/* ============================================================
   BIOTOPIA — feuille de style des pages légales
   (tokens + nav + footer + mise en page document)
   ============================================================ */
:root{
  --primary:#2D9B8A;
  --secondary:#4FBFA8;
  --accent:#1A6B5E;
  --accent-deep:#0F4A40;
  --light:#F0FAF8;
  --paper:#FFFFFF;
  --text:#1C2B28;
  --muted:#5B6F6A;
  --line:#DCEDE9;
  --gold:#C9A86B;
  --serif:"Spectral",Georgia,serif;
  --sans:"Hanken Grotesk",system-ui,-apple-system,sans-serif;
  --radius:18px;
  --radius-sm:12px;
  --shadow-sm:0 2px 10px rgba(26,107,94,.06);
  --shadow:0 18px 50px -22px rgba(15,74,64,.32);
  --shadow-lg:0 40px 90px -40px rgba(15,74,64,.45);
  --container:1180px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--sans);color:var(--text);background:var(--paper);line-height:1.65;font-size:17px;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
::selection{background:var(--secondary);color:#fff}
.wrap{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ===== Buttons ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;font-family:var(--sans);font-weight:600;font-size:1rem;
  padding:13px 24px;border-radius:100px;border:1.5px solid transparent;cursor:pointer;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);white-space:nowrap}
.btn svg{width:18px;height:18px}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;box-shadow:0 14px 30px -12px rgba(26,107,94,.7)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 22px 44px -14px rgba(26,107,94,.75)}

/* ===== Nav ===== */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;padding:14px 0;
  background:rgba(255,255,255,.85);backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:11px}
.brand-logo{height:34px;width:auto;display:block}
.nav-links{display:flex;align-items:center;gap:34px}
.nav-links a{font-size:.96rem;font-weight:500;color:var(--text);position:relative;transition:color .2s}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:2px;background:var(--secondary);border-radius:2px;transition:width .3s var(--ease)}
.nav-links a:hover{color:var(--accent)}
.nav-links a:hover::after{width:100%}
.nav-cta{display:flex;align-items:center;gap:14px}
.nav-cta .btn{padding:10px 20px;font-size:.92rem}
.burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.burger span{width:24px;height:2px;background:var(--text);border-radius:2px;transition:.3s var(--ease)}
.burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-menu{position:fixed;inset:0 0 0 auto;width:min(82%,340px);z-index:99;background:var(--paper);box-shadow:var(--shadow-lg);
  transform:translateX(100%);transition:transform .4s var(--ease);display:flex;flex-direction:column;padding:96px 30px 30px;gap:6px}
.mobile-menu.open{transform:translateX(0)}
.mobile-menu a{font-family:var(--serif);font-size:1.25rem;font-weight:600;padding:14px 0;border-bottom:1px solid var(--line)}
.mobile-menu .btn{margin-top:20px}
.overlay{position:fixed;inset:0;background:rgba(15,74,64,.28);z-index:98;opacity:0;pointer-events:none;transition:opacity .3s}
.overlay.open{opacity:1;pointer-events:auto}

/* ===== Legal hero ===== */
.legal-hero{position:relative;padding:140px 0 56px;overflow:hidden;
  background:radial-gradient(120% 90% at 90% -20%,rgba(79,191,168,.28),transparent 55%),var(--light)}
.legal-hero::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:60px;background:linear-gradient(to bottom,transparent,var(--paper))}
.crumb{display:flex;align-items:center;gap:8px;font-size:.9rem;color:var(--muted);margin-bottom:18px}
.crumb a{color:var(--accent);font-weight:600}
.crumb a:hover{text-decoration:underline}
.crumb svg{width:15px;height:15px;opacity:.6}
.legal-hero .eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:.78rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--accent)}
.legal-hero .eyebrow::before{content:"";width:26px;height:1.5px;background:var(--secondary);border-radius:2px}
.legal-hero h1{font-family:var(--serif);font-weight:800;font-size:clamp(2.3rem,5vw,3.4rem);line-height:1.05;letter-spacing:-.015em;margin:14px 0 0}
.legal-hero .sub{font-size:1.12rem;color:var(--muted);margin-top:16px;max-width:620px}
.legal-meta{display:inline-flex;align-items:center;gap:9px;margin-top:24px;font-size:.85rem;color:var(--accent);
  background:#fff;border:1px solid var(--line);padding:8px 16px;border-radius:100px;box-shadow:var(--shadow-sm)}
.legal-meta svg{width:15px;height:15px}

/* ===== Document layout ===== */
.legal-shell{display:grid;grid-template-columns:248px 1fr;gap:56px;align-items:start;padding:clamp(48px,7vw,84px) 0 clamp(64px,9vw,110px)}
.toc{position:sticky;top:96px}
.toc h4{font-size:.74rem;text-transform:uppercase;letter-spacing:.14em;color:var(--muted);margin-bottom:16px;font-weight:600}
.toc ol{list-style:none;counter-reset:toc;display:flex;flex-direction:column;gap:2px}
.toc li{counter-increment:toc}
.toc a{display:flex;gap:11px;padding:9px 12px;border-radius:10px;font-size:.93rem;color:var(--muted);transition:background .2s,color .2s;line-height:1.35}
.toc a .tn{font-variant-numeric:tabular-nums;font-weight:700;color:var(--secondary);font-size:.82rem;flex:none;min-width:15px}
.toc a:hover{background:var(--light);color:var(--text)}
.toc a.active{background:var(--light);color:var(--accent);font-weight:600}

.legal-body{max-width:760px}
.legal-block{padding:34px 0;border-bottom:1px solid var(--line)}
.legal-block:first-child{padding-top:0}
.legal-block:last-child{border-bottom:0}
.legal-block h2{font-family:var(--serif);font-weight:700;font-size:clamp(1.5rem,2.6vw,1.95rem);line-height:1.15;letter-spacing:-.01em;
  display:flex;align-items:baseline;gap:14px;margin-bottom:18px}
.legal-block h2 .n{font-family:var(--sans);font-size:.95rem;font-weight:700;color:var(--secondary);font-variant-numeric:tabular-nums;
  background:var(--light);width:38px;height:38px;border-radius:10px;display:inline-grid;place-items:center;flex:none;align-self:center;border:1px solid var(--line)}
.legal-block h3{font-family:var(--sans);font-weight:700;font-size:1.04rem;margin:22px 0 8px}
.legal-block p{color:var(--text);margin:0 0 14px}
.legal-block p:last-child{margin-bottom:0}
.legal-block a:not(.btn){color:var(--accent);font-weight:600;text-decoration:underline;text-underline-offset:2px;text-decoration-color:var(--secondary)}
.legal-block ul{list-style:none;margin:6px 0 16px;display:flex;flex-direction:column;gap:10px}
.legal-block ul li{position:relative;padding-left:26px;color:var(--text)}
.legal-block ul li::before{content:"";position:absolute;left:4px;top:.62em;width:8px;height:8px;border-radius:50%;
  background:var(--secondary);box-shadow:0 0 0 4px rgba(79,191,168,.16)}
.legal-block ul li b{color:var(--text)}
.muted{color:var(--muted)}

/* identity card / definition rows */
.idcard{background:var(--light);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;margin:4px 0 6px}
.idrow{display:grid;grid-template-columns:210px 1fr;gap:18px;padding:15px 24px;border-bottom:1px solid var(--line);font-size:.97rem}
.idrow:last-child{border-bottom:0}
.idrow dt{color:var(--muted);font-weight:500}
.idrow dd{color:var(--text);font-weight:600}
.callout{background:linear-gradient(160deg,var(--accent),var(--accent-deep));color:#fff;border-radius:var(--radius);padding:28px 30px;margin:8px 0}
.callout h3{color:#fff;font-family:var(--serif);font-size:1.3rem;margin:0 0 8px}
.callout p{color:rgba(255,255,255,.88);margin:0}
.callout a:not(.btn){color:#fff;text-decoration-color:rgba(255,255,255,.6)}

/* ===== Footer ===== */
.footer{background:var(--text);color:rgba(255,255,255,.7);padding:70px 0 34px}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:46px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer .brand{margin-bottom:18px}
.footer .brand-logo{height:38px;filter:brightness(0) invert(1)}
.footer-about{max-width:300px;font-size:.95rem;line-height:1.7}
.footer-social{display:flex;gap:12px;margin-top:22px}
.footer-social a{width:40px;height:40px;border-radius:50%;border:1px solid rgba(255,255,255,.18);display:grid;place-items:center;color:#fff;transition:background .25s,border-color .25s,transform .25s}
.footer-social a:hover{background:var(--primary);border-color:var(--primary);transform:translateY(-3px)}
.footer-social svg{width:17px;height:17px}
.footer-col h4{font-family:var(--sans);font-size:.82rem;text-transform:uppercase;letter-spacing:.12em;color:#fff;margin-bottom:18px;font-weight:600}
.footer-col a{display:block;font-size:.95rem;padding:6px 0;transition:color .2s,padding-left .2s}
.footer-col a:hover{color:#fff;padding-left:5px}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;gap:16px;padding-top:26px;font-size:.86rem;flex-wrap:wrap}
.footer-bottom a:hover{color:#fff}
.footer-bottom .active{color:#fff;font-weight:600}

@media (max-width:960px){
  .nav-links,.nav-cta .btn{display:none}
  .burger{display:flex}
  .legal-shell{grid-template-columns:1fr;gap:8px}
  .toc{position:static;margin-bottom:30px;background:var(--light);border:1px solid var(--line);border-radius:var(--radius);padding:22px 22px 14px}
  .footer-top{grid-template-columns:1fr 1fr}
}
@media (max-width:600px){
  .wrap{padding:0 18px}
  .idrow{grid-template-columns:1fr;gap:3px;padding:14px 18px}
  .idrow dt{font-size:.82rem}
  .footer-top{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;text-align:center}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}