:root{
  --bg:#F5F0E6;--paper:#FFF9EF;--paper2:#F8F0DF;--ink:#1F2C24;--muted:#6D756C;--border:#D6D0BF;
  --green:#2F5F43;--green2:#244936;--blue:#315F75;--orange:#A86D24;--red:#A33A35;--purple:#62518B;
  --shadow:0 14px 34px rgba(41,75,54,.09);--radius:18px;--radius2:12px;--ui:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;--serif:Georgia,"Times New Roman",serif;--mono:"SFMono-Regular",Consolas,monospace;
}
*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}html,body{min-height:100%}body{background:var(--bg);color:var(--ink);font-family:var(--ui);font-size:15px;line-height:1.55;overflow-x:hidden}button,input,textarea,select{font:inherit}button{cursor:pointer}button:disabled{opacity:.55;cursor:not-allowed}#app{max-width:1120px;margin:0 auto;min-height:100vh;background:linear-gradient(180deg,#FBF8F0 0,#F5F0E6 62%,#ECE4D3 100%)}
header{position:sticky;top:0;z-index:50;background:rgba(245,240,230,.96);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);padding:13px 16px 10px}.head{display:flex;justify-content:space-between;gap:12px;align-items:flex-start}.brand h1{font-family:var(--serif);color:var(--green2);letter-spacing:-.04em;font-size:30px;line-height:1}.eyebrow{font-size:10px;letter-spacing:.22em;text-transform:uppercase;color:var(--green);font-weight:900}.subtitle{font-size:12px;color:var(--muted);margin-top:4px}.header-stats{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}.stat-pill{background:var(--paper);border:1px solid var(--border);border-radius:999px;padding:6px 9px;font-size:11px;color:var(--muted);box-shadow:var(--shadow)}.stat-pill strong{color:var(--green2);font-size:13px}nav{display:grid;grid-template-columns:repeat(5,1fr);gap:6px;margin-top:12px}.nav-btn{border:1px solid transparent;background:transparent;color:var(--muted);font-size:10px;font-weight:900;letter-spacing:.06em;text-transform:uppercase;padding:9px 2px;border-radius:999px}.nav-btn.active{background:var(--green);color:#FFF8E8;border-color:var(--green)}
main{padding:18px 16px 86px}.page{display:none;animation:fade .14s ease}.page.active{display:block}@keyframes fade{from{opacity:.55;transform:translateY(4px)}to{opacity:1;transform:none}}
.section-kicker{font-size:11px;text-transform:uppercase;letter-spacing:.18em;color:var(--green);font-weight:900;margin-bottom:5px}.section-title{font-family:var(--serif);font-size:26px;line-height:1.1;color:var(--green2);letter-spacing:-.03em;margin:4px 0 16px}.card{position:relative;background:var(--paper);border:1px solid var(--border);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow);margin-bottom:14px;overflow:hidden}.card:after{content:"";position:absolute;right:-26px;top:-26px;width:94px;height:94px;border-radius:50%;background:radial-gradient(circle,rgba(83,132,94,.13),rgba(83,132,94,0) 68%);pointer-events:none}.card-title{font-family:var(--serif);font-size:20px;color:var(--green2);letter-spacing:-.03em;margin-bottom:5px}.card-sub,.small-note{font-size:12px;color:var(--muted)}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:12px}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:9px}.grid-4{display:grid;grid-template-columns:repeat(5,1fr);gap:8px}.kpi{background:var(--paper2);border:1px solid var(--border);border-radius:var(--radius2);padding:13px}.kpi b{display:block;font-family:var(--serif);font-size:28px;line-height:1;color:var(--green)}.kpi span{display:block;font-size:10px;color:var(--muted);font-weight:900;text-transform:uppercase;letter-spacing:.08em;margin-top:4px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;border:none;border-radius:999px;padding:11px 15px;font-weight:900;font-size:12px;letter-spacing:.07em;text-transform:uppercase;text-decoration:none;transition:.12s ease;text-align:center}.btn:active{transform:scale(.98)}.btn-primary{background:var(--green);color:#FFF8E8}.btn-secondary{background:var(--blue);color:#FFF8E8}.btn-soft{background:var(--paper2);border:1px solid var(--border);color:var(--green2)}.btn-ghost{background:transparent;border:1px solid var(--border);color:var(--ink)}.btn-danger{background:#F0D3CD;color:var(--red);border:1px solid #D6AAA1}.btn-full{width:100%}.btn-sm{padding:7px 10px;font-size:10px}.btn-row{display:flex;gap:8px;flex-wrap:wrap;align-items:center}.field{margin-bottom:12px}.field label{display:block;font-size:11px;color:var(--muted);font-weight:900;letter-spacing:.08em;text-transform:uppercase;margin-bottom:5px}input,textarea,select{width:100%;border:1px solid var(--border);background:#FFFDF7;color:var(--ink);border-radius:var(--radius2);padding:11px 12px;outline:none}textarea{min-height:110px;resize:vertical}input:focus,textarea:focus,select:focus{border-color:var(--green);box-shadow:0 0 0 3px rgba(47,95,67,.12)}
.segment{display:flex;gap:6px;overflow:auto;padding-bottom:5px;scrollbar-width:none;margin-bottom:12px}.segment::-webkit-scrollbar{display:none}.seg-btn{flex:0 0 auto;border:1px solid var(--border);background:var(--paper);color:var(--muted);border-radius:999px;padding:8px 11px;font-size:10px;font-weight:900;text-transform:uppercase;letter-spacing:.06em}.seg-btn.active{background:var(--green);border-color:var(--green);color:#FFF8E8}.badge{display:inline-flex;align-items:center;border-radius:999px;padding:3px 8px;font-size:10px;font-weight:900;letter-spacing:.06em;text-transform:uppercase;border:1px solid var(--border);background:var(--paper2);color:var(--muted);white-space:nowrap}.badge.green{background:#E5EFE7;color:var(--green);border-color:#C5D8C9}.badge.orange{background:#F4E3CA;color:#80510E;border-color:#DDC094}.badge.red{background:#F2D9D5;color:var(--red);border-color:#D6AAA1}.badge.blue{background:#DFEBEF;color:var(--blue);border-color:#BCD0D8}.badge.purple{background:#E9E2F0;color:var(--purple);border-color:#C9BED9}.list{display:flex;flex-direction:column;gap:10px}.list-item{background:var(--paper);border:1px solid var(--border);border-radius:var(--radius);padding:14px;box-shadow:var(--shadow);display:flex;gap:12px;align-items:flex-start;justify-content:space-between}.list-main{min-width:0;flex:1}.list-title{font-weight:900;color:var(--green2);font-size:15px;line-height:1.25;margin-bottom:5px}.list-meta{font-size:12px;color:var(--muted)}.list-actions{flex:0 0 auto;display:flex;gap:6px;align-items:center;flex-wrap:wrap;justify-content:flex-end}.empty{text-align:center;color:var(--muted);padding:34px 14px}.empty big{display:block;font-family:var(--serif);font-size:42px;color:var(--border);line-height:1;margin-bottom:6px}.progress-wrap{height:8px;background:#E6E0D0;border-radius:999px;overflow:hidden;border:1px solid rgba(0,0,0,.05);margin-top:8px}.progress-bar{height:100%;width:0;background:var(--green);border-radius:999px}.progress-bar.red{background:var(--red)}.progress-bar.orange{background:var(--orange)}.progress-bar.blue{background:var(--blue)}
.callout{border-left:4px solid var(--green);background:linear-gradient(180deg,#FBF8F0 0,var(--paper2) 100%);padding:13px 14px;border-radius:0 var(--radius2) var(--radius2) 0;margin:10px 0}.callout.blue{border-left-color:var(--blue)}.callout.orange{border-left-color:var(--orange)}.callout.red{border-left-color:var(--red)}.prose{font-family:var(--serif);font-size:18px;line-height:1.72;color:#1D2530;white-space:pre-wrap}.mono{font-family:var(--mono);letter-spacing:.01em;background:#FFFDF7;border:1px dashed var(--border);border-radius:var(--radius2);padding:13px;white-space:pre-wrap;overflow:auto}.table-wrap{overflow:auto;border:1px solid var(--border);border-radius:var(--radius2);margin:10px 0}table{width:100%;border-collapse:collapse;background:#FFFDF7}th,td{padding:10px;border-bottom:1px solid var(--border);text-align:left;vertical-align:top;font-size:13px}th{background:var(--paper2);color:var(--green2);font-size:11px;text-transform:uppercase;letter-spacing:.08em}tr:last-child td{border-bottom:none}.timeline{position:relative;padding-left:16px}.timeline:before{content:"";position:absolute;left:4px;top:5px;bottom:5px;width:2px;background:var(--border)}.timeline-item{position:relative;margin:10px 0;padding-left:14px}.timeline-item:before{content:"";position:absolute;left:-16px;top:5px;width:10px;height:10px;background:var(--green);border-radius:50%;border:2px solid var(--paper)}.timeline-date{font-weight:900;color:var(--green)}
.slide-shell{max-width:790px;margin:0 auto}.slide-card{background:var(--paper);border:1px solid var(--border);border-radius:28px;padding:24px;box-shadow:var(--shadow);min-height:430px;display:flex;flex-direction:column;gap:15px}.slide-head{display:flex;justify-content:space-between;gap:10px;align-items:flex-start}.slide-label{font-size:11px;text-transform:uppercase;letter-spacing:.16em;color:var(--muted);font-weight:900}.slide-title{font-family:var(--serif);font-size:30px;line-height:1.1;color:var(--green2);letter-spacing:-.04em}.slide-body{flex:1}.slide-question{font-family:var(--serif);font-size:24px;line-height:1.35;color:var(--green2)}.slide-footer{display:flex;gap:8px;justify-content:space-between;align-items:center;flex-wrap:wrap}.dots{display:flex;gap:4px;flex-wrap:wrap}.dot{width:8px;height:8px;border-radius:50%;background:#D2CCBA}.dot.active{background:var(--green)}.dot.done{background:#86A58E}.phase-title{font-size:11px;text-transform:uppercase;letter-spacing:.16em;color:var(--green);font-weight:900;margin:22px 0 8px;border-top:1px solid var(--border);padding-top:14px}.library-slide{background:var(--paper);border:1px solid var(--border);border-radius:var(--radius);padding:16px;margin-bottom:10px}.slide-type{font-size:10px;text-transform:uppercase;letter-spacing:.1em;color:var(--muted);font-weight:900}.schema-box{background:#FFFDF7;border:1px solid var(--border);border-radius:var(--radius2);padding:12px;margin:10px 0}.schema-nodes{display:flex;gap:8px;flex-wrap:wrap}.schema-node{border:1px solid var(--border);border-radius:999px;background:var(--paper2);padding:7px 10px;font-size:12px;font-weight:800}.schema-rel{font-size:12px;color:var(--muted);margin-top:8px}.comparison{display:grid;grid-template-columns:1fr 1fr;gap:10px}.compare-card{background:#FFFDF7;border:1px solid var(--border);border-radius:var(--radius2);padding:12px}.option-list{display:flex;flex-direction:column;gap:8px;margin-top:10px}.opt{border:1px solid var(--border);background:#FFFDF7;border-radius:var(--radius2);padding:12px;text-align:left;color:var(--ink)}.opt.correct{border-color:var(--green);background:#E5EFE7;color:var(--green);font-weight:900}.opt.wrong{border-color:var(--red);background:#F4DEDA;color:var(--red);font-weight:900}.correction{display:none;margin-top:10px}.correction.show{display:block}.hidden{display:none!important}.toast{position:fixed;left:50%;bottom:20px;transform:translate(-50%,14px);opacity:0;visibility:hidden;pointer-events:none;background:var(--green);color:#FFF8E8;border-radius:999px;padding:11px 17px;z-index:100;font-size:13px;font-weight:800;box-shadow:0 10px 30px rgba(0,0,0,.2);max-width:90vw;width:max-content;text-align:center;cursor:pointer;transition:opacity .18s ease,transform .18s ease,visibility 0s linear .18s}.toast.show{transform:translate(-50%,0);opacity:1;visibility:visible;pointer-events:auto;transition-delay:0s}
.lib-header{display:flex;align-items:flex-start;justify-content:space-between;gap:10px;margin-bottom:12px}.lib-title{font-family:var(--serif);font-size:27px;color:var(--green2);letter-spacing:-.04em;line-height:1.1}.lib-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:12px}.lib-card{width:100%;text-align:left;display:block;border:1px solid var(--border);background:var(--paper);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow);color:var(--ink)}.lib-card strong{display:block;font-family:var(--serif);font-size:21px;color:var(--green2);line-height:1.12;margin-bottom:5px}.accordion{background:var(--paper);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:12px;overflow:hidden}.accordion summary{list-style:none;cursor:pointer;padding:15px 16px;display:flex;gap:10px;align-items:center;justify-content:space-between}.accordion summary::-webkit-details-marker{display:none}.accordion-body{border-top:1px solid var(--border);padding:12px}.library-course-header{background:var(--paper);border:1px solid var(--border);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow);margin-bottom:14px}.library-course-title{font-family:var(--serif);font-size:30px;color:var(--green2);line-height:1.1;letter-spacing:-.04em}.library-sequence-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.drawer{position:fixed;inset:0;background:rgba(28,24,18,.45);display:none;align-items:flex-end;z-index:80}.drawer.open{display:flex}.drawer-panel{background:var(--bg);width:100%;max-height:90vh;overflow:auto;border-radius:24px 24px 0 0;padding:20px 16px;box-shadow:0 -18px 50px rgba(0,0,0,.25)}.drawer-head{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:12px}.drawer-title{font-family:var(--serif);font-size:24px;color:var(--green2);line-height:1.1}

/* Exercices V11 */
.exercise-session-progress{height:6px;background:var(--paper2);border:1px solid var(--border);border-radius:999px;overflow:hidden;margin:-4px 0 2px}.exercise-session-progress span{display:block;height:100%;background:var(--green);border-radius:999px;transition:width .2s ease}.exercise-answer-label{display:block;margin:12px 0 5px;font-size:11px;font-weight:900;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}.exercise-validation-actions{margin-top:12px}.guided-options .opt:disabled{opacity:1}.opt.selected{border-color:var(--blue);background:#E7F0F3;color:var(--blue);font-weight:900;box-shadow:0 0 0 2px rgba(45,91,107,.08)}textarea[readonly]{background:var(--paper2);color:var(--muted)}.guided-verdict{border-radius:var(--radius2);padding:12px 14px;margin:12px 0;border:1px solid var(--border)}.guided-verdict.success{background:#E5EFE7;color:var(--green);border-color:#C5D8C9}.guided-verdict.error{background:#F4DEDA;color:var(--red);border-color:#D6AAA1}.user-answer-snapshot{background:#FFFDF7;border:1px solid var(--border);border-radius:var(--radius2);padding:12px 14px;margin:10px 0}.user-answer-snapshot>div{white-space:pre-wrap;margin-top:5px}.criteria-evaluation{background:var(--paper2);border:1px solid var(--border);border-radius:var(--radius2);padding:12px 14px;margin:10px 0}.criteria-evaluation ul{list-style:none;margin-top:8px;display:flex;flex-direction:column;gap:6px}.criteria-evaluation li{display:flex;gap:8px;align-items:flex-start}.criteria-evaluation li.hit{color:var(--green);font-weight:800}.criteria-evaluation li.miss{color:var(--muted)}.score-panel{margin-top:12px;padding:14px;border:1px solid var(--border);background:#FFFDF7;border-radius:var(--radius2);display:flex;flex-direction:column;gap:10px}.suggested-score{box-shadow:0 0 0 3px rgba(47,95,67,.18);transform:translateY(-1px)}.reasoning-list textarea{min-height:84px}
@media (min-width:780px){main{padding:24px 24px 90px}.dashboard{display:grid;grid-template-columns:1.1fr .9fr;gap:16px}.grid-2-wide{display:grid;grid-template-columns:1fr 1fr;gap:14px}.drawer{align-items:center;justify-content:center}.drawer-panel{max-width:820px;border-radius:24px;max-height:86vh}.slide-card{padding:30px}.slide-title{font-size:36px}.slide-question{font-size:28px}}
@media (max-width:620px){nav{grid-template-columns:repeat(5,1fr);gap:3px}.nav-btn{font-size:9px;padding:8px 0}.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.list-item{flex-direction:column}.list-actions{width:100%;justify-content:flex-start}.comparison{grid-template-columns:1fr}.slide-card{min-height:390px;padding:18px}}

/* Correctif V11.1 — entraînement libre */
.free-session-toolbar{display:flex;align-items:center;justify-content:space-between;gap:8px;flex-wrap:wrap;margin-bottom:4px;padding-bottom:10px;border-bottom:1px solid var(--border)}.free-session-toolbar .btn:disabled{opacity:.45;cursor:not-allowed}.opt{cursor:pointer;touch-action:manipulation}.opt:disabled{cursor:default}@media(max-width:620px){.free-session-toolbar{align-items:stretch}.free-session-toolbar .badge{order:-1;width:100%;justify-content:center;text-align:center}.free-session-toolbar .btn{flex:1}}


/* V13 — navigation mobile et accessibilité */
main:focus{outline:none}
.skip-link{position:fixed;left:12px;top:10px;z-index:1000;background:var(--green2);color:#fff;padding:10px 14px;border-radius:10px;transform:translateY(-150%);transition:transform .15s ease}.skip-link:focus{transform:none}
:focus-visible{outline:3px solid #C18A2B;outline-offset:3px}button:focus:not(:focus-visible),a:focus:not(:focus-visible){outline:none}
.app-back{flex:0 0 auto;width:44px;height:44px;border:1px solid var(--border);border-radius:999px;background:var(--paper);color:var(--green2);font-size:22px;font-weight:900;align-items:center;justify-content:center}.app-back:not([hidden]){display:inline-flex}.head .brand{min-width:0;flex:1}
.nav-icon{display:none;font-size:19px;line-height:1}.drawer[aria-hidden="true"]{display:none}.drawer.open[aria-hidden="false"]{display:flex}.drawer-panel:focus{outline:none}
body.overlay-open{overflow:hidden}.opt,.lib-card,.accordion summary,.bk-tab,.bk-toc-item{touch-action:manipulation}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}
@media (max-width:620px){
  #app{padding-bottom:calc(69px + env(safe-area-inset-bottom))}
  header{position:relative;top:auto;padding:10px 14px 9px;background:var(--bg);backdrop-filter:none}
  .head{align-items:center}.brand h1{font-size:27px}.eyebrow{font-size:9px}.subtitle{font-size:11px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:56vw}
  .header-stats{gap:5px;max-width:128px}.stat-pill{padding:5px 7px;font-size:9px}.stat-pill strong{font-size:12px}
  nav{position:fixed;z-index:90;left:0;right:0;bottom:0;margin:0;padding:6px 5px max(6px,env(safe-area-inset-bottom));grid-template-columns:repeat(5,1fr);gap:2px;background:rgba(255,249,239,.98);border-top:1px solid var(--border);box-shadow:0 -8px 24px rgba(41,75,54,.10)}
  .nav-btn{min-height:52px;border-radius:12px;padding:5px 1px;font-size:8px;letter-spacing:.02em;display:flex;flex-direction:column;gap:2px;align-items:center;justify-content:center}.nav-btn.active{background:var(--paper2);color:var(--green2);border-color:var(--border)}.nav-btn.active .nav-icon{color:var(--green)}.nav-icon{display:block}
  main{padding:14px 12px 28px}.section-title{font-size:24px;margin-bottom:12px}.card{padding:15px}.slide-card{border-radius:21px;padding:16px;min-height:auto}.slide-title{font-size:27px}.slide-question{font-size:21px}.prose{font-size:17px;line-height:1.62}
  .btn{min-height:44px}.btn-sm{min-height:40px}.opt{min-height:52px;padding:14px}.field select,.field input{min-height:46px}.toast{bottom:calc(78px + env(safe-area-inset-bottom))}
  .drawer-panel{max-height:calc(92vh - env(safe-area-inset-top));padding-bottom:max(20px,env(safe-area-inset-bottom))}
}

.session-navigation-toolbar{display:flex;align-items:center;justify-content:space-between;gap:8px;flex-wrap:wrap;margin-bottom:4px;padding-bottom:10px;border-bottom:1px solid var(--border)}
@media(max-width:620px){.session-navigation-toolbar{align-items:stretch}.session-navigation-toolbar .btn{flex:1}.session-navigation-toolbar .badge{order:-1;width:100%;justify-content:center}}