/* Blog Agence VMR 3D - styles partagés (design system du site) */
:root {
  --teal:#143c46;
  --teal-mid:#2a6e7f;
  --teal-light:#d4e8ec;
  --teal-pale:#eef5f7;
  --cream:#f7f4f0;
  --white:#ffffff;
  --text:#143c46;
  --soft:#4a7080;
  --muted:#7d9aa3;
  --border:#ccdde2;
  --gold:#c8914b;
  --gold-pale:#f7ead9;
  --shadow:0 18px 48px rgba(20,60,70,.12);
  --radius:22px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;background:var(--cream);color:var(--text);font-size:16px;line-height:1.7}
a{color:var(--teal-mid)}
img{max-width:100%;display:block}

/* TOPBAR */
.topbar{position:sticky;top:0;z-index:50;background:rgba(20,60,70,.96);backdrop-filter:blur(12px);color:#fff;border-bottom:1px solid rgba(255,255,255,.12)}
.top-inner{max-width:1320px;margin:auto;padding:14px 22px;display:flex;justify-content:space-between;align-items:center;gap:18px}
.logo{display:flex;flex-direction:column;text-decoration:none;color:#fff;flex:0 0 auto;align-items:center}
.logo img{height:48px;width:auto;flex-shrink:0}
.logo-hint{font-size:10px;color:rgba(255,255,255,.45);letter-spacing:.04em;margin-top:4px}
.nav{display:flex;align-items:center;gap:7px;flex-wrap:nowrap}
.nav a{text-decoration:none;font-size:12px;padding:8px 10px;border-radius:999px;color:rgba(255,255,255,.86);border:1px solid transparent;white-space:nowrap}
.nav a:hover{border-color:rgba(255,255,255,.25);background:rgba(255,255,255,.08)}
.nav .nav-cta{background:#fff;color:var(--teal);font-weight:700;padding:11px 16px}

/* HERO */
.hero{background:linear-gradient(135deg,#0d2c34 0%,#143c46 48%,#2a6e7f 100%);color:#fff}
.hero-inner{max-width:1120px;margin:auto;padding:56px 24px 44px;text-align:center}
.kicker{display:inline-block;color:var(--gold-pale);text-transform:uppercase;letter-spacing:.18em;font-size:12px;font-weight:700;margin-bottom:16px}
.hero h1{max-width:920px;margin:0 auto;font-size:clamp(1.6rem,3vw,2.5rem);line-height:1.15;letter-spacing:-.035em;font-weight:790}
.hero-sub{max-width:760px;margin:14px auto 0;color:rgba(255,255,255,.85);font-size:1.02rem}

/* BOUTONS */
.btn{display:inline-flex;justify-content:center;align-items:center;text-decoration:none;border-radius:14px;padding:14px 24px;font-weight:760;font-family:inherit;font-size:1rem;cursor:pointer;border:none;transition:.2s ease}
.btn:hover{transform:translateY(-1px);box-shadow:0 10px 24px rgba(0,0,0,.14)}
.btn-gold{background:var(--gold);color:#fff}
.btn-gold:hover{background:#b07a3a;box-shadow:0 10px 28px rgba(200,145,75,.3)}
.btn-outline{border:2px solid var(--teal);color:var(--teal);background:transparent}
.btn-outline:hover{background:var(--teal);color:#fff}

/* LISTE DES ARTICLES (blog/index.html) */
main.blog-liste{max-width:1120px;margin:auto;padding:48px 24px 80px}
.blog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.blog-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;text-decoration:none;color:var(--text);transition:transform .2s,box-shadow .2s}
.blog-card:hover{transform:translateY(-4px);box-shadow:0 28px 64px rgba(20,60,70,.16)}
.blog-card-img{width:100%;aspect-ratio:16/10;overflow:hidden;border-bottom:1px solid var(--border);background:#0d2a31}
.blog-card-img img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.blog-card:hover .blog-card-img img{transform:scale(1.04)}
.blog-card-body{padding:20px;display:flex;flex-direction:column;gap:8px;flex:1}
.blog-type{font-size:11px;font-weight:700;letter-spacing:.02em;color:var(--gold)}
.blog-type::first-letter{text-transform:uppercase}
.blog-card-body h3{font-size:1rem;font-weight:750;color:var(--teal);line-height:1.35}
.blog-card-body p{font-size:.88rem;color:var(--soft);line-height:1.65;flex:1}
.blog-lire{font-size:.85rem;font-weight:700;color:var(--teal-mid)}

/* ARTICLE */
main.article{max-width:820px;margin:auto;padding:48px 24px 80px}
.article-video{background:#0d2a31;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);margin-bottom:36px}
.article-video video{width:100%;max-height:70vh;display:block}
.article-video.portrait video{max-height:78vh;object-fit:contain;margin:0 auto}
main.article h2{font-size:1.3rem;line-height:1.3;letter-spacing:-.02em;margin:34px 0 14px;color:var(--teal)}
main.article p{color:var(--soft);font-size:1rem;margin-bottom:16px}
main.article ul{padding-left:24px;margin-bottom:16px}
main.article li{color:var(--soft);margin:8px 0}
main.article strong{color:var(--teal)}
.article-note{background:var(--teal-pale);border:1px solid var(--teal-light);border-radius:12px;padding:14px 18px;font-size:.9rem;color:var(--soft);margin-bottom:16px}
.article-cta{background:var(--teal);color:#fff;border-radius:var(--radius);padding:36px;text-align:center;margin-top:44px}
.article-cta h3{font-size:1.25rem;margin-bottom:10px;color:#fff}
.article-cta p{color:rgba(255,255,255,.84);max-width:640px;margin:0 auto 22px;font-size:.98rem}
.article-cta .btn-outline{border-color:rgba(255,255,255,.5);color:#fff}
.article-cta .btn-outline:hover{background:rgba(255,255,255,.12)}
.article-cta .actions{display:flex;justify-content:center;gap:12px;flex-wrap:wrap}
.retour{margin-top:32px;text-align:center}
.retour a{font-weight:700;text-decoration:none}

/* FOOTER */
footer{background:var(--teal);color:rgba(255,255,255,.76);padding:30px 24px;text-align:center;font-size:13px;margin-top:40px}
footer strong{display:block;color:#fff;margin-bottom:6px}
footer a{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-lines{display:grid;gap:5px}

/* RESPONSIVE */
@media(max-width:1040px){.top-inner{flex-direction:column;align-items:center;gap:12px}.nav{width:100%;justify-content:flex-start;overflow-x:auto;padding-bottom:4px;scrollbar-width:thin}.blog-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.top-inner{padding:12px 14px}.logo img{height:36px}.nav a{font-size:11.5px;padding:7px 9px}.nav .nav-cta{padding:8px 12px}.hero-inner{padding:44px 18px 36px}.blog-grid{grid-template-columns:1fr}.article-cta .actions{flex-direction:column;align-items:stretch}}