/* Direction A — FLUIDE & DYNAMIQUE : courbes, mouvement, vitesse. Blanc/cyan/encre, formes arrondies, vagues. */
  :root{
    --bg:#ffffff; --bg-soft:#e4f4fc; --bg-grey:#eaf0f3; --ink:#0c1a24; --ink-soft:#49606e; --ink-faint:#8aa0ac;
    --cyan:#12b6e8; --cyan-deep:#0a7fb0; --cyan-ink:#076a90; --cyan-wash:#e4f6fd; --cyan-wash-2:#d2f0fb;
    --line:rgba(12,26,36,.09);
    --maxw:1160px; --r:26px;
    --disp:"Sora",system-ui,sans-serif; --body:"Manrope",system-ui,-apple-system,"Segoe UI",sans-serif;
    color-scheme:light;
  }
  *{box-sizing:border-box}
  body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--body);font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
  h1,h2,h3{font-family:var(--disp);font-weight:800;line-height:1.02;margin:0;letter-spacing:-.025em;text-wrap:balance}
  p{margin:0}a{color:inherit;text-decoration:none}img{max-width:100%}
  .wrap{width:100%;max-width:var(--maxw);margin-inline:auto;padding-left:max(22px,env(safe-area-inset-left,0px));padding-right:max(22px,env(safe-area-inset-right,0px))}
  .eyebrow{font-weight:700;font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--cyan-deep)}
  .btn{display:inline-flex;align-items:center;gap:9px;font-family:var(--disp);font-weight:700;font-size:15px;padding:14px 26px;border-radius:999px;border:2px solid transparent;cursor:pointer;transition:transform .15s,box-shadow .15s,background .15s;white-space:nowrap}
  .btn:active{transform:translateY(1px)}
  .btn-primary{background:var(--cyan);color:#042430;box-shadow:0 12px 26px -10px rgba(18,182,232,.75)}
  .btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 34px -12px rgba(18,182,232,.9)}
  .btn-ghost{border-color:var(--ink);color:var(--ink)}
  .btn-ghost:hover{background:var(--ink);color:#fff}

  /* header */
  header.site{position:sticky;top:env(safe-area-inset-top,0px);z-index:40;background:rgba(255,255,255,.82);backdrop-filter:blur(12px)}
  body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:41;background:#fff}
  .nav{display:flex;align-items:center;gap:20px;min-height:74px}
  .brand{display:flex;align-items:center;gap:11px;margin-right:auto}
  .brand .mark{width:46px;height:46px;flex:none}
  .brand .bt{font-family:var(--disp);font-weight:800;font-size:22px;letter-spacing:-.03em;line-height:.95}
  .brand .bs{font-size:10px;letter-spacing:.2em;color:var(--ink-faint);text-transform:uppercase;font-weight:600}
  .nav nav{display:flex;gap:3px}
  .nav nav a{font-weight:600;font-size:14.5px;color:var(--ink-soft);padding:9px 14px;border-radius:999px;transition:color .15s,background .15s}
  .nav nav a:hover{color:var(--ink);background:var(--cyan-wash)}
  .nav nav a.active{color:var(--cyan-deep);background:var(--cyan-wash)}
  .burger{display:none;background:var(--cyan-wash);border:0;width:46px;height:46px;border-radius:14px;align-items:center;justify-content:center;cursor:pointer;color:var(--ink)}

  /* hero */
  .hero{position:relative;overflow:hidden;padding-top:26px}
  .blob{position:absolute;z-index:0;border-radius:50%;filter:blur(2px)}
  .blob.b1{width:760px;height:760px;background:radial-gradient(circle at 35% 35%,var(--cyan-wash-2),transparent 62%);top:-280px;right:-200px}
  .blob.b2{width:520px;height:520px;background:radial-gradient(circle at 50% 50%,rgba(18,182,232,.10),transparent 60%);bottom:-230px;left:-160px}
  .hero .wrap{position:relative;z-index:1;display:grid;grid-template-columns:1.04fr .96fr;gap:30px;align-items:center;padding-block:clamp(30px,5vw,64px)}
  .hpill{display:inline-flex;align-items:center;gap:9px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 16px 8px 10px;font-size:13.5px;font-weight:600;color:var(--ink-soft);box-shadow:0 8px 22px -14px rgba(12,26,36,.35)}
  .hpill .tag{background:var(--cyan);color:#042430;font-weight:700;font-size:11.5px;padding:3px 10px;border-radius:999px;letter-spacing:.03em}
  h1.htitle{font-size:clamp(44px,7.6vw,86px);margin-top:22px;letter-spacing:-.035em}
  h1.htitle .fast{font-style:italic;color:var(--cyan-deep);position:relative;display:inline-block}
  h1.htitle .fast::after{content:"";position:absolute;left:-6%;right:-4%;bottom:.1em;height:.14em;background:var(--cyan);border-radius:999px;transform:skewX(-16deg);opacity:.35}
  .hsub{margin-top:22px;font-size:18px;color:var(--ink-soft);max-width:44ch}
  .hcta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
  .hstats{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px}
  .chip{display:flex;flex-direction:column;background:var(--bg-soft);border-radius:18px;padding:12px 20px;min-width:92px}
  .chip b{font-family:var(--disp);font-weight:800;font-size:24px;line-height:1;color:var(--cyan-deep)}
  .chip span{font-size:12px;font-weight:600;color:var(--ink-soft);letter-spacing:.04em;text-transform:uppercase;margin-top:4px}

  .hero-art{position:relative;display:flex;align-items:center;justify-content:center}
  .hero-art .disc{position:absolute;inset:4%;background:linear-gradient(145deg,var(--cyan) 0%,#0ea3d6 60%,#0a7fb0 100%);border-radius:48% 52% 55% 45%/52% 46% 54% 48%;box-shadow:0 40px 80px -30px rgba(10,127,176,.6)}
  .hero-art .speed{position:absolute;height:5px;background:#fff;border-radius:999px;opacity:.6}
  .hero-art .s1{width:38%;top:38%;left:-6%}.hero-art .s2{width:26%;top:50%;left:-2%}.hero-art .s3{width:30%;top:62%;left:-8%}
  .hero-art .car{position:relative;z-index:2;width:86%;filter:drop-shadow(0 26px 30px rgba(4,36,48,.4))}
  .hero-art .float{position:absolute;z-index:3;background:#fff;border-radius:16px;padding:10px 16px;font-weight:700;font-size:13.5px;box-shadow:0 16px 30px -14px rgba(12,26,36,.4);display:flex;align-items:center;gap:8px}
  .hero-art .f1{top:12%;right:2%}.hero-art .f2{bottom:9%;left:-2%}
  .hero-art .float .dot{width:9px;height:9px;border-radius:50%;background:#2fd07f}
  .hero-art .float b{color:var(--cyan-deep)}

  .wave{display:block;width:100%;height:auto;color:var(--bg-soft)}
  .sep{line-height:0}
  .wave2{display:block;width:100%;height:auto}

  /* categories — flowing rounded cards, offset */
  .catsec{background:var(--bg-soft);padding-block:clamp(50px,7vw,92px)}
  .sechead{max-width:640px;margin-bottom:38px}
  .sechead h2{font-size:clamp(30px,4.8vw,50px);margin-top:12px}
  .sechead p{color:var(--ink-soft);margin-top:14px;font-size:17px}
  .cats{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
  .cat{background:#fff;border-radius:var(--r);padding:30px 28px;position:relative;overflow:hidden;transition:transform .2s,box-shadow .2s;box-shadow:0 20px 40px -28px rgba(12,26,36,.3)}
  .cat:nth-child(2){transform:translateY(-18px)}
  .cat:hover{transform:translateY(-6px);box-shadow:0 30px 50px -26px rgba(10,127,176,.4)}
  .cat:nth-child(2):hover{transform:translateY(-24px)}
  .cat .ring{position:absolute;width:150px;height:150px;border-radius:50%;background:var(--cyan-wash);top:-50px;right:-50px;transition:background .2s}
  .cat:hover .ring{background:var(--cyan-wash-2)}
  .cat .big{position:relative;font-family:var(--disp);font-weight:800;font-size:54px;color:var(--ink);letter-spacing:-.04em;line-height:.9}
  .cat h3{position:relative;font-family:var(--body);font-weight:700;font-size:15px;color:var(--cyan-deep);text-transform:uppercase;letter-spacing:.05em;margin-top:8px}
  .cat .tags{display:flex;gap:8px;margin:16px 0 14px}
  .tag2{font-size:12px;font-weight:700;padding:5px 12px;border-radius:999px}
  .tag2.e{background:var(--cyan);color:#042430}.tag2.t{background:var(--cyan-wash-2);color:var(--cyan-ink)}
  .cat p{position:relative;font-size:14.5px;color:var(--ink-soft)}
  .cat .lvl{display:flex;align-items:center;gap:10px;margin-top:20px;font-size:12.5px;font-weight:600;color:var(--ink-faint)}
  .cat .lvl .t{flex:1;height:7px;border-radius:999px;background:var(--cyan-wash-2);overflow:hidden}
  .cat .lvl .t i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--cyan),var(--cyan-deep))}
  .cat .specs{display:flex;flex-direction:column;gap:12px;margin:18px 0 4px}
  .spec-row{display:flex;flex-direction:column;gap:3px;font-size:13.5px}
  .spec-row .sl{display:inline-flex;align-items:center;gap:6px;font-weight:700;font-size:12px;letter-spacing:.04em;text-transform:uppercase}
  .spec-row.elec .sl{color:var(--cyan-deep)}
  .spec-row.thermo .sl{color:var(--ink)}
  .spec-row .sl svg{flex:none}
  .spec-row .sv{color:var(--ink-soft);line-height:1.45}

  /* piste — flowing feature row */
  .piste{padding-block:clamp(50px,7vw,92px);background:radial-gradient(900px 480px at 88% -8%,rgba(18,182,232,.08),transparent 60%),radial-gradient(700px 420px at 2% 108%,rgba(18,182,232,.06),transparent 60%)}
  .piste-wrap{display:grid;grid-template-columns:.95fr 1.05fr;gap:46px;align-items:center}
  .plan-blob{position:relative;border-radius:30px;background:linear-gradient(160deg,var(--cyan-wash),#fff);padding:20px;overflow:hidden;display:flex;flex-direction:column;gap:16px}
  .plan-blob::before{content:"";position:absolute;width:260px;height:260px;border-radius:50%;background:rgba(18,182,232,.10);bottom:-90px;right:-70px}
  .plan-blob svg{position:relative;width:100%}
  .feats{display:flex;flex-direction:column;gap:14px}
  .feat{display:flex;gap:16px;align-items:flex-start;background:#fff;border-radius:20px;padding:18px 20px;transition:background .18s;box-shadow:0 16px 34px -30px rgba(12,26,36,.5)}
  .feat:hover{background:var(--bg-soft)}
  .feat .fi{width:48px;height:48px;flex:none;border-radius:14px;background:var(--cyan-wash);display:flex;align-items:center;justify-content:center;color:var(--cyan-deep)}
  .feat h3{font-family:var(--body);font-weight:700;font-size:16.5px}
  .feat p{font-size:14px;color:var(--ink-soft);margin-top:3px}
  .nota{display:flex;gap:12px;align-items:center;margin-top:16px;background:var(--cyan-wash);border-radius:16px;padding:14px 18px;color:var(--cyan-ink);font-weight:600;font-size:14px}

  /* inscription — big cyan curvy band */
  .join{position:relative;margin:0 max(22px,env(safe-area-inset-left,0px));border-radius:36px;background:linear-gradient(135deg,var(--cyan) 0%,#0ea3d6 55%,#0a7fb0 100%);color:#fff;overflow:hidden}
  .join-in{position:relative;z-index:1;padding:clamp(40px,6vw,66px);display:grid;grid-template-columns:1.1fr .9fr;gap:34px;align-items:center}
  .join .o1,.join .o2{position:absolute;border-radius:50%;border:2px solid rgba(255,255,255,.22)}
  .join .o1{width:360px;height:360px;top:-150px;right:-80px}
  .join .o2{width:220px;height:220px;bottom:-120px;left:10%}
  .join h2{color:#fff;font-size:clamp(28px,4vw,44px)}
  .join p{color:rgba(255,255,255,.9);margin-top:14px;font-size:16.5px;max-width:42ch}
  .join-cards{display:flex;flex-direction:column;gap:14px}
  .jc{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.25);border-radius:20px;padding:18px 20px;backdrop-filter:blur(4px)}
  .jc .jt{font-weight:700;font-size:16px;display:flex;align-items:center;justify-content:space-between}
  .jc .jt .mini{font-size:11.5px;background:#fff;color:var(--cyan-deep);padding:3px 10px;border-radius:999px;font-weight:700}
  .jc p{font-size:13.5px;color:rgba(255,255,255,.85);margin-top:6px}
  .jc a{display:inline-flex;align-items:center;gap:7px;margin-top:12px;font-weight:700;font-size:14px;background:#fff;color:#063445;padding:9px 18px;border-radius:999px}

  /* news */
  .news{padding-block:clamp(50px,7vw,92px);background:var(--bg-grey)}
  .nhead{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;flex-wrap:wrap;margin-bottom:34px}
  .posts{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
  .post{background:#fff;border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column;transition:transform .2s,box-shadow .2s;box-shadow:0 20px 40px -30px rgba(12,26,36,.4)}
  .post:hover{transform:translateY(-6px);box-shadow:0 30px 50px -28px rgba(10,127,176,.4)}
  .post .ph{aspect-ratio:16/10;position:relative;background:linear-gradient(150deg,var(--cyan-wash),var(--cyan-wash-2));display:flex;align-items:center;justify-content:center;color:var(--cyan-deep)}
  .post .ph .pt{position:absolute;top:14px;left:14px;background:#fff;color:var(--cyan-deep);font-weight:700;font-size:11.5px;padding:5px 12px;border-radius:999px}
  .post .pb{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
  .post time{font-size:12.5px;font-weight:600;color:var(--ink-faint)}
  .post h3{font-family:var(--body);font-weight:700;font-size:18px;line-height:1.28}
  .post p{font-size:14px;color:var(--ink-soft)}
  .post .more{margin-top:auto;font-weight:700;font-size:14px;color:var(--cyan-deep);display:inline-flex;align-items:center;gap:6px}

  /* footer */
  footer.site{background:var(--ink);color:#c7dbe4;padding-block:clamp(44px,6vw,70px) 26px}
  .fgrid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:38px}
  footer .brand .bt{color:#fff}footer .brand .bs{color:#7fa0b0}
  footer .lead{margin-top:14px;font-size:14.5px;max-width:34ch;color:#9fbac7}
  .fcol h4{color:#fff;font-size:13px;letter-spacing:.12em;text-transform:uppercase;margin:0 0 15px;font-weight:700}
  .fcol a,.fcol p{display:flex;gap:10px;align-items:center;color:#a9c3cf;font-size:14.5px;margin-bottom:11px}
  .fcol a:hover{color:#fff}.fcol svg{color:var(--cyan)}
  .socs{display:flex;gap:10px;margin-top:6px}
  .socs a{width:42px;height:42px;border-radius:50%;background:rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center;color:#fff}
  .socs a:hover{background:var(--cyan);color:#042430}
  .fbar{margin-top:36px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);display:flex;flex-wrap:wrap;gap:8px;justify-content:space-between;color:#7fa0b0;font-size:13px}

  /* real images */
  .logo-img{height:46px;width:auto;display:block}
  footer .logo-img{height:44px;filter:brightness(0) invert(1)}
  .photo-wrap{position:relative;z-index:1;width:100%;border-radius:30px 30px 34px 30px;overflow:hidden;box-shadow:0 36px 70px -34px rgba(4,36,48,.55)}
  .photo-wrap img{display:block;width:100%;aspect-ratio:4/3;object-fit:cover}
  .art-blob{position:absolute;z-index:0;inset:-9% -6% -11% -10%;background:radial-gradient(circle at 60% 40%,var(--cyan-wash-2),rgba(18,182,232,.08) 55%,transparent 72%);border-radius:46% 54% 52% 48%/54% 48% 52% 46%}
  .plan-blob img{position:relative;z-index:1;width:100%;display:block;height:auto;border-radius:16px}
  .post .ph{overflow:hidden}
  .post .ph img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
  @media(max-width:900px){
    .nav nav{display:none}.nav .btn.join-nav{display:none}.burger{display:inline-flex}
    .hero .wrap{grid-template-columns:1fr;gap:24px}.hero-art{max-width:400px;margin-inline:auto;order:-1}
    .cats,.posts{grid-template-columns:1fr}.cat:nth-child(2){transform:none}.cat:nth-child(2):hover{transform:translateY(-6px)}
    .piste-wrap{grid-template-columns:1fr;gap:30px}.join-in{grid-template-columns:1fr;gap:26px}.fgrid{grid-template-columns:1fr}
  }
  @media(prefers-reduced-motion:reduce){*{transition:none!important}}
/* ---- Galerie ---- */
.galsec{padding-block:clamp(50px,7vw,92px)}
.galgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.galgrid figure{margin:0;border-radius:18px;overflow:hidden;aspect-ratio:4/3;box-shadow:0 18px 38px -28px rgba(12,26,36,.4)}
.galgrid figure img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .35s}
.galgrid figure:hover img{transform:scale(1.05)}
@media(max-width:900px){.galgrid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:430px){.galgrid{grid-template-columns:1fr}}

/* ---- Menu mobile ---- */
.nav{position:relative}
@media(max-width:900px){
  .nav nav.open{display:flex;position:absolute;top:100%;left:0;right:0;flex-direction:column;background:#fff;padding:12px 22px 18px;gap:2px;box-shadow:0 22px 44px -22px rgba(12,26,36,.35);border-top:1px solid var(--line);border-radius:0 0 18px 18px}
  .nav nav.open a{padding:12px 12px;border-radius:12px}
}

/* ---- Page article ---- */
.article{max-width:760px;padding-block:clamp(36px,6vw,64px)}
.article .back{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--cyan-deep);margin-bottom:22px}
.article .art-label{display:inline-block;font-weight:700;font-size:12.5px;letter-spacing:.04em;text-transform:uppercase;color:var(--cyan-deep);background:var(--cyan-wash);padding:5px 13px;border-radius:999px}
.article h1{font-family:var(--disp);font-weight:800;font-size:clamp(30px,5vw,48px);letter-spacing:-.025em;margin:14px 0 8px;line-height:1.05}
.article .art-date{display:block;color:var(--ink-faint);font-weight:600;font-size:14px;margin-bottom:24px}
.article .art-img{width:100%;border-radius:22px;margin-bottom:26px;box-shadow:0 26px 54px -30px rgba(12,26,36,.5)}
.article .art-body{font-size:17px;color:var(--ink-soft);line-height:1.8;margin-bottom:30px}

/* ---- Barre utilitaire (haut) ---- */
.utilbar{background:var(--ink);color:#aec3cf;font-size:13px}
.utilbar-in{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:38px}
.utilbar .loc{display:inline-flex;align-items:center;gap:7px}
.utilbar .loc svg{color:var(--cyan)}
.util-icons{display:flex;align-items:center;gap:4px}
.util-icons a{width:30px;height:30px;border-radius:8px;display:flex;align-items:center;justify-content:center;color:#cfe0e9;transition:background .15s,color .15s}
.util-icons a:hover{background:rgba(255,255,255,.12);color:#fff}
@media(max-width:560px){.utilbar .loc{font-size:12px}.utilbar .loc span{display:none}}

/* ---- Photo de catégorie ---- */
.cat .cat-photo{position:relative;z-index:1;margin:-30px -28px 18px;height:150px;overflow:hidden}
.cat .cat-photo img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .3s}
.cat:hover .cat-photo img{transform:scale(1.05)}

/* ---- Lien règlement sous l'intro inscription ---- */
.join .reglt-link{display:inline-flex;align-items:center;gap:7px;margin-top:14px;font-weight:600;font-size:14.5px;color:#fff;border-bottom:1px solid rgba(255,255,255,.4);padding-bottom:3px;align-self:flex-start}
.join .reglt-link:hover{border-color:#fff}

/* ---- Pages (règlement, mentions) ---- */
.page{max-width:820px;padding-block:clamp(40px,6vw,76px)}
.page .back{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--cyan-deep);margin-bottom:20px}
.page h1{font-family:var(--disp);font-weight:800;font-size:clamp(32px,5vw,52px);letter-spacing:-.025em;margin:8px 0 26px}
.page-content{font-size:16.5px;color:var(--ink-soft);line-height:1.8}
.page-content h3{font-family:var(--body);font-weight:700;font-size:19px;color:var(--ink);margin:30px 0 10px}
.page-content p{margin:0 0 14px}
.page-content strong{color:var(--ink)}

/* ---- Bouton e-mail (pied) ---- */
.fcol .mailbtn{display:inline-flex;align-items:center;gap:9px;background:var(--cyan);color:#042430;padding:10px 18px;border-radius:999px;font-weight:700;font-size:14.5px;margin-bottom:0}
.fcol .mailbtn svg{color:#042430}
.fcol .mailbtn:hover{background:#2cc3f3;color:#042430}
.fbar a{color:#9fbac7}
.fbar a:hover{color:#fff}

/* ---- Galerie d'article (photos supplémentaires) ---- */
.art-gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:0 0 30px}
.art-gallery a{display:block;border-radius:14px;overflow:hidden;aspect-ratio:4/3;box-shadow:0 16px 34px -26px rgba(12,26,36,.4)}
.art-gallery img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .35s}
.art-gallery a:hover img{transform:scale(1.05)}
@media(max-width:700px){.art-gallery{grid-template-columns:1fr 1fr}}