/* Purple Gate — site v2, « dessins d'architecte ». Charte : indigo, Inter, angles droits, zéro ombre, zéro dégradé. */
:root{--indigo:#2E2354;--accent:#6B5CA5;--ink:#16151A;--paper:#F4F4F6;--rule:#D6D6DC;--mute:#6E6E78;--lav:#C9C2E4;--white:#fff;
 --sans:Inter,"Helvetica Neue",Helvetica,Arial,sans-serif;--w:1080px}
*{box-sizing:border-box}
html{color-scheme:light;scroll-behavior:smooth}
body{margin:0;background:var(--white);color:var(--ink);font:400 16px/1.65 var(--sans);-webkit-font-smoothing:antialiased;border-top:4px solid var(--indigo)}
.wrap{max-width:var(--w);margin:0 auto;padding-inline:28px}
a{color:var(--indigo)}
a:focus-visible,.btn:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
h1,h2,h3{font-weight:600;color:var(--indigo);letter-spacing:-.01em;text-wrap:balance}
h1{font-size:clamp(34px,5vw,56px);line-height:1.08;margin:0 0 22px;max-width:16ch;letter-spacing:-.02em}
h2{font-size:clamp(24px,3vw,30px);line-height:1.2;margin:0 0 10px;max-width:24ch}
h3{font-size:19px;line-height:1.3;margin:0 0 6px}
p{margin:0 0 14px;max-width:62ch;text-wrap:pretty}
.lede{font-size:clamp(17px,2vw,19px);line-height:1.55;color:#3A3A45;max-width:52ch}
.sub{color:var(--mute);max-width:56ch}

/* en-tête */
.top{border-bottom:1px solid var(--rule);background:var(--white)}
.top .wrap{display:flex;justify-content:space-between;align-items:center;gap:24px;padding-block:20px;flex-wrap:wrap}
.top img{width:196px;height:auto;display:block}
.nav{display:flex;gap:22px;flex-wrap:wrap;align-items:center;font-size:15px}
.nav a{text-decoration:none;color:#3A3A45;font-weight:500;padding-block:4px;border-bottom:1.5px solid transparent}
.nav a:hover{color:var(--indigo)}
.nav a[aria-current=page]{color:var(--indigo);border-bottom-color:var(--accent)}
.nav .cta{color:var(--white);background:var(--indigo);padding:9px 16px;border-bottom:0}
.nav .cta:hover{background:var(--accent)}

/* boutons */
.btn{display:inline-block;background:var(--indigo);color:var(--white);text-decoration:none;font-weight:500;padding:13px 22px;font-size:16px}
.btn:hover{background:var(--accent)}
.more{font-weight:500;text-decoration:none;border-bottom:1.5px solid var(--accent)}
.actions{display:flex;gap:24px;align-items:center;flex-wrap:wrap;margin-top:28px}

/* ouverture : l'élévation annotée */
.hero{background:var(--paper);border-bottom:1px solid var(--rule)}
.hero .wrap{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(280px,.9fr);gap:56px;align-items:center;padding-block:72px 64px}
.elev{display:block;width:100%;max-width:420px;height:auto;justify-self:end}
.hero.page .wrap{grid-template-columns:minmax(0,1fr) minmax(240px,320px);padding-block:56px 48px}
.hero.page img{width:100%;height:auto;display:block;justify-self:end}
.hero.page.wide .wrap{grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);align-items:center}
.hero.page.wide img{max-width:none;border:1px solid var(--rule);background:var(--white)}
@media (prefers-reduced-motion:no-preference){
  .draw{stroke-dasharray:900;stroke-dashoffset:900;animation:draw 1.6s cubic-bezier(.4,0,.2,1) forwards}
  .draw:nth-of-type(2){animation-delay:.15s} .draw:nth-of-type(3){animation-delay:.3s}
  .elev text{opacity:0;animation:fade .6s 1.4s forwards}
  @keyframes draw{to{stroke-dashoffset:0}} @keyframes fade{to{opacity:1}}
}

/* sections */
.sec{padding-block:64px;border-bottom:1px solid var(--rule)}
.sec.paper{background:var(--paper)}
.sec.ink{background:var(--indigo);color:var(--lav);border-bottom:0}
.sec.ink h2,.sec.ink h3{color:var(--white)}
.sec.ink p{color:var(--lav)}
.sec.ink .g path{stroke:var(--lav)}
.sec .head{margin-bottom:36px}

/* offres : trois panneaux, dessin en tête */
.offers{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;background:var(--rule);border:1px solid var(--rule)}
.offer{background:var(--white);padding:26px 22px 28px;display:flex;flex-direction:column;text-decoration:none;color:inherit}
.offer:hover h3{border-bottom:1.5px solid var(--accent)}
.offer img{width:100%;height:auto;display:block;margin-bottom:22px;background:var(--paper)}
.offer h3{align-self:flex-start;border-bottom:1.5px solid transparent}
.offer p{font-size:15px;color:#3A3A45;margin:0}

/* listes à glyphe (méthode, engagements, prestations) */
.pts{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 40px}
.pts li{display:grid;grid-template-columns:20px minmax(0,1fr);gap:16px;align-items:start}
.pts .g{width:20px;height:20px;margin-top:4px}
.pts p{margin:0;font-size:15.5px;color:#3A3A45}
.pts.one{grid-template-columns:1fr}

/* plan de méthode */
.plan{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.2fr);gap:48px;align-items:center}
.plan img{width:100%;height:auto;display:block;background:var(--white);border:1px solid var(--rule)}

/* deux colonnes intitulé / contenu (pages offres) */
.two{display:grid;grid-template-columns:220px minmax(0,1fr);gap:40px}
.two h2{font-size:17px;margin-top:4px}
.steps{margin:0;padding:0;list-style:none;counter-reset:s;border-top:1px solid var(--indigo)}
.steps li{counter-increment:s;display:grid;grid-template-columns:44px minmax(0,1fr);gap:16px;padding:14px 0;border-bottom:1px solid var(--rule)}
.steps li::before{content:counter(s);font-weight:600;color:var(--accent);font-variant-numeric:tabular-nums}
table{width:100%;border-collapse:collapse;font-size:15.5px;border-top:1px solid var(--indigo)}
th,td{text-align:left;padding:10px 0;border-bottom:1px solid var(--rule);vertical-align:top}
th{width:230px;font-weight:500;color:var(--mute);padding-right:16px}
td{font-variant-numeric:tabular-nums}
table.split th{width:50%;color:var(--indigo);font-weight:600;padding-right:24px}
table.split td{padding-right:24px}

/* contact : l'adresse dans le passage */
.gatebox{position:relative;display:grid;place-items:center;padding-block:24px}
.gatebox .gate{width:min(100%,360px);height:auto;display:block}
.gatebox .mail{position:absolute;bottom:22%;left:50%;transform:translateX(-50%);background:var(--white);padding:8px 14px;font-size:clamp(17px,2.6vw,22px);font-weight:500;text-decoration:none;border:1px solid var(--indigo)}
.gatebox .mail:hover{background:var(--indigo);color:var(--white)}

footer{background:var(--indigo);color:var(--lav);padding-block:44px;font-size:14px;line-height:1.7;border-top:1px solid var(--accent)}
footer .wrap{display:flex;justify-content:space-between;gap:32px;flex-wrap:wrap}
footer img{width:170px;height:auto;display:block;margin-bottom:16px}
footer strong{color:var(--white);font-weight:500}
footer a{color:var(--lav)}
footer .ids{font-variant-numeric:tabular-nums;text-align:right}

@media (max-width:900px){
  .offers{grid-template-columns:repeat(2,minmax(0,1fr))}
  .pts{grid-template-columns:1fr}
  .plan{grid-template-columns:1fr}
}
@media (max-width:760px){
  .offers{grid-template-columns:1fr}
  .hero .wrap,.hero.page .wrap{grid-template-columns:1fr;gap:36px;padding-block:44px 40px}
  .elev{max-width:300px;justify-self:start}
  .hero.page img{max-width:240px;justify-self:start}
  .two{grid-template-columns:1fr;gap:12px}
  .sec{padding-block:44px}
  th{display:block;width:auto;padding:8px 0 0;border-bottom:0}
  td{display:block;padding-top:2px}
  table.split th,table.split td{display:table-cell;width:50%;padding:10px 12px 10px 0;border-bottom:1px solid var(--rule)}
  footer .ids{text-align:left}
  .nav{gap:14px;font-size:14px}
}