*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
:root{
  --blue:#1E4D7B;--blue-l:#2A6BAD;--accent:#5BAFD6;
  --dark:#0D1B2A;--surface:#112236;--surface2:#162C42;
  --text:#E8EFF6;--muted:#7A9BB8;--border:rgba(42,107,173,0.25);
}
body{font-family:'Barlow',sans-serif;background:var(--dark);color:var(--text);line-height:1.6;}
img{display:block;}

/* NAV */
nav{position:sticky;top:0;z-index:200;display:flex;justify-content:space-between;align-items:center;
  padding:15px 60px;background:rgba(13,27,42,0.97);border-bottom:1px solid var(--border);}
.nav-logo{font-family:'Barlow Condensed',sans-serif;font-size:22px;font-weight:700;color:var(--accent);letter-spacing:3px;}
.nav-links{display:flex;gap:32px;list-style:none;}
.nav-links a{color:var(--muted);font-size:11px;letter-spacing:2px;text-transform:uppercase;text-decoration:none;transition:color 0.2s;}
.nav-links a:hover{color:var(--accent);}

/* HERO */
.hero{min-height:100vh;display:flex;flex-direction:column;justify-content:center;
  padding:80px 60px;position:relative;border-bottom:1px solid var(--border);overflow:hidden;}
.hero::before{content:'';position:absolute;right:-80px;top:10%;width:420px;height:420px;
  border-radius:50%;border:1px solid rgba(42,107,173,0.18);pointer-events:none;}
.hero::after{content:'';position:absolute;right:60px;top:18%;width:240px;height:240px;
  border-radius:50%;border:1px solid rgba(91,175,214,0.12);pointer-events:none;}
.badge{display:inline-flex;align-items:center;gap:8px;padding:7px 18px;
  border:1px solid rgba(91,175,214,0.35);font-size:11px;color:var(--accent);
  letter-spacing:2px;text-transform:uppercase;margin-bottom:28px;width:fit-content;}
.badge-dot{width:6px;height:6px;background:var(--accent);border-radius:50%;animation:pulse 2s infinite;}
@keyframes pulse{0%,100%{opacity:1;}50%{opacity:0.3;}}
.hero-tag{font-size:11px;letter-spacing:4px;text-transform:uppercase;color:var(--muted);margin-bottom:20px;}
.hero h1{font-family:'Barlow Condensed',sans-serif;font-size:clamp(52px,9vw,96px);font-weight:700;
  line-height:0.95;margin-bottom:28px;}
.hero h1 span{color:var(--accent);}
.hero-desc{font-size:17px;color:var(--muted);max-width:500px;margin-bottom:44px;font-weight:300;line-height:1.7;}
.hero-stats{display:flex;gap:52px;margin-bottom:52px;}
.stat-num{font-family:'Barlow Condensed',sans-serif;font-size:42px;font-weight:700;
  color:var(--accent);display:block;line-height:1;}
.stat-label{font-size:11px;color:var(--muted);letter-spacing:1px;text-transform:uppercase;margin-top:6px;}
.cta-btn{display:inline-flex;align-items:center;gap:12px;padding:13px 32px;
  border:1px solid var(--blue-l);color:var(--accent);font-size:12px;letter-spacing:2px;
  text-transform:uppercase;cursor:pointer;background:transparent;transition:all 0.3s;font-family:'Barlow',sans-serif;}
.cta-btn:hover{background:var(--blue-l);color:#fff;}

/* SECTIONS */
section{padding:80px 60px;}
.section-tag{font-size:10px;letter-spacing:4px;text-transform:uppercase;color:var(--accent);margin-bottom:10px;}
h2{font-family:'Barlow Condensed',sans-serif;font-size:42px;font-weight:700;margin-bottom:48px;}

/* ABOUT */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:start;}
.about-text{font-size:15px;color:var(--muted);line-height:1.8;}
.about-text p+p{margin-top:16px;}
.skills-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;}
.skill-chip{padding:11px 14px;border:1px solid var(--border);font-size:13px;color:var(--muted);
  display:flex;align-items:center;gap:10px;background:rgba(30,77,123,0.12);transition:all 0.2s;}
.skill-chip:hover{border-color:var(--accent);color:var(--text);}
.skill-dot{width:5px;height:5px;background:var(--accent);border-radius:50%;flex-shrink:0;}

/* ETHIC */
.ethic-block{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;
  background:var(--surface);border:1px solid var(--border);padding:40px;margin-bottom:48px;}
.ethic-img{height:280px;overflow:hidden;}
.ethic-img img{width:100%;height:100%;object-fit:cover;}
.ethic-tag{font-size:10px;letter-spacing:3px;text-transform:uppercase;color:var(--accent);margin-bottom:8px;}
.ethic-info h3{font-family:'Barlow Condensed',sans-serif;font-size:32px;color:var(--accent);margin-bottom:12px;}
.ethic-info p{font-size:15px;color:var(--muted);line-height:1.8;}

/* PROJECT GRID */
.projects-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(340px,1fr));gap:28px;}
.project-card{background:var(--surface);border:1px solid var(--border);overflow:hidden;
  transition:transform 0.3s,border-color 0.3s;}
.project-card:hover{transform:translateY(-5px);border-color:var(--accent);}
.project-body{padding:22px 24px;}
.project-cat{font-size:10px;letter-spacing:3px;text-transform:uppercase;color:var(--accent);margin-bottom:8px;}
.project-name{font-family:'Barlow Condensed',sans-serif;font-size:22px;font-weight:600;margin-bottom:6px;}
.project-meta{font-size:12px;color:var(--muted);}

/* SINGLE IMG */
.single-img{height:220px;overflow:hidden;}
.single-img img{width:100%;height:100%;object-fit:cover;transition:transform 0.4s;}
.project-card:hover .single-img img{transform:scale(1.04);}

/* MULTI IMG */
.multi-img{display:grid;grid-template-columns:1fr 1fr;height:220px;gap:2px;}
.m-img{overflow:hidden;}
.m-img img{width:100%;height:100%;object-fit:cover;transition:transform 0.4s;}
.project-card:hover .m-img img{transform:scale(1.04);}

/* ═══ SLIDER AVANT/APRÈS (technique clip) ═══ */
.slider-wrap{
  position:relative;
  height:260px;
  overflow:hidden;
  cursor:ew-resize;
  user-select:none;
  -webkit-user-select:none;
}
.slide-after{position:absolute;inset:0;}
.slide-after img{width:100%;height:100%;object-fit:cover;}
.slide-before{
  position:absolute;inset:0;
  clip-path:inset(0 50% 0 0);
  transition:none;
}
.slide-before img{width:100%;height:100%;object-fit:cover;}
.slide-handle{
  position:absolute;top:0;bottom:0;
  left:50%;transform:translateX(-50%);
  width:3px;background:var(--accent);
  z-index:10;pointer-events:none;
}
.handle-circle{
  position:absolute;top:50%;left:50%;
  transform:translate(-50%,-50%);
  width:38px;height:38px;border-radius:50%;
  background:var(--accent);color:var(--dark);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;
}
.slide-tag{
  position:absolute;bottom:10px;
  font-size:9px;letter-spacing:2px;text-transform:uppercase;
  background:rgba(13,27,42,0.85);padding:4px 10px;z-index:5;
  pointer-events:none;
}
.slide-tag.left{left:10px;color:var(--accent);}
.slide-tag.right{right:10px;color:var(--muted);}

/* GALLERY 3D */
.gallery-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px;}
.gallery-item{aspect-ratio:4/3;overflow:hidden;border:1px solid var(--border);}
.gallery-item img{width:100%;height:100%;object-fit:cover;transition:transform 0.4s;}
.gallery-item:hover img{transform:scale(1.07);}

/* GALLERY BA */
.ba-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px;}
.ba-item{border:1px solid var(--border);overflow:hidden;background:var(--surface);}
.ba-item img{width:100%;height:320px;object-fit:contain;background:#fff;padding:8px;}
.ba-label{padding:12px 16px;font-size:11px;letter-spacing:2px;text-transform:uppercase;color:var(--accent);}

/* DIASS GALLERY */
.diass-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.diass-grid .diass-main{grid-column:1/-1;height:280px;overflow:hidden;}
.diass-grid .diass-main img{width:100%;height:100%;object-fit:cover;}
.diass-grid .diass-sub{height:200px;overflow:hidden;border:1px solid var(--border);}
.diass-grid .diass-sub img{width:100%;height:100%;object-fit:cover;transition:transform 0.4s;}
.diass-grid .diass-sub:hover img{transform:scale(1.05);}

/* TIMELINE */
.timeline{position:relative;padding-left:28px;}
.timeline::before{content:'';position:absolute;left:0;top:8px;bottom:8px;width:1px;background:var(--border);}
.timeline-item{position:relative;margin-bottom:40px;}
.timeline-dot{position:absolute;left:-32px;top:6px;width:7px;height:7px;background:var(--accent);border-radius:50%;}
.timeline-date{font-size:11px;color:var(--accent);letter-spacing:1px;margin-bottom:5px;}
.timeline-title{font-size:16px;font-weight:600;margin-bottom:3px;}
.timeline-company{font-size:13px;color:var(--muted);margin-bottom:8px;}
.timeline-desc{font-size:13px;color:var(--muted);line-height:1.7;}

/* CONTACT */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:start;}
.contact-info{display:flex;flex-direction:column;gap:20px;}
.contact-item{display:flex;align-items:center;gap:14px;}
.contact-icon{width:42px;height:42px;border:1px solid var(--border);display:flex;align-items:center;
  justify-content:center;flex-shrink:0;color:var(--accent);background:rgba(30,77,123,0.15);font-size:15px;}
.contact-label{font-size:10px;letter-spacing:2px;text-transform:uppercase;color:var(--muted);}
.contact-val{font-size:14px;margin-top:2px;}
.contact-cta{font-family:'Barlow Condensed',sans-serif;font-size:36px;font-weight:700;line-height:1.2;margin-bottom:20px;}
.contact-cta span{color:var(--accent);}
footer{padding:22px 60px;border-top:1px solid var(--border);display:flex;justify-content:space-between;font-size:12px;color:var(--muted);}
.div{width:32px;height:1px;background:var(--accent);display:inline-block;vertical-align:middle;margin:0 10px;}