/* ============================================================
   Blog shau.fr (moteur shau-blog, thème « shau »).
   Mêmes jetons, en-tête, interrupteur de thème et pied de page que les landings de shau.fr.
============================================================ */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --bg:#151c2c;--bg-2:#192133;--panel:#1d2639;--panel-2:#222c41;
  --border:#2e3a52;--border-soft:#263147;
  --text:#eef2fb;--text-2:#c3cbdb;--text-3:#9ba6bb;
  --blue:#2f6bff;--link:#86a8ff;--btn:#2459e6;--btn-h:#1d4ed8;
  --tint:rgba(47,107,255,.14);--tint-2:rgba(47,107,255,.24);
  --ok:#36d399;--ok-bg:rgba(54,211,153,.14);--amber:#f0b429;--amber-bg:rgba(240,180,41,.13);--purple:#b28cf5;--purple-bg:rgba(178,140,245,.14);--danger:#ff8a8a;
  --shadow:0 20px 50px -24px rgba(0,0,0,.6);
  --radius:16px;--radius-lg:24px;--maxw:1180px;
  --font:'Inter','Segoe UI',system-ui,-apple-system,sans-serif;
}
[data-theme="light"]{
  --bg:#eef1f7;--bg-2:#e7ebf3;--panel:#ffffff;--panel-2:#f6f8fc;
  --border:#d8dfeb;--border-soft:#e4e9f2;
  --text:#0b1220;--text-2:#364155;--text-3:#545f74;
  --link:#1f55e0;--tint:rgba(47,107,255,.08);--tint-2:rgba(47,107,255,.16);
  --ok:#0f8a5f;--ok-bg:rgba(15,138,95,.1);--amber:#8a5700;--amber-bg:rgba(201,138,0,.1);--purple:#6d3fbf;--purple-bg:rgba(124,77,204,.09);--danger:#c42b2b;
  --shadow:0 22px 48px -26px rgba(15,30,70,.35);
}
html{scroll-behavior:smooth;scroll-padding-top:84px;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img,svg{display:block;max-width:100%}
a{color:var(--link)}
a:hover{text-decoration-thickness:2px}
:focus-visible{outline:3px solid var(--blue);outline-offset:3px;border-radius:6px}
main:focus{outline:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
@media (max-width:600px){.wrap{padding:0 16px}}
.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip{position:absolute;left:12px;top:-60px;z-index:100;background:var(--btn);color:#fff;padding:10px 16px;border-radius:10px;font-weight:700;text-decoration:none;transition:top .2s}
.skip:focus{top:12px}
.bg-field{position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:radial-gradient(900px 600px at 82% -4%,rgba(47,107,255,.14),transparent 60%),
             radial-gradient(700px 520px at -6% 30%,rgba(166,121,240,.07),transparent 55%)}

/* boutons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:48px;padding:12px 22px;border-radius:999px;
  font:700 15.5px/1.2 var(--font);text-decoration:none;border:1px solid transparent;cursor:pointer;transition:transform .2s,box-shadow .2s,background .2s,border-color .2s}
.btn-primary{background:var(--btn);color:#fff;box-shadow:0 12px 28px -12px rgba(36,89,230,.75)}
.btn-primary:hover{background:var(--btn-h);transform:translateY(-2px);box-shadow:0 18px 36px -14px rgba(36,89,230,.85)}
.btn-ghost{background:var(--panel);color:var(--text);border-color:var(--border)}
.btn-ghost:hover{border-color:var(--blue);transform:translateY(-2px)}
.btn-sm{min-height:42px;padding:9px 18px;font-size:14.5px}
@media (prefers-reduced-motion:reduce){.btn,.btn:hover{transition:none;transform:none}}

/* ---------------- EN-TÊTE ---------------- */
.top{position:sticky;top:0;z-index:50;backdrop-filter:saturate(1.4) blur(14px);-webkit-backdrop-filter:saturate(1.4) blur(14px);
  background:color-mix(in srgb,var(--bg) 82%,transparent);border-bottom:1px solid var(--border-soft)}
.top .wrap{display:flex;align-items:center;gap:16px;height:68px}
.logo{font-weight:800;letter-spacing:.5px;font-size:19px;display:inline-flex;align-items:center;gap:6px;color:var(--text);text-decoration:none}
.logo .dot{width:7px;height:7px;border-radius:50%;background:var(--blue)}
.b-brand{font-size:13px;font-weight:750;letter-spacing:.04em;text-transform:uppercase;color:var(--link);text-decoration:none;
  padding:4px 10px;border-radius:999px;background:var(--tint);border:1px solid var(--tint-2)}
.top nav{margin-left:auto}
.top nav ul{display:flex;gap:26px;list-style:none}
.top nav a{color:var(--text-2);text-decoration:none;font-size:14.5px;font-weight:600;padding:8px 0;position:relative}
.top nav a:hover,.top nav a[aria-current]{color:var(--text)}
.top nav a::after{content:"";position:absolute;left:0;right:0;bottom:2px;height:2px;background:var(--blue);transform:scaleX(0);transform-origin:left;transition:transform .25s}
.top nav a:hover::after,.top nav a[aria-current]::after{transform:scaleX(1)}
.top-right{display:flex;align-items:center;gap:12px}
.b-search-link{display:grid;place-items:center;width:40px;height:40px;border-radius:999px;color:var(--text-2);border:1px solid var(--border);background:var(--panel)}
.b-search-link svg{width:18px;height:18px}
.b-search-link:hover,.b-search-link[aria-current]{color:var(--text);border-color:var(--blue)}
@media (max-width:980px){.top nav{display:none}.top-right{margin-left:auto}}
@media (max-width:440px){.top .btn-sm .long{display:none}.b-brand{display:none}}

/* Interrupteur jour/nuit (repris des autres pages de shau.fr) */
.tt{--tt-accent:#4d82ff;position:relative;display:inline-flex;flex-shrink:0;align-items:center;width:52px;height:28px;padding:0;overflow:hidden;
  cursor:pointer;border-radius:9999px;border:1px solid var(--border);background-color:transparent;color:inherit;font:inherit;
  background-image:linear-gradient(120deg,color-mix(in srgb,var(--tt-accent) 12%,transparent),color-mix(in srgb,var(--tt-accent) 22%,transparent));
  transition:border-color .3s ease,box-shadow .2s ease}
.tt:hover{box-shadow:0 0 0 3px color-mix(in srgb,var(--tt-accent) 14%,transparent)}
.tt-thumb{position:absolute;top:50%;left:3px;display:grid;place-items:center;width:20px;height:20px;margin-top:-10px;border-radius:9999px;background:#fff;
  box-shadow:0 1px 3px rgb(5 7 13 / .25),0 0 0 1px var(--border);transition:transform .45s cubic-bezier(.34,1.56,.64,1),box-shadow .3s ease}
.tt-thumb::before{content:"";position:absolute;inset:0;border-radius:inherit;background-image:linear-gradient(135deg,#7b9cff,var(--tt-accent) 55%,#2a56d6);opacity:0;transition:opacity .3s ease}
.tt-sun,.tt-moon{position:absolute;z-index:1;width:13px;height:13px;transition:opacity .3s ease,transform .45s cubic-bezier(.34,1.56,.64,1)}
.tt-sun{color:#f5a30a}
.tt:hover .tt-sun{transform:rotate(45deg)}
.tt-moon{color:#fff;opacity:0;transform:rotate(-90deg) scale(.4)}
.tt-hint{position:absolute;right:7px;width:11px;height:11px;color:color-mix(in srgb,var(--tt-accent) 60%,transparent);transition:opacity .3s ease}
.tt-stars i{position:absolute;width:2px;height:2px;border-radius:9999px;background:#fff;opacity:0;transition:opacity .3s ease}
.tt-stars i:nth-child(1){left:8px;top:7px}
.tt-stars i:nth-child(2){left:15px;top:16px;animation-delay:.8s}
.tt-stars i:nth-child(3){left:21px;top:6px;width:1.5px;height:1.5px;animation-delay:1.6s}
@keyframes tt-scintille{0%,100%{opacity:.95;transform:scale(1)}50%{opacity:.3;transform:scale(.55)}}
html:not([data-theme="light"]) .tt{border-color:color-mix(in srgb,var(--tt-accent) 40%,transparent);background-image:linear-gradient(120deg,var(--bg),color-mix(in srgb,var(--tt-accent) 30%,var(--bg)))}
html:not([data-theme="light"]) .tt-thumb{transform:translateX(24px);box-shadow:0 0 10px color-mix(in srgb,var(--tt-accent) 70%,transparent),0 0 0 1px color-mix(in srgb,var(--tt-accent) 55%,transparent)}
html:not([data-theme="light"]) .tt-thumb::before{opacity:1}
html:not([data-theme="light"]) .tt-sun{opacity:0;transform:rotate(90deg) scale(.4)}
html:not([data-theme="light"]) .tt-moon{opacity:1;transform:none}
html:not([data-theme="light"]) .tt-hint{opacity:0}
html:not([data-theme="light"]) .tt-stars i{animation:tt-scintille 2.4s ease-in-out infinite}
@media (prefers-reduced-motion:reduce){.tt-thumb,.tt-thumb::before,.tt-sun,.tt-moon,.tt-hint{transition:none}html:not([data-theme="light"]) .tt-stars i{animation:none;opacity:.8}}

/* barre de lecture */
.b-progress{position:fixed;left:0;right:0;top:0;height:3px;z-index:60;pointer-events:none}
.b-progress span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--blue),var(--purple))}
body:not(.is-article) .b-progress{display:none}

/* ---------------- TITRES ---------------- */
.kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--link);margin-bottom:14px;text-decoration:none}
.kicker::before{content:"";width:18px;height:2px;background:currentColor;border-radius:2px}
a.kicker:hover{text-decoration:underline}
h1{font-size:clamp(32px,4.6vw,52px);line-height:1.08;letter-spacing:-.03em;font-weight:850;text-wrap:balance}
h2{font-size:clamp(25px,3vw,34px);line-height:1.18;letter-spacing:-.022em;font-weight:800;text-wrap:balance}
h3{font-size:19px;line-height:1.3;font-weight:750;letter-spacing:-.01em}
.crumbs{font-size:13.5px;color:var(--text-3);padding-top:26px;margin-bottom:22px}
.crumbs ol{display:flex;flex-wrap:wrap;gap:6px;list-style:none}
.crumbs li+li::before{content:"›";margin-right:6px;color:var(--text-3)}
.crumbs a{color:var(--text-3);text-decoration:none}
.crumbs a:hover{color:var(--text);text-decoration:underline}
.b-sec{padding-block:56px}
.b-sec-head{display:flex;align-items:end;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:26px}
.b-sec-head p{color:var(--text-2);max-width:640px;margin-top:8px}
.b-more{font-weight:700;font-size:15px;text-decoration:none;white-space:nowrap}
.b-more:hover{text-decoration:underline}

/* ---------------- ACCUEIL DU BLOG ---------------- */
.b-hero{padding-block:10px 34px}
.b-hero h1{max-width:900px;margin-bottom:16px}
.b-hero .b-intro{font-size:18.5px;color:var(--text-2);max-width:760px;text-wrap:pretty}
.b-searchbox{margin-top:26px;display:flex;gap:10px;max-width:640px;position:relative}
.b-searchbox input{flex:1;min-width:0;height:52px;padding:0 18px 0 46px;border-radius:999px;border:1px solid var(--border);background:var(--panel);
  color:var(--text);font:500 16px var(--font);box-shadow:var(--shadow)}
.b-searchbox input::placeholder{color:var(--text-3)}
.b-searchbox input:focus{outline:3px solid var(--blue);outline-offset:2px}
.b-searchbox svg{position:absolute;left:17px;top:16px;width:20px;height:20px;color:var(--text-3);pointer-events:none}
.b-searchbox .btn{height:52px}
@media (max-width:520px){.b-searchbox .btn{display:none}}
.b-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;list-style:none}
.b-chip{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:999px;background:var(--panel);border:1px solid var(--border);
  color:var(--text);font-size:14.5px;font-weight:650;text-decoration:none;transition:border-color .2s,transform .2s}
.b-chip:hover{border-color:var(--blue);transform:translateY(-1px)}
.b-chip[aria-current]{background:var(--tint);border-color:var(--blue)}
.b-chip small{font-size:12.5px;color:var(--text-3);font-weight:700;background:var(--panel-2);border-radius:999px;padding:1px 8px}
.b-live{margin-top:14px;max-width:760px}
.b-live[hidden]{display:none}
.b-live-list{list-style:none;display:grid;gap:8px;margin-top:10px}
.b-live-list a{display:block;padding:12px 16px;border-radius:12px;background:var(--panel);border:1px solid var(--border);text-decoration:none;color:var(--text)}
.b-live-list a:hover{border-color:var(--blue)}
.b-live-list b{display:block;font-size:15.5px}
.b-live-list span{display:block;font-size:13.5px;color:var(--text-3);margin-top:2px}
.b-live-msg{font-size:14.5px;color:var(--text-2)}

/* carte d'article */
.b-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;list-style:none}
@media (max-width:1000px){.b-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:640px){.b-grid{grid-template-columns:1fr}}
.b-card{position:relative;display:flex;flex-direction:column;gap:10px;height:100%;padding:24px;border-radius:var(--radius-lg);background:var(--panel);
  border:1px solid var(--border);transition:transform .25s,border-color .25s,box-shadow .25s}
.b-card:hover{transform:translateY(-3px);border-color:color-mix(in srgb,var(--blue) 55%,var(--border));box-shadow:var(--shadow)}
.b-card:focus-within{border-color:var(--blue)}
.b-card .b-cat{align-self:flex-start}
.b-card :is(h2,h3,h4){font-size:19.5px;line-height:1.28;letter-spacing:-.01em}
.b-card :is(h2,h3,h4) a{color:var(--text);text-decoration:none}
.b-card :is(h2,h3,h4) a::after{content:"";position:absolute;inset:0;border-radius:inherit}
.b-card :is(h2,h3,h4) a:focus-visible{outline:none}
.b-card :is(h2,h3,h4) a:focus-visible::after{outline:3px solid var(--blue);outline-offset:3px}
.b-card p{color:var(--text-2);font-size:15.5px}
.b-card .b-card-meta{margin-top:auto;padding-top:8px;font-size:13.5px;color:var(--text-3);display:flex;gap:8px;flex-wrap:wrap}
@media (prefers-reduced-motion:reduce){.b-card,.b-card:hover{transition:none;transform:none}}
.b-cat{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:750;letter-spacing:.03em;text-transform:uppercase;color:var(--link);
  background:var(--tint);border-radius:999px;padding:4px 10px;text-decoration:none;position:relative;z-index:1}
a.b-cat:hover{text-decoration:underline}

/* article à la une */
.b-feature{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);gap:0;border-radius:28px;overflow:hidden;background:var(--panel);
  border:1px solid var(--border);box-shadow:var(--shadow);position:relative}
.b-feature-body{padding:38px 40px;display:flex;flex-direction:column;gap:14px}
.b-feature h2{font-size:clamp(26px,3.2vw,36px)}
.b-feature h2 a{color:var(--text);text-decoration:none}
.b-feature h2 a::after{content:"";position:absolute;inset:0}
.b-feature p{color:var(--text-2);font-size:17px}
.b-feature-aside{padding:34px;background:linear-gradient(150deg,var(--tint-2),var(--purple-bg));display:flex;flex-direction:column;justify-content:center;gap:10px;border-left:1px solid var(--border)}
.b-feature-aside b{font-size:14px;letter-spacing:.04em;text-transform:uppercase;color:var(--text-2)}
.b-feature-aside ul{list-style:none;display:grid;gap:10px}
.b-feature-aside li{display:flex;gap:10px;font-size:15.5px;color:var(--text)}
.b-feature-aside li::before{content:"";flex:0 0 8px;height:8px;margin-top:8px;border-radius:50%;background:var(--blue)}
@media (max-width:860px){.b-feature{grid-template-columns:1fr}.b-feature-aside{border-left:0;border-top:1px solid var(--border)}.b-feature-body{padding:28px 24px}}

.b-themes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;list-style:none}
@media (max-width:1000px){.b-themes{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:640px){.b-themes{grid-template-columns:1fr}}
.b-theme{height:100%;display:flex;flex-direction:column;gap:10px;padding:24px;border-radius:var(--radius-lg);background:var(--panel);border:1px solid var(--border)}
.b-theme h3{font-size:20px}
.b-theme h3 a{color:var(--text);text-decoration:none}
.b-theme h3 a:hover{text-decoration:underline}
.b-theme > p{color:var(--text-2);font-size:15px}
.b-theme ul{list-style:none;display:grid;gap:2px;margin:4px 0 6px}
.b-theme li a{display:block;padding:8px 10px;margin:0 -10px;border-radius:10px;color:var(--text);text-decoration:none;font-weight:600;font-size:15.5px;line-height:1.4}
.b-theme li a:hover{background:var(--panel-2);color:var(--link)}
.b-theme .b-more{margin-top:auto;font-size:14.5px}

/* démonstration / méthode */
.b-demo{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:28px;align-items:start;padding:34px;border-radius:var(--radius-lg);
  background:var(--panel);border:1px dashed color-mix(in srgb,var(--blue) 45%,var(--border))}
.b-demo h2{font-size:clamp(22px,2.6vw,28px);margin-bottom:10px}
.b-demo p{color:var(--text-2)}
.b-demo ul{list-style:none;display:grid;gap:10px}
.b-demo li{display:flex;gap:10px;color:var(--text-2);font-size:15.5px}
.b-demo li::before{content:"✓";color:var(--ok);font-weight:800}
.b-demo .b-note{margin-top:14px;font-size:14px;color:var(--text-3)}
@media (max-width:860px){.b-demo{grid-template-columns:1fr;padding:26px 22px}}

/* ---------------- ARTICLE ---------------- */
.b-art-head{max-width:860px;padding-bottom:26px}
.b-art-head h1{margin:12px 0 16px}
.b-lede{font-size:19.5px;line-height:1.55;color:var(--text-2);text-wrap:pretty}
.b-meta{display:flex;flex-wrap:wrap;gap:6px 14px;margin-top:18px;font-size:14px;color:var(--text-3)}
.b-meta span{display:inline-flex;align-items:center;gap:6px}
.b-meta span + span::before{content:"·";margin-right:8px;color:var(--text-3)}
.b-meta a{color:var(--text-2)}
.b-art-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px;align-items:start}
.b-art-main{min-width:0;max-width:760px}
.b-art-side{position:sticky;top:92px;display:grid;gap:18px;order:2}
@media (max-width:1100px){.b-art-grid{grid-template-columns:1fr;gap:0}.b-art-side{position:static;order:0;margin-bottom:24px}.b-side-cta{display:none}}

.b-key{padding:24px 26px;border-radius:var(--radius);background:linear-gradient(135deg,var(--tint),var(--panel) 70%);border:1px solid var(--tint-2);margin-bottom:34px}
.b-key h2{font-size:15px;letter-spacing:.06em;text-transform:uppercase;color:var(--link);margin-bottom:12px}
.b-key ul{list-style:none;display:grid;gap:10px}
.b-key li{display:flex;gap:12px;font-size:16.5px;line-height:1.5}
.b-key li::before{content:"";flex:0 0 7px;height:7px;margin-top:9px;border-radius:2px;background:var(--blue);transform:rotate(45deg)}

.b-toc{border-radius:var(--radius);background:var(--panel);border:1px solid var(--border);padding:16px 18px}
.b-toc summary{cursor:pointer;font-weight:750;font-size:14.5px;list-style:none;display:flex;justify-content:space-between;align-items:center}
.b-toc summary::-webkit-details-marker{display:none}
.b-toc summary::after{content:"";width:9px;height:9px;border-right:2px solid var(--text-3);border-bottom:2px solid var(--text-3);transform:rotate(45deg);transition:transform .2s}
.b-toc[open] summary::after{transform:rotate(-135deg)}
.b-toc ol{list-style:none;margin-top:12px;display:grid;gap:2px;counter-reset:toc}
.b-toc li a{display:flex;gap:8px;padding:6px 8px;border-radius:8px;color:var(--text-2);text-decoration:none;font-size:14px;line-height:1.4}
.b-toc li a::before{counter-increment:toc;content:counter(toc);font-weight:750;color:var(--text-3);min-width:16px}
.b-toc li a:hover{background:var(--panel-2);color:var(--text)}
.b-toc li a[aria-current]{background:var(--tint);color:var(--text)}
.b-side-cta{border-radius:var(--radius);padding:20px;background:var(--panel);border:1px solid var(--border)}
.b-side-cta b{display:block;font-size:16px;margin-bottom:6px}
.b-side-cta p{font-size:14px;color:var(--text-2);margin-bottom:14px}
.b-side-cta .btn{width:100%}

/* texte de l'article */
.b-prose{font-size:17.5px;line-height:1.72;color:var(--text)}
.b-prose > * + *{margin-top:1.05em}
.b-prose h2{margin-top:2.1em;margin-bottom:-.15em;font-size:clamp(24px,2.7vw,30px)}
.b-prose h3{margin-top:1.7em;margin-bottom:-.35em;font-size:20.5px}
.b-prose h4{margin-top:1.4em;font-size:17.5px}
.b-prose p{text-wrap:pretty}
.b-prose ul,.b-prose ol{padding-left:1.3em;display:grid;gap:.45em}
.b-prose li::marker{color:var(--blue);font-weight:700}
.b-prose a{text-underline-offset:3px;text-decoration-thickness:1px}
.b-prose a:hover{text-decoration-thickness:2px}
.b-prose a[target="_blank"]::after{content:"↗";font-size:.8em;margin-left:2px;text-decoration:none;display:inline-block}
.b-prose strong{font-weight:750}
.b-prose code{font-size:.9em;background:var(--panel-2);border:1px solid var(--border-soft);border-radius:6px;padding:1px 6px}
.b-prose hr{border:0;border-top:1px solid var(--border);margin:2em 0}
.b-table{overflow-x:auto;border-radius:14px;border:1px solid var(--border);background:var(--panel)}
.b-table:focus-visible{outline:3px solid var(--blue)}
.b-table table{width:100%;border-collapse:collapse;font-size:15px;line-height:1.5;min-width:520px}
.b-table th,.b-table td{padding:12px 14px;text-align:left;vertical-align:top;border-bottom:1px solid var(--border-soft)}
.b-table thead th{background:var(--panel-2);font-size:13.5px;letter-spacing:.02em;color:var(--text-2);font-weight:750}
.b-table tbody th{font-weight:700}
.b-table tr:last-child > *{border-bottom:0}
.b-table .a-right{text-align:right}.b-table .a-center{text-align:center}
.b-quote{border-left:4px solid var(--blue);background:var(--panel);border-radius:0 14px 14px 0;padding:18px 22px}
.b-quote blockquote p{font-size:18px;font-weight:600;line-height:1.55}
@media (max-width:600px){.b-quote blockquote p{font-size:16.5px}.b-prose{font-size:17px}}
.b-quote figcaption{margin-top:8px;font-size:14px;color:var(--text-3)}
.b-box{border-radius:var(--radius);padding:18px 22px;border:1px solid var(--border);background:var(--panel)}
.b-box > * + *{margin-top:.7em}
.b-box p,.b-box li{font-size:16.5px}
.b-box ul,.b-box ol{padding-left:1.2em;display:grid;gap:.35em}
.b-box__t{font-weight:750;display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.b-box--info{border-color:var(--tint-2);background:linear-gradient(135deg,var(--tint),var(--panel) 75%)}
.b-box--warn{border-color:color-mix(in srgb,var(--amber) 40%,var(--border));background:linear-gradient(135deg,var(--amber-bg),var(--panel) 75%)}
.b-box--example{border-color:color-mix(in srgb,var(--purple) 40%,var(--border));background:linear-gradient(135deg,var(--purple-bg),var(--panel) 75%)}
.b-badge{display:inline-flex;font-size:11.5px;font-weight:800;letter-spacing:.05em;text-transform:uppercase;padding:3px 9px;border-radius:999px;
  color:var(--purple);background:var(--purple-bg);border:1px solid color-mix(in srgb,var(--purple) 35%,transparent)}
.b-fig{border-radius:var(--radius);border:1px solid var(--border);background:var(--panel);padding:18px 18px 12px}
.b-fig figcaption{font-weight:700;font-size:15.5px;display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-bottom:10px}
.b-chart{width:100%;height:auto;font-family:var(--font)}
.b-chart .lbl{fill:var(--text-2);font-size:13.5px;font-weight:600}
.b-chart .val{fill:var(--text);font-size:13.5px;font-weight:750}
.b-chart .bar{fill:var(--blue)}
.b-data{margin-top:8px;font-size:14px}
.b-data summary{cursor:pointer;color:var(--text-3)}
.b-data table{margin-top:8px;border-collapse:collapse;width:100%}
.b-data th,.b-data td{text-align:left;padding:6px 8px;border-bottom:1px solid var(--border-soft)}
.b-steps-wrap{border-radius:var(--radius);border:1px solid var(--border);background:var(--panel);padding:20px 22px}
.b-steps__t{font-weight:750;margin-bottom:14px}
.b-steps{list-style:none;padding:0!important;counter-reset:st;display:grid;gap:14px!important}
.b-steps li{counter-increment:st;display:grid;grid-template-columns:36px 1fr;column-gap:14px;position:relative}
.b-steps li::before{content:counter(st);grid-row:span 2;width:36px;height:36px;border-radius:50%;display:grid;place-items:center;
  background:var(--btn);color:#fff;font-weight:800;font-size:15px}
.b-steps li:not(:last-child)::after{content:"";position:absolute;left:17px;top:40px;bottom:-12px;width:2px;background:var(--border)}
.b-steps b{font-size:16.5px;line-height:1.35;padding-top:6px}
.b-steps span{color:var(--text-2);font-size:15.5px;line-height:1.55}

/* appels à l'action */
.b-cta{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:18px 26px;align-items:center;padding:24px 26px;border-radius:var(--radius-lg);
  background:linear-gradient(135deg,color-mix(in srgb,var(--btn) 12%,var(--panel)),var(--panel));border:1px solid color-mix(in srgb,var(--blue) 40%,var(--border));margin:2em 0}
.b-cta b{display:block;font-size:19px;line-height:1.3;margin-bottom:6px}
.b-cta p{font-size:15.5px;color:var(--text-2);line-height:1.55}
.b-cta-btns{display:flex;flex-direction:column;gap:10px}
.b-cta .btn{white-space:nowrap}
@media (max-width:700px){.b-cta{grid-template-columns:1fr}.b-cta-btns{flex-direction:row;flex-wrap:wrap}}
.b-final{padding:64px 0}
.b-final-box{border-radius:28px;padding:44px;display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);gap:30px;align-items:center;
  background:radial-gradient(600px 300px at 90% 0%,rgba(178,140,245,.28),transparent 60%),linear-gradient(135deg,#1d4ed8,#2459e6 55%,#3b6cf0);color:#fff;box-shadow:var(--shadow)}
.b-final-box h2{color:#fff;margin-bottom:10px}
.b-final-box p{color:rgba(255,255,255,.9);font-size:17px}
.b-final-box ul{list-style:none;display:grid;gap:8px;margin-top:16px}
.b-final-box li{display:flex;gap:10px;font-size:15.5px;color:rgba(255,255,255,.95)}
.b-final-box li::before{content:"✓";font-weight:800}
.b-final-btns{display:flex;flex-direction:column;gap:12px}
.b-final-box .btn-primary{background:#fff;color:#1d3fb8;box-shadow:0 14px 30px -12px rgba(0,0,0,.45)}
.b-final-box .btn-primary:hover{background:#eef2ff}
.b-final-box .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.b-final-box .btn-ghost:hover{border-color:#fff}
.b-final-box a:focus-visible{outline-color:#fff}
@media (max-width:860px){.b-final-box{grid-template-columns:1fr;padding:32px 24px}}

/* FAQ, sources, auteur */
.b-faq,.b-sources,.b-author{margin-top:52px}
.b-faq h2,.b-sources h2{margin-bottom:16px}
.b-faq details{border:1px solid var(--border);background:var(--panel);border-radius:14px;margin-top:10px}
.b-faq summary{cursor:pointer;list-style:none;padding:16px 50px 16px 20px;font-weight:700;font-size:17px;position:relative}
.b-faq summary::-webkit-details-marker{display:none}
.b-faq summary::after{content:"+";position:absolute;right:18px;top:12px;font-size:24px;font-weight:500;color:var(--link);transition:transform .2s}
.b-faq details[open] summary::after{transform:rotate(45deg)}
.b-faq .ans{padding:0 20px 18px;color:var(--text-2);font-size:16.5px}
.b-sources ol{padding-left:1.3em;display:grid;gap:8px;font-size:15px;color:var(--text-2)}
.b-sources a{overflow-wrap:anywhere}
.b-author{display:grid;grid-template-columns:56px 1fr;gap:16px;padding:22px;border-radius:var(--radius);background:var(--panel);border:1px solid var(--border)}
.b-avatar{width:56px;height:56px;border-radius:16px;display:grid;place-items:center;background:var(--btn);color:#fff;font-weight:850;letter-spacing:.5px}
.b-author b{font-size:16.5px}
.b-author p{font-size:15px;color:var(--text-2);margin-top:4px}
.b-author .b-method{font-size:13.5px;color:var(--text-3);margin-top:10px}
.b-updated{font-size:14px;color:var(--text-3);margin-top:28px}

/* catégorie, recherche */
.b-cat-head{padding-block:6px 30px}
.b-cat-head > *{max-width:820px}
.b-cat-head h1{margin-bottom:12px}
.b-cat-head p{font-size:18px;color:var(--text-2)}
.b-results{list-style:none;display:grid;gap:14px;margin-top:26px}
.b-results li[hidden]{display:none}
.b-results a{display:block;padding:20px 22px;border-radius:var(--radius);background:var(--panel);border:1px solid var(--border);text-decoration:none;color:var(--text)}
.b-results a:hover{border-color:var(--blue)}
.b-results b{display:block;font-size:18px;line-height:1.3}
.b-results span{display:block;color:var(--text-2);font-size:15px;margin-top:6px}
.b-results small{display:block;color:var(--text-3);font-size:13px;margin-top:8px}
.b-count{color:var(--text-3);font-size:14.5px;margin-top:14px}

/* ---------------- PIED DE PAGE ---------------- */
footer{border-top:1px solid var(--border-soft);padding:44px 0 36px;color:var(--text-3);font-size:14px;margin-top:20px}
.foot-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:32px;margin-bottom:28px}
@media (max-width:1000px){.foot-grid{grid-template-columns:1fr 1fr}}
@media (max-width:760px){.foot-grid{grid-template-columns:1fr}}
.foot-pitch{margin-top:10px;max-width:360px}
.foot-h{color:var(--text);font-size:14.5px;margin-bottom:12px;letter-spacing:0;font-weight:750}
footer ul{list-style:none;display:grid;gap:8px}
footer a{color:var(--text-2);text-decoration:none}
footer a:hover{color:var(--text);text-decoration:underline}
.foot-legal{border-top:1px solid var(--border-soft);padding-top:22px;display:grid;gap:8px;font-size:12.5px}
.foot-legal a{text-decoration:underline;text-underline-offset:2px}

/* barre d'action mobile */
.sticky-cta{position:fixed;left:12px;right:12px;bottom:12px;z-index:40;display:none;align-items:center;justify-content:space-between;gap:12px;padding:10px 10px 10px 18px;
  border-radius:18px;background:color-mix(in srgb,var(--panel) 94%,transparent);border:1px solid var(--border);box-shadow:0 18px 40px -18px rgba(10,20,50,.55);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);transform:translateY(140%);transition:transform .3s ease}
.sticky-cta.show{transform:none}
.sticky-cta small{display:block;font-size:12px;color:var(--text-3);font-weight:600}
.sticky-cta b{font-size:15px}
@media (max-width:760px){.sticky-cta{display:flex}body{padding-bottom:84px}}
@media (prefers-reduced-motion:reduce){.sticky-cta{transition:none}}
@media print{.top,.sticky-cta,.b-art-side,.b-final,footer,.b-related,.bg-field,.b-progress{display:none!important}body{background:#fff;color:#000}}