/* Feryon — charte « lean » des présentations : blanc, Segoe UI fine, filets, un mot-clé bleu */
:root{
  --ink:#1d2330; --ink2:#465468; --mute:#8a97a8; --line:#e3e8ef; --line2:#c9d2dd;
  --blue:#4182CC; --blue-d:#2f6aae; --blue-p:rgba(65,130,204,.07);
  --font:"Segoe UI","Open Sans",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  color-scheme:light;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:#fff;color:var(--ink);font-family:var(--font);font-size:17px;line-height:1.62;font-weight:400;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img,svg{max-width:100%}
p{margin:0}
h1,h2,h3{margin:0;font-weight:300;letter-spacing:-.02em;text-wrap:balance}
h1{font-size:clamp(40px,5.4vw,74px);line-height:1.05}
h2{font-size:clamp(30px,3.4vw,46px);line-height:1.12}
h3{font-size:21px;line-height:1.3;font-weight:400;letter-spacing:-.01em}
em{font-style:normal;color:var(--blue)}
b{font-weight:400}
.wrap{width:min(1160px,100% - 48px);margin-inline:auto}
.k{display:block;font-size:12px;letter-spacing:.24em;text-transform:uppercase;color:var(--blue);font-weight:600}
.sub{font-size:clamp(20px,2.1vw,28px);font-weight:300;color:var(--blue);margin-top:18px;max-width:40ch;letter-spacing:-.01em}
.lead{color:var(--ink2);font-size:18px;max-width:62ch;margin-top:18px}
.src{color:var(--mute);font-size:13.5px;margin-top:22px;max-width:80ch}
.sel{user-select:all}
.ic{color:var(--blue);flex:none}
:focus-visible{outline:2px solid var(--blue);outline-offset:3px}

/* boutons et liens */
.btn{display:inline-flex;align-items:center;gap:12px;padding:13px 22px;border:1px solid var(--blue);color:var(--blue);background:transparent;font:inherit;font-size:15px;letter-spacing:.02em;cursor:pointer;transition:background .25s,color .25s}
.btn:hover{background:var(--blue);color:#fff}
.btn .ic{color:currentColor;transition:transform .25s}
.btn:hover .ic{transform:translateX(3px)}
.lnk{display:inline-flex;align-items:center;gap:8px;color:var(--blue);font-size:15px;border-bottom:1px solid transparent;transition:border-color .25s}
.lnk::after{content:"→";transition:transform .25s}
.lnk:hover{border-color:var(--blue)}
.lnk:hover::after{transform:translateX(3px)}

/* en-tête */
.hd{position:sticky;top:env(safe-area-inset-top,0px);z-index:40;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.hd .wrap{display:flex;align-items:center;justify-content:space-between;height:76px;gap:24px}
.brand{display:flex;align-items:center}
.logo-svg{height:22px;width:auto}
.nav{display:flex;align-items:center;gap:30px;font-size:14.5px;color:var(--ink2)}
.nav>a,.ddb{position:relative;padding-block:6px}
.nav>a:not(.cta)::after,.ddb::after{content:"";position:absolute;left:0;right:100%;bottom:0;height:1px;background:var(--blue);transition:right .3s}
.nav>a:hover,.ddb:hover{color:var(--ink)}
.nav>a:hover::after,.ddb:hover::after,.nav>a[aria-current]::after,.dd.on .ddb::after{right:0}
.nav>a[aria-current],.dd.on .ddb{color:var(--ink)}
.nav .cta{border:1px solid var(--blue);color:var(--blue);padding:9px 16px;transition:background .25s,color .25s}
.nav .cta:hover,.nav .cta[aria-current]{background:var(--blue);color:#fff}
.dd{position:relative}
.ddb{background:none;border:0;font:inherit;color:inherit;cursor:pointer;display:flex;align-items:center;gap:7px}
.ddm{position:absolute;top:calc(100% + 14px);left:-22px;width:280px;background:#fff;border:1px solid var(--line);padding:10px 0;opacity:0;visibility:hidden;transform:translateY(-4px);transition:.2s}
.dd:hover .ddm,.dd:focus-within .ddm,.dd.open .ddm{opacity:1;visibility:visible;transform:none}
.ddm a{display:flex;align-items:center;gap:14px;padding:10px 22px;color:var(--ink2)}
.ddm a:hover,.ddm a[aria-current]{color:var(--blue)}
.burger{display:none;background:none;border:0;width:40px;height:40px;cursor:pointer;flex-direction:column;justify-content:center;gap:7px;padding:8px}
.burger span{display:block;height:1px;background:var(--ink);transition:.25s}
.burger[aria-expanded="true"] span:first-child{transform:translateY(4px) rotate(45deg)}
.burger[aria-expanded="true"] span:last-child{transform:translateY(-4px) rotate(-45deg)}
@media(max-width:920px){
  .burger{display:flex}
  .nav{position:absolute;left:0;right:0;top:76px;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;gap:0;padding:8px 24px 24px;display:none}
  .nav.open{display:flex}
  .nav>a,.ddb{padding:14px 0;border-bottom:1px solid var(--line);width:100%}
  .nav>a::after,.ddb::after{display:none}
  .ddm{position:static;opacity:1;visibility:visible;transform:none;border:0;width:auto;padding:0 0 8px;display:none}
  .dd.open .ddm{display:block}
  .ddm a{padding:10px 0}
  .nav .cta{margin-top:18px;text-align:center;justify-content:center}
}

/* accueil */
.hero{padding-top:clamp(40px,5vw,64px)}
.hero h1{max-width:20ch;margin-top:0;font-size:clamp(46px,6.4vw,92px);line-height:1.02}
.hero .sub{max-width:52ch}
.acts{display:flex;align-items:center;gap:30px;flex-wrap:wrap;margin-top:30px}
.art{margin-top:clamp(8px,2vw,24px);overflow:hidden}
.farm{display:block;width:100%;height:clamp(220px,27vw,390px)}
.spec{display:flex;flex-wrap:wrap;gap:6px 0;color:var(--mute);font-size:14px;padding-block:18px 0}
.spec span+span::before{content:"·";margin-inline:14px}

/* animations du dessin : images-clés générées dans le SVG (build_site_lean.py, hero_art) */
.farm .drawg polygon{stroke-dasharray:1;stroke-dashoffset:1;animation:draw 1.8s cubic-bezier(.4,0,.2,1) .15s forwards}
@keyframes draw{to{stroke-dashoffset:0}}

/* sections */
section{padding-block:clamp(64px,8vw,104px)}
section+section{border-top:1px solid var(--line)}
section.alt{background:#fbfcfd}
.sh{margin-bottom:44px}
.sh h2{margin-top:12px;max-width:24ch}
.ph{padding-block:clamp(56px,7vw,96px) clamp(40px,5vw,64px)}
.ph h1{margin-top:16px;max-width:18ch}
.ph .lead{font-size:19px;margin-top:22px}

/* filets qui se tracent */
.ln{position:relative}
.ln::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:var(--ink);transform-origin:left;transition:transform 1.2s cubic-bezier(.4,0,.2,1)}
.pre .ln::before,.ln.pre::before{transform:scaleX(0)}

/* chiffres */
.kpi{display:grid;grid-template-columns:repeat(4,1fr);gap:36px}
.kpi>div{position:relative;padding-top:18px}
.kpi>div::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:var(--ink);transform-origin:left;transition:transform 1.2s cubic-bezier(.4,0,.2,1)}
.kpi.pre>div::before{transform:scaleX(0)}
.kpi small{display:flex;align-items:center;gap:8px;font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--mute);font-weight:600}
.kpi .v{font-size:clamp(40px,4.4vw,58px);font-weight:300;line-height:1.1;margin-top:12px;letter-spacing:-.03em;font-variant-numeric:tabular-nums;white-space:nowrap}
.kpi .v i{font-style:normal;font-size:.36em;color:var(--mute);margin-left:6px;letter-spacing:0}
.kpi .first .v{color:var(--blue)}
.kpi p{color:var(--ink2);font-size:15px;margin-top:8px}
.kpi2{grid-template-columns:1fr 1fr;gap:28px 32px}
.kpi3{grid-template-columns:repeat(3,1fr)}
@media(max-width:900px){.kpi{grid-template-columns:1fr 1fr}}
@media(max-width:460px){.kpi{grid-template-columns:1fr}}

/* lignes de solutions */
.srows{border-top:1px solid var(--ink)}
.srow{display:grid;grid-template-columns:52px 300px 1fr 30px;align-items:center;gap:20px;padding:24px 0;border-bottom:1px solid var(--line);transition:padding .3s}
.srow b{font-size:22px;font-weight:300;letter-spacing:-.01em;transition:color .25s}
.srow span{color:var(--ink2);font-size:16px}
.srow .go{color:var(--mute);transition:transform .25s,color .25s}
.srow:hover{padding-left:8px}
.srow:hover b{color:var(--blue)}
.srow:hover .go{color:var(--blue);transform:translateX(4px)}
@media(max-width:760px){.srow{grid-template-columns:40px 1fr 24px;gap:6px 14px}.srow span{grid-column:2;grid-row:2}.srow .go{grid-row:1/3;grid-column:3}}

.rows{border-top:1px solid var(--ink)}
.row{display:grid;grid-template-columns:44px 260px 1fr;align-items:baseline;gap:18px;padding:20px 0;border-bottom:1px solid var(--line)}
.row .ic{align-self:center}
.row b{font-size:19px;font-weight:400}
.row span{color:var(--ink2);font-size:16px}
@media(max-width:760px){.row{grid-template-columns:36px 1fr;gap:4px 14px}.row span{grid-column:2}}

/* arbre */
.tree{display:grid;grid-template-columns:1fr 1fr;column-gap:64px}
.tree-l{grid-column:1/-1;width:100%;height:56px;margin:0 0 18px;display:block}
.tree-l path{stroke-dasharray:1;stroke-dashoffset:0;transition:stroke-dashoffset 1.4s cubic-bezier(.4,0,.2,1)}
.tree.pre .tree-l path{stroke-dashoffset:1}
.br{border-top:1px solid var(--ink);padding-top:22px}
.br h3{font-size:28px;font-weight:300;margin-top:8px}
.br ul{list-style:none;margin:20px 0 22px;padding:0}
.br li{display:flex;align-items:center;gap:14px;padding:11px 0;border-bottom:1px solid var(--line);color:var(--ink2)}
@media(max-width:760px){.tree{grid-template-columns:1fr;row-gap:36px}.tree-l{display:none}}

/* trois colonnes */
.three{display:grid;grid-template-columns:repeat(3,1fr);gap:40px}
.three>div,.two-cols>div{position:relative;padding-top:24px}
.three>div::before,.two-cols>div::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:var(--ink);transform-origin:left;transition:transform 1.2s cubic-bezier(.4,0,.2,1)}
.three>div.on::before{background:var(--blue)}
.three.pre>div::before,.two-cols.pre>div::before{transform:scaleX(0)}
.three .k,.two-cols .k{margin-top:16px}
.three h3,.two-cols h3{margin-top:10px}
.three p,.two-cols p{color:var(--ink2);font-size:16px;margin-top:10px}
.three .big{font-size:clamp(40px,4vw,54px);font-weight:300;color:var(--blue);line-height:1;letter-spacing:-.03em}
.three .big+.k{margin-top:18px}
.two-cols{display:grid;grid-template-columns:1fr 1fr;gap:56px}
@media(max-width:860px){.three,.two-cols{grid-template-columns:1fr;gap:36px}}

/* deux blocs */
.two{display:grid;grid-template-columns:1fr 1fr;gap:clamp(36px,6vw,80px);align-items:center}
.two h2{margin-top:12px}
.two h3{font-size:24px;font-weight:300;margin-top:10px}
.two p:not(.lead):not(.src){color:var(--ink2);margin-top:12px}
.two .lnk{margin-top:24px}
figure{margin:0}
figcaption{color:var(--mute);font-size:13px;margin-top:10px}
@media(max-width:860px){.two{grid-template-columns:1fr}}

/* graphiques */
.chart{display:block;width:100%;height:auto;font-family:var(--font);overflow:visible}
.chart .ax{fill:var(--mute);font-size:12px}
.chart .v{fill:var(--ink);font-size:13px}
.chart .v.on{fill:var(--blue)}
.chart .lb{fill:var(--blue);font-size:12.5px;letter-spacing:.02em}
.bars .bar{transform-box:fill-box;transform-origin:bottom;transition:transform 1s cubic-bezier(.4,0,.2,1);transition-delay:calc(var(--i) * 90ms)}
.pre .bars .bar{transform:scaleY(0)}
.drawline{stroke-dasharray:1;stroke-dashoffset:0;transition:stroke-dashoffset 2s cubic-bezier(.4,0,.2,1)}
.pre .drawline{stroke-dashoffset:1}

/* transformateur */
.tbars{display:grid;gap:34px}
.tbars small{display:block;font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--mute);font-weight:600;margin-bottom:10px}
.tb{display:flex;height:40px;gap:4px}
.tb i{font-style:normal;display:flex;align-items:center;padding-inline:12px;font-size:13.5px;width:var(--w);transition:width 1.2s cubic-bezier(.4,0,.2,1);white-space:nowrap;overflow:hidden}
.tb .full{background:var(--blue);color:#fff}
.tb .out{border:1px solid var(--blue);color:var(--blue)}
.pre .tb i{width:0}
.tbars p{color:var(--ink2);font-size:15px;margin-top:10px}

/* étapes */
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:28px 32px}
.steps.ten{grid-template-columns:repeat(5,1fr)}
.steps.six{grid-template-columns:repeat(3,1fr)}
.steps.compact{grid-template-columns:1fr 1fr;margin-top:26px}
.steps li{position:relative;padding-top:16px}
.steps li::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:var(--ink);transform-origin:left;transition:transform 1s cubic-bezier(.4,0,.2,1)}
.steps li:nth-child(2)::before{transition-delay:.12s}.steps li:nth-child(3)::before{transition-delay:.24s}.steps li:nth-child(4)::before{transition-delay:.36s}.steps li:nth-child(5)::before{transition-delay:.48s}
.steps.pre li::before{transform:scaleX(0)}
.steps .n{font-size:12px;letter-spacing:.2em;color:var(--blue);font-weight:600}
.steps b{display:block;font-size:19px;margin-top:8px}
.steps em{display:block;color:var(--mute);font-size:13px;letter-spacing:.04em;margin-top:2px}
.steps span{display:block;color:var(--ink2);font-size:15px;margin-top:8px}
section .steps+.lnk{margin-top:36px}
@media(max-width:1000px){.steps.ten{grid-template-columns:repeat(2,1fr)}}
@media(max-width:860px){.steps,.steps.six{grid-template-columns:1fr 1fr}}
@media(max-width:480px){.steps,.steps.six,.steps.ten,.steps.compact{grid-template-columns:1fr}}

/* chaîne du Flex */
.chain{position:relative;display:grid;grid-template-columns:repeat(5,1fr);gap:20px;text-align:center}
.chain .flowline{position:absolute;left:10%;right:10%;top:27px;width:80%;height:10px;z-index:0}
.chain .flowline line{animation:flow 1.1s linear infinite}
.node{position:relative;z-index:1;display:flex;flex-direction:column;align-items:center}
.node .ic{width:56px;height:56px;padding:14px;border:1px solid var(--blue);border-radius:50%;background:#fff;transition:background .3s}
.node:hover .ic{background:var(--blue-p)}
.node b{font-size:17px;margin-top:16px}
.node span{color:var(--ink2);font-size:14.5px;margin-top:6px;max-width:22ch}
.chain+.src{text-align:center;margin-inline:auto;margin-top:40px}
@media(max-width:860px){.chain{grid-template-columns:1fr;gap:28px;text-align:left}.chain .flowline{display:none}.node{flex-direction:row;flex-wrap:wrap;column-gap:18px;align-items:center}.node b{margin-top:0}.node span{flex-basis:100%;padding-left:74px;margin-top:0}.chain+.src{text-align:left}}

/* listes à coches, notes */
.checks{list-style:none;padding:0;margin:22px 0 0}
.checks li{display:flex;gap:14px;align-items:flex-start;padding:10px 0;border-bottom:1px solid var(--line);color:var(--ink2)}
.checks .ic{margin-top:3px}
.note{border-left:1px solid var(--blue);padding:6px 0 6px 28px}
.note p{color:var(--ink2);font-size:17px;margin-top:12px}
.note .src{font-size:14px}

/* public */
.aud{display:grid;grid-template-columns:repeat(5,1fr);gap:28px}
.aud>div{border-top:1px solid var(--ink);padding-top:20px;display:flex;flex-direction:column;gap:6px}
.aud b{font-size:18px;margin-top:10px}
.aud span{color:var(--ink2);font-size:15px}
@media(max-width:1000px){.aud{grid-template-columns:repeat(3,1fr)}}
@media(max-width:620px){.aud{grid-template-columns:1fr 1fr}}

/* bandeau d'appel */
.band{border-top:1px solid var(--ink)!important}
.band .wrap{display:flex;justify-content:space-between;align-items:flex-end;gap:32px;flex-wrap:wrap}
.band p{color:var(--ink2);margin-top:14px;max-width:58ch}

/* actualités */
.art-note .meta{margin-bottom:40px}
.art-note .meta h2{margin-top:12px}
.art-note>.two{align-items:start;margin-bottom:36px}
.art-note>.lead{margin-top:8px}
.art-note .rows{margin-top:44px}

/* contact */
.coord{list-style:none;padding:0;margin:0;border-top:1px solid var(--ink)}
.coord li{display:flex;gap:18px;align-items:flex-start;padding:20px 0;border-bottom:1px solid var(--line);font-size:17px}
.coord .ic{margin-top:3px}
.contact{align-items:start}
.form{display:grid;grid-template-columns:1fr 1fr;gap:22px 28px}
.form.one{grid-template-columns:1fr}
.form label{display:grid;gap:6px;font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--mute);font-weight:600}
.form input[type=text],.form input[type=email],.form input[type=tel],.form input[type=password],.form textarea{width:100%;border:0;border-bottom:1px solid var(--line2);background:transparent;padding:10px 0;font:inherit;font-size:17px;color:var(--ink);letter-spacing:0;text-transform:none;font-weight:400;border-radius:0;transition:border-color .25s}
.form input:focus,.form textarea:focus{outline:none;border-bottom-color:var(--blue)}
.form textarea{resize:vertical}
.form .full{grid-column:1/-1}
.form fieldset{border:0;padding:0;margin:0}
.form legend{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--mute);font-weight:600;margin-bottom:12px}
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chips label{display:block;letter-spacing:0;text-transform:none;font-weight:400;font-size:15px;color:var(--ink2);cursor:pointer}
.chips input{position:absolute;opacity:0;pointer-events:none}
.chips span{display:block;border:1px solid var(--line2);padding:8px 14px;transition:.2s}
.chips input:checked+span{border-color:var(--blue);color:var(--blue);background:var(--blue-p)}
.chips input:focus-visible+span{outline:2px solid var(--blue);outline-offset:2px}
.form .btn{justify-self:start}
.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.msg{grid-column:1/-1;border-left:1px solid var(--blue);padding:4px 0 4px 18px;color:var(--ink2)}
@media(max-width:620px){.form{grid-template-columns:1fr}}

.legal{max-width:72ch}
.legal h3{margin-top:34px;font-size:12px;letter-spacing:.24em;text-transform:uppercase;color:var(--blue);font-weight:600}
.legal h3:first-child{margin-top:0}
.legal p{color:var(--ink2);margin-top:10px}

/* pied de page */
.ft{border-top:1px solid var(--ink);padding-block:56px 28px;font-size:14.5px;color:var(--ink2)}
.ft .wrap:first-child{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px}
.ft small{display:block;font-size:11.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--mute);font-weight:600;margin-bottom:12px}
.ft a,.ft span{display:block;padding-block:3px}
.ft a:hover{color:var(--blue)}
.ft-a p{margin-top:16px;max-width:30ch;color:var(--mute)}
.ft-b{display:flex!important;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:44px;padding-top:20px;border-top:1px solid var(--line);color:var(--mute);font-size:13px}
.ft-b span,.ft-b a{padding:0}
.adv{display:inline-flex!important;align-items:center;gap:8px}
.adv .ic{color:var(--mute)}
@media(max-width:860px){.ft .wrap:first-child{grid-template-columns:1fr 1fr}}
@media(max-width:480px){.ft .wrap:first-child{grid-template-columns:1fr}}

/* connexion conseillers */
body.login main{min-height:100vh;display:grid;place-items:center;padding:24px}
.login .box{width:min(420px,100%)}
.login .box .k{margin-top:40px}
.login .box h1{font-size:44px;margin-top:12px}
.login .form{margin-top:32px}

/* apparition au défilement (visible au repos, n'anime que ce qui est sous la ligne de flottaison) */
.reveal{transition:opacity .8s ease,transform .8s ease}
.reveal.pre{opacity:0;transform:translateY(16px)}

.preview-flag{position:fixed;left:16px;bottom:calc(16px + env(safe-area-inset-bottom,0px));z-index:60;background:#fff;border:1px solid var(--line2);color:var(--mute);font-size:12px;padding:6px 10px;letter-spacing:.04em}

@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .reveal.pre{opacity:1;transform:none}
  .farm .drawg polygon{stroke-dashoffset:0}
  .farm .dots{display:none}
}

.lead .lnk::after{content:none}
.lead .lnk{border-bottom-color:rgba(65,130,204,.35)}

/* --- version simplifiée : blocs qui se déplient --- */
.tog{background:none;border:0;padding:0;cursor:pointer;font:inherit}
.tog::after{content:"↓"}
.tog[aria-expanded=true]::after{content:"↑"}
.more{margin-top:clamp(40px,5vw,64px);padding-top:clamp(40px,5vw,64px);border-top:1px solid var(--line)}
.more[hidden]{display:none}
.more,#conseil,#batterie,#optimisation,#prix-negatifs,#cel{scroll-margin-top:96px}
.tree.t3{grid-template-columns:repeat(3,1fr);column-gap:48px}
@media(max-width:960px){.tree.t3{grid-template-columns:1fr;row-gap:40px}}
.br p.lead{margin-top:14px}