/* ═══════════════════════════════════════════════════
   13FLOW — Blog stylesheet
   Partagé par blog.html (index) + blog/*.html (articles)
   Cohérent avec le design system (theme.css, variables --bg/--text/--accent)
   ═══════════════════════════════════════════════════ */

/* ───── Hero blog ───── */
.blog-hero{padding:140px 0 60px;position:relative;overflow:hidden}
.blog-hero::before{content:'';position:absolute;top:0;left:0;right:0;height:100%;background:radial-gradient(ellipse at top,rgba(194,65,12,.10) 0%,transparent 60%);pointer-events:none}
.blog-hero-inner{max-width:820px;margin:0 auto;text-align:center;position:relative;z-index:1}
.blog-eyebrow{display:inline-flex;align-items:center;gap:8px;background:var(--accent-soft);color:var(--accent);font-size:12px;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;padding:8px 16px;border-radius:100px;border:1px solid rgba(194,65,12,.25);margin-bottom:24px}
.blog-eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 12px var(--accent)}
.blog-hero h1{font-family:var(--serif);font-size:clamp(36px,5.5vw,60px);line-height:1.05;letter-spacing:-.02em;margin-bottom:24px;color:var(--text)}
.blog-hero h1 em{font-style:italic;color:var(--accent)}
.blog-hero p.lede{font-size:18px;line-height:1.65;color:var(--text2);max-width:640px;margin:0 auto}

/* ───── Filtres catégories ───── */
.blog-filters{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-top:40px}
.blog-filter{background:var(--bg3);border:1px solid var(--border);color:var(--text2);font-size:13px;font-weight:500;padding:9px 16px;border-radius:100px;cursor:pointer;transition:all .2s}
.blog-filter:hover{color:var(--text);border-color:var(--border2)}
.blog-filter.active{background:var(--accent);border-color:var(--accent);color:#fff}

/* ───── Grille articles ───── */
.blog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;padding:60px 0 110px}
@media(max-width:980px){.blog-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.blog-grid{grid-template-columns:1fr}}

.post-card{background:var(--bg2);border:1px solid var(--border);border-radius:18px;padding:24px;display:flex;flex-direction:column;transition:all .25s var(--ease);position:relative;overflow:hidden}
.post-card::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,var(--accent),transparent);opacity:0;transition:opacity .3s}
.post-card:hover{transform:translateY(-4px);border-color:var(--border2);background:var(--bg3)}
.post-card:hover::before{opacity:1}
.post-card.hidden{display:none}

.post-meta{display:flex;align-items:center;gap:10px;margin-bottom:16px;font-size:11.5px;color:var(--text3);font-weight:500;letter-spacing:.5px;text-transform:uppercase}
.post-cat{display:inline-flex;align-items:center;gap:6px;background:var(--accent-soft);color:var(--accent);padding:5px 10px;border-radius:6px;font-size:11px;font-weight:700;letter-spacing:.5px;text-transform:uppercase;border:1px solid rgba(194,65,12,.18)}

.post-card h2{font-family:var(--serif);font-size:21px;line-height:1.25;letter-spacing:-.015em;margin-bottom:12px;color:var(--text)}
.post-card h2 a{color:inherit;transition:color .2s}
.post-card h2 a:hover{color:var(--accent)}
.post-card p{font-size:14.5px;line-height:1.6;color:var(--text2);margin-bottom:20px;flex:1}

.post-footer{display:flex;align-items:center;justify-content:space-between;padding-top:18px;border-top:1px solid var(--border);font-size:12.5px;color:var(--text3)}
.post-read{display:inline-flex;align-items:center;gap:6px;color:var(--accent);font-weight:600}
.post-read svg{width:14px;height:14px;transition:transform .2s}
.post-card:hover .post-read svg{transform:translateX(4px)}

/* ───── Article (page individuelle) ───── */
.article-hero{padding:130px 0 50px;position:relative}
.article-hero::before{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background:radial-gradient(ellipse at top,rgba(194,65,12,.08) 0%,transparent 60%);pointer-events:none}
.article-hero-inner{max-width:780px;margin:0 auto;position:relative;z-index:1}
.article-breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text3);margin-bottom:24px;flex-wrap:wrap}
.article-breadcrumb a{color:var(--text2);transition:color .2s}
.article-breadcrumb a:hover{color:var(--accent)}
.article-breadcrumb span.sep{color:var(--text3);opacity:.5}

.article-hero h1{font-family:var(--serif);font-size:clamp(32px,5vw,52px);line-height:1.1;letter-spacing:-.02em;margin-bottom:24px;color:var(--text)}
.article-hero h1 em{font-style:italic;color:var(--accent)}

.article-meta{display:flex;align-items:center;gap:20px;font-size:13.5px;color:var(--text2);flex-wrap:wrap;margin-bottom:32px}
.article-meta .author{display:inline-flex;align-items:center;gap:10px}
.article-meta .author-avatar{width:36px;height:36px;border-radius:50%;background:var(--accent);display:inline-flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:13px;letter-spacing:-.5px}
.article-meta .meta-sep{color:var(--text3);opacity:.4}

/* TL;DR / Réponse directe (GEO-friendly) */
.article-tldr{background:linear-gradient(180deg,rgba(194,65,12,.08) 0%,rgba(194,65,12,.03) 100%);border:1px solid rgba(194,65,12,.22);border-left:4px solid var(--accent);border-radius:0 18px 18px 0;padding:24px 28px;margin:32px 0 40px;max-width:780px}
.article-tldr .tldr-label{display:inline-flex;align-items:center;gap:8px;font-size:11px;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;color:var(--accent);margin-bottom:12px}
.article-tldr p{font-size:16px;line-height:1.65;color:var(--text);margin:0}
.article-tldr p strong{font-weight:700}

/* Sommaire ancré */
.article-toc{background:var(--bg2);border:1px solid var(--border);border-radius:14px;padding:24px 28px;margin:0 0 40px}
.article-toc-title{font-size:11px;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;color:var(--text3);margin-bottom:14px}
.article-toc ol{list-style:none;padding:0;counter-reset:toc}
.article-toc ol li{counter-increment:toc;font-size:14.5px;line-height:1.5;margin-bottom:9px;padding-left:30px;position:relative}
.article-toc ol li::before{content:counter(toc,decimal-leading-zero);position:absolute;left:0;top:0;color:var(--accent);font-weight:700;font-size:12px;letter-spacing:.5px}
.article-toc ol li a{color:var(--text2);transition:color .2s}
.article-toc ol li a:hover{color:var(--accent)}

/* ───── Corps de l'article ───── */
.article-body{max-width:780px;margin:0 auto;padding:0 0 80px}
.article-body p{font-size:17px;line-height:1.8;color:var(--text2);margin-bottom:1.4em}
.article-body p strong{color:var(--text);font-weight:600}
.article-body h2{font-family:var(--serif);font-size:clamp(24px,3.2vw,34px);line-height:1.2;letter-spacing:-.015em;margin:60px 0 24px;color:var(--text);scroll-margin-top:90px}
.article-body h2 em{font-style:italic;color:var(--accent)}
.article-body h3{font-family:var(--serif);font-size:clamp(19px,2.4vw,24px);line-height:1.3;margin:40px 0 16px;color:var(--text)}
.article-body ul,.article-body ol{margin:0 0 1.5em;padding-left:0;list-style:none}
.article-body ul li,.article-body ol li{position:relative;padding-left:28px;margin-bottom:12px;font-size:16.5px;line-height:1.75;color:var(--text2)}
.article-body ul li::before{content:'';position:absolute;left:8px;top:14px;width:6px;height:6px;border-radius:50%;background:var(--accent)}
.article-body ol{counter-reset:olist}
.article-body ol li{counter-increment:olist}
.article-body ol li::before{content:counter(olist) '.';position:absolute;left:0;top:0;color:var(--accent);font-weight:700;font-size:15px}
.article-body a{color:var(--accent);border-bottom:1px solid rgba(194,65,12,.35);transition:all .2s}
.article-body a:hover{color:var(--accent2);border-bottom-color:var(--accent2)}
.article-body blockquote{border-left:3px solid var(--accent);background:var(--bg3);padding:18px 24px;margin:28px 0;border-radius:0 12px 12px 0;font-family:var(--serif);font-style:italic;font-size:17px;color:var(--text);line-height:1.55}

/* Tables comparatives */
.article-body table{width:100%;border-collapse:collapse;margin:28px 0;font-size:14.5px;background:var(--bg2);border:1px solid var(--border);border-radius:12px;overflow:hidden}
.article-body table th{background:var(--bg3);color:var(--text);font-weight:700;text-align:left;padding:14px 18px;font-size:13px;letter-spacing:.3px;border-bottom:1px solid var(--border)}
.article-body table td{padding:14px 18px;color:var(--text2);border-bottom:1px solid var(--border);line-height:1.5}
.article-body table tr:last-child td{border-bottom:none}
.article-body table strong{color:var(--text)}

/* Encart données chiffrées (GEO) */
.stat-box{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--border);border:1px solid var(--border);border-radius:14px;overflow:hidden;margin:32px 0}
@media(max-width:640px){.stat-box{grid-template-columns:1fr}}
.stat-item{background:var(--bg2);padding:22px 20px;text-align:center}
.stat-num{font-family:var(--serif);font-size:32px;font-weight:700;color:var(--accent);line-height:1;letter-spacing:-.02em;margin-bottom:6px}
.stat-lbl{font-size:13px;color:var(--text2);line-height:1.4}

/* Encart "À retenir" (key takeaway, GEO-friendly) */
.callout{background:var(--bg2);border:1px solid var(--border);border-left:3px solid var(--accent);border-radius:0 14px 14px 0;padding:22px 28px;margin:32px 0}
.callout-title{display:inline-flex;align-items:center;gap:8px;font-size:11px;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;color:var(--accent);margin-bottom:12px}
.callout p{font-size:16px;line-height:1.65;margin:0;color:var(--text)}

/* ───── FAQ article (GEO-friendly, FAQ schema linké) ───── */
.article-faq{max-width:780px;margin:60px auto 0}
.article-faq h2{margin-bottom:32px}
.faq-item{border-bottom:1px solid var(--border);padding:22px 0}
.faq-item:first-of-type{border-top:1px solid var(--border)}
.faq-q{font-family:var(--serif);font-size:18px;font-weight:600;color:var(--text);margin-bottom:12px;line-height:1.35;letter-spacing:-.01em}
.faq-a{font-size:15.5px;line-height:1.7;color:var(--text2)}
.faq-a strong{color:var(--text)}

/* ───── Maillage interne ───── */
.related-pages{max-width:780px;margin:60px auto 0;padding:32px;background:var(--bg2);border:1px solid var(--border);border-radius:18px}
.related-pages h3{font-family:var(--serif);font-size:20px;color:var(--text);margin-bottom:18px;letter-spacing:-.01em}
.related-pages-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
@media(max-width:640px){.related-pages-grid{grid-template-columns:1fr}}
.related-pages-grid a{display:flex;align-items:center;gap:10px;padding:10px 14px;background:var(--bg3);border:1px solid var(--border);border-radius:10px;font-size:14px;color:var(--text2);transition:all .2s}
.related-pages-grid a:hover{background:var(--accent-soft);border-color:rgba(194,65,12,.25);color:var(--text)}
.related-pages-grid a svg{width:14px;height:14px;color:var(--accent);flex-shrink:0}

/* ───── CTA fin d'article ───── */
.article-cta{max-width:780px;margin:60px auto 0;padding:40px;background:linear-gradient(180deg,rgba(194,65,12,.12) 0%,rgba(194,65,12,.03) 100%);border:1px solid rgba(194,65,12,.25);border-radius:22px;text-align:center}
.article-cta h3{font-family:var(--serif);font-size:clamp(22px,3vw,28px);color:var(--text);margin-bottom:14px;letter-spacing:-.015em;line-height:1.25}
.article-cta h3 em{font-style:italic;color:var(--accent)}
.article-cta p{font-size:15.5px;color:var(--text2);margin-bottom:24px;max-width:520px;margin-left:auto;margin-right:auto;line-height:1.6}
.article-cta .grp{justify-content:center}

/* ───── Suite d'articles ───── */
.next-articles{max-width:1100px;margin:80px auto 0}
.next-articles h2{font-family:var(--serif);font-size:clamp(22px,3vw,28px);text-align:center;margin-bottom:40px;color:var(--text);letter-spacing:-.015em}
.next-articles h2 em{font-style:italic;color:var(--accent)}
.next-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media(max-width:980px){.next-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.next-grid{grid-template-columns:1fr}}

/* ───── Adaptations ───── */
@media(max-width:768px){
  .blog-hero{padding:110px 0 40px}
  .article-hero{padding:100px 0 30px}
  .article-tldr{padding:20px 22px}
  .article-toc{padding:20px 22px}
  .article-body p{font-size:16px}
  .related-pages{padding:24px}
  .article-cta{padding:30px 24px}
}