:root {
  --navy:#040b1a; --navy2:#071226; --gold:#f5c518; --gold2:#e8a800;
  --blue:#3b82f6; --blue2:#1d4ed8; --cyan:#06b6d4;
  --amber:#f59e0b; --amber2:#d97706;
  --white:#f0f4ff; --muted:rgba(200,215,255,0.55);
  --card-bg:rgba(255,255,255,0.032); --card-border:rgba(255,255,255,0.07);
  --font-display:'Space Grotesk',system-ui,sans-serif;
  --font-mono:'JetBrains Mono',monospace;
  --ease:cubic-bezier(.22,.68,0,1.2);
  /* accent propre à ce projet */
  --accent:#f59e0b; --accent2:#d97706;
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{font-family:var(--font-display);background:var(--navy);color:var(--white);overflow-x:hidden;-webkit-font-smoothing:antialiased;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
ul{list-style:none;}

/* BG */
#bg-canvas{position:fixed;inset:0;z-index:0;pointer-events:none;}
.bg-glow{position:fixed;z-index:0;pointer-events:none;border-radius:50%;filter:blur(130px);}
.g1{width:550px;height:550px;top:-80px;left:-100px;background:#92400e;opacity:.14;}
.g2{width:420px;height:420px;bottom:60px;right:-80px;background:var(--blue2);opacity:.09;}
.bg-grid{position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:linear-gradient(rgba(245,158,11,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(245,158,11,.03) 1px,transparent 1px);
  background-size:48px 48px;}

/* NAV */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;display:flex;align-items:center;justify-content:space-between;
  padding:0 60px;height:68px;backdrop-filter:blur(20px) saturate(1.4);
  background:rgba(4,11,26,0.72);border-bottom:1px solid var(--card-border);}
.nav-logo img{height:34px;}
.nav-back{font-size:13px;color:var(--muted);display:flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:8px;border:1px solid var(--card-border);
  transition:color .2s,border-color .2s;}
.nav-back:hover{color:var(--white);border-color:rgba(255,255,255,.2);}
.nav-back svg{width:16px;height:16px;}

/* HERO */
.project-hero{
  min-height:72vh;display:flex;flex-direction:column;justify-content:flex-end;
  padding:130px 60px 80px;position:relative;z-index:2;
  border-bottom:1px solid var(--card-border);
}
.project-hero::before{
  content:'';position:absolute;inset:0;z-index:0;
  background:radial-gradient(ellipse at 70% 35%, rgba(245,158,11,.14), transparent 60%);
}
.project-hero-inner{position:relative;z-index:1;max-width:900px;}
.project-tag-pill{
  display:inline-block;font-family:var(--font-mono);font-size:10px;letter-spacing:2px;
  padding:5px 14px;border-radius:20px;margin-bottom:20px;
  background:rgba(245,158,11,.1);color:var(--accent);border:1px solid rgba(245,158,11,.3);
}
.project-hero h1{font-size:clamp(32px,5vw,60px);font-weight:700;line-height:1.08;letter-spacing:-.5px;margin-bottom:20px;}
.project-hero .lead{font-size:18px;color:var(--muted);line-height:1.7;max-width:680px;}

/* HERO KPIs */
.hero-kpis{
  display:flex;gap:48px;margin-top:52px;position:relative;z-index:1;
  flex-wrap:wrap;
}
.kpi{display:flex;flex-direction:column;gap:6px;}
.kpi-num{font-size:44px;font-weight:700;line-height:1;color:var(--accent);font-feature-settings:"tnum";}
.kpi-label{font-size:12px;color:var(--muted);max-width:140px;line-height:1.45;}

/* HERO IMAGE */
.hero-img-strip{
  margin-top:60px;border-radius:16px;overflow:hidden;
  border:1px solid var(--card-border);
  box-shadow:0 40px 100px rgba(0,0,0,.55);
  position:relative;z-index:1;
}
.hero-img-strip img{width:100%;height:auto;display:block;}

/* BODY */
.page-body{max-width:1100px;margin:0 auto;padding:100px 60px;}
.s-label{font-family:var(--font-mono);font-size:10px;letter-spacing:3px;color:var(--gold);
  text-transform:uppercase;margin-bottom:14px;display:block;}

/* BLOCKS */
.block-row{display:grid;grid-template-columns:1fr 1fr;gap:32px;margin-bottom:60px;align-items:start;}
.block-card{background:var(--card-bg);border:1px solid var(--card-border);
  border-radius:16px;padding:36px;backdrop-filter:blur(10px);
  transition:transform .3s var(--ease),border-color .3s;}
.block-card:hover{transform:translateY(-4px);border-color:rgba(245,158,11,.25);}
.block-card h2{font-size:22px;font-weight:700;margin-bottom:16px;line-height:1.25;}
.block-card p{font-size:15px;color:var(--muted);line-height:1.75;margin-bottom:12px;}
.block-card ul{display:flex;flex-direction:column;gap:10px;margin-top:4px;}
.block-card li{font-size:14px;color:var(--muted);line-height:1.55;
  padding-left:18px;position:relative;}
.block-card li::before{content:'→';position:absolute;left:0;color:var(--accent);font-size:12px;}

/* FULL BLOCK */
.block-full{background:var(--card-bg);border:1px solid var(--card-border);
  border-radius:16px;padding:36px;backdrop-filter:blur(10px);margin-bottom:60px;
  transition:transform .3s var(--ease),border-color .3s;}
.block-full:hover{transform:translateY(-4px);border-color:rgba(245,158,11,.18);}
.block-full h2{font-size:22px;font-weight:700;margin-bottom:20px;}
.block-full p{font-size:15px;color:var(--muted);line-height:1.75;margin-bottom:12px;}
.block-full ul{display:grid;grid-template-columns:1fr 1fr;gap:10px 32px;margin-top:8px;}
.block-full li{font-size:14px;color:var(--muted);line-height:1.55;
  padding-left:18px;position:relative;}
.block-full li::before{content:'→';position:absolute;left:0;color:var(--accent);font-size:12px;}

/* FLOW STEPS */
.flow-block{background:var(--card-bg);border:1px solid var(--card-border);
  border-radius:16px;padding:40px;backdrop-filter:blur(10px);margin-bottom:60px;}
.flow-block h2{font-size:22px;font-weight:700;margin-bottom:36px;}
.flow-steps{display:flex;gap:0;position:relative;}
.flow-steps::before{
  content:'';position:absolute;top:22px;left:22px;right:22px;height:1px;
  background:linear-gradient(90deg,var(--accent),var(--cyan),var(--blue));
  opacity:.25;z-index:0;
}
.flow-step{flex:1;text-align:center;padding:0 10px;position:relative;z-index:1;}
.flow-dot{
  width:44px;height:44px;border-radius:50%;margin:0 auto 16px;
  display:flex;align-items:center;justify-content:center;font-size:18px;
  border:1px solid;animation:dotPulse 4s ease-in-out infinite;
}
.flow-step:nth-child(1) .flow-dot{background:rgba(245,158,11,.15);border-color:var(--accent);animation-delay:0s;}
.flow-step:nth-child(2) .flow-dot{background:rgba(59,130,246,.15);border-color:var(--blue);animation-delay:.8s;}
.flow-step:nth-child(3) .flow-dot{background:rgba(6,182,212,.15);border-color:var(--cyan);animation-delay:1.6s;}
.flow-step:nth-child(4) .flow-dot{background:rgba(245,197,24,.15);border-color:var(--gold);animation-delay:2.4s;}
.flow-step:nth-child(5) .flow-dot{background:rgba(134,239,172,.12);border-color:#86efac;animation-delay:3.2s;}
@keyframes dotPulse{0%,100%{box-shadow:0 0 0 0 transparent;}50%{box-shadow:0 0 0 8px rgba(245,158,11,.1);}}
.flow-step h3{font-size:13px;font-weight:600;margin-bottom:6px;}
.flow-step p{font-size:12px;color:var(--muted);line-height:1.5;}

/* GALLERY */
.gallery-section{margin-bottom:60px;}
.gallery-section h2{font-size:22px;font-weight:700;margin-bottom:28px;}
.gallery-grid-single{display:grid;grid-template-columns:1fr;gap:16px;}
.gallery-shot{border-radius:14px;overflow:hidden;border:1px solid var(--card-border);
  transition:transform .35s var(--ease),box-shadow .35s;}
.gallery-shot:hover{transform:translateY(-6px) scale(1.005);box-shadow:0 30px 70px rgba(0,0,0,.45);}
.gallery-shot img{width:100%;height:auto;display:block;}

/* QUOTE */
.quote-block{
  border-left:3px solid var(--accent);padding:24px 32px;margin-bottom:60px;
  background:rgba(245,158,11,.04);border-radius:0 12px 12px 0;
}
.quote-block p{font-size:16px;color:rgba(240,244,255,.75);line-height:1.75;font-style:italic;}

/* CTA */
.project-cta{text-align:center;padding:70px 40px;border-radius:20px;
  border:1px solid rgba(245,197,24,.2);
  background:linear-gradient(135deg,rgba(245,197,24,.04),rgba(245,158,11,.06));
  backdrop-filter:blur(16px);margin-bottom:80px;}
.project-cta h2{font-size:30px;font-weight:700;margin-bottom:16px;}
.project-cta p{font-size:15px;color:var(--muted);margin-bottom:36px;}
.btn-gold{display:inline-block;padding:14px 36px;border-radius:10px;font-size:15px;font-weight:700;
  background:linear-gradient(135deg,var(--gold),var(--gold2));color:var(--navy);
  transition:transform .2s,box-shadow .2s;}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 12px 40px rgba(245,197,24,.28);}

/* FOOTER */
.footer{padding:40px 60px;border-top:1px solid var(--card-border);position:relative;z-index:2;
  display:flex;align-items:center;justify-content:space-between;}
.footer-logo img{height:28px;opacity:.6;}
.footer-copy{font-size:12px;color:rgba(200,215,255,.3);font-family:var(--font-mono);}

/* REVEAL */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease;}
.reveal.visible{opacity:1;transform:translateY(0);}

@media(max-width:900px){
  .nav{padding:0 24px;}
  .project-hero{padding:110px 24px 60px;}
  .page-body{padding:60px 24px;}
  .block-row{grid-template-columns:1fr;}
  .block-full ul{grid-template-columns:1fr;}
  .flow-steps{flex-direction:column;gap:28px;}
  .flow-steps::before{display:none;}
  .hero-kpis{gap:32px;}
}