/* Groupe Estua inc. — feuille de style du site générique.
   Palette tirée de la série officielle du logo V3 (voir README du logo) :
   marine #0B3A5C, bleu profond #075A8B, bleu moyen #1684AA,
   turquoise #33A7A9, gris-bleu #5B7A8C. */
:root{
  --marine:#0B3A5C; --deep:#075A8B; --mid:#1684AA; --turq:#33A7A9;
  --grey:#5B7A8C; --ink:#1E3442; --paper:#FFFFFF; --mist:#F2F7FA;
  --line:#D7E3EA; --notice-bg:#FFF7E0; --notice-line:#D9A441;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,
  "Helvetica Neue",Arial,sans-serif;font-size:18px;line-height:1.6;
  color:var(--ink);background:var(--paper)}
img{max-width:100%;height:auto}
a{color:var(--deep)}
a:focus-visible{outline:3px solid var(--turq);outline-offset:2px}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}

/* En-tête : fond clair, logo horizontal complet, jamais collé aux bords */
.site-header{background:var(--paper);border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;gap:24px;
  flex-wrap:wrap;padding-top:14px;padding-bottom:14px}
.brand{display:inline-flex;align-items:center;padding:6px 4px}
.brand img{height:54px;width:auto;display:block}
.main-nav{margin-left:auto}
.main-nav ul{display:flex;gap:6px;list-style:none;margin:0;padding:0;
  flex-wrap:wrap}
.main-nav a{display:inline-flex;align-items:center;min-height:44px;
  padding:8px 12px;color:var(--marine);text-decoration:none;
  font-weight:600;border-radius:8px}
.main-nav a:hover{background:var(--mist);text-decoration:underline}
.lang-switch{display:inline-flex;gap:2px;align-items:center;
  font-weight:600}
.lang-switch a{display:inline-flex;align-items:center;min-height:44px;
  padding:8px 10px;color:var(--deep);text-decoration:none;border-radius:8px}
.lang-switch a[aria-current="true"]{color:var(--marine);
  text-decoration:underline}
.lang-switch .sep{color:var(--grey)}

/* Hero */
.hero{background:linear-gradient(160deg,var(--marine),var(--deep));
  color:#fff;padding:64px 0 56px}
.hero h1{margin:0 0 14px;font-size:2.4rem;line-height:1.15}
.hero p{margin:0;max-width:46rem;font-size:1.15rem}
.hero .signe{height:104px;width:auto;display:block;margin-bottom:22px}

/* Sections */
.section{padding:52px 0}
.section.alt{background:var(--mist)}
.section h2{color:var(--marine);margin:0 0 12px;font-size:1.7rem}
.section .lead{max-width:48rem;margin:0 0 26px}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:#fff;border:1px solid var(--line);border-radius:12px;
  padding:22px}
.card h3{margin:0 0 8px;color:var(--deep);font-size:1.15rem}
.card p{margin:0}
.products{list-style:none;margin:0;padding:0;display:grid;
  grid-template-columns:repeat(2,1fr);gap:18px}
.products li{background:#fff;border:1px solid var(--line);
  border-radius:12px;padding:22px}
.products h3{margin:0 0 6px;color:var(--marine);font-size:1.2rem}
.products p{margin:0 0 10px}
.products .visit{display:inline-flex;align-items:center;min-height:44px;
  font-weight:600}
.notice{border:1px solid var(--notice-line);background:var(--notice-bg);
  border-radius:10px;padding:16px 18px;margin:0 0 28px}
.notice p{margin:0}
.legal h2{margin-top:34px;font-size:1.3rem}
.legal h2:first-of-type{margin-top:8px}
.legal p,.legal li{max-width:50rem}

/* Pied de page : fond marine, logo inversé entier, marges franches */
.site-footer{background:var(--marine);color:#DCE9F0;padding:40px 0 30px;
  margin-top:0}
.site-footer .brand img{height:46px}
.site-footer nav ul{display:flex;gap:6px;list-style:none;margin:14px 0;
  padding:0;flex-wrap:wrap}
.site-footer nav a{display:inline-flex;align-items:center;min-height:44px;
  padding:8px 10px;color:#fff;text-decoration:none;font-weight:600}
.site-footer nav a:hover{text-decoration:underline}
.site-footer p{margin:6px 0;font-size:.95rem}

@media (max-width:760px){
  .cards{grid-template-columns:1fr}
  .products{grid-template-columns:1fr}
  .main-nav{margin-left:0}
  .hero{padding:44px 0 40px}
  .hero h1{font-size:1.9rem}
  .brand img{height:46px}
}