@font-face{font-family:"Manrope";src:url(fonts/manrope-latin-300-normal.woff2) format("woff2");font-weight:300;font-display:swap}
@font-face{font-family:"Manrope";src:url(fonts/manrope-latin-500-normal.woff2) format("woff2");font-weight:500;font-display:swap}
@font-face{font-family:"Manrope";src:url(fonts/manrope-latin-700-normal.woff2) format("woff2");font-weight:700;font-display:swap}
@font-face{font-family:"Goldman";src:url(fonts/goldman-latin-400-normal.woff2) format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:"Goldman";src:url(fonts/goldman-latin-700-normal.woff2) format("woff2");font-weight:700;font-display:swap}

:root{
  --paper:#f3f4f1;--ink:#141716;--stone:#c8ccc5;--mute:#5a625e;--line:rgba(20,23,22,.16);
  --green:#12a05a;--greenD:#0b7a43;--night:#111513;
  --sans:"Manrope",system-ui,sans-serif;--tech:"Goldman",system-ui,sans-serif;
  --pad:clamp(22px,5vw,64px);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
html,body{overflow-x:clip}
body{background:var(--paper);color:var(--ink);font:400 1.05rem/1.6 var(--sans)}
a{color:inherit}
.wrap{max-width:1240px;margin:0 auto;padding-inline:var(--pad)}
h1,h2{font-weight:300;letter-spacing:-.035em;line-height:1.02}
h2{font-size:clamp(2.1rem,5.4vw,4.4rem)}
em{font-style:normal;color:var(--greenD)}
section{padding-block:clamp(72px,10vw,140px)}
.intro{max-width:46ch;color:var(--mute);margin-top:22px}
:focus-visible{outline:3px solid var(--green);outline-offset:3px}

/* cote d'architecte */
.dim{display:flex;align-items:center;gap:14px;margin-bottom:22px;font:400 .78rem var(--tech);letter-spacing:.14em;text-transform:uppercase;color:var(--mute)}
.dim::before{content:"";width:46px;height:9px;border-left:1px solid var(--ink);border-right:0;background:linear-gradient(var(--ink),var(--ink)) left center/100% 1px no-repeat;flex:none}
.dim::after{content:"";height:9px;flex:0 0 70px;border-right:1px solid var(--ink);background:linear-gradient(var(--ink),var(--ink)) left center/100% 1px no-repeat}

/* en-tête */
.top{position:fixed;top:0;left:0;right:0;z-index:50;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:10px var(--pad);background:rgba(243,244,241,.88);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);transition:box-shadow .3s}
.top.sc{box-shadow:0 1px 0 var(--line)}
.mark{display:flex;align-items:center;gap:10px;text-decoration:none;min-height:44px}
.mark svg{width:30px;height:30px;color:var(--ink)}
.mark b{font-family:var(--tech);font-weight:700;font-size:1.35rem;letter-spacing:.02em}
.mark span{font:400 .66rem var(--tech);letter-spacing:.2em;text-transform:uppercase;color:var(--mute);margin-top:6px}
.top nav{display:flex;align-items:center;gap:clamp(14px,2.4vw,32px);font-size:.92rem;font-weight:500}
.top nav a{text-decoration:none;min-height:44px;display:inline-flex;align-items:center}
.top nav a:hover{color:var(--greenD)}
.top nav .cta-s{background:var(--ink);color:var(--paper);padding:0 18px;border-radius:2px}
.top nav .cta-s:hover{background:var(--green);color:#fff}
@media(max-width:760px){.top nav a:not(.cta-s){display:none}.mark span{display:none}}

/* boutons */
.btn{position:relative;display:inline-flex;align-items:center;justify-content:center;min-height:54px;padding:0 30px;background:var(--ink);color:var(--paper);border:0;border-radius:2px;font:500 1rem var(--sans);text-decoration:none;cursor:pointer;overflow:hidden;isolation:isolate}
.btn::before{content:"";position:absolute;inset:0;background:var(--green);transform:translateY(101%);transition:transform .45s cubic-bezier(.6,.05,.2,1);z-index:-1}
.btn:hover::before,.btn:focus-visible::before{transform:none}
.lnk{display:inline-flex;align-items:center;min-height:44px;font-weight:500;text-decoration:none;background:linear-gradient(currentColor,currentColor) left bottom 9px/100% 1px no-repeat;transition:background-size .4s}
.lnk:hover{background-size:0 1px;background-position:right bottom 9px}

/* hero */
.hero{min-height:100svh;display:grid;grid-template-columns:1.2fr 1fr;align-items:center;gap:clamp(10px,2vw,30px);padding-top:110px;padding-bottom:50px}
h1{font-size:clamp(2.3rem,5.1vw,4.7rem);font-weight:300}
.l{display:block;overflow:hidden;padding-bottom:.1em;margin-bottom:-.1em}
.l>span{display:inline-block;transform:translateY(106%)}
.go .l>span{animation:rise 1.1s cubic-bezier(.2,.7,.2,1) forwards}
.go .l:nth-child(2)>span{animation-delay:.14s}
@keyframes rise{to{transform:none}}
.lead{max-width:42ch;margin-top:26px;font-size:1.12rem;color:#323836}
.cta{display:flex;flex-wrap:wrap;align-items:center;gap:12px 28px;margin-top:28px}
.lead,.cta{opacity:0;transform:translateY(14px)}
.go .lead{animation:up .8s .6s forwards}.go .cta{animation:up .8s .75s forwards}
@keyframes up{to{opacity:1;transform:none}}
.hero-fig svg{display:block;width:100%;height:auto;overflow:visible}
@media(max-width:860px){.hero{grid-template-columns:1fr;padding-top:96px;min-height:auto}.hero-fig{max-width:430px;margin:10px auto 0;width:100%}}

/* bâtiment isométrique */
.lay{transform:translateY(var(--oy,0px));transition:transform .15s linear,opacity .5s}
.hero-fig .lay{transform:translateY(-260px);opacity:0;transition:transform 1.1s cubic-bezier(.3,1.1,.4,1),opacity .6s}
.go .hero-fig .lay{transform:none;opacity:1;transition-delay:calc(var(--i)*.26s + .35s)}
.lay polygon,.lay path{stroke:rgba(20,23,22,.55);stroke-width:1;stroke-linejoin:round}
.lay .pipe{stroke:var(--green);stroke-width:2.2;fill:none;stroke-linecap:round}
.lay .dot{fill:var(--green);stroke:none}
.lay .glass{fill:#9db4b0;fill-opacity:.55;stroke:rgba(20,23,22,.5)}
.lay .door{fill:#141716;fill-opacity:.8}
.lay .form{stroke:rgba(20,23,22,.22);fill:none}
.cA .t{fill:#dcdfd8}.cA .lf{fill:#c3c8bf}.cA .rt{fill:#aab0a6}
.cB .t{fill:#3a403d}.cB .lf{fill:#2a2f2d}.cB .rt{fill:#1d2120}
.cC .t{fill:#f6f6f1}.cC .lf{fill:#e5e7df}.cC .rt{fill:#d1d4ca}
.cD .lf{fill:#2e3532}.cD .rt{fill:#202624}.cD .t{fill:#3b4440}
.lay.hl polygon.t,.lay.hl .lf,.lay.hl .rt{stroke:var(--green);stroke-width:2.2}
.bb.has-hl .lay:not(.hl){opacity:.22}
.lbl{opacity:0;transition:opacity .5s;pointer-events:none}
.bb.show .lbl{opacity:1}
.lbl path{stroke:var(--ink);stroke-width:1;fill:none}
.lbl text{font:400 15px var(--tech);fill:var(--ink);letter-spacing:.06em}
.lbl circle{fill:var(--green);stroke:none}
@media(max-width:700px){.lbl{display:none}}

/* ensemble : section épinglée */
.ens{padding:0;height:260vh;position:relative}
.stick{position:sticky;top:0;height:100svh;display:flex;align-items:center;overflow:hidden}
.ens-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:clamp(20px,4vw,70px);align-items:center;width:100%;padding-top:64px}
.ens-txt h2{font-size:clamp(1.9rem,4.4vw,3.6rem);margin-bottom:26px}
.grp{list-style:none;border-top:1px solid var(--line)}
.grp li{border-bottom:1px solid var(--line)}
.g{display:flex;align-items:baseline;gap:18px;width:100%;min-height:52px;padding:12px 0;background:none;border:0;font:inherit;color:var(--mute);text-align:left;cursor:pointer;transition:color .3s,padding .3s}
.g b{font:400 .8rem var(--tech);letter-spacing:.12em}
.g span{font-size:clamp(1.15rem,2vw,1.6rem);font-weight:500;letter-spacing:-.01em}
.g:hover,.g[aria-expanded=true]{color:var(--ink)}
.g[aria-expanded=true]{padding-left:10px;box-shadow:inset 3px 0 0 var(--green)}
.grp p{max-height:0;overflow:hidden;color:var(--greenD);font-weight:500;padding-left:44px;transition:max-height .5s,padding .5s}
.g[aria-expanded=true]+p{max-height:90px;padding-bottom:14px}
.ens-fig svg{display:block;width:100%;height:auto;max-height:78vh;overflow:visible}
@media(max-width:860px){
  .ens{height:300vh}
  .ens-grid{grid-template-columns:1fr;gap:0;align-content:center}
  .ens-fig{order:-1;max-width:330px;margin:0 auto;width:100%}
  .ens-fig svg{max-height:38vh}
  .ens-txt h2{font-size:1.65rem;margin-bottom:12px}
  .ens-txt .dim{margin-bottom:10px}
  .g{min-height:44px;padding:8px 0}
}

/* coordination */
.five{display:flex;flex-wrap:wrap;gap:8px 26px;list-style:none;margin-top:30px;font:400 .9rem var(--tech);letter-spacing:.08em;text-transform:uppercase}
.five b{color:var(--greenD);margin-right:8px}
.gantt{margin-top:46px;position:relative;border-top:1px solid var(--ink)}
.axis{display:flex;justify-content:space-between;padding:8px 0 10px 190px;font:400 .72rem var(--tech);letter-spacing:.1em;text-transform:uppercase;color:var(--mute)}
.rows{position:relative}
.gr{display:grid;grid-template-columns:190px 1fr;align-items:center;min-height:46px;border-top:1px solid var(--line)}
.gr>span{font-weight:500;font-size:.95rem;padding-right:12px}
.track{position:relative;height:100%;min-height:46px;background:repeating-linear-gradient(90deg,transparent 0 calc(10% - 1px),rgba(20,23,22,.07) calc(10% - 1px) 10%)}
.track i{position:absolute;top:13px;bottom:13px;left:calc(var(--s)*1%);width:calc((var(--e) - var(--s))*1%);background:rgba(18,160,90,.14);border:1px solid var(--green);overflow:hidden}
.track b{position:absolute;inset:0;background:var(--green);transform-origin:left;transform:scaleX(0)}
.rows{--lw:190px}
.cur{position:absolute;top:0;bottom:0;left:calc(var(--lw) + (100% - var(--lw))*var(--t,0));width:0;pointer-events:none}
.cur::before{content:"";position:absolute;top:0;bottom:0;left:0;width:2px;margin-left:-1px;background:var(--ink)}
.cur em{position:absolute;top:-30px;left:0;transform:translateX(-50%);background:var(--ink);color:var(--paper);padding:3px 10px;font:400 .68rem var(--tech);letter-spacing:.1em;text-transform:uppercase;white-space:nowrap}
.note{margin-top:22px;font-size:.88rem;color:var(--mute)}
.again{min-height:44px;padding:0 16px;margin-right:10px;background:none;border:1px solid var(--ink);border-radius:2px;font:500 .88rem var(--sans);cursor:pointer;transition:background .3s,color .3s}
.again:hover{background:var(--ink);color:var(--paper)}
@media(max-width:700px){
  .axis{padding-left:112px;font-size:.6rem}
  .gr{grid-template-columns:112px 1fr;min-height:44px}.gr>span{font-size:.78rem;line-height:1.2}
  .rows{--lw:112px}
  .cur em{display:none}
}

/* transport */
.trans{background:var(--night);color:#e9ede9;padding-bottom:0}
.trans .dim{color:#9fa8a3}
.trans .dim::before,.trans .dim::after{border-color:#e9ede9;background-image:linear-gradient(#e9ede9,#e9ede9)}
.trans .intro{color:#9fa8a3}
.trans h2 em{color:#3ddc84}
.road{margin-top:clamp(30px,5vw,60px);padding-inline:var(--pad);overflow:hidden}
.road svg{display:block;width:100%;max-width:1100px;margin:0 auto;height:auto;overflow:visible}
.road path,.road rect,.road circle{fill:none;stroke:#e9ede9;stroke-width:2.4;stroke-linejoin:round;stroke-linecap:round}
.road .dash{stroke:#566059;stroke-dasharray:1 0}
.road .rd{stroke:#e9ede9}
.road .cab{fill:#111513}
.road .win{stroke:#3ddc84}
.road .stripe{stroke:#3ddc84;stroke-width:3}
.road .chassis{stroke-width:2.4}
.road .box rect{fill:#111513;stroke:#3ddc84}
.road .box path{stroke:#3ddc84;stroke-width:1.6}
.road .box{transform:translateX(0)}
.road.go .b1{animation:load 1s .5s cubic-bezier(.5,0,.2,1) forwards}
.road.go .b2{animation:load 1s 1.1s cubic-bezier(.5,0,.2,1) forwards}
.road.go .b3{animation:load 1s 1.7s cubic-bezier(.5,0,.2,1) forwards}
@keyframes load{to{transform:translate(220px,-20px)}}
.road.go .truck,.road.go .b1,.road.go .b2,.road.go .b3{}
.road.go .truck{animation:drive 2.4s 3.1s cubic-bezier(.5,0,.3,1) forwards}
@keyframes drive{to{transform:translateX(230px)}}
.wheel{transform-box:fill-box;transform-origin:center}
.road.go .wheel{animation:spin 2.4s 3.1s cubic-bezier(.5,0,.3,1) forwards}
@keyframes spin{to{transform:rotate(520deg)}}
.road.go .box{}
.road.go .b1{--bx:0}

/* contact */
.c-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:clamp(36px,7vw,110px);align-items:start}
.contact h2{margin-bottom:34px}
.fiche div{display:grid;grid-template-columns:140px 1fr;gap:12px;padding:14px 0;border-top:1px solid var(--line)}
.fiche div:last-child{border-bottom:1px solid var(--line)}
.fiche dt{font:400 .74rem var(--tech);letter-spacing:.12em;text-transform:uppercase;color:var(--mute);padding-top:4px}
.fiche dd{font-weight:500}
.phone{text-decoration:none;font-family:var(--tech);font-size:1.3rem;color:var(--greenD);display:inline-block;min-height:44px}
label{display:block;margin-top:22px;font:400 .74rem var(--tech);letter-spacing:.12em;text-transform:uppercase;color:var(--mute)}
.contact form label:first-of-type{margin-top:0}
input:not([type=hidden]):not([type=checkbox]),textarea{width:100%;background:transparent;border:0;border-bottom:1px solid var(--ink);padding:12px 0;min-height:48px;font:inherit;color:inherit;border-radius:0;outline:0;transition:box-shadow .3s,border-color .3s}
input:focus,textarea:focus{border-bottom-color:var(--green);box-shadow:0 1px 0 var(--green)}
textarea{resize:vertical}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.hp{position:absolute;left:-9999px}
form .btn{margin-top:30px;width:100%}
.form-msg{margin-top:14px;min-height:1.5em;font-size:.95rem}
@media(max-width:860px){.c-grid{grid-template-columns:1fr}}
@media(max-width:480px){.row2{grid-template-columns:1fr;gap:0}.fiche div{grid-template-columns:110px 1fr}}

footer{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px 30px;padding-block:34px 50px;border-top:1px solid var(--line);font-size:.82rem;color:var(--mute)}
footer a{display:inline-block;padding:10px 0}

.js .rv{opacity:0;transform:translateY(18px);transition:opacity .9s,transform .9s cubic-bezier(.2,.7,.2,1)}
.js .rv.in{opacity:1;transform:none}

/* pages légales */
.legal-page{background:var(--paper)}
.legal{max-width:760px;margin:0 auto;padding:60px 24px}
.legal h1{font-size:clamp(2.2rem,5vw,3.4rem);margin:20px 0}
.legal h2{font-size:1.4rem;margin:28px 0 8px;color:var(--greenD);letter-spacing:-.01em}
.legal p{margin:8px 0}
.draft{background:#e9efc9;padding:10px 14px}

@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
  .l>span{transform:none}.lead,.cta{opacity:1;transform:none}
  .hero-fig .lay{transform:none;opacity:1}
  .js .rv{opacity:1;transform:none}
  .road .b1,.road .b2,.road .b3{transform:translate(220px,-20px)}
  .track b{transform:scaleX(1)}
}