:root{
    --green:#123f33;--green-deep:#0c2a22;--green-soft:#1f6f54;
    --ivory:#f6f3ea;--ivory-2:#efe9da;--gold:#c2a15b;--gold-deep:#a9873f;
    --ink:#15241e;--muted:#5a6b62;--line:rgba(18,63,51,.14);
    --radius:18px;--maxw:1140px;--shadow:0 24px 60px -28px rgba(12,42,34,.45);
  }
  *{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth}
  body{font-family:'Inter',system-ui,-apple-system,sans-serif;color:var(--ink);background:var(--ivory);line-height:1.6;-webkit-font-smoothing:antialiased}
  h1,h2,h3,h4{font-family:'Fraunces',Georgia,serif;font-weight:500;line-height:1.13;letter-spacing:-.01em}
  a{color:inherit}
  .wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
  .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:.74rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--gold-deep)}
  .eyebrow::before{content:"";width:26px;height:1px;background:var(--gold)}
  .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;font-weight:600;font-size:.95rem;text-decoration:none;cursor:pointer;border:none;padding:14px 24px;border-radius:999px;transition:transform .15s ease,box-shadow .2s,background .2s}
  .btn-gold{background:var(--gold);color:var(--green-deep)}
  .btn-gold:hover{background:var(--gold-deep);transform:translateY(-1px);box-shadow:0 12px 26px -12px rgba(169,135,63,.7)}
  .btn-green{background:var(--green);color:var(--ivory)}
  .btn-green:hover{background:var(--green-deep);transform:translateY(-1px)}
  .btn-ghost{background:transparent;border:1px solid var(--line);color:var(--green)}
  .btn-ghost:hover{background:#fff}

  /* Header */
  header.top{position:sticky;top:0;z-index:50;background:rgba(246,243,234,.85);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
  .top .wrap{display:flex;align-items:center;justify-content:space-between;height:68px}
  .brand{display:flex;align-items:center;gap:11px;text-decoration:none}
  .brand .mark{width:34px;height:34px;border-radius:9px;background:var(--green);color:var(--ivory);display:grid;place-items:center;font-family:'Fraunces',serif;font-weight:600;font-size:1rem}
  .brand b{font-family:'Fraunces',serif;font-weight:600;font-size:1.02rem}
  .brand span{display:block;font-size:.64rem;color:var(--muted);letter-spacing:.08em;text-transform:uppercase;font-weight:600;margin-top:1px}
  nav.links{display:none;gap:26px}
  nav.links a{text-decoration:none;font-size:.92rem;font-weight:500;color:var(--ink);opacity:.8}
  nav.links a:hover{opacity:1;color:var(--green-soft)}
  .top-cta{display:none}
  @media(min-width:900px){nav.links{display:flex}.top-cta{display:inline-flex}}

  /* Formation strip */
  .strip{background:var(--gold);color:var(--green-deep);text-align:center;font-weight:600;font-size:.92rem}
  .strip a{display:block;padding:11px 16px;text-decoration:none}

  /* Hero */
  .hero{position:relative;overflow:hidden;background:radial-gradient(1100px 520px at 85% -10%,rgba(31,111,84,.16),transparent 60%),radial-gradient(700px 400px at 0% 110%,rgba(194,161,91,.12),transparent 60%)}
  .hero .wrap{padding:64px 24px 56px}
  @media(min-width:900px){.hero .wrap{padding:90px 24px 72px}}
  .hero .kicker{max-width:60ch}
  .hero h1{font-size:clamp(2.1rem,5.2vw,3.7rem);margin:18px 0 0;max-width:20ch}
  .hero .lead{font-size:clamp(1.05rem,2.2vw,1.24rem);color:var(--muted);margin-top:22px;max-width:60ch}
  .hero .lead strong{color:var(--ink);font-weight:600}
  .hero .cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
  .stats{display:flex;flex-wrap:wrap;gap:26px 44px;margin-top:42px;padding-top:30px;border-top:1px solid var(--line)}
  .stats .s b{font-family:'Fraunces',serif;font-size:1.7rem;color:var(--green);display:block;line-height:1}
  .stats .s span{font-size:.86rem;color:var(--muted)}

  section.block{padding:74px 0}
  section.alt{background:var(--ivory-2)}
  section.dark{background:linear-gradient(150deg,var(--green-deep),var(--green));color:var(--ivory)}
  .section-head{max-width:62ch;margin:0 0 42px}
  .section-head.center{margin-left:auto;margin-right:auto;text-align:center}
  .section-head h2{font-size:clamp(1.7rem,3.6vw,2.5rem);margin:14px 0 14px}
  .section-head p{color:var(--muted);font-size:1.06rem}
  .dark .section-head p{color:rgba(246,243,234,.78)}

  .grid{display:grid;gap:22px}
  .g3{grid-template-columns:1fr}
  @media(min-width:820px){.g3{grid-template-columns:repeat(3,1fr)}}
  .card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:transform .18s,box-shadow .2s}
  .card:hover{transform:translateY(-3px);box-shadow:0 18px 40px -26px rgba(12,42,34,.4)}
  .card .num{font-family:'Fraunces',serif;font-size:1.05rem;color:var(--gold-deep);font-weight:600}
  .card h3{font-size:1.2rem;margin:10px 0 8px}
  .card p{color:var(--muted);font-size:.97rem}

  /* steps */
  .steps{display:grid;gap:16px}
  @media(min-width:820px){.steps{grid-template-columns:repeat(5,1fr)}}
  .step{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px}
  .dark .step{background:rgba(246,243,234,.06);border-color:rgba(246,243,234,.14)}
  .step .n{width:34px;height:34px;border-radius:9px;background:var(--green);color:var(--gold);display:grid;place-items:center;font-family:'Fraunces',serif;font-weight:600;margin-bottom:12px}
  .dark .step .n{background:var(--gold);color:var(--green-deep)}
  .step h4{font-size:1.05rem;margin-bottom:6px}
  .dark .step h4{color:#fff}
  .step p{font-size:.9rem;color:var(--muted)}
  .dark .step p{color:rgba(246,243,234,.74)}

  /* offers */
  .offers{display:grid;gap:22px;grid-template-columns:1fr;align-items:stretch}
  @media(min-width:880px){.offers{grid-template-columns:repeat(3,1fr)}}
  .offer{background:#fff;border:1px solid var(--line);border-radius:20px;padding:30px;display:flex;flex-direction:column}
  .offer.featured{border:2px solid var(--gold);box-shadow:var(--shadow);position:relative}
  .offer.featured::before{content:"Le plus utile pour tester";position:absolute;top:-12px;left:24px;background:var(--gold);color:var(--green-deep);font-size:.7rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;padding:5px 12px;border-radius:999px}
  .offer .tier{font-size:.76rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--gold-deep)}
  .offer h3{font-size:1.35rem;margin:8px 0 4px}
  .offer .price{font-family:'Fraunces',serif;font-size:1.25rem;color:var(--green);margin-bottom:14px}
  .offer p.desc{color:var(--muted);font-size:.95rem;margin-bottom:16px}
  .offer ul{list-style:none;display:grid;gap:9px;margin-bottom:22px}
  .offer li{display:flex;gap:10px;font-size:.93rem}
  .offer li::before{content:"✓";color:var(--gold-deep);font-weight:700;flex:none}
  .offer .btn{margin-top:auto;width:100%}

  /* faq */
  .faq{display:grid;gap:14px;max-width:820px;margin:0 auto}
  details{background:#fff;border:1px solid var(--line);border-radius:14px;padding:4px 22px}
  details summary{cursor:pointer;list-style:none;padding:18px 0;font-weight:600;font-size:1.02rem;display:flex;justify-content:space-between;gap:16px;align-items:center}
  details summary::-webkit-details-marker{display:none}
  details summary::after{content:"+";color:var(--gold-deep);font-size:1.3rem;font-weight:600;flex:none}
  details[open] summary::after{content:"–"}
  details p{padding:0 0 20px;color:var(--muted);font-size:.97rem}

  /* diagnostic CTA */
  .diag .wrap{padding:74px 24px;text-align:center}
  .diag h2{color:#fff;font-size:clamp(1.7rem,3.6vw,2.6rem);margin-bottom:14px}
  .diag p{color:rgba(246,243,234,.82);max-width:54ch;margin:0 auto 26px}
  .diag .cta-row{display:flex;gap:12px;flex-wrap:wrap;justify-content:center}

  footer{background:var(--green-deep);color:rgba(246,243,234,.66);font-size:.88rem}
  footer .wrap{padding:48px 24px 32px;display:grid;gap:26px;grid-template-columns:1fr}
  @media(min-width:760px){footer .wrap{grid-template-columns:2fr 1fr 1fr}}
  footer h4{color:var(--ivory);font-size:1rem;margin-bottom:10px}
  footer a{color:var(--gold);text-decoration:none}
  footer .bottom{border-top:1px solid rgba(246,243,234,.12);margin-top:8px;padding:18px 24px;text-align:center;font-size:.8rem;color:rgba(246,243,234,.5)}

  .lang{display:flex;gap:2px;align-items:center}
  .lang a{font-size:.78rem;font-weight:600;color:var(--muted);text-decoration:none;padding:4px 7px;border-radius:6px}
  .lang a.on{color:var(--green);background:rgba(18,63,51,.10)}
  .lang a:hover{color:var(--green)}