/* Bibliothèque de composants 2.12 (préfixe ux-). Mobile d'abord ; seuils 430 / 768 / 1024. Couleurs uniquement par jetons. */
.ux-hidden{display:none!important}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ---------- AppShell ---------- */
.app-shell{min-height:100vh;display:flex;flex-direction:column;padding-bottom:var(--pki-nav-size)}
.app-shell>main{flex:1}
.topbar{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.96);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.topbar-inner{max-width:1260px;margin:auto;padding:10px 16px;display:flex;align-items:center;gap:10px;min-height:60px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:800;letter-spacing:-.01em;min-width:0}
.brand-mark{width:38px;height:38px;border-radius:var(--r-md);background:linear-gradient(135deg,var(--navy),var(--teal));display:grid;place-items:center;color:#fff;flex-shrink:0}
.brand-mark svg{width:21px;height:21px}
.brand .name{display:grid;min-width:0}.brand .name>span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.brand small{display:block;font-size:var(--fs-12);color:var(--muted);font-weight:600;letter-spacing:.02em}
.ux-context{display:none;align-items:center;gap:8px;padding:6px 10px;border-radius:var(--r-pill);background:var(--navy-50);color:var(--ink-2);font-size:var(--fs-13);font-weight:600;min-width:0;max-width:40vw}
.ux-context>span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.top-actions{margin-left:auto;display:flex;align-items:center;gap:8px}
.user-chip{display:flex;align-items:center;gap:8px;padding:6px 10px;border-radius:var(--r-pill);background:var(--navy-50);color:var(--ink-2);font-size:var(--fs-13)}
.user-chip strong{font-size:var(--fs-13)}
.pki-menu-toggle,.ux-nav-toggle{display:none;flex:0 0 44px;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-md);background:var(--paper);color:var(--ink);align-items:center;justify-content:center}
.pki-menu-toggle svg,.ux-nav-toggle svg{width:22px;height:22px}
.ux-search-button{flex:0 0 44px;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-md);background:var(--paper);color:var(--ink);display:inline-flex;align-items:center;justify-content:center}
.ux-search-button svg{width:20px;height:20px}
@media(max-width:767px){
  .pki-menu-toggle{display:inline-flex}
  .top-actions{display:none;position:absolute;right:12px;top:calc(100% + 6px);flex-direction:column;align-items:stretch;gap:6px;padding:10px;background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-2);min-width:220px;z-index:40}
  .top-actions.is-open{display:flex}
  .brand small{display:none}
}
@media(min-width:768px){.ux-context{display:inline-flex}}
.ux-offline{display:none;align-items:center;gap:10px;padding:8px 16px;background:var(--warning-50);color:var(--warning-600);border-bottom:1px solid var(--warning-100);font-size:var(--fs-14);font-weight:600}
.ux-offline svg{width:18px;height:18px;flex-shrink:0}
body.is-offline .ux-offline{display:flex}

/* Navigation élève : barre d'onglets fixe en bas (mobile), sous l'en-tête (desktop) */
.ux-tabbar{display:flex;gap:2px;background:var(--paper);border-top:1px solid var(--line);position:fixed;left:0;right:0;bottom:0;z-index:35;padding:6px 8px calc(6px + env(safe-area-inset-bottom));justify-content:space-around}
.ux-tabbar a{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;min-height:52px;padding:6px 4px;border-radius:var(--r-md);text-decoration:none;color:var(--muted);font-size:var(--fs-12);font-weight:700;letter-spacing:.02em;text-transform:uppercase}
.ux-tabbar a svg{width:22px;height:22px}
.ux-tabbar a[aria-current="page"]{color:var(--teal-600);background:var(--teal-50)}
@media(min-width:768px){
  .ux-tabbar{position:static;border-top:0;border-bottom:1px solid var(--line);justify-content:flex-start;padding:6px 16px;gap:6px}
  .ux-tabbar-inner{max-width:1260px;margin:auto;width:100%;display:flex;gap:6px}
  .ux-tabbar a{flex:0 0 auto;flex-direction:row;min-height:44px;padding:8px 14px;text-transform:none;font-size:var(--fs-14);letter-spacing:0}
}

/* Navigation enseignant : barre latérale ≥ 1024, tiroir en dessous */
.ux-layout{display:flex;flex:1;width:100%;max-width:1400px;margin:auto}
.ux-sidebar{display:none;flex:0 0 240px;border-right:1px solid var(--line);background:var(--paper);padding:16px 12px;gap:4px;flex-direction:column;position:sticky;top:var(--pki-header-size,60px);align-self:flex-start;max-height:calc(100vh - var(--pki-header-size,60px));overflow:auto}
.ux-sidebar a{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:var(--r-md);text-decoration:none;color:var(--ink-2);font-weight:600;font-size:var(--fs-14);min-height:44px}
.ux-sidebar a svg{width:20px;height:20px;color:var(--muted)}
.ux-sidebar a[aria-current="page"]{background:var(--navy);color:#fff}.ux-sidebar a[aria-current="page"] svg{color:#fff}
.ux-sidebar .ux-sidebar-group{margin:12px 12px 4px;font-size:var(--fs-12);font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.ux-layout>main{flex:1;min-width:0}
@media(min-width:1024px){.ux-sidebar{display:flex}.ux-nav-toggle{display:none!important}}
@media(max-width:1023px){.ux-nav-toggle.is-teacher{display:inline-flex}}
.ux-drawer-nav{display:flex;flex-direction:column;gap:4px}
.ux-drawer-nav a{display:flex;align-items:center;gap:10px;padding:12px;border-radius:var(--r-md);text-decoration:none;color:var(--ink);font-weight:600;min-height:48px}
.ux-drawer-nav a svg{width:20px;height:20px;color:var(--muted)}
.ux-drawer-nav a[aria-current="page"]{background:var(--navy);color:#fff}.ux-drawer-nav a[aria-current="page"] svg{color:#fff}

.container{max-width:1260px;margin:auto;padding:20px 16px 72px}
@media(min-width:768px){.container{padding:28px 24px 80px}}
.pki-footer{font-size:var(--fs-12)}

/* ---------- PageHeader ---------- */
.ux-page-header{display:grid;gap:12px;margin:0 0 20px}
.ux-page-header .ux-kicker{margin:0;font-size:var(--fs-12);font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--teal)}
.ux-page-header h1{margin:0;font-size:clamp(24px,4.5vw,32px);line-height:1.15;letter-spacing:-.02em}
.ux-page-header .ux-subtitle{margin:2px 0 0;color:var(--muted);font-size:var(--fs-14)}
.ux-page-header .ux-header-actions{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.ux-page-header .ux-header-main{display:flex;gap:10px;align-items:flex-start;flex-wrap:wrap}
.ux-page-header .ux-header-main>div{flex:1;min-width:0}
@media(min-width:768px){.ux-page-header{grid-template-columns:minmax(320px,1fr) auto;align-items:end}.ux-page-header .ux-header-actions{justify-content:flex-end;max-width:min(60%,720px)}}
@media(max-width:430px){.ux-page-header .ux-header-actions .btn:not(.icon){width:auto;flex:1 1 calc(50% - 8px)}.ux-page-header .ux-header-actions .btn.primary,.ux-page-header .ux-header-actions .btn.teal{flex-basis:100%}}
.ux-breadcrumb{display:flex;flex-wrap:wrap;gap:6px;align-items:center;font-size:var(--fs-13);color:var(--muted);margin:0 0 6px}
.ux-breadcrumb a{color:var(--muted);text-decoration:none;font-weight:600}.ux-breadcrumb a:hover{color:var(--teal)}
.ux-breadcrumb span[aria-hidden]{opacity:.6}

/* ---------- Section ---------- */
.ux-section{margin:0 0 24px}
.ux-section>.ux-section-head{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap;margin:0 0 10px}
.ux-section>.ux-section-head h2{margin:0;font-size:var(--fs-20);letter-spacing:-.01em}
.ux-section>.ux-section-head p{margin:0;color:var(--muted);font-size:var(--fs-14);flex-basis:100%}
.ux-section>.ux-section-head .ux-section-side{margin-left:auto}
details.ux-section>summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:10px;min-height:44px;font-weight:700;font-size:var(--fs-18)}
details.ux-section>summary::-webkit-details-marker{display:none}
details.ux-section>summary::before{content:"";width:9px;height:9px;border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);transform:rotate(-45deg);transition:transform var(--motion-fast)}
details.ux-section[open]>summary::before{transform:rotate(45deg)}

/* ---------- Card / Stat / Status ---------- */
.ux-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);padding:16px;box-shadow:var(--shadow-1);min-width:0;overflow-wrap:anywhere}
.ux-card>h3,.ux-card>h2{margin:0 0 6px;font-size:var(--fs-18)}
.ux-card p{margin:0;color:var(--ink-2)}
.ux-card.is-hero{border-color:var(--teal-100);background:linear-gradient(180deg,var(--paper),var(--teal-50));padding:20px}
.ux-card.is-hero h2{font-size:clamp(20px,3.6vw,26px)}
.ux-card.is-flat{box-shadow:none}
.ux-card.is-muted{background:var(--navy-50);border-style:dashed;box-shadow:none}
.ux-card.is-danger{border-color:var(--danger-100)}
.ux-card-head{display:flex;gap:10px;align-items:flex-start;flex-wrap:wrap;margin:0 0 8px}.ux-card-head>div{flex:1;min-width:0}
.ux-card-foot{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:12px}
.ux-grid{display:grid;gap:12px;grid-template-columns:1fr}
@media(min-width:600px){.ux-grid.cols-2,.ux-grid.cols-3,.ux-grid.cols-4{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.ux-grid.cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}.ux-grid.cols-4{grid-template-columns:repeat(4,minmax(0,1fr))}}
.ux-stats{display:grid;gap:10px;grid-template-columns:repeat(2,minmax(0,1fr))}
@media(min-width:768px){.ux-stats{grid-template-columns:repeat(4,minmax(0,1fr))}}
.ux-stat{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-md);padding:12px 14px;display:grid;gap:2px;min-width:0}
.ux-stat b{font-size:var(--fs-24);line-height:1.1;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.ux-stat span{font-size:var(--fs-13);color:var(--muted)}
.ux-stat small{font-size:var(--fs-12);color:var(--ink-2)}
.ux-stat.is-empty b{color:var(--muted)}
.ux-stat[data-tone="success"] b{color:var(--success-600)}.ux-stat[data-tone="warning"] b{color:var(--warning-600)}.ux-stat[data-tone="danger"] b{color:var(--danger-600)}.ux-stat[data-tone="info"] b{color:var(--info-600)}
.ux-status{display:inline-flex;align-items:center;gap:6px;padding:3px 10px;border-radius:var(--r-pill);font-size:var(--fs-12);font-weight:700;letter-spacing:.01em;white-space:nowrap;border:1px solid transparent;line-height:1.5}
.ux-status::before{content:"";width:7px;height:7px;border-radius:50%;background:currentColor;flex-shrink:0}
.ux-status[data-tone="neutral"]{background:var(--navy-50);color:var(--ink-2);border-color:var(--navy-100)}
.ux-status[data-tone="info"]{background:var(--info-50);color:var(--info-600);border-color:var(--info-100)}
.ux-status[data-tone="success"]{background:var(--success-50);color:var(--success-600);border-color:var(--success-100)}
.ux-status[data-tone="warning"]{background:var(--warning-50);color:var(--warning-600);border-color:var(--warning-100)}
.ux-status[data-tone="danger"]{background:var(--danger-50);color:var(--danger-600);border-color:var(--danger-100)}
.ux-status[data-tone="live"]{background:var(--teal-50);color:var(--teal-600);border-color:var(--teal-100)}
.ux-status[data-tone="live"]::before{animation:ux-pulse 1.6s ease-in-out infinite}
@keyframes ux-pulse{0%,100%{opacity:1}50%{opacity:.35}}

/* ---------- Action / Menu ---------- */
.btn{min-height:44px;border-radius:var(--r-md);font-size:var(--fs-14);font-weight:700;padding:10px 14px;border:1px solid var(--line);background:var(--paper);color:var(--ink);display:inline-flex;align-items:center;justify-content:center;gap:8px;text-decoration:none;line-height:1.25}
.btn:hover{background:var(--navy-50)}
.btn.primary{background:var(--navy);color:#fff;border-color:var(--navy)}.btn.primary:hover{background:var(--navy-700)}
.btn.teal{background:var(--teal);color:#fff;border-color:var(--teal)}.btn.teal:hover{background:var(--teal-600)}
.btn.gold{background:var(--warning);color:#fff;border-color:var(--warning)}
.btn.danger{color:var(--danger-600);border-color:var(--danger-100);background:var(--danger-50)}
.btn.ghost{border-color:transparent;background:transparent}.btn.ghost:hover{background:var(--navy-50)}
.btn.small{min-height:44px;padding:6px 12px;font-size:var(--fs-13);border-radius:var(--r-sm)}
.btn.icon{width:44px;padding:0}.btn.icon.small{width:36px}
.btn svg{width:18px;height:18px}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.5;cursor:not-allowed}
.ux-menu{position:relative;display:inline-block}
.ux-menu>button{width:44px;height:44px;padding:0;font-size:var(--fs-20);line-height:1}
.ux-menu-list{position:absolute;right:0;top:calc(100% + 4px);min-width:220px;background:var(--paper);border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--shadow-2);padding:6px;display:none;z-index:45;flex-direction:column;gap:2px}
.ux-menu.is-open .ux-menu-list{display:flex}
.ux-menu-list button,.ux-menu-list a{display:flex;align-items:center;gap:10px;width:100%;text-align:left;min-height:44px;padding:10px 12px;border:0;background:none;border-radius:var(--r-sm);font:inherit;font-weight:600;color:var(--ink);text-decoration:none;cursor:pointer}
.ux-menu-list button:hover,.ux-menu-list a:hover{background:var(--navy-50)}
.ux-menu-list .is-danger{color:var(--danger-600)}
.ux-menu-list hr{border:0;border-top:1px solid var(--line);margin:4px 0}
.ux-actions{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
@media(max-width:430px){.ux-actions>.btn:not(.small):not(.icon){flex:1 1 auto}}

/* ---------- Progress ---------- */
.ux-progress{display:grid;gap:4px;min-width:0}
.ux-progress-track{height:8px;background:var(--navy-100);border-radius:var(--r-pill);overflow:hidden}
.ux-progress-track>span{display:block;height:100%;background:linear-gradient(90deg,var(--teal),var(--teal2));border-radius:var(--r-pill);transition:width var(--motion-base)}
.ux-progress-label{display:flex;justify-content:space-between;gap:8px;font-size:var(--fs-13);color:var(--muted)}
.ux-progress-label b{color:var(--ink);font-variant-numeric:tabular-nums}
.ux-ring{--size:56px;width:var(--size);height:var(--size);flex:0 0 auto;aspect-ratio:1;border-radius:50%;display:grid;place-items:center;background:conic-gradient(var(--teal) calc(var(--value)*1%),var(--navy-100) 0);font-size:var(--fs-13);font-weight:700}
.ux-ring>span{width:calc(var(--size) - 12px);height:calc(var(--size) - 12px);border-radius:50%;background:var(--paper);display:grid;place-items:center}

/* ---------- Tabs ---------- */
.ux-tabs{display:flex;gap:4px;padding:4px;background:var(--navy-50);border-radius:var(--r-md);overflow-x:auto;scrollbar-width:none;margin:0 0 16px}
.ux-tabs::-webkit-scrollbar{display:none}
.ux-tabs button{flex:0 0 auto;min-height:40px;padding:8px 14px;border:0;background:transparent;border-radius:var(--r-sm);font:inherit;font-weight:700;font-size:var(--fs-14);color:var(--ink-2);white-space:nowrap;display:inline-flex;align-items:center;gap:6px}
.ux-tabs button[aria-selected="true"]{background:var(--paper);color:var(--navy);box-shadow:var(--shadow-1)}
.ux-tabs button .ux-count{background:var(--navy-100);color:var(--ink-2);border-radius:var(--r-pill);padding:0 7px;font-size:var(--fs-12);min-width:20px;text-align:center}
.ux-tabs button[aria-selected="true"] .ux-count{background:var(--teal);color:#fff}
@media(min-width:768px){.ux-tabs{display:inline-flex}}

/* ---------- Timeline ---------- */
.ux-timeline{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.ux-timeline>li{display:grid;grid-template-columns:32px minmax(0,1fr);gap:10px;align-items:start;padding:10px 12px;border-radius:var(--r-md);background:var(--paper);border:1px solid var(--line);position:relative}
.ux-timeline>li[aria-current="step"]{border-color:var(--teal);box-shadow:inset 3px 0 0 var(--teal)}
.ux-timeline>li[data-state="done"]{background:var(--success-50);border-color:var(--success-100)}
.ux-timeline>li[data-state="locked"]{border-style:dashed;color:var(--muted)}
.ux-timeline>li[data-state="removed"]{opacity:.7;text-decoration:line-through}
.ux-timeline>li[data-state="removed"] small{text-decoration:none}
.ux-timeline-index{width:32px;height:32px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;background:var(--navy-50);font-weight:700;font-size:var(--fs-13)}
.ux-timeline>li[data-state="done"] .ux-timeline-index{background:var(--success);color:#fff}
.ux-timeline>li[data-state="doing"] .ux-timeline-index,.ux-timeline>li[aria-current="step"] .ux-timeline-index{background:var(--teal);color:#fff}
.ux-timeline-body{display:grid;gap:2px;min-width:0}
.ux-timeline-body strong{font-size:var(--fs-16)}
.ux-timeline-body small{color:var(--muted);font-size:var(--fs-13)}
.ux-timeline-body .ux-timeline-instruction{color:var(--teal-600);font-size:var(--fs-13)}
.ux-timeline-side{display:flex;gap:8px;align-items:center;flex-wrap:wrap;grid-column:2}
@media(min-width:600px){.ux-timeline>li{grid-template-columns:32px minmax(0,1fr) auto;align-items:center}.ux-timeline-side{grid-column:auto}}
.ux-timeline-index[data-icon="check"]::before{content:"✓"}
.ux-timeline.is-horizontal{display:flex;gap:6px;overflow-x:auto;padding:4px 0;scrollbar-width:thin}
.ux-timeline.is-horizontal>li{flex:0 0 auto;grid-template-columns:auto auto;padding:8px 12px;align-items:center}

/* ---------- StudentCard / ActivityCard ---------- */
.ux-student-card{display:grid;gap:8px;background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);padding:14px;min-width:0}
.ux-student-card .ux-student-head{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.ux-student-card .ux-avatar{width:36px;height:36px;border-radius:50%;background:var(--navy-50);color:var(--navy);display:grid;place-items:center;font-weight:800;font-size:var(--fs-13);flex-shrink:0}
.ux-student-card h3{margin:0;font-size:var(--fs-16);flex:1;min-width:0;overflow-wrap:anywhere}
.ux-student-card .ux-student-meta{color:var(--muted);font-size:var(--fs-13);margin:0}
.ux-student-card .ux-student-constats{margin:0;padding:0;list-style:none;display:flex;flex-wrap:wrap;gap:6px}
.ux-student-card[data-priority="high"]{border-color:var(--danger-100);box-shadow:inset 4px 0 0 var(--danger)}
.ux-student-card[data-priority="medium"]{border-color:var(--warning-100);box-shadow:inset 4px 0 0 var(--warning)}
.ux-activity-card{display:grid;gap:6px;background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);padding:14px;min-width:0}
.ux-activity-card .ux-activity-kind{font-size:var(--fs-12);font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--teal)}
.ux-activity-card h3{margin:0;font-size:var(--fs-16)}
.ux-activity-card p{margin:0;color:var(--muted);font-size:var(--fs-13)}
.ux-activity-card[aria-selected="true"]{border-color:var(--teal);box-shadow:inset 0 0 0 1px var(--teal)}

/* ---------- EmptyState / Feedback / Skeleton ---------- */
.ux-empty{display:grid;justify-items:center;text-align:center;gap:8px;padding:28px 16px;border:1px dashed var(--line-strong);border-radius:var(--r-lg);background:var(--paper);color:var(--ink-2)}
.ux-empty .ux-empty-icon{width:48px;height:48px;border-radius:var(--r-md);background:var(--navy-50);color:var(--navy);display:grid;place-items:center}
.ux-empty .ux-empty-icon svg{width:24px;height:24px}
.ux-empty h3{margin:0;font-size:var(--fs-18)}
.ux-empty p{margin:0;max-width:44ch;color:var(--muted)}
.ux-feedback{display:grid;grid-template-columns:auto minmax(0,1fr);gap:10px;padding:12px 14px;border-radius:var(--r-md);border:1px solid var(--line);background:var(--paper);font-size:var(--fs-14);margin:0 0 12px}
.ux-feedback svg{width:20px;height:20px;margin-top:1px}
.ux-feedback strong{display:block;margin:0 0 2px}
.ux-feedback p{margin:0}
.ux-feedback ul{margin:6px 0 0;padding-left:18px}
.ux-feedback[data-tone="info"]{background:var(--info-50);border-color:var(--info-100);color:var(--info-600)}
.ux-feedback[data-tone="success"]{background:var(--success-50);border-color:var(--success-100);color:var(--success-600)}
.ux-feedback[data-tone="warning"]{background:var(--warning-50);border-color:var(--warning-100);color:var(--warning-600)}
.ux-feedback[data-tone="danger"]{background:var(--danger-50);border-color:var(--danger-100);color:var(--danger-600)}
.ux-skeleton{display:grid;gap:10px;padding:16px;border:1px solid var(--line);border-radius:var(--r-lg);background:var(--paper)}
.ux-skeleton>span{display:block;height:14px;border-radius:var(--r-sm);background:linear-gradient(90deg,var(--navy-50) 25%,var(--navy-100) 50%,var(--navy-50) 75%);background-size:200% 100%;animation:ux-shimmer 1.4s linear infinite}
.ux-skeleton>span.is-title{height:22px;width:55%}.ux-skeleton>span.is-short{width:35%}.ux-skeleton>span.is-block{height:64px}
@keyframes ux-shimmer{to{background-position:-200% 0}}

/* ---------- Drawer / Modal / Toast ---------- */
.ux-drawer-backdrop{position:fixed;inset:0;background:rgba(19,42,68,.55);z-index:80;display:flex;justify-content:flex-end}
.ux-drawer{width:min(560px,100%);height:100%;background:var(--paper);display:flex;flex-direction:column;box-shadow:var(--shadow-2);animation:ux-slide var(--motion-base) ease-out}
.ux-drawer.is-wide{width:min(860px,100%)}
@keyframes ux-slide{from{transform:translateX(24px);opacity:.4}to{transform:none;opacity:1}}
.ux-drawer-head{display:flex;align-items:center;gap:10px;padding:14px 16px;border-bottom:1px solid var(--line);position:sticky;top:0;background:var(--paper)}
.ux-drawer-head h2{margin:0;font-size:var(--fs-18);flex:1;min-width:0}
.ux-drawer-body{padding:16px;overflow:auto;flex:1;-webkit-overflow-scrolling:touch}
.ux-drawer-foot{display:flex;flex-wrap:wrap;gap:8px;justify-content:flex-end;padding:12px 16px;border-top:1px solid var(--line);background:var(--paper)}
@media(max-width:767px){.ux-drawer,.ux-drawer.is-wide{width:100%}.ux-drawer-foot .btn{flex:1}}
.modal-backdrop{position:fixed;inset:0;background:rgba(19,42,68,.55);z-index:80;display:grid;place-items:center;padding:16px}
.modal{width:min(720px,100%);max-height:90vh;overflow:auto;background:var(--paper);border-radius:var(--r-lg);box-shadow:var(--shadow-2)}
.modal-head{padding:14px 16px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:10px;position:sticky;top:0;background:var(--paper);z-index:2}
.modal-head h3{font-size:var(--fs-18);margin:0}
.modal-body{padding:16px}
@media(max-width:767px){.modal-backdrop{padding:0;align-items:end}.modal{width:100%;max-height:100dvh;border-radius:var(--r-lg) var(--r-lg) 0 0}}
.toast{position:fixed;left:50%;transform:translateX(-50%);bottom:calc(var(--pki-nav-size) + 16px);z-index:100;background:var(--navy);color:#fff;padding:12px 16px;border-radius:var(--r-md);box-shadow:var(--shadow-2);font-size:var(--fs-14);max-width:min(420px,calc(100vw - 32px));display:flex;gap:10px;align-items:center}
.toast.bad{background:var(--danger-600)}.toast.good{background:var(--success-600)}.toast.warn{background:var(--warning-600)}

/* ---------- CommandBar ---------- */
.ux-command{width:min(640px,100%);align-self:start;margin-top:8vh;background:var(--paper);border-radius:var(--r-lg);box-shadow:var(--shadow-2);overflow:hidden}
.ux-command input{width:100%;border:0;border-bottom:1px solid var(--line);padding:14px 16px;font:inherit;font-size:var(--fs-16);outline:none}
.ux-command-list{list-style:none;margin:0;padding:6px;max-height:60vh;overflow:auto}
.ux-command-list li a{display:flex;gap:10px;align-items:center;padding:10px 12px;border-radius:var(--r-sm);text-decoration:none;color:var(--ink);min-height:44px}
.ux-command-list li a:hover,.ux-command-list li a:focus{background:var(--navy-50)}
.ux-command-list li a small{color:var(--muted);margin-left:auto;white-space:nowrap}
.ux-command-kind{font-size:var(--fs-12);font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--teal);min-width:64px}
.ux-command-empty{padding:16px;color:var(--muted);text-align:center}

/* ---------- SessionBar (barre de séance collante) ---------- */
.ux-session-bar{position:sticky;top:var(--pki-header-size,60px);z-index:25;display:flex;flex-wrap:wrap;align-items:center;gap:8px 12px;padding:10px 12px;margin:0 0 14px;border-radius:var(--r-md);background:var(--teal-50);border:1px solid var(--teal-100);min-width:0;overflow-wrap:anywhere}
.ux-session-bar .ux-session-back{font-weight:700;text-decoration:none;color:var(--teal-600);min-height:36px;display:inline-flex;align-items:center;gap:4px;white-space:nowrap;flex:0 0 auto}
.ux-session-bar .ux-session-pos{font-size:var(--fs-14);color:var(--ink-2);flex:1;min-width:0}
.ux-session-bar .ux-session-pos b{color:var(--ink)}
.ux-session-bar .btn{white-space:normal;text-align:left}
.ux-session-bar details{flex-basis:100%;font-size:var(--fs-14)}
.ux-session-bar details>summary{cursor:pointer;font-weight:700;min-height:36px;display:flex;align-items:center;color:var(--teal-600)}
.ux-session-bar .ux-session-note{flex-basis:100%;font-size:var(--fs-14)}
@media(max-width:600px){.ux-session-bar .btn:not(.small){width:100%}}

/* ---------- QuestionStepper ---------- */
.ux-stepper-bar{position:sticky;bottom:var(--pki-nav-size);z-index:24;display:flex;flex-wrap:wrap;align-items:center;gap:6px 8px;padding:8px 10px;margin:14px 0 0;border-radius:var(--r-md);background:var(--paper);border:1px solid var(--line);box-shadow:var(--shadow-1)}
.ux-stepper-bar .ux-progress{flex:1 1 140px}
.ux-stepper-bar .ux-stepper-nav{display:flex;gap:6px;align-items:center}
.ux-stepper-grid{display:flex;flex-wrap:wrap;gap:6px;flex:1 1 auto}
.ux-stepper-grid button{width:36px;height:36px;border-radius:var(--r-sm);border:1px solid var(--line);background:var(--paper);font:inherit;font-weight:700;font-size:var(--fs-13)}
.ux-stepper-grid button[data-state="done"]{background:var(--success-50);border-color:var(--success-100);color:var(--success-600)}
.ux-stepper-grid button[data-state="retry"]{background:var(--warning-50);border-color:var(--warning-100);color:var(--warning-600)}
.ux-stepper-grid button[data-state="filled"]{background:var(--info-50);border-color:var(--info-100);color:var(--info-600)}
.ux-stepper-grid button[aria-current="step"]{outline:2px solid var(--teal);outline-offset:1px}
[data-question-mode="focus"] .answer-card:not(.is-current){display:none}
.ux-stepper-mode{display:inline-flex;align-items:center;gap:6px;font-size:var(--fs-13);color:var(--muted);cursor:pointer;min-height:44px}
.ux-stepper-mode input{accent-color:var(--teal);width:18px;height:18px}
.answer-card.is-current{box-shadow:0 0 0 2px var(--teal-100)}

/* ---------- Divers ---------- */
.ux-kv{display:grid;grid-template-columns:auto minmax(0,1fr);gap:4px 12px;font-size:var(--fs-14);margin:0}
.ux-kv dt{color:var(--muted)}.ux-kv dd{margin:0;font-weight:600}
.ux-chips{display:flex;flex-wrap:wrap;gap:6px}
.ux-chip{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:var(--r-pill);border:1px solid var(--line);background:var(--paper);font:inherit;font-size:var(--fs-13);font-weight:600;color:var(--ink-2);min-height:36px;cursor:pointer}
.ux-chip[aria-pressed="true"]{background:var(--navy);color:#fff;border-color:var(--navy)}
.ux-note{font-size:var(--fs-13);color:var(--muted);margin:0}
.ux-page-404{max-width:560px;margin:40px auto;text-align:center;display:grid;gap:12px;justify-items:center}
.ux-page-404 h1{font-size:clamp(28px,6vw,40px);margin:0}
.ux-login{max-width:460px;margin:24px auto}
.ux-login .ux-card{padding:20px}
.ux-field{display:grid;gap:6px;margin:0 0 14px}
.ux-field>span{font-size:var(--fs-13);font-weight:700;color:var(--ink-2)}
.ux-field input,.ux-field select,.ux-field textarea{width:100%;border:1px solid var(--line-strong);background:var(--paper);color:var(--ink);border-radius:var(--r-md);min-height:46px;padding:10px 12px;font:inherit;font-size:var(--fs-16)}
.ux-field .ux-field-error{color:var(--danger-600);font-size:var(--fs-13);font-weight:600}
.ux-field.has-error input{border-color:var(--danger)}
.ux-field-row{display:flex;gap:8px;align-items:stretch}.ux-field-row input{flex:1}
.ux-hint{font-size:var(--fs-13);color:var(--muted);margin:0}

/* ---------- Espace élève ---------- */
.ux-chapter{display:block;text-decoration:none;color:inherit}
.ux-chapter:hover{border-color:var(--teal-100)}
.ux-chapter .ux-card-head{align-items:center}
.ux-chapter .iconbox{width:40px;height:40px;border-radius:var(--r-md);background:var(--teal-50);color:var(--teal);display:grid;place-items:center;flex-shrink:0}
.ux-chapter .iconbox svg{width:22px;height:22px}
.ux-skill-list{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.ux-activity-tools{display:flex;align-items:center;gap:8px;margin:0 0 10px;min-width:0}
.ux-activity-tools .ux-save-state{flex:1;min-width:0;margin:0;font-size:var(--fs-13);color:var(--muted);overflow-wrap:anywhere}
.ux-save-state{font-size:var(--fs-13);color:var(--muted);margin:8px 0}
.course-toolbar.is-session .btn.small{flex:0 0 auto}
.course-toolbar .spacer{flex:1}
.campus-resume{margin:0 0 24px}
.ux-login-form .ux-field-row{display:flex;gap:8px}.ux-login-form .ux-field-row input{flex:1;min-width:0}.ux-login-form .ux-field-row .btn{flex:0 0 auto;width:auto}
.ux-first-access{margin:8px 0}.ux-first-access>summary{cursor:pointer;min-height:36px;display:flex;align-items:center;font-weight:600;color:var(--muted);font-size:var(--fs-13)}

/* ---------- Confiance compacte ---------- */
.confidence-box{margin:10px 0;padding:6px 10px;border:1px dashed var(--line);border-radius:var(--r-md);background:var(--paper);display:flex;flex-wrap:wrap;align-items:center;gap:6px 10px}
.confidence-box .confidence-label{margin:0;font-size:var(--fs-13);font-weight:700;color:var(--ink-2);display:flex;flex-direction:column}
.confidence-box .confidence-label span{font-size:var(--fs-12);font-weight:400;color:var(--muted);display:block}
.confidence-box .confidence-options{display:flex;flex-wrap:wrap;gap:6px}
.confidence-box .confidence-options button{min-height:44px;padding:4px 10px;border:1px solid var(--line-strong);border-radius:var(--r-pill);background:var(--paper);color:var(--ink-2);font:inherit;font-size:var(--fs-13);font-weight:600}
.confidence-box .confidence-options button[aria-pressed=true]{border-color:var(--teal);background:var(--teal-50);color:var(--teal-600);box-shadow:inset 0 0 0 1px var(--teal)}
.confidence-box details{flex-basis:100%;margin:0}
.confidence-box summary{font-size:var(--fs-13);color:var(--muted);padding:4px 0;min-height:36px;display:flex;align-items:center}
.confidence-box small{flex-basis:100%;margin:0;font-size:var(--fs-12)}
.answer-tools .btn{min-height:44px}
.recall-aids{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}
.recall-aids .btn,.answer-tools .btn:not(.teal){font-size:var(--fs-13)}
/* Cibles tactiles : 44 px minimum sur écran étroit ou pointeur grossier (déclaré en dernier pour primer). */
@media(max-width:430px),(pointer:coarse){.btn.small{min-height:44px}.btn.icon.small{width:44px}.ux-stepper-grid button{width:44px;height:44px}.ux-chip{min-height:44px}.answer-card summary,.now-guide summary,.confidence-box summary{min-height:44px;display:flex;align-items:center}}
@media(max-width:430px){.confidence-box .confidence-options button{padding:4px 8px;font-size:var(--fs-12)}.confidence-box .confidence-label span{display:inline;margin-left:4px}}
/* ---------- Espace enseignant ---------- */
.ux-year-select select{min-height:44px;border:1px solid var(--line-strong);border-radius:var(--r-md);padding:8px 12px;background:var(--paper);font:inherit;font-size:var(--fs-14);max-width:220px}
.ux-shortcut{display:flex;gap:12px;align-items:center;text-decoration:none;color:inherit}
.ux-shortcut .iconbox{width:40px;height:40px;border-radius:var(--r-md);background:var(--navy-50);color:var(--navy);display:grid;place-items:center;flex-shrink:0}
.ux-shortcut .iconbox svg{width:22px;height:22px}
.ux-shortcut h3{margin:0;font-size:var(--fs-16)}
.student-grid .ux-student-card .ux-card-foot{margin-top:6px}
.live-workspace{margin:0 0 20px;padding:0;border:0;background:transparent}
.live-toolbar{display:flex;flex-wrap:wrap;gap:8px 16px;align-items:center;justify-content:space-between;margin:0 0 12px}
.live-freshness{margin:0;display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:var(--fs-13);color:var(--muted)}
.live-tabs.ux-tabs{margin:12px 0 6px}
.live-tabs.ux-tabs button{min-height:44px}
.live-views{display:flex;flex-wrap:wrap;gap:6px;align-items:center;margin:0 0 12px}
.live-views-label{font-size:var(--fs-12);font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin-right:4px}
.live-views button{min-height:36px;padding:6px 12px;border-radius:var(--r-pill);border:1px solid var(--line);background:var(--paper);font:inherit;font-size:var(--fs-13);font-weight:600;color:var(--ink-2)}
.live-views button[aria-selected="true"]{background:var(--navy);color:#fff;border-color:var(--navy)}
@media(max-width:430px),(pointer:coarse){.live-views button{min-height:44px}}
[data-ux-menu-toggle]{flex:0 0 auto;min-width:44px}
.live-kpis.ux-stats{margin:0 0 12px}
@media(max-width:600px){.live-kpis.ux-stats{grid-template-columns:repeat(4,minmax(0,1fr));gap:6px}.live-kpis .ux-stat{padding:8px 6px}.live-kpis .ux-stat b{font-size:var(--fs-18)}.live-kpis .ux-stat span{font-size:var(--fs-12);line-height:1.2}}
.start-funnel.ux-stats{list-style:none;padding:0;margin:8px 0 12px;grid-template-columns:repeat(2,minmax(0,1fr))}
@media(min-width:768px){.start-funnel.ux-stats{grid-template-columns:repeat(4,minmax(0,1fr))}}
.start-steps{margin:8px 0 12px}
.path-sequence{list-style:none;margin:0;padding:0;display:grid;gap:10px;counter-reset:step}
.path-sequence>li{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);padding:14px 16px;counter-increment:step;position:relative;padding-left:52px}
.path-sequence>li::before{content:counter(step);position:absolute;left:14px;top:14px;width:28px;height:28px;border-radius:50%;background:var(--navy-50);display:grid;place-items:center;font-weight:700;font-size:var(--fs-13)}
.path-sequence>li[data-removed="true"]::before{content:"–"}
.path-sequence>li h3{margin:0 0 4px;font-size:var(--fs-16)}
.path-sequence>li p{margin:0 0 6px;color:var(--muted);font-size:var(--fs-13)}
.path-sequence>li .actions{display:flex;flex-wrap:wrap;gap:6px;margin:8px 0}
.path-sequence>li .actions .btn{min-height:40px;padding:6px 10px;font-size:var(--fs-13);width:auto}
.path-sequence>li details>summary{cursor:pointer;font-size:var(--fs-13);color:var(--muted);min-height:36px;display:flex;align-items:center}
.path-pace{margin:0 0 12px}.path-pace select{min-height:44px;border:1px solid var(--line-strong);border-radius:var(--r-md);padding:8px;background:var(--paper);font:inherit}
.path-link{margin-top:12px}.path-link>summary{cursor:pointer;min-height:44px;display:flex;align-items:center;font-weight:700}
.live-toolbar .ux-actions .btn{width:auto;flex:0 1 auto}
@media(max-width:600px){.live-toolbar{gap:8px}.live-toolbar .live-freshness{flex:1 1 100%;margin:0}.live-toolbar .ux-actions .btn{flex:0 0 44px;width:44px;padding:0;justify-content:center}.live-toolbar .live-tool-label{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}.live-tabs.ux-tabs button{padding:8px 9px;font-size:var(--fs-13)}}
.ux-subnav{display:flex;gap:6px;overflow-x:auto;scrollbar-width:none;margin:-8px 0 18px;padding:2px 0}
.ux-subnav::-webkit-scrollbar{display:none}
.ux-subnav a{flex:0 0 auto;min-height:40px;padding:8px 14px;border-radius:var(--r-pill);border:1px solid var(--line);background:var(--paper);text-decoration:none;color:var(--ink-2);font-size:var(--fs-13);font-weight:700;display:inline-flex;align-items:center}
.ux-subnav a[aria-current="page"]{background:var(--navy);color:#fff;border-color:var(--navy)}
@media(pointer:coarse){.ux-subnav a{min-height:44px}}
/* ---------- Leçon en cinq étapes et CONSTRUIRE ---------- */
.study-tabs{display:flex;gap:4px;padding:4px;background:var(--navy-50);border-radius:var(--r-md);overflow-x:auto;scrollbar-width:none;margin:12px 0 16px}
.study-tabs::-webkit-scrollbar{display:none}
.study-tabs button{flex:1 0 auto;min-height:44px;padding:8px 12px;border:0;background:transparent;border-radius:var(--r-sm);font:inherit;font-weight:700;font-size:var(--fs-14);color:var(--ink-2);white-space:nowrap;display:inline-flex;align-items:center;gap:8px;justify-content:center}
.study-tabs button[aria-selected="true"]{background:var(--paper);color:var(--navy);box-shadow:var(--shadow-1)}
.study-step-num{width:22px;height:22px;border-radius:50%;background:var(--navy-100);color:var(--navy);display:inline-grid;place-items:center;font-size:var(--fs-12)}
.study-tabs button[aria-selected="true"] .study-step-num{background:var(--teal);color:#fff}
.build{display:grid;gap:14px}
.build-problem{margin:0;padding:12px 14px;border-left:4px solid var(--teal);background:var(--teal-50);border-radius:var(--r-sm);font-size:var(--fs-16)}
.build-steps{margin:0}
.build-steps>li{padding:0;border:0;background:transparent}
@media(min-width:768px){.build-steps{flex-wrap:wrap;overflow:visible}}
.build-steps .build-step{display:flex;align-items:center;gap:8px;min-height:44px;padding:6px 12px 6px 6px;border:1px solid var(--line);border-radius:var(--r-pill);background:var(--paper);font:inherit;font-weight:700;font-size:var(--fs-13);color:var(--ink-2);cursor:pointer}
.build-steps>li[aria-current="step"] .build-step{border-color:var(--teal);color:var(--navy);box-shadow:inset 0 0 0 1px var(--teal)}
.build-steps>li[data-state="done"] .build-step{background:var(--success-50);border-color:var(--success-100);color:var(--success-600)}
.build-steps>li[data-state="done"] .ux-timeline-index{background:var(--success);color:#fff}
.build-card{display:grid;gap:12px}
.build-card h3{margin:0}
.build-question{padding:12px 0 4px;border-top:1px solid var(--line)}
.build-question:first-of-type{border-top:0}
.build-footer{display:flex;gap:8px;align-items:center;flex-wrap:wrap;padding-top:8px;border-top:1px solid var(--line)}
.build-footer .spacer{flex:1}
.retain{display:grid;gap:16px}
.retain-errors p{margin:6px 0 0;color:var(--ink-2)}
.retain-tdo table{width:100%}
.now-head .now-programme-link{display:inline-flex;align-items:center;min-height:44px;font-size:var(--fs-14);font-weight:600;color:var(--teal);text-decoration:underline;text-underline-offset:3px}
/* Un seul indicateur d’état et une seule aide en séance : les doublons historiques sont masqués quand la barre de séance ou les outils d’activité existent */
.course-toolbar.is-session~.course-layout [data-course-save],.course-toolbar.is-session~.course-layout [data-course-journal]{display:none}
/* Aide unique en séance : bloc compact sous les onglets de leçon */
.learning-help{display:flex;flex-wrap:wrap;align-items:center;gap:8px 12px;margin:6px 0 10px}
.learning-help .btn{min-height:44px}
.learning-help small{margin:0;color:var(--muted);font-size:var(--fs-13)}
/* ---------- Assistant de préparation de séance ---------- */
.path-planner{display:grid;gap:16px}
.planner-step{display:grid;gap:10px;padding:14px;border:1px solid var(--line);border-radius:var(--r-lg);background:var(--paper)}
.planner-step>h3{margin:0;display:flex;align-items:center;gap:8px;font-size:var(--fs-18)}
.planner-step>h3 .study-step-num{background:var(--teal);color:#fff;width:26px;height:26px}
.planner-grid{display:grid;gap:10px}
@media(min-width:600px){.planner-grid{grid-template-columns:1fr 1fr}}
.path-planner label{margin:0}
.planner-filters>summary{cursor:pointer;min-height:40px;display:flex;align-items:center;font-weight:700;color:var(--muted);font-size:var(--fs-13)}
.path-filters{display:grid;gap:8px;grid-template-columns:repeat(2,minmax(0,1fr));margin-top:8px}
@media(min-width:600px){.path-filters{grid-template-columns:repeat(3,minmax(0,1fr))}}
.planner-resource{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.planner-resource .ux-note{flex:1;min-width:0}
.planner-students{display:grid;gap:4px;max-height:220px;overflow:auto;padding:6px;border:1px solid var(--line);border-radius:var(--r-md)}
.path-recipient{display:flex;align-items:center;gap:8px;min-height:40px}
.path-planner .path-sequence>li{padding-left:16px}
.path-planner .path-sequence>li::before{display:none}
.planner-empty{color:var(--muted);border-style:dashed}
.planner-foot{display:flex;flex-wrap:wrap;gap:8px;justify-content:flex-end;position:sticky;bottom:0;background:var(--paper);padding:10px 0 0;border-top:1px solid var(--line)}
@media(max-width:600px){.planner-foot .btn{flex:1}}
[data-preview-content]{margin:8px 0;padding:10px 12px;border-left:3px solid var(--teal);background:var(--teal-50);border-radius:var(--r-sm);font-size:var(--fs-14)}