-bottom:8px}
  dialog{width:calc(100% - 16px);padding:16px}
  .school-directory{gap:8px;margin-top:10px}
  .school-tile{padding:12px}
  .school-tile p{margin-top:2px}
  .school-tile .tile-values{margin-top:8px;font-size:var(--text-lg);gap:18px}
  .school-tile .badge-row,.school-tile>div:last-child:not(.tile-values){margin-top:8px}
  .directory-toolbar{margin-top:8px;gap:8px}
}
.school-avatar{flex:none}
.school-actions{margin-left:auto;display:flex;gap:6px;flex:none}
.school-info>div:nth-child(2){min-width:0}
.school-info h2{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.page-intro.intro-collapsed{display:none}
.filter-right:empty{display:none}
@media(max-width:760px){
  .school-info{gap:10px;margin-bottom:10px}
  .school-info p{display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;font-size:var(--text-xs)}
  .school-avatar{width:36px;height:36px;font-size:var(--text-lg)}
  .filters{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:8px;align-items:end}
  .filters .field label{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
  .filters .field,.filters .field.wide{min-width:0;width:auto}
  .filters .field select,.filters .field input{width:100%}
  .filters .field select{padding:9px 28px 9px 10px;font-size:var(--text-sm)}
  .stats-grid.school-summary-stats .stat-note,.stats-grid .stat-note{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
  .stat .stat-label{font-size:var(--text-xs)}
}
@media(max-width:760px){
  .filters{grid-template-columns:minmax(0,1fr) auto}
  .filters:has(.field:nth-of-type(2)){grid-template-columns:minmax(0,1.4fr) minmax(0,1fr)}
  .filters .filter-right{grid-column:auto;margin:0;gap:6px}
  .compare-cards{gap:8px;margin-bottom:10px}
  .compare-card{padding:10px 12px;border-radius:12px}
  .compare-card label{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
  .compare-card .compare-value{margin-top:0}
  .compare-card p{margin-top:6px;font-size:var(--text-xs)}
  .comparison-note{padding:10px 12px;margin-bottom:10px;font-size:var(--text-xs);line-height:1.5}
}

/* Retain all destinations on desktop; the More sheet is a mobile presentation. */
@media(min-width:761px){.more-sheet,.more-sheet[hidden]{display:contents}.sidebar nav>.nav-more{display:none}}
.header-feedback{flex:none;font-size:var(--text-sm)}
@media(max-width:760px){
 .brand{max-width:calc(100% - 166px);padding:0 10px;gap:7px;font-size:var(--text-base)}
 .brand>span{min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
 .top-actions{flex:none}
 .top-actions .header-feedback{width:auto;height:34px;padding:0 10px;border:1px solid var(--line);background:var(--paper);border-radius:7px}
}
/* Base navigation reserves 20px for glyph spans; text labels need their natural width. */
.sidebar nav a>.nav-label{width:auto;min-width:0}
@media(max-width:360px){.brand{font-size:var(--text-sm)}}

/* ---- Use your own AI: two jobs side by side, everything else in one accordion ---- */
.ai-status{display:flex;align-items:center;gap:8px;margin:0 0 12px;font-size:var(--text-sm);color:var(--n8)}
.ai-status strong{color:var(--ink);font-weight:600}
.ai-status .snapshot-dot{flex:none;margin-top:7px}.ai-status{align-items:flex-start}
.ai-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:12px;margin-bottom:12px;align-items:start}
.ai-grid .card-header{margin-bottom:12px}
.ai-grid .card-header p{font-size:var(--text-sm);margin-top:2px}
.ai-pick{display:flex;gap:8px;align-items:center}
.ai-pick select,.ai-url input{height:40px;min-width:0;border:1px solid var(--line);border-radius:10px;background:var(--n0);color:var(--ink);padding:0 12px;font:inherit;font-size:var(--text-sm)}
.ai-pick select{flex:1}
.ai-pick .button{height:40px;flex:none}
#ai-file-info{margin:8px 0 12px}
.ai-prompt{border:1px solid var(--line);border-radius:12px;background:var(--n2);padding:10px}
.ai-prompt-head{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:8px}
.ai-prompt-head label{font-size:var(--text-sm);font-weight:600}
.ai-links{display:flex;gap:6px;align-items:center;flex-wrap:wrap}
.ai-prompt textarea{display:block;width:100%;resize:vertical;min-height:84px;max-height:240px;border:0;background:transparent;color:var(--n8);font:var(--text-xs)/1.5 var(--font-mono);padding:0}
.ai-label{display:block;margin:0 0 6px;font-size:var(--text-sm);font-weight:600}
.ai-url{display:flex;gap:6px}
.ai-url input{flex:1;font-family:var(--font-mono);font-size:var(--text-xs)}
.ai-connect .subtle-note,.ai-download .subtle-note{margin-top:8px}
.ai-providers{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:12px;align-items:start}
.ai-providers>div>.button{width:100%;height:40px}
.ai-providers details{margin-top:6px;font-size:var(--text-sm)}
.ai-providers summary{cursor:pointer;color:var(--n8);padding:6px 2px}
.ai-providers details[open]{grid-column:1/-1}
.ai-providers details ol{padding-left:18px;margin:6px 0}
.ai-providers details p,.ai-providers details li{font-size:var(--text-xs);line-height:1.5}
.ai-more{padding:0;overflow:hidden}
.ai-more details{border-top:1px solid var(--line)}
.ai-more details:first-child{border-top:0}
.ai-more>details>summary{display:flex;align-items:baseline;gap:10px;padding:14px 16px;cursor:pointer;list-style:none;font-weight:600;font-size:var(--text-base)}
.ai-more>details>summary::-webkit-details-marker{display:none}
.ai-more>details>summary small{flex:1;color:var(--n7);font-weight:400;font-size:var(--text-sm)}
.ai-more>details>summary::after{content:'';width:8px;height:8px;border-right:2px solid var(--n7);border-bottom:2px solid var(--n7);transform:rotate(45deg);transition:transform .15s;margin-left:auto;align-self:center;order:3}
.ai-more>details[open]>summary::after{transform:rotate(-135deg)}
.ai-more .prose{padding:0 16px 16px}
.ai-more .prose p,.ai-more .prose li{font-size:var(--text-sm)}
.ai-more details details{margin-top:10px;border-top:1px dashed var(--line);padding-top:8px}
.ai-code{display:block;flex:1;min-width:0;padding:8px 10px;border-radius:8px;background:var(--n2);font:var(--text-xs)/1.5 var(--font-mono);overflow-wrap:anywhere}
@media(max-width:900px){.ai-grid{grid-template-columns:1fr}}
@media(max-width:760px){
  .ai-status{font-size:var(--text-xs);margin-bottom:8px;align-items:flex-start}
  .ai-pick{flex-wrap:wrap}.ai-pick select{flex:1 1 100%}.ai-pick .button.primary{flex:1}
  .ai-providers{grid-template-columns:1fr 1fr}
  .ai-more>details>summary{padding:12px}
  .ai-more>details>summary small{display:none}
  .ai-more .prose{padding:0 12px 12px}
}
/* The header hides its snapshot text on phones; the AI page keeps its own status visible. */
.ai-status .snapshot-dot+span{display:block;min-width:0}
.ai-grid .ai-download{margin:0}

/* Final copy pass: concise comparison selectors and optional details. */
.compare-card{display:flex;align-items:end;justify-content:space-between;gap:12px}.compare-card>div{flex:1;min-width:0}.compare-card .text-link{flex:none}.ai-connection-details,.guide-research{margin-bottom:20px}.all-school-weather>summary,.ai-connection-details>summary{cursor:pointer;font-weight:var(--weight-semibold)}

/* Keep the dictionary visible beside the CSV download on every screen size. */
.ai-pick{flex-wrap:wrap}.ai-pick select{flex:1 1 100%;width:100%}
.ai-download-actions{display:flex;flex-wrap:wrap;align-items:center;gap:8px;width:100%;min-width:0}
.ai-download-actions .button{padding:0 10px;white-space:nowrap}
.ai-download-actions #ai-download,.ai-download-actions #ai-dictionary{flex:1 1 auto}
.ai-download-actions #ai-compressed{flex:none}

.ai-name{margin-bottom:12px}.ai-name input{font-family:var(--font-sans);font-size:var(--text-sm)}

/* ---- Mobile audit follow-ups ---- */
#room-detail{scroll-margin-top:64px}
main[data-page=insights] .reference-comparison{display:none}
.stat-def{display:none;margin:0 0 8px;font-size:var(--text-xs);color:var(--n7)}
@media(max-width:760px){
  .stat-def{display:block}
  .stats-grid .stat .stat-note.is-definition{display:none!important}
  .subtle-note.is-help{display:none}
  .filter-bar .filter-sum{white-space:normal;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;line-height:1.35;padding:6px 0}
  .filter-collapse .filter-bar{min-height:44px;height:auto}
  .guide-hero{padding:14px 16px;border-radius:12px}
  .guide-hero h2{font-size:var(--text-lg);line-height:1.3;margin:4px 0 8px}
  .guide-hero .eyebrow{margin-bottom:0}
  .guide-hero-key{gap:4px 14px;font-size:var(--text-xs)}
  .ins-legend{margin:0 0 4px}
}
.ai-status .snapshot-dot+span{display:block!important}

/* ---- Select: custom chevron with real right-hand breathing room, themed ---- */
select:not([multiple]){-webkit-appearance:none;appearance:none;background-color:var(--n0);background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235a5e58' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;background-size:16px 16px;padding-right:42px!important;text-overflow:ellipsis;cursor:pointer}
:root[data-theme=dark] select:not([multiple]){background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23a9bcc4' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E")}
@media(prefers-color-scheme:dark){:root:not([data-theme=light]) select:not([multiple]){background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23a9bcc4' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E")}}
select:not([multiple]):disabled{opacity:.55;cursor:not-allowed}
select:not([multiple]):focus-visible{outline:2px solid var(--accent);outline-offset:2px}
@media(max-width:760px){select:not([multiple]){background-position:right 12px center;padding-right:38px!important}}

/* ---- School page structure: sticky section nav, sections, rooms table ---- */
.school-title-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.school-pick{margin:0;min-width:0}.school-pick select{height:36px;min-width:190px;max-width:260px;font-size:var(--text-sm);border:1px solid var(--line);border-radius:10px;background-color:var(--n0);color:var(--ink);padding:0 12px}
@media(min-width:761px){.filters:has(#mobile-room){display:none}}
.school-subnav{position:sticky;top:0;z-index:30;display:flex;gap:4px;margin:0 0 12px;padding:6px;background:color-mix(in srgb,var(--n1) 94%,transparent);backdrop-filter:blur(10px);border:1px solid var(--line);border-radius:12px;overflow-x:auto;scrollbar-width:none}
.school-subnav::-webkit-scrollbar{display:none}
.school-subnav a{flex:none;padding:8px 14px;border-radius:8px;font-size:var(--text-sm);font-weight:500;color:var(--n8);white-space:nowrap}
.school-subnav a:hover{background:var(--n3);color:var(--ink)}
.school-subnav a.active{background:var(--ink);color:var(--n0)}
.school-subnav a:focus-visible{outline:2px solid var(--accent);outline-offset:1px}
.ss-section{margin-top:22px}
.ss-h{font-size:var(--text-lg);font-weight:600;letter-spacing:var(--track-tight);margin:0 0 10px}
.ss-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px}
.ss-head .ss-h{margin:0}
.ss-count{display:inline-block;margin-left:6px;padding:1px 8px;border-radius:999px;background:var(--n3);color:var(--n8);font-size:var(--text-xs);font-weight:500;vertical-align:2px}
#room-table-search{height:36px;width:240px;max-width:100%;border:1px solid var(--line);border-radius:10px;padding:0 12px;background:var(--n0);color:var(--ink);font:inherit;font-size:var(--text-sm)}
.ss-table{max-height:440px;overflow:auto;border:1px solid var(--line);border-radius:12px;background:var(--n0)}
.ss-table table{font-size:var(--text-sm)}
.ss-table th{position:sticky;top:0;background:var(--n2);padding:0}
.ss-table td{padding:10px 12px}
.sort-btn{display:flex;align-items:center;gap:6px;width:100%;padding:10px 12px;background:none;border:0;font:inherit;font-size:var(--text-xs);font-weight:600;color:var(--n8);cursor:pointer;text-align:left;white-space:nowrap}
.sort-btn:hover{color:var(--ink)}
.sort-ind{width:0;height:0;border-left:4px solid transparent;border-right:4px solid transparent;opacity:0}
th[aria-sort=ascending] .sort-ind{border-bottom:5px solid currentColor;opacity:1}
th[aria-sort=descending] .sort-ind{border-top:5px solid currentColor;opacity:1}
.rt-sensor{color:var(--n7);font-size:var(--text-xs);margin-left:4px}
.ss-table tbody tr:hover{background:var(--n2)}
.ss-table td a{font-weight:500}
.ss-learn,.ss-room-detail{border:1px solid var(--line);border-radius:12px;background:var(--n0)}
.ss-learn>summary,.ss-room-detail>summary{display:flex;align-items:baseline;gap:10px;padding:14px 16px;cursor:pointer;font-weight:600;list-style:none}
.ss-learn>summary::-webkit-details-marker,.ss-room-detail>summary::-webkit-details-marker{display:none}
.ss-learn>summary::after,.ss-room-detail>summary::after{content:'';margin-left:auto;align-self:center;width:8px;height:8px;border-right:2px solid var(--n7);border-bottom:2px solid var(--n7);transform:rotate(45deg);transition:transform .15s}
.ss-learn[open]>summary::after,.ss-room-detail[open]>summary::after{transform:rotate(-135deg)}
.ss-room-detail>summary small{color:var(--n7);font-weight:400;font-size:var(--text-sm)}
.ss-learn-body{padding:0 16px 16px}.ss-learn-body p{font-size:var(--text-sm);margin:8px 0}
.ss-room-detail>.room-layout{padding:0 12px 12px;grid-template-columns:1fr}
.ss-room-detail .room-list-panel{display:none}
@media(max-width:760px){
  .school-subnav{top:48px;margin:0 -12px 10px;border-radius:0;border-left:0;border-right:0;padding:6px 8px}
  .school-subnav a{padding:8px 12px}
  .ss-section{margin-top:16px}
  .ss-head{flex-wrap:wrap}#room-table-search{width:100%}
  .ss-table{max-height:380px}
  .col-n{display:none}
  .ss-table td,.sort-btn{padding:10px 8px}
  .ss-room-detail>.room-layout{padding:0 8px 8px}
}
.school-group-filters{padding:0!important;border:0!important;background:none!important;box-shadow:none!important;margin:0 0 10px!important;display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.school-group-filters .field{flex-direction:row;align-items:center;gap:8px}
.school-group-filters .field label{margin:0;white-space:nowrap}
.school-group-filters select{height:36px}
.room-detail{scroll-margin-top:72px}
.ss-learn{margin-top:14px}
@media(max-width:760px){.room-detail{scroll-margin-top:120px}}