:root{
  --brand-blue:#1e5aa0;
  --brand-gold:#c7a461;
  --accent:#e85c4a;
  --text:#222;
  --muted:#6b7280;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";color:var(--text);line-height:1.6}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
.container{max-width:1100px;margin:0 auto;padding:0 16px}

/* Header */
.site-header{background:var(--brand-blue);color:#fff;position:sticky;top:0;z-index:50}
.navbar{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.brand{font-weight:700;letter-spacing:.3px}
.nav{display:flex;gap:18px;align-items:center}
.nav a{color:#fff;opacity:.9;font-weight:600;padding:6px 10px;border-radius:8px}
.nav a.active,.nav a:hover{background:rgba(255,255,255,.12);opacity:1}

/* Mobile nav */
.burger{display:none;width:40px;height:40px;border-radius:10px;border:1px solid rgba(255,255,255,.4);align-items:center;justify-content:center}
@media(max-width:860px){
  .nav{display:none;position:absolute;top:58px;left:0;right:0;background:var(--brand-blue);flex-direction:column;padding:12px}
  .nav.show{display:flex}
  .burger{display:flex}
}

/* Hero */
.hero {
  position: relative;
  background: #f5f7fb;
  color: #fff;
}

/* Image de fond paramétrable */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url('../images/JDSM.png');
  background-size: var(--hero-size, cover); /* <-- Ici tu choisis */
  background-position: var(--hero-position, center);
  filter: brightness(.5);
}

/* Contenu texte */
.hero .overlay {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 52vh;
  text-align: center;
}

.hero h1 {
  font-size: clamp(28px, 5vw, 48px);
  margin: 0;
}


/* Sections */
.section{padding:38px 0}
.card{background:#fff;border-radius:18px;box-shadow:0 10px 30px rgba(0,0,0,.06);padding:22px}
.grid{display:grid;gap:20px}
.grid-2{grid-template-columns:1fr 1fr}
@media(max-width:900px){.grid-2{grid-template-columns:1fr}}

/* Footer */
footer{margin-top:40px;border-top:1px solid #eee;background:#fff}
.footer-top{background:var(--brand-gold);height:16px}
.footer-content{padding:28px 0;font-size:15px}
.footer-grid{display:grid;gap:18px;grid-template-columns:repeat(auto-fit,minmax(180px,1fr))}
.footer-col h4{margin:0 0 6px 0;font-size:16px}
.footer-note{padding:14px 0;color:#fff;background:var(--brand-blue);text-align:center;font-size:14px}

/* Utilities */
.btn{display:inline-block;background:var(--accent);color:white;padding:10px 16px;border-radius:10px;font-weight:700}
.input, textarea{width:100%;padding:12px 14px;border:1px solid #e5e7eb;border-radius:12px}
label{font-weight:600;font-size:14px;color:#374151}
.form-row{display:grid;gap:14px;margin-bottom:12px}