:root{
    --green-deep:#26332A;
    --stone:#E7E1D3;
    --brick:#A6543A;
    --sage:#9CAF88;
    --ink:#1B1F1A;
    --paper:#FAF8F3;
  }
  *{box-sizing:border-box;margin:0;padding:0;}
  body{
    font-family:'Work Sans', sans-serif;
    color:var(--ink);
    background:var(--stone);
    line-height:1.55;
  }
  h1,h2,h3{
    font-family:'Fraunces', serif;
    font-weight:500;
    letter-spacing:-0.01em;
  }
  a{color:inherit;text-decoration:none;}
  .wrap{max-width:1120px;margin:0 auto;padding:0 32px;}

  /* NAV */
  header{
    position:sticky;top:0;z-index:10;
    background:var(--stone);
    border-bottom:1px solid rgba(27,31,26,0.12);
  }
  nav.wrap{
    display:flex;align-items:center;justify-content:space-between;
    padding-top:20px;padding-bottom:20px;
  }
  .logo{font-family:'Fraunces',serif;font-size:22px;font-weight:600;display:flex;align-items:center;gap:10px;}
  .logo img{height:42px;width:auto;display:block;}
  .navlinks{display:flex;gap:36px;font-size:14px;}
  .navlinks a{position:relative;padding-bottom:4px;}
  .navlinks a:hover{color:var(--brick);}
  .nav-cta{
    background:var(--green-deep);color:var(--paper);
    padding:10px 20px;border-radius:2px;font-size:14px;
  }

  /* HERO */
  .hero{
    background:var(--green-deep);color:var(--paper);
    padding:90px 0 0 0;
    overflow:hidden;
  }
  .hero-grid{
    display:grid;grid-template-columns:1.1fr 0.9fr;gap:48px;align-items:end;
  }
  .hero-eyebrow{
    font-size:14px;color:var(--sage);margin-bottom:22px;
  }
  .hero h1{
    font-size:56px;line-height:1.05;font-weight:400;max-width:560px;
  }
  .hero h1 em{font-style:italic;color:var(--sage);}
  .hero p{
    margin-top:24px;max-width:420px;font-size:16px;color:rgba(250,248,243,0.78);
  }
  .hero-actions{margin-top:36px;display:flex;gap:16px;}
  .btn-primary{
    background:var(--brick);color:var(--paper);padding:14px 26px;
    font-size:15px;border-radius:2px;
  }
  .btn-ghost{
    border:1px solid rgba(250,248,243,0.4);padding:14px 26px;
    font-size:15px;border-radius:2px;
  }
  .hero-photo{
    background-image:url('images/zone-immersive.jpg');
    background-size:cover;background-position:center;
    aspect-ratio:4/5;
    align-self:end;
  }
  .hero-strip{
    margin-top:56px;padding:20px 0;border-top:1px solid rgba(250,248,243,0.18);
    display:flex;gap:48px;font-size:13px;color:rgba(250,248,243,0.65);
  }

  /* INTRO */
  .intro{padding:100px 0;}
  .intro-grid{display:grid;grid-template-columns:0.4fr 0.6fr;gap:60px;}
  .intro-label{font-size:14px;color:var(--brick);}
  .intro h2{font-size:34px;font-weight:400;max-width:520px;}

  /* CATALOGUE / CARNET */
  .carnet{background:var(--paper);padding:100px 0;}
  .carnet-head{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:56px;}
  .carnet-head h2{font-size:34px;font-weight:400;}
  .carnet-head p{font-size:14px;color:rgba(27,31,26,0.6);max-width:280px;}
  .entries{border-top:1px solid rgba(27,31,26,0.15);}
  .entry{
    display:grid;grid-template-columns:60px 1fr 1fr 140px;gap:24px;
    padding:26px 0;border-bottom:1px solid rgba(27,31,26,0.15);
    align-items:center;
  }
  .entry .num{font-family:'Fraunces',serif;font-size:14px;color:var(--brick);}
  .entry .name{font-family:'Fraunces',serif;font-size:20px;}
  .entry .desc{font-size:14px;color:rgba(27,31,26,0.65);}
  .entry .tag{
    justify-self:end;font-size:12px;background:var(--sage);color:var(--green-deep);
    padding:6px 12px;border-radius:20px;
  }

  /* ZONES */
  .zones{padding:100px 0;}
  .zones-grid{display:grid;grid-template-columns:0.5fr 0.5fr;gap:60px;align-items:center;}
  .zones h2{font-size:34px;font-weight:400;margin-bottom:20px;}
  .zones-list{display:flex;flex-wrap:wrap;gap:10px 14px;margin-top:28px;}
  .zones-list span{
    font-size:14px;padding:8px 16px;border:1px solid rgba(27,31,26,0.25);border-radius:20px;
  }
  .zones-map{
    background:var(--green-deep);aspect-ratio:1/1;border-radius:4px;
    overflow:hidden;padding:20px;
  }
  .zones-map svg{width:100%;height:100%;display:block;}

  /* CTA */
  .cta{
    background:var(--green-deep);color:var(--paper);padding:110px 0;text-align:center;
  }
  .cta h2{font-size:40px;font-weight:400;max-width:600px;margin:0 auto 28px auto;}
  .cta .btn-primary{display:inline-block;}

  footer{background:var(--paper);padding:48px 0;font-size:13px;color:rgba(27,31,26,0.55);}
  .footer-grid{display:flex;justify-content:space-between;align-items:center;}

  @media(max-width:800px){
    .hero-grid,.intro-grid,.zones-grid{grid-template-columns:1fr;}
    .hero-photo{aspect-ratio:16/9;}
    .hero h1{font-size:38px;}
    .entry{grid-template-columns:36px 1fr;row-gap:6px;}
    .entry .desc,.entry .tag{grid-column:2;justify-self:start;}
  }

  /* --- PAGES INTERIEURES --- */
  .page-hero{
    background:var(--green-deep);color:var(--paper);
    padding:70px 0 60px 0;
  }
  .page-hero .hero-eyebrow{margin-bottom:16px;}
  .page-hero h1{font-size:44px;line-height:1.1;font-weight:400;max-width:640px;}
  .page-hero p{margin-top:20px;max-width:480px;font-size:16px;color:rgba(250,248,243,0.78);}

  .section{padding:90px 0;}
  .section.alt{background:var(--paper);}
  .section-head{margin-bottom:48px;max-width:560px;}
  .section-head .intro-label{margin-bottom:14px;}
  .section-head h2{font-size:32px;font-weight:400;}

  .two-col{display:grid;grid-template-columns:1fr 1fr;gap:48px;}
  .three-col{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;}

  .card{
    background:var(--paper);border:1px solid rgba(27,31,26,0.12);
    padding:32px;border-radius:4px;
  }
  .card h3{font-family:'Fraunces',serif;font-size:20px;font-weight:500;margin-bottom:12px;}
  .card p{font-size:14px;color:rgba(27,31,26,0.68);}
  .section.alt .card{background:var(--stone);border-color:rgba(27,31,26,0.1);}

  .plan-row{
    display:grid;grid-template-columns:1fr 2fr 140px;gap:24px;align-items:start;
    padding:28px 0;border-bottom:1px solid rgba(27,31,26,0.15);
  }
  .plan-row:first-child{border-top:1px solid rgba(27,31,26,0.15);}
  .plan-row h3{font-family:'Fraunces',serif;font-size:20px;font-weight:500;}
  .plan-row p{font-size:14px;color:rgba(27,31,26,0.65);}
  .plan-row .freq{
    justify-self:end;font-size:12px;background:var(--sage);color:var(--green-deep);
    padding:6px 12px;border-radius:20px;height:fit-content;
  }

  .gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;}
  .gallery .ph{
    aspect-ratio:4/3;background:var(--green-deep);border-radius:4px;
    overflow:hidden;position:relative;margin:0;
  }
  .gallery .ph.wide{grid-column:span 2;}
  .gallery .ph img{
    width:100%;height:100%;object-fit:cover;display:block;
  }
  .gallery .ph figcaption{
    position:absolute;left:0;right:0;bottom:0;
    background:linear-gradient(0deg, rgba(27,31,26,0.75), rgba(27,31,26,0));
    color:var(--paper);font-size:13px;padding:26px 16px 12px 16px;
  }

  .filters{display:flex;gap:10px;margin-bottom:40px;flex-wrap:wrap;}
  .filters span{
    font-size:13px;padding:8px 16px;border:1px solid rgba(27,31,26,0.25);border-radius:20px;
    cursor:default;
  }
  .filters span.active{background:var(--green-deep);color:var(--paper);border-color:var(--green-deep);}

  .contact-grid{display:grid;grid-template-columns:0.9fr 1.1fr;gap:60px;}
  .contact-info h3{font-family:'Fraunces',serif;font-size:20px;font-weight:500;margin-bottom:8px;margin-top:28px;}
  .contact-info h3:first-child{margin-top:0;}
  .contact-info p{font-size:14px;color:rgba(27,31,26,0.68);}
  .contact-info a{color:var(--brick);}

  form.contact-form{display:flex;flex-direction:column;gap:18px;}
  form.contact-form label{font-size:13px;color:rgba(27,31,26,0.6);display:block;margin-bottom:6px;}
  form.contact-form input, form.contact-form select, form.contact-form textarea{
    width:100%;padding:13px 14px;border:1px solid rgba(27,31,26,0.25);
    border-radius:2px;font-family:'Work Sans',sans-serif;font-size:14px;
    background:var(--paper);color:var(--ink);
  }
  form.contact-form textarea{resize:vertical;min-height:110px;}
  form.contact-form button{
    background:var(--brick);color:var(--paper);padding:14px 26px;
    font-size:15px;border-radius:2px;border:none;cursor:pointer;align-self:flex-start;
    font-family:'Work Sans',sans-serif;
  }

  @media(max-width:800px){
    .two-col,.three-col,.contact-grid{grid-template-columns:1fr;}
    .gallery{grid-template-columns:1fr 1fr;}
    .gallery .ph.wide{grid-column:span 2;}
    .plan-row{grid-template-columns:1fr;}
    .plan-row .freq{justify-self:start;}
    .page-hero h1{font-size:32px;}
  }