@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800&family=Inter:wght@400;500;600&display=swap');

:root{
  --blue-dark:#0E3A56;
  --blue:#1B6E9C;
  --blue-light:#5FA8CC;
  --sky:#EAF4F8;
  --white:#FFFFFF;
  --ink:#16232B;
  --grey:#5B6B73;
  --gold:#B08D57;
  --line:#DCE8ED;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  background:var(--white);
  color:var(--ink);
  font-family:'Inter',sans-serif;
  overflow-x:hidden;
}
h1,h2,h3,h4{font-family:'Poppins',sans-serif;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
.wrap{max-width:1280px;margin:0 auto;padding:0 6vw;}
.sr-only{position:absolute !important;width:1px !important;height:1px !important;padding:0 !important;margin:-1px !important;overflow:hidden !important;clip:rect(0,0,0,0) !important;clip-path:inset(50%) !important;white-space:nowrap !important;border:0 !important;font-size:1px !important;}

.reveal{opacity:0;transform:translateY(24px);transition:opacity .8s ease,transform .8s ease;}
.reveal.in{opacity:1;transform:translateY(0);}

/* --- nav --- */
nav.topnav{
  position:fixed;top:0;left:0;right:0;z-index:150;
  display:flex;justify-content:space-between;align-items:center;
  padding:1rem 6vw;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.brand{display:flex;align-items:center;}
.brand-logo{height:52px;width:auto;}
.navlinks{display:flex;gap:2.2rem;align-items:center;}
.navlinks a{font-size:.88rem;font-weight:500;color:var(--blue-dark);transition:color .2s;}
.navlinks a:hover{color:var(--gold);}
.nav-cta{
  font-size:.85rem;font-weight:600;
  background:var(--blue);color:var(--white);
  padding:.75rem 1.5rem;border-radius:30px;
  transition:.2s;
}
.nav-cta:hover{background:var(--blue-dark);}
.mobile-only-cta{display:none;}

.hamburger{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:32px;height:32px;background:none;border:none;cursor:pointer;z-index:160;
}
.hamburger span{display:block;width:100%;height:2px;background:var(--blue-dark);transition:transform .25s,opacity .25s;}
.hamburger.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.hamburger.open span:nth-child(2){opacity:0;}
.hamburger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

@media(max-width:900px){
  .navlinks{display:none;}
  .hamburger{display:flex;}
  .nav-cta{display:none;}
  .navlinks{
    display:flex;flex-direction:column;
    position:fixed;top:0;right:0;width:min(78vw,320px);height:100vh;
    background:var(--white);border-left:1px solid var(--line);
    padding:6.5rem 2rem 2rem;gap:.3rem;
    transform:translateX(100%);transition:transform .3s ease;z-index:145;
  }
  .navlinks.mobile-open{transform:translateX(0);}
  .navlinks a{padding:1rem 0;border-bottom:1px solid var(--line);font-size:1rem;}
  .mobile-only-cta{
    display:block;margin-top:1rem;background:var(--blue);color:var(--white) !important;
    text-align:center;padding:1rem !important;border:none !important;border-radius:8px;
    font-weight:600;font-size:.9rem !important;
  }
}
.nav-overlay{display:none;position:fixed;inset:0;background:rgba(14,58,86,.4);z-index:90;}
.nav-overlay.open{display:block;}

/* --- hero --- */
.hero{
  min-height:100vh;position:relative;display:flex;align-items:center;
  padding:9rem 0 4rem;
  background:linear-gradient(160deg,var(--sky) 0%,#DCEDF4 55%,#CFE6EF 100%);
  overflow:hidden;
}
.hero::before{
  content:'';position:absolute;top:-10%;right:-10%;width:60vw;height:60vw;
  background:radial-gradient(circle,rgba(95,168,204,.25),transparent 70%);
  border-radius:50%;
}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:4vw;align-items:center;position:relative;z-index:2;}
.hero-eyebrow{font-size:.82rem;letter-spacing:.15em;text-transform:uppercase;color:var(--gold);font-weight:600;margin-bottom:1.2rem;}
.hero h1{font-size:clamp(2.4rem,5.5vw,4rem);font-weight:800;color:var(--blue-dark);line-height:1.08;}
.hero h1 span{color:var(--blue);}
.hero p{margin-top:1.4rem;font-size:1.1rem;color:var(--grey);max-width:46ch;line-height:1.7;}
.hero-buttons{margin-top:2.2rem;display:flex;gap:1rem;flex-wrap:wrap;}
.btn{font-size:.9rem;font-weight:600;padding:1rem 2rem;border-radius:30px;transition:.25s;border:2px solid transparent;cursor:pointer;font-family:'Inter',sans-serif;display:inline-block;}
.btn-blue{background:var(--blue);color:var(--white);}
.btn-blue:hover{background:var(--blue-dark);}
.btn-outline{border-color:var(--blue);color:var(--blue);background:var(--white);}
.btn-outline:hover{background:var(--blue);color:var(--white);}

.hero-visual{
  position:relative;aspect-ratio:1/1;border-radius:50%;
  background:linear-gradient(160deg,var(--blue-light),var(--blue));
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 30px 70px rgba(14,58,86,.25);
}
.hero-visual img{width:55%;filter:drop-shadow(0 10px 20px rgba(0,0,0,.15));}

.trust-strip{background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.trust-strip .wrap{display:flex;justify-content:space-between;padding:1.2rem 6vw;flex-wrap:wrap;gap:1rem;}
.trust-strip div{font-size:.8rem;color:var(--grey);font-weight:500;}
.trust-strip b{color:var(--blue-dark);}

/* --- sections --- */
section{padding:6rem 0;}
.section-label{font-size:.78rem;letter-spacing:.15em;text-transform:uppercase;color:var(--gold);font-weight:700;margin-bottom:1rem;}
.section-title{font-size:clamp(1.8rem,4vw,2.6rem);font-weight:800;color:var(--blue-dark);max-width:20ch;line-height:1.15;}
.section-title.center{margin:0 auto;text-align:center;max-width:28ch;}
.lead{color:var(--grey);font-size:1.05rem;max-width:56ch;margin-top:1.2rem;line-height:1.75;}
.lead.center{margin-left:auto;margin-right:auto;text-align:center;}

/* --- services --- */
.services-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.4rem;margin-top:3.5rem;}
.service-card{
  background:var(--sky);border-radius:18px;padding:2.4rem 1.8rem;
  transition:transform .25s,box-shadow .25s;border:1px solid var(--line);
}
.service-card:hover{transform:translateY(-6px);box-shadow:0 20px 40px rgba(14,58,86,.12);}
.service-icon{
  width:56px;height:56px;border-radius:14px;background:var(--blue);
  display:flex;align-items:center;justify-content:center;font-size:1.5rem;margin-bottom:1.2rem;color:var(--white);
}
.service-card h3{font-size:1.15rem;font-weight:700;color:var(--blue-dark);margin-bottom:.6rem;}
.service-card p{color:var(--grey);font-size:.92rem;line-height:1.6;}
@media(max-width:1100px){.services-grid{grid-template-columns:1fr 1fr;}}
@media(max-width:600px){.services-grid{grid-template-columns:1fr;}}

/* --- why --- */
.why{background:var(--blue-dark);color:var(--white);}
.why .section-label{color:var(--blue-light);}
.why .section-title{color:var(--white);}
.why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:2rem;margin-top:3.5rem;}
.areas-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:2rem;margin-top:2.5rem;}
.areas-grid h4{font-size:.95rem;color:var(--gold);margin-bottom:.6rem;}
.areas-grid p{color:var(--grey);font-size:.82rem;line-height:1.6;}
@media(max-width:900px){.areas-grid{grid-template-columns:1fr 1fr;}}
.why-item{text-align:center;}
.why-icon{width:54px;height:54px;border:1px solid var(--blue-light);border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 1rem;color:var(--gold);font-weight:700;}
.why-item h4{font-size:1rem;font-weight:600;margin-bottom:.5rem;}
.why-item p{color:#B9CBD6;font-size:.85rem;}
@media(max-width:900px){.why-grid{grid-template-columns:1fr 1fr;}}

/* --- process --- */
.timeline{display:flex;flex-wrap:wrap;margin-top:3.5rem;counter-reset:step;}
.tl-step{flex:1;min-width:150px;text-align:center;padding:0 1rem;}
.tl-step::before{
  counter-increment:step;content:counter(step);
  width:44px;height:44px;border-radius:50%;background:var(--blue);color:var(--white);
  display:flex;align-items:center;justify-content:center;margin:0 auto 1rem;font-weight:700;
}
.tl-step h4{font-size:.88rem;font-weight:600;color:var(--blue-dark);}
@media(max-width:900px){.timeline{flex-direction:column;gap:1.6rem;}}

/* --- devis --- */
.devis{background:var(--sky);}
.devis-box{max-width:760px;margin:3rem auto 0;background:var(--white);border-radius:20px;padding:3rem;box-shadow:0 20px 50px rgba(14,58,86,.1);}
.devis-progress{display:flex;gap:.4rem;margin-bottom:2.2rem;}
.devis-progress span{flex:1;height:4px;border-radius:2px;background:var(--line);}
.devis-progress span.done{background:var(--blue);}
.devis-step{display:none;}
.devis-step.active{display:block;animation:fadein .4s ease;}
@keyframes fadein{from{opacity:0;transform:translateY(8px);}to{opacity:1;transform:translateY(0);}}
.devis-step h3{font-size:1.15rem;font-weight:700;color:var(--blue-dark);margin-bottom:1.4rem;}
.option-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:.8rem;}
.opt{border:2px solid var(--line);border-radius:10px;padding:1rem 1.2rem;font-size:.9rem;cursor:pointer;transition:.2s;color:var(--ink);}
.opt:hover{border-color:var(--blue-light);}
.opt.selected{border-color:var(--blue);background:var(--sky);color:var(--blue-dark);font-weight:600;}
.devis-box input[type=text],.devis-box input[type=email],.devis-box input[type=tel],.devis-box input[type=date],.devis-box textarea,.devis-box input[type=file]{
  width:100%;background:var(--white);border:1px solid var(--line);border-radius:8px;color:var(--ink);
  padding:.9rem 1rem;font-family:'Inter',sans-serif;font-size:.92rem;margin-bottom:1rem;
}
.devis-box input:focus,.devis-box textarea:focus{outline:none;border-color:var(--blue);}
.devis-box label.small{font-size:.75rem;color:var(--grey);letter-spacing:.05em;text-transform:uppercase;display:block;margin-bottom:.5rem;}
.devis-nav{display:flex;justify-content:space-between;margin-top:2rem;}
.devis-nav button{background:none;border:2px solid var(--line);border-radius:30px;color:var(--ink);padding:.85rem 1.8rem;font-size:.85rem;font-weight:600;cursor:pointer;}
.devis-nav button.next{border-color:var(--blue);color:var(--blue);}
.devis-nav button:disabled{opacity:.3;cursor:not-allowed;}
.devis-confirm{display:none;text-align:center;padding:2rem 0;}
.devis-confirm.active{display:block;}
.devis-confirm .check{width:60px;height:60px;border-radius:50%;background:var(--blue);color:var(--white);display:flex;align-items:center;justify-content:center;margin:0 auto 1.5rem;font-size:1.6rem;}

/* --- footer --- */
footer{background:var(--blue-dark);color:#B9CBD6;padding:4rem 0 2rem;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:2.5rem;}
.footer-logo{height:44px;filter:brightness(0) invert(1);margin-bottom:1rem;}
.footer-grid h4{font-size:.85rem;letter-spacing:.08em;text-transform:uppercase;color:var(--gold);margin-bottom:1.1rem;}
.footer-grid p,.footer-grid a{display:block;color:#B9CBD6;font-size:.88rem;margin-bottom:.6rem;}
.footer-bottom{margin-top:3rem;padding-top:2rem;border-top:1px solid rgba(255,255,255,.15);display:flex;justify-content:space-between;flex-wrap:wrap;gap:1rem;font-size:.75rem;}
@media(max-width:900px){.footer-grid{grid-template-columns:1fr;}.hero-grid{grid-template-columns:1fr;}.hero-visual{max-width:320px;margin:0 auto;}}

.mobile-call-btn{
  display:none;position:fixed;bottom:20px;right:20px;z-index:200;
  width:56px;height:56px;border-radius:50%;background:var(--blue);color:var(--white);
  align-items:center;justify-content:center;font-size:1.4rem;text-decoration:none;
  box-shadow:0 6px 20px rgba(14,58,86,.4);
}
@media(max-width:720px){.mobile-call-btn{display:flex;}}

/* --- gallery --- */
.filters{display:flex;gap:.8rem;flex-wrap:wrap;margin:2rem 0 2.5rem;}
.filter-btn{
  font-size:.8rem;font-weight:600;padding:.6rem 1.3rem;border-radius:30px;
  border:2px solid var(--line);color:var(--grey);cursor:pointer;background:var(--white);transition:.2s;
}
.filter-btn.active,.filter-btn:hover{border-color:var(--blue);color:var(--blue);}
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;}
.gallery-item{aspect-ratio:4/3;border-radius:14px;overflow:hidden;position:relative;}
.gallery-item img{width:100%;height:100%;object-fit:cover;transition:transform .4s;}
.gallery-item:hover img{transform:scale(1.06);}
.gallery-item .overlay{
  position:absolute;inset:0;background:linear-gradient(0deg,rgba(14,58,86,.65),transparent 50%);
  display:flex;align-items:flex-end;padding:1rem;color:#fff;font-weight:600;font-size:.85rem;
}
@media(max-width:900px){.gallery{grid-template-columns:1fr 1fr;}}
@media(max-width:560px){.gallery{grid-template-columns:1fr;}}