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

:root{
  --black:#0A0A0A;
  --anthracite:#1C1C1E;
  --grey:#8A8A8E;
  --grey-light:#C7C7CC;
  --white:#FAFAF8;
  --gold:#B08D57;
  --gold-soft:#D9C7A6;
  --line:rgba(255,255,255,.1);
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  background:var(--black);
  color:var(--white);
  font-family:'Inter',sans-serif;
  font-weight:300;
  overflow-x:hidden;
}
h1,h2,h3,h4{font-family:'Montserrat',sans-serif;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
.wrap{max-width:1280px;margin:0 auto;padding:0 6vw;}

.reveal{opacity:0;transform:translateY(28px);transition:opacity .9s ease,transform .9s ease;}
.reveal.in{opacity:1;transform:translateY(0);}

nav.topnav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  display:flex;justify-content:space-between;align-items:center;
  padding:1.6rem 6vw;
  background:linear-gradient(180deg,rgba(10,10,10,.85),transparent);
  transition:background .3s;
}
nav.topnav.scrolled{background:rgba(10,10,10,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);}
.brand{font-family:'Montserrat',sans-serif;font-weight:700;letter-spacing:.12em;font-size:1.1rem;display:flex;align-items:center;}
.brand span{color:var(--gold);}
.brand-logo{height:44px;width:auto;}
.footer-logo{height:52px;width:auto;}
.navlinks{display:flex;gap:2.4rem;}
.navlinks a{font-size:.8rem;letter-spacing:.08em;text-transform:uppercase;color:var(--grey-light);transition:color .2s;}
.navlinks a:hover{color:var(--gold);}
.nav-cta{
  font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;
  border:1px solid var(--gold);color:var(--gold);
  padding:.7rem 1.5rem;transition:.2s;
}
.nav-cta:hover{background:var(--gold);color:var(--black);}
@media(max-width:900px){.navlinks{display:none;}}

.hero{
  height:100vh;min-height:640px;
  position:relative;
  display:flex;align-items:center;justify-content:center;text-align:center;
  background:
    linear-gradient(180deg,rgba(10,10,10,.55),rgba(10,10,10,.85)),
    url('../assets/images/hero-background.jpg') center/cover no-repeat;
}
.hero-inner{position:relative;z-index:2;}
.hero-logo{
  width:min(70vw,340px);
  margin:0 auto 1rem;
}
.hero-eyebrow{
  font-size:.8rem;letter-spacing:.35em;text-transform:uppercase;color:var(--gold-soft);
  margin-bottom:1.6rem;
}
.hero h1{
  font-size:clamp(2.6rem,7vw,5.2rem);
  font-weight:800;letter-spacing:.02em;
  line-height:1.02;
}
.hero h2{
  font-family:'Inter',sans-serif;font-weight:300;
  font-size:clamp(1rem,2vw,1.3rem);
  color:var(--grey-light);
  margin-top:1.4rem;letter-spacing:.03em;
}
.hero-buttons{
  margin-top:2.8rem;display:flex;gap:1.2rem;justify-content:center;flex-wrap:wrap;
}
.btn{
  font-size:.82rem;letter-spacing:.1em;text-transform:uppercase;
  padding:1rem 2.2rem;transition:.25s;border:1px solid transparent;cursor:pointer;
  font-family:'Inter',sans-serif;
}
.btn-gold{background:var(--gold);color:var(--black);}
.btn-gold:hover{background:var(--gold-soft);}
.btn-outline{border-color:rgba(255,255,255,.4);color:var(--white);}
.btn-outline:hover{border-color:var(--gold);color:var(--gold);}
.scroll-cue{
  position:absolute;bottom:2.4rem;left:50%;transform:translateX(-50%);
  width:1px;height:50px;background:linear-gradient(var(--gold),transparent);
  animation:scrolldown 2s infinite;
}
@keyframes scrolldown{0%{opacity:0;}30%{opacity:1;}100%{opacity:0;transform:translate(-50%,20px);}}

section{padding:8rem 0;position:relative;}
.section-label{
  font-size:.75rem;letter-spacing:.3em;text-transform:uppercase;color:var(--gold);
  margin-bottom:1.2rem;
}
.section-title{
  font-size:clamp(1.9rem,4vw,3rem);font-weight:700;
  max-width:18ch;line-height:1.1;
}
.section-title.center{margin:0 auto;text-align:center;max-width:26ch;}
.lead{color:var(--grey-light);font-size:1.05rem;max-width:56ch;margin-top:1.4rem;line-height:1.75;}
.lead.center{margin-left:auto;margin-right:auto;text-align:center;}

.about{display:grid;grid-template-columns:1fr 1fr;gap:5vw;align-items:center;}
.about-img{aspect-ratio:4/5;background:url('../assets/images/about.jpg') center/cover;position:relative;}
.about-img::after{content:'';position:absolute;inset:0;border:1px solid var(--gold);transform:translate(16px,16px);z-index:-1;}
@media(max-width:900px){.about{grid-template-columns:1fr;}}

.services-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);margin-top:4rem;
}
.service-card{
  background:var(--anthracite);padding:3rem 2.2rem;position:relative;overflow:hidden;
  transition:background .3s;
}
.service-card:hover{background:#232326;}
.service-card .index{font-family:'Montserrat',sans-serif;font-size:.75rem;color:var(--gold);letter-spacing:.1em;}
.service-card h3{font-size:1.4rem;font-weight:600;margin:1.2rem 0 .8rem;}
.service-card p{color:var(--grey-light);font-size:.92rem;line-height:1.65;}
.service-card.wide{grid-column:span 3;background:#141416;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:1.5rem;}
.service-card.wide h3{margin:0;}
@media(max-width:900px){.services-grid{grid-template-columns:1fr;}.service-card.wide{grid-column:span 1;}}

.filters{display:flex;gap:.8rem;flex-wrap:wrap;margin:2.5rem 0 3rem;}
.filter-btn{
  font-size:.75rem;letter-spacing:.08em;text-transform:uppercase;
  padding:.6rem 1.3rem;border:1px solid var(--line);color:var(--grey-light);
  cursor:pointer;transition:.2s;background:transparent;font-family:'Inter',sans-serif;
}
.filter-btn.active,.filter-btn:hover{border-color:var(--gold);color:var(--gold);}
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:.6rem;}
.gallery-item{
  aspect-ratio:4/3;background-size:cover;background-position:center;position:relative;overflow:hidden;
}
.gallery-item .overlay{
  position:absolute;inset:0;background:rgba(10,10,10,.55);
  display:flex;align-items:flex-end;padding:1.2rem;
  opacity:0;transition:.3s;font-size:.85rem;letter-spacing:.05em;text-transform:uppercase;
}
.gallery-item:hover .overlay{opacity:1;}
.gallery-item img{width:100%;height:100%;object-fit:cover;transition:transform .5s;}
.gallery-item:hover img{transform:scale(1.06);}
@media(max-width:900px){.gallery{grid-template-columns:1fr 1fr;}}
.gallery-note{margin-top:2rem;color:var(--grey);font-size:.85rem;font-style:italic;}

.why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:2.5rem;margin-top:4rem;}
.why-item{text-align:center;}
.why-icon{
  width:52px;height:52px;border:1px solid var(--gold);border-radius:50%;
  display:flex;align-items:center;justify-content:center;margin:0 auto 1.2rem;
  color:var(--gold);font-family:'Montserrat',sans-serif;font-weight:700;
}
.why-item h4{font-size:1rem;font-weight:600;margin-bottom:.5rem;}
.why-item p{color:var(--grey);font-size:.85rem;}
@media(max-width:900px){.why-grid{grid-template-columns:1fr 1fr;}}

.timeline{display:flex;flex-wrap:wrap;gap:0;margin-top:4rem;counter-reset:step;}
.tl-step{flex:1;min-width:160px;text-align:center;padding:0 1rem;position:relative;}
.tl-step::before{
  counter-increment:step;content:counter(step);
  width:44px;height:44px;border-radius:50%;
  background:var(--anthracite);border:1px solid var(--gold);color:var(--gold);
  display:flex;align-items:center;justify-content:center;margin:0 auto 1.2rem;
  font-family:'Montserrat',sans-serif;font-weight:600;
}
.tl-step h4{font-size:.9rem;font-weight:600;letter-spacing:.02em;}
.tl-step p{color:var(--grey);font-size:.78rem;margin-top:.4rem;}
@media(max-width:900px){.timeline{flex-direction:column;gap:2rem;}}

.testimonials{display:grid;grid-template-columns:repeat(3,1fr);gap:1.6rem;margin-top:4rem;}
.t-card{background:var(--anthracite);padding:2.4rem 2rem;border-top:2px solid var(--gold);}
.stars{color:var(--gold);font-size:.9rem;letter-spacing:.2em;margin-bottom:1.2rem;}
.t-card p{color:var(--grey-light);font-size:.92rem;line-height:1.6;font-style:italic;}
.t-card .who{margin-top:1.4rem;font-size:.8rem;color:var(--grey);letter-spacing:.03em;}
@media(max-width:900px){.testimonials{grid-template-columns:1fr;}}

.devis{background:var(--anthracite);}
.devis-box{max-width:760px;margin:3rem auto 0;background:var(--black);border:1px solid var(--line);padding:3rem;}
.devis-progress{display:flex;gap:.4rem;margin-bottom:2.4rem;}
.devis-progress span{flex:1;height:2px;background:var(--line);}
.devis-progress span.done{background:var(--gold);}
.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:1.2rem;font-weight:600;margin-bottom:1.6rem;}
.option-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:.8rem;}
.opt{
  border:1px solid var(--line);padding:1rem 1.2rem;font-size:.88rem;cursor:pointer;
  transition:.2s;user-select:none;
}
.opt:hover{border-color:var(--gold-soft);}
.opt.selected{border-color:var(--gold);background:rgba(176,141,87,.1);color:var(--gold);}
.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:transparent;border:1px solid var(--line);color:var(--white);
  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(--gold);}
.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:1px solid var(--line);color:var(--white);
  padding:.85rem 1.8rem;font-size:.8rem;letter-spacing:.08em;text-transform:uppercase;cursor:pointer;
}
.devis-nav button.next{border-color:var(--gold);color:var(--gold);}
.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%;border:1px solid var(--gold);color:var(--gold);
  display:flex;align-items:center;justify-content:center;margin:0 auto 1.5rem;font-size:1.6rem;
}

footer{border-top:1px solid var(--line);padding:4rem 0 2rem;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:3rem;}
.footer-grid h4{font-size:.85rem;letter-spacing:.1em;text-transform:uppercase;color:var(--gold);margin-bottom:1.2rem;}
.footer-grid p,.footer-grid a{display:block;color:var(--grey);font-size:.88rem;margin-bottom:.6rem;}
.footer-bottom{
  margin-top:3rem;padding-top:2rem;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:1rem;
  font-size:.75rem;color:var(--grey);
}
@media(max-width:900px){.footer-grid{grid-template-columns:1fr;}}