@font-face{font-family:Archivo;src:url("fonts/archivo-latin.woff2") format("woff2");font-display:swap;font-style:normal;font-weight:400 700}
@font-face{font-family:"IBM Plex Sans";src:url("fonts/ibm-plex-sans-latin.woff2") format("woff2");font-display:swap;font-style:normal;font-weight:400 600}
@font-face{font-family:"IBM Plex Mono";src:url("fonts/ibm-plex-mono-400-latin.woff2") format("woff2");font-display:swap;font-style:normal;font-weight:400}
@font-face{font-family:"IBM Plex Mono";src:url("fonts/ibm-plex-mono-500-latin.woff2") format("woff2");font-display:swap;font-style:normal;font-weight:500}
:root{--an-color-background:#f3f0e8;--an-color-surface:#fffdfc;--an-color-nav:#0a132b;--an-color-ink:#172033;--an-color-ink-muted:#5a5445;--an-color-accent:#a86f16;--an-color-accent-text:#684006;--an-color-border-strong:#9c9179;--an-color-border:#ddd6c6;--an-color-caution:#85500f;--ivory:var(--an-color-background);--paper:var(--an-color-surface);--navy:var(--an-color-nav);--ink:var(--an-color-ink);--secondary:var(--an-color-ink-muted);--bronze:var(--an-color-accent);--bronze-text:var(--an-color-accent-text);--line:var(--an-color-border-strong);--warm-line:var(--an-color-border);--uncertain:var(--an-color-caution)}
*{box-sizing:border-box;font-synthesis:none}
html{scroll-behavior:smooth;background:var(--ivory);color:var(--ink);text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
body{margin:0;background:var(--ivory);color:var(--ink);font:400 15px/1.62 "IBM Plex Sans",Arial,sans-serif}
a,button{color:inherit}a:focus-visible,button:focus-visible{outline:2px solid #285d86;outline-offset:2px}
.skip-link{position:fixed;z-index:20;top:10px;left:10px;min-height:44px;transform:translateY(-180%);padding:11px 15px;border:1px solid var(--line);background:var(--paper);color:var(--ink);font-weight:600;text-decoration:none}.skip-link:focus{display:inline-flex;align-items:center;transform:none}
.site-header{position:relative;z-index:3;display:flex;align-items:center;justify-content:space-between;gap:30px;min-height:98px;padding:21px clamp(22px,5vw,76px);border-bottom:1px solid var(--warm-line);background:rgba(243,240,232,.96)}
.brand{display:flex;align-items:center;gap:18px;min-height:44px;text-decoration:none}.brand>svg{width:44px;height:44px}.brand-copy{display:grid;gap:5px}.wordmark{font:500 29px/1 Archivo,sans-serif;letter-spacing:-.02em}.wordmark b{font-weight:600}.wordmark i{color:var(--bronze);font-style:normal;font-weight:500}.wordmark em{color:var(--secondary);font-style:normal;font-weight:500}.baseline{color:var(--bronze-text);font:500 12px/1 "IBM Plex Mono";letter-spacing:.18em;text-transform:uppercase}
.site-header nav{display:flex;align-items:center;gap:30px}.site-header nav>a{min-height:44px;display:inline-flex;align-items:center;font-weight:500;text-decoration:none}.site-header nav>a:hover{text-decoration:underline;text-decoration-color:var(--bronze);text-underline-offset:6px}.language{display:flex;align-items:center;gap:6px;color:var(--secondary);font:500 14px/1 "IBM Plex Mono"}.language button{min-width:44px;min-height:44px;padding:7px 4px;border:0;background:transparent;font:inherit;cursor:pointer}.language button.is-active{color:var(--bronze-text);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:5px}
.hero{display:grid;grid-template-columns:minmax(0,.92fr) minmax(480px,1.08fr);align-items:center;gap:clamp(45px,6vw,96px);min-height:calc(100vh - 98px);max-width:1500px;margin:0 auto;padding:clamp(58px,8vw,118px) clamp(22px,5vw,76px)}
.hero-copy{min-width:0;max-width:650px}.eyebrow{margin:0;color:var(--bronze-text);font:500 12px/1.35 "IBM Plex Mono";letter-spacing:.13em;text-transform:uppercase}.hero h1{max-width:100%;margin:20px 0 24px;font:600 clamp(42px,5vw,74px)/1.02 Archivo,sans-serif;letter-spacing:-.04em;overflow-wrap:break-word}.hero-intro{max-width:600px;margin:0 0 22px;color:var(--secondary);font-size:17px;line-height:1.62}.referral-note{display:flex;align-items:center;gap:13px;margin:0 0 22px}.referral-note span{display:block;width:48px;height:2px;background:var(--bronze)}.referral-note p{margin:0;color:var(--bronze-text);font:500 12px/1.45 "IBM Plex Mono";letter-spacing:.03em}.contact-link{min-height:44px;display:inline-flex;align-items:center;gap:13px;padding:10px 0;border-bottom:2px solid var(--bronze);border-radius:0;font-weight:600;text-decoration:none}
.contact-link b{font-size:20px;font-weight:400;transition:transform .2s ease}.contact-link:hover b{transform:translateX(5px)}
.threshold-visual{display:flex;align-items:center;justify-content:center;min-width:0;padding:clamp(26px,4vw,70px)}.threshold-visual svg{display:block;width:min(100%,330px);height:auto;overflow:visible}.seal-outer,.seal-inner{stroke-dasharray:400;stroke-dashoffset:400;animation:draw 1.05s ease .18s forwards}.assay-line{transform:translateX(-18px);opacity:0;animation:assay .7s cubic-bezier(.18,.75,.16,1) .62s forwards}
@keyframes draw{to{stroke-dashoffset:0}}@keyframes assay{0%{opacity:0;transform:translateX(-18px)}20%{opacity:1}100%{opacity:1;transform:translateX(0)}}
.sequence{display:grid;grid-template-columns:repeat(3,1fr);max-width:1500px;margin:0 auto;padding:0 clamp(22px,5vw,76px) clamp(86px,10vw,150px)}.sequence article{min-height:290px;padding:30px clamp(22px,3vw,44px);border-top:3px solid var(--bronze);border-bottom:1px solid var(--line);background:var(--paper)}.sequence article+article{border-left:1px solid var(--line)}.number{margin:0 0 44px;color:var(--bronze-text);font:500 12px/1 "IBM Plex Mono";letter-spacing:.12em}.sequence h2{margin:0 0 16px;font:600 24px/1.2 Archivo}.sequence article>p:last-child{margin:0;color:var(--secondary)}
.editorial{display:grid;grid-template-columns:minmax(300px,.75fr) minmax(480px,1.25fr);gap:clamp(60px,9vw,150px);max-width:1350px;margin:0 auto;padding:clamp(85px,10vw,150px) clamp(22px,5vw,76px);border-top:1px solid var(--warm-line)}.editorial-heading h2{margin:18px 0 0;font:600 33px/1.08 Archivo;letter-spacing:-.035em}.principle-list article{display:grid;grid-template-columns:22px 1fr;gap:18px;padding:22px 0;border-top:1px solid var(--line)}.principle-list article:last-child{border-bottom:1px solid var(--line)}.principle-list article>span{width:13px;height:13px;margin-top:6px;border:2px solid var(--ink);border-radius:50%}.principle-list h3{margin:0 0 7px;font:600 17px/1.25 Archivo}.principle-list p{margin:0;color:var(--secondary)}
.closing{scroll-margin-top:24px;max-width:1250px;margin:0 auto clamp(75px,8vw,130px);padding:clamp(56px,7vw,92px);border:1px solid var(--line);border-left:4px solid var(--bronze);background:var(--paper)}.closing h2{max-width:900px;margin:18px 0 20px;font:600 33px/1.06 Archivo;letter-spacing:-.035em}.closing>p:not(.eyebrow){max-width:750px;margin:0 0 25px;color:var(--secondary);font-size:17px}.contact-panel{max-width:760px;margin-top:30px;padding:26px;border:1px solid var(--warm-line);background:var(--ivory)}.contact-instruction{max-width:62ch;margin:0 0 16px;color:var(--ink);font-size:17px;font-weight:500;line-height:1.7}.contact-address{display:inline-flex;max-width:100%;padding:10px 14px;border:1px solid var(--line);background:var(--paper);user-select:none}.contact-address img{display:block;width:min(100%,480px);height:auto;pointer-events:none}.contact-hint{margin:12px 0 0;color:var(--secondary);font-size:14px;line-height:1.5}
footer{display:grid;grid-template-columns:1fr auto;align-items:end;gap:35px;padding:38px clamp(22px,5vw,76px);background:var(--navy);color:var(--paper)}footer .wordmark{display:block;font-size:22px}footer .wordmark em{color:#d7dbe3}footer .wordmark i{color:#c89a3e}.footer-brand>span:last-child{display:block;margin-top:7px;color:#c89a3e;font:500 12px/1 "IBM Plex Mono";letter-spacing:.13em;text-transform:uppercase}footer p{margin:0;color:#c9cdd6;font-size:13px}
@media(max-width:1020px){.site-header nav>a:not(:last-of-type){display:none}.hero{grid-template-columns:minmax(0,1fr);min-height:auto}.hero-copy{max-width:800px}.threshold-visual{max-width:680px;margin:0 auto}.sequence{grid-template-columns:1fr}.sequence article{min-height:0}.sequence article+article{border-left:0}.editorial{grid-template-columns:1fr}.editorial-heading{max-width:700px}}
@media(max-width:700px){.site-header{min-height:82px;padding:16px 20px}.brand{gap:12px}.brand>svg{width:34px;height:34px}.wordmark{font-size:20px}.baseline{display:block;font-size:12px;line-height:1.35;letter-spacing:.1em}.site-header nav{gap:16px}.site-header nav>a{display:none!important}.hero{padding-top:58px;gap:32px}.hero h1{font-size:33px;letter-spacing:-.035em}.threshold-visual{max-width:250px}.sequence{padding-bottom:80px}.sequence article{padding:25px 22px}.number{margin-bottom:26px}.editorial{padding-block:74px}.closing{margin-inline:18px;padding:42px 24px}.closing h2{font-size:33px}.contact-panel{padding:22px 18px}.contact-address{padding:8px 10px}footer{grid-template-columns:1fr;align-items:start;gap:20px}}
@media(max-width:370px){.referral-note{align-items:flex-start}.referral-note span{margin-top:8px;flex:0 0 36px}.site-header{gap:12px}.language{gap:2px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}.assay-line{opacity:1;transform:none}.seal-outer,.seal-inner{stroke-dashoffset:0}}
footer a{color:var(--paper);font-weight:600;text-underline-offset:3px}
/* 24/09/2026 : logo agrandi (charte V42 inchangée : encre #172033, bronze #A86F16, gris #5A5445) ; mention de cooptation discrète en pied. */
.site-header .brand>svg{width:60px;height:60px}
.site-header .wordmark{font-size:36px}
.hero .contact-panel{margin-top:34px;max-width:420px}
.hero .contact-instruction{margin:0 0 10px;color:var(--secondary);font:500 12px/1 "IBM Plex Mono";letter-spacing:.18em;text-transform:uppercase}
footer .cooptation{margin:0 0 10px;color:#c9cdd6;font:500 12px/1.4 "IBM Plex Mono";letter-spacing:.16em;text-transform:uppercase;opacity:.8}
@media (max-width:760px){.site-header .brand>svg{width:44px;height:44px}.site-header .wordmark{font-size:26px}}