:root{
  --bg:#0f1b2d;
  --primary:#1d3c6a;
  --accent:#21b2e3;
  --muted:#f3f6fa;
  --text:#0d1321;
}

/* Base */
*{box-sizing:border-box}
html,body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--text);scroll-behavior:smooth}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}

/* Header */
header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid #e7edf5}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
.bar{display:flex;align-items:center;justify-content:space-between;height:70px}
.logo{display:flex;align-items:center;gap:12px;font-weight:700}
.logo img{height:40px;width:auto}
nav ul{display:flex;gap:22px;list-style:none;margin:0;padding:0}
nav a{font-weight:600;opacity:.9}
nav a:hover{opacity:1}

/* Boutons */
.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 20px;border-radius:999px;font-weight:700}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{filter:brightness(1.06)}
.btn-ghost{border:1px solid #d7e0ea}

/* Hero */
.hero{background:linear-gradient(135deg,#ffffff 0%,#f7fbff 60%,#eef6ff 100%);padding:48px 0 24px}
.grid-hero{display:grid;grid-template-columns:1.2fr 1fr;align-items:center;gap:32px}
.kicker{display:inline-block;padding:6px 12px;border:1px solid #d7e0ea;border-radius:999px;font-size:14px;margin-bottom:12px}
h1{font-size:44px;line-height:1.12;margin:0 0 12px}
.lead{font-size:18px;color:#44546b;margin:0 0 22px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap}
.hero-img{border-radius:18px;overflow:hidden;box-shadow:0 10px 30px rgba(13,19,33,.08)}
.hero-img img{width:100%;height:100%;max-height:520px;object-fit:cover}

/* Sections */
section{padding:72px 0}
.title{font-size:32px;margin:0 0 10px;text-align:center}
.sub{color:#5b6b82;text-align:center;margin:0 auto 34px;max-width:760px}

/* Cartes Services */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{background:#fff;border:1px solid #e7edf5;border-radius:14px;overflow:hidden;box-shadow:0 6px 18px rgba(13,19,33,.04)}
.card .media{height:220px;background:#eaf4ff}
.card .media img{width:100%;height:100%;object-fit:cover}
.card .body{padding:18px}
.card h3{margin:0 0 6px;font-size:20px}
.card p{margin:0;color:#5b6b82}

/* Étapes */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.step{border:1px dashed #d7e0ea;border-radius:14px;padding:20px;background:#fff}
.step b{display:inline-flex;align-items:center;gap:8px}

/* Bandeau CTA */
.cta{background:var(--bg);color:#fff;padding:44px 0}
.cta .inner{display:flex;align-items:center;justify-content:space-between;gap:20px}

/* Contact */
.contact{display:grid;grid-template-columns:1.1fr .9fr;gap:26px}
form label{font-weight:600;font-size:14px;margin-top:10px;display:block}
input,textarea{width:100%;padding:12px 14px;border:1px solid #d7e0ea;border-radius:12px;font:inherit}
textarea{min-height:120px;resize:vertical}

/* Formulaire lisible (grille) */
.contact form{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:14px;
}
#nom,#email,#tel{width:100%}
#msg{grid-column:1 / -1}
.contact form .btn,
.contact form .btn-ghost{grid-column:auto}

/* Footer */
footer{background:#0f1b2d;color:#b8c1d1;padding:34px 0;margin-top:40px}
footer a{color:#e8f4ff}

/* Responsive */
@media(max-width:980px){
  .grid-hero{grid-template-columns:1fr}
  .cards{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr}
  .contact{grid-template-columns:1fr}
  .contact form{grid-template-columns:1fr}
  #msg,.contact form .btn,.contact form .btn-ghost{grid-column:1}
  .cta .inner{flex-direction:column;text-align:center}
}
/* Logo plus grand et lisible */
.logo img { height: 70px; width: auto; }
/* Optionnel: header un poil plus haut */
.bar { height: 76px; }