:root{
  --bg:#0d1218; --bg-2:#141b23; --panel:#182129;
  --ivory:#e9e5db; --mist:#9aa3ad; --faint:#5c646d;
  --gold:#c8b184; --gold-bright:#ddc79a; --gold-deep:#8f7d59;
  --line:rgba(200,177,132,.14); --line-cool:rgba(255,255,255,.07);
  --serif:"Iowan Old Style","Palatino Linotype",Palatino,"Noto Serif",Georgia,"Times New Roman",serif;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ivory);
  font-family:var(--sans);font-weight:300;font-size:17px;line-height:1.75;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}
::selection{background:rgba(200,177,132,.26);color:#fff}
a{color:inherit;text-decoration:none}
.wrap{width:min(1140px,90vw);margin-inline:auto}
.eyebrow{font-family:var(--sans);font-weight:500;font-size:.72rem;letter-spacing:.3em;
  text-transform:uppercase;color:var(--gold);display:inline-flex;align-items:center;gap:.7em;margin:0 0 1.4rem}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--gold);opacity:.7}

/* nav */
header{position:fixed;top:0;left:0;right:0;z-index:60;transition:background .4s,border-color .4s,backdrop-filter .4s;border-bottom:1px solid transparent}
header.scrolled{background:rgba(11,15,20,.82);backdrop-filter:blur(14px);border-bottom:1px solid var(--line-cool)}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px}
.brand{display:flex;align-items:center;gap:.6rem;font-family:var(--serif);font-weight:500;font-size:1.32rem;letter-spacing:.02em}
.nav-links{display:flex;align-items:center;gap:2.4rem}
.nav-links a{font-size:.8rem;letter-spacing:.1em;text-transform:uppercase;color:var(--mist);font-weight:400;position:relative;transition:color .25s}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:1px;background:var(--gold);transition:width .3s}
.nav-links a:hover{color:var(--ivory)}
.nav-links a:hover::after{width:100%}
.lang{display:inline-flex;border:1px solid var(--line);border-radius:100px;overflow:hidden;font-size:.72rem;letter-spacing:.08em;font-weight:500}
.lang button{background:none;border:0;color:var(--mist);padding:.42rem .8rem;cursor:pointer;font-family:var(--sans);font-weight:500;letter-spacing:.08em;transition:color .25s,background .25s}
.lang button.on{background:var(--ivory);color:#12181f}
.lang button:not(.on):hover{color:var(--ivory)}
.burger{display:none;background:none;border:0;cursor:pointer;padding:8px;flex-direction:column;gap:5px}
.burger span{display:block;width:24px;height:1.5px;background:var(--ivory);transition:.3s}
.mobile-menu{position:fixed;inset:0;z-index:55;background:rgba(10,14,19,.97);backdrop-filter:blur(10px);display:flex;flex-direction:column;justify-content:center;align-items:center;gap:2rem;opacity:0;pointer-events:none;transition:opacity .35s}
.mobile-menu.open{opacity:1;pointer-events:auto}
.mobile-menu a{font-family:var(--serif);font-size:2rem;color:var(--ivory)}
.mobile-menu a:hover{color:var(--gold)}

/* hero */
.hero{position:relative;min-height:100svh;display:flex;align-items:center;padding:120px 0 80px;overflow:hidden}
.flux-bg{position:absolute;inset:0;z-index:0;pointer-events:none;overflow:hidden}
.flux-bg svg{position:absolute;top:50%;left:50%;transform:translate(-48%,-56%);width:min(1500px,150vw);height:auto}
.hero .wrap{position:relative;z-index:2;text-align:center}
.hero h1{font-family:var(--serif);font-weight:400;font-size:clamp(3.6rem,15vw,9.5rem);line-height:.92;letter-spacing:-.02em;margin:0;color:var(--ivory)}
.tagline{font-family:var(--serif);font-weight:300;font-style:italic;font-size:clamp(1.15rem,3vw,1.7rem);color:var(--ivory);margin:1.4rem 0 0;letter-spacing:.01em}
.hero-sub{max-width:680px;margin:1.7rem auto 0;color:var(--mist);font-size:1.06rem;line-height:1.7}
.hero-cta{margin-top:2.6rem;display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}
.btn{font-family:var(--sans);font-weight:500;font-size:.82rem;letter-spacing:.12em;text-transform:uppercase;padding:.95rem 1.7rem;border-radius:100px;cursor:pointer;transition:transform .25s,box-shadow .25s,background .25s,color .25s,border-color .25s;display:inline-flex;align-items:center;gap:.6em}
.btn-primary{background:var(--ivory);color:#12181f;border:0}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px -12px rgba(0,0,0,.7)}
.btn-ghost{background:none;color:var(--ivory);border:1px solid var(--line)}
.btn-ghost:hover{border-color:var(--gold);color:var(--gold)}
.scroll-cue{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);z-index:3;font-size:.66rem;letter-spacing:.28em;text-transform:uppercase;color:var(--faint);display:flex;flex-direction:column;align-items:center;gap:.7rem}
.scroll-cue .bar{width:1px;height:38px;background:linear-gradient(var(--gold),transparent);animation:cue 2.4s ease-in-out infinite}
@keyframes cue{0%,100%{transform:scaleY(.4);opacity:.4;transform-origin:top}50%{transform:scaleY(1);opacity:1;transform-origin:top}}

/* top-left flux accent behind the lead title */
#project{overflow:hidden}
#project .wrap{position:relative;z-index:1}
.flux-accent{position:absolute;top:-20px;left:-6%;width:min(680px,72vw);height:auto;z-index:0;pointer-events:none;opacity:.55}
.flux-accent{display:none}
@media(max-width:820px){.flux-accent{opacity:.4;width:118vw;left:-22%;top:-10px}}
.flux-accent.right{left:auto;right:-6%;transform:scaleX(-1)}
@media(max-width:820px){.flux-accent.right{right:-22%;left:auto}}
.hero .flux-accent{top:96px;left:-4%;width:min(560px,58vw);opacity:.7;z-index:1}
.hero .flux-accent path{display:none}
@media(max-width:820px){.hero .flux-accent{top:104px;left:-16%;width:98vw;opacity:.4}}
/* sections */
section{position:relative;padding:clamp(6rem,12vw,10rem) 0;overflow:hidden}
section[id]{scroll-margin-top:88px}
section .wrap{position:relative;z-index:1}
.divider{width:100%;height:60px;position:relative;overflow:hidden}
.divider svg{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:min(900px,92vw)}
h2.title{font-family:var(--serif);font-weight:400;font-size:clamp(2rem,5.2vw,3.5rem);line-height:1.06;letter-spacing:-.015em;margin:0 0 1.6rem;max-width:22ch}
.lead{font-size:1.12rem;color:var(--ivory);max-width:62ch;line-height:1.72;font-weight:300}
.body-copy{color:var(--mist);max-width:64ch;margin-top:1.3rem}
.body-copy strong{color:var(--ivory);font-weight:500}

/* fields */
.fields{margin-top:3.5rem;border-top:1px solid var(--line-cool)}
.field{display:grid;grid-template-columns:auto 1fr;gap:clamp(1.5rem,5vw,4rem);padding:2.4rem 0;border-bottom:1px solid var(--line-cool);transition:padding-left .4s}
.field:hover{padding-left:.8rem}
.field .rn{font-family:var(--serif);font-size:1.4rem;color:var(--gold-deep);font-weight:500;padding-top:.15rem;transition:color .3s}
.field:hover .rn{color:var(--gold)}
.field h3{font-family:var(--serif);font-weight:500;font-size:clamp(1.4rem,3.4vw,1.95rem);margin:0 0 .6rem;letter-spacing:-.01em}
.field p{margin:0;color:var(--mist);max-width:58ch;font-size:1.02rem}

/* publications */
.pubs{margin-top:2.5rem}
.pub{display:block;padding:2.2rem 0;border-bottom:1px solid var(--line-cool);transition:background .3s;position:relative}
.pub-meta{font-size:.74rem;letter-spacing:.18em;text-transform:uppercase;color:var(--gold-deep);display:flex;gap:1rem;flex-wrap:wrap;margin-bottom:.8rem}
.pub h3{font-family:var(--serif);font-weight:400;font-size:clamp(1.5rem,3.6vw,2.15rem);margin:0 0 .5rem;letter-spacing:-.01em;transition:color .3s}
.pub:hover h3{color:var(--gold-bright)}
.pub p{margin:0;color:var(--mist);max-width:64ch}
.pub .read{display:inline-flex;align-items:center;gap:.5em;margin-top:1rem;font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;color:var(--gold);font-weight:500}
.pub .read span{transition:transform .3s}
.pub:hover .read span{transform:translateX(5px)}
.allpubs{display:inline-flex;margin-top:2.2rem;font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;color:var(--gold);font-weight:500;border:1px solid var(--line);padding:.85rem 1.5rem;border-radius:100px;transition:border-color .25s,color .25s}
.allpubs:hover{border-color:var(--gold);color:var(--gold-bright)}
.contact-links{margin-top:2.6rem;border-top:1px solid var(--line-cool)}
.contact-link{display:flex;justify-content:space-between;align-items:baseline;gap:2rem;padding:1.5rem 0;border-bottom:1px solid var(--line-cool);transition:padding-left .3s}
.contact-link:hover{padding-left:.6rem}
.cl-label{font-family:var(--sans);font-size:.72rem;letter-spacing:.22em;text-transform:uppercase;color:var(--gold-deep)}
.cl-value{font-family:var(--serif);font-size:clamp(1.2rem,3.4vw,1.75rem);color:var(--ivory);transition:color .3s}
.contact-link:hover .cl-value{color:var(--gold-bright)}

/* about */
.about-wrap .signoff{font-family:var(--serif);font-style:italic;color:var(--ivory);margin-top:1.8rem;font-size:1.2rem}

/* footer */
footer{padding:5rem 0 3rem;border-top:1px solid var(--line-cool);background:#0a0e13}
.foot{display:flex;justify-content:space-between;align-items:flex-end;gap:2rem;flex-wrap:wrap}
.foot .fbrand{font-family:var(--serif);font-size:2rem;color:var(--ivory)}
.foot .ftag{font-family:var(--serif);font-style:italic;color:var(--mist);margin-top:.4rem}
.foot .fmeta{text-align:right;color:var(--faint);font-size:.85rem;line-height:1.9}
.foot .fmeta a:hover{color:var(--gold)}
.copyright{margin-top:3rem;padding-top:1.6rem;border-top:1px solid var(--line-cool);color:var(--faint);font-size:.78rem;letter-spacing:.04em;display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap}

.reveal{opacity:0;transform:translateY(28px);transition:opacity .9s cubic-bezier(.2,.7,.2,1),transform .9s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}
.flux-path{stroke-dasharray:2400;stroke-dashoffset:2400;animation:draw 3.4s cubic-bezier(.4,0,.1,1) .3s forwards}
@keyframes draw{to{stroke-dashoffset:0}}
.flux-drift{animation:drift 14s ease-in-out infinite alternate}
@keyframes drift{from{transform:translate(-48%,-56%) rotate(-.4deg)}to{transform:translate(-46%,-54%) rotate(.4deg)}}

@media(max-width:820px){
  .nav-links{display:none}
  .burger{display:flex}
  .lang{margin-right:.4rem}
  .foot{flex-direction:column;align-items:flex-start}
  .foot .fmeta{text-align:left}
}
@media(max-width:859px){.divider svg path:nth-of-type(2){display:none}}
@media(min-width:860px){
  .wrap{width:min(960px,88vw)}
  .flux-accent{display:none}
  .divider-d{display:block}
  .divider{height:88px}
  .divider svg{width:min(1500px,94vw)}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
  .flux-path{stroke-dashoffset:0}
}

/* ============================================================
   NIVEAU PROJET — ajouts pour l'architecture multi-pages
   (tokens et langage visuel existants, rien de nouveau côté DA)
   ============================================================ */

/* hero raccourci pour les pages projet */
.hero.hero-page{min-height:auto;padding:150px 0 90px}
.hero.hero-page .wrap{text-align:left}
.hero.hero-page h1{font-size:clamp(2.4rem,7.6vw,5.2rem);line-height:1.02}
.hero.hero-page .tagline{margin-top:1.1rem}
.hero.hero-page .hero-sub{margin-left:0;margin-right:0}

/* fil d'Ariane vers Influxion */
.crumb{display:inline-flex;align-items:center;gap:.6em;font-size:.71rem;letter-spacing:.22em;
  text-transform:uppercase;color:var(--gold-deep);margin-bottom:1.7rem;transition:color .25s}
.crumb:hover{color:var(--gold)}
.crumb i{font-style:normal;display:inline-block;transition:transform .3s}
.crumb:hover i{transform:translateX(-4px)}

/* pastille de registre */
.registre{display:inline-flex;align-items:center;gap:.7em;border:1px solid var(--line);
  border-radius:100px;padding:.48rem 1.1rem;font-size:.68rem;letter-spacing:.2em;
  text-transform:uppercase;color:var(--gold);font-weight:500;margin-bottom:1.6rem}
.registre::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--gold);flex:none}
.registre.explo{color:var(--mist);border-color:var(--line-cool)}
.registre.explo::before{background:var(--mist)}

/* mention de registre écrite */
.reg-note{margin-top:2.6rem;padding:1.5rem 1.7rem;border-left:2px solid var(--gold-deep);
  background:rgba(200,177,132,.045);color:var(--mist);max-width:64ch;font-size:1rem;line-height:1.7}
.reg-note strong{color:var(--ivory);font-weight:500}

/* liste des projets (accueil) */
.projects{margin-top:3.5rem;border-top:1px solid var(--line-cool)}
.project-card{display:grid;grid-template-columns:auto 1fr auto;gap:clamp(1.4rem,4vw,3rem);
  align-items:baseline;padding:2.6rem 0;border-bottom:1px solid var(--line-cool);transition:padding-left .4s}
.project-card:hover{padding-left:.8rem}
.project-card .rn{font-family:var(--serif);font-size:1.4rem;color:var(--gold-deep);
  font-weight:500;transition:color .3s}
.project-card:hover .rn{color:var(--gold)}
.pc-reg{display:block;font-size:.67rem;letter-spacing:.2em;text-transform:uppercase;
  color:var(--gold-deep);margin-bottom:.75rem}
.project-card h3{font-family:var(--serif);font-weight:400;font-size:clamp(1.55rem,4vw,2.3rem);
  margin:0 0 .55rem;letter-spacing:-.01em;transition:color .3s}
.project-card:hover h3{color:var(--gold-bright)}
.project-card p{margin:0;color:var(--mist);max-width:56ch;font-size:1.02rem}
.pc-go{font-size:.73rem;letter-spacing:.14em;text-transform:uppercase;color:var(--gold);
  white-space:nowrap;font-weight:500}
.pc-go i{font-style:normal;display:inline-block;transition:transform .3s}
.project-card:hover .pc-go i{transform:translateX(5px)}
@media(max-width:820px){
  .project-card{grid-template-columns:auto 1fr;gap:1.2rem}
  .pc-go{grid-column:2;margin-top:.9rem}
}

/* états de chargement / vide pour les publications */
.pubs-state{color:var(--faint);font-size:.95rem;padding:1.7rem 0;max-width:60ch;line-height:1.7}
.pubs-state code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.86em;
  color:var(--gold);background:rgba(200,177,132,.08);padding:.12em .45em;border-radius:4px}

/* liens de projet dans le menu burger — sous-niveau visible */


/* ============================================================
   REPÉRAGE — savoir où l'on est, et si un lien sort de la page
   ============================================================ */

/* fil d'Ariane dans l'en-tête (pages projet) */
.brand-path{display:flex;align-items:center;gap:.55rem;min-width:0}
.brand-sep{color:var(--faint);font-size:1rem;flex:none}
.brand-here{font-family:var(--serif);font-size:1.04rem;color:var(--gold);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
@media(max-width:620px){.brand-sep,.brand-here{display:none}}

/* menu burger : un groupe par niveau, libellé explicite */
.mobile-menu{justify-content:flex-start;align-items:stretch;gap:0;
  padding:100px 1.6rem 48px;overflow-y:auto;-webkit-overflow-scrolling:touch}
.mm-group{width:min(430px,100%);margin:0 auto}
.mm-label{display:block;font-family:var(--sans);font-size:.62rem;letter-spacing:.24em;
  text-transform:uppercase;color:var(--faint);margin:1.9rem 0 .7rem;
  padding-bottom:.55rem;border-bottom:1px solid var(--line-cool)}
.mm-label:first-child{margin-top:0}
.mobile-menu .mm-group a{display:block;font-size:1.4rem;padding:.4rem 0}
.mobile-menu .mm-group a.mm-proj{font-size:1.14rem;color:var(--gold)}
.mobile-menu .mm-group a.mm-proj:hover{color:var(--gold-bright)}
/* flèche = ce lien quitte la page courante */
.mobile-menu .mm-group a.mm-out::after{content:"\00a0\2197";opacity:.5;font-size:.78em}
/* page courante : repère, pas un lien */
.mm-current{display:flex;align-items:center;gap:.62em;font-family:var(--serif);
  font-size:1.4rem;padding:.4rem 0;color:var(--ivory)}
.mm-current::before{content:"";width:6px;height:6px;border-radius:50%;
  background:var(--gold);flex:none}
@media(max-height:740px){
  .mobile-menu .mm-group a,.mm-current{font-size:1.16rem;padding:.28rem 0}
  .mobile-menu .mm-group a.mm-proj{font-size:1rem}
  .mm-label{margin:1.25rem 0 .5rem}
}