/* ============================================================
   Feuille de style partagée pour les pages SEO statiques
   (compagnons du SPA principal — mêmes couleurs/typo que index.html)
   ============================================================ */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --green-1:#1f6b34;
  --green-2:#3fa15a;
  --green-3:#e9f7ef;
  --blue-1:#0d3b66;
  --blue-2:#1a6fb5;
  --blue-3:#eaf5fc;
  --navy:#0b2545;
  --text:#233142;
  --text-light:#5b6b7c;
  --bg:#ffffff;
  --bg-alt:#f5faf8;
  --border:#e3ecea;
  --shadow:0 10px 30px -12px rgba(11,37,69,.18);
  --shadow-sm:0 4px 14px -6px rgba(11,37,69,.12);
  --radius:16px;
  --radius-sm:10px;
  --grad-brand:linear-gradient(135deg,var(--green-2),var(--blue-2));
  --ff:'Segoe UI',system-ui,-apple-system,'Helvetica Neue',Arial,sans-serif;
}
html{scroll-behavior:smooth}
body{font-family:var(--ff);color:var(--text);background:var(--bg);line-height:1.65}
img,svg{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 26px;border-radius:999px;font-weight:700;font-size:.95rem;cursor:pointer;border:none;transition:transform .15s,box-shadow .15s}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:var(--shadow-sm)}
.btn-dark{background:var(--navy);color:#fff}
.btn-light{background:#fff;color:var(--navy);box-shadow:var(--shadow-sm)}

/* Header */
.seo-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--border)}
.seo-header-inner{max-width:1280px;margin:0 auto;padding:14px 24px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.seo-brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--navy)}
.seo-logo{width:40px;height:40px;border-radius:50%;background:var(--grad-brand);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.seo-nav{display:flex;align-items:center;gap:24px;font-weight:600;font-size:.92rem}
.seo-nav a{color:var(--text)}
.seo-nav a:hover{color:var(--green-1)}
.seo-call{white-space:nowrap}
@media(max-width:860px){ .seo-nav{display:none} }

/* Breadcrumb */
.breadcrumb{font-size:.85rem;color:var(--text-light);padding:16px 0}
.breadcrumb a{color:var(--green-1);font-weight:600}

/* Hero */
.seo-hero{background:var(--navy);color:#fff;padding:60px 0 50px}
.seo-hero h1{font-size:clamp(1.7rem,4vw,2.6rem);margin-bottom:14px}
.seo-hero p{max-width:680px;color:rgba(255,255,255,.85);font-size:1.05rem}
.seo-hero .btn{margin-top:22px}

/* Sections */
.seo-section{padding:56px 0}
.seo-section.alt{background:var(--bg-alt)}
.seo-section h2{font-size:clamp(1.3rem,3vw,1.8rem);color:var(--navy);margin-bottom:10px}
.seo-section > .container > p.lead{color:var(--text-light);max-width:760px;margin-bottom:28px}
.seo-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px;margin-top:24px}
.seo-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-sm)}
.seo-card h3{font-size:1.05rem;color:var(--navy);margin-bottom:8px}
.seo-card p{color:var(--text-light);font-size:.92rem}
.check-list{list-style:none;margin-top:16px}
.check-list li{padding:7px 0 7px 28px;position:relative;color:var(--text)}
.check-list li::before{content:'✓';position:absolute;left:0;color:var(--green-1);font-weight:800}

/* CTA band */
.seo-cta{background:var(--grad-brand);color:#fff;padding:48px 0;text-align:center;border-radius:var(--radius);margin:0 24px}
.seo-cta h2{color:#fff;margin-bottom:10px}
.seo-cta p{color:rgba(255,255,255,.9);margin-bottom:20px}

/* Footer */
.seo-footer{background:var(--navy);color:rgba(255,255,255,.75);padding:40px 0 24px;margin-top:40px}
.seo-footer a{color:rgba(255,255,255,.75)}
.seo-footer a:hover{color:#fff}
.seo-footer-links{display:flex;flex-wrap:wrap;gap:18px;margin-bottom:18px;font-size:.88rem}
.seo-footer small{display:block;color:rgba(255,255,255,.5);font-size:.8rem}

.reveal{opacity:1}

/* Article / prose content */
.prose{max-width:720px}
.prose h2{color:var(--navy);margin:32px 0 10px;font-size:1.3rem}
.prose h3{color:var(--navy);margin:22px 0 8px;font-size:1.08rem}
.prose p{margin-bottom:14px;color:var(--text)}
.prose ul{margin:0 0 14px 20px}
.prose li{margin-bottom:6px}
.article-meta{color:var(--text-light);font-size:.85rem;margin-bottom:6px}
.blog-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:22px;margin-top:24px}
.blog-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-sm);display:flex;flex-direction:column}
.blog-card h3{color:var(--navy);font-size:1.08rem;margin-bottom:8px}
.blog-card p{color:var(--text-light);font-size:.92rem;margin-bottom:14px;flex:1}
.blog-card a{color:var(--green-1);font-weight:700;font-size:.9rem}