/* ---------- hero ---------- */
.hero{position:relative;min-height:max(720px,min(100vh,1080px));overflow:hidden;background:#000}
.hero video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.5;filter:grayscale(.35) contrast(1.05)}
.hero:before{content:'';position:absolute;inset:0;z-index:1;background:radial-gradient(ellipse 70% 80% at 20% 70%,rgba(14,14,14,.85),transparent 70%),linear-gradient(0deg,var(--ink) 0%,transparent 35%)}
.hero:after{content:'';position:absolute;inset:0;z-index:1;pointer-events:none;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:120px 120px;mask-image:linear-gradient(180deg,rgba(0,0,0,.6),transparent 80%);-webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.6),transparent 80%)}
.hero-in{position:relative;z-index:2;box-sizing:border-box;min-height:max(720px,min(100vh,1080px));display:flex;flex-direction:column;justify-content:flex-end;padding-top:130px;padding-bottom:0}
.hero h1{font-size:clamp(64px,10.5vw,168px);margin:0}
.hero .sub{display:flex;justify-content:space-between;align-items:flex-end;gap:40px;flex-wrap:wrap;margin-top:40px}
.hero p{max-width:440px;font-size:17px;line-height:1.7;color:var(--mute2);margin:0}
.hero .btns{display:flex;gap:12px;flex-wrap:wrap}
.specbar{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-top:1px solid var(--line2);margin-top:64px}
.specbar div{padding:22px 0 28px;border-right:1px solid var(--line)}
.specbar div+div{padding-left:24px}.specbar div:last-child{border-right:0}
.specbar small{display:block;color:var(--mute)}
.specbar b{display:block;font-family:"Space Grotesk";font-weight:400;font-size:19px;letter-spacing:-.01em;text-transform:none;margin-top:10px}
@media (max-width:820px){.specbar{grid-template-columns:repeat(2,minmax(0,1fr))}.specbar div:nth-child(3){padding-left:0}}
.crop{position:absolute;z-index:2;width:22px;height:22px;border:0 solid var(--brunc)}
.coord{position:absolute;z-index:2;color:var(--mute)}
.rec{position:absolute;z-index:2;top:104px;right:max(48px,calc((100vw - 1360px)/2 + 48px));display:flex;gap:10px;align-items:center;color:var(--mute2)}
.rec i{width:6px;height:6px;border-radius:50%;background:#C8553D;animation:bl 1.4s infinite}
@keyframes bl{50%{opacity:.15}}

/* ---------- sections ---------- */
section{position:relative}
.sec{padding:160px 0}
.head{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:48px;align-items:end;margin-bottom:72px}
.head h2{font-size:clamp(48px,6vw,96px);margin:22px 0 0}
.head p{font-size:17px;line-height:1.75;color:var(--mute2);max-width:460px;margin:0;justify-self:end}
@media (max-width:820px){.head{grid-template-columns:1fr}.head p{justify-self:start}.sec{padding:96px 0}}

/* manifeste */
.mani{border-top:1px solid var(--line)}
.mani .t{font-family:'Space Grotesk';font-weight:300;font-size:clamp(28px,3.4vw,52px);line-height:1.22;letter-spacing:-.025em;max-width:1120px;margin:28px 0 0;color:var(--mute2)}
.mani .t b{font-weight:400;color:var(--white)}
.mani .t span{font-family:'IBM Plex Mono';font-size:.32em;letter-spacing:.18em;color:var(--brunc);vertical-align:super;margin:0 .4em 0 .1em}

/* gammes */
.range{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
.it{background:var(--ink);display:flex;flex-direction:column;position:relative;overflow:hidden}
.it .pl{aspect-ratio:1/1;background:var(--paper);overflow:hidden;position:relative}
.it .pl img{width:100%;height:100%;object-fit:cover;transition:transform 1.1s var(--ease),filter .6s}
.it:hover .pl img{transform:scale(1.06)}
.it .pl .n{position:absolute;top:18px;left:20px;color:rgba(14,14,14,.55)}
.it .pl .tg{position:absolute;top:18px;right:20px;color:rgba(14,14,14,.55)}
.it .tx{padding:28px 28px 32px;display:flex;justify-content:space-between;align-items:flex-end;gap:16px}
.it h3{font-family:'Space Grotesk';font-weight:400;font-size:30px;letter-spacing:-.025em;margin:0}
.it p{margin:8px 0 0;color:var(--mute);font-size:14px;line-height:1.6}
.it .ar{flex:none;width:44px;height:44px;border:1px solid var(--line2);position:relative;transition:all .4s var(--ease)}
.it .ar:before{content:'';position:absolute;left:12px;right:12px;top:50%;height:1px;background:var(--white)}
.it .ar:after{content:'';position:absolute;right:12px;top:calc(50% - 4px);width:8px;height:8px;border-top:1px solid var(--white);border-right:1px solid var(--white);transform:rotate(45deg)}
.it:hover .ar{background:var(--brunc);border-color:var(--brunc)}
.it:hover .ar:before{background:var(--ink)}.it:hover .ar:after{border-color:var(--ink)}
@media (max-width:1000px){.range{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:640px){.range{grid-template-columns:1fr}}

/* fiche technique (section claire) */
.light{background:var(--paper);color:var(--ink)}
.light .head p,.light .mute{color:#5E5B55}
.fiche{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:0;border:1px solid var(--pline)}
.fiche .vis{position:relative;background:#fff;border-right:1px solid var(--pline);min-height:640px;overflow:hidden}
.fiche .vis img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:opacity .5s}
.fiche .vis .lab{position:absolute;left:24px;bottom:22px;color:#6E6A63}
.fiche .vis .dim{position:absolute;left:8%;right:8%;top:24px;display:flex;align-items:center;gap:12px;color:#6E6A63}
.fiche .vis .dim:before,.fiche .vis .dim:after{content:'';flex:1;height:1px;background:rgba(14,14,14,.25)}
.fiche .data{padding:40px 44px;display:flex;flex-direction:column}
.fiche h3{font-family:'Space Grotesk';font-weight:300;font-size:56px;letter-spacing:-.04em;line-height:1;margin:14px 0 0}
.fiche h3 b{font-weight:500}
.rows{margin-top:32px;border-top:1px solid var(--pline)}
.rows div{display:grid;grid-template-columns:140px minmax(0,1fr);gap:16px;padding:15px 0;border-bottom:1px solid var(--pline);font-size:14px;align-items:center}
.rows small{color:#7A766E}
.rows span{font-family:'IBM Plex Mono';font-size:13px;letter-spacing:.02em}
.sw{display:flex;gap:8px}
.sw button{width:30px;height:30px;border:1px solid rgba(14,14,14,.18);cursor:pointer;padding:0;position:relative}
.sw button.on:after{content:'';position:absolute;inset:-5px;border:1px solid var(--ink)}
.seg{display:flex;flex-wrap:wrap;gap:0;margin-top:10px}
.seg button{font-family:'IBM Plex Mono';font-size:12px;letter-spacing:.04em;background:transparent;border:1px solid var(--pline);margin:0 -1px -1px 0;color:var(--ink);height:44px;padding:0 14px;cursor:pointer;transition:background .2s}
.seg button:hover{background:var(--paper2)}
.seg button.on{background:var(--ink);color:var(--white);border-color:var(--ink);position:relative;z-index:1}
.lblk{margin-top:26px;color:#7A766E}
.total{margin-top:auto;padding-top:30px;display:flex;justify-content:space-between;align-items:flex-end;gap:16px;flex-wrap:wrap}
.total b{display:block;font-family:'Space Grotesk';font-weight:300;font-size:72px;letter-spacing:-.04em;line-height:1;margin-top:8px}
.total b sup{font-size:.35em;letter-spacing:0;margin-left:6px;color:#7A766E;font-weight:400}
@media (max-width:980px){.fiche{grid-template-columns:1fr}.fiche .vis{min-height:420px;border-right:0;border-bottom:1px solid var(--pline)}.fiche .data{padding:32px 22px}}

/* procédé */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-top:1px solid var(--line2)}
.step{padding:34px 28px 40px 0;border-right:1px solid var(--line)}
.step+.step{padding-left:28px}.step:last-child{border-right:0}
.step .num{font-family:'Space Grotesk';font-weight:300;font-size:96px;letter-spacing:-.05em;line-height:1;color:transparent;-webkit-text-stroke:1px rgba(250,250,248,.35)}
.step h4{font-family:'Space Grotesk';font-weight:400;font-size:22px;letter-spacing:-.01em;margin:26px 0 0}
.step p{color:var(--mute);line-height:1.7;font-size:14px;margin:10px 0 0}
.step:hover .num{-webkit-text-stroke-color:var(--brunc)}
@media (max-width:900px){.steps{grid-template-columns:repeat(2,minmax(0,1fr))}.step:nth-child(3){padding-left:0}}
.film{margin-top:72px;position:relative;aspect-ratio:21/9;overflow:hidden;background:#000}
.film video{width:100%;height:100%;object-fit:cover;display:block;filter:brightness(1.18) contrast(1.05)}
.film::after{content:'';position:absolute;left:0;right:0;bottom:0;height:22%;background:linear-gradient(transparent,rgba(0,0,0,.55));pointer-events:none}
.film .cap{z-index:1}
.film .cap{position:absolute;left:24px;bottom:22px;right:24px;display:flex;justify-content:space-between;color:var(--mute2)}

/* terrain */
.reel{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:1px;background:var(--line)}
.reel figure{margin:0;position:relative;overflow:hidden;background:#000}
.reel video,.reel img{width:100%;height:100%;object-fit:cover;transition:transform 1.2s var(--ease),filter .6s;filter:grayscale(.15)}
.reel figure:hover video,.reel figure:hover img{transform:scale(1.04);filter:none}
.reel figcaption{position:absolute;left:0;right:0;bottom:0;padding:48px 20px 18px;background:linear-gradient(0deg,rgba(14,14,14,.9),transparent);display:flex;justify-content:space-between;color:var(--mute2)}
.r1,.r2,.r3{grid-column:span 4;aspect-ratio:3/4}
.r4{grid-column:span 7;aspect-ratio:16/10}.r5{grid-column:span 5}.r5 img,.r5 video{position:absolute;inset:0;object-position:60% 50%}
@media (max-width:820px){.r1,.r2,.r3,.r4,.r5{grid-column:span 12;aspect-ratio:4/5}}

/* espace client */
.client{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);border-top:1px solid var(--line)}
.client .tx{padding:120px 64px 120px 48px;max-width:680px;justify-self:end;width:100%}
.client h2{font-size:clamp(44px,5vw,80px);margin:22px 0 0}
.client .ui{background:var(--ink2);border-left:1px solid var(--line);padding:64px 48px;display:flex;align-items:center}
.mock{width:100%;max-width:560px;border:1px solid var(--line2);background:var(--ink)}
.mock .bar{display:flex;justify-content:space-between;padding:14px 18px;border-bottom:1px solid var(--line);color:var(--mute)}
.mock .hd{display:flex;gap:18px;padding:20px 18px;border-bottom:1px solid var(--line);align-items:center}
.mock .hd img{width:72px;height:72px;object-fit:cover;background:var(--paper)}
.mock .hd b{font-family:'Space Grotesk';font-weight:400;font-size:32px;letter-spacing:-.03em;display:block}
.mock .ft{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-bottom:1px solid var(--line)}
.mock .ft div{padding:14px 16px;border-right:1px solid var(--line)}.mock .ft div:last-child{border-right:0}
.mock .ft b{font-family:'IBM Plex Mono';font-weight:400;font-size:18px;display:block}
.mock .ft small{color:var(--mute);font-size:11px;display:block;margin-top:6px;line-height:1.4}
.mock .ev{display:grid;grid-template-columns:80px 10px minmax(0,1fr) auto;gap:14px;padding:14px 18px;border-bottom:1px solid var(--line);font-size:13px;align-items:center}
.mock .ev:last-child{border-bottom:0}
.mock .ev .d{font-family:'IBM Plex Mono';color:var(--mute);font-size:11px}
.mock .ev i{width:8px;height:8px;background:var(--brunc);display:block}
.mock .ev .s{font-family:'IBM Plex Mono';font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--mute2);border:1px solid var(--line2);padding:4px 7px}
.feats{margin-top:40px;border-top:1px solid var(--line)}
.feats div{display:grid;grid-template-columns:44px minmax(0,1fr);gap:12px;padding:16px 0;border-bottom:1px solid var(--line);font-size:15px;color:var(--mute2)}
.feats span{color:var(--brunc)}
@media (max-width:980px){.client{grid-template-columns:1fr}.client .tx{padding:96px 20px 48px;justify-self:start}.client .ui{padding:24px 20px 96px;border-left:0}}

/* recyclage */
.recy{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);border-top:1px solid var(--line);background:#000}
.recy .ph{min-height:560px;background:#000 url(img/terrain-noire.jpg) center 100%/cover no-repeat}
.recy .tx{padding:120px 48px;border-left:1px solid var(--line)}
.recy h2{font-size:clamp(44px,5vw,80px);margin:22px 0 0}
.chain{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));margin-top:48px;border-top:1px solid var(--line2)}
.chain div{padding:18px 14px 0 0;color:var(--mute2)}
.chain div b{display:block;font-family:'IBM Plex Mono';font-weight:400;color:var(--brunc);font-size:11px;letter-spacing:.2em;margin-bottom:8px}
@media (max-width:980px){.recy{grid-template-columns:1fr}.recy .ph{min-height:380px}.recy .tx{padding:72px 20px;border-left:0}}


/* ---------- ajouts v4 ---------- */
.approach{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:1px solid var(--line2)}
.approach .step{padding:34px 28px 40px 0;border-right:1px solid var(--line)}
.approach .step+.step{padding-left:28px}.approach .step:last-child{border-right:0}
@media (max-width:900px){.approach{grid-template-columns:1fr}.approach .step,.approach .step+.step{padding:28px 0;border-right:0;border-bottom:1px solid var(--line)}}
.fam{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
.fam .fc{background:var(--ink);display:flex;flex-direction:column;position:relative;overflow:hidden}
.fam .cover{display:block}
.fam h3 a:hover{color:var(--brunc)}
.fam .pl{aspect-ratio:4/5;background:var(--paper);overflow:hidden;position:relative}
.fam .pl img{width:100%;height:100%;object-fit:cover;transition:transform 1.1s var(--ease)}
.fam .fc:hover .pl img{transform:scale(1.05)}
.fam .pl .n{position:absolute;top:18px;left:20px;color:rgba(14,14,14,.6)}
.fam .tx{padding:30px 28px 34px;display:flex;flex-direction:column;gap:12px;flex:1}
.fam h3{font-family:'Space Grotesk';font-weight:400;font-size:30px;letter-spacing:-.025em;margin:0;line-height:1.1}
.fam p{color:var(--mute);font-size:15px;line-height:1.7;margin:0}
.fam .links{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:18px}
.fam .links a{transition:border-color .25s,color .25s,background .25s;font-family:'IBM Plex Mono';font-size:10px;letter-spacing:.14em;text-transform:uppercase;border:1px solid var(--line2);padding:7px 10px;color:var(--mute2)}
@media (max-width:900px){.fam{grid-template-columns:1fr}.fam .pl{aspect-ratio:4/3}}
.lvl{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--pline);border:1px solid var(--pline)}
.lvl a{background:var(--paper);display:flex;flex-direction:column;color:var(--ink)}
.lvl .im{aspect-ratio:1;background:#fff;overflow:hidden;position:relative}
.lvl .im img{width:100%;height:100%;object-fit:cover;transition:transform 1.1s var(--ease)}
.lvl a:hover .im img{transform:scale(1.05)}
.lvl .im .n{position:absolute;top:16px;left:18px;font-family:'IBM Plex Mono';font-size:11px;letter-spacing:.2em;background:rgba(244,242,238,.92);padding:6px 9px}
.lvl .tx{padding:28px 28px 32px;border-top:1px solid var(--pline);display:flex;flex-direction:column;gap:14px;flex:1}
.lvl h3{font-family:'Space Grotesk';font-weight:400;font-size:28px;letter-spacing:-.025em;margin:0;line-height:1.1}
.lvl p{color:#5E5B55;font-size:15px;line-height:1.7;margin:0}
.lvl dl{margin:0;border-top:1px solid var(--pline)}
.lvl dl div{display:grid;grid-template-columns:110px minmax(0,1fr);gap:12px;padding:10px 0;border-bottom:1px solid var(--pline);font-size:13px}
.lvl dt{font-family:'IBM Plex Mono';font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:#7A766E;padding-top:2px}
.lvl dd{margin:0}
.lvl .go{margin-top:auto;padding-top:10px;font-family:'IBM Plex Mono';font-size:11px;letter-spacing:.18em;text-transform:uppercase;display:flex;align-items:center;gap:14px}
.lvl .go i{display:block;width:28px;height:1px;background:currentColor;transition:width .35s var(--ease)}
.lvl a:hover .go{color:var(--brun)}.lvl a:hover .go i{width:44px}
@media (max-width:900px){.lvl{grid-template-columns:1fr}}
/* diagnostic */
.diag{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);border:1px solid var(--line2)}
.diag .l{padding:56px 48px;border-right:1px solid var(--line)}
.diag .r{padding:48px;background:var(--ink2)}
.diag h2{font-size:clamp(40px,4.4vw,68px);margin:22px 0 0}
.q{margin-bottom:28px}
.q .mono{color:var(--mute);display:block;margin-bottom:12px}
.opts{display:flex;flex-wrap:wrap;gap:0}
.opts button{background:transparent;border:1px solid var(--line2);margin:0 -1px -1px 0;color:var(--mute2);font:400 14px Inter;height:48px;padding:0 18px;cursor:pointer;transition:background .2s,color .2s}
.opts button:hover{color:var(--white)}
.opts button.on{background:var(--white);color:var(--ink);border-color:var(--white);position:relative;z-index:1}
.res{margin-top:12px;border-top:1px solid var(--line2);padding-top:26px;display:flex;flex-direction:column;gap:22px}
.res .rc{display:grid;grid-template-columns:120px minmax(0,1fr);gap:22px;align-items:center}
.res .rc+.rc{border-top:1px solid var(--line);padding-top:22px}
.res img{width:120px;height:120px;object-fit:cover;background:var(--paper)}
.res b{display:block;font-family:'Space Grotesk';font-weight:400;font-size:28px;letter-spacing:-.02em}
.res p{margin:8px 0 12px;color:var(--mute2);font-size:14px;line-height:1.6}
.res a{font-family:'IBM Plex Mono';font-size:11px;letter-spacing:.18em;text-transform:uppercase;border-bottom:1px solid var(--brunc);padding-bottom:3px}
@media (max-width:900px){.diag{grid-template-columns:1fr}.diag .l{border-right:0;border-bottom:1px solid var(--line);padding:40px 22px}.diag .r{padding:32px 22px}}
/* témoignages */
.tm{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
.tm figure{margin:0;background:var(--ink);padding:40px 40px 36px;display:flex;flex-direction:column;gap:26px}
.tm blockquote{margin:0;font-family:'Space Grotesk';font-weight:300;font-size:21px;line-height:1.5;letter-spacing:-.01em;color:var(--white)}
.tm blockquote:before{content:'';display:block;width:28px;height:2px;background:var(--brunc);margin-bottom:24px}
.tm figcaption{margin-top:auto;color:var(--mute)}
.tm figcaption b{display:block;color:var(--mute2);font-weight:400;margin-bottom:4px}
.tm figure.big{grid-column:span 2}
.tm figure.big blockquote{font-size:clamp(26px,2.6vw,38px);line-height:1.3}
@media (max-width:900px){.tm{grid-template-columns:1fr}.tm figure.big{grid-column:auto}.tm figure{padding:30px 22px}}
/* formations */
.form{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:1px;background:var(--pline);border:1px solid var(--pline)}
.form > div{background:var(--paper);padding:40px}
.form h3{font-family:'Space Grotesk';font-weight:400;font-size:32px;letter-spacing:-.025em;margin:12px 0 0}
.form .meta{display:flex;gap:18px;flex-wrap:wrap;margin-top:14px;color:#7A766E}
.form ul{list-style:none;padding:0;margin:24px 0 0;border-top:1px solid var(--pline)}
.form li{padding:12px 0 12px 26px;border-bottom:1px solid var(--pline);font-size:15px;position:relative;color:#3E3B37}
.form li:before{content:'';position:absolute;left:0;top:22px;width:12px;height:1px;background:var(--brun)}
.trainers{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border:1px solid var(--pline);border-top:0}
.trainers div{padding:22px 24px;border-right:1px solid var(--pline)}.trainers div:last-child{border-right:0}
.trainers b{display:block;font-family:'Space Grotesk';font-weight:400;font-size:19px}
.trainers small{font-family:'IBM Plex Mono';font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:#7A766E}
@media (max-width:900px){.form{grid-template-columns:1fr}.form > div{padding:30px 22px}.trainers{grid-template-columns:1fr}.trainers div{border-right:0;border-bottom:1px solid var(--pline)}}
/* faq */
.faq{border-top:1px solid var(--line2)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;display:grid;grid-template-columns:60px minmax(0,1fr) 44px;gap:16px;align-items:center;padding:26px 0;font-family:'Space Grotesk';font-weight:400;font-size:clamp(19px,1.8vw,24px);letter-spacing:-.015em}
.faq summary::-webkit-details-marker{display:none}
.faq summary .n{font-family:'IBM Plex Mono';font-size:11px;letter-spacing:.2em;color:var(--brunc)}
.faq summary .pm{width:44px;height:44px;border:1px solid var(--line2);position:relative;transition:transform .35s var(--ease),background .3s}
.faq summary .pm:before,.faq summary .pm:after{content:'';position:absolute;left:13px;right:13px;top:50%;height:1px;background:var(--white)}
.faq summary .pm:after{transform:rotate(90deg)}
.faq details[open] summary .pm{transform:rotate(45deg);background:var(--brunc);border-color:var(--brunc)}
.faq details[open] summary .pm:before,.faq details[open] summary .pm:after{background:var(--ink)}
.faq .a{padding:0 60px 30px 76px;color:var(--mute2);line-height:1.8;max-width:900px}
@media (max-width:700px){.faq summary{grid-template-columns:36px minmax(0,1fr) 44px}.faq .a{padding:0 0 26px 52px}}

.fam .links a:hover{border-color:var(--brunc);color:var(--white);background:rgba(184,138,98,.12)}
@media (max-width:820px){.hero{height:auto;min-height:100svh;max-height:none}.hero-in{padding-top:116px;padding-bottom:28px}} /* mobile : le texte ne passe plus sous la barre de navigation */


/* Bandeau « Challenge du mois » */
.chal{background:#0B0B0B;background-image:radial-gradient(900px 420px at 88% 40%,rgba(184,138,98,.16),transparent 70%);border-bottom:1px solid var(--line);position:relative;color:#F4F2EE}
.chal .wrap{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(280px,.65fr);gap:56px;align-items:center;padding-top:64px;padding-bottom:64px}
.chal-k{display:flex;align-items:center;gap:16px;font-size:12px;letter-spacing:.28em;text-transform:uppercase;color:#D9B895}
.chal-k i{display:block;width:44px;height:1px;background:#D9B895}
.chal h2{font-size:clamp(30px,3.6vw,52px);line-height:1.08;margin:18px 0 0}
.chal h2 b{color:#D9B895;font-weight:inherit}
.chal p{color:#B5B1A9;line-height:1.7;max-width:640px;margin:18px 0 0}
.chal p.chal-r{font-size:14px;color:#9A968F;margin-top:12px}
.chal-s{list-style:none;margin:28px 0 0;padding:0;display:flex;gap:28px;flex-wrap:wrap}
.chal-s li{display:flex;align-items:center;gap:12px;font-size:14px;color:#D8D4CC;max-width:200px}
.chal-s b{flex:none;width:40px;height:40px;border:1px solid #B88A62;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font:500 12px 'IBM Plex Mono',monospace;color:#D9B895}
.chal-rt{display:flex;flex-direction:column;gap:14px}
.chal .amts{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px}
.chal .amts li{display:flex;justify-content:space-between;align-items:center;gap:24px;padding:14px 22px;border:1px solid #6B5238;border-radius:12px;background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.01))}
.chal .amts li:nth-child(1){border-color:#D9B895;box-shadow:0 0 28px rgba(217,184,149,.18);padding:20px 22px}
.chal .amts li:nth-child(2){border-color:#8A8A8A}
.chal .amts span{font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:#C9C5BD}
.chal .amts b{font-family:'Space Grotesk';font-weight:500;font-size:34px;letter-spacing:-.02em;color:#D9B895}
.chal .amts li:nth-child(1) b{font-size:44px}
.chal .amts li:nth-child(2) b{color:#E4E1DA}
.chal .amts li:nth-child(3) b{color:#C9936A}
.chal-btn{display:flex;align-items:center;justify-content:center;gap:16px;min-height:56px;padding:0 32px;border-radius:32px;background:#D9B895;color:#0E0E0E;font:500 13px 'Space Grotesk',sans-serif;letter-spacing:.18em;text-transform:uppercase;text-decoration:none;border:0;cursor:pointer;transition:transform .25s,box-shadow .25s,background .25s}
.chal-btn:hover,.chal-btn:focus-visible{background:#E4C9A8;transform:translateY(-2px);box-shadow:0 10px 28px rgba(217,184,149,.28)}
.chal-btn:focus-visible{outline:2px solid #F4F2EE;outline-offset:3px}
.chal-ar{position:relative;display:inline-block;width:22px;height:2px;background:currentColor;transition:transform .25s}
.chal-ar::after{content:"";position:absolute;right:0;top:-4px;width:8px;height:8px;border-top:2px solid currentColor;border-right:2px solid currentColor;transform:rotate(45deg);transform-origin:center}
.chal-btn:hover .chal-ar,.chal-btn:focus-visible .chal-ar{transform:translateX(6px)}
@media (max-width:900px){.chal .wrap{grid-template-columns:1fr;gap:32px;padding-top:48px;padding-bottom:48px}.chal-s{flex-direction:column;gap:14px}.chal-s li{max-width:none}.chal-btn{width:100%;box-sizing:border-box;padding:0 20px}}
@media (prefers-reduced-motion:reduce){.chal-btn,.chal-ar{transition:none}.chal-btn:hover{transform:none}.chal-btn:hover .chal-ar{transform:none}}

/* Fenêtre du classement */
.chal-dlg{border:0;padding:0;background:transparent;max-width:min(560px,calc(100vw - 24px));width:100%;color:#F4F2EE;font-family:'Space Grotesk',sans-serif}
.chal-dlg::backdrop{background:rgba(0,0,0,.72);backdrop-filter:blur(3px)}
.chal-dc{position:relative;background:#0E0E0E;border:1px solid #6B5238;border-radius:16px;padding:32px 28px 24px;max-height:calc(100vh - 40px);overflow-y:auto;box-sizing:border-box}
.chal-x{position:absolute;top:10px;right:10px;width:44px;height:44px;border:0;border-radius:50%;background:transparent;cursor:pointer;color:#F4F2EE}
.chal-x::before,.chal-x::after{content:"";position:absolute;left:13px;top:21px;width:18px;height:2px;background:currentColor;transform:rotate(45deg)}
.chal-x::after{transform:rotate(-45deg)}
.chal-x:hover,.chal-x:focus-visible{background:rgba(255,255,255,.1);outline:none}
.chal-x:focus-visible{box-shadow:0 0 0 2px #D9B895}
.chal-dk{font-size:12px;letter-spacing:.24em;text-transform:uppercase;color:#D9B895}
.chal-dt{font-size:26px;font-weight:400;letter-spacing:-.02em;margin:8px 40px 18px 0;line-height:1.15}
.chal-pod{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.chal-pod li{display:flex;align-items:center;gap:14px;padding:14px 16px;border:1px solid #3A3028;border-radius:12px}
.chal-pod li:nth-child(1){border-color:#D9B895;box-shadow:0 0 24px rgba(217,184,149,.14)}
.chal-pod .r{flex:none;width:34px;height:34px;border:1px solid #B88A62;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font:500 12px 'IBM Plex Mono',monospace;color:#D9B895}
.chal-pod .n{flex:1;min-width:0;font-size:17px;overflow-wrap:anywhere}
.chal-pod .v .n{color:#8F8B84}
.chal-pod .g{font-size:20px;font-weight:500;color:#D9B895}
.chal-me{margin-top:18px;padding:16px;border-radius:12px;background:#1A1612;font-size:15px;line-height:1.55;color:#D8D4CC}
.chal-me strong{display:block;font-size:20px;font-weight:500;color:#F4F2EE;margin-bottom:4px}
.chal-me a,.chal-ft a{color:#D9B895;text-decoration:underline;text-underline-offset:3px}
.chal-ft{margin-top:18px;font-size:13px;line-height:1.6;color:#9A968F}
.chal-ft a{display:inline-block;min-height:24px}
.chal-sk{height:58px;border-radius:12px;margin-bottom:10px;background:linear-gradient(90deg,#1A1612 25%,#262019 50%,#1A1612 75%);background-size:200% 100%;animation:chalsk 1.2s linear infinite}
@keyframes chalsk{to{background-position:-200% 0}}
.chal-re{margin-top:14px;min-height:44px;padding:0 22px;border-radius:22px;border:1px solid #D9B895;background:transparent;color:#D9B895;font:500 14px 'Space Grotesk',sans-serif;cursor:pointer}
@media (max-width:520px){.chal-dc{padding:28px 18px 20px}.chal-dt{font-size:22px}}
@media (prefers-reduced-motion:reduce){.chal-sk{animation:none}}

/* Bandeau challenge : finitions visuelles */
.chal{background-image:radial-gradient(760px 420px at 85% 45%,rgba(217,184,149,.20),transparent 70%),radial-gradient(500px 300px at 8% 0%,rgba(184,138,98,.10),transparent 70%)}
.chal h2 b{background:linear-gradient(95deg,#E9CFAE 0%,#C9976A 55%,#E4C29A 100%);-webkit-background-clip:text;background-clip:text;color:transparent;-webkit-text-fill-color:transparent}
.chal-s{gap:0;flex-wrap:nowrap;margin-top:34px;align-items:center}
.chal-s li{position:relative;max-width:none;flex:0 1 auto;padding-right:44px;line-height:1.35}
.chal-s li:not(:last-child)::after{content:"";position:absolute;right:16px;top:50%;width:8px;height:8px;border-top:1.5px solid #8B6A4A;border-right:1.5px solid #8B6A4A;transform:translateY(-50%) rotate(45deg)}
.chal-s li:last-child{padding-right:0}
.chal-s .ic{flex:none;width:52px;height:52px;border:1px solid #B88A62;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;color:#D9B895;background:rgba(184,138,98,.08)}
.chal-s li{gap:14px}
.chal-rt{position:relative;isolation:isolate}
.chal-card{position:absolute;z-index:-1;right:-64px;top:18px;width:190px;height:122px;border-radius:12px;border:1px solid #7A5C3E;background:linear-gradient(145deg,#1B1815,#0C0B0A);box-shadow:0 24px 50px rgba(0,0,0,.6),inset 0 0 0 1px rgba(217,184,149,.06);transform:rotate(8deg);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;color:#D9B895}
.chal-card span{font:500 11px 'IBM Plex Mono',monospace;letter-spacing:.24em;text-transform:uppercase}
.chal .amts li{background:rgba(14,14,14,.86);backdrop-filter:blur(4px)}
.chal .amts .rk{display:flex;align-items:center;gap:12px;color:#C9C5BD}
.chal .amts li:nth-child(1) .rk{color:#D9B895}
.chal .amts li:nth-child(2) .rk{color:#CFCFCF}
.chal .amts li:nth-child(3) .rk{color:#C9936A}
.chal .amts .rk svg{flex:none}
.chal .amts .rk .mono{font-size:14px;letter-spacing:.12em;text-transform:uppercase;color:inherit}
@media (max-width:1180px){.chal-card{display:none}}
@media (max-width:900px){.chal-s{flex-direction:column;align-items:flex-start;gap:16px}.chal-s li{padding-right:0}.chal-s li:not(:last-child)::after{display:none}}

/* ---------- Harmonisation : même langage partout (angles droits, filets fins, bronze unique, rythme régulier) ---------- */
.sec{padding:128px 0}
.head{margin-bottom:56px}
@media (max-width:820px){.sec{padding:80px 0}.head{margin-bottom:40px}}
.chal{background:var(--ink);background-image:none;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.chal-k{color:var(--brunc)}.chal-k i{background:var(--brunc)}
.chal h2 b{background:none;-webkit-text-fill-color:currentColor;color:var(--brunc)}
.chal p{color:var(--mute2)}.chal p.chal-r{color:var(--mute)}
.chal-s .ic{border-radius:0;border-color:var(--line2);background:transparent;color:var(--brunc);width:48px;height:48px}
.chal-s li:not(:last-child)::after{border-color:var(--line2)}
.chal-card{display:none}
.chal .amts{gap:0;border:1px solid var(--line2)}
.chal .amts li,.chal .amts li:nth-child(1){border:0;border-radius:0;box-shadow:none;background:transparent;backdrop-filter:none;padding:18px 22px}
.chal .amts li+li{border-top:1px solid var(--line)}
.chal .amts li:nth-child(1){background:rgba(184,138,98,.08)}
.chal .amts b,.chal .amts li:nth-child(2) b,.chal .amts li:nth-child(3) b{color:var(--white);font-size:30px}
.chal .amts li:nth-child(1) b{color:var(--brunc);font-size:36px}
.chal .amts .rk,.chal .amts li:nth-child(n) .rk{color:var(--mute2)}
.chal .amts li:nth-child(1) .rk{color:var(--brunc)}
.chal-btn{border-radius:0;background:var(--brunc);color:var(--ink);height:56px;min-height:56px;font:500 11px 'IBM Plex Mono',monospace;letter-spacing:.22em;clip-path:polygon(0 0,100% 0,100% calc(100% - 12px),calc(100% - 12px) 100%,0 100%)}
.chal-btn:hover,.chal-btn:focus-visible{background:#CDA37C;transform:none;box-shadow:none}
.chal-dc{border-radius:0;border-color:var(--line2);background:var(--ink)}
.chal-pod li,.chal-me,.chal-sk{border-radius:0}
.chal-pod li{border-color:var(--line2)}.chal-pod li:nth-child(1){border-color:var(--brunc);box-shadow:none}
.chal-pod .r{border-radius:0;border-color:var(--line2);color:var(--brunc)}
.chal-pod .g,.chal-dk,.chal-me a,.chal-ft a{color:var(--brunc)}
.chal-me{background:var(--ink2)}
.chal-re{border-radius:0;border-color:var(--brunc);color:var(--brunc)}
.chal-x{border-radius:0}

/* Alternance clair / sombre : bandeau challenge et FAQ en fond clair */
.chal{background:var(--paper);color:var(--ink);border-color:var(--pline)}
.chal-k{color:var(--brun)}.chal-k i{background:var(--brun)}
.chal h2{color:var(--ink)}.chal h2 b{color:var(--brun)}
.chal p{color:#5E5B55}.chal p.chal-r{color:#77736C}
.chal-s li{color:var(--ink)}
.chal-s .ic{border-color:var(--pline);color:var(--brun);background:#fff}
.chal-s li:not(:last-child)::after{border-color:#B9B4AA}
.chal .amts{border-color:var(--pline);background:#fff}
.chal .amts li+li{border-top-color:var(--pline)}
.chal .amts li:nth-child(1){background:#F0E8DD}
.chal .amts b,.chal .amts li:nth-child(2) b,.chal .amts li:nth-child(3) b{color:var(--ink)}
.chal .amts li:nth-child(1) b{color:var(--brun)}
.chal .amts .rk,.chal .amts li:nth-child(n) .rk{color:#5E5B55}
.chal .amts li:nth-child(1) .rk{color:var(--brun)}
.chal-btn{background:var(--ink);color:var(--white)}
.chal-btn:hover,.chal-btn:focus-visible{background:#2A2622}
.light .faq{border-top-color:rgba(14,14,14,.22)}
.light .faq details{border-bottom-color:var(--pline)}
.light .faq summary .n{color:var(--brun)}
.light .faq summary .pm{border-color:rgba(14,14,14,.22)}
.light .faq summary .pm:before,.light .faq summary .pm:after{background:var(--ink)}
.light .faq details[open] summary .pm{background:var(--ink);border-color:var(--ink)}
.light .faq details[open] summary .pm:before,.light .faq details[open] summary .pm:after{background:var(--white)}
.light .faq .a{color:#5E5B55}

/* Notre approche : fond blanc */
.white{background:#fff}
.light .step,.light .approach .step{border-right-color:var(--pline)}
.light .approach{border-top-color:rgba(14,14,14,.22)}
.light .step .num{-webkit-text-stroke-color:rgba(14,14,14,.3)}
.light .step:hover .num{-webkit-text-stroke-color:var(--brun)}
.light .step p{color:#5E5B55}
.light .head h2 b{color:var(--brun)}
.chal{border-bottom:1px solid var(--pline)}
.light .idx,.light .mono.idx{color:var(--brun)}