:root{
  --ink:#171717; --ink-2:#3a3f44; --muted:#5f666d;
  --bg:#fbfbf9; --alt:#f1f2ef; --line:#e3e5e0;
  --teal:#00c2c4; --teal-d:#007c7e; --teal-dd:#00595b;
  --r:14px; --wrap:1140px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font:17px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--ink-2);background:var(--bg);-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--teal-d)}
a:hover{color:var(--teal-dd)}
h1,h2,h3{color:var(--ink);line-height:1.15;margin:0 0 .5em;letter-spacing:-.02em}
h1{font-size:clamp(2.1rem,4.6vw,3.4rem)}
h2{font-size:clamp(1.55rem,3vw,2.2rem)}
h3{font-size:1.2rem;letter-spacing:-.01em}
p{margin:0 0 1em}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px}
.narrow{max-width:760px}
.skip{position:absolute;left:-999px;top:0;background:#fff;color:var(--ink);padding:10px 14px;z-index:100}
.skip:focus{left:10px;top:10px}
:focus-visible{outline:3px solid var(--teal);outline-offset:2px}

/* En-tête */
.site-header{background:var(--ink);position:sticky;top:0;z-index:50;border-bottom:1px solid #2a2a2a}
.bar{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:72px}
.brand img{height:52px;width:auto}
.nav{display:flex;align-items:center;gap:6px}
.nav a{color:#e8ebe9;text-decoration:none;padding:8px 12px;border-radius:8px;font-size:.95rem;font-weight:500}
.nav a:hover{color:#fff;background:#262626}
.nav a[aria-current=page]{color:var(--teal)}
.nav a.btn{color:var(--ink);margin-left:8px}
.burger{display:none;background:none;border:0;padding:10px;cursor:pointer}
.burger span{display:block;width:24px;height:2px;background:#fff;margin:5px 0;transition:.2s}

/* Boutons */
.btn{display:inline-block;background:var(--teal);color:var(--ink);font-weight:700;text-decoration:none;padding:14px 26px;border-radius:999px;border:0;font-size:1rem;cursor:pointer;transition:background .15s,transform .15s;font-family:inherit}
.btn:hover{background:#26d6d8;color:var(--ink);transform:translateY(-1px)}
.btn-sm{padding:9px 18px;font-size:.92rem}
.btn-ghost{background:transparent;color:#fff;box-shadow:inset 0 0 0 2px #ffffff55}
.btn-ghost:hover{background:#ffffff14;color:#fff}
.btn-ghost-dark{background:transparent;color:var(--ink);box-shadow:inset 0 0 0 2px var(--ink)}
.btn-ghost-dark:hover{background:var(--ink);color:#fff}

/* Hero */
.hero{padding:56px 0 64px;background:linear-gradient(180deg,var(--alt),var(--bg))}
.hero-in{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.eyebrow{color:var(--teal-d);font-weight:700;font-size:.85rem;letter-spacing:.09em;text-transform:uppercase;margin-bottom:14px}
.lead{font-size:1.2rem;color:var(--muted);max-width:620px}
.act{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0}
.facts{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:8px 22px;font-size:.95rem;font-weight:600;color:var(--ink)}
.facts li::before{content:"✓";color:var(--teal-d);margin-right:8px;font-weight:800}
.hero-img img{border-radius:var(--r);box-shadow:0 24px 60px -24px #0006;aspect-ratio:1/1;object-fit:cover;width:100%}

/* Sections */
.sec{padding:76px 0}
.sec.alt{background:var(--alt)}
.sec-head{margin-bottom:36px;max-width:720px}
.sec-head.row{max-width:none;display:flex;justify-content:space-between;align-items:end;gap:20px;flex-wrap:wrap}
.more{font-weight:700;text-decoration:none}
.cards{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;text-decoration:none;color:inherit;transition:box-shadow .2s,transform .2s}
.card:hover{box-shadow:0 18px 40px -20px #0004;transform:translateY(-3px)}
.card-img{aspect-ratio:16/10;width:100%;object-fit:cover}
.card-body{padding:24px 26px 28px}
.card-body p{color:var(--muted)}
.card .more{color:var(--teal-d)}
.steps{list-style:none;counter-reset:s;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:0;margin:0}
.steps li{counter-increment:s;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:26px}
.steps li::before{content:"0" counter(s);display:block;font-weight:800;font-size:1.6rem;color:var(--teal-d);margin-bottom:10px}
.steps p{margin:0;color:var(--muted);font-size:.97rem}
.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.gallery.big{grid-template-columns:repeat(3,1fr);gap:24px}
.gallery figure{margin:0}
.gallery .g{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:var(--r)}
.gallery figcaption{font-size:.9rem;color:var(--muted);margin-top:8px}
.zoom{all:unset;display:block;cursor:zoom-in;width:100%}
.zoom:focus-visible{outline:3px solid var(--teal);outline-offset:3px;border-radius:var(--r)}
.zoom:hover .g{filter:brightness(.93)}
.about{display:grid;grid-template-columns:.8fr 1.2fr;gap:56px}
.prose p{color:var(--ink-2)}
.prose h2{font-size:1.4rem;margin-top:1.6em}

/* Pages intérieures */
.page-head{background:var(--alt);padding:52px 0 44px;border-bottom:1px solid var(--line)}
.crumbs{font-size:.9rem;color:var(--muted);margin-bottom:12px}
.crumbs a{color:var(--muted)}
.split{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center}
.photo img{border-radius:var(--r);width:100%;max-height:560px;object-fit:cover}
.ticks{list-style:none;padding:0;margin:0}
.ticks li{padding:0 0 14px 34px;position:relative}
.ticks li::before{content:"✓";position:absolute;left:0;top:0;width:24px;height:24px;border-radius:50%;background:var(--teal);color:var(--ink);font-weight:800;font-size:.85rem;display:grid;place-items:center;line-height:1}
.trio{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.trio img{border-radius:var(--r);aspect-ratio:4/5;object-fit:cover;width:100%;margin-bottom:16px}
.trio p{color:var(--muted)}

/* Bandeau CTA */
.band{background:var(--ink);color:#d8dcda;padding:56px 0}
.band h2{color:#fff;margin-bottom:.3em}
.band p{margin:0;color:#b9bfbc}
.band-in{display:flex;justify-content:space-between;align-items:center;gap:28px;flex-wrap:wrap}
.band-act{display:flex;gap:12px;flex-wrap:wrap}

/* Contact */
.contact{display:grid;grid-template-columns:1.4fr .8fr;gap:48px;align-items:start}
.form{display:grid;gap:18px}
.form label{display:grid;gap:6px;font-weight:600;color:var(--ink);font-size:.95rem}
.form input,.form select,.form textarea{font:inherit;padding:12px 14px;border:1px solid #c9ccc6;border-radius:10px;background:#fff;color:var(--ink);width:100%}
.form input:focus,.form select:focus,.form textarea:focus{outline:3px solid #00c2c455;border-color:var(--teal-d)}
.two{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.check{display:block!important;font-weight:400!important;color:var(--muted)!important;font-size:.9rem!important}
.check input{width:auto;margin-right:8px}
.hp{position:absolute;left:-9999px;height:0;overflow:hidden}
.form .btn{justify-self:start}
.side{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:28px}
.side h2{font-size:1.3rem}
.side p{margin-bottom:1.1em}

/* Pied de page */
.site-footer{background:var(--ink);color:#b9bfbc;padding:56px 0 0;font-size:.95rem}
.foot{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:40px}
.foot-logo{height:64px;width:auto;margin-bottom:14px}
.site-footer h3{color:#fff;font-size:1rem;margin-bottom:.8em}
.site-footer a{color:#b9bfbc;text-decoration:none}
.site-footer a:hover{color:var(--teal)}
.site-footer ul{list-style:none;padding:0;margin:0;display:grid;gap:6px}
.legal{border-top:1px solid #2a2a2a;margin-top:40px;padding-top:20px;padding-bottom:24px;font-size:.85rem;color:#7d8481}

/* FAQ */
.faq details{border-bottom:1px solid var(--line);padding:4px 0}
.faq summary{cursor:pointer;font-weight:600;color:var(--ink);padding:14px 30px 14px 0;list-style:none;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:4px;top:10px;font-size:1.4rem;color:var(--teal-d);transition:transform .2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq p{margin:0 0 16px;color:var(--muted)}

/* Visionneuse */
dialog{border:0;padding:0;background:transparent;max-width:min(92vw,900px);max-height:92vh;overflow:visible}
dialog::backdrop{background:#000c}
dialog img{max-height:88vh;width:auto;margin:0 auto;border-radius:10px}
.lb-close{position:absolute;top:-14px;right:-14px;width:40px;height:40px;border-radius:50%;border:0;background:#fff;color:var(--ink);font-size:1.5rem;line-height:1;cursor:pointer}

@media (max-width:900px){
  .hero-in,.split,.about,.contact{grid-template-columns:1fr;gap:32px}
  .cards,.trio{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr 1fr}
  .gallery{grid-template-columns:1fr 1fr}
  .gallery.big{grid-template-columns:1fr 1fr}
  .foot{grid-template-columns:1fr 1fr}
  .foot>div:first-child{grid-column:1/-1}
  .hero-img img{aspect-ratio:4/3}
  .sec{padding:56px 0}
  .burger{display:block}
  .nav{display:none;position:absolute;top:100%;left:0;right:0;background:var(--ink);flex-direction:column;align-items:stretch;padding:12px 20px 20px;border-bottom:1px solid #2a2a2a}
  .nav.open{display:flex}
  .nav a{padding:12px}
  .nav a.btn{margin:8px 0 0;text-align:center}
  .burger[aria-expanded=true] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .burger[aria-expanded=true] span:nth-child(2){opacity:0}
  .burger[aria-expanded=true] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
}
@media (max-width:540px){
  body{font-size:16px}
  .steps,.two{grid-template-columns:1fr}
  .gallery.big{grid-template-columns:1fr}
  .foot{grid-template-columns:1fr}
  .brand img{height:44px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}