:root{
  --paper:#F4F4F6; --white:#FFFFFF; --ink:#111216; --ink-2:#44464F; --ink-3:#72747E;
  --plum:#2442C9; --plum-soft:#E6EAFB; --amber:#2442C9; --line:#E1E2E7; --header-bg:rgba(255,255,255,.95);
  --display:"Syne",system-ui,sans-serif; --body:"Work Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --wrap:1220px; --radius:2px;
}
/* base commune */

*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--body);font-size:17px;line-height:1.7}
img{max-width:100%;height:auto;display:block}
a{color:var(--plum)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:2px solid var(--amber);outline-offset:3px}
h1,h2,h3{font-family:var(--display);font-weight:600;line-height:1.2;letter-spacing:-.005em;text-wrap:balance;margin:0}
h1{font-size:clamp(34px,5vw,58px)}
h2{font-size:clamp(27px,3.4vw,40px)}
h3{font-size:22px}
p{margin:0}
.wrap{max-width:var(--wrap);margin:0 auto;padding-inline:20px}
.eyebrow{font-size:13px;text-transform:uppercase;letter-spacing:.14em;color:var(--amber);font-weight:700}
.prose{max-width:68ch;display:flex;flex-direction:column;gap:18px}
.prose h2{margin-top:22px}
.prose h3{margin-top:10px}
.prose ul{margin:0;padding-left:22px;display:flex;flex-direction:column;gap:6px}

/* En-tête */
.site-header{position:sticky;top:0;z-index:50;background:var(--header-bg);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:70px}
.brand{font-family:var(--display);font-size:22px;font-weight:700;color:var(--ink);text-decoration:none;line-height:1.1}
.brand small{display:block;font-family:var(--body);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3);font-weight:500}
.nav{display:flex;gap:26px;align-items:center}
.nav a{color:var(--ink);text-decoration:none;font-weight:500;font-size:15px}
.nav a[aria-current="page"],.nav a:hover{color:var(--plum)}
.phone-top{font-weight:700;color:var(--white);background:var(--plum);text-decoration:none;padding:9px 16px;border-radius:var(--radius);white-space:nowrap}
.burger{display:none;background:none;border:0;padding:8px;cursor:pointer}
.burger span{display:block;width:26px;height:2px;background:var(--ink);margin:6px 0;transition:transform .2s,opacity .2s}
@media (max-width:900px){
  .burger{display:block}
  .phone-top{display:none}
  .nav{position:fixed;inset:70px 0 auto 0;flex-direction:column;align-items:flex-start;gap:0;background:var(--white);border-bottom:1px solid var(--line);padding:8px 20px 18px;transform:translateY(-130%);transition:transform .25s}
  .nav.open{transform:none}
  .nav a{padding:12px 0;width:100%;border-bottom:1px solid var(--line)}
  .burger[aria-expanded="true"] span:nth-child(1){transform:translateY(8px) rotate(45deg)}
  .burger[aria-expanded="true"] span:nth-child(2){opacity:0}
  .burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}
}

/* Hero */
.hero{padding-block:64px 56px;background:var(--white);border-bottom:1px solid var(--line)}
.hero .wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.hero-text{display:flex;flex-direction:column;gap:20px}
.hero-text .lead{font-size:19px;color:var(--ink-2);max-width:54ch}
.hero-media{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.hero-media img{border-radius:var(--radius);background:var(--paper)}
.hero-media img:first-child{grid-row:span 2;height:100%;object-fit:cover}
.actions{display:flex;flex-wrap:wrap;gap:12px}
.btn{display:inline-block;font:inherit;font-weight:700;text-decoration:none;padding:13px 22px;border-radius:var(--radius);border:1.5px solid var(--plum);cursor:pointer}
.btn-primary{background:var(--plum);color:var(--white)}
.btn-ghost{background:transparent;color:var(--plum)}
@media (max-width:900px){.hero .wrap{grid-template-columns:1fr}.hero{padding-block:40px}}

/* Sections */
.section{padding-block:72px}
.section.alt{background:var(--white);border-block:1px solid var(--line)}
.section-head{display:flex;flex-direction:column;gap:10px;margin-bottom:34px;max-width:70ch}
.section-head p{color:var(--ink-2)}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.cards.two{grid-template-columns:repeat(2,1fr)}
.card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column}
.section.alt .card{background:var(--paper)}
.card img{aspect-ratio:1/1;object-fit:cover;width:100%;background:var(--paper)}
.card-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body p{color:var(--ink-2);font-size:16px}
.card-body a.more{margin-top:auto;font-weight:700;text-decoration:none}
@media (max-width:900px){.cards,.cards.two{grid-template-columns:1fr}}
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.split figure{margin:0;display:flex;flex-direction:column;gap:8px}
.split figcaption{font-size:14px;color:var(--ink-3)}
@media (max-width:900px){.split{grid-template-columns:1fr}}
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:22px;counter-reset:s}
.steps li{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:22px;counter-increment:s;display:flex;flex-direction:column;gap:8px}
.steps li::before{content:counter(s,decimal-leading-zero);font-family:var(--display);font-size:30px;color:var(--amber)}
@media (max-width:900px){.steps{grid-template-columns:1fr}}
.formats{display:flex;flex-wrap:wrap;gap:8px;margin-top:4px}
.formats span{font-size:14px;font-weight:700;border:1px solid var(--line);background:var(--white);border-radius:4px;padding:3px 10px}
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.gallery button{padding:0;border:0;background:var(--white);cursor:zoom-in;border-radius:var(--radius);overflow:hidden}
.gallery img{aspect-ratio:1/1;object-fit:cover;width:100%;transition:transform .3s}
.gallery button:hover img{transform:scale(1.03)}
@media (max-width:600px){.gallery{grid-template-columns:repeat(2,1fr)}}
.note{background:var(--plum-soft);border-radius:var(--radius);padding:18px 22px;color:var(--ink)}

/* FAQ */
.faq{display:flex;flex-direction:column;gap:12px;max-width:860px}
.faq details{background:var(--white);border:1px solid var(--line);border-radius:var(--radius)}
.faq summary{cursor:pointer;list-style:none;padding:18px 52px 18px 22px;font-weight:700;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);font-size:24px;color:var(--plum)}
.faq details[open] summary::after{content:"–"}
.faq .answer{padding:0 22px 20px;color:var(--ink-2);display:flex;flex-direction:column;gap:12px}

/* Contact */
.contact .wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:48px}
.contact-info{display:flex;flex-direction:column;gap:16px}
.contact-info .big{font-family:var(--display);font-size:28px;color:var(--plum);text-decoration:none}
form{display:grid;grid-template-columns:1fr 1fr;gap:16px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.field{display:flex;flex-direction:column;gap:6px}
.field.full{grid-column:1/-1}
label{font-size:14px;font-weight:700}
input,select,textarea{font:inherit;font-size:16px;padding:11px 12px;border:1px solid #CFCCD6;border-radius:4px;background:var(--white);color:var(--ink);width:100%}
textarea{min-height:140px;resize:vertical}
.form-status{grid-column:1/-1;font-weight:700}
.form-status.ok{color:#1F6B45}
.form-status.err{color:#9B2C2C}
@media (max-width:900px){.contact .wrap{grid-template-columns:1fr}form{grid-template-columns:1fr}}

/* Pied de page */
.site-footer{background:var(--ink);color:#D9D6E0;padding-block:48px 28px;font-size:15px}
.site-footer .wrap{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.site-footer a{color:#FFFFFF}
.site-footer h3{font-size:18px;color:#FFFFFF;margin-bottom:10px}
.site-footer ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px}
.site-footer .legal{grid-column:1/-1;border-top:1px solid #3A3744;padding-top:18px;color:#A8A4B3;font-size:13px}
@media (max-width:900px){.site-footer .wrap{grid-template-columns:1fr}}

/* Boutons flottants */
.call-mobile{display:none;position:fixed;right:16px;bottom:16px;z-index:60;width:56px;height:56px;border-radius:50%;background:var(--plum);color:#fff;align-items:center;justify-content:center;box-shadow:0 6px 18px rgba(29,27,36,.25)}
.to-top{position:fixed;right:16px;bottom:16px;z-index:59;width:46px;height:46px;border-radius:50%;border:1px solid var(--line);background:var(--white);color:var(--ink);cursor:pointer;opacity:0;pointer-events:none;transform:translateY(10px);transition:opacity .2s,transform .2s;font-size:20px}
.to-top.show{opacity:1;pointer-events:auto;transform:none}
@media (max-width:900px){.call-mobile{display:flex}.to-top{bottom:84px}}

/* Visionneuse */
.lightbox{position:fixed;inset:0;z-index:100;background:rgba(20,18,26,.92);display:flex;align-items:center;justify-content:center;padding:24px}
.lightbox[hidden]{display:none}
.lightbox img{max-height:86vh;width:auto;border-radius:4px}
.lightbox button{position:absolute;top:16px;right:16px;background:#fff;border:0;border-radius:50%;width:44px;height:44px;font-size:22px;cursor:pointer}
.breadcrumb{font-size:14px;color:var(--ink-3)}
.breadcrumb a{color:var(--ink-3)}

/* Variantes de hero */
.hero-wide .wrap{grid-template-columns:1fr;gap:32px}
.hero-wide .hero-text{max-width:820px}
.hero-wide .hero-media{grid-template-columns:repeat(3,1fr)}
.hero-wide .hero-media img:first-child{grid-row:auto}
.hero-wide .hero-media img{aspect-ratio:4/3;object-fit:cover;width:100%;height:auto}
.hero-mosaic .hero-media{grid-template-columns:1fr 1fr;grid-auto-rows:1fr}
.hero-mosaic .hero-media img,.hero-mosaic .hero-media img:first-child{grid-row:auto;aspect-ratio:1/1;object-fit:cover;width:100%;height:100%}
@media (max-width:600px){.hero-wide .hero-media{grid-template-columns:1fr 1fr}.hero-wide .hero-media img:nth-child(3){display:none}}

.lightbox .lb-close{position:absolute;top:16px;right:16px}
.lightbox .lb-nav{position:absolute;top:50%;transform:translateY(-50%);width:52px;height:52px;border-radius:50%;background:rgba(255,255,255,.92);border:0;font-size:34px;line-height:1;cursor:pointer;color:#111}
.lightbox .lb-prev{left:16px;right:auto}
.lightbox .lb-next{right:16px}
.lightbox .lb-count{position:absolute;bottom:14px;left:0;right:0;text-align:center;color:#fff;font-size:14px;margin:0}
.lightbox button:focus-visible{outline:2px solid #fff;outline-offset:3px}
@media (max-width:600px){.lightbox .lb-nav{width:42px;height:42px;font-size:28px;top:auto;bottom:40px;transform:none}}

/* Guides */
.guides-list{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.guide-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;text-decoration:none;color:inherit}
.guide-card img{aspect-ratio:4/3;object-fit:cover;width:100%;background:var(--paper)}
.guide-card .gc-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:8px}
.guide-card h2{font-size:21px}
.guide-card p{color:var(--ink-2);font-size:15.5px}
.guide-card:hover h2{color:var(--plum)}
@media (max-width:900px){.guides-list{grid-template-columns:1fr}}
.article-meta{color:var(--ink-3);font-size:14px}
.related{background:var(--plum-soft);border-radius:var(--radius);padding:20px 24px;display:flex;flex-direction:column;gap:8px}
.related ul{margin:0;padding-left:20px}
.cta-box{border:1px solid var(--line);background:var(--white);border-radius:var(--radius);padding:22px 24px;display:flex;flex-direction:column;gap:12px;align-items:flex-start}
.article-figure{margin:8px 0;display:flex;flex-direction:column;gap:6px}
.article-figure img{border-radius:var(--radius);width:100%;max-width:560px;background:var(--paper)}
.article-figure figcaption{font-size:14px;color:var(--ink-3)}
.prose.article h2{margin-top:26px}

h1,h2,h3{font-weight:800;letter-spacing:-.02em}
h1{font-size:clamp(34px,5.4vw,66px)}
.eyebrow{color:var(--ink-3)}
.hero-wide .hero-media img{object-fit:contain;background:#fff;border:1px solid var(--line)}
.card img{object-fit:contain;background:#fff}
.gallery img{object-fit:contain;background:#fff}
.btn{border-radius:0}