:root{
  --bg:#b6d0df;
  --ink:#0f3554;
  --white:#ffffff;
  --shadow:0 10px 28px rgba(16,24,36,.10);
  --radius:14px;
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
}

a{ color:inherit; }
.container{ width:min(1120px, 92vw); margin:0 auto; }

/* Header */
.topbar{
  background: var(--ink);
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 50;
}
.topbar__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  padding: 14px 0;
}
.brand{
  display:flex;
  align-items:center;
  gap:14px;
  min-width: 260px;
}
.logo{ height:52px; width:auto; display:block; }
.brand-text{ font-weight:800; letter-spacing:.2px; font-size:18px; white-space:nowrap; }

.nav{
  display:flex; gap:18px; align-items:center;
}
.nav a{
  text-decoration:none;
  color: rgba(255,255,255,.92);
  padding:10px 12px;
  border-radius:12px;
}
.nav a:hover{ background: rgba(255,255,255,.12); }
.nav a[aria-current="page"]{
  background: rgba(255,255,255,.18);
}

/* Mobile */
.burger{ display:none; }
.mobile{
  display:none;
  border-top:1px solid rgba(255,255,255,.18);
  background: rgba(15,53,84,.96);
}
.mobile__inner{ padding:12px 0 16px; display:grid; gap:8px; }
.mobile a{
  text-decoration:none;
  color:#fff;
  padding:12px 12px;
  border-radius:12px;
  background: rgba(255,255,255,.10);
}
.mobile a:hover{ background: rgba(255,255,255,.14); }

/* Page */
.hero{ padding: 34px 0 16px; }
h1{ margin:0 0 8px; font-size: clamp(28px, 3.2vw, 42px); }
h2{ margin: 0 0 10px; font-size: 22px; }
.muted{ opacity:.82; line-height:1.5; }
.pill{
  display:inline-flex;
  padding:8px 12px;
  border-radius:999px;
  background: rgba(255,255,255,.55);
  border: 1px solid rgba(15,53,84,.18);
  box-shadow: var(--shadow);
  margin-bottom:12px;
  font-weight:600;
}

.grid{
  display:grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap:14px;
  margin: 14px 0 28px;
}
.card{
  display:block;
  text-decoration:none;
  background: var(--white);
  border-radius: var(--radius);
  padding:16px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(15,53,84,.12);
}
.card:hover{ transform: translateY(-2px); }
.card__title{ font-weight:800; margin:0 0 6px; }
.card__desc{ margin:0; opacity:.85; line-height:1.45; }

.row{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  align-items:center;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius: 12px;
  padding: 10px 12px;
  border: 1px solid rgba(15,53,84,.18);
  background: rgba(255,255,255,.65);
  text-decoration:none;
  font-weight:700;
}
.btn:hover{ background: rgba(255,255,255,.78); }

/* Footer */
.footer{
  background: var(--ink);
  color:#fff;
  padding: 18px 0;
  margin-top: 36px;
}
.footer__inner{
  display:flex;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  opacity:.92;
}

@media (max-width: 980px){
  .grid{ grid-template-columns: repeat(2, minmax(0,1fr)); }
}
@media (max-width: 780px){
  .nav{ display:none; }
  .burger{ display:inline-flex; }
  .grid{ grid-template-columns: 1fr; }
  .brand-text{ display:none; } /* logo seul sur mobile */
}