/* ===========================================================
   RelaisIA — Blog / Articles
   Réutilise les variables de /assets/site.css (brand)
   =========================================================== */

/* reading progress bar */
.read-bar{position:fixed;top:0;left:0;height:3px;width:0;background:linear-gradient(90deg,var(--red-d),var(--red));z-index:200;box-shadow:0 0 12px rgba(220,38,38,.5);transition:width .1s linear}

/* generic wrap */
.blog-main{padding-top:5.5rem}

/* ---------- breadcrumb ---------- */
.crumbs{max-width:1100px;margin:0 auto;padding:1.4rem var(--pad) 0;font-family:var(--mono);font-size:.72rem;letter-spacing:.04em;color:var(--muted);display:flex;gap:.5rem;flex-wrap:wrap}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--red)}
.crumbs .sep{color:var(--light)}
.crumbs .cur{color:var(--text)}

/* ---------- article hero ---------- */
.art-hero{max-width:780px;margin:0 auto;padding:2rem clamp(1.3rem,5vw,2.5rem) 1.4rem;text-align:left}
.art-cat{display:inline-flex;align-items:center;gap:.55rem;font-family:var(--mono);font-size:.7rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--red-d);background:var(--red-l);border:1px solid rgba(220,38,38,.2);padding:.4rem .85rem;border-radius:100px;margin-bottom:1.5rem}
.art-cat .dot{width:7px;height:7px;border-radius:50%;background:var(--red);box-shadow:0 0 10px rgba(220,38,38,.6)}
.art-h1{font-family:var(--head);font-weight:400;text-transform:uppercase;line-height:1.02;letter-spacing:.005em;font-size:clamp(2.4rem,5.2vw,4.2rem);color:var(--text);margin:0}
.art-h1 em{font-style:normal;color:var(--red)}
.art-dek{font-size:clamp(1.1rem,1.7vw,1.4rem);line-height:1.5;color:var(--muted);margin-top:1.3rem;max-width:60ch}
.art-meta{display:flex;align-items:center;gap:1.1rem;margin-top:1.8rem;flex-wrap:wrap;font-family:var(--mono);font-size:.74rem;letter-spacing:.04em;color:var(--muted)}
.art-meta .who{display:flex;align-items:center;gap:.55rem;color:var(--text);font-weight:500}
.art-meta .av{width:26px;height:26px;border-radius:50%;background:linear-gradient(150deg,#E8332C,#B91C1C);display:flex;align-items:center;justify-content:center}
.art-meta .av svg{width:14px;height:14px;color:#fff}
.art-meta .md{display:flex;align-items:center;gap:.45rem}
.art-meta .mdot{width:4px;height:4px;border-radius:50%;background:var(--border2)}

/* cover band */
.art-cover{max-width:1100px;margin:1.6rem auto 0;height:clamp(180px,30vw,360px);border-radius:24px;overflow:hidden;position:relative;background:linear-gradient(140deg,#16120E 0%,#241712 60%,#3a1614 100%);box-shadow:0 30px 70px -36px rgba(20,16,9,.55)}
.art-cover .grid{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:34px 34px;-webkit-mask-image:radial-gradient(circle at 80% 0%,#000,transparent 75%);mask-image:radial-gradient(circle at 80% 0%,#000,transparent 75%)}
.art-cover .gl{position:absolute;width:30rem;height:30rem;border-radius:50%;top:-12rem;right:-8rem;background:radial-gradient(circle,rgba(220,38,38,.45),transparent 65%);filter:blur(10px)}
.art-cover .ast-deco{position:absolute;left:6%;bottom:-3rem;width:13rem;height:13rem;color:rgba(220,38,38,.5);transform:rotate(-12deg)}
.art-cover .cv-tag{position:absolute;left:2rem;bottom:1.6rem;font-family:var(--mono);font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:rgba(255,255,255,.75);display:flex;align-items:center;gap:.6rem}
.art-cover .cv-tag b{color:#fff;font-weight:600}

/* ---------- layout : toc + content ---------- */
/* content centré sur la page ; la TDM vit dans la marge gauche sans décaler le texte */
.art-layout{max-width:1220px;margin:2.6rem auto 0;padding:0 clamp(1.3rem,5vw,2.5rem);display:grid;grid-template-columns:1fr minmax(0,720px) 1fr;align-items:start}
.toc{grid-column:1;justify-self:end;width:190px;padding-right:1.6rem;position:sticky;top:6rem;align-self:start}
.toc .toc-head{font-family:var(--mono);font-size:.66rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--light);margin-bottom:.9rem;padding-left:.9rem}
.toc ol{list-style:none;border-left:1px solid var(--border);counter-reset:t}
.toc li{counter-increment:t}
.toc a{display:block;padding:.4rem 0 .4rem .9rem;margin-left:-1px;border-left:2px solid transparent;font-size:.82rem;line-height:1.3;color:var(--muted);transition:color .15s,border-color .15s}
.toc a::before{content:counter(t,decimal-leading-zero);font-family:var(--mono);font-size:.66rem;color:var(--light);margin-right:.5rem}
.toc a:hover{color:var(--text)}
.toc a.active{color:var(--red);border-left-color:var(--red);font-weight:600}
.toc a.active::before{color:var(--red)}

/* ---------- article content typography ---------- */
.art-content{grid-column:2;max-width:720px;margin:0 auto;counter-reset:sec}
.art-content > p{font-size:1.2rem;line-height:1.8;color:#24201A;margin:1.25rem 0}
.art-content > p:first-of-type{font-size:1.3rem;line-height:1.72;color:#181410}
.art-content a.ln{color:var(--red-d);text-decoration:underline;text-decoration-thickness:1.5px;text-underline-offset:2px;font-weight:500}
.art-content a.ln:hover{color:var(--red)}
.art-content strong{font-weight:700;color:var(--text)}
.art-content em{font-style:italic}

.art-content h2{font-family:var(--head);font-weight:400;text-transform:uppercase;letter-spacing:.005em;line-height:1.08;font-size:clamp(1.95rem,3.3vw,2.7rem);color:var(--text);margin:3.4rem 0 1.1rem;scroll-margin-top:6rem;display:flex;align-items:baseline;gap:.9rem}
.art-content h2::before{counter-increment:sec;content:counter(sec,decimal-leading-zero);font-family:var(--mono);font-size:.9rem;font-weight:600;color:var(--red);-webkit-text-fill-color:var(--red);letter-spacing:0;flex:0 0 auto;transform:translateY(-.15em)}
.art-content h2.nonum::before{content:none}
.art-content h3{font-family:var(--body);font-weight:700;font-size:1.4rem;color:var(--text);margin:2.1rem 0 .7rem;letter-spacing:-.01em;scroll-margin-top:6rem}
.art-content h4{font-weight:700;font-size:1.05rem;color:var(--text);margin:1.5rem 0 .5rem}

.art-content ul,.art-content ol{margin:1rem 0 1.3rem;padding-left:0}
.art-content ul li,.art-content ol li{list-style:none;position:relative;padding-left:1.7rem;margin:.6rem 0;font-size:1.13rem;line-height:1.7;color:#24201A}
.art-content ul li::before{content:"";position:absolute;left:.2rem;top:.7rem;width:7px;height:7px;border-radius:50%;background:var(--red);box-shadow:0 0 8px rgba(220,38,38,.4)}
.art-content ol{counter-reset:li}
.art-content ol li{counter-increment:li}
.art-content ol li::before{content:counter(li);position:absolute;left:0;top:.05rem;width:1.25rem;height:1.25rem;font-family:var(--mono);font-size:.7rem;font-weight:600;color:#fff;background:var(--red);border-radius:6px;display:flex;align-items:center;justify-content:center}
.art-content li strong{color:var(--text)}

/* inline code + kbd */
.art-content code{font-family:var(--mono);font-size:.86em;background:var(--off);border:1px solid var(--border);border-radius:6px;padding:.08rem .4rem;color:#7a1f1c}
.kbd{font-family:var(--mono);font-size:.8rem;background:#fff;border:1px solid var(--border2);border-radius:6px;padding:.12rem .45rem;color:var(--text);box-shadow:0 1px 0 var(--border2)}

/* ---------- terminal code block ---------- */
.codeblock{font-family:var(--mono);font-size:.84rem;line-height:1.7;background:#16120E;color:#E9E4D9;border-radius:14px;padding:1.3rem 1.4rem;border:1px solid #2C2620;box-shadow:0 26px 60px -30px rgba(0,0,0,.6);overflow:auto;margin:1.6rem 0}
.codeblock .win{display:flex;gap:.4rem;margin-bottom:.9rem}
.codeblock .win i{width:10px;height:10px;border-radius:50%}
.codeblock .win i:nth-child(1){background:#E0564E}.codeblock .win i:nth-child(2){background:#E0B24E}.codeblock .win i:nth-child(3){background:#5FB874}
.codeblock pre{margin:0;white-space:pre-wrap;word-break:break-word}
.codeblock .c{color:#867F72}.codeblock .r{color:#FF8A82}.codeblock .g{color:#8AD897}.codeblock .y{color:#F2CE78}.codeblock .b{color:#86BCE6}.codeblock .p{color:#fff}.codeblock .prompt{color:#FF8A82;font-weight:600}

/* ---------- callouts ---------- */
.callout{margin:1.7rem 0;padding:1.2rem 1.35rem 1.2rem 1.5rem;border-radius:14px;background:var(--surface);border:1px solid var(--border);border-left:3px solid var(--red);box-shadow:0 12px 30px -20px rgba(20,16,9,.3)}
.callout .ct{display:flex;align-items:center;gap:.5rem;font-family:var(--mono);font-size:.66rem;font-weight:600;letter-spacing:.13em;text-transform:uppercase;color:var(--red-d);margin-bottom:.5rem}
.callout p{margin:0;font-size:1rem;line-height:1.6;color:#2A2620}
.callout.tip{border-left-color:#1f9d57}.callout.tip .ct{color:#157a42}
.callout.warn{border-left-color:#d9892a}.callout.warn .ct{color:#b06d18}

/* ---------- content cards ---------- */
.cardgrid{display:grid;gap:.9rem;margin:1.7rem 0}
.cardgrid.c2{grid-template-columns:1fr 1fr}
.cardgrid.c3{grid-template-columns:repeat(3,1fr)}
.ccard{position:relative;background:#fff;border:1px solid var(--border);border-radius:16px;padding:1.3rem 1.25rem;box-shadow:0 1px 2px rgba(20,16,9,.04),0 12px 26px -14px rgba(20,16,9,.2)}
.ccard::after{content:"";position:absolute;top:0;left:1.25rem;right:1.25rem;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--red),transparent);opacity:.5}
.ccard .ico{font-size:1.4rem;display:block;margin-bottom:.5rem}
.ccard .k{font-family:var(--mono);font-size:.58rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--red-d);display:block;margin-bottom:.45rem}
.ccard h4{font-size:1.04rem;font-weight:700;color:var(--text);margin:0 0 .3rem;line-height:1.2}
.ccard p{font-size:.92rem;line-height:1.45;color:var(--muted);margin:0}
.ccard.red{background:linear-gradient(152deg,#E8332C,#B91C1C);border:none;color:#fff}
.ccard.red::after{background:linear-gradient(90deg,rgba(255,255,255,.7),transparent)}
.ccard.red .k{color:rgba(255,255,255,.85)}.ccard.red h4{color:#fff}.ccard.red p{color:rgba(255,255,255,.92)}
.ccard.ink{background:#16120E;border:none;color:#fff}
.ccard.ink .k{color:var(--red)}.ccard.ink h4{color:#fff}.ccard.ink p{color:#C7C0B4}

/* compare */
.compare2{display:grid;grid-template-columns:1fr 1fr;gap:.9rem;margin:1.7rem 0}
.compare2 .col{border-radius:14px;padding:1.25rem}
.compare2 .bad{background:var(--off);border:1px solid var(--border2)}
.compare2 .good{background:linear-gradient(160deg,#FFF0EC,#FCE2DC);border:1.5px solid rgba(220,38,38,.4)}
.compare2 .tag{font-family:var(--mono);font-size:.6rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;display:inline-flex;align-items:center;gap:.45rem;margin-bottom:.6rem}
.compare2 .tag::before{content:"";width:7px;height:7px;border-radius:50%}
.compare2 .bad .tag{color:var(--light)}.compare2 .bad .tag::before{background:var(--light)}
.compare2 .good .tag{color:var(--red-d)}.compare2 .good .tag::before{background:var(--red)}
.compare2 p{margin:0;font-size:.98rem;line-height:1.5;color:#2A2620}
.compare2 .bad p{color:var(--muted)}

/* step flow */
.stepflow{display:flex;flex-wrap:wrap;gap:.5rem;margin:1.7rem 0}
.stepflow .node{flex:1 1 0;min-width:110px;background:#fff;border:1px solid var(--border);border-radius:12px;padding:.85rem .8rem;text-align:center;box-shadow:0 10px 22px -16px rgba(20,16,9,.3)}
.stepflow .node .nk{font-family:var(--mono);font-size:.54rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--red-d);display:block;margin-bottom:.25rem}
.stepflow .node .nt{font-size:.86rem;font-weight:600;color:var(--text);line-height:1.2}
.stepflow .node.go{background:linear-gradient(150deg,#E8332C,#B91C1C);border:none}.stepflow .node.go .nk,.stepflow .node.go .nt{color:#fff}
.stepflow .sep{align-self:center;color:var(--red);font-family:var(--mono);font-weight:700}

/* table */
.art-content .tbl{overflow:auto;margin:1.7rem 0;border-radius:14px;border:1px solid var(--border)}
.art-content table{width:100%;border-collapse:collapse;font-size:.95rem;background:#fff;min-width:480px}
.art-content thead th{text-align:left;font-family:var(--mono);font-size:.62rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--red-d);background:var(--surface);padding:.8rem 1rem;border-bottom:1px solid var(--border)}
.art-content tbody td{padding:.8rem 1rem;border-bottom:1px solid var(--border);color:#2A2620;line-height:1.45;vertical-align:top}
.art-content tbody tr:last-child td{border-bottom:none}
.art-content tbody td:first-child{font-weight:600;color:var(--text)}

/* pull divider */
.hr-ast{display:flex;align-items:center;justify-content:center;gap:1rem;margin:2.8rem 0}
.hr-ast::before,.hr-ast::after{content:"";height:1px;flex:1;background:var(--border)}
.hr-ast svg{width:1.1rem;height:1.1rem;color:var(--red);transform:rotate(-12deg)}

/* ---------- CTA box ---------- */
.ctabox{margin:2.8rem 0;position:relative;overflow:hidden;border-radius:24px;padding:2.4rem 2.2rem;background:linear-gradient(150deg,#16120E 0%,#241712 60%,#3a1614 120%);color:#fff;box-shadow:0 30px 70px -34px rgba(20,16,9,.6)}
.ctabox .gl{position:absolute;width:26rem;height:26rem;border-radius:50%;top:-12rem;right:-8rem;background:radial-gradient(circle,rgba(220,38,38,.4),transparent 65%);filter:blur(8px);pointer-events:none}
.ctabox .in{position:relative;z-index:1}
.ctabox .eb{font-family:var(--mono);font-size:.66rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:#F2A39E;display:flex;align-items:center;gap:.5rem;margin-bottom:.9rem}
.ctabox .eb .dot{width:7px;height:7px;border-radius:50%;background:var(--red);box-shadow:0 0 10px rgba(220,38,38,.8)}
.ctabox h3{font-family:var(--head);font-weight:400;text-transform:uppercase;font-size:clamp(1.6rem,2.8vw,2.3rem);line-height:1.05;color:#fff;margin:0 0 .7rem}
.ctabox h3 em{font-style:normal;color:#FF6B63}
.ctabox p{font-size:1.02rem;line-height:1.55;color:#D9D3C7;margin:0 0 1.5rem;max-width:52ch}
.ctabox .btn-row{display:flex;gap:.8rem;flex-wrap:wrap}
.ctabox .btn-red{background:var(--red);color:#fff;border:none}
.ctabox .btn-red:hover{background:#fff;color:var(--red-d)}
.ctabox .btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.3)}
.ctabox .btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.06)}
.ctabox .note{margin-top:1rem;font-family:var(--mono);font-size:.7rem;letter-spacing:.04em;color:#9C958A}

/* ---------- FAQ ---------- */
.faq{margin:1.6rem 0}
.faq details{border:1px solid var(--border);border-radius:14px;background:#fff;margin-bottom:.7rem;overflow:hidden;transition:box-shadow .2s}
.faq details[open]{box-shadow:0 16px 36px -22px rgba(20,16,9,.3)}
.faq summary{cursor:pointer;list-style:none;padding:1.1rem 1.3rem;font-weight:700;font-size:1.05rem;color:var(--text);display:flex;align-items:center;justify-content:space-between;gap:1rem}
.faq summary::-webkit-details-marker{display:none}
.faq summary .pl{flex:0 0 auto;width:22px;height:22px;border-radius:50%;border:1.5px solid var(--red);color:var(--red);position:relative;transition:transform .2s}
.faq summary .pl::before,.faq summary .pl::after{content:"";position:absolute;background:var(--red);border-radius:2px}
.faq summary .pl::before{width:10px;height:2px;top:9px;left:5px}
.faq summary .pl::after{width:2px;height:10px;top:5px;left:9px;transition:opacity .2s}
.faq details[open] summary .pl::after{opacity:0}
.faq .ans{padding:0 1.3rem 1.2rem;font-size:1rem;line-height:1.65;color:#2A2620}
.faq .ans p{margin:.4rem 0}

/* ---------- author / share footer of article ---------- */
.art-foot{max-width:720px;margin:2.6rem auto 0;padding:1.6rem 0 0;border-top:1px solid var(--border)}
.art-author{display:flex;gap:1rem;align-items:center}
.art-author .av{width:48px;height:48px;border-radius:50%;background:linear-gradient(150deg,#E8332C,#B91C1C);display:flex;align-items:center;justify-content:center;flex:0 0 auto}
.art-author .av svg{width:24px;height:24px;color:#fff}
.art-author .who b{display:block;color:var(--text);font-size:1rem}
.art-author .who span{font-size:.9rem;color:var(--muted)}

/* ---------- related ---------- */
.related{max-width:1100px;margin:3rem auto 0;padding:2.4rem var(--pad) 0;border-top:1px solid var(--border)}
.related .rh{font-family:var(--mono);font-size:.68rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--light);margin-bottom:1.2rem}
.related-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.post-card{display:block;background:#fff;border:1px solid var(--border);border-radius:18px;padding:1.5rem;transition:transform .3s cubic-bezier(.34,1.4,.64,1),box-shadow .3s;box-shadow:0 1px 2px rgba(20,16,9,.04),0 14px 30px -18px rgba(20,16,9,.2)}
.post-card:hover{transform:translateY(-4px);box-shadow:0 24px 50px -24px rgba(20,16,9,.3)}
.post-card .pc-cat{font-family:var(--mono);font-size:.62rem;font-weight:600;letter-spacing:.13em;text-transform:uppercase;color:var(--red-d);display:block;margin-bottom:.7rem}
.post-card h4{font-family:var(--head);font-weight:400;text-transform:uppercase;font-size:1.4rem;line-height:1.08;color:var(--text);margin:0 0 .5rem}
.post-card p{font-size:.95rem;line-height:1.45;color:var(--muted);margin:0 0 1rem}
.post-card .pc-go{font-family:var(--mono);font-size:.72rem;font-weight:600;letter-spacing:.05em;color:var(--red);text-transform:uppercase}

/* ===========================================================
   BLOG INDEX
   =========================================================== */
.blog-hero{max-width:1100px;margin:0 auto;padding:3rem var(--pad) 1rem;text-align:center}
.blog-hero .eyebrow{justify-content:center}
.blog-hero h1{font-family:var(--head);font-weight:400;text-transform:uppercase;font-size:clamp(2.6rem,6vw,5rem);line-height:1;color:var(--text);margin:1rem 0 0}
.blog-hero h1 em{font-style:normal;color:var(--red)}
.blog-hero p{font-size:clamp(1.05rem,1.6vw,1.3rem);color:var(--muted);max-width:54ch;margin:1.2rem auto 0;line-height:1.5}
.blog-grid{max-width:1100px;margin:2.6rem auto 0;padding:0 var(--pad);display:grid;grid-template-columns:repeat(2,1fr);gap:1.1rem}
.blog-grid .post-card.feat{grid-column:1 / -1;display:grid;grid-template-columns:1.2fr 1fr;gap:1.6rem;align-items:center;padding:2rem}
.blog-grid .post-card.feat h4{font-size:clamp(1.8rem,3vw,2.6rem)}
.feat-tag{display:inline-block;font-family:var(--mono);font-size:.6rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:#fff;background:var(--red);padding:.3rem .7rem;border-radius:100px;margin-bottom:.9rem}
.feat-visual{height:100%;min-height:170px;border-radius:14px;background:linear-gradient(140deg,#16120E,#3a1614);position:relative;overflow:hidden}
.feat-visual .gl{position:absolute;width:18rem;height:18rem;border-radius:50%;top:-7rem;right:-5rem;background:radial-gradient(circle,rgba(220,38,38,.5),transparent 65%);filter:blur(8px)}
.feat-visual .ast-deco{position:absolute;left:8%;bottom:-2rem;width:9rem;height:9rem;color:rgba(220,38,38,.45);transform:rotate(-12deg)}

/* responsive */
/* sous 1200px : colonne de lecture seule, centrée, TDM masquée */
@media(max-width:1200px){
  .art-layout{grid-template-columns:minmax(0,760px);justify-content:center}
  .toc{display:none}
  .art-content{grid-column:1}
}
@media(max-width:900px){
  .cardgrid.c2,.cardgrid.c3,.compare2,.related-grid,.blog-grid{grid-template-columns:1fr}
  .blog-grid .post-card.feat{grid-template-columns:1fr}
  .feat-visual{display:none}
  .stepflow{flex-direction:column}.stepflow .sep{display:none}
}