*{box-sizing:border-box}
body{margin:0;background:var(--fond);color:var(--texte);font:16px/1.6 Inter,Arial,sans-serif}
header{background:var(--surface);border-bottom:1px solid var(--bordure);display:flex;align-items:center;justify-content:space-between;gap:18px;padding:12px max(24px,calc((100% - 1200px)/2))}
a{color:var(--indigo);text-underline-offset:4px}
header a{text-decoration:none;font-weight:600}
.brand{color:var(--texte);white-space:nowrap}.brand span{color:var(--indigo);font-size:24px;margin-right:4px}
nav{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
nav a[aria-current]{text-decoration:underline}
main,footer{max-width:1200px;margin:auto;padding:24px}
footer{color:var(--texteSecondaire);font-size:13px}
h1,h2,h3,legend{font-family:Lora,Georgia,serif;font-weight:500;line-height:1.2}
h1{font-size:clamp(32px,5vw,48px);margin:0 0 14px}h2{font-size:26px}
.hero{background:var(--surfaceDouce);border-radius:16px;padding:clamp(24px,5vw,55px);margin:8px 0 26px}
.kicker{color:var(--indigo);font-size:13px;font-weight:700;letter-spacing:.06em}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,215px),1fr));gap:12px}
.card,fieldset{min-width:0;border:1px solid var(--bordure);background:var(--surface);border-radius:12px;padding:16px;margin:0 0 12px}
.grid .card{margin:0;display:flex;flex-direction:column}
.card h3{margin:8px 0}.card p{margin:5px 0 12px}
.card img{width:100%;height:135px;object-fit:contain;background:#fff;border-radius:8px}
.figure{max-width:100%;max-height:520px;background:#fff;border-radius:8px}
figure{margin:22px 0}figcaption,.muted{color:var(--texteSecondaire);font-size:14px}
button,.action{display:inline-block;background:var(--indigo);color:var(--surIndigo);border:1px solid transparent;border-radius:12px;padding:10px 16px;min-height:44px;text-decoration:none;font:600 15px/1.5 Inter,Arial,sans-serif;cursor:pointer}
button:hover,.action:hover{background:var(--indigoPresse)}.secondary{background:var(--surface);color:var(--indigo);border-color:var(--bordure)}.secondary:hover{background:var(--surfaceSelection)}
.actions{display:flex;gap:8px;flex-wrap:wrap;margin:14px 0}
.reading{max-width:760px;margin:auto}
fieldset legend{padding:0 5px;font-size:21px}
.option{display:block;border:1px solid var(--bordure);border-radius:8px;margin:6px 0;padding:8px;cursor:pointer}.option:has(:checked){background:var(--surfaceSelection)}
input{accent-color:var(--indigo)}input[type=text]{background:var(--surface);color:var(--texte);border:1px solid var(--controle);border-radius:6px;padding:7px;width:min(190px,100%);font:inherit}
:focus-visible{outline:3px solid var(--focus);outline-offset:3px}
.feedback{padding:14px;background:var(--surfaceDouce);border-radius:8px;margin:10px 0}.ok{color:var(--succes)}.bad{color:var(--erreur)}
@media(max-width:780px){header{align-items:flex-start;flex-direction:column;gap:6px}nav{gap:8px 14px}main{padding:16px}}
:root{--fond:#FAF8F5;--surface:#fff;--surfaceDouce:#F1EDF6;--surfaceSelection:#EAE4F6;--texte:#25213D;--texteSecondaire:#655F75;--bordure:#DDD7E5;--controle:#83798F;--indigo:#514689;--indigoPresse:#40366F;--surIndigo:#fff;--focus:#514689}
input[type=email],input[type=password],input[name=invite]{width:min(100%,360px);min-height:44px;border:1px solid var(--controle);border-radius:8px;padding:8px 12px;font:inherit}
.reading form p label{display:block}
.slide{display:block;width:100%;height:auto;border:1px solid var(--bordure);border-radius:12px;background:white}select{font:inherit;padding:6px 12px;border-radius:8px;margin-left:6px}
.diagram{display:block;width:100%;max-height:65vh;background:#fff;border:1px solid var(--bordure);border-radius:12px;cursor:crosshair}.diagram-markers{pointer-events:none}