:root {
  /* Provisional semantic values: final BRAND hex values remain to be frozen. */
  --tg-graphite:#232421;
  --tg-graphite-soft:#30312d;
  --tg-bone:#f2eee5;
  --tg-paper:#e9e2d5;
  --tg-warm-grey:#9a958c;
  --tg-weathered-stone:#b8ad9d;
  --tg-old-bronze:#8b7449;
  --tg-ink:#262521;
  --tg-muted:#67635c;
  --tg-rule:rgba(38,37,33,.18);
  --tg-header-h:76px;
  --tg-shell:1280px;
  --tg-pad:clamp(22px,4.2vw,68px);
  --tg-serif:"Source Serif 4",Georgia,"Times New Roman",Times,serif;
  --tg-sans:"Source Sans 3",Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:var(--tg-header-h)}
body{font-synthesis:none;margin:0;background:var(--tg-bone);color:var(--tg-ink);font-family:var(--tg-sans);font-size:16px;line-height:1.58;text-rendering:optimizeLegibility}
body.menu-open{overflow:hidden}
a{color:inherit;text-decoration-thickness:1px;text-underline-offset:4px}
img{display:block;max-width:100%}
button{font:inherit}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:fixed;left:16px;top:12px;z-index:1000;background:var(--tg-bone);padding:10px 14px;transform:translateY(-180%)}
.skip-link:focus{transform:none}
:focus-visible{outline:2px solid var(--tg-old-bronze);outline-offset:4px}
.shell{width:min(var(--tg-shell),calc(100% - (2 * var(--tg-pad))));margin-inline:auto}
.site-header{position:fixed;inset:0 0 auto;z-index:50;min-height:var(--tg-header-h);border-bottom:1px solid rgba(255,255,255,.10);background:rgba(35,36,33,.90);color:#f4f0e7;backdrop-filter:blur(14px)}
.header-inner{height:var(--tg-header-h);display:flex;align-items:center;justify-content:space-between;gap:28px}
.wordmark{text-decoration:none;display:inline-flex;flex-direction:column;line-height:1}
.wordmark-main{font-family:var(--tg-brand-serif,var(--tg-serif));font-size:21px;letter-spacing:.13em}
.wordmark-sub{margin-top:7px;font-size:9px;letter-spacing:.27em;text-transform:uppercase;color:#d1c9b9}
.desktop-nav{display:flex;align-items:center;gap:clamp(18px,2.4vw,34px);font-size:13px;letter-spacing:.04em}
.desktop-nav a{text-decoration:none;color:#ded8cc}
.desktop-nav a[aria-current="page"],.desktop-nav a:hover{color:#fff}
.menu-toggle{display:none;background:none;border:0;color:inherit;width:44px;height:44px;position:relative;cursor:pointer}
.menu-toggle span[aria-hidden]{position:absolute;left:10px;right:10px;height:1px;background:currentColor;transition:transform .2s ease,top .2s ease}
.menu-toggle span:nth-of-type(2){top:17px}.menu-toggle span:nth-of-type(3){top:26px}
.menu-toggle[aria-expanded="true"] span:nth-of-type(2){top:22px;transform:rotate(45deg)}
.menu-toggle[aria-expanded="true"] span:nth-of-type(3){top:22px;transform:rotate(-45deg)}
.mobile-menu{position:absolute;top:100%;left:0;right:0;height:calc(100dvh - var(--tg-header-h));z-index:2;background:rgba(35,36,33,.985);color:#fff;overflow:auto;overscroll-behavior:contain}
.mobile-nav{padding-block:32px 52px;display:grid}
.mobile-nav a{padding:17px 0;border-bottom:1px solid rgba(255,255,255,.12);font-family:var(--tg-sans);font-size:clamp(24px,7vw,38px);text-decoration:none}
.section-anchor{scroll-margin-top:0}
.association-hero{padding-top:calc(var(--tg-header-h) + clamp(36px,5vw,72px));padding-bottom:clamp(54px,7vw,92px);background:#ddd4c7}
.hero-grid{min-height:72svh;display:grid;grid-template-columns:5fr 7fr;gap:clamp(36px,5vw,74px);align-items:center}
.hero-copy{padding-block:24px;max-width:610px}
.eyebrow{margin:0 0 20px;font-size:11px;font-weight:650;letter-spacing:.18em;text-transform:uppercase;color:var(--tg-old-bronze)}
h1,h2,h3,.editorial-quote,.closing-line{font-family:var(--tg-serif);font-weight:400}
h1{margin:0;font-size:clamp(35px,3.65vw,60px);line-height:1.04;letter-spacing:-.025em}
.hero-support{margin:32px 0 0;max-width:58ch;color:#47433d;font-size:17px}
.positioning{margin:28px 0 0;padding-top:20px;border-top:1px solid rgba(38,37,33,.22);font-size:12px;letter-spacing:.08em;text-transform:lowercase;color:#5f5a52}
.positioning span{color:var(--tg-old-bronze);padding-inline:5px}
.visual{overflow:hidden;background:#bbb0a1}
.visual img{width:100%;height:100%;object-fit:cover}
.hero-visual{aspect-ratio:3/2;box-shadow:0 24px 70px rgba(31,29,25,.18)}
.hero-visual img{object-position:50% 50%}
.section{padding-block:clamp(80px,10vw,146px);border-top:1px solid var(--tg-rule)}
.section h2{margin:0;font-size:clamp(34px,4.1vw,61px);line-height:1.02;letter-spacing:-.025em}
.section-heading-row{display:grid;grid-template-columns:minmax(0,9fr) minmax(180px,3fr);gap:40px;align-items:end}
.section-lead{font-family:var(--tg-serif);font-size:20px;font-style:italic;color:var(--tg-muted);margin:0 0 6px}
.three-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:clamp(52px,7vw,92px)}
.ruled-grid article{padding:0 clamp(22px,3vw,42px) 0 0;border-top:1px solid var(--tg-ink);padding-top:22px}
.ruled-grid article+article{border-left:1px solid var(--tg-rule);padding-left:clamp(22px,3vw,42px)}
.index{margin:0 0 42px;color:var(--tg-old-bronze);font-size:12px;letter-spacing:.12em}
.three-grid h3,.values-grid h3,.symbol-list h3{font-size:26px;margin:0 0 18px}
.three-grid p,.values-grid p,.symbol-list p{color:#555149;margin:0;max-width:42ch}
.knowledge{background:var(--tg-graphite);color:#eee9df;border-top:0}
.knowledge .eyebrow{color:#b59d73}
.knowledge-grid{display:grid;grid-template-columns:3fr 9fr;gap:clamp(30px,5vw,72px)}
.knowledge h2{color:#b8afa2;font-size:clamp(24px,2.4vw,34px);margin-bottom:45px}
.editorial-quote{font-size:clamp(34px,5vw,72px);line-height:1.03;letter-spacing:-.03em;margin:0;max-width:18ch}
.supporting-quote{margin:42px 0 0;font-size:clamp(18px,2vw,25px);max-width:55ch;color:#d6cfc2}
.quiet-principle{margin:34px 0 0;color:#aaa091;font-size:13px;letter-spacing:.12em;text-transform:uppercase}
.values h2{max-width:1000px}
.values-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:0;margin-top:70px;border-top:1px solid var(--tg-ink)}
.values-grid article{padding:24px 22px 0 0}
.values-grid article+article{border-left:1px solid var(--tg-rule);padding-left:22px}
.values-grid h3{font-size:22px}
.method{background:#e7dfd2}
.method-grid{gap:clamp(24px,4vw,64px)}
.method-grid article{border-top:1px solid var(--tg-ink);padding-top:24px}
.method-principle{margin:70px 0 0;padding-top:24px;border-top:1px solid var(--tg-rule);font-family:var(--tg-serif);font-size:clamp(22px,2.5vw,34px);font-style:italic}
.symbols{background:#d8cdbd}
.symbols-grid{display:grid;grid-template-columns:6fr 6fr;gap:clamp(38px,6vw,88px);align-items:center}
.symbols-visual{aspect-ratio:4/3}
.symbols-copy h2{margin-bottom:46px}
.symbol-list{display:grid;gap:26px}
.symbol-list article{padding-top:19px;border-top:1px solid rgba(38,37,33,.35)}
.symbol-list h3{font-size:24px;margin-bottom:9px}
.boundary-note{margin:40px 0 0;padding:18px 0 0;border-top:1px solid rgba(38,37,33,.18);font-size:13px;color:#605a51;max-width:60ch}
.scale-note{background:var(--tg-bone)}
.scale-grid{display:grid;grid-template-columns:3fr 9fr;gap:clamp(30px,5vw,72px)}
.scale-grid h2{max-width:18ch;margin-bottom:28px}
.scale-grid p:not(.eyebrow){max-width:65ch;color:#555149}
.closing{padding-block:clamp(82px,11vw,150px);background:var(--tg-graphite-soft);color:#eee9df;text-align:center}
.closing .eyebrow{color:#ac9874}
.closing-line{font-size:clamp(36px,5vw,72px);line-height:1.05;margin:0}
.closing-note{margin:24px 0 0;color:#bdb5a8;letter-spacing:.08em;font-size:12px;text-transform:lowercase}
.site-footer{background:#1d1e1b;color:#bdb7ac;padding:52px 0 24px}
.footer-grid{display:grid;grid-template-columns:5fr 3fr 4fr;gap:44px;padding-bottom:44px}
.footer-brand{font-family:var(--tg-serif);font-size:26px;letter-spacing:.12em;margin:0 0 9px;color:#f0ebe1}
.site-footer p{margin:0;font-size:13px}
.site-footer nav,.footer-pending{display:grid;align-content:start;gap:10px;font-size:13px}
.site-footer nav a{color:#d6d0c5;text-decoration:none}
.footer-pending{color:#7f7a71}.footer-pending span::after{content:" — à finaliser";font-size:10px;color:#615e58}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:20px;display:flex;align-items:center;justify-content:space-between}
.back-top{width:44px;height:44px;border:1px solid rgba(255,255,255,.2);background:transparent;color:#e2ddd3;cursor:pointer}
@media (max-width:1000px){
  .desktop-nav{display:none}.menu-toggle{display:block}
  .hero-grid{grid-template-columns:1fr;min-height:auto}.hero-copy{max-width:850px}.hero-visual{width:100%}
  .values-grid{grid-template-columns:repeat(3,1fr)}.values-grid article:nth-child(4){border-left:0;padding-left:0}.values-grid article:nth-child(n+4){margin-top:38px;border-top:1px solid var(--tg-rule);padding-top:24px}
  .symbols-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:760px){
  :root{--tg-header-h:68px;--tg-pad:22px}
  .association-hero{padding-top:calc(var(--tg-header-h) + 34px);padding-bottom:62px}
  .hero-grid{gap:34px}.hero-copy{padding-block:0}.hero-support{font-size:16px;margin-top:24px}.positioning{line-height:1.7}
  h1{font-size:clamp(33px,10vw,48px)}
  .hero-visual{aspect-ratio:4/3}.hero-visual img{object-position:50% 50%}
  .section{padding-block:78px}.section-heading-row,.knowledge-grid,.scale-grid{grid-template-columns:1fr;gap:20px}
  .section-heading-row{align-items:start}.section-lead{margin-top:4px}
  .three-grid{grid-template-columns:1fr;margin-top:52px}.ruled-grid article{padding:22px 0 36px}.ruled-grid article+article{border-left:0;padding-left:0}
  .method-grid{gap:0}.method-grid article{padding:24px 0 36px}
  .knowledge h2{margin-bottom:28px}.editorial-quote{font-size:clamp(34px,10vw,52px)}
  .values-grid{grid-template-columns:1fr;margin-top:50px}.values-grid article,.values-grid article+article,.values-grid article:nth-child(4),.values-grid article:nth-child(n+4){border-left:0;border-top:1px solid var(--tg-rule);padding:22px 0 30px;margin:0}
  .symbols-grid{grid-template-columns:1fr;gap:42px}.symbols-visual{order:1}.symbols-copy{order:0}.symbols-copy h2{margin-bottom:28px}
  .method-principle{margin-top:34px}.footer-grid{grid-template-columns:1fr;gap:30px}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}

/* =========================================================
   Association V1 Implementation V0.2 — Desktop Visual Rebalance
   Visual QA response: stronger image presence, closer shared shell rhythm.
   Mobile below 760px intentionally remains close to V0.1.
   ========================================================= */

/* Shared-shell brand lockup, aligned with the Homepage visual reference. */
.wordmark{display:inline-flex;flex-direction:row;align-items:center;gap:13px;line-height:1;text-decoration:none}
.brand-mark{width:34px;height:34px;border:1px solid rgba(244,240,231,.52);display:inline-flex;align-items:center;justify-content:center;font-family:var(--tg-brand-serif,var(--tg-serif));font-size:12px;letter-spacing:.04em;color:#f4f0e7;flex:none;padding:.03em 0 0 .08em}
.wordmark-main{font-family:var(--tg-brand-serif,var(--tg-serif));font-size:16px;font-weight:600;letter-spacing:.22em;white-space:nowrap}
.desktop-nav{font-family:var(--tg-sans);font-size:14px;letter-spacing:.01em}

@media (min-width:1001px){
  :root{--tg-shell:1340px;--tg-pad:clamp(40px,4vw,64px)}

  /* HERO — visual is a primary spatial field, not an inset card. */
  .association-hero{
    padding-top:calc(var(--tg-header-h) + clamp(30px,3.3vw,48px));
    padding-bottom:clamp(48px,5.5vw,76px);
  }
  .hero-grid{
    min-height:calc(88svh - var(--tg-header-h));
    grid-template-columns:minmax(0,4.45fr) minmax(0,7.55fr);
    gap:clamp(38px,4.2vw,66px);
    align-items:center;
  }
  .hero-copy{max-width:530px;padding-block:8px}
  .hero-copy .eyebrow{margin-bottom:18px}
  h1{font-size:clamp(42px,3.2vw,54px);line-height:1.015;letter-spacing:-.028em}
  .hero-support{margin-top:26px;font-size:16px;line-height:1.55;max-width:52ch}
  .positioning{margin-top:22px;padding-top:16px;font-size:11px;line-height:1.55}
  .hero-visual{
    width:100%;
    height:min(64svh,650px);
    min-height:500px;
    aspect-ratio:auto;
    box-shadow:0 28px 74px rgba(31,29,25,.16);
  }
  .hero-visual img{object-position:50% 50%}

  /* Section rhythm — closer to homepage viewport compositions, less report-like. */
  .section{padding-block:clamp(82px,7.5vw,116px)}
  .mission{padding-top:clamp(92px,8vw,122px);padding-bottom:clamp(88px,7vw,112px)}
  .mission .three-grid{margin-top:clamp(44px,5vw,66px)}
  .mission .index{margin-bottom:24px}
  .values{padding-top:clamp(92px,8vw,122px);padding-bottom:clamp(92px,7vw,116px)}
  .values-grid{margin-top:52px}
  .method{padding-block:clamp(90px,7vw,112px)}

  /* SYMBOLS — retain 6/12 + 6/12, but use a landscape editorial crop and more image area. */
  .symbols{padding-block:clamp(84px,7vw,108px)}
  .symbols-grid{
    grid-template-columns:minmax(0,6.25fr) minmax(0,5.75fr);
    gap:clamp(48px,5vw,76px);
    align-items:center;
  }
  .symbols-visual{
    aspect-ratio:3/2;
    min-height:390px;
    box-shadow:0 20px 58px rgba(31,29,25,.10);
  }
  .symbols-visual img{object-position:50% 50%}
  .symbols-copy h2{font-size:clamp(42px,3.65vw,58px);margin-bottom:32px;max-width:9ch}
  .symbol-list{gap:18px}
  .symbol-list article{padding-top:16px}
  .symbol-list h3{font-size:23px;margin-bottom:7px}
  .boundary-note{margin-top:28px}

  /* Closing scale note: reduce the feeling of an isolated report page. */
  .scale-note{padding-block:clamp(82px,7vw,108px)}
  .scale-grid{grid-template-columns:2.4fr 7.6fr;max-width:1100px}
  .scale-grid h2{font-size:clamp(42px,3.7vw,58px);max-width:17ch}
}

@media (min-width:761px) and (max-width:1000px){
  .wordmark-main{font-size:16px}
  .brand-mark{width:32px;height:32px}
  .hero-visual{aspect-ratio:16/10}
  .symbols-visual{aspect-ratio:3/2}
}

@media (max-width:760px){
  /* Keep the already-good mobile composition; only normalize the brand lockup. */
  .wordmark{gap:10px}
  .brand-mark{width:30px;height:30px;font-size:10px}
  .wordmark-main{font-size:15px;letter-spacing:.17em}
}


/* =========================================================
   Association V1 Implementation V0.3 — Anchor Landing Fix
   Section boundary lands directly below the fixed header.
   ========================================================= */
#symbols{scroll-margin-top:0}
@media (max-width:760px){
  #symbols{padding-top:44px}
}

/* V0.4 — Mobile menu visibility fix.
   The fixed header uses backdrop-filter, so the menu is positioned absolutely
   below the header instead of as a fixed descendant. */
.mobile-menu:not([hidden]){display:block}
.mobile-nav{min-height:100%;align-content:start}

/* =========================================================
   Participer & Coopérer V1 Implementation V0.1
   Reuses the stable Association V0.4 shell, menu and anchor behavior.
   ========================================================= */
.pc-page{background:var(--tg-bone)}
.pc-hero{padding-top:calc(var(--tg-header-h) + clamp(34px,4.5vw,64px));padding-bottom:clamp(54px,7vw,92px);background:#ddd4c7}
.pc-hero-grid{min-height:76svh;display:grid;grid-template-columns:5fr 7fr;gap:clamp(38px,5vw,76px);align-items:center}
.pc-hero-copy{max-width:560px}
.pc-hero h1{max-width:10ch}
.pc-hero-support{margin:30px 0 0;max-width:54ch;color:#47433d;font-size:17px}
.pc-hero-visual{aspect-ratio:16/9;box-shadow:0 28px 74px rgba(31,29,25,.17)}
.pc-hero-visual img{object-position:50% 53%}

.pc-split-intro{display:grid;grid-template-columns:minmax(0,4.5fr) minmax(0,7.5fr);gap:clamp(44px,7vw,104px);align-items:start}
.pc-split-intro h2,.pc-coop-heading h2,.pc-contact-grid h2{margin:0;font-family:var(--tg-serif);font-weight:400;font-size:clamp(42px,4.2vw,64px);line-height:1.02;letter-spacing:-.025em}
.pc-intro-lead{font-family:var(--tg-serif);font-size:clamp(22px,2.15vw,31px);line-height:1.22;margin:32px 0 0;color:#383630}
.pc-intro-note{margin:24px 0 0;color:#5b574f;max-width:50ch}
.pc-option-list{border-top:1px solid var(--tg-ink)}
.pc-option-list article{display:grid;grid-template-columns:50px minmax(170px,2.4fr) minmax(0,4fr);gap:22px;padding:22px 0 26px;border-bottom:1px solid var(--tg-rule);align-items:start}
.pc-option-list .index{margin:3px 0 0}
.pc-option-list h3,.pc-coop-fields h3{font-family:var(--tg-serif);font-size:23px;font-weight:400;margin:0}
.pc-option-list p:not(.index),.pc-coop-fields p{margin:0;color:#555149}


.pc-cooperer{background:var(--tg-bone)}
.pc-coop-grid{display:grid;grid-template-columns:5fr 7fr;gap:clamp(48px,7vw,100px);align-items:start}
.pc-coop-heading{position:static}
.pc-coop-case{margin:28px 0 0;padding-top:20px;border-top:1px solid var(--tg-rule);font-family:var(--tg-serif);font-size:21px;font-style:italic;color:var(--tg-muted)}
.pc-coop-fields{border-top:1px solid var(--tg-ink)}
.pc-coop-fields article{padding:24px 0 30px;border-bottom:1px solid var(--tg-rule)}
.pc-coop-fields h3{font-size:26px;margin-bottom:12px}
.pc-coop-fields p{max-width:58ch}

.pc-cooperation-boundary{background:var(--tg-graphite);color:#eee9df;border-top:0}
.pc-dark-grid{display:grid;grid-template-columns:3fr 9fr;gap:clamp(30px,5vw,72px)}
.pc-cooperation-boundary .eyebrow{color:#b59d73}
.pc-dark-grid h2{margin:0;color:#d5cdc0;font-family:var(--tg-serif);font-size:clamp(34px,4.5vw,64px);font-weight:400;line-height:1.03;letter-spacing:-.03em;max-width:17ch}
.pc-dark-quote{font-family:var(--tg-serif);font-size:clamp(25px,2.6vw,38px);line-height:1.2;margin:42px 0 0;max-width:37ch}
.pc-dark-support{margin:34px 0 0;max-width:66ch;color:#c8c0b4;font-size:17px}
.pc-dark-principle{margin:34px 0 0;color:#b09c79;font-size:13px;letter-spacing:.12em;text-transform:uppercase}

.pc-contact-entry{background:#d8cdbd}
.pc-contact-grid{display:grid;grid-template-columns:3fr 9fr;gap:clamp(30px,5vw,72px);align-items:start}
.pc-contact-grid h2{max-width:16ch}
.pc-contact-grid p:not(.eyebrow){max-width:62ch;color:#504b43;font-size:17px}
.pc-contact-status{margin-top:28px!important;padding-top:22px;border-top:1px solid rgba(38,37,33,.24);font-size:14px!important;color:#6a6258!important}

@media (min-width:1001px){
  .pc-hero-grid{min-height:calc(88svh - var(--tg-header-h));grid-template-columns:minmax(0,4.4fr) minmax(0,7.6fr);gap:clamp(42px,4.4vw,70px)}
  .pc-hero-copy{max-width:520px}
  .pc-hero h1{font-size:clamp(46px,4vw,66px);line-height:1.01}
  .pc-hero-visual{height:min(66svh,660px);aspect-ratio:auto;min-height:500px}
  .pc-participer,.pc-cooperer{padding-block:clamp(96px,8vw,126px)}
  .pc-cooperation-boundary,.pc-contact-entry{padding-block:clamp(84px,7vw,108px)}
}

@media (max-width:1000px){
  .pc-hero-grid,.pc-split-intro,.pc-coop-grid,.pc-dark-grid,.pc-contact-grid{grid-template-columns:1fr}
  .pc-hero-grid{min-height:auto}
  .pc-coop-heading{position:static}
  .pc-option-list{margin-top:18px}
}

@media (max-width:760px){
  /* V0.3 — language-length independent mobile landing.
     Shorter EN/ZH copy must not expose the next section prematurely;
     longer FR copy may extend naturally beyond one viewport. */
  .pc-hero{padding-top:calc(var(--tg-header-h) + 34px);padding-bottom:62px;min-height:100svh}
  .pc-hero-grid{gap:34px}
  .pc-hero-copy{max-width:none}
  .pc-hero h1{font-size:clamp(38px,11vw,54px);max-width:none}
  .pc-hero-support{font-size:16px;margin-top:24px}
  .pc-hero-visual{aspect-ratio:4/3}
  .pc-hero-visual img{object-position:50% 50%}
  .pc-split-intro,.pc-coop-grid{gap:48px}
  .pc-intro-lead{font-size:24px}
  .pc-option-list article{grid-template-columns:1fr;gap:8px;padding:22px 0 30px}
  .pc-option-list .index{margin:0 0 8px}
  .pc-dark-quote{font-size:27px}
  .pc-contact-grid h2{font-size:38px}
}


/* Participer & Coopérer V0.2 — Contact activation */
.pc-contact-action{display:inline-flex;align-items:center;gap:12px;margin-top:28px;min-height:48px;padding:13px 20px;background:var(--tg-graphite);color:#f4f0e7;text-decoration:none}
.pc-contact-action:hover{background:#151613}