/* =============================================================
   Blog Mobile France — thème clair aligné sur la charte graphique
   (bleu marine #1A3E7C, rouge brique #C24B2C, fond blanc).
   Mêmes conventions que web/landing/src/styles/global.css.
   ============================================================= */
:root{
  --navy:#1A3E7C;--navy-dark:#112B57;--navy-50:#EAF0F9;--navy-100:#D3DEEE;
  --brick:#C24B2C;--brick-dark:#8E3520;--brick-50:#FBEDE8;
  --green:#2E8B57;--green-50:#E4F2EA;
  --white:#FFFFFF;--grey-100:#F2F2F2;--grey-500:#8A8A8A;--grey-700:#4A4A4A;--black:#1A1A1A;
  --bg:var(--white);--text:var(--black);--muted:var(--grey-700);--muted-2:var(--grey-500);
  --border:#E5E7EB;--border-strong:#D1D5DB;--accent:var(--navy);--accent-2:var(--brick);
  --radius:12px;
  --shadow-card:0 4px 12px rgba(26,62,124,.06);--shadow-hover:0 10px 28px rgba(26,62,124,.12);
  --ease:cubic-bezier(.33,1,.68,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);line-height:1.65;
  font-family:"Open Sans",ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
h1,h2,h3,h4,.brand{font-family:"Montserrat","Open Sans",ui-sans-serif,system-ui,sans-serif;
  line-height:1.2;letter-spacing:-.01em;color:var(--navy);font-weight:700}
h1,h2,h3{text-wrap:balance}
p{text-wrap:pretty}
a{color:var(--navy);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--brick)}
::selection{background:var(--navy-100);color:var(--navy)}
:focus-visible{outline:3px solid var(--navy);outline-offset:3px;border-radius:3px}
.container{max-width:1080px;margin:0 auto;padding:0 24px}
.narrow{max-width:780px}

/* Header */
header.site{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px;gap:16px}
.brand{font-weight:800;display:flex;align-items:center;gap:12px;color:var(--navy);font-size:18px;letter-spacing:-.01em}
.brand .logo{width:38px;height:38px;border-radius:8px;background:var(--navy);display:grid;place-items:center;
  color:#fff;font-weight:800;font-size:14px;letter-spacing:-.02em;box-shadow:var(--shadow-card)}
.nav nav{display:flex;align-items:center;gap:26px}
.nav nav a{color:var(--muted);font-size:15px;font-weight:500;position:relative;padding:6px 0}
.nav nav a:hover{color:var(--navy)}

/* Boutons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border-radius:6px;
  font-family:"Montserrat",sans-serif;font-weight:600;font-size:15px;letter-spacing:.02em;
  border:1.5px solid var(--navy);color:var(--navy);background:var(--white);cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .3s var(--ease),background .2s,border-color .2s,color .2s;margin:4px 8px 4px 0}
.btn:hover{background:var(--navy-50);transform:translateY(-1px);box-shadow:var(--shadow-hover)}
.btn.primary{background:var(--navy);color:#fff;border-color:var(--navy);box-shadow:0 4px 12px rgba(26,62,124,.22)}
.btn.primary:hover{background:var(--navy-dark);border-color:var(--navy-dark);color:#fff}
.btn.action{background:var(--brick);color:#fff;border-color:var(--brick);box-shadow:0 8px 18px rgba(194,75,44,.25)}
.btn.action:hover{background:var(--brick-dark);border-color:var(--brick-dark);color:#fff}

/* Sections / entêtes */
section{padding:64px 0}
section.head{padding:80px 0 26px;text-align:center;background:var(--white)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-family:"Open Sans",sans-serif;font-size:14px;
  font-weight:600;color:var(--brick);margin-bottom:14px}
.eyebrow::before{content:"";width:24px;height:2px;background:currentColor;display:inline-block}
h1{font-size:clamp(30px,5vw,46px);margin:0 0 16px;font-weight:800}
h2{font-size:26px;margin:40px 0 14px}
h3{font-size:20px;margin:28px 0 10px}
.intro{color:var(--muted);max-width:620px;margin:0 auto;font-size:17px;line-height:1.7}
.muted{color:var(--muted)}
.pt0{padding-top:8px;background:var(--grey-100)}

/* Barre de rubriques */
.topic-chips{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 30px}
.topic-chips .chip{display:inline-flex;align-items:center;gap:7px;padding:8px 15px;border-radius:999px;
  border:1px solid var(--border);background:var(--white);color:var(--muted);font-size:13.5px;font-weight:600;
  transition:border-color .2s var(--ease),color .2s,background .2s,transform .2s var(--ease)}
.topic-chips .chip:hover{border-color:var(--navy);color:var(--navy);background:var(--navy-50);transform:translateY(-1px)}
.topic-chips .chip.on{background:var(--navy);border-color:var(--navy);color:#fff}
.topic-chips .chip span{font-size:11.5px;opacity:.7;font-weight:700}

/* Grille d'articles */
.post-grid{display:grid;gap:26px;grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.post-card{display:flex;flex-direction:column;background:var(--white);border:1px solid var(--border);
  border-radius:var(--radius);overflow:hidden;color:inherit;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .2s}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--navy-100)}
.post-card .thumb{height:160px;border-bottom:1px solid var(--border);overflow:hidden}
.post-card .body{padding:24px;display:flex;flex-direction:column;gap:9px;flex:1}
.post-card .tag{font-family:"Montserrat",sans-serif;font-size:11px;font-weight:700;letter-spacing:.12em;
  text-transform:uppercase;color:var(--brick)}
.post-card h3{margin:0;font-size:18px;color:var(--navy)}
.post-card p{margin:0;color:var(--muted);font-size:14.5px;flex:1;line-height:1.6}
.post-card .more{color:var(--navy);font-weight:600;font-size:14px;transition:color .2s var(--ease)}
.post-card:hover .more{color:var(--brick)}

/* Illustrations (couvertures en dégradé marine->brique) */
.cover{position:relative;overflow:hidden;height:100%;min-height:160px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--a,#1A3E7C),var(--b,#C24B2C));color:#fff;isolation:isolate}
.cover::before{content:"";position:absolute;inset:0;z-index:0;opacity:.35;
  background-image:radial-gradient(rgba(255,255,255,.18) 1px,transparent 1px);background-size:16px 16px}
.cover .cover-glow{position:absolute;top:-30%;right:-15%;width:65%;height:130%;z-index:0;filter:blur(6px);
  background:radial-gradient(circle,rgba(255,255,255,.35),transparent 62%)}
.cover .cover-ic{width:52px;height:52px;color:rgba(255,255,255,.92);z-index:1;filter:drop-shadow(0 4px 10px rgba(0,0,0,.18))}
.cover .cover-meta{position:absolute;left:0;right:0;bottom:0;display:flex;justify-content:space-between;align-items:center;gap:8px;padding:10px 14px;z-index:1}
.cover .cover-lb{font-family:"Montserrat",sans-serif;font-size:11px;font-weight:800;letter-spacing:.07em;text-transform:uppercase;
  color:var(--navy);background:rgba(255,255,255,.9);padding:4px 11px;border-radius:999px}
.cover .cover-brand{font-size:10px;font-weight:600;color:rgba(255,255,255,.75);white-space:nowrap}
.cover.big{min-height:300px;border-radius:var(--radius);margin:26px 0;border:1px solid var(--border)}
.cover.big .cover-ic{width:88px;height:88px}
.cover.big .cover-lb{font-size:13px}
.cover.big .cover-brand{font-size:12px}
.illus-img{margin:0;height:100%;display:block}
.illus-img img{width:100%;height:100%;object-fit:cover;display:block}
.illus-img.big{margin:26px 0;height:auto}
.illus-img.big img{height:auto;max-height:440px;border-radius:var(--radius);border:1px solid var(--border)}
.illus-img .credit{font-size:12px;color:var(--muted-2);padding:8px 2px}

/* Article */
.article{padding:70px 0 50px}
.article .back{display:inline-block;color:var(--muted);margin-bottom:24px;font-size:14px}
.article .back:hover{color:var(--navy)}
.article .tag{display:inline-block;font-family:"Montserrat",sans-serif;font-size:11px;font-weight:700;letter-spacing:.12em;
  text-transform:uppercase;color:var(--brick)}
.article a.tag-link{padding:5px 13px;border-radius:999px;border:1px solid var(--border);background:var(--white);
  transition:border-color .2s var(--ease),color .2s,background .2s}
.article a.tag-link:hover{border-color:var(--brick);color:var(--brick);background:var(--brick-50)}
.article .content a.ilink{color:var(--navy);text-decoration:underline;text-underline-offset:2px;text-decoration-style:dotted}
.article .content a.ilink:hover{color:var(--brick)}
.related{margin:54px 0 0;padding-top:30px;border-top:1px solid var(--border)}
.related>h3{font-family:"Montserrat",sans-serif;font-size:14px;text-transform:uppercase;letter-spacing:.1em;color:var(--muted);margin:0 0 18px}
.related .post-grid{gap:20px}
.article .meta{color:var(--muted-2);font-size:14px;margin:6px 0 8px}
.article .lead-intro{font-size:19px;line-height:1.6;color:var(--muted);margin:0 0 4px;font-weight:400}
.article .content{color:var(--text);font-size:16.5px;line-height:1.85}
.article .content h2{font-size:25px;margin:44px 0 14px;color:var(--navy)}
.article .content h3{font-size:19px;margin:30px 0 10px;color:var(--navy)}
.article .content p{margin:0 0 18px}
.article .content a{color:var(--navy);text-decoration:underline;text-underline-offset:2px}
.article .content a:hover{color:var(--brick)}
.article .content ul,.article .content ol{color:var(--text);padding-left:22px;margin:0 0 18px}
.article .content li{margin:8px 0}
.article .content strong{color:var(--navy);font-weight:700}
.article .content code{background:var(--brick-50);color:var(--brick-dark);padding:2px 7px;border-radius:6px;font-size:14px;font-family:ui-monospace,monospace}
.article .content table{width:100%;border-collapse:collapse;margin:0 0 20px;font-size:15px}
.article .content th,.article .content td{text-align:left;padding:10px 12px;border:1px solid var(--border)}
.article .content th{background:var(--navy-50);color:var(--navy);font-family:"Montserrat",sans-serif;font-weight:700}

/* Blocs spéciaux */
pre.code{background:#0F172A;border:1px solid var(--navy-dark);border-radius:10px;padding:16px;overflow-x:auto;font-size:13.5px;color:#e5e7eb;margin:0 0 16px}
.callout{display:flex;gap:12px;padding:16px 20px;border-radius:var(--radius);margin:22px 0;
  background:var(--navy-50);border:1px solid var(--navy-100)}
.callout.warn{background:var(--brick-50);border-color:rgba(194,75,44,.35)}
.callout p{margin:0;color:var(--text);font-size:15px}
.sources{margin:36px 0;padding:18px 22px;background:var(--grey-100);border:1px solid var(--border);border-radius:var(--radius)}
.sources h3{margin:0 0 8px;font-size:15px;color:var(--navy)}
.sources ul{margin:0;padding-left:20px;color:var(--muted);font-size:14.5px}

/* CTA de bas d'article (bleu marine + accent brique) */
.cta-band{margin:44px 0 0;padding:36px;border-radius:var(--radius);background:var(--navy);text-align:center;
  position:relative;overflow:hidden;color:#fff}
.cta-band::before{content:"";position:absolute;right:-70px;top:-70px;width:220px;height:220px;
  background:var(--brick);border-radius:50%;opacity:.16;pointer-events:none}
.cta-band h3{margin:0 0 8px;color:#fff;position:relative;z-index:1}
.cta-band p{color:rgba(255,255,255,.82);margin:0 0 18px;position:relative;z-index:1}
.cta-band .btn{position:relative;z-index:1}

/* Footer */
footer.site{padding:46px 0;border-top:1px solid var(--border);color:var(--muted);font-size:14px;margin-top:40px;background:var(--white)}
footer.site .row{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}
footer.site a{color:var(--muted)}
footer.site a:hover{color:var(--brick)}

@media(max-width:640px){.nav nav a:not(.btn){display:none}}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}