/* SEG_MOBILE_R2 — UX étudiante mobile-first, additive */
.seg-r2-filter-toggle,.seg-r2-bottom-nav,.seg-r2-lesson-bar,.seg-r2-collapse-toggle{display:none}
@media(max-width:760px){
  body.seg-r2-has-bottom-nav{padding-bottom:76px!important}
  .seg-r2-bottom-nav{position:fixed;display:grid;grid-template-columns:repeat(5,1fr);left:0;right:0;bottom:0;z-index:10000;background:#fff;border-top:1px solid #cfdbe7;padding:5px max(5px,env(safe-area-inset-left)) calc(5px + env(safe-area-inset-bottom));box-shadow:0 -6px 22px rgba(8,50,90,.12)}
  .seg-r2-bottom-nav a{display:flex;min-width:0;min-height:54px;flex-direction:column;align-items:center;justify-content:center;gap:2px;padding:4px 2px;text-decoration:none;color:#31516d;font-size:.66rem;font-weight:700;line-height:1.1;text-align:center;border-radius:9px}
  .seg-r2-bottom-nav a span:first-child{font-size:1.08rem;line-height:1}
  .seg-r2-bottom-nav a[aria-current="page"]{background:#eaf3fb;color:#07579a}
  .resource-library-controls{position:relative}
  .seg-r2-filter-toggle{display:flex;width:100%;align-items:center;justify-content:space-between;min-height:46px;margin:10px 0;padding:10px 13px;border:1px solid #b7cadc;border-radius:11px;background:#fff;color:#0a4b86;font-weight:800}
  .resource-library-controls .resource-filter-grid,.resource-library-controls .resource-library-actions{display:none!important}
  .resource-library-controls[data-seg-r2-filters="open"] .resource-filter-grid{display:grid!important;grid-template-columns:1fr!important}
  .resource-library-controls[data-seg-r2-filters="open"] .resource-library-actions{display:flex!important;flex-direction:column!important;align-items:stretch!important;gap:10px!important}
  .resource-library-controls[data-seg-r2-filters="open"] .resource-filter-bar{display:grid!important;grid-template-columns:1fr 1fr!important;gap:7px!important}
  .resource-library-controls[data-seg-r2-filters="open"] .resource-filter-bar button,.resource-library-controls[data-seg-r2-filters="open"] #resourceReset{width:100%!important;min-height:44px!important}
  .resource-library-card{padding:14px!important}
  .resource-library-card .resource-objective{margin:.65rem 0!important}
  .resource-card-context{display:none!important}
  .resource-card-actions{display:grid!important;grid-template-columns:1fr!important;gap:8px!important}
  .resource-card-actions a,.resource-card-actions button{width:100%!important;min-height:44px!important;justify-content:center!important}
  .diagnostic-main .diag-q{padding:14px!important;margin:0 0 12px!important}
  .diagnostic-main .diag-q h3{font-size:1rem!important;line-height:1.35!important}
  .diagnostic-main .diag-q label{display:flex!important;align-items:flex-start!important;gap:9px!important;min-height:48px!important;padding:11px!important;margin:7px 0!important;border:1px solid #d8e2ec!important;border-radius:11px!important;background:#fff!important}
  .diagnostic-main .diag-q input{flex:0 0 auto;margin-top:3px!important}
  .diagnostic-main .diag-page-meta{position:sticky;top:58px;z-index:20;margin:0 0 12px!important}
  .diagnostic-main .diag-pagination{position:sticky;bottom:0;z-index:30;background:rgba(255,255,255,.97);padding:9px 0 calc(9px + env(safe-area-inset-bottom));margin:12px 0 0!important;border-top:1px solid #e3e9ef}
  .diagnostic-main .diag-pagination button{flex:1!important}
  .diagnostic-actions{display:grid!important;grid-template-columns:1fr!important;gap:8px!important}
  .diagnostic-actions>*{width:100%!important}
  .ecue-page .ecue-top{padding:9px 12px!important}
  .ecue-page .ecue-top nav{display:none!important}
  .ecue-page .ecue-hero{grid-template-columns:1fr!important;gap:12px!important;padding:16px!important}
  .ecue-page .ecue-hero h1{font-size:1.55rem!important;margin:.25rem 0!important}
  .ecue-page .ecue-hero-stats{grid-template-columns:1fr 1fr!important;gap:8px!important}
  .ecue-page .ecue-hero-stats .ecue-primary{grid-column:1/-1!important;width:100%!important;min-height:48px!important;justify-content:center!important}
  .ecue-page .ecue-tabs{display:flex!important;overflow-x:auto!important;gap:6px!important;padding:8px 10px!important;scrollbar-width:none}
  .ecue-page .ecue-tabs::-webkit-scrollbar{display:none}
  .ecue-page .ecue-tabs button{flex:0 0 auto!important;min-height:42px!important;padding:8px 12px!important;white-space:nowrap!important}
  .ecue-page .ecue-grid{grid-template-columns:1fr!important}
  .ecue-page .ecue-content{padding:10px!important}
  .ecue-page .ecue-card{padding:14px!important}
  .lesson-shell{padding-bottom:78px!important}
  .lesson-layout{grid-template-columns:1fr!important}
  .lesson-side{order:-1!important}
  .seg-r2-lesson-bar{position:fixed;display:grid;grid-template-columns:1fr 1fr 1fr;left:0;right:0;bottom:0;z-index:10000;background:#fff;border-top:1px solid #cad7e3;padding:7px 8px calc(7px + env(safe-area-inset-bottom));box-shadow:0 -5px 18px rgba(20,47,72,.12)}
  .seg-r2-lesson-bar button{min-width:0;min-height:48px;border:0;border-radius:10px;background:#eef4f9;color:#164d78;font-weight:800;font-size:.76rem;padding:7px}
  .seg-r2-lesson-bar button:nth-child(2){background:#0b5fa8;color:#fff}
  .p12-top{height:auto!important;min-height:62px!important;padding:8px 12px!important}
  .p12-top .p12-search{display:none!important}
  .p12-top .p12-user span{display:none!important}
  .p12-layout{display:block!important}
  .p12-side{display:none!important}
  .p12-main{padding:12px!important}
  .p12-head{margin-bottom:10px!important}
  .p12-head p,.p12-head time{display:none!important}
  .p12-head h1{font-size:1.45rem!important;margin:0!important}
  .p12-kpis{grid-template-columns:1fr 1fr!important;gap:8px!important;margin-bottom:10px!important}
  .p12-kpis article{padding:10px!important;min-height:72px!important}
  .p12-grid{grid-template-columns:1fr!important;gap:10px!important}
  .p12-column{gap:10px!important}
  .p12-card{padding:13px!important}
  .p12-resume{order:-10!important;border:1px solid #b6d3eb!important;box-shadow:0 6px 18px rgba(20,76,122,.08)!important}
  .p12-resume .resume-body{align-items:flex-start!important}
  .p12-resume #p12ResumeCta{display:flex!important;width:100%!important;min-height:46px!important;align-items:center!important;justify-content:center!important;margin-top:8px!important}
  .p12-ecue{grid-template-columns:1fr!important;gap:8px!important}
  .p12-ecue>a{width:100%!important;min-height:44px!important;display:flex!important;align-items:center!important;justify-content:center!important}
  .p12-column.sidecol .p12-card.seg-r2-collapsible> :not(header){max-height:0!important;overflow:hidden!important;opacity:0!important;pointer-events:none!important;margin-top:0!important;margin-bottom:0!important}
  .p12-column.sidecol .p12-card.seg-r2-collapsible[data-seg-r2-expanded="true"]> :not(header){max-height:2000px!important;overflow:visible!important;opacity:1!important;pointer-events:auto!important}
  .seg-r2-collapse-toggle{display:inline-grid!important;place-items:center;min-width:38px;min-height:38px;border:1px solid #cad7e3;border-radius:9px;background:#fff;color:#0a4b86;font-weight:900}
}