*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:"Inter","Helvetica Neue",Arial,sans-serif;color:#1f2937;background:#ffffff;line-height:1.65;font-size:16px}
img{max-width:100%;height:auto;display:block}
a{color:#0f5fa6;text-decoration:none;transition:color .2s}
a:hover{color:#083e6e}
h1,h2,h3,h4{font-family:"Inter","Helvetica Neue",Arial,sans-serif;color:#0f172a;line-height:1.25;margin:0 0 .6em;font-weight:600;letter-spacing:-.01em}
h1{font-size:clamp(2rem,4vw,2.75rem);font-weight:700}
h2{font-size:clamp(1.5rem,2.6vw,2rem)}
h3{font-size:1.15rem}
p{margin:0 0 1em}
.container{max-width:1180px;margin:0 auto;padding:0 24px}
.skip-link{position:absolute;left:-9999px;top:0;background:#0f172a;color:#fff;padding:8px 14px;z-index:1000}
.skip-link:focus{left:8px;top:8px}

/* Header */
.site-header{position:sticky;top:0;background:#0B2A63;);backdrop-filter:saturate(1.1) blur(8px);border-bottom:1px solid #eef1f5;z-index:50}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:16px 0;gap:24px;}
.brand{display:flex;align-items:center;gap:12px;font-weight:700;color:#0f172a;font-size:1.15rem;letter-spacing:.01em}
.brand-mark{width:100px;height:70px;;display:grid;place-items:center;color:#fff;font-weight:700}
.main-nav ul{list-style:none;margin:0;padding:0;display:flex;gap:28px}
.main-nav a{color:white;font-weight:500;font-size:.98rem;position:relative;padding:6px 0}
.main-nav a.active,.main-nav a:hover{color:#AED6F2}
.main-nav a.active::after{content:"";position:absolute;left:1;right:1;bottom:-2px;height:2px;background:#0f5fa6;border-radius:2px}
.nav-cta{background:#0f5fa6;color:#fff !important;padding:10px 18px;border-radius:6px;font-weight:600}
.nav-cta:hover{background:#083e6e}

/* Hero */
.hero{padding:72px 0 56px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero .eyebrow{color:#0f5fa6;font-weight:600;letter-spacing:.14em;text-transform:uppercase;font-size:.82rem;margin:0 0 14px}
.hero p.lead{font-size:1.08rem;color:#475569;max-width:56ch}
.hero-image{border-radius:12px;overflow:hidden;box-shadow:0 20px 40px -22px rgba(15,95,166,.35)}
.hero-image img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.hero-cta{margin-top:26px;display:flex;gap:14px;flex-wrap:wrap}
.btn-primary{background:#0f5fa6;color:#fff;padding:13px 24px;border-radius:6px;font-weight:600;display:inline-block;transition:background .2s,transform .2s}
.btn-primary:hover{background:#083e6e;color:#fff;transform:translateY(-1px)}
.btn-ghost{border:1px solid #cbd5e1;color:#0f172a;padding:12px 22px;border-radius:6px;font-weight:600;display:inline-block}
.btn-ghost:hover{border-color:#0f5fa6;color:#0f5fa6}

/* Sections */
section{padding:64px 0}
.section-title{max-width:780px;margin-bottom:36px}
.section-title .eyebrow{color:#0f5fa6;font-weight:600;letter-spacing:.14em;text-transform:uppercase;font-size:.82rem;margin:0 0 12px}
.muted{color:#475569}

/* Text + image alternées (page interne) */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;margin:40px 0}
.split.reverse{direction:rtl}
.split.reverse > *{direction:ltr}
.split figure{margin:0;border-radius:10px;overflow:hidden}
.split figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}

.checklist{list-style:none;padding:0;margin:20px 0 0;display:grid;gap:14px}
.checklist li{position:relative;padding-left:30px;color:#334155}
.checklist li::before{content:"";position:absolute;left:0;top:.55em;width:14px;height:14px;border-radius:3px;background:linear-gradient(135deg,#0f5fa6,#2aa9e0)}

/* Flip cards (prestations) */
.cards-row{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:24px}
.flip{perspective:1200px;height:320px}
.flip a{display:block;height:100%;color:inherit}
.flip-inner{position:relative;width:100%;height:100%;transition:transform .7s cubic-bezier(.4,.2,.2,1);transform-style:preserve-3d}
.flip:hover .flip-inner,.flip:focus-within .flip-inner{transform:rotateY(180deg)}
.flip-face{position:absolute;inset:0;-webkit-backface-visibility:hidden;backface-visibility:hidden;border-radius:12px;padding:32px;display:flex;flex-direction:column;justify-content:space-between;border:1px solid #e5e9f0;background:#fff;box-shadow:0 10px 30px -22px rgba(15,23,42,.25)}
.flip-back{transform:rotateY(180deg);background:linear-gradient(135deg,#0f5fa6,#1f7bbf);color:#fff;border-color:transparent}
.flip-back h3{color:#fff}
.flip-num{font-size:.8rem;font-weight:700;letter-spacing:.2em;color:#0f5fa6}
.flip-back .flip-num{color:rgba(255,255,255,.85)}
.flip-face p{margin:0;color:#475569}
.flip-back p{color:rgba(255,255,255,.92)}
.flip-cta{font-weight:600;color:#0f5fa6}
.flip-back .flip-cta{color:#fff}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:start}
.contact-form{display:grid;gap:16px}
.contact-form label{font-weight:500;color:#0f172a;font-size:.95rem;display:grid;gap:6px}
.contact-form input,.contact-form textarea,.contact-form select{font:inherit;color:#0f172a;padding:11px 14px;border:1px solid #d1d5db;border-radius:6px;background:#fff;transition:border-color .2s,box-shadow .2s}
.contact-form input:focus,.contact-form textarea:focus,.contact-form select:focus{outline:none;border-color:#0f5fa6;box-shadow:0 0 0 3px rgba(15,95,166,.15)}
.contact-form textarea{min-height:140px;resize:vertical}
.contact-info h3{margin-top:0}
.contact-info ul{list-style:none;padding:0;margin:0;display:grid;gap:14px;color:#475569}
.contact-info strong{color:#0f172a}

/* Callout */
.callout{margin-top:48px;padding:40px;border-radius:12px;background:linear-gradient(135deg,#f8fbff,#eef4fb);border:1px solid #e2ecf6;display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.callout h2{margin:0 0 6px}
.callout p{margin:0;color:#475569}

/* Footer */
.site-footer{background:#0f172a;color:#cbd5e1;padding:56px 0 24px;margin-top:64px}
.site-footer h4{color:#fff;margin-top:0;font-size:1rem}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.site-footer a{color:#cbd5e1}
.site-footer a:hover{color:#fff}
.site-footer ul{list-style:none;padding:0;margin:0;display:grid;gap:8px}
.footer-bottom{border-top:1px solid #1e293b;margin-top:32px;padding-top:20px;text-align:center;font-size:.88rem;color:#94a3b8}

/* Legal page */
.legal{padding:56px 0 24px}
.legal h2{margin-top:36px}
.legal p,.legal li{color:#334155}

/* Responsive */
@media (max-width:960px){
  .hero-grid,.contact-grid,.split{grid-template-columns:1fr}
  .cards-row{grid-template-columns:1fr;gap:20px}
  .flip{height:280px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .main-nav ul{gap:16px}
}
@media (max-width:640px){
  .header-inner{flex-direction:column;align-items:flex-start;gap:12px}
  .footer-grid{grid-template-columns:1fr}
  section{padding:48px 0}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  .flip:hover .flip-inner{transform:none}
}