:root{
  /* Palette claire mais pas trop blanche */
  --bg:#eef2f7;          /* fond global gris bleuté doux */
  --paper:#ffffff;       /* cartes blanches */
  --ink:#0f172a;         /* texte principal (bleu très foncé) */
  --muted:#475569;       /* texte secondaire gris bleuté */
  --brand:#3b82f6;       /* bleu clair (CTA, nav, boutons) */
  --brand-2:#1e40af;     /* bleu foncé (hover/accents) */
  --stroke:#dbe2ea;      /* bordures claires */
  --radius:16px;
  --shadow:0 8px 24px rgba(2,6,23,.06);
}

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

/* Layout */
.container{max-width:1120px;margin-inline:auto;padding:0 20px}
.grid{display:grid;gap:24px}
.two-col{grid-template-columns:1fr 1fr}
.center{display:grid;place-items:center}
.inline{display:flex;gap:12px;flex-wrap:wrap;align-items:center}

/* Boutons : TOUS bleus */
.btn{
  display:inline-flex;align-items:center;gap:.6rem;
  padding:.9rem 1.2rem;border-radius:999px;font-weight:600;
  border:1px solid transparent;color:#fff;
  background:linear-gradient(180deg,var(--brand),#2563eb);
  box-shadow:var(--shadow);
  transition:filter .15s ease, transform .15s ease;
}
.btn:hover{filter:saturate(1.05) brightness(1.03);transform:translateY(-1px)}
.btn.primary{ /* redondant mais au cas où dans ton HTML */
  background:linear-gradient(180deg,var(--brand),#2563eb);
  color:#fff;
}

/* Badges */
.chip{
  display:inline-flex;align-items:center;gap:.5rem;
  padding:.35rem .7rem;border:1px solid #bfdbfe;border-radius:999px;
  font-size:.8rem;color:#1e3a8a;background:#eaf2ff;
}

/* Sections & cartes */
.section{padding:72px 0;background:#f6f8fb}
.section:nth-of-type(even){background:#ffffff}
.card{
  background:var(--paper);border:1px solid var(--stroke);
  border-radius:var(--radius);box-shadow:var(--shadow);
}
.card.pad{padding:20px}
.muted{color:var(--muted)}

/* Header clair (nav = boutons bleus) */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.9);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--stroke);
}
.nav{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.brand{display:flex;align-items:center;gap:10px}
.logo{width:80px;height:80px}
.brand-name{font-size:1.05rem;letter-spacing:.2px;color:#0b1531}
.main-nav ul{display:flex;gap:12px;list-style:none;margin:0;padding:0}
.main-nav a{
  display:inline-flex;align-items:center;
  padding:10px 14px;border-radius:999px;
  background:linear-gradient(180deg,var(--brand),#2563eb);
  color:#fff;border:1px solid transparent;box-shadow:var(--shadow);
  transition:filter .15s ease, transform .15s ease;
}
.main-nav a:hover{filter:saturate(1.05) brightness(1.03);transform:translateY(-1px)}
.burger{
  display:none;border:1px solid var(--stroke);padding:8px 10px;border-radius:10px;
  color:#fff;background:linear-gradient(180deg,var(--brand),#2563eb)
}
.mobile-menu{display:flex;gap:8px;flex-wrap:wrap;max-width:1120px;margin:0 auto;padding:8px 20px}

/* Hero clair */
.hero{
  padding:86px 0;
  background:linear-gradient(180deg,#ffffff 0%, #f3f6fb 100%);
}
.hero-inner{display:grid;grid-template-columns:1.2fr .8fr;gap:32px;align-items:center}
.hero h1{font-size:clamp(2.2rem,4vw,3.2rem);line-height:1.1;margin:.2rem 0;color:#0b1531}
.hero p{color:var(--muted);max-width:60ch}
.hero-visual{position:relative}
.glass{
  position:absolute;inset:-18px -10px -10px -18px;
  background:linear-gradient(180deg,rgba(59,130,246,.08),rgba(59,130,246,.02));
  border:1px solid #dbeafe;border-radius:22px;transform:rotate(-2deg)
}
.mock{
  position:relative;padding:18px;border-radius:18px;background:#ffffff;
  border:1px solid var(--stroke);box-shadow:var(--shadow)
}

/* Services */
.section-head{display:flex;align-items:end;justify-content:space-between;margin-bottom:18px}
.svc-grid{grid-template-columns:repeat(4,minmax(0,1fr))}
.svc .card{padding:18px}
.svc h3{margin:.4rem 0;font-size:1.05rem;color:#0b1531}

/* Galerie */
.gallery{grid-template-columns:repeat(3,minmax(0,1fr))}
.thumb{aspect-ratio:1/1.1;border-radius:14px;overflow:hidden;border:1px solid var(--stroke);background:#f1f5f9}
.thumb img{width:100%;height:100%;object-fit:cover}

/* Étapes */
.steps{grid-template-columns:repeat(4,minmax(0,1fr))}
.step{padding:18px}
.step .num{
  width:34px;height:34px;border-radius:999px;display:grid;place-items:center;
  background:#eaf2ff;color:#1e3a8a;border:1px solid #cfe2ff;margin-bottom:.6rem;font-weight:700
}

/* Footer */
.site-footer{border-top:1px solid var(--stroke);padding:28px 0;color:#64748b;background:#ffffff}

/* Formulaire */
form{display:grid;gap:14px}
input,textarea{
  width:100%;padding:12px 14px;border-radius:12px;
  border:1px solid var(--stroke);background:#ffffff;color:var(--ink);
}
input:focus, textarea:focus{outline:2px solid #bfdbfe;border-color:#93c5fd}
textarea{min-height:140px;resize:vertical}

/* Animations */
.reveal{opacity:0;transform:translateY(8px);transition:.5s ease}
.reveal.active{opacity:1;transform:none}

/* Responsive */
@media (max-width: 920px){
  .hero-inner{grid-template-columns:1fr}
  .svc-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .gallery{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width: 680px){
  .main-nav ul{display:none}
  .burger{display:inline-flex;gap:10px;align-items:center}
  .svc-grid{grid-template-columns:1fr}
  .gallery{grid-template-columns:1fr}
  .two-col{grid-template-columns:1fr}
}
/* Cacher le menu mobile en grand écran */
@media (min-width: 681px) {
  #mobileMenu { display: none !important; }
}
/* Arrondir uniquement les images des cartes services */
.svc .card img {
  width: 100%;
  height: 180px;         /* garde la même taille pour toutes les images */
  object-fit: cover;     /* recadrage sans déformation */
  border-radius: 12px;   /* arrondi des coins */
}
/* Partenaires */
.partners-grid {
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  align-items: center;
  justify-items: center;
}

.partner-card {
  background: #fff;
  border: 1px solid var(--stroke);
  border-radius: 12px;
  padding: 20px;
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100px;
}

.partner-card img {
  max-height: 60px;
  max-width: 100%;
  object-fit: contain;
  filter: grayscale(100%);   /* logos en noir et blanc */
  opacity: 0.8;
  transition: 0.3s;
}

.partner-card img:hover {
  filter: none;              /* couleur au survol */
  opacity: 1;
}
/* Formulaire premium */
.form-card{
  background:#fff;
  border:1px solid var(--stroke);
  border-radius:22px;
  padding:24px;
  box-shadow:0 10px 30px rgba(2,6,23,.06);
}
.form-head h3{ margin:0 0 4px; color:#0b1531 }
.form-head p{ margin:0 0 12px }

.field{ display:grid; gap:8px }
.input{
  border:1px solid var(--stroke);
  background:#fff;
  border-radius:14px;
  padding:6px;
  transition:border-color .15s ease, box-shadow .15s ease;
}
.input:focus-within{
  border-color:#93c5fd;
  box-shadow:0 0 0 4px #e0efff;
}
.input.with-icon{ display:flex; align-items:center; gap:8px; padding-left:10px }
.input.with-icon svg{
  width:18px; height:18px; flex:none; fill:#94a3b8;
}
.input input, .input textarea{
  width:100%;
  border:0; outline:0;
  background:transparent;
  color:var(--ink);
  padding:10px 12px;
  border-radius:10px;
  font:inherit;
}
.input textarea{ min-height:140px; resize:vertical }

.actions{ display:flex; gap:12px; align-items:center; margin-top:10px }

/* Toast */
.toast{
  position: fixed;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%) translateY(20px);
  background:#0ea5e9;
  color:#fff;
  padding:10px 14px;
  border-radius:999px;
  box-shadow:0 10px 24px rgba(2,6,23,.2);
  opacity:0;
  pointer-events:none;
  transition: opacity .25s ease, transform .25s ease;
  font-weight:600;
}
.toast.show{
  opacity:1;
  transform: translateX(-50%) translateY(0);
}

/* Petites corrections sur les inputs en deux colonnes */
@media (max-width: 680px){
  .two-col{ grid-template-columns:1fr !important; }
}