:root{
  --bg:#ffffff; --txt:#0f172a; --muted:#475569; --border:#e2e8f0;
  --brand:#06b6d4; --brand2:#8b5cf6; --container:1180px; --radius:18px;
}

*{box-sizing:border-box}
html,body{margin:0;background:#ffffff;color:var(--txt);
  font-family:Arial, Helvetica, sans-serif;font-size:18px;line-height:1.65}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}

/* Header (plus haut) */
header.site{position:sticky;top:0;z-index:50;background:#ffffff;
  border-bottom:1px solid var(--border);backdrop-filter:saturate(180%) blur(14px)}
.nav{display:flex;align-items:center;justify-content:space-between;padding:32px 0}
.logo img{width:200px;height:auto}
.menu{display:flex;gap:12px;align-items:center}
.menu a{padding:12px 14px;border-radius:10px;color:#334155;font-weight:700;position:relative;transition:color .25s ease}
.menu a:hover{color:#0f172a}
.menu a::after{content:"";position:absolute;left:14px;right:14px;bottom:8px;height:2px;
  background:linear-gradient(90deg,var(--brand),var(--brand2));transform:scaleX(0);transform-origin:center;transition:transform .25s ease}
.menu a:hover::after{transform:scaleX(1)}
.btn{display:inline-flex;align-items:center;gap:.55rem;padding:1rem 1.3rem;border-radius:999px;border:1px solid var(--border)}

/* Titres (couleurs du logo) */
h1,h2,h3{margin:0 0 14px}
.h1{font-size:52px;line-height:1.05;font-weight:900}
.h2{font-size:34px;line-height:1.2;font-weight:800}
h1,h2,h3{
  background:linear-gradient(90deg,var(--brand),var(--brand2));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}

/* Centrage des titres et des paragraphes qui suivent */
h1.h1, h2.h2 { text-align:center; }
h1.h1 + .lead, h2.h2 + .lead { text-align:center; }
h1.h1 ~ .lead, h2.h2 ~ .lead, h3 ~ .lead { text-align:center; }

/* Sections */
.hero{padding:96px 0}
.section{padding:72px 0}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:start}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{background:#ffffff;border:1px solid var(--border);border-radius:var(--radius);padding:26px;
  box-shadow:0 8px 20px rgba(2,6,23,.03);transition:transform .25s ease, box-shadow .25s ease}
.card:hover{transform:translateY(-4px);box-shadow:0 12px 28px rgba(2,6,23,.06)}
.lead{color:var(--muted);font-size:20px;margin:0 0 10px}
.input, textarea{background:#fff;border:1px solid var(--border);border-radius:12px;padding:12px 14px;width:100%;font-family:Arial, Helvetica, sans-serif;font-size:16px}
form .row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
button.btn{background:#fff}

/* Footer (plus haut) */
footer.site{border-top:1px solid var(--border);background:#ffffff}
.footer-wrap{padding:56px 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:24px}
.footer-col h4{margin:0 0 12px;font-size:20px}
.small{font-size:16px;color:#64748b}
.footer-map{width:100%;height:300px;border:0;border-radius:12px;box-shadow:0 8px 20px rgba(2,6,23,.06)}
/* Centrage du logo + tagline dans le footer */
.footer-grid > div:first-child { text-align: center; }
.footer-grid > div:first-child .logo { display:flex; justify-content: center; }
.footer-grid > div:first-child .lead { text-align: center; }
.container.small{font-size:14px;color:#64748b;text-align:center;padding:10px 0;border-top:1px solid var(--border)}

/* Animations "reveal" */
[data-reveal]{opacity:0;transform:translateY(14px);transition:transform .6s ease, opacity .6s ease}
.show{opacity:1!important;transform:translateY(0)!important}

/* Responsive */
@media(max-width:1020px){
  .grid-2{grid-template-columns:1fr}
  .cards{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .logo img{width:180px}
  .h1{font-size:42px}
  .h2{font-size:28px}
  .lead{font-size:18px}
}