@font-face{font-family:"Space Grotesk";src:url("assets/fonts/space-grotesk-latin-400-normal.woff2") format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:"Space Grotesk";src:url("assets/fonts/space-grotesk-latin-500-normal.woff2") format("woff2");font-weight:500;font-display:swap}
@font-face{font-family:"IBM Plex Mono";src:url("assets/fonts/ibm-plex-mono-latin-400-normal.woff2") format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:"IBM Plex Mono";src:url("assets/fonts/ibm-plex-mono-latin-500-normal.woff2") format("woff2");font-weight:500;font-display:swap}
:root{--blue:#191f2c;--paper:#f2ebdd;--rust:#b94f39;--lapis:#315f86;--stone:#a9a59a;--ink:#0b2230;--rule:rgba(25,31,44,.22);--rule-light:rgba(242,235,221,.22);--pad:clamp(1.4rem,4.8vw,5rem);--max:1500px}
*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--blue)}
body{margin:0;overflow-x:hidden;font:400 16px/1.6 "Space Grotesk",sans-serif;color:var(--ink);background:var(--paper) url("assets/kit/texture-papier-creme.webp") top left/1024px 683px repeat}
body.dark{color:var(--paper);background:var(--blue) url("assets/kit/texture-fond-bleu-191f2c.webp") top left/1536px 1024px repeat}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input,select,textarea{font:inherit}
:focus-visible{outline:2px solid var(--rust);outline-offset:4px}
.skip{position:absolute;left:-9999px}.skip:focus{left:1rem;top:1rem;z-index:100;background:var(--paper);color:var(--blue);padding:.8rem 1rem}
.mono,.eyebrow,.index,.caption,.crumb,.tag,.field-label{font-family:"IBM Plex Mono",monospace;text-transform:uppercase;letter-spacing:.14em}
.site-header{min-height:176px;padding:1rem var(--pad);display:grid;grid-template-columns:270px 1fr auto;align-items:center;gap:2.5rem;color:var(--paper);background:var(--blue) url("assets/kit/texture-fond-bleu-191f2c.webp") top left/1536px 1024px repeat;position:relative;z-index:20}
.brand{width:min(100%,16rem);align-self:center}.brand img{width:100%;height:auto}
.site-nav{display:flex;justify-content:center;align-items:center;gap:clamp(1.2rem,2.6vw,3rem);font-size:clamp(.88rem,1vw,1rem)}
.site-nav a[aria-current="page"]{border-bottom:1px solid var(--paper);padding-bottom:.35rem}
.languages{font-size:.74rem}.languages span{opacity:.48;margin-left:.65rem}
.page-main{min-height:70vh}.wrap{width:min(var(--max),100%);margin:auto;padding-left:var(--pad);padding-right:var(--pad)}
.page-hero{min-height:560px;padding:clamp(5rem,10vw,10rem) var(--pad) 6rem;position:relative;overflow:hidden}
.page-hero h1{font:400 clamp(4.2rem,9vw,9rem)/.9 "Space Grotesk",sans-serif;letter-spacing:-.065em;margin:.55rem 0 2.2rem;max-width:9ch}
.page-hero p{font-size:clamp(1.08rem,1.5vw,1.35rem);max-width:42rem;line-height:1.55}
.page-hero .eyebrow{font-size:.72rem}.hero-paper{background:var(--paper) url("assets/kit/texture-papier-creme.webp") top left/1024px 683px repeat;color:var(--blue)}
.hero-ink{background:var(--blue) url("assets/kit/texture-fond-bleu-191f2c.webp") top left/1536px 1024px repeat;color:var(--paper)}
.hero-object{position:absolute;right:-2%;top:7%;width:min(46vw,680px);height:86%;object-fit:contain;opacity:.84;mix-blend-mode:multiply}
.hero-ink .hero-object{mix-blend-mode:screen;opacity:.34}
.hero-mark{position:absolute;right:6%;bottom:10%;width:14rem;height:14rem;border:1px solid currentColor;border-radius:50%;opacity:.12}
.hero-mark:before,.hero-mark:after{content:"";position:absolute;background:currentColor}.hero-mark:before{width:1px;height:120%;left:50%;top:-10%}.hero-mark:after{height:1px;width:120%;top:50%;left:-10%}
.section{padding:clamp(5rem,9vw,9rem) var(--pad);position:relative}.section.paper{background:var(--paper) url("assets/kit/texture-papier-creme.webp") top left/1024px 683px repeat;color:var(--blue)}.section.ink{background:var(--blue) url("assets/kit/texture-fond-bleu-191f2c.webp") top left/1536px 1024px repeat;color:var(--paper)}.expertise-paper{isolation:isolate;overflow:hidden}.expertise-paper .wrap{position:relative;z-index:1}.expertise-paper:before,.expertise-paper:after{content:"";position:absolute;z-index:0;background:url("assets/kit/trame-bleu-riso.webp") center/cover no-repeat;mix-blend-mode:multiply;pointer-events:none}.expertise-paper:before{width:min(50vw,780px);height:min(56vw,870px);top:15%;right:-11%;opacity:.24;transform:rotate(-8deg)}.expertise-paper:after{width:min(43vw,660px);height:min(49vw,750px);top:57%;left:-10%;opacity:.18;transform:rotate(13deg)}
.section-head{display:grid;grid-template-columns:minmax(9rem,18%) 1fr;gap:2rem;margin-bottom:clamp(4rem,8vw,8rem);align-items:start}.section-head .index{font-size:.78rem}.section-head h2{font:400 clamp(2.7rem,5.4vw,5.7rem)/.98 "Space Grotesk",sans-serif;letter-spacing:-.05em;margin:0;max-width:12ch}.section-head p{max-width:48rem;font-size:1.08rem}
.rule{height:1px;background:currentColor;opacity:.25}.button{display:inline-block;margin-top:1.5rem;padding:1rem 1.45rem;border:1px solid currentColor;font-family:"IBM Plex Mono",monospace;text-transform:uppercase;letter-spacing:.12em;font-size:.76rem}.button:hover{background:var(--rust);border-color:var(--rust);color:var(--paper)}
.internal-nav{display:flex;flex-wrap:wrap;gap:.85rem 1.5rem;padding:1.3rem var(--pad);position:sticky;top:0;z-index:15;border-block:1px solid var(--rule);background:rgba(242,235,221,.94);color:var(--blue);backdrop-filter:blur(6px)}.internal-nav a{font-family:"IBM Plex Mono",monospace;text-transform:uppercase;letter-spacing:.11em;font-size:.72rem}
.material-row{display:grid;grid-template-columns:clamp(4rem,8vw,8rem) minmax(220px,1fr) minmax(260px,42%);gap:clamp(2rem,5vw,6rem);align-items:center;min-height:620px;padding:5rem 0;border-top:1px solid var(--rule)}.material-row:first-child{border-top:0}.material-row:nth-child(even){grid-template-columns:clamp(4rem,8vw,8rem) minmax(260px,42%) minmax(220px,1fr)}.material-row:nth-child(even) .material-copy{grid-column:3}.material-row:nth-child(even) .material-visual{grid-column:2;grid-row:1}.material-row .index{align-self:start;font-size:.92rem}.material-copy h2{font:400 clamp(2.8rem,5vw,5.5rem)/.95 "Space Grotesk",sans-serif;letter-spacing:-.05em;margin:0 0 1.7rem}.material-copy p{font-size:1.08rem;max-width:37rem}.material-visual{--ring-x:50%;--ring-y:50%;height:430px;display:flex;align-items:center;justify-content:center;position:relative}.material-visual img{width:100%;height:100%;object-fit:contain}.material-visual:after{content:"";position:absolute;width:7rem;height:7rem;border:1px solid var(--rust);border-radius:50%;left:var(--ring-x);top:var(--ring-y);transform:translate(-50%,-50%);opacity:.48;pointer-events:none}.material-photo{height:clamp(360px,34vw,500px)}.material-photo img{object-fit:cover;aspect-ratio:3/2;box-shadow:0 0 0 1px rgba(25,31,44,.18)}.annotated-visual:after,.article-publication:after{display:none}.image-connector{position:absolute;inset:0;width:100%;height:100%;overflow:visible;pointer-events:none}.image-connector circle,.image-connector polyline{fill:none;stroke:var(--rust);stroke-width:.35;vector-effect:non-scaling-stroke}.image-connector circle{stroke-width:.55}.image-note{position:absolute;left:8%;bottom:15%;padding:.3rem .45rem;background:rgba(242,235,221,.88);color:var(--blue);font:500 .67rem/1.45 "IBM Plex Mono",monospace;text-transform:uppercase;letter-spacing:.13em}.sediment-note{max-width:37rem;margin:2rem 0 0;padding:1.25rem 1.4rem 1.35rem;border-left:3px solid var(--lapis);background:rgba(49,95,134,.075)}.sediment-note .eyebrow{display:block;font-size:.67rem;color:var(--lapis)}.sediment-note p{margin:.65rem 0 0;font-size:.94rem;line-height:1.55}.article-publication{height:auto;min-height:560px;flex-direction:column;gap:1.1rem}.article-publication .article-page{display:block;width:100%;position:relative;z-index:1}.article-publication .article-page img{width:100%;height:auto;object-fit:contain;box-shadow:0 .8rem 2.4rem rgba(25,31,44,.16)}.publication-links{width:100%;display:grid;gap:.55rem;text-align:left}.publication-links a{display:flex;align-items:baseline;gap:.7rem;padding-top:.55rem;border-top:1px solid var(--rule);font-size:.77rem}.publication-links .caption{min-width:7.5rem;font-size:.62rem;color:var(--rust)}
.method-ledger{display:grid;grid-template-columns:repeat(12,1fr);gap:1px;background:var(--rule-light);border-block:1px solid var(--rule-light)}.method{background:var(--blue) url("assets/kit/texture-fond-bleu-191f2c.webp") center/1536px 1024px;padding:clamp(3rem,5vw,5rem);min-height:520px;position:relative}.method:nth-child(1){grid-column:span 7}.method:nth-child(2){grid-column:span 5}.method:nth-child(3){grid-column:span 5}.method:nth-child(4){grid-column:span 7}.method .index{font-size:.75rem}.method h2{font:400 clamp(2.2rem,4vw,4.4rem)/1 "Space Grotesk",sans-serif;letter-spacing:-.04em;margin:2.2rem 0 1.4rem}.method p{max-width:35rem}.method img{width:45%;height:180px;object-fit:contain;object-position:left center;margin-top:2rem;opacity:.55;mix-blend-mode:screen}.method dl{display:grid;grid-template-columns:10rem 1fr;border-top:1px solid var(--rule-light);margin-top:2rem;padding-top:1.2rem}.method dt{font-family:"IBM Plex Mono",monospace;text-transform:uppercase;letter-spacing:.1em;font-size:.7rem}.method dd{margin:0;opacity:.8}
.protocol{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:4rem}.protocol div{min-height:220px;padding:2rem;border-left:1px solid var(--rule-light)}.protocol div:first-child{border-left:0}.protocol b{display:block;font-family:"IBM Plex Mono",monospace;font-size:.78rem;letter-spacing:.12em;margin-bottom:2.5rem}.protocol span{font-size:1.1rem}
.case-intro{display:grid;grid-template-columns:1.15fr .85fr;min-height:680px}.case-photo{background:url("assets/kit/FOUILLE_01.png") center/cover;filter:contrast(.9);opacity:.86}.case-copy{padding:clamp(4rem,7vw,8rem);align-self:center}.case-copy h2{font:400 clamp(3rem,5vw,5.5rem)/.96 "Space Grotesk",sans-serif;letter-spacing:-.05em;margin:1rem 0 2rem}.case-schema{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--rule);margin-top:4rem}.case-schema div{background:var(--paper);padding:2rem;min-height:180px}.case-schema b{display:block;font-family:"IBM Plex Mono",monospace;font-size:.72rem;letter-spacing:.1em;margin-bottom:1.5rem}
.empty-editorial{min-height:480px;display:grid;grid-template-columns:1fr 1fr;gap:clamp(3rem,8vw,9rem);align-items:center}.empty-editorial h2{font:400 clamp(3rem,6vw,6.5rem)/.92 "Space Grotesk",sans-serif;letter-spacing:-.055em;margin:0}.empty-editorial p{font-size:1.1rem;max-width:36rem}
.filters{display:flex;gap:.8rem;flex-wrap:wrap;margin-bottom:5rem}.filters span{padding:.8rem 1rem;border:1px solid var(--blue);font-family:"IBM Plex Mono",monospace;font-size:.72rem;letter-spacing:.12em}.filters span:first-child{color:var(--paper);background:var(--blue)}
.journal-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:clamp(3rem,7vw,8rem)}.journal-lead{border-top:1px solid var(--rule);padding-top:3rem}.journal-lead h2{font:400 clamp(3rem,5vw,5.2rem)/.98 "Space Grotesk",sans-serif;letter-spacing:-.05em;margin:1rem 0 2rem}.bibliography{border-left:1px solid var(--rule);padding-left:clamp(2rem,4vw,4rem)}.bibliography h3{font-size:1.6rem;margin:0 0 2rem}.bib-fields{display:grid;gap:0}.bib-fields span{padding:1rem 0;border-top:1px solid var(--rule);font-family:"IBM Plex Mono",monospace;font-size:.75rem;letter-spacing:.08em}
.tariff-section{padding-left:0;padding-right:0}.tariff-band{position:relative;isolation:isolate;overflow:hidden;background:var(--paper) url("assets/kit/texture-papier-creme.webp") top left/1024px 683px repeat;color:var(--blue);border-block:1px solid rgba(242,235,221,.28)}.tariff-band-grain{position:absolute;inset:-25% -5%;z-index:-1;background:url("assets/kit/trame-bleu-riso.webp") center/70% 150% repeat-x;opacity:.18;mix-blend-mode:multiply;transform:rotate(-2deg)}.tariff-flow{display:grid;grid-template-columns:repeat(3,1fr);gap:0}.tariff-step{padding:3.4rem;min-height:340px;border-left:1px solid var(--rule)}.tariff-step:first-child{border-left:0}.tariff-step b{font-family:"IBM Plex Mono",monospace;font-size:.8rem;letter-spacing:.12em;color:var(--rust)}.tariff-step h2{font-size:2.4rem;line-height:1.1;margin:3rem 0 1.5rem}.tariff-notice{max-width:58rem;margin:4rem 0 0;padding:1.4rem 1.6rem;border-left:3px solid var(--rust);background:rgba(242,235,221,.07);font-family:"IBM Plex Mono",monospace;font-size:.84rem}.tariff-notice strong{color:var(--rust)}.included{display:grid;grid-template-columns:1fr 1fr;gap:4rem;margin-top:5rem}.included ul{list-style:none;padding:0;margin:0}.included li{padding:1rem 0;border-top:1px solid var(--rule-light)}
.contact-paper{background:var(--paper) url("assets/kit/texture-papier-creme.webp") top left/1024px 683px repeat;color:var(--blue)}.contact-layout{display:grid;grid-template-columns:.82fr 1.18fr;gap:clamp(4rem,10vw,12rem);padding-top:5rem;padding-bottom:8rem}.contact-details h1{font:400 clamp(4rem,8vw,8rem)/.9 "Space Grotesk",sans-serif;letter-spacing:-.065em;margin:1rem 0 4rem}.contact-details h2,.form-intro h2{font:400 clamp(2rem,3vw,3.4rem)/1 "Space Grotesk",sans-serif;letter-spacing:-.04em;margin:0 0 2rem}.contact-line{padding:1.5rem 0;border-top:1px solid var(--rule)}.contact-line .field-label{display:block;font-size:.68rem;margin-bottom:.5rem;color:var(--rust)}.contact-form{padding-top:4rem}.form-intro{margin-bottom:3.5rem}.form-intro .index{font-size:.72rem;color:var(--rust)}.form-intro h2{margin:.8rem 0 1rem}.form-intro p{max-width:38rem}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:2.4rem}.field{display:grid;gap:.8rem}.field.full{grid-column:1/-1}.field label{font-family:"IBM Plex Mono",monospace;text-transform:uppercase;letter-spacing:.12em;font-size:.75rem;color:var(--rust)}.field input,.field select,.field textarea{width:100%;border:1px solid var(--rule);border-width:0 0 1px;background:rgba(25,31,44,.025);color:var(--blue);padding:1rem .75rem;border-radius:0}.field input::placeholder,.field textarea::placeholder{color:rgba(25,31,44,.46)}.field textarea{min-height:180px;resize:vertical}.contact-form button{background:var(--blue);color:var(--paper);border:0;padding:1rem 1.5rem;font-family:"IBM Plex Mono",monospace;text-transform:uppercase;letter-spacing:.12em;cursor:pointer}
.site-footer{padding:3.5rem var(--pad);display:grid;grid-template-columns:1.4fr 1fr auto;gap:2rem;align-items:center;font-size:.8rem;color:#c8cbc4;background:var(--blue) url("assets/kit/texture-fond-bleu-191f2c.webp") center/1536px 1024px repeat;border-top:1px solid var(--rule-light)}.footlogo{font-size:1.25rem;letter-spacing:.25em;color:var(--paper)}.legal{display:flex;gap:1.8rem;font-size:.94rem;font-weight:500}.social svg{width:1.65rem;height:1.65rem;fill:var(--paper)}
@media(max-width:980px){.site-header{min-height:158px;grid-template-columns:230px 1fr auto}.brand{width:14.5rem}.site-nav{gap:1rem;font-size:.78rem}.hero-object{right:-20%;width:62vw}.material-row,.material-row:nth-child(even){grid-template-columns:4rem 1fr;min-height:auto}.material-row .material-visual,.material-row:nth-child(even) .material-visual{grid-column:2;grid-row:auto}.material-row:nth-child(even) .material-copy{grid-column:2}.method:nth-child(n){grid-column:span 6}.protocol{grid-template-columns:1fr 1fr}.case-intro{grid-template-columns:1fr}.case-photo{min-height:480px}.journal-grid{grid-template-columns:1fr}.bibliography{border-left:0;border-top:1px solid var(--rule);padding:3rem 0 0}.tariff-flow{grid-template-columns:1fr}.contact-layout{grid-template-columns:1fr}.site-footer{grid-template-columns:1fr 1fr}.legal{grid-column:1/-1;grid-row:2}}
@media(max-width:720px){.site-header{min-height:116px;grid-template-columns:1fr auto;padding:.5rem var(--pad)}.brand{width:11rem}.site-nav{display:none}.page-hero{min-height:620px;padding-top:5rem}.page-hero h1{font-size:clamp(3.6rem,17vw,5.5rem)}.hero-object{right:-42%;top:28%;width:95vw;height:62%;opacity:.42}.section-head{grid-template-columns:1fr}.internal-nav{overflow:auto;flex-wrap:nowrap}.material-row,.material-row:nth-child(even){grid-template-columns:1fr;gap:1.5rem;padding:4rem 0}.material-row .index{grid-column:1}.material-row .material-copy,.material-row:nth-child(even) .material-copy{grid-column:1}.material-row .material-visual,.material-row:nth-child(even) .material-visual{grid-column:1;height:300px}.material-row .article-publication{height:auto}.publication-links a{display:block}.publication-links .caption{display:block;margin-bottom:.25rem}.method-ledger{display:block}.method{min-height:auto;border-top:1px solid var(--rule-light)}.method img{width:72%}.protocol{grid-template-columns:1fr}.protocol div{border-left:0;border-top:1px solid var(--rule-light)}.case-schema{grid-template-columns:1fr}.empty-editorial{grid-template-columns:1fr}.journal-grid{display:block}.tariff-flow{display:block}.included{grid-template-columns:1fr}.contact-layout{padding-top:2rem}.form-grid{grid-template-columns:1fr}.field.full{grid-column:1}.site-footer{grid-template-columns:1fr}.legal{grid-column:auto;grid-row:auto;flex-wrap:wrap}.site-footer .social{display:block}}

/* Expertise: nappes de trame verticales, comme des passages d'encre. */
.expertise-paper:before{width:min(30vw,430px);height:min(68vw,980px);right:-5%;transform:none}
.expertise-paper:after{width:min(27vw,390px);height:min(62vw,900px);left:-4%;transform:none}

/* Méthodes: chaque visuel conserve son langage propre sur le papier encré. */
.method-media{position:relative;margin:2.25rem 0 0;min-height:220px;display:flex;align-items:center}
.method .method-media img{display:block;max-width:100%;margin:0;object-fit:contain;opacity:1;mix-blend-mode:normal}
.method-media--field img{width:min(100%,680px);height:290px;object-position:left center;opacity:.9!important;mix-blend-mode:screen!important}
.method-media--microscope{overflow:hidden}
.method-media--microscope:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent 72%,var(--blue));pointer-events:none}
.method-media--microscope img{width:100%!important;height:280px!important;object-fit:cover!important;object-position:center;opacity:.82!important;mix-blend-mode:luminosity!important}
.method-media--spectrum{display:block}
.method-media--spectrum img{width:100%!important;height:auto!important}
.method-media figcaption{font:400 .62rem/1.5 "IBM Plex Mono",monospace;letter-spacing:.08em;text-transform:uppercase;opacity:.62;margin-top:.5rem}
.method-media--crossed{min-height:330px}
.method-media--crossed .sample{position:absolute;left:0;top:-1rem;width:58%!important;height:340px!important;object-position:left center;opacity:.88!important}
.method-media--crossed .spectrum{position:absolute;right:0;bottom:.5rem;width:58%!important;height:auto!important;filter:drop-shadow(0 0 12px var(--blue))}
@media(max-width:720px){.method-media--field img,.method-media--microscope img{width:100%!important;height:240px!important}.method-media--crossed{min-height:300px}.method-media--crossed .sample{width:68%!important;height:300px!important}.method-media--crossed .spectrum{width:72%!important}}

/* Rejoindre — manifeste collectif */
.join-hero{isolation:isolate}.join-hero:before,.join-hero:after{content:"";position:absolute;z-index:-1;pointer-events:none}.join-hero:before{inset:4% -8% 0 45%;background:url("assets/kit/ARDECHE_CANYON_RISO.png") center/contain no-repeat;opacity:.16;mix-blend-mode:screen;filter:grayscale(1)}.join-hero:after{width:44%;height:88%;right:-4%;top:6%;background:url("assets/kit/trame-bleu-riso.webp") center/cover no-repeat;opacity:.22;mix-blend-mode:screen}.join-hero-copy{position:relative;z-index:2;max-width:56rem}.join-hero h1{max-width:11ch}
.join-intro .section-head h2{max-width:10ch}.join-intro .section-head p{font-size:1.12rem}.join-principles{display:grid;grid-template-columns:repeat(4,1fr);background:var(--blue) url("assets/kit/texture-fond-bleu-191f2c.webp") center/1536px 1024px repeat;color:var(--paper);border-block:1px solid var(--rule-light)}.join-principle{min-height:430px;padding:clamp(2rem,4vw,4.5rem);border-left:1px solid var(--rule-light)}.join-principle:first-child{border-left:0}.join-principle .index{font-size:.76rem;color:var(--rust)}.join-principle h2{font:400 clamp(2rem,3.4vw,3.8rem)/1 "Space Grotesk",sans-serif;letter-spacing:-.04em;margin:4.5rem 0 2rem}.join-principle p{max-width:24rem;opacity:.82}.join-path-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(3rem,9vw,10rem);align-items:start}.join-path h2{font:400 clamp(3rem,6vw,6.6rem)/.92 "Space Grotesk",sans-serif;letter-spacing:-.055em;margin:2rem 0 0;max-width:9ch}.join-copy{font-size:1.08rem;max-width:44rem}.join-copy p{margin:0 0 1.4rem}.join-note{margin-top:2.4rem!important;padding:1.2rem 1.4rem;border-left:3px solid var(--rust);background:rgba(185,79,57,.07);font-family:"IBM Plex Mono",monospace;font-size:.82rem;letter-spacing:.04em}.join-doc .section-head{margin-bottom:0}

/* Informations administratives — registre éditorial */
.admin-hero h1{max-width:12ch;font-size:clamp(3.7rem,8vw,8rem)}.admin-stamp{position:absolute;right:8%;bottom:15%;width:12rem;height:12rem;display:grid;place-items:center;border:2px solid var(--rust);border-radius:50%;color:var(--rust);font:500 .85rem/1.6 "IBM Plex Mono",monospace;letter-spacing:.14em;text-align:center;transform:rotate(-7deg);opacity:.72}.admin-layout{display:grid;grid-template-columns:.75fr 1.25fr;gap:clamp(3rem,9vw,10rem);align-items:start}.admin-layout h2{font:400 clamp(4rem,9vw,9rem)/.85 "Space Grotesk",sans-serif;letter-spacing:-.07em;margin:2rem 0}.admin-name{max-width:22rem;font:500 .85rem/1.7 "IBM Plex Mono",monospace;text-transform:uppercase;letter-spacing:.1em}.admin-ledger{margin:0}.admin-ledger div{display:grid;grid-template-columns:minmax(9rem,34%) 1fr;gap:2rem;padding:1.35rem 0;border-top:1px solid var(--rule)}.admin-ledger dt{font:500 .7rem/1.5 "IBM Plex Mono",monospace;text-transform:uppercase;letter-spacing:.1em;color:var(--rust)}.admin-ledger dd{margin:0;font-size:1.04rem}.document-links{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--rule-light)}.document-links a{min-height:330px;padding:clamp(2rem,3.5vw,3.5rem);display:flex;flex-direction:column;background:var(--blue);transition:background-color .18s,color .18s}.document-links a:hover{background:var(--paper);color:var(--blue)}.document-links .index{font-size:.66rem;opacity:.7}.document-links strong{font:400 clamp(1.8rem,3vw,3rem)/1.05 "Space Grotesk",sans-serif;letter-spacing:-.035em;margin:4rem 0 2rem}.document-links a>span:last-child{margin-top:auto;font:500 .72rem/1.4 "IBM Plex Mono",monospace;text-transform:uppercase;letter-spacing:.1em}.admin-values .section-head{margin-bottom:0}.admin-values .section-head h2{max-width:15ch}
@media(max-width:1100px){.join-principles{grid-template-columns:1fr 1fr}.join-principle:nth-child(3){border-left:0;border-top:1px solid var(--rule-light)}.join-principle:nth-child(4){border-top:1px solid var(--rule-light)}.document-links{grid-template-columns:1fr}.document-links a{min-height:240px}.site-nav{gap:.85rem;font-size:.75rem}}
@media(max-width:720px){.join-orbit{right:-38%;top:35%;width:95vw;opacity:.45}.join-principles{grid-template-columns:1fr}.join-principle{min-height:auto;border-left:0;border-top:1px solid var(--rule-light)}.join-principle:first-child{border-top:0}.join-principle h2{margin:2.4rem 0 1.2rem}.join-path-grid,.admin-layout{grid-template-columns:1fr}.admin-stamp{right:-3rem;bottom:7%;width:9rem;height:9rem;opacity:.42}.admin-ledger div{grid-template-columns:1fr;gap:.5rem}.document-links a{min-height:210px}.document-links strong{margin:2.5rem 0 1.5rem}}

/* Actualités */
.news-hero h1{max-width:10ch}.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--rule);border-block:1px solid var(--rule)}.news-card{background:var(--paper) url("assets/kit/texture-papier-creme.webp") top left/1024px 683px repeat;padding:clamp(2rem,4vw,4rem);min-height:440px;display:flex;flex-direction:column}.news-card--lead{grid-column:1/-1;min-height:390px}.news-meta{display:flex;justify-content:space-between;gap:1rem;font:500 .68rem/1.5 "IBM Plex Mono",monospace;text-transform:uppercase;letter-spacing:.12em;color:var(--rust)}.news-card h2{font:400 clamp(2.3rem,4vw,4.5rem)/.96 "Space Grotesk",sans-serif;letter-spacing:-.05em;margin:4rem 0 1.5rem;max-width:15ch}.news-card p{max-width:42rem}.news-card a{margin-top:auto;padding-top:2.5rem;font-family:"IBM Plex Mono",monospace;font-size:.76rem;text-transform:uppercase;letter-spacing:.1em}.news-to-publications{margin-top:7rem;display:grid;grid-template-columns:10rem 1fr auto;gap:2rem;align-items:end}.news-to-publications h2{font:400 clamp(2.5rem,5vw,5rem)/.95 "Space Grotesk",sans-serif;letter-spacing:-.05em;margin:0;max-width:12ch}

/* Publications */
.publications-hero h1{max-width:11ch}.publication-heading{display:grid;grid-template-columns:8rem 1fr;align-items:start;margin-bottom:4rem}.publication-heading h2{font:400 clamp(3.5rem,7vw,7rem)/.88 "Space Grotesk",sans-serif;letter-spacing:-.06em;margin:0}.publication-list{border-top:1px solid currentColor}.publication-item{display:grid;grid-template-columns:6rem 1fr auto;gap:2rem;align-items:start;padding:2rem 0;border-bottom:1px solid currentColor}.publication-item time,.publication-item>span{font:500 .7rem/1.5 "IBM Plex Mono",monospace;text-transform:uppercase;letter-spacing:.1em;color:var(--rust)}.publication-item h3{font:400 clamp(1.35rem,2vw,2rem)/1.15 "Space Grotesk",sans-serif;margin:0 0 .6rem;max-width:40ch}.publication-item p{margin:0;opacity:.72}.publication-item:hover h3{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:.25rem}

@media(max-width:980px){.news-to-publications{grid-template-columns:1fr}.tariff-step{min-height:auto}}
@media(max-width:720px){.join-hero:before{inset:32% -34% 0 30%;opacity:.1}.join-hero:after{width:70%;right:-24%;opacity:.15}.news-grid{grid-template-columns:1fr}.news-card--lead{grid-column:auto}.news-card{min-height:380px}.publication-heading{grid-template-columns:1fr;gap:1rem}.publication-item{grid-template-columns:4rem 1fr}.publication-item>span{grid-column:2}.tariff-step{border-left:0;border-top:1px solid var(--rule)}.contact-details h1{font-size:3.8rem}}

/* Méthodes — atlas autour d'une séquence sédimentaire */
.method-hero{min-height:540px}.method-atlas{padding:clamp(5rem,8vw,8rem) 0;background:var(--paper) url("assets/kit/texture-papier-creme.webp") top left/1024px 683px repeat;color:var(--blue);overflow:hidden}.method-atlas-intro{display:grid;grid-template-columns:minmax(9rem,18%) 1fr;gap:2rem;align-items:start;margin-bottom:3rem}.method-atlas-intro .index{font-size:.78rem}.method-atlas-intro h2{font:400 clamp(2.8rem,5vw,5.4rem)/.95 "Space Grotesk",sans-serif;letter-spacing:-.05em;margin:0;max-width:13ch}.method-atlas-intro p{max-width:48rem;font-size:1.08rem}.method-map{position:relative;width:min(1500px,100%);margin:0 auto;aspect-ratio:3/2}.method-map>img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain}.method-callout{position:absolute;z-index:2;width:clamp(9rem,15vw,14rem);padding:.55rem .7rem;background:rgba(242,235,221,.9);border-left:2px solid var(--rust);box-shadow:0 0 0 1px rgba(25,31,44,.08)}.method-callout strong{display:block;font:500 clamp(.68rem,.9vw,.82rem)/1.25 "IBM Plex Mono",monospace;text-transform:uppercase;letter-spacing:.08em}.method-callout span{display:block;margin-top:.25rem;font-size:clamp(.72rem,.85vw,.86rem);line-height:1.35}.method-callout--1{left:1%;top:3%}.method-callout--2{left:1%;top:28%}.method-callout--3{left:2%;top:55%}.method-callout--4{left:3%;top:83%}.method-callout--5{right:1%;top:3%}.method-callout--6{right:1%;top:29%}.method-callout--7{right:1%;top:57%}.method-callout--8{right:2%;top:83%}.method-mobile-list{display:none}.method-chain{display:grid;grid-template-columns:repeat(4,1fr);margin-top:2rem;border-block:1px solid var(--rule)}.method-chain div{min-height:170px;padding:1.7rem;border-left:1px solid var(--rule)}.method-chain div:first-child{border-left:0}.method-chain b{display:block;font:500 .72rem "IBM Plex Mono",monospace;color:var(--rust);margin-bottom:2.5rem}.method-chain span{font-size:1rem}
.method-evidence{position:absolute;z-index:1;aspect-ratio:1;border:2px solid #17325b;border-radius:50%;overflow:hidden;background:var(--paper);box-shadow:0 0 0 3px rgba(242,235,221,.8)}.method-evidence img{width:100%;height:100%;object-fit:cover}.method-evidence--organic{left:5.5%;top:4.6%;width:15%}.method-evidence--meb{left:3.2%;top:29.6%;width:14.8%}.method-evidence--c14{left:6.7%;top:75.2%;width:14.4%;display:grid;place-content:center;text-align:center;color:#17325b;background:var(--paper) url("assets/kit/texture-papier-creme.webp") center/cover}.method-evidence--c14 strong{font:500 clamp(2.2rem,5vw,5rem)/.9 "Space Grotesk",sans-serif;letter-spacing:-.06em}.method-evidence--c14 sup{font-size:.48em;vertical-align:super}.method-evidence--c14 span{font:500 clamp(.48rem,.7vw,.68rem)/1.2 "IBM Plex Mono",monospace;text-transform:uppercase;letter-spacing:.1em;margin-top:.45rem}.method-evidence--petro{right:5.5%;top:5.5%;width:14.8%}.method-evidence--spectrum{right:1.5%;top:30.7%;width:14.4%}.method-evidence--spectrum img{object-fit:cover}.method-callout--1{left:18%;top:5%}.method-callout--2{left:16.8%;top:30%}.method-callout--3{left:18%;top:56%}.method-callout--4{left:18%;top:83%}.method-callout--5{right:17.2%;top:5%}.method-callout--6{right:16.3%;top:31%}.method-callout--7{right:17%;top:58%}.method-callout--8{right:17%;top:84%}
@media(max-width:980px){.method-map{aspect-ratio:3/2}.method-callout{display:none}.method-mobile-list{display:grid;padding:0 var(--pad);border-top:1px solid var(--rule)}.method-mobile-list div{display:grid;gap:.35rem;padding:1rem 0;border-bottom:1px solid var(--rule)}.method-mobile-list strong{font:500 .75rem "IBM Plex Mono",monospace;text-transform:uppercase;letter-spacing:.08em;color:var(--rust)}.method-mobile-list span{font-size:.92rem}.method-chain{grid-template-columns:1fr 1fr}.method-chain div:nth-child(3){border-left:0;border-top:1px solid var(--rule)}.method-chain div:nth-child(4){border-top:1px solid var(--rule)}}
@media(max-width:720px){.method-atlas-intro{grid-template-columns:1fr}.method-map{aspect-ratio:3/2;margin:1rem 0}.method-callout{display:none}.method-mobile-list{display:grid;padding:0 var(--pad);border-top:1px solid var(--rule)}.method-mobile-list div{display:grid;gap:.35rem;padding:1rem 0;border-bottom:1px solid var(--rule)}.method-mobile-list strong{font:500 .75rem "IBM Plex Mono",monospace;text-transform:uppercase;letter-spacing:.08em;color:var(--rust)}.method-mobile-list span{font-size:.92rem}.method-chain{grid-template-columns:1fr;margin-top:3rem}.method-chain div{min-height:auto;border-left:0;border-top:1px solid var(--rule)}.method-chain div:first-child{border-top:0}.method-chain b{margin-bottom:1rem}}

/* Tarifs 2026–2027 */
.tariff-list-head{display:grid;grid-template-columns:minmax(8rem,.28fr) 1fr;gap:2rem;align-items:baseline;margin:5rem 0 1.5rem}.tariff-list-head h2{font:400 clamp(2.5rem,5vw,5rem)/1 "Space Grotesk",sans-serif;letter-spacing:-.05em;margin:0}.tariff-list{border-top:1px solid var(--rule-light);margin-bottom:2rem}.tariff-item{display:grid;grid-template-columns:minmax(0,1fr) minmax(16rem,.42fr);gap:3rem;padding:1.7rem 0;border-bottom:1px solid var(--rule-light)}.tariff-item h3{font:500 clamp(1.15rem,2vw,1.55rem)/1.2 "Space Grotesk",sans-serif;margin:0 0 .55rem}.tariff-item p{max-width:42rem;margin:0;opacity:.78}.tariff-price{display:flex;flex-direction:column;align-items:flex-start;gap:.25rem;border-left:2px solid var(--rust);padding-left:1.5rem}.tariff-price strong{font:500 clamp(1.05rem,1.7vw,1.4rem)/1.25 "Space Grotesk",sans-serif}.tariff-price span{font:400 .75rem/1.5 "IBM Plex Mono",monospace;opacity:.75}
@media(max-width:720px){.tariff-list-head,.tariff-item{grid-template-columns:1fr;gap:1rem}.tariff-list-head{margin-top:4rem}.tariff-price{margin-top:.25rem}}

/* Navigation et mise en page pour écrans étroits. */
.mobile-menu{display:none}
@media(max-width:980px){
  .site-header{min-height:88px;grid-template-columns:1fr auto;gap:1rem;padding:1rem var(--pad)}
  .brand{width:min(47vw,10.5rem)}
  .site-header>.site-nav{display:none}
  .languages{display:none}
  .mobile-menu{display:block;position:relative;z-index:30;justify-self:end;color:var(--paper)}
  .mobile-menu summary{list-style:none;cursor:pointer;border:1px solid currentColor;padding:.65rem .9rem;font:500 .78rem/1 "IBM Plex Mono",monospace;letter-spacing:.12em;text-transform:uppercase}
  .mobile-menu summary::-webkit-details-marker{display:none}
  .mobile-menu summary:after{content:"☰";margin-left:.8rem;font-size:1rem}
  .mobile-menu[open] summary:after{content:"×"}
  .mobile-menu .site-nav{display:flex;flex-direction:column;align-items:stretch;gap:0;position:absolute;right:0;top:calc(100% + .5rem);width:min(78vw,19rem);padding:.5rem 1.1rem;background:var(--blue);border:1px solid rgba(242,235,221,.35);box-shadow:0 1rem 2rem rgba(0,0,0,.35);font-size:1rem}
  .mobile-menu .site-nav a{display:block;padding:.75rem .25rem;border-bottom:1px solid rgba(242,235,221,.2)}
  .mobile-menu .site-nav a:last-child{border-bottom:0}
  .mobile-menu .site-nav a[aria-current="page"]{border-bottom:1px solid var(--rust)}
  .page-hero{min-height:0;padding:3.5rem var(--pad) 5rem}
  .page-hero h1{font-size:clamp(3rem,13vw,5rem);overflow-wrap:break-word}
  .hero-object{right:-35%;top:25%;width:105vw;height:70%;opacity:.24}
  .section{padding-top:4rem;padding-bottom:4rem}
  .section-head h2,.material-copy h2{font-size:clamp(2.3rem,11vw,4rem)}
  .material-row,.material-row:nth-child(even){padding:3rem 0}
  .tariff-step{padding:2rem 1rem}
  .site-footer{gap:1.5rem}
  .legal{gap:.8rem 1.3rem}
  .publication-item{gap:1rem}
}

/* Réseau de partenaires */
.partners-hero h1{max-width:12ch}.partners-intro .section-head{margin-bottom:0}.partners-intro .section-head h2,.partners-section .section-head h2{max-width:17ch}
.partners-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));border-top:1px solid var(--rule);border-left:1px solid var(--rule)}
.partner-card{padding:clamp(2rem,3.2vw,3.5rem);border-right:1px solid var(--rule);border-bottom:1px solid var(--rule);display:flex;flex-direction:column;min-height:330px;min-width:0}
.partner-card .index{font-size:.67rem;color:var(--rust)}.partner-card h3{font:400 clamp(1.8rem,2.6vw,3.1rem)/1.04 "Space Grotesk",sans-serif;letter-spacing:-.04em;margin:2rem 0 1rem}
.partner-card p{max-width:40rem;margin:0 0 1.6rem}.partner-card a{margin-top:auto;align-self:flex-start;border-bottom:1px solid currentColor;font:500 .72rem/1.5 "IBM Plex Mono",monospace;text-transform:uppercase;letter-spacing:.07em}.partner-card a:hover{color:var(--rust)}
.partners-note{max-width:55rem;margin:2.5rem 0 0;font-size:.88rem;opacity:.8}
@media(max-width:1300px) and (min-width:981px){.site-header{grid-template-columns:1fr auto;min-height:88px;padding:1rem var(--pad)}.brand{width:10.5rem}.site-header>.site-nav,.languages{display:none}.mobile-menu{display:block;position:relative;z-index:30;justify-self:end;color:var(--paper)}.mobile-menu summary{list-style:none;cursor:pointer;border:1px solid currentColor;padding:.65rem .9rem;font:500 .78rem/1 "IBM Plex Mono",monospace;letter-spacing:.12em;text-transform:uppercase}.mobile-menu summary::-webkit-details-marker{display:none}.mobile-menu summary:after{content:"☰";margin-left:.8rem}.mobile-menu[open] summary:after{content:"×"}.mobile-menu .site-nav{display:flex;flex-direction:column;align-items:stretch;gap:0;position:absolute;right:0;top:calc(100% + .5rem);width:19rem;padding:.5rem 1.1rem;background:var(--blue);border:1px solid rgba(242,235,221,.35);box-shadow:0 1rem 2rem rgba(0,0,0,.35);font-size:1rem}.mobile-menu .site-nav a{display:block;padding:.7rem .25rem;border-bottom:1px solid rgba(242,235,221,.2)}}
@media(min-width:1301px){.site-header>.site-nav{gap:clamp(.8rem,1.35vw,1.8rem);white-space:nowrap}}
@media(max-width:720px){.partners-grid{grid-template-columns:1fr}.partner-card{min-height:0}.partners-hero{min-height:0}}

/* Les identités des partenaires conservent leurs couleurs et proportions. */
.partner-logo{display:flex;align-items:center;justify-content:center;gap:1.8rem;background:transparent;min-height:140px;height:140px;margin:1.5rem 0 .3rem;padding:1.2rem;overflow:hidden}
.partner-logo img{display:block;width:auto;height:auto;max-width:min(100%,300px);max-height:102px;object-fit:contain}
.partner-logo--pair img:first-child{max-width:105px;max-height:87px}.partner-logo--pair img:last-child{max-width:250px;width:min(65%,250px)}

@media(max-width:720px){.partner-logo{height:125px;min-height:125px;padding:1rem}.partner-logo--pair{gap:.8rem}.partner-logo--pair img:first-child{max-width:80px}.partner-logo--pair img:last-child{max-width:170px}}

/* Les blancs des logos se fondent dans le papier sans redessiner les marques. */
.partner-logo img{mix-blend-mode:multiply}
/* Réserver un espace à l’objet complet : aucune partie hors du cadre. */
.complete-object-hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(280px,42%);column-gap:3rem;align-content:center;align-items:start}
.complete-object-hero>.eyebrow,.complete-object-hero>h1,.complete-object-hero>p{grid-column:1}
.complete-object-hero>.hero-object{position:static;grid-column:2;grid-row:1/span 3;align-self:center;justify-self:center;width:100%;height:auto;max-height:520px;object-fit:contain;opacity:.84;margin:0}
@media(max-width:980px){.complete-object-hero{grid-template-columns:1fr;gap:1.5rem;padding-bottom:3rem}.complete-object-hero>.hero-object{grid-column:1;grid-row:auto;width:min(100%,420px);height:auto;max-height:340px;opacity:.84}.complete-object-hero>h1{margin-bottom:0}.complete-object-hero>p{margin-top:0}}