/* Blog Agent Training Club — DA « SaaS × Accréditation » (voir DESIGN.md). Feuille unique pour /blog et /blog/<article>. */
:root{
  --ground:#FAFAFB; --surface:#FFFFFF; --surface-2:#F4F6F8; --line:#E6E9EE; --line-strong:#D3D8E0;
  --ink:#0B1220; --ink-2:#475467; --ink-3:#5B6474;
  --brand:#22C55E; --brand-dk:#15803D; --brand-deep:#14532D; --brand-soft:#ECFDF3;
  --gold:#F5B301; --gold-text:#8A5A00; --gold-soft:#FFF7DB; --gold-line:#F5D77A;
  --black:#0B1220; --grid:rgba(11,18,32,.045);
  --shadow:0 1px 2px rgba(16,24,40,.05),0 12px 40px -16px rgba(16,24,40,.16);
  --shadow-lg:0 1px 2px rgba(16,24,40,.06),0 30px 70px -26px rgba(16,24,40,.32);
  --radius:20px; --f:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif; --f-cond:"Archivo","Arial Narrow",sans-serif;
  color-scheme:light;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--ground);color:var(--ink);font:400 16px/1.6 var(--f);-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{display:block;max-width:100%;height:auto}
a{color:inherit}
h1,h2,h3{margin:0;letter-spacing:-.025em;line-height:1.1}
p{margin:0}
.wrap{width:min(1180px,100% - 32px);margin-inline:auto}
.tnum{font-variant-numeric:tabular-nums}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
:focus-visible{outline:3px solid var(--brand);outline-offset:3px;border-radius:10px}

/* ---------- boutons (identiques à /offre) ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:48px;padding:0 22px;border-radius:14px;border:1px solid var(--line-strong);background:var(--surface);color:var(--ink);font:700 1rem/1 var(--f);text-decoration:none;cursor:pointer;transition:transform .18s cubic-bezier(.2,.8,.2,1),box-shadow .18s,background .18s,border-color .18s}
.btn:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:var(--brand)}
.btn.primary{border:0;color:#fff;background:linear-gradient(180deg,#1C9A4B,var(--brand-dk));box-shadow:inset 0 1px 0 rgba(255,255,255,.25),0 10px 24px -10px rgba(21,128,61,.7)}
.btn.primary:hover{background:linear-gradient(180deg,#17873F,var(--brand-deep))}
.btn.gold{border:0;color:#3D2A00;background:linear-gradient(180deg,#FFC933,var(--gold));box-shadow:inset 0 1px 0 rgba(255,255,255,.4),0 10px 24px -10px rgba(245,179,1,.7)}
.btn.on-dark{background:transparent;color:#fff;border-color:rgba(255,255,255,.3)}
.btn.on-dark:hover{border-color:#fff;box-shadow:none}
.btn.sm{min-height:44px;padding:0 16px;font-size:.95rem}
.btn .arr{transition:transform .2s}
.btn:hover .arr{transform:translateX(4px)}

/* ---------- en-tête ---------- */
.top{position:sticky;top:0;z-index:20;backdrop-filter:saturate(1.4) blur(14px);-webkit-backdrop-filter:saturate(1.4) blur(14px);background:color-mix(in srgb,var(--ground) 84%,transparent);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;gap:20px;height:68px}
.brand{display:flex;align-items:center;text-decoration:none}
.brand img{height:38px;width:auto}
.top nav{display:flex;gap:4px;margin-left:auto}
.top nav a{padding:10px 12px;border-radius:10px;text-decoration:none;color:var(--ink-2);font-weight:600;font-size:.95rem}
.top nav a:hover,.top nav a[aria-current]{color:var(--ink);background:var(--surface-2)}
@media (max-width:820px){.top nav{display:none}.top .btn{margin-left:auto}}
.progress{position:absolute;left:0;bottom:-1px;height:3px;width:100%;transform-origin:0 50%;transform:scaleX(0);background:linear-gradient(90deg,var(--brand-dk),var(--brand))}

/* ---------- index : hero ---------- */
.b-hero{padding:56px 0 8px;background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:32px 32px}
.kick{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border-radius:999px;border:1px solid var(--line-strong);background:var(--surface);font-size:.85rem;font-weight:600;color:var(--ink-2)}
.kick i{width:8px;height:8px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 4px rgba(34,197,94,.18)}
.b-hero h1{margin-top:18px;font-size:clamp(2.3rem,5vw,3.9rem);font-weight:900;max-width:15em;text-wrap:balance}
.b-hero h1 .g{color:var(--gold-text);font-family:var(--f-cond);font-stretch:75%;font-weight:900;letter-spacing:-.01em}
.b-hero .lead{margin-top:16px;font-size:1.15rem;color:var(--ink-2);max-width:40em}
.filters{display:flex;flex-wrap:wrap;gap:8px;margin:34px 0 0;padding:0;list-style:none}
.filters button{min-height:44px;padding:0 16px;border-radius:999px;border:1px solid var(--line-strong);background:var(--surface);color:var(--ink-2);font:600 .95rem var(--f);cursor:pointer;transition:background .15s,color .15s,border-color .15s}
.filters button:hover{border-color:var(--brand);color:var(--ink)}
.filters button[aria-pressed="true"]{background:var(--black);border-color:var(--black);color:#fff}
.filters small{margin-left:6px;opacity:.6;font-weight:700}

/* ---------- cartes ---------- */
.cat{display:inline-flex;align-items:center;gap:6px;font-size:.78rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--brand-dk)}
.cat::before{content:"";width:8px;height:8px;border-radius:2px;background:currentColor}
.cat.c-examen{color:#8A5A00}.cat.c-methode{color:#1D4ED8}.cat.c-plateforme{color:var(--ink)}
.feat{display:grid;grid-template-columns:1.25fr 1fr;margin-top:32px;overflow:hidden;border-radius:26px;background:var(--black);color:#fff;text-decoration:none;box-shadow:var(--shadow-lg);transition:transform .22s cubic-bezier(.2,.8,.2,1)}
.feat:hover{transform:translateY(-5px)}
.feat .ph{position:relative;min-height:360px;overflow:hidden}
.feat .ph img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .6s cubic-bezier(.2,.8,.2,1)}
.feat:hover .ph img{transform:scale(1.04)}
.feat .ph::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent 55%,var(--black))}
.feat .tx{display:flex;flex-direction:column;justify-content:center;gap:14px;padding:40px 40px 40px 12px}
.feat .cat{color:var(--gold)}
.feat h2{font-size:clamp(1.7rem,2.8vw,2.4rem);font-weight:850;text-wrap:balance}
.feat p{color:#C9D2E3;font-size:1.05rem}
.feat .go{display:inline-flex;align-items:center;gap:8px;font-weight:700;color:var(--gold)}
.feat .go span{transition:transform .2s}.feat:hover .go span{transform:translateX(4px)}
@media (max-width:860px){.feat{grid-template-columns:1fr}.feat .ph{min-height:0;aspect-ratio:16/9}.feat .ph::after{background:linear-gradient(180deg,transparent 50%,var(--black))}.feat .tx{padding:8px 22px 26px}}

.grid-a{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:22px}
@media (max-width:980px){.grid-a{grid-template-columns:repeat(2,1fr)}}
@media (max-width:620px){.grid-a{grid-template-columns:1fr}}
.acard{display:flex;flex-direction:column;overflow:hidden;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);text-decoration:none;transition:transform .22s cubic-bezier(.2,.8,.2,1),box-shadow .22s,border-color .22s}
.acard:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:var(--brand)}
.acard .ph{aspect-ratio:3/2;overflow:hidden;background:var(--surface-2)}
.acard .ph img{width:100%;height:100%;object-fit:cover;transition:transform .5s cubic-bezier(.2,.8,.2,1)}
.acard:hover .ph img{transform:scale(1.05)}
.acard .tx{display:flex;flex-direction:column;gap:10px;padding:18px 20px 20px;flex:1}
.acard h3{font-size:1.2rem;font-weight:800;line-height:1.2;text-wrap:balance}
.acard p{color:var(--ink-2);font-size:.95rem;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.acard .meta{margin-top:auto;padding-top:6px;display:flex;justify-content:space-between;align-items:center;color:var(--ink-3);font-size:.85rem}
.acard .meta b{color:var(--brand-dk);font-weight:700;transition:transform .2s}
.acard:hover .meta b{transform:translateX(4px)}
.acard[hidden]{display:none}

/* ---------- bandeau offre (fin de page, index) ---------- */
.band{position:relative;overflow:hidden;margin:72px 0 0;padding:44px;border-radius:26px;background:var(--black);color:#fff;display:grid;grid-template-columns:1.3fr 1fr;gap:32px;align-items:center}
.band::before{content:"";position:absolute;inset:0;background:radial-gradient(600px 300px at 0% 0%,rgba(34,197,94,.28),transparent 60%),radial-gradient(500px 300px at 100% 100%,rgba(245,179,1,.18),transparent 60%)}
.band>*{position:relative}
.band .label{color:var(--gold);font-size:.8rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase}
.band h2{margin-top:10px;font-size:clamp(1.7rem,3vw,2.4rem);font-weight:850;text-wrap:balance}
.band p{margin-top:10px;color:#C9D2E3}
.band .ctas{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.prices{display:grid;gap:10px}
.prices a{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:14px 16px;border-radius:14px;border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.05);color:#fff;text-decoration:none;transition:border-color .15s,background .15s}
.prices a:hover{border-color:var(--brand);background:rgba(34,197,94,.1)}
.prices a.best{border-color:var(--gold);background:rgba(245,179,1,.1)}
.prices span{font-weight:700}
.prices small{display:block;color:#98A4C2;font-weight:500;font-size:.82rem}
.prices b{font:900 1.7rem/1 var(--f-cond);font-stretch:80%;white-space:nowrap}
.prices s{font:600 .9rem var(--f);color:#98A4C2;margin-right:6px}
@media (max-width:860px){.band{grid-template-columns:1fr;padding:28px 22px}}

/* ---------- article ---------- */
.crumbs{padding:22px 0 0;font-size:.88rem;color:var(--ink-3)}
.crumbs ol{display:flex;flex-wrap:wrap;gap:6px;margin:0;padding:0;list-style:none}
.crumbs li+li::before{content:"/";margin-right:6px;color:var(--line-strong)}
.crumbs a{text-decoration:none;color:var(--ink-2)}.crumbs a:hover{color:var(--brand-dk)}
.a-head{padding:22px 0 0;max-width:860px}
.a-head h1{margin-top:14px;font-size:clamp(2rem,4.4vw,3.2rem);font-weight:900;text-wrap:balance}
.a-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px 18px;margin-top:18px;color:var(--ink-3);font-size:.92rem}
.a-meta .by{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:600}
.a-meta .by img{width:32px;height:32px;border-radius:9px}
.a-cover{margin:28px 0 0;border-radius:26px;overflow:hidden;box-shadow:var(--shadow-lg);aspect-ratio:21/9;background:var(--surface-2)}
.a-cover img{width:100%;height:100%;object-fit:cover}
@media (max-width:700px){.a-cover{aspect-ratio:16/10;border-radius:18px}}

.a-layout{display:grid;grid-template-columns:minmax(0,720px) 300px;justify-content:space-between;gap:56px;padding:40px 0 0}
@media (max-width:1040px){.a-layout{grid-template-columns:1fr}.a-side{display:none}}
.a-side{position:sticky;top:92px;align-self:start;display:grid;gap:18px}
.toc{padding:18px;border:1px solid var(--line);border-radius:18px;background:var(--surface)}
.toc b,.toc-m summary{font-size:.78rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3)}
.toc ol{list-style:none;margin:10px 0 0;padding:0;display:grid;gap:2px;counter-reset:t}
.toc li{counter-increment:t}
.toc a{display:grid;grid-template-columns:22px 1fr;gap:4px;padding:7px 8px;border-radius:9px;color:var(--ink-2);text-decoration:none;font-size:.9rem;line-height:1.35}
.toc a::before{content:counter(t,decimal-leading-zero);font:800 .78rem/1.6 var(--f-cond);color:var(--ink-3)}
.toc a:hover{background:var(--surface-2);color:var(--ink)}
.toc a.on{background:var(--brand-soft);color:var(--brand-deep);font-weight:600}
.toc a.on::before{color:var(--brand-dk)}
.toc-m{display:none;margin:0 0 28px;padding:14px 16px;border:1px solid var(--line);border-radius:16px;background:var(--surface)}
.toc-m summary{cursor:pointer;min-height:24px}
.toc-m .toc{padding:0;border:0;background:none}
@media (max-width:1040px){.toc-m{display:block}}
.mini{padding:20px;border-radius:18px;background:var(--black);color:#fff}
.mini small{display:block;color:var(--gold);font-size:.75rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase}
.mini b{display:block;margin-top:8px;font-size:1.1rem;line-height:1.25}
.mini p{margin-top:8px;color:#C9D2E3;font-size:.9rem}
.mini .btn{width:100%;margin-top:14px}
.mini a.t{display:block;margin-top:10px;text-align:center;color:#C9D2E3;font-size:.88rem}

/* corps de texte */
.prose{font-size:1.075rem;line-height:1.75;color:#1F2937}
.prose>*+*{margin-top:1.1em}
.prose .lead{font-size:1.25rem;line-height:1.6;color:var(--ink);font-weight:500}
.prose h2{margin-top:2.2em;font-size:clamp(1.5rem,2.6vw,1.9rem);font-weight:850;scroll-margin-top:92px;text-wrap:balance}
.prose h3{margin-top:1.7em;font-size:1.22rem;font-weight:800;scroll-margin-top:92px}
.prose h2+*,.prose h3+*{margin-top:.7em}
.prose a{color:var(--brand-dk);font-weight:600;text-decoration:underline;text-decoration-thickness:1.5px;text-underline-offset:3px}
.prose a:hover{color:var(--brand-deep)}
.prose strong{color:var(--ink)}
.prose ul,.prose ol{padding-left:1.3em}
.prose li+li{margin-top:.45em}
.prose li::marker{color:var(--brand-dk);font-weight:700}
.prose table{width:100%;border-collapse:separate;border-spacing:0;font-size:.95rem;line-height:1.5;border:1px solid var(--line);border-radius:14px;overflow:hidden;display:block;overflow-x:auto}
.prose th,.prose td{padding:11px 14px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}
.prose thead th{background:var(--black);color:#fff;font-weight:700;font-size:.88rem}
.prose tbody tr:nth-child(even) td{background:var(--surface-2)}
.prose tbody tr:last-child td{border-bottom:0}
.callout{padding:18px 20px;border-radius:16px;border:1px solid #BBF7D0;background:var(--brand-soft);border-left:4px solid var(--brand-dk)}
.callout p{font-size:1rem;line-height:1.65}
.callout p+p{margin-top:.6em}
.callout.gold{border-color:var(--gold-line);border-left-color:var(--gold);background:var(--gold-soft)}
.callout.gold strong{color:#3D2A00}
.callout.coach{background:var(--black);border-color:var(--black);border-left-color:var(--brand);color:#E5E9F2}
.callout.coach strong{color:var(--brand)}
.callout.coach a{color:var(--gold)}
.keyfigs{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1px;border-radius:18px;overflow:hidden;border:1px solid var(--line);background:var(--line);box-shadow:var(--shadow)}
.keyfigs>div{background:var(--surface);padding:18px 16px}
.keyfigs b{display:block;font:900 2.1rem/1 var(--f-cond);font-stretch:80%;letter-spacing:-.01em;color:var(--ink)}
.keyfigs span{display:block;margin-top:8px;color:var(--ink-2);font-size:.9rem;line-height:1.35}
.faq{display:grid;gap:10px}
.faq details{border:1px solid var(--line);border-radius:14px;background:var(--surface);transition:border-color .15s}
.faq details[open]{border-color:var(--brand)}
.faq summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;gap:16px;align-items:center;padding:16px 18px;font-weight:700;color:var(--ink);line-height:1.4}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";flex:none;display:grid;place-items:center;width:28px;height:28px;border-radius:8px;background:var(--surface-2);font-weight:700;transition:transform .2s}
.faq details[open] summary::after{transform:rotate(45deg);background:var(--brand-soft);color:var(--brand-dk)}
.faq details>*:not(summary){padding:0 18px 16px;color:var(--ink-2);font-size:1rem}

/* carte d'offre dans l'article */
.offer{position:relative;overflow:hidden;margin:2.2em 0!important;padding:26px;border-radius:22px;background:var(--black);color:#fff;display:grid;grid-template-columns:1fr auto;gap:20px 28px;align-items:center}
.offer::before{content:"";position:absolute;inset:0;background:radial-gradient(420px 220px at 0% 0%,rgba(34,197,94,.3),transparent 65%)}
.offer>*{position:relative}
.offer small{display:block;color:var(--gold);font-size:.75rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase}
.offer b.t{display:block;margin-top:8px;font-size:1.3rem;line-height:1.25;letter-spacing:-.015em}
.offer p{margin-top:8px;color:#C9D2E3;font-size:.95rem;line-height:1.55}
.offer .pr{text-align:right}
.offer .pr s{display:block;color:#98A4C2;font-size:.95rem}
.offer .pr strong{display:block;font:900 2.8rem/1 var(--f-cond);font-stretch:78%;color:var(--gold)}
.offer .pr em{display:block;margin-top:4px;font-style:normal;color:#C9D2E3;font-size:.85rem}
.offer .ctas{grid-column:1/-1;display:flex;flex-wrap:wrap;gap:10px}
.prose .offer a{text-decoration:none;font-weight:700}
.prose .offer .btn.primary{color:#fff}
.prose .offer .btn.on-dark{color:#fff}
@media (max-width:560px){.offer{grid-template-columns:1fr}.offer .pr{text-align:left}}

.share{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:40px;padding-top:22px;border-top:1px solid var(--line);color:var(--ink-3);font-size:.9rem}
.share a,.share button{display:inline-flex;align-items:center;min-height:40px;padding:0 14px;border-radius:10px;border:1px solid var(--line-strong);background:var(--surface);color:var(--ink-2);font:600 .9rem var(--f);text-decoration:none;cursor:pointer}
.share a:hover,.share button:hover{border-color:var(--brand);color:var(--ink)}

.more{padding:72px 0 0}
.more h2{font-size:clamp(1.6rem,3vw,2.2rem);font-weight:850}

/* ---------- pied de page ---------- */
footer{margin-top:80px;border-top:1px solid var(--line);padding:28px 0 40px;color:var(--ink-3);font-size:.88rem}
footer .wrap{display:flex;flex-wrap:wrap;gap:12px 28px;justify-content:space-between}
footer .f-legal{display:grid;gap:4px;max-width:44em}
footer nav{display:flex;flex-wrap:wrap;gap:6px 16px}
footer a{color:var(--ink-2);text-decoration:none}footer a:hover{color:var(--brand-dk)}

/* barre d'achat mobile */
.sticky{position:fixed;z-index:30;left:12px;right:12px;bottom:12px;display:none;align-items:center;justify-content:space-between;gap:12px;padding:10px 10px 10px 16px;border-radius:16px;background:var(--black);color:#fff;box-shadow:0 20px 40px -12px rgba(0,0,0,.5);transform:translateY(140%);transition:transform .3s cubic-bezier(.2,.8,.2,1)}
.sticky.on{transform:none}
.sticky span{font-size:.85rem;color:#C9D2E3;line-height:1.3}
.sticky span b{display:block;color:#fff;font-size:.95rem}
@media (max-width:820px){.sticky{display:flex}}

@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
@media print{.top,.a-side,.toc-m,.offer,.band,.more,.sticky,.share,footer{display:none!important}body{background:#fff}}