:root{
  --ink:#1A1512; --cream:#FAF6F0; --accent:#E8590C; --accent-text:#B93F06;
  --ink-soft:rgba(26,21,18,.72); --line:rgba(26,21,18,.16);
  --line-dark:rgba(250,246,240,.22); --cream-soft:rgba(250,246,240,.78);
  --max:1200px; --pad:clamp(20px,5vw,56px);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--cream);color:var(--ink);font-family:'Work Sans',system-ui,-apple-system,sans-serif;font-size:18px;line-height:1.6;-webkit-font-smoothing:antialiased}
h1,h2,h3{font-family:'Space Grotesk',system-ui,sans-serif;font-weight:900;letter-spacing:-.03em;line-height:1.02;text-wrap:balance}
a{color:inherit}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px}
.skip{position:absolute;left:-999px;top:8px;background:var(--ink);color:var(--cream);padding:10px 16px;z-index:10}
.skip:focus{left:8px}
.wrap{max-width:var(--max);margin:0 auto;padding-inline:var(--pad)}
.tag{font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:14px;letter-spacing:.12em;text-transform:uppercase;color:var(--accent-text)}
.dark .tag,.hero .tag{color:var(--accent)}
.orange .tag{color:var(--ink)}

/* logo mark (em-based) */
.mark{display:inline-flex;align-items:flex-end;line-height:1;text-decoration:none;font-size:34px}
.mark .l{font-family:'Space Grotesk',sans-serif;font-weight:900;line-height:1;letter-spacing:-.03em}
.mark .i{position:relative;display:inline-block;width:.353em;height:1em}
.mark .stem{position:absolute;left:.109em;bottom:.153em;width:.135em;height:.48em;background:currentColor}
.mark svg{position:absolute;width:.52em;height:.52em;left:-.054em;top:-.133em}

/* header */
.top{position:absolute;inset:0 0 auto 0;z-index:5;color:var(--cream)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;padding-block:26px}
.nav{display:flex;align-items:center;gap:clamp(16px,3vw,36px);font-size:16px}
.nav a{text-decoration:none}
.nav a:not(.btn):hover{color:var(--accent)}
@media(max-width:720px){.nav a:not(.btn){display:none}}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 24px;font-weight:600;font-size:16px;text-decoration:none;border:2px solid transparent;transition:transform .15s,background .15s,color .15s}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--accent);color:var(--ink)}
.btn-primary:hover{background:#ff6a1f}
.btn-ghost{border-color:var(--line-dark);color:var(--cream)}
.btn-ghost:hover{border-color:var(--cream)}
.btn-ink{background:var(--ink);color:var(--cream)}
.btn-ink-ghost{border-color:var(--ink);color:var(--ink)}
.btn-ink-ghost:hover{background:var(--ink);color:var(--cream)}

/* hero */
.hero{background:var(--ink);color:var(--cream);position:relative;overflow:hidden;padding:180px 0 110px}
.hero h1{font-size:clamp(50px,9.4vw,132px);max-width:11ch;margin:22px 0 32px}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero p.lead{font-size:clamp(19px,2vw,24px);max-width:36ch;color:var(--cream-soft)}
.cta-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:40px}
.hero-arrow{position:absolute;right:-4%;bottom:-6%;width:min(52vw,640px);height:auto;pointer-events:none}
@media(max-width:720px){.hero{padding:140px 0 80px}.hero-arrow{width:90vw;right:-22%;bottom:-8%;opacity:.35}}

/* sections */
section{padding:clamp(72px,10vw,130px) 0}
h2{font-size:clamp(36px,5.4vw,68px);margin:14px 0 20px;max-width:16ch}
.intro{color:var(--ink-soft);max-width:52ch}

/* services */
.svc{margin-top:56px;border-bottom:2px solid var(--line)}
.svc-row{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr) 56px;gap:clamp(16px,4vw,56px);align-items:start;padding:36px 0;border-top:2px solid var(--line)}
.svc-row h3{font-size:clamp(26px,3.2vw,40px)}
.svc-row p{color:var(--ink-soft);max-width:46ch}
.svc-row svg{width:44px;height:44px;transition:transform .2s}
.svc-row:hover svg{transform:translate(4px,-4px)}
@media(max-width:760px){.svc-row{grid-template-columns:1fr 44px}.svc-row p{grid-column:1/2}.svc-row svg{grid-row:1;grid-column:2}}

/* dark band */
.dark{background:var(--ink);color:var(--cream)}
.dark .intro{color:var(--cream-soft)}
.points{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(24px,4vw,56px);margin-top:56px}
.point{border-top:2px solid var(--line-dark);padding-top:22px}
.point h3{font-size:26px;margin-bottom:10px}
.point p{color:var(--cream-soft);font-size:17px}
@media(max-width:820px){.points{grid-template-columns:1fr}}

/* method */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;margin-top:56px;border-top:2px solid var(--line);list-style:none}
.step{padding:30px 28px 34px 0;border-bottom:2px solid var(--line)}
.step .n{font-family:'Space Grotesk',sans-serif;font-weight:900;font-size:64px;line-height:1;color:var(--accent-text)}
.step h3{font-size:24px;margin:14px 0 8px}
.step p{color:var(--ink-soft);font-size:17px}
@media(max-width:900px){.steps{grid-template-columns:1fr 1fr}}
@media(max-width:600px){.steps{grid-template-columns:1fr}}

/* faq */
.faq{margin-top:48px;border-bottom:2px solid var(--line-dark);max-width:860px}
.faq details{border-top:2px solid var(--line-dark);padding:22px 0}
.faq summary{cursor:pointer;list-style:none;font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:clamp(20px,2.4vw,26px);display:flex;justify-content:space-between;gap:20px;letter-spacing:-.01em}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:'+';color:var(--accent);font-size:32px;line-height:1;transition:transform .3s ease;flex:0 0 auto}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{margin-top:14px;color:var(--cream-soft);max-width:60ch}

/* contact */
.orange{background:var(--accent);color:var(--ink)}
.orange h2{max-width:14ch;color:var(--cream)}
.orange .intro{color:var(--ink);font-size:20px}
.orange .btn-ink:hover{background:#000}

/* footer */
footer{background:var(--ink);color:var(--cream);padding:56px 0 40px}
footer .wrap{display:flex;flex-wrap:wrap;gap:24px 48px;justify-content:space-between;align-items:flex-end}
footer .mark{font-size:44px;margin-bottom:12px}
footer p{color:var(--cream-soft);font-size:16px}
footer nav{display:flex;flex-wrap:wrap;gap:8px 28px;font-size:16px}
footer nav a{text-decoration:none;color:var(--cream-soft)}
footer nav a:hover{color:var(--accent)}
.legal-note{width:100%;font-size:14px;color:rgba(250,246,240,.55);border-top:1px solid var(--line-dark);padding-top:22px;margin-top:8px}



/* legal page */
.legal{padding:150px 0 90px;max-width:760px}
.legal h1{font-size:clamp(36px,5vw,56px);margin-bottom:28px}
.legal h2{font-size:26px;margin:38px 0 10px;max-width:none}
.legal p,.legal li{color:var(--ink-soft);margin-bottom:10px}
.todo{background:rgba(232,89,12,.14);padding:1px 6px}

/* ---------- page devis ---------- */
.devis-hero{background:var(--ink);color:var(--cream);padding:150px 0 64px}
.devis-hero h1{font-size:clamp(40px,7vw,88px);margin:18px 0 20px;max-width:14ch}
.devis-hero .lead{font-size:clamp(18px,2vw,22px);max-width:40ch;color:var(--cream-soft)}
.devis-body{padding:clamp(40px,6vw,80px) 0 clamp(64px,9vw,120px)}
.devis-grid{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,.8fr);gap:clamp(28px,4vw,56px);align-items:start}
@media(max-width:900px){.devis-grid{grid-template-columns:1fr}}

.form-card{background:#fff;border:1px solid var(--line);padding:clamp(22px,4vw,44px);display:flex;flex-direction:column;gap:34px}
.form-card fieldset{border:0;min-width:0;display:flex;flex-direction:column;gap:14px}
.form-card legend{font-family:'Space Grotesk',sans-serif;font-weight:900;font-size:clamp(22px,2.6vw,28px);letter-spacing:-.02em;margin-bottom:6px;padding:0}
.hint{color:var(--ink-soft);font-size:15px;margin-top:-6px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.grid2 .full{grid-column:1/-1}
@media(max-width:600px){.grid2{grid-template-columns:1fr}}
.field{display:flex;flex-direction:column;gap:6px;min-width:0}
.field label{font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:15px}
.opt{font-weight:500;color:var(--ink-soft);font-family:'Work Sans',sans-serif;font-size:14px}
.field input,.field select,.field textarea{font:inherit;font-size:17px;color:var(--ink);background:var(--cream);border:2px solid var(--line);border-radius:0;padding:13px 14px;width:100%;min-width:0;min-height:50px}
.field textarea{resize:vertical;min-height:130px}
.field input:focus,.field select:focus,.field textarea:focus{outline:3px solid var(--accent);outline-offset:0;border-color:var(--ink)}
.field [aria-invalid="true"]{border-color:#B3261E;background:#FFF4F2}
.field input::placeholder,.field textarea::placeholder{color:rgba(26,21,18,.5)}
.trap{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}

.picks{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.pick.wide{grid-column:1/-1}
@media(max-width:600px){.picks{grid-template-columns:1fr}}
.pick{position:relative;display:flex}
.pick input{position:absolute;opacity:0;inset:0;width:100%;height:100%;margin:0;cursor:pointer}
.pick label{flex:1;display:flex;align-items:center;gap:14px;min-height:56px;padding:12px 16px;border:2px solid var(--line);background:var(--cream);font-weight:600;cursor:pointer;line-height:1.3}
.pick label::before{content:"";flex:0 0 20px;height:20px;border:2px solid var(--ink);background:#fff}
.pick input:checked + label{border-color:var(--ink);background:var(--ink);color:var(--cream)}
.pick input:checked + label::before{background:var(--accent);border-color:var(--accent)}
.pick input:focus-visible + label{outline:3px solid var(--accent);outline-offset:2px}

.consent{display:grid;grid-template-columns:22px 1fr;gap:12px;align-items:start;font-size:15px;color:var(--ink-soft)}
.consent input{width:22px;height:22px;margin:2px 0 0;accent-color:var(--ink)}
.consent input[aria-invalid="true"]{outline:3px solid #B3261E}
.consent a{color:var(--accent-text)}
.requirements{font-size:15px;color:var(--ink-soft);margin-top:-14px}
.actions{display:flex;flex-wrap:wrap;gap:12px}
.actions .btn{cursor:pointer;font-family:inherit;min-height:52px}
.actions .btn:disabled{opacity:.55;cursor:wait;transform:none}
.btn-ink-ghost svg{flex:0 0 auto}

.status{display:none;padding:16px 18px;font-weight:600;border:2px solid var(--ink)}
.status.show{display:block}
.status a{color:inherit;text-decoration:underline}
.status.success{background:#E9F6EC;border-color:#2E7D4F;color:#17552F}
.status.error{background:#FFF1EF;border-color:#B3261E;color:#8A1C16}
.status.info{background:var(--cream);color:var(--ink)}

.side{display:flex;flex-direction:column;gap:28px;position:sticky;top:24px}
@media(max-width:900px){.side{position:static}}
.side h2{font-size:clamp(24px,2.6vw,32px);margin:0 0 12px;max-width:none}
.side-wa{background:var(--accent);color:var(--ink);padding:26px}
.side-wa p{font-size:17px}
.side-steps ol{list-style:none;counter-reset:s;display:flex;flex-direction:column;border-top:2px solid var(--line)}
.side-steps li{counter-increment:s;padding:18px 0 18px 54px;border-bottom:2px solid var(--line);position:relative;color:var(--ink-soft);font-size:17px}
.side-steps li::before{content:counter(s);position:absolute;left:0;top:12px;font-family:'Space Grotesk',sans-serif;font-weight:900;font-size:34px;color:var(--accent-text);line-height:1}
.side-steps strong{color:var(--ink)}
.side-dm{font-size:16px;color:var(--ink-soft)}
.side-dm a{color:var(--accent-text)}

/* ---------- animations ---------- */
@view-transition{navigation:auto}
::view-transition-old(root),::view-transition-new(root){animation-duration:.3s}

@keyframes rise{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:none}}
@keyframes lineUp{from{transform:translateY(108%)}to{transform:none}}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes draw{0%{stroke-dashoffset:1;opacity:0}4%{opacity:1}100%{stroke-dashoffset:0;opacity:1}}
@keyframes float{from{transform:translate(0,0)}to{transform:translate(-10px,10px)}}
@keyframes launch{from{opacity:0;transform:translate(-.14em,.14em) scale(.5)}to{opacity:1;transform:none}}
@keyframes pop{0%{transform:scale(.55)}60%{transform:scale(1.2)}100%{transform:scale(1)}}
@keyframes slideIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

.top .wrap{animation:fadeIn .8s ease both}
.top .mark svg{animation:launch .7s cubic-bezier(.2,.8,.2,1) .5s both}
.mark svg{transition:transform .25s ease}
.mark:hover svg{transform:translate(.05em,-.05em)}

.hero .tag{animation:rise .8s cubic-bezier(.2,.7,.2,1) .05s both}
.hero h1 .ln{display:block;overflow:hidden;padding-bottom:.14em;margin-bottom:-.14em}
.hero h1 .ln > span{display:block;animation:lineUp .95s cubic-bezier(.2,.75,.2,1) both}
.hero h1 .ln:nth-child(1) > span{animation-delay:.15s}
.hero h1 .ln:nth-child(2) > span{animation-delay:.27s}
.hero h1 .ln:nth-child(3) > span{animation-delay:.39s}
.hero p.lead{animation:rise .9s cubic-bezier(.2,.7,.2,1) .7s both}
.hero .cta-row{animation:rise .9s cubic-bezier(.2,.7,.2,1) .85s both}

.hero-arrow{animation:float 7s ease-in-out 2.4s infinite alternate}
.hero-arrow line,.hero-arrow polyline{stroke-dasharray:1 1;stroke-dashoffset:0}
.hero-arrow line{animation:draw .9s cubic-bezier(.5,0,.2,1) .35s both}
.hero-arrow polyline{animation:draw .55s cubic-bezier(.5,0,.2,1) 1.1s both}

.devis-hero .wrap > *{animation:rise .85s cubic-bezier(.2,.7,.2,1) both}
.devis-hero .wrap > :nth-child(2){animation-delay:.12s}
.devis-hero .wrap > :nth-child(3){animation-delay:.26s}

/* apparition au défilement : le contenu reste visible, il glisse seulement en place */
.anim .reveal{transform:translateY(34px);transition:transform .9s cubic-bezier(.2,.7,.2,1) var(--d,0s),border-color .3s ease 0s}
.anim .reveal.in{transform:none}

/* survols */
.svc-row{position:relative}
.svc-row::before{content:"";position:absolute;left:0;right:0;top:-2px;height:2px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .5s cubic-bezier(.2,.7,.2,1)}
.svc-row:hover::before{transform:scaleX(1)}
.svc-row h3{transition:transform .35s cubic-bezier(.2,.7,.2,1)}
.svc-row:hover h3{transform:translateX(10px)}
.point{transition:border-color .3s}
.point:hover{border-top-color:var(--accent)}
.btn-primary:active,.btn-ink:active{transform:translateY(0) scale(.98)}
.field input,.field select,.field textarea,.pick label{transition:border-color .2s,background-color .2s,color .2s}
.pick label::before{transition:background-color .2s,border-color .2s}
.pick input:checked + label::before{animation:pop .3s ease}
.status.show{animation:slideIn .35s ease both}

/* FAQ : ouverture en douceur (navigateurs récents) */
@supports (interpolate-size:allow-keywords){
  .faq details{interpolate-size:allow-keywords}
  .faq details::details-content{block-size:0;overflow:hidden;transition:block-size .4s ease,content-visibility .4s allow-discrete}
  .faq details[open]::details-content{block-size:auto}
}

@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .anim .reveal{transform:none!important}
}

/* ---------- page de capture du guide ---------- */
.guide-hero{background:var(--ink);color:var(--cream);padding:140px 0 clamp(56px,8vw,96px)}
.guide-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:clamp(32px,5vw,72px);align-items:start}
@media(max-width:900px){.guide-grid{grid-template-columns:1fr}}
.guide-copy h1{font-size:clamp(38px,5.6vw,72px);margin:18px 0 22px;max-width:14ch}
.guide-copy h1 em{font-style:normal;color:var(--accent)}
.guide-copy .lead{font-size:clamp(17px,1.8vw,21px);color:var(--cream-soft);max-width:38ch;margin-bottom:34px}
.guide-cover{display:block;width:min(100%,300px);height:auto;box-shadow:0 24px 48px rgba(0,0,0,.45);transform:rotate(-2.5deg);transition:transform .4s cubic-bezier(.2,.7,.2,1)}
.guide-cover:hover{transform:rotate(0)}
.guide-form{color:var(--ink);gap:18px;position:sticky;top:24px}
@media(max-width:900px){.guide-form{position:static}}
.guide-form h2{font-size:clamp(26px,3vw,36px);max-width:none;margin:0}
.guide-form .hint{margin:-8px 0 0}
.guide-form .btn{width:100%;justify-content:center;cursor:pointer;font-family:inherit;min-height:54px}
.guide-form .btn:disabled{opacity:.55;cursor:wait}
.guide-inside .steps{margin-top:40px}
.guide-note{margin-top:34px;max-width:62ch;color:var(--ink-soft)}
.guide-note b{color:var(--ink)}
.guide-cta h2{max-width:16ch}
@media(prefers-reduced-motion:reduce){.guide-cover{transform:none;transition:none}}