:root{
  --primary:#2563eb;--on-primary:#fff;--bg:#fff;--alt:#f5f7fb;--text:#172033;--muted:#566074;--border:#e2e6f0;
  --code-bg:#f5f7fb;--k:#7c3aed;--s:#0f7a57;--n:#b45309;--c:#6b7488;--focus:#2563eb;--shadow:0 8px 24px -8px #13193440;
  --font:Inter,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;--mono:ui-monospace,"Cascadia Code",Consolas,Menlo,monospace;
  --top:60px;color-scheme:light;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --primary:#7aa2ff;--on-primary:#101a33;--bg:#0e1524;--alt:#161f33;--text:#f3f4f6;--muted:#b3bccb;--border:#2a3550;
  --code-bg:#121b2e;--k:#c4a1ff;--s:#55d6a0;--n:#f6c56b;--c:#8c97ad;--focus:#9bb8ff;--shadow:0 8px 24px -8px #000a;color-scheme:dark}}
:root[data-theme="dark"]{
  --primary:#7aa2ff;--on-primary:#101a33;--bg:#0e1524;--alt:#161f33;--text:#f3f4f6;--muted:#b3bccb;--border:#2a3550;
  --code-bg:#121b2e;--k:#c4a1ff;--s:#55d6a0;--n:#f6c56b;--c:#8c97ad;--focus:#9bb8ff;--shadow:0 8px 24px -8px #000a;color-scheme:dark}

*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--top) + 16px)}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.65 var(--font);-webkit-text-size-adjust:100%}
a{color:var(--primary);text-underline-offset:3px}
:focus-visible{outline:2px solid var(--focus);outline-offset:2px;border-radius:4px}
.skip{position:absolute;left:-999px;top:8px;background:var(--primary);color:var(--on-primary);padding:8px 12px;border-radius:8px;z-index:100}
.skip:focus{left:8px}

/* Barre du haut */
.top{position:sticky;top:0;z-index:30;height:var(--top);display:flex;align-items:center;gap:16px;padding:0 20px;
  background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--text);font-weight:700;letter-spacing:.02em}
.brand img{border-radius:7px}
.brand em{font-style:normal;font-weight:500;color:var(--muted)}
.tabs{display:flex;gap:2px;margin-left:8px}
.tabs a{padding:8px 12px;border-radius:8px;color:var(--muted);text-decoration:none;font-size:15px;font-weight:500}
.tabs a:hover{background:var(--alt);color:var(--text)}
.tabs a[aria-current]{color:var(--primary);background:color-mix(in srgb,var(--primary) 10%,transparent)}
.search{margin-left:auto;position:relative;width:min(300px,34vw)}
.search input{width:100%;height:38px;padding:0 12px;border:1px solid var(--border);border-radius:10px;background:var(--alt);color:var(--text);font:inherit;font-size:14px}
.search input::placeholder{color:var(--muted)}
#results{position:absolute;right:0;top:44px;width:min(440px,92vw);max-height:70vh;overflow:auto;background:var(--bg);border:1px solid var(--border);border-radius:12px;box-shadow:var(--shadow);padding:6px}
#results a{display:block;padding:9px 12px;border-radius:8px;text-decoration:none;color:var(--text)}
#results a:hover,#results a.on{background:var(--alt)}
#results b{display:block;font-size:14px}
#results small{display:block;color:var(--muted);font-size:12.5px;line-height:1.4;margin-top:2px}
#results .none{padding:12px;color:var(--muted);font-size:14px}
.icon-btn{width:38px;height:38px;border:1px solid var(--border);background:var(--bg);color:var(--text);border-radius:10px;font-size:18px;cursor:pointer}
.icon-btn:hover{background:var(--alt)}
.menu-btn{display:none}

/* Structure */
.shell{display:grid;grid-template-columns:268px minmax(0,1fr) 224px;max-width:1360px;margin:0 auto}
.side{position:sticky;top:var(--top);align-self:start;height:calc(100vh - var(--top));overflow:auto;border-right:1px solid var(--border)}
.side-in{padding:24px 16px 40px}
.grp{font-size:12px;font-weight:700;letter-spacing:.07em;text-transform:uppercase;color:var(--muted);margin:20px 10px 6px}
.grp.sec{margin-top:0;color:var(--primary)}
.side a{display:block;padding:7px 10px;border-radius:8px;color:var(--text);text-decoration:none;font-size:15px;line-height:1.35}
.side a:hover{background:var(--alt)}
.side a[aria-current]{background:color-mix(in srgb,var(--primary) 12%,transparent);color:var(--primary);font-weight:600}
.mob{display:none}
main{min-width:0}
.doc{padding:40px clamp(20px,4vw,56px) 64px;max-width:860px}
.crumb{font-size:13px;font-weight:700;letter-spacing:.07em;text-transform:uppercase;color:var(--primary);margin-bottom:8px}
.toc{position:sticky;top:var(--top);align-self:start;max-height:calc(100vh - var(--top));overflow:auto;padding:40px 16px 40px 0;font-size:14px}
.toc .grp{margin:0 0 8px}
.toc a{display:block;padding:4px 0 4px 12px;color:var(--muted);text-decoration:none;border-left:2px solid var(--border);line-height:1.4}
.toc a.l3{padding-left:24px}
.toc a:hover{color:var(--text)}
.toc a.on{color:var(--primary);border-left-color:var(--primary);font-weight:600}

/* Contenu */
.doc h1{font-size:clamp(1.9rem,3.2vw,2.5rem);line-height:1.2;margin:0 0 20px;letter-spacing:-.02em}
.doc h2{font-size:1.5rem;line-height:1.3;margin:2.4em 0 .6em;padding-top:.6em;border-top:1px solid var(--border);letter-spacing:-.01em}
.doc h3{font-size:1.15rem;margin:1.8em 0 .5em}
.doc h4{margin:1.5em 0 .4em}
.anchor{margin-left:8px;color:var(--muted);text-decoration:none;opacity:0;font-weight:400}
h2:hover .anchor,h3:hover .anchor,.anchor:focus{opacity:1}
.doc p,.doc li{max-width:72ch}
.doc ul,.doc ol{padding-left:1.4em}
.doc li{margin:.3em 0}
.doc code{font:.88em var(--mono);background:var(--code-bg);border:1px solid var(--border);padding:.12em .38em;border-radius:6px;overflow-wrap:anywhere}
.code{position:relative;margin:1.1em 0}
.code pre{margin:0;padding:16px 18px;background:var(--code-bg);border:1px solid var(--border);border-radius:12px;overflow:auto;line-height:1.55;tab-size:2}
.code pre code{background:none;border:0;padding:0;font-size:14px;overflow-wrap:normal}
.code pre::before{content:attr(data-lang);position:absolute;left:14px;top:-9px;font:600 11px var(--font);letter-spacing:.05em;text-transform:uppercase;color:var(--muted);background:var(--bg);padding:0 6px;border-radius:4px}
.copy{position:absolute;right:10px;top:10px;font:600 12px var(--font);border:1px solid var(--border);background:var(--bg);color:var(--muted);border-radius:8px;padding:4px 10px;cursor:pointer;opacity:0;transition:opacity .15s}
.code:hover .copy,.copy:focus-visible{opacity:1}
@media (hover:none){.copy{opacity:1}}
.tk-k{color:var(--k);font-weight:600}.tk-s{color:var(--s)}.tk-n{color:var(--n)}.tk-c{color:var(--c);font-style:italic}
blockquote{margin:1.2em 0;padding:2px 18px;border-left:4px solid var(--primary);background:color-mix(in srgb,var(--primary) 7%,transparent);border-radius:0 10px 10px 0}
blockquote p{margin:.7em 0}
.table-wrap{overflow-x:auto;margin:1.2em 0;border:1px solid var(--border);border-radius:12px}
table{border-collapse:collapse;width:100%;font-size:15px}
th,td{text-align:left;padding:10px 14px;vertical-align:top;border-bottom:1px solid var(--border)}
th{background:var(--alt);font-size:13px;letter-spacing:.03em;white-space:nowrap}
tr:last-child td{border-bottom:0}
td code{white-space:normal}
hr{border:0;border-top:1px solid var(--border);margin:2em 0}
.pn{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:56px}
.pn a{display:block;padding:14px 18px;border:1px solid var(--border);border-radius:12px;text-decoration:none;color:var(--text);font-weight:600}
.pn a:hover{border-color:var(--primary)}
.pn small{display:block;color:var(--muted);font-weight:500;font-size:13px}
.pn .next{text-align:right;grid-column:2}
.foot{border-top:1px solid var(--border);padding:24px 20px;text-align:center;color:var(--muted);font-size:14px}

/* Accueil */
.home{max-width:1080px;margin:0 auto;padding:0 20px 56px}
.hero{text-align:center;padding:72px 0 40px}
.hero img{border-radius:16px;box-shadow:var(--shadow)}
.hero h1{font-size:clamp(2rem,5vw,3.2rem);line-height:1.15;letter-spacing:-.025em;margin:20px 0 12px}
.lead{max-width:640px;margin:0 auto;color:var(--muted);font-size:1.15rem}
.cta{display:flex;justify-content:center;gap:12px;margin-top:28px;flex-wrap:wrap}
.btn{display:inline-block;padding:11px 20px;border-radius:10px;border:1px solid var(--border);text-decoration:none;color:var(--text);font-weight:600}
.btn:hover{border-color:var(--primary)}
.btn.primary{background:var(--primary);color:var(--on-primary);border-color:var(--primary)}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px;margin:24px 0 56px}
.card{display:flex;flex-direction:column;gap:6px;padding:24px;border:1px solid var(--border);border-radius:16px;background:var(--alt);text-decoration:none;color:var(--text);transition:transform .2s,border-color .2s,box-shadow .2s}
.card:hover{transform:translateY(-3px);border-color:var(--primary);box-shadow:var(--shadow)}
.card .tag{align-self:flex-start;font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--primary);background:color-mix(in srgb,var(--primary) 12%,transparent);padding:3px 10px;border-radius:999px}
.card h3{margin:8px 0 0;font-size:1.3rem}
.card p{margin:0;color:var(--muted);flex:1}
.card .go{margin-top:10px;color:var(--primary);font-weight:600}
.try{display:grid;grid-template-columns:1fr 1.1fr;gap:32px;align-items:center;margin:16px 0 56px}
.try h2,.steps h2{margin:0 0 8px;font-size:1.6rem}
.try p{color:var(--muted)}
.steps ol{padding-left:1.3em;max-width:70ch}
.steps li{margin:.7em 0}

/* Mobile / tablette */
@media (max-width:1180px){.shell{grid-template-columns:268px minmax(0,1fr)}.toc{display:none}}
@media (max-width:1000px){
  .tabs{display:none}
  .menu-btn{display:block}
  .search{width:auto;flex:1}
  .top{gap:10px;padding:0 12px}
  .brand em{display:none}
  .shell{display:block}
  .side{position:fixed;inset:var(--top) 0 0 0;height:auto;z-index:25;background:var(--bg);transform:translateX(-100%);transition:transform .2s;border:0;width:min(320px,88vw);border-right:1px solid var(--border)}
  body.nav-open .side{transform:none;box-shadow:var(--shadow)}
  .mob{display:block;margin-top:16px;border-top:1px solid var(--border)}
  .doc{padding:28px 16px 48px}
  .try{grid-template-columns:1fr}
  .hero{padding-top:44px}
  #results{position:fixed;left:12px;right:12px;top:calc(var(--top) + 4px);width:auto}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
@media print{.top,.side,.toc,.pn,.copy,.foot{display:none}.shell{display:block}}

/* Formation / WhatsApp */
.btn.wa{background:#128c4a;color:#fff;border-color:#128c4a}
.btn.wa:hover{background:#0e7a40;border-color:#0e7a40}
.doc a.btn.wa{text-decoration:none;margin:.4em 0}
.train{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;padding:28px 32px;margin:0 0 56px;border-radius:16px;background:color-mix(in srgb,var(--primary) 9%,var(--alt));border:1px solid var(--border)}
.train h2{margin:0 0 4px;font-size:1.4rem}
.train p{margin:0;color:var(--muted)}
@media (max-width:1000px){.train{padding:22px 18px}.train .btn{width:100%;text-align:center}}
.doc a.btn{text-decoration:none;margin:.4em 0}
.tabs a{padding:8px 10px;font-size:14.5px;white-space:nowrap}
@media (max-width:1100px){.search{width:min(220px,22vw)}}

/* Pourquoi BERKIOS */
.why{margin:8px 0 56px;padding:40px clamp(20px,4vw,44px);border-radius:20px;background:linear-gradient(135deg,color-mix(in srgb,var(--primary) 12%,var(--alt)),var(--alt));border:1px solid var(--border)}
.eyebrow{font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--primary)}
.why h2{margin:8px 0 24px;font-size:clamp(1.5rem,3.2vw,2.2rem);line-height:1.2;letter-spacing:-.02em;max-width:22ch}
.why-grid{display:grid;grid-template-columns:1.3fr 1fr;gap:36px;align-items:start}
.why-text p{margin:0 0 14px;max-width:60ch;font-size:1.05rem}
.why-points{list-style:none;margin:0;padding:0;display:grid;gap:14px}
.why-points li{display:flex;gap:14px;align-items:center;padding:16px 18px;background:var(--bg);border:1px solid var(--border);border-radius:14px}
.why-points b{flex:none;width:36px;height:36px;border-radius:50%;display:grid;place-items:center;background:var(--primary);color:var(--on-primary)}
@media (max-width:860px){.why-grid{grid-template-columns:1fr}}

/* Galerie */
.gallery{margin:20px 0}
.gal-tools{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-bottom:12px}
.gal-tools input,.gal-tools select{height:40px;padding:0 12px;border:1px solid var(--border);border-radius:10px;background:var(--alt);color:var(--text);font:inherit;font-size:14px}
.gal-tools input{flex:1 1 200px;min-width:0}
.gal-chips{display:flex;gap:6px;flex-wrap:wrap}
.chip{height:40px;padding:0 14px;border:1px solid var(--border);border-radius:999px;background:var(--bg);color:var(--text);font:inherit;font-size:14px;font-weight:600;cursor:pointer}
.chip:hover{border-color:var(--primary)}
.chip.on{background:var(--primary);border-color:var(--primary);color:var(--on-primary)}
.gal-status{color:var(--muted);font-size:14px;margin:8px 0 16px}
.gal-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}
.gal-card{display:flex;flex-direction:column;padding:20px;border:1px solid var(--border);border-radius:14px;background:var(--alt)}
.gal-card h3{margin:10px 0 6px;font-size:1.15rem}
.gal-top{display:flex;gap:8px;flex-wrap:wrap}
.gal-kind,.gal-level{font-size:12px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;padding:3px 10px;border-radius:999px}
.gal-kind{background:color-mix(in srgb,var(--primary) 14%,transparent);color:var(--primary)}
.gal-kind.k-core{background:color-mix(in srgb,var(--k) 16%,transparent);color:var(--k)}
.gal-kind.k-code{background:color-mix(in srgb,var(--s) 16%,transparent);color:var(--s)}
.gal-level{border:1px solid var(--border);color:var(--muted);font-weight:600}
.gal-sum{margin:0 0 10px;color:var(--muted);font-size:15px;flex:1}
.gal-tags{display:flex;flex-wrap:wrap;gap:6px;margin:0 0 14px}
.gal-tags span{font-size:12px;color:var(--muted);background:var(--bg);border:1px solid var(--border);border-radius:6px;padding:1px 8px}
.gal-act{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.gal-act .btn{padding:8px 14px;font-size:14px;text-decoration:none}
.gal-soon{font-size:13px;color:var(--muted)}
.gal-empty{grid-column:1/-1;color:var(--muted)}
.dl-box{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin:18px 0;padding:14px 18px;border:1px solid var(--border);border-radius:14px;background:color-mix(in srgb,var(--primary) 7%,var(--alt))}
.dl-box .btn{margin:0!important}
.dl-note{font-size:14px;color:var(--muted)}

.anchor::before{content:"#"}
.md-link{margin-top:28px;font-size:13px;color:var(--muted)}
.md-link a{color:var(--muted)}