.dossier-page{display:none;}.dossier-page.active{display:block;}
.dossier-header{display:flex;align-items:flex-start;gap:20px;background:linear-gradient(135deg,color-mix(in srgb,var(--accent) 10%,var(--card)),var(--card));border:1px solid var(--border);border-radius:1.25rem;padding:24px 28px;margin-bottom:24px;box-shadow:0 4px 24px var(--shadow);}
.dossier-num{flex-shrink:0;width:54px;height:54px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;font-family:'IBM Plex Mono',monospace;font-weight:700;font-size:1.1rem;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 14px color-mix(in srgb,var(--accent) 40%,transparent);}
.dossier-meta{flex:1;}.dossier-tag{display:inline-block;font-size:.6rem;font-weight:800;text-transform:uppercase;letter-spacing:.1em;color:var(--accent);background:color-mix(in srgb,var(--accent) 12%,transparent);border:1px solid color-mix(in srgb,var(--accent) 25%,transparent);padding:3px 10px;border-radius:9999px;margin-bottom:8px;}
.dossier-meta h2{font-family:'Playfair Display',serif;font-size:1.3rem;font-weight:700;color:var(--text);margin-bottom:6px;}
.dossier-meta p{font-size:.88rem;color:var(--text2);line-height:1.6;}
.diagram-wrap{background:var(--card);border:1px solid var(--border);border-radius:1.25rem;padding:20px;margin-bottom:24px;text-align:center;box-shadow:0 2px 14px var(--shadow);}
.diagram-wrap figcaption{font-family:'IBM Plex Mono',monospace;font-size:.65rem;color:var(--text2);margin-top:10px;font-style:italic;}
.diagram-wrap svg{max-width:100%;height:auto;display:block;margin:0 auto;}
.questions-block{margin-bottom:28px;}
.questions-block h3{font-family:'Playfair Display',serif;font-size:1rem;font-weight:700;color:var(--accent);margin-bottom:14px;padding-bottom:8px;border-bottom:2px solid color-mix(in srgb,var(--accent) 20%,transparent);}
.question-item{background:var(--card);border:1px solid var(--border);border-radius:1rem;margin-bottom:12px;overflow:hidden;transition:box-shadow .2s;}
.question-item:hover{box-shadow:0 4px 18px var(--shadow);}
.question-q{display:flex;align-items:flex-start;gap:12px;padding:14px 18px;cursor:pointer;user-select:none;}
.q-num{flex-shrink:0;width:28px;height:28px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;font-size:.72rem;font-weight:800;display:flex;align-items:center;justify-content:center;font-family:'IBM Plex Mono',monospace;}
.q-text{flex:1;font-size:.88rem;font-weight:600;color:var(--text);line-height:1.5;padding-top:4px;}
.q-badge{display:inline-flex;align-items:center;font-family:'IBM Plex Mono',monospace;font-size:.6rem;font-weight:700;color:var(--accent2);background:color-mix(in srgb,var(--accent2) 10%,var(--bg2));border:1px solid color-mix(in srgb,var(--accent2) 25%,transparent);border-radius:9999px;padding:2px 8px;margin-left:8px;white-space:nowrap;}
.q-toggle{flex-shrink:0;font-size:.75rem;color:var(--text2);background:color-mix(in srgb,var(--accent) 10%,var(--bg2));border:1px solid var(--border);border-radius:9999px;padding:4px 12px;white-space:nowrap;margin-top:2px;transition:all .2s;font-family:'DM Sans',sans-serif;font-weight:600;}
.question-item.revealed .q-toggle{background:var(--accent);color:#fff;border-color:var(--accent);}
.question-corr{display:none;padding:0 18px 16px 58px;border-top:1px dashed color-mix(in srgb,var(--accent) 20%,transparent);}
.question-item.revealed .question-corr{display:block;}
.corr-label{font-family:'IBM Plex Mono',monospace;font-size:.6rem;font-weight:700;text-transform:uppercase;letter-spacing:.1em;color:var(--correct);margin:12px 0 6px;}
.question-corr p{font-size:.84rem;color:var(--text2);line-height:1.7;}
.question-corr ul{margin:6px 0 0 16px;}
.question-corr li{font-size:.84rem;color:var(--text2);line-height:1.7;}
.question-corr strong{color:var(--text);}
.sub-q{background:color-mix(in srgb,var(--accent) 5%,var(--card2));border-left:3px solid color-mix(in srgb,var(--accent) 30%,transparent);border-radius:0 .5rem .5rem 0;padding:10px 14px;margin-bottom:10px;}
.sub-q-label{font-family:'IBM Plex Mono',monospace;font-size:.65rem;font-weight:700;color:var(--accent);text-transform:uppercase;letter-spacing:.06em;margin-bottom:4px;}
.sub-q p,.sub-q li{font-size:.84rem;color:var(--text2);line-height:1.65;margin:0;}
.sub-q ul{margin:4px 0 0 14px;}
.dos-nav{display:flex;justify-content:space-between;align-items:center;margin-top:32px;gap:12px;}
.dos-nav-btn{display:inline-flex;align-items:center;gap:8px;padding:10px 20px;border-radius:9999px;background:color-mix(in srgb,var(--accent) 14%,var(--card));color:var(--accent);border:1.5px solid color-mix(in srgb,var(--accent) 30%,transparent);font-family:'DM Sans',sans-serif;font-size:.82rem;font-weight:700;cursor:pointer;transition:all .2s;}
.dos-nav-btn:hover{background:var(--accent);color:#fff;}
.dos-nav-btn:disabled{opacity:.35;cursor:not-allowed;}
.dos-nav-btn:disabled:hover{background:color-mix(in srgb,var(--accent) 14%,var(--card));color:var(--accent);}
.dos-counter{font-family:'IBM Plex Mono',monospace;font-size:.78rem;color:var(--text2);}
.chap-step.dos-tab.active-dos{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;box-shadow:0 4px 14px color-mix(in srgb,var(--accent) 45%,transparent);}
.appli-score-wrap{display:flex;align-items:center;gap:10px;}
.appli-score-lbl{font-family:'IBM Plex Mono',monospace;font-size:.62rem;text-transform:uppercase;letter-spacing:.1em;color:var(--text2);}
.appli-score-val{font-family:'IBM Plex Mono',monospace;font-weight:700;font-size:1.05rem;color:var(--accent);}
.dl-strip{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin:10px 18px 0;padding:12px 20px;border-radius:1.25rem;background:color-mix(in srgb,var(--card) 70%,transparent);border:1px solid color-mix(in srgb,#fff 18%,var(--border));backdrop-filter:blur(18px) saturate(150%);-webkit-backdrop-filter:blur(18px) saturate(150%);box-shadow:0 8px 24px -12px rgba(0,0,0,.12);}
.dl-label{font-family:'IBM Plex Mono',monospace;font-size:.62rem;font-weight:700;text-transform:uppercase;letter-spacing:.1em;color:var(--text2);margin-right:4px;}
.dl-btn{display:inline-flex;align-items:center;gap:7px;padding:8px 16px;border-radius:9999px;font-family:'DM Sans',sans-serif;font-size:.78rem;font-weight:700;text-decoration:none;white-space:nowrap;border:1.5px solid transparent;transition:all .2s ease;}
.dl-btn-eleve{background:color-mix(in srgb,var(--accent) 12%,var(--card));color:var(--accent);border-color:color-mix(in srgb,var(--accent) 30%,transparent);}
.dl-btn-eleve:hover{background:var(--accent);color:#fff;text-decoration:none;}
.dl-btn-corr{background:color-mix(in srgb,var(--correct) 12%,var(--card));color:var(--correct);border-color:color-mix(in srgb,var(--correct) 30%,transparent);}
.dl-btn-corr:hover{background:var(--correct);color:#fff;text-decoration:none;}
.dl-info{margin-left:auto;font-family:'IBM Plex Mono',monospace;font-size:.62rem;color:var(--text2);opacity:.75;}
.theme-chips{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px;}
.chip{font-size:.62rem;font-weight:700;text-transform:uppercase;letter-spacing:.07em;padding:3px 10px;border-radius:9999px;background:color-mix(in srgb,var(--accent2) 12%,transparent);color:var(--accent2);border:1px solid color-mix(in srgb,var(--accent2) 25%,transparent);}
.dossier-illust{position:relative;border-radius:1.25rem;overflow:hidden;margin-bottom:24px;height:220px;box-shadow:0 4px 24px var(--shadow);}
.dossier-illust img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .4s ease;}
.dossier-illust:hover img{transform:scale(1.03);}
.dossier-illust-overlay{position:absolute;inset:0;background:linear-gradient(to top,rgba(0,0,0,.55) 0%,transparent 55%);pointer-events:none;}
.dossier-illust-caption{position:absolute;bottom:14px;left:18px;right:18px;color:#fff;font-family:'IBM Plex Mono',monospace;font-size:.68rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;opacity:.9;}
.context-banner{background:linear-gradient(135deg,color-mix(in srgb,var(--accent) 8%,var(--card)),var(--card));border:1px solid var(--border);border-radius:1.25rem;padding:22px 28px;margin-bottom:28px;box-shadow:0 2px 14px var(--shadow);}
.context-banner h2{font-family:'Playfair Display',serif;font-size:1.15rem;font-weight:700;color:var(--text);margin-bottom:8px;}
.context-banner p{font-size:.86rem;color:var(--text2);line-height:1.7;}
.ctx-kpi{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px;}
.kpi-box{flex:1;min-width:100px;background:var(--card2);border:1px solid var(--border);border-radius:.75rem;padding:10px 14px;text-align:center;}
.kpi-val{font-family:'IBM Plex Mono',monospace;font-size:1.05rem;font-weight:700;color:var(--accent);}
.kpi-lbl{font-size:.65rem;color:var(--text2);margin-top:3px;}
.tableau-comp{width:100%;border-collapse:collapse;font-size:.82rem;margin-top:8px;}
.tableau-comp th{background:color-mix(in srgb,var(--accent) 15%,var(--card2));color:var(--accent);font-family:'IBM Plex Mono',monospace;font-size:.65rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;padding:8px 12px;border:1px solid var(--border);text-align:left;}
.tableau-comp td{padding:7px 12px;border:1px solid var(--border);color:var(--text2);line-height:1.55;}
.tableau-comp tr:nth-child(even) td{background:color-mix(in srgb,var(--accent) 3%,var(--card2));}
/* === règles héritées Ch01-07 === */
.doc-context{background:var(--card2);border:1px solid var(--border);border-radius:1rem;padding:20px 24px;margin-bottom:24px;position:relative;overflow:hidden;}
.doc-label{font-family:'IBM Plex Mono',monospace;font-size:.62rem;font-weight:700;text-transform:uppercase;letter-spacing:.1em;color:var(--accent2);margin-bottom:10px;}
.bilan-card{background:linear-gradient(135deg,color-mix(in srgb,var(--correct) 10%,var(--card)),var(--card));border:1px solid color-mix(in srgb,var(--correct) 25%,var(--border));border-radius:1rem;padding:18px 22px;margin-bottom:24px;font-size:.84rem;color:var(--text2);line-height:1.7;}
.section-title{font-family:'Playfair Display',serif;font-size:1.1rem;font-weight:700;color:var(--text);margin:28px 0 14px;padding-left:12px;border-left:3px solid var(--accent);}
.question-textarea{padding:0 1.2rem 0.8rem;}
.q-answer{width:100%;min-height:80px;resize:vertical;padding:.6rem .9rem;border-radius:8px;border:1.5px solid var(--accent,#2E4A7A);background:rgba(255,255,255,.06);color:inherit;font-family:inherit;font-size:.93rem;line-height:1.5;transition:border-color .2s,box-shadow .2s;}
.fs-hint{position:fixed;bottom:2rem;left:50%;transform:translateX(-50%);background:rgba(0,0,0,.7);color:#fff;padding:.5rem 1.2rem;border-radius:20px;font-size:.85rem;opacity:0;transition:opacity .4s;pointer-events:none;z-index:9999;}
.show{opacity:1;}
.editable{padding:0;}
.row-label{padding:7px 12px;font-weight:700;color:var(--text);background:color-mix(in srgb,var(--accent) 8%,var(--card2));white-space:nowrap;}

/* Le titre du dossier doit se replier a cote de son numero. */
@media (max-width: 768px) {
  .dossier-meta.dossier-meta-repli { min-width: 0; overflow-wrap: anywhere; }
  .dossier-meta-repli .dossier-tag { max-width: 100%; white-space: normal; }
}