/* =====================================================================
   ALTORIS DIGITAL — design system « Quai Noir »
   Nuit du Léman, ivoire, cuivre de grand livre, courbes de niveau.
   Deux surfaces : claire (ivoire) et sombre (.dark). L'accent bascule
   automatiquement : bronze lisible sur clair, cuivre sur sombre.
   ===================================================================== */

/* ---------- Polices auto-hébergées (latin / latin-ext) ---------- */
@font-face{font-family:'Hanken Grotesk';font-style:normal;font-weight:400;font-display:swap;src:url(fonts/hankengrotesk-normal-400-latin-ext.woff2) format('woff2');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:'Hanken Grotesk';font-style:normal;font-weight:400;font-display:swap;src:url(fonts/hankengrotesk-normal-400-latin.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'Hanken Grotesk';font-style:normal;font-weight:500;font-display:swap;src:url(fonts/hankengrotesk-normal-400-latin-ext.woff2) format('woff2');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:'Hanken Grotesk';font-style:normal;font-weight:500;font-display:swap;src:url(fonts/hankengrotesk-normal-400-latin.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'Hanken Grotesk';font-style:normal;font-weight:600;font-display:swap;src:url(fonts/hankengrotesk-normal-400-latin-ext.woff2) format('woff2');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:'Hanken Grotesk';font-style:normal;font-weight:600;font-display:swap;src:url(fonts/hankengrotesk-normal-400-latin.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'IBM Plex Mono';font-style:normal;font-weight:400;font-display:swap;src:url(fonts/ibmplexmono-normal-400-latin-ext.woff2) format('woff2');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:'IBM Plex Mono';font-style:normal;font-weight:400;font-display:swap;src:url(fonts/ibmplexmono-normal-400-latin.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'IBM Plex Mono';font-style:normal;font-weight:500;font-display:swap;src:url(fonts/ibmplexmono-normal-500-latin-ext.woff2) format('woff2');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:'IBM Plex Mono';font-style:normal;font-weight:500;font-display:swap;src:url(fonts/ibmplexmono-normal-500-latin.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'Newsreader';font-style:italic;font-weight:400;font-display:swap;src:url(fonts/newsreader-italic-400-latin-ext.woff2) format('woff2');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:'Newsreader';font-style:italic;font-weight:400;font-display:swap;src:url(fonts/newsreader-italic-400-latin.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'Newsreader';font-style:normal;font-weight:400;font-display:swap;src:url(fonts/newsreader-normal-400-latin-ext.woff2) format('woff2');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:'Newsreader';font-style:normal;font-weight:400;font-display:swap;src:url(fonts/newsreader-normal-400-latin.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'Newsreader';font-style:normal;font-weight:500;font-display:swap;src:url(fonts/newsreader-normal-400-latin-ext.woff2) format('woff2');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:'Newsreader';font-style:normal;font-weight:500;font-display:swap;src:url(fonts/newsreader-normal-400-latin.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}

/* ---------- Jetons ---------- */
:root{
  --night:#0A0C10;
  --night-2:#10141A;
  --night-3:#171C24;
  --bone:#EBE4D4;
  --bone-2:#E3DBC9;
  --bone-3:#D6CCB5;
  --copper:#C9A36A;
  --copper-2:#E0C08A;
  --bronze:#7F5F32;

  /* Surface claire (défaut) */
  --bg:var(--bone);
  --fg:var(--night);
  --fg-soft:#4F4A41;
  --fg-mute:#655D4E;
  --acc:var(--bronze);
  --hair:rgba(10,12,16,.16);
  --hair-2:rgba(10,12,16,.34);
  --card:var(--bone-2);

  --serif:"Newsreader",Georgia,"Times New Roman",serif;
  --sans:"Hanken Grotesk",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,Menlo,Consolas,monospace;

  --wrap:1240px;
  --gutter:clamp(20px,4.2vw,56px);
  --sec:clamp(72px,9vw,128px);
  --ease:cubic-bezier(.22,.72,.18,1);
  --head-h:78px;
}
/* Surface sombre : mêmes rôles, valeurs inversées */
.dark{
  --bg:var(--night);
  --fg:var(--bone);
  --fg-soft:rgba(235,228,212,.74);
  --fg-mute:rgba(235,228,212,.58);
  --acc:var(--copper);
  --hair:rgba(235,228,212,.14);
  --hair-2:rgba(235,228,212,.3);
  --card:rgba(235,228,212,.045);
  background:var(--bg);color:var(--fg);position:relative;isolation:isolate;
}

/* ---------- Base ---------- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  background:var(--bg);color:var(--fg);
  font-family:var(--sans);font-size:17px;line-height:1.62;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility;font-synthesis:none;
  min-height:100vh;display:flex;flex-direction:column;overflow-x:hidden;
}
main{flex:1 0 auto}
[id]{scroll-margin-top:calc(var(--head-h) + 28px)}
::selection{background:var(--copper);color:var(--night)}
img,svg{display:block;max-width:100%}
a{color:inherit}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
strong{font-weight:600;color:var(--fg)}
address{font-style:normal}
:focus-visible{outline:2px solid var(--copper);outline-offset:3px}

/* Grain papier très léger */
body::before{
  content:"";position:fixed;inset:0;z-index:8000;pointer-events:none;opacity:.05;mix-blend-mode:multiply;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='220' height='220'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix type='saturate' values='0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding-left:var(--gutter);padding-right:var(--gutter)}
.nw{white-space:nowrap}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* Révélation au défilement — uniquement si JS actif */
.js .rv{opacity:0;transform:translateY(18px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.js .rv.on{opacity:1;transform:none}
.js [data-stagger]>*{opacity:0;transform:translateY(14px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.js [data-stagger].on>*{opacity:1;transform:none}
.js [data-stagger].on>*:nth-child(2){transition-delay:.08s}
.js [data-stagger].on>*:nth-child(3){transition-delay:.16s}
.js [data-stagger].on>*:nth-child(4){transition-delay:.24s}
.js [data-stagger].on>*:nth-child(5){transition-delay:.32s}
@media(prefers-reduced-motion:reduce){.js .rv,.js [data-stagger]>*{opacity:1;transform:none;transition:none}}

/* ---------- Typographie ---------- */
h1,h2,h3{font-family:var(--serif);font-weight:400;color:var(--fg);text-wrap:balance}
h1{font-size:clamp(42px,6.8vw,96px);line-height:.98;letter-spacing:-.028em}
h2{font-size:clamp(30px,3.9vw,54px);line-height:1.05;letter-spacing:-.02em;max-width:24ch}
h3{font-size:clamp(22px,2vw,27px);line-height:1.2;letter-spacing:-.012em}
h1 em,h2 em,h3 em{font-style:italic;color:var(--acc);font-weight:400}
p{color:var(--fg-soft)}
.lead{font-size:clamp(18px,1.4vw,21px);line-height:1.55;max-width:54ch}
.prose p{margin-bottom:1.3em;max-width:64ch}
.prose p:last-child{margin-bottom:0}

.kicker,.secnum{font-family:var(--mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--acc);display:flex;align-items:center;gap:14px}
.kicker::before,.secnum::before{content:"";width:28px;height:1px;background:currentColor;opacity:.8;flex:0 0 auto}
.secnum{margin-bottom:28px}
.label{font-family:var(--mono);font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--fg-mute)}

/* Lien fléché */
.more{display:inline-flex;align-items:center;gap:12px;font-family:var(--mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--fg);text-decoration:none;position:relative;padding-bottom:6px}
.more::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:currentColor;transition:transform .5s var(--ease);transform-origin:left}
.more:hover::after{transform:scaleX(0);transform-origin:right}
.more .arr{transition:transform .4s var(--ease)}
.more:hover .arr{transform:translateX(5px)}

/* Boutons */
.btn{display:inline-flex;align-items:center;gap:14px;font-family:var(--mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;text-decoration:none;padding:17px 24px;border:1px solid var(--copper);background:var(--copper);color:var(--night);transition:background .35s var(--ease),color .35s var(--ease),border-color .35s var(--ease)}
.btn:hover{background:var(--copper-2);border-color:var(--copper-2)}
.btn .arr{transition:transform .4s var(--ease)}
.btn:hover .arr{transform:translateX(5px)}
.btn-ghost{background:transparent;color:var(--fg);border-color:var(--hair-2)}
.btn-ghost:hover{background:var(--fg);color:var(--bg);border-color:var(--fg)}

.arr{width:14px;height:14px;flex:0 0 auto}
.arr path{stroke:currentColor;stroke-width:1.5;fill:none;stroke-linecap:round;stroke-linejoin:round}

/* Étiquette ronde */
.tag{display:inline-flex;align-items:center;gap:10px;font-family:var(--mono);font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;border:1px solid var(--hair-2);padding:9px 15px;border-radius:999px;color:var(--fg)}
.tag .dot{width:6px;height:6px;border-radius:50%;background:var(--copper);flex:0 0 auto}

/* Courbes de niveau */
.topo{position:absolute;inset:0;pointer-events:none;z-index:-1;background-repeat:no-repeat;background-size:cover;background-position:center;opacity:.16}
.topo-copper{background-image:url(assets/contours-copper.svg)}
.topo-bone{background-image:url(assets/contours-bone.svg);opacity:.09}
.topo.fade-r{-webkit-mask-image:linear-gradient(270deg,transparent 0%,#000 60%);mask-image:linear-gradient(270deg,transparent 0%,#000 60%)}
.topo.fade-b{-webkit-mask-image:linear-gradient(180deg,#000 30%,transparent 100%);mask-image:linear-gradient(180deg,#000 30%,transparent 100%)}
.topo.fade-rad{-webkit-mask-image:radial-gradient(ellipse 75% 90% at 78% 30%,#000 25%,transparent 100%);mask-image:radial-gradient(ellipse 75% 90% at 78% 30%,#000 25%,transparent 100%)}

/* ---------- En-tête ---------- */
.progress{position:fixed;top:0;left:0;height:2px;width:100%;z-index:120;pointer-events:none}
.progress i{display:block;height:100%;width:100%;background:var(--copper);transform:scaleX(0);transform-origin:left}

.site-head{position:sticky;top:0;z-index:100;background:rgba(10,12,16,.9);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);color:var(--bone)}
.site-head::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:rgba(235,228,212,.12)}
.nav{display:flex;align-items:center;justify-content:space-between;height:var(--head-h);gap:24px}
.brand{display:inline-flex;align-items:center;gap:14px;text-decoration:none;color:var(--bone)}
.brand .mark{width:34px;height:34px;flex:0 0 auto}
.brand .mark path{stroke:currentColor;stroke-width:2.2;fill:none;stroke-linecap:round;stroke-linejoin:round}
.brand .mark .horizon{stroke:var(--copper);stroke-width:1.8}
.brand .name{display:flex;flex-direction:column;line-height:1}
.brand .name b{font-family:var(--serif);font-weight:500;font-size:23px;letter-spacing:-.018em;color:var(--bone)}
.brand .name small{font-family:var(--mono);font-size:8.5px;letter-spacing:.34em;text-transform:uppercase;color:var(--copper);margin-top:5px}

.navlinks{display:flex;align-items:center;gap:32px}
.navlinks a{position:relative;text-decoration:none;color:var(--bone);font-size:14.5px;opacity:.72;transition:opacity .3s;padding:6px 0}
.navlinks a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--copper);transform:scaleX(0);transform-origin:right;transition:transform .45s var(--ease)}
.navlinks a:hover,.navlinks a[aria-current="page"]{opacity:1}
.navlinks a:hover::after,.navlinks a[aria-current="page"]::after{transform:scaleX(1);transform-origin:left}

.nav-right{display:flex;align-items:center;gap:20px}
.status{display:inline-flex;align-items:center;gap:9px;font-family:var(--mono);font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:var(--bone);border:1px solid rgba(235,228,212,.22);padding:8px 13px;border-radius:999px;white-space:nowrap}
.status .dot{width:6px;height:6px;border-radius:50%;background:var(--copper);animation:pulse 2.6s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(201,163,106,.5)}70%{box-shadow:0 0 0 8px rgba(201,163,106,0)}100%{box-shadow:0 0 0 0 rgba(201,163,106,0)}}
@media(prefers-reduced-motion:reduce){.status .dot{animation:none}}
.langswitch{display:inline-flex;align-items:center;gap:2px;font-family:var(--mono);font-size:11px;letter-spacing:.12em}
.langswitch button{padding:4px 6px;color:rgba(235,228,212,.62);transition:color .3s}
.langswitch button:hover{color:var(--bone)}
.langswitch button.active{color:var(--bone);text-decoration:underline;text-underline-offset:4px;text-decoration-color:var(--copper)}
.langswitch span{color:rgba(235,228,212,.25)}

.burger{display:none;width:44px;height:44px;position:relative;margin-right:-8px}
.burger span{position:absolute;left:11px;right:11px;height:1.5px;background:var(--bone);transition:transform .45s var(--ease)}
.burger span:nth-child(1){top:17px}.burger span:nth-child(2){top:26px}
body.menu-open .burger span:nth-child(1){transform:translateY(4.5px) rotate(45deg)}
body.menu-open .burger span:nth-child(2){transform:translateY(-4.5px) rotate(-45deg)}

/* Menu mobile plein écran */
.menu{position:fixed;inset:0;z-index:90;background:var(--night);color:var(--bone);display:flex;flex-direction:column;justify-content:flex-end;padding:calc(var(--head-h) + 24px) var(--gutter) 40px;clip-path:inset(0 0 100% 0);transition:clip-path .7s var(--ease),visibility 0s .7s;visibility:hidden;isolation:isolate}
body.menu-open .menu{clip-path:inset(0 0 0 0);visibility:visible;transition:clip-path .7s var(--ease)}
body.menu-open{overflow:hidden}
.menu-links{list-style:none;display:flex;flex-direction:column;gap:6px;margin-bottom:auto;margin-top:6vh}
.menu-links a{display:flex;align-items:baseline;gap:18px;text-decoration:none;color:var(--bone);font-family:var(--serif);font-size:clamp(34px,9vw,56px);letter-spacing:-.02em;padding:6px 0;opacity:0;transform:translateY(20px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
body.menu-open .menu-links a{opacity:1;transform:none}
body.menu-open .menu-links li:nth-child(2) a{transition-delay:.06s}
body.menu-open .menu-links li:nth-child(3) a{transition-delay:.12s}
body.menu-open .menu-links li:nth-child(4) a{transition-delay:.18s}
body.menu-open .menu-links li:nth-child(5) a{transition-delay:.24s}
.menu-links a small{font-family:var(--mono);font-size:11px;letter-spacing:.2em;color:var(--copper)}
.menu-links a[aria-current="page"] span{color:var(--copper)}
.menu-foot{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px;border-top:1px solid rgba(235,228,212,.14);padding-top:22px;font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:rgba(235,228,212,.62)}

@media(max-width:940px){
  .navlinks{display:none}
  .burger{display:block}
  .nav-right .langswitch{display:none}
}
@media(max-width:560px){
  .status{display:none}
  .brand .name b{font-size:21px}
}

/* ---------- Pied de page ---------- */
.site-foot{background:#07090C;color:var(--bone);position:relative;overflow:hidden;isolation:isolate;margin-top:auto}
.site-foot .topo{opacity:.08}
.foot-top{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:40px;padding:clamp(56px,7vw,92px) 0 48px;border-bottom:1px solid rgba(235,228,212,.12)}
.foot-brand p{margin-top:22px;max-width:34ch;color:rgba(235,228,212,.6);font-size:15px;line-height:1.6}
.foot-col h4{font-family:var(--mono);font-size:10.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--copper);margin-bottom:20px;font-weight:500}
.foot-col ul{list-style:none;display:flex;flex-direction:column;gap:11px}
.foot-col a{color:var(--bone);text-decoration:none;font-size:15px;opacity:.82;transition:opacity .3s}
.foot-col a:hover{opacity:1}
.foot-col address{color:rgba(235,228,212,.82);font-size:15px;line-height:1.6}
.foot-col .coords{display:block;margin-top:14px;font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;color:rgba(235,228,212,.58)}
.foot-bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px;padding:26px 0 0;font-family:var(--mono);font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:rgba(235,228,212,.6)}
.foot-bottom a{color:rgba(235,228,212,.78);text-decoration:none;border-bottom:1px solid rgba(235,228,212,.22);padding-bottom:2px;transition:color .3s,border-color .3s}
.foot-bottom a:hover{color:var(--bone);border-color:var(--bone)}
.watermark{font-family:var(--serif);font-size:clamp(110px,19vw,270px);line-height:.74;letter-spacing:-.03em;color:transparent;-webkit-text-stroke:1px rgba(235,228,212,.11);white-space:nowrap;user-select:none;pointer-events:none;margin-top:40px;transform:translateY(22%)}
@media(max-width:900px){.foot-top{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.foot-top{grid-template-columns:1fr;gap:32px}.foot-bottom{flex-direction:column;align-items:flex-start}}

/* ---------- Composants ---------- */
/* Fiche d'identité (toujours sombre, sur fond clair ou sombre) */
.fiche{--acc:var(--copper);background:var(--night);color:var(--bone);border:1px solid rgba(235,228,212,.14);border-top:2px solid var(--copper)}
.fiche-head{display:flex;justify-content:space-between;gap:12px;padding:14px 22px;border-bottom:1px solid rgba(235,228,212,.12);font-family:var(--mono);font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:rgba(235,228,212,.6)}
.fiche-head b{color:var(--copper);font-weight:500}
.fiche dl>div{display:grid;grid-template-columns:104px 1fr;gap:16px;padding:16px 22px;border-bottom:1px solid rgba(235,228,212,.1)}
.fiche dl>div:last-child{border-bottom:0}
.fiche dt{font-family:var(--mono);font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:rgba(235,228,212,.6);padding-top:5px}
.fiche dd{font-family:var(--serif);font-size:19px;color:var(--bone);line-height:1.3}
@media(max-width:420px){.fiche dl>div{grid-template-columns:1fr;gap:6px}}

/* Sceau */
.seal{width:150px;height:150px;color:var(--fg)}
.seal text{font-family:var(--mono);font-size:7.8px;letter-spacing:.14em;text-transform:uppercase;fill:currentColor}
.seal circle{fill:none;stroke:currentColor;stroke-width:1}
.seal .ridge{fill:none;stroke:currentColor;stroke-width:1.6;stroke-linejoin:round;stroke-linecap:round}
.seal .horizon{stroke:var(--copper)}
.seal.spin{animation:spin 48s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
@media(prefers-reduced-motion:reduce){.seal.spin{animation:none}}

/* Registre (liste indexée) */
.ledger{border-top:1px solid var(--hair)}
.ledger-row{display:grid;grid-template-columns:72px 1.05fr 1.4fr 28px;gap:28px;align-items:start;padding:34px 0;border-bottom:1px solid var(--hair);text-decoration:none;color:inherit;position:relative}
a.ledger-row::before{content:"";position:absolute;inset:0 calc(var(--gutter) * -.5);background:var(--card);opacity:0;transition:opacity .4s var(--ease);z-index:-1}
a.ledger-row:hover::before{opacity:1}
.ledger-row .idx{font-family:var(--serif);font-size:30px;line-height:1;color:var(--acc);font-variant-numeric:tabular-nums;padding-top:2px}
.ledger-row small{display:block;font-family:var(--mono);font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--fg-mute);margin-bottom:10px}
.ledger-row h3{font-weight:400;font-size:clamp(22px,2.2vw,30px)}
.ledger-row p{font-size:15.5px;line-height:1.6;max-width:52ch}
.ledger-row .arr{margin-top:8px;opacity:.45;transition:transform .4s var(--ease),opacity .4s}
.ledger-row:hover .arr{transform:translateX(6px);opacity:1}
@media(max-width:820px){.ledger-row{grid-template-columns:48px 1fr;gap:16px;padding:28px 0}.ledger-row p{grid-column:2}.ledger-row .arr{display:none}.ledger-row .idx{font-size:24px}}

/* Canaux de contact */
.channels{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}
.channel{position:relative;display:flex;flex-direction:column;justify-content:space-between;min-height:190px;padding:24px 26px;border:1px solid var(--hair);background:var(--card);text-decoration:none;color:var(--fg);transition:background .4s var(--ease),color .4s var(--ease),border-color .4s var(--ease)}
.channel small{font-family:var(--mono);font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--fg-mute);transition:color .4s}
.channel span{font-family:var(--serif);font-size:clamp(20px,1.8vw,26px);line-height:1.25;margin-top:36px;word-break:break-word;padding-right:28px}
.channel .arr{position:absolute;right:24px;bottom:28px;width:18px;height:18px;transition:transform .4s var(--ease)}
.channel:hover{background:var(--night);color:var(--bone);border-color:var(--night)}
.channel:hover small{color:var(--copper)}
.channel:hover .arr{transform:translate(4px,-4px)}
.dark .channel:hover{background:var(--bone);color:var(--night);border-color:var(--bone)}
.dark .channel:hover small{color:var(--bronze)}
@media(max-width:820px){.channels{grid-template-columns:1fr}.channel{min-height:0}.channel span{margin-top:16px}}

/* En-tête de page intérieure */
.pagehead{padding:clamp(80px,10vw,136px) 0 clamp(52px,6vw,84px);overflow:hidden}
.pagehead .kicker{margin-bottom:30px}
.pagehead h1{max-width:16ch}
.pagehead .meta{display:flex;flex-wrap:wrap;gap:14px 32px;margin-top:40px;font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--fg-mute)}
.pagehead .meta b{color:var(--fg);font-weight:500}
.pagehead-grid{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.6fr);gap:48px;align-items:end}
.pagehead-grid .lead{margin-bottom:8px}
.pagehead-aside{border-left:1px solid var(--hair);padding-left:28px;margin-bottom:8px}
.pagehead-aside .label{display:block;margin-bottom:14px;color:var(--acc)}
.pagehead-aside p{font-size:16px;max-width:38ch}
@media(max-width:900px){.pagehead-grid{grid-template-columns:1fr;gap:32px}.pagehead-aside{border-left:0;padding-left:0}}

/* Sommaire collant */
.toc{position:sticky;top:calc(var(--head-h) + 40px);align-self:start}
.toc ol{list-style:none;display:flex;flex-direction:column;border-left:1px solid var(--hair)}
.toc a{display:flex;align-items:baseline;gap:14px;padding:10px 0 10px 22px;text-decoration:none;color:var(--fg-soft);font-size:15px;position:relative;transition:color .3s}
.toc a::before{content:"";position:absolute;left:-1px;top:0;bottom:0;width:1px;background:var(--acc);transform:scaleY(0);transition:transform .4s var(--ease)}
.toc a small{font-family:var(--mono);font-size:10px;letter-spacing:.16em;color:var(--fg-mute)}
.toc a:hover,.toc a.active{color:var(--fg)}
.toc a.active::before{transform:scaleY(1)}
@media(max-width:900px){
  .toc{position:static;margin-bottom:40px}
  .toc ol{flex-direction:row;flex-wrap:wrap;border-left:0;border-bottom:1px solid var(--hair);gap:0 24px}
  .toc a{padding:12px 0}
  .toc a::before{left:0;right:0;top:auto;bottom:-1px;height:1px;width:auto;transform:scaleX(0)}
  .toc a.active::before{transform:scaleX(1)}
}

/* Bandeau d'appel */
.cta .inner{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;flex-wrap:wrap;padding:var(--sec) 0}
.cta h2{max-width:14ch}
@media(max-width:700px){.cta .inner{align-items:flex-start}}

/* Deux colonnes */
.split{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(32px,6vw,80px);align-items:start}
.split.pad{padding:var(--sec) 0}
@media(max-width:900px){.split{grid-template-columns:1fr}}
.section{padding:var(--sec) 0}

/* Section « lire aussi » */
.next{border-top:1px solid var(--hair)}
.next-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:32px}
.next a{display:flex;flex-direction:column;gap:38px;justify-content:space-between;padding:28px 28px 26px;border:1px solid var(--hair);background:var(--card);text-decoration:none;color:var(--fg);transition:background .4s var(--ease),color .4s var(--ease),border-color .4s var(--ease)}
.next a small{font-family:var(--mono);font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--fg-mute);transition:color .4s}
.next a b{font-family:var(--serif);font-weight:400;font-size:clamp(22px,2vw,28px);line-height:1.2;display:flex;justify-content:space-between;align-items:center;gap:16px}
.next a:hover{background:var(--night);color:var(--bone);border-color:var(--night)}
.next a:hover small,.next a:hover em{color:var(--copper)}
@media(max-width:700px){.next-grid{grid-template-columns:1fr}}

/* ---------- Accueil ---------- */
.hero{min-height:clamp(620px,calc(100dvh - var(--head-h)),880px);display:flex;flex-direction:column;justify-content:flex-end;padding-top:56px}
.hero-top{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(220px,.5fr);gap:48px;align-items:end;padding-bottom:56px}
.hero .lead{margin:28px 0 36px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-side{display:flex;flex-direction:column;align-items:flex-end;gap:28px}
.hero-year{font-family:var(--serif);font-size:clamp(72px,10vw,140px);line-height:.8;letter-spacing:-.04em;color:transparent;-webkit-text-stroke:1px rgba(201,163,106,.5)}
.statbar{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--hair)}
.statbar div{padding:22px 20px 28px;border-right:1px solid var(--hair)}
.statbar div:first-child{padding-left:0}
.statbar div:last-child{border-right:0}
.statbar span{display:block;font-family:var(--mono);font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:var(--fg-mute);margin-bottom:8px}
.statbar strong{display:block;font-family:var(--serif);font-size:18px;font-weight:400;color:var(--fg)}
@media(max-width:900px){
  .hero-top{grid-template-columns:1fr}
  .hero-side{flex-direction:row;align-items:center;justify-content:space-between;width:100%}
  .hero-side .seal{width:110px;height:110px}
  .statbar{grid-template-columns:1fr 1fr}
  .statbar div:nth-child(2){border-right:0}
  .statbar div:nth-child(3){padding-left:0}
}
@media(max-width:560px){
  .hero{padding-top:36px;min-height:0}
  .hero-side{display:none}
  .statbar{grid-template-columns:1fr}
  .statbar div{border-right:0;border-bottom:1px solid var(--hair);padding-left:0}
  .statbar div:last-child{border-bottom:0}
}

.metrics-band{padding:0}
.metrics{display:grid;grid-template-columns:repeat(3,1fr)}
.metrics div{padding:clamp(40px,5vw,64px) 28px;border-right:1px solid var(--hair)}
.metrics div:first-child{padding-left:0}
.metrics div:last-child{border-right:0}
.metrics b{display:block;font-family:var(--serif);font-weight:400;font-size:clamp(40px,4.6vw,62px);color:var(--fg);letter-spacing:-.03em;line-height:1}
.metrics span{display:block;margin-top:14px;font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--fg-mute)}
.metrics small{display:block;font-family:var(--mono);font-size:10px;letter-spacing:.2em;color:var(--acc);margin-bottom:22px}
@media(max-width:820px){.metrics{grid-template-columns:1fr}.metrics div{border-right:0;border-bottom:1px solid var(--hair);padding-left:0;padding-right:0}.metrics div:last-child{border-bottom:0}}

.corridor-map{display:grid;grid-template-columns:1fr auto 1fr;gap:24px;align-items:center;margin-top:56px}
.corridor-node{border:1px solid var(--hair);padding:26px 26px 24px;background:var(--card)}
.corridor-node small{display:block;font-family:var(--mono);font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:var(--acc);margin-bottom:10px}
.corridor-node strong{font-family:var(--serif);font-size:26px;font-weight:400;color:var(--fg)}
.corridor-line{width:clamp(40px,12vw,140px);height:1px;background:repeating-linear-gradient(90deg,var(--copper) 0 8px,transparent 8px 14px);position:relative}
.corridor-line::after{content:"";position:absolute;right:-4px;top:-3px;width:7px;height:7px;border-radius:50%;background:var(--copper)}
@media(max-width:700px){
  .corridor-map{grid-template-columns:1fr;gap:12px}
  .corridor-line{width:1px;height:36px;justify-self:center;background:repeating-linear-gradient(180deg,var(--copper) 0 8px,transparent 8px 14px)}
  .corridor-line::after{right:-3px;bottom:-4px;top:auto}
}
.addr-line{margin-top:28px;font-family:var(--mono);font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--fg-mute)}

/* ---------- Société ---------- */
.story-grid{display:grid;grid-template-columns:200px minmax(0,1fr);gap:56px;align-items:start}
.story-block{padding-bottom:var(--sec)}
.story-block:last-child{padding-bottom:0}
.story-block>h2{margin-bottom:24px}
@media(max-width:900px){.story-grid{grid-template-columns:1fr;gap:0}}

/* Profil d'altitude (chronologie) */
.ridge{position:relative;width:100%;height:clamp(230px,26vw,300px);margin:48px 0 8px}
.ridge-plot{position:absolute;inset:0 0 62px 0}
.ridge svg{position:absolute;inset:0;width:100%;height:100%;overflow:visible}
.ridge path{fill:none;stroke:var(--fg);stroke-width:1.5;stroke-linejoin:round;stroke-linecap:round;vector-effect:non-scaling-stroke}
.ridge path.ghost{stroke:var(--acc);opacity:.5}
.js .ridge path.draw{stroke-dasharray:1;stroke-dashoffset:1}
.js .ridge.on path.draw{animation:draw 2.4s var(--ease) forwards}
.js .ridge.on path.draw.ghost{animation-delay:.25s}
@keyframes draw{to{stroke-dashoffset:0}}
.ridge .st{position:absolute;transform:translate(-50%,-5px);display:flex;flex-direction:column;align-items:center;gap:8px}
.js .ridge .st{opacity:0;transition:opacity .8s var(--ease)}
.js .ridge.on .st{opacity:1}
.js .ridge.on .st:nth-of-type(1){transition-delay:.6s}.js .ridge.on .st:nth-of-type(2){transition-delay:1s}.js .ridge.on .st:nth-of-type(3){transition-delay:1.4s}.js .ridge.on .st:nth-of-type(4){transition-delay:1.9s}
.ridge .st i{width:10px;height:10px;border-radius:50%;background:var(--bg);border:1.5px solid var(--fg)}
.ridge .st:last-of-type i{background:var(--copper);border-color:var(--copper)}
.ridge .st b{font-family:var(--mono);font-weight:500;font-size:11px;letter-spacing:.16em;color:var(--fg)}
.ridge .st small{font-family:var(--mono);font-size:9.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--fg-mute);white-space:nowrap}
.ridge-caption{font-family:var(--serif);font-style:italic;font-size:19px;color:var(--acc)}
@media(prefers-reduced-motion:reduce){.js .ridge path.draw{stroke-dashoffset:0;animation:none}.js .ridge .st{opacity:1;transition:none}}
@media(max-width:640px){.ridge .st small{display:none}.ridge{height:200px}.ridge-plot{inset:0 0 44px 0}}

.tl{display:grid;grid-template-columns:90px 1fr;gap:26px;padding:22px 0;border-bottom:1px solid var(--hair)}
.tl:last-child{border-bottom:0}
.tl b{font-family:var(--serif);font-weight:400;font-size:24px;color:var(--acc);line-height:1.2}
.tl p{margin:0;font-size:15.5px}
@media(max-width:480px){.tl{grid-template-columns:64px 1fr;gap:16px}}

.obj{list-style:none;border-top:1px solid var(--hair)}
.obj li{display:grid;grid-template-columns:56px 1fr;gap:20px;padding:28px 0;border-bottom:1px solid var(--hair);color:var(--fg-soft);font-size:16px;line-height:1.6}
.obj li::before{content:attr(data-n);font-family:var(--serif);font-size:28px;color:var(--acc);line-height:1.1}
.obj li strong{color:var(--fg)}

/* ---------- Manifeste ---------- */
.article{padding:clamp(56px,7vw,96px) 0}
.article-inner{max-width:720px;margin:0 auto}
.article p{font-family:var(--serif);font-size:clamp(19px,1.5vw,22px);line-height:1.6;color:var(--fg);margin-bottom:1.35em}
.article p:last-of-type{margin-bottom:0}
.article p strong{font-weight:500;color:var(--fg);text-decoration:underline;text-decoration-color:var(--acc);text-decoration-thickness:1px;text-underline-offset:5px}
.drop::first-letter{font-family:var(--serif);font-size:84px;line-height:.8;float:left;padding:10px 14px 0 0;color:var(--acc)}
.pull{padding:var(--sec) 0}
.pull blockquote{font-family:var(--serif);font-style:italic;font-size:clamp(26px,3.8vw,46px);line-height:1.25;color:var(--fg);max-width:24ch;letter-spacing:-.015em;margin:0 auto}
.pull .wrap{display:flex;flex-direction:column;align-items:center;text-align:center;gap:32px}
.pull .rule{display:block;width:44px;height:1px;background:var(--copper)}
.pull .kicker{justify-content:center}
.pull .kicker::before{display:none}
.sign{margin-top:56px;padding-top:28px;border-top:1px solid var(--hair);display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--fg-mute)}
.sign .seal{width:88px;height:88px}

/* ---------- Approche ---------- */
.flow{list-style:none;display:grid;grid-template-columns:repeat(5,1fr);margin-top:44px;border-top:1px solid var(--hair);border-bottom:1px solid var(--hair)}
.flow li{padding:28px 20px 30px 0;border-right:1px solid var(--hair);margin-right:20px}
.flow li:last-child{border-right:0;margin-right:0}
.flow b{display:block;font-family:var(--mono);font-weight:500;font-size:10.5px;letter-spacing:.18em;color:var(--acc);margin-bottom:14px}
.flow span{font-family:var(--serif);font-size:clamp(19px,1.6vw,22px);color:var(--fg);line-height:1.25;display:block}
@media(max-width:900px){.flow{grid-template-columns:1fr}.flow li{border-right:0;margin-right:0;padding:18px 0;border-bottom:1px solid var(--hair)}.flow li:last-child{border-bottom:0}}

.principles{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:48px}
.principles article{background:var(--card);border:1px solid var(--hair);padding:34px 28px 32px}
.principles small{display:block;font-family:var(--serif);font-size:28px;color:var(--acc);margin-bottom:26px;line-height:1}
.principles h3{margin-bottom:10px}
.principles p{font-size:16px}
@media(max-width:820px){.principles{grid-template-columns:1fr}}

/* ---------- Contact ---------- */
.addr-block{font-family:var(--serif);font-size:clamp(24px,2.4vw,34px);line-height:1.3;color:var(--fg)}
.addr-meta{margin-top:28px;display:flex;flex-direction:column;gap:8px;font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--fg-mute)}
.seal-box{position:relative;border:1px solid var(--hair);background:var(--card);min-height:320px;display:flex;align-items:center;justify-content:center;overflow:hidden;isolation:isolate}
.seal-box .topo{opacity:.35}
.seal-box .seal{width:200px;height:200px}

/* ---------- Mentions ---------- */
.legal{max-width:760px}
.legal-item{display:grid;grid-template-columns:56px 1fr;gap:20px;padding:36px 0;border-bottom:1px solid var(--hair)}
.legal-item:first-child{padding-top:0}
.legal-item:last-child{border-bottom:0}
.legal-item small{font-family:var(--serif);font-size:24px;color:var(--acc);line-height:1.1}
.legal-item h2{font-size:clamp(24px,2.2vw,30px);margin-bottom:14px}
.legal-item p{font-size:16px;max-width:60ch}
@media(max-width:480px){.legal-item{grid-template-columns:1fr;gap:8px}}