:root{
  --ink:#0d0d0d;--graphite:#141414;--graphite-2:#1b1b1b;--line-d:#2a2a2a;
  --paper:#f2f0eb;--paper-2:#e8e5de;--line-l:#cfcbc2;
  --muted-d:#9a9a94;--muted-l:#5f5d57;--steel:#b9bcc0;
  --steel-grad:linear-gradient(135deg,#5a5d61 0%,#d8dade 22%,#7c8085 45%,#eceef0 62%,#6c7075 82%,#a9adb2 100%);
  --display:"Archivo",Inter,system-ui,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;letter-spacing:-.005em;line-height:1.55;-webkit-font-smoothing:antialiased}
img,svg{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:1240px;margin:0 auto;padding:0 32px}

/* Bilingual */
html[data-language="fr"] [lang="en"]:not(html){display:none!important}
html[data-language="en"] [lang="fr"]:not(html){display:none!important}

/* ---------- Header ---------- */
header{position:fixed;inset:0 0 auto;z-index:50;transition:background .3s,border-color .3s;border-bottom:1px solid transparent;color:#fff}
header.scrolled{background:rgba(13,13,13,.86);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-color:var(--line-d)}
header.light{position:sticky;background:rgba(242,240,235,.92);color:var(--ink);border-color:var(--line-l);backdrop-filter:blur(14px)}
.nav{height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:14px}
.mark{width:40px;height:28px;position:relative;flex:none}
.mark:before,.mark:after{content:"";position:absolute;width:15px;height:28px;border:3px solid currentColor}
.mark:before{left:0;border-right:0}
.mark:after{right:0;border-left:0}
.brand strong{font-family:var(--display);font-stretch:112%;font-size:14px;letter-spacing:.2em;font-weight:700;white-space:nowrap}
.links{display:flex;gap:28px;font-size:13px;opacity:.85}
.links a{position:relative;padding:4px 0}
.links a:after{content:"";position:absolute;left:0;right:100%;bottom:0;height:1px;background:currentColor;transition:right .25s}
.links a:hover:after{right:0}
.nav-right{display:flex;align-items:center;gap:14px}
.lang{display:flex;border:1px solid rgba(255,255,255,.25);border-radius:999px;padding:3px}
header.light .lang{border-color:var(--line-l)}
.lang button{border:0;background:transparent;color:inherit;opacity:.6;padding:6px 10px;border-radius:999px;font:700 11px/1 Inter,sans-serif;letter-spacing:.06em;cursor:pointer}
.lang button[aria-pressed="true"]{opacity:1;background:#fff;color:var(--ink)}
header.light .lang button[aria-pressed="true"]{background:var(--ink);color:#fff}

.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 22px;border-radius:999px;font-size:13px;font-weight:700;letter-spacing:.01em;border:1px solid currentColor;transition:transform .2s,background .2s,color .2s;white-space:nowrap}
.btn:hover{transform:translateY(-2px)}
.btn .arr{transition:transform .2s}
.btn:hover .arr{transform:translateX(3px)}
.btn.solid{background:#fff;color:var(--ink);border-color:#fff}
.btn.solid:hover{background:var(--steel)}
.btn.ghost{color:#fff;border-color:rgba(255,255,255,.35)}
.btn.ghost:hover{background:rgba(255,255,255,.08)}
.btn.dark{background:var(--ink);color:#fff;border-color:var(--ink)}
.btn.ai{gap:8px}
.ai-dot{width:8px;height:8px;border-radius:50%;background:#7fd1a3;box-shadow:0 0 0 3px rgba(127,209,163,.25)}
header.scrolled .btn.ghost,header:not(.light) .btn.ghost{color:#fff}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:100vh;min-height:100svh;background:var(--ink);color:#fff;overflow:hidden;display:flex;align-items:center;padding:120px 0 80px}
.hero-bg{position:absolute;inset:0;pointer-events:none}
.hero-bg img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:70% 50%;filter:grayscale(.55) contrast(1.08) brightness(.8);transform:scale(1.04);animation:drift 24s ease-in-out infinite alternate}
@keyframes drift{to{transform:scale(1.1) translateX(-1.5%)}}
.hero-bg:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(13,13,13,.94) 0%,rgba(13,13,13,.82) 42%,rgba(13,13,13,.45) 75%,rgba(13,13,13,.6) 100%),linear-gradient(0deg,rgba(13,13,13,.9) 0%,rgba(13,13,13,0) 35%)}
.hero .wrap{position:relative;width:100%;display:grid;grid-template-columns:1.25fr .75fr;gap:48px;align-items:center}
.kicker{display:inline-flex;align-items:center;gap:12px;font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--muted-d);font-weight:600}
.kicker:before{content:"";width:36px;height:2px;background:var(--steel-grad)}
.hero h1{font-family:var(--display);font-stretch:118%;font-weight:800;font-size:clamp(46px,7.4vw,112px);line-height:.9;letter-spacing:-.035em;margin:26px 0 30px;text-transform:uppercase}
.hero h1 em{font-style:normal;background:var(--steel-grad);background-size:200% 200%;-webkit-background-clip:text;background-clip:text;color:transparent;animation:sheen 8s ease-in-out infinite}
@keyframes sheen{0%,100%{background-position:0% 50%}50%{background-position:100% 50%}}
.hero p.lead{font-size:clamp(16px,1.4vw,19px);max-width:560px;color:#c9c9c4;margin:0 0 36px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}

.frame{position:relative;aspect-ratio:1/1.08;background:rgba(13,13,13,.55);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);display:flex;flex-direction:column;justify-content:space-between;padding:44px 40px}
.frame:before,.frame:after{content:"";position:absolute;top:0;bottom:0;width:26%;border:7px solid transparent;border-image:var(--steel-grad) 1}
.frame:before{left:0;border-right:0}
.frame:after{right:0;border-left:0}
.frame .big{font-family:var(--display);font-stretch:118%;font-weight:800;font-size:clamp(84px,10vw,150px);line-height:.85;letter-spacing:-.05em}
.frame .big small{font-size:.38em;letter-spacing:0;margin-left:6px}
.frame .cap{font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--muted-d);margin-top:10px}
.frame ul{list-style:none;margin:0;padding:0;border-top:1px solid var(--line-d)}
.frame li{display:flex;justify-content:space-between;gap:12px;padding:12px 0;border-bottom:1px solid var(--line-d);font-size:14px}
.frame li span:last-child{color:var(--muted-d)}

.scroll-cue{position:absolute;left:50%;bottom:26px;transform:translateX(-50%);width:1px;height:46px;background:linear-gradient(#fff,transparent);opacity:.5;animation:cue 2.2s ease-in-out infinite}
@keyframes cue{0%{transform:translate(-50%,-10px);opacity:0}50%{opacity:.6}100%{transform:translate(-50%,10px);opacity:0}}

/* ---------- Ticker ---------- */
.ticker{background:var(--graphite);color:#fff;border-top:1px solid var(--line-d);border-bottom:1px solid var(--line-d);overflow:hidden;white-space:nowrap}
.ticker-track{display:inline-flex;animation:tick 38s linear infinite;padding:20px 0}
.ticker-track span{font-family:var(--display);font-stretch:115%;font-weight:700;text-transform:uppercase;font-size:clamp(18px,2vw,26px);letter-spacing:.02em;padding:0 28px;display:inline-flex;align-items:center;gap:56px}
.ticker-track span:after{content:"";width:10px;height:10px;background:var(--steel-grad);transform:rotate(45deg)}
@keyframes tick{to{transform:translateX(-50%)}}

/* ---------- Sections ---------- */
section{padding:120px 0;scroll-margin-top:78px}
.head{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:end;margin-bottom:56px}
.head .num{font-size:12px;letter-spacing:.2em;color:var(--muted-l);font-weight:600;margin-bottom:18px;display:block}
.head h2{font-family:var(--display);font-stretch:115%;font-weight:800;text-transform:uppercase;font-size:clamp(34px,4.6vw,64px);line-height:.95;letter-spacing:-.03em;margin:0}
.head p{margin:0;color:var(--muted-l);font-size:16px;max-width:480px;justify-self:end}
.dark{background:var(--ink);color:#fff}
.dark .head .num,.dark .head p{color:var(--muted-d)}

/* Services */
.services{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line-l);border:1px solid var(--line-l)}
.service{background:var(--paper);padding:34px 30px 36px;display:flex;flex-direction:column;gap:14px;position:relative;transition:background .3s}
.service:hover{background:#fff}
.service .pic{height:76px;color:var(--ink);margin-bottom:12px}
.service .pic svg{height:100%;width:auto;transition:transform .4s}
.service:hover .pic svg{transform:translateX(6px)}
.service .idx{position:absolute;top:30px;right:30px;font-size:11px;letter-spacing:.16em;color:#9b978e}
.service h3{font-family:var(--display);font-stretch:110%;font-size:22px;letter-spacing:-.015em;margin:0}
.service p{margin:0;color:var(--muted-l);font-size:14.5px}

/* Numbers */
.numbers{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line-d)}
.numbers div{padding:36px 28px 8px 0}
.numbers div+div{padding-left:28px;border-left:1px solid var(--line-d)}
.numbers b{display:block;font-family:var(--display);font-stretch:118%;font-weight:800;font-size:clamp(34px,4vw,60px);line-height:1;letter-spacing:-.04em;white-space:nowrap;background:var(--steel-grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.numbers span{display:block;margin-top:12px;font-size:13px;color:var(--muted-d);letter-spacing:.04em}

/* Group */
.group{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:80px;position:relative}
.group:before{content:"";position:absolute;left:8%;right:8%;top:30px;height:2px;background:var(--steel-grad);opacity:.5}
.entity{position:relative;background:var(--graphite-2);border:1px solid var(--line-d);padding:76px 28px 32px;transition:border-color .3s,transform .3s}
.entity:hover{border-color:#555;transform:translateY(-4px)}
.entity .dot{position:absolute;top:18px;left:28px;width:26px;height:26px;border-radius:50%;background:var(--ink);border:2px solid var(--steel);display:grid;place-items:center;font-size:11px;font-weight:700}
.entity .role{font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--muted-d)}
.entity h3{font-family:var(--display);font-stretch:110%;font-size:24px;line-height:1.1;margin:10px 0 12px;letter-spacing:-.02em}
.entity p{margin:0;color:var(--muted-d);font-size:14.5px}
.claim{margin-top:44px;display:flex;gap:18px;align-items:flex-start;padding:26px 28px;border:1px solid var(--line-d);max-width:820px}
.claim svg{flex:none;width:30px;color:var(--steel)}
.claim p{margin:0;color:#c9c9c4}
.claim strong{color:#fff}

/* Method */
.steps{display:grid;grid-template-columns:repeat(4,1fr);border-top:2px solid var(--ink)}
.step{padding:30px 26px 10px 0;position:relative}
.step+.step{padding-left:26px;border-left:1px solid var(--line-l)}
.step .n{font-family:var(--display);font-stretch:118%;font-weight:800;font-size:56px;line-height:1;color:transparent;-webkit-text-stroke:1.5px var(--ink);margin-bottom:22px}
.step h3{font-family:var(--display);font-stretch:110%;font-size:20px;margin:0 0 8px}
.step p{margin:0;color:var(--muted-l);font-size:14.5px}
.step .hl{display:inline-block;margin-top:14px;font-size:11px;letter-spacing:.14em;text-transform:uppercase;font-weight:700;background:var(--ink);color:#fff;padding:5px 9px}

/* Projects */
.projects{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.project{grid-column:span 2;position:relative;min-height:300px;background:var(--graphite-2);color:#fff;padding:28px;display:flex;flex-direction:column;justify-content:space-between;overflow:hidden;border:1px solid var(--line-d)}
.project.wide{grid-column:span 3;min-height:340px}
.project svg.bgp{position:absolute;right:-10%;bottom:-12%;width:80%;opacity:.12;color:#fff;transition:transform .6s,opacity .4s}
.project:hover svg.bgp{transform:translate(-4%,-4%) scale(1.04);opacity:.2}
.project .tag{position:relative;display:flex;justify-content:space-between;gap:12px;font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted-d)}
.project .fig{position:relative;font-family:var(--display);font-stretch:118%;font-weight:800;font-size:clamp(34px,3.6vw,52px);line-height:1;letter-spacing:-.04em;margin-bottom:10px}
.project h3{position:relative;font-family:var(--display);font-stretch:108%;font-size:21px;line-height:1.15;margin:0 0 6px;letter-spacing:-.015em}
.project p{position:relative;margin:0;color:var(--muted-d);font-size:14px}

/* Image band */
.band{position:relative;height:78vh;min-height:460px;max-height:760px;overflow:hidden;background:var(--ink);display:flex;align-items:flex-end}
.band img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:50% 40%;filter:grayscale(.35) contrast(1.05)}
.band:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(13,13,13,.88) 0%,rgba(13,13,13,.15) 55%,rgba(13,13,13,.25) 100%)}
.band-text{position:relative;z-index:1;width:100%;padding-bottom:64px}
.band-quote{margin:0;color:#fff;font-family:var(--display);font-stretch:115%;font-weight:800;text-transform:uppercase;font-size:clamp(30px,4.4vw,64px);line-height:.95;letter-spacing:-.03em}

/* Sectors */
.sectors{display:flex;flex-wrap:wrap;gap:10px}
.sectors span{border:1px solid var(--line-l);padding:14px 20px;font-size:15px;font-weight:600;background:#fff;transition:background .2s,color .2s}
.sectors span:hover{background:var(--ink);color:#fff}

/* Innovation */
.innovation{position:relative;overflow:hidden;background:var(--ink);color:#fff;padding:72px 64px;display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.innovation .badge{display:inline-block;font-size:11px;letter-spacing:.18em;text-transform:uppercase;font-weight:700;padding:7px 12px;border:1px solid #f2c14e;color:#f2c14e;margin-bottom:22px}
.innovation h2{font-family:var(--display);font-stretch:115%;font-weight:800;text-transform:uppercase;font-size:clamp(30px,4vw,52px);line-height:.98;letter-spacing:-.03em;margin:0 0 18px}
.innovation p{margin:0;color:#c9c9c4;max-width:540px}
.inno-img{width:100%;height:100%;min-height:320px;object-fit:cover;border:1px solid var(--line-d)}

/* Contact */
.contact{background:var(--ink);color:#fff}
.contact-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:64px;align-items:start}
.contact h2{font-family:var(--display);font-stretch:118%;font-weight:800;text-transform:uppercase;font-size:clamp(40px,5.2vw,80px);line-height:.92;letter-spacing:-.04em;margin:0 0 24px}
.contact h2 em{font-style:normal;background:var(--steel-grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.contact .lead{color:#c9c9c4;font-size:17px;margin:0 0 30px;max-width:520px}
.checklist{list-style:none;margin:0 0 36px;padding:0;counter-reset:c}
.checklist li{counter-increment:c;display:flex;gap:16px;padding:14px 0;border-bottom:1px solid var(--line-d);font-size:15px}
.checklist li:before{content:"0" counter(c);min-width:22px;font-size:11px;letter-spacing:.14em;color:var(--muted-d);padding-top:4px}
.card{background:var(--graphite-2);border:1px solid var(--line-d);padding:34px}
.card img{width:230px;height:auto;filter:invert(1) grayscale(1) brightness(1.1);margin-bottom:30px}
.coords{display:grid;gap:22px;font-size:15px}
.coords .k{font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted-d);margin-bottom:4px}
.coords a{border-bottom:1px solid #555}
.coords a:hover{border-color:#fff}

/* Footer */
footer{background:var(--ink);color:var(--muted-d);border-top:1px solid var(--line-d);padding:30px 0 44px;font-size:12px}
footer.light{background:var(--paper);color:var(--muted-l);border-color:var(--line-l)}
.foot{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
.foot a:hover{color:#fff}
footer.light .foot a:hover{color:var(--ink)}
.foot .credit{color:#fff;font-weight:600;border-bottom:1px solid #555}
footer.light .foot .credit{color:var(--ink);border-color:var(--line-l)}

/* Reveal on scroll (only when JS is running) */
.js .reveal{opacity:0;transform:translateY(24px);transition:opacity .8s ease,transform .8s ease}
.js .reveal.in{opacity:1;transform:none}

/* Legal page */
.legal{max-width:780px;padding:72px 0 110px}
.legal h1{font-family:var(--display);font-stretch:115%;font-weight:800;text-transform:uppercase;font-size:clamp(38px,6vw,64px);line-height:.95;letter-spacing:-.03em;margin:0 0 20px}
.legal h2{font-family:var(--display);font-size:20px;margin:36px 0 8px}
.legal p{color:var(--muted-l);font-size:15px}
.todo{background:#fff3c4;padding:0 4px}

@media (prefers-reduced-motion:reduce){
  *,*:before,*:after{animation:none!important;transition:none!important}
  .js .reveal{opacity:1;transform:none}
}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .links{display:none}
  .hero .wrap{grid-template-columns:1fr}
  .frame{aspect-ratio:auto;max-width:520px;gap:40px}
  .services{grid-template-columns:repeat(2,1fr)}
  .numbers{grid-template-columns:repeat(2,1fr)}
  .numbers div:nth-child(3){padding-left:0;border-left:0}
  .numbers div:nth-child(n+3){border-top:1px solid var(--line-d)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .step:nth-child(3){padding-left:0;border-left:0}
  .step:nth-child(n+3){margin-top:20px}
  .projects{grid-template-columns:repeat(2,1fr)}
  .project,.project.wide{grid-column:span 1}
  .innovation{grid-template-columns:1fr;padding:56px 36px}
  .contact-grid{grid-template-columns:1fr;gap:44px}
}
@media (max-width:700px){
  .wrap{padding:0 16px}
  .nav{height:64px}
  .nav .btn:not(.ai){display:none}
  .nav .btn.ai{padding:8px 12px;font-size:12px;gap:6px}
  .ai-long{display:none}
  .nav-right{gap:8px}
  .brand strong{font-size:12px;letter-spacing:.1em}
  section{padding:80px 0;scroll-margin-top:64px}
  .hero{padding:100px 0 70px}
  .frame{padding:30px 26px}
  .frame:before,.frame:after{border-width:5px}
  .head{grid-template-columns:1fr;gap:18px;margin-bottom:36px}
  .head p{justify-self:start}
  .services{grid-template-columns:1fr}
  .service{padding:28px 22px}
  .group{grid-template-columns:1fr;margin-top:48px}
  .group:before{display:none}
  .steps{grid-template-columns:1fr}
  .step,.step+.step{padding:26px 0 6px;border-left:0}
  .step+.step{border-top:1px solid var(--line-l)}
  .step:nth-child(n+3){margin-top:0}
  .projects{grid-template-columns:1fr}
  .project,.project.wide{min-height:250px}
  .innovation{padding:44px 22px}
  .band{height:60vh;min-height:380px}
  .band-text{padding-bottom:40px}
  .card{padding:26px 22px}
  .claim{padding:20px}
}
@media (max-width:380px){
  .brand{gap:8px}
  .mark{width:30px;height:22px}
  .mark:before,.mark:after{width:11px;height:22px}
  .brand strong{font-size:11px;letter-spacing:.06em}
  .lang button{padding:5px 7px}
  .head h2{font-size:29px}
  .numbers b{font-size:30px}
  .numbers div+div{padding-left:16px}
}