:root{
  --ink:#15171E;
  --ink-soft:#3A3E4A;
  --kon:#152845;        /* indigo profond — couleur de marque dominante */
  --kon-2:#22406E;
  --kon-3:#3D6098;
  --shu:#E1483A;        /* vermillon — accent rare */
  --shu-deep:#B93326;
  --paper:#F4EFE3;      /* washi — surface chaude, employée avec retenue */
  --bg:#FBFAF6;
  --white:#FFFFFF;
  --line:rgba(21,23,30,.13);
  --line-soft:rgba(21,23,30,.07);
  --shadow:0 1px 2px rgba(21,40,69,.05), 0 12px 34px -18px rgba(21,40,69,.28);
  --f-display:"Shippori Mincho B1", Georgia, serif;
  --f-sans:"Zen Kaku Gothic New", system-ui, -apple-system, "Segoe UI", sans-serif;
  --f-mono:"Space Mono", ui-monospace, "Cascadia Code", monospace;
  --maxw:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--f-sans);font-size:17px;line-height:1.65;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
h1,h2,h3{line-height:1.12;margin:0;font-weight:900;letter-spacing:-.01em}
p{margin:0}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.mono{font-family:var(--f-mono);font-size:.72rem;letter-spacing:.22em;text-transform:uppercase}
.serif{font-family:var(--f-display)}

/* --- label / index japonais --- */
.eyebrow{display:inline-flex;align-items:center;gap:11px;color:var(--shu);font-weight:700}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--shu)}
.sec-index{font-family:var(--f-mono);font-size:.72rem;letter-spacing:.2em;color:var(--kon-3);
  display:flex;align-items:center;gap:10px}
.sec-index b{font-family:var(--f-display);font-weight:800;font-size:1.05rem;color:var(--kon);letter-spacing:0}

/* --- boutons --- */
.btn{display:inline-flex;align-items:center;gap:10px;padding:15px 26px;border-radius:2px;
  font-weight:700;font-size:.98rem;transition:transform .18s ease, box-shadow .18s ease, background .18s;
  border:1px solid transparent;cursor:pointer}
.btn-primary{background:var(--shu);color:#fff;box-shadow:0 10px 26px -12px rgba(225,72,58,.7)}
.btn-primary:hover{transform:translateY(-2px);background:var(--shu-deep)}
.btn-ghost{border-color:var(--line);color:var(--ink);background:transparent}
.btn-ghost:hover{border-color:var(--kon);color:var(--kon);transform:translateY(-2px)}
.btn .arw{transition:transform .2s}
.btn:hover .arw{transform:translateX(4px)}

/* ===== HEADER ===== */
header.site{position:sticky;top:0;z-index:60;background:rgba(251,250,246,.86);
  backdrop-filter:blur(12px);border-bottom:1px solid var(--line-soft)}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px}
.brand{display:flex;align-items:center;gap:13px;font-weight:900;font-size:1.28rem;letter-spacing:-.02em}
.seal{width:40px;height:40px;flex:0 0 40px;border-radius:50%;background:var(--shu);color:#fff;
  display:grid;place-items:center;font-family:var(--f-display);font-weight:800;font-size:1.15rem;
  box-shadow:0 6px 16px -6px rgba(225,72,58,.6);position:relative}
.seal::after{content:"";position:absolute;inset:3px;border:1px solid rgba(255,255,255,.5);border-radius:50%}
.brand small{display:block;font-family:var(--f-mono);font-size:.56rem;letter-spacing:.28em;
  color:var(--kon-3);font-weight:400;margin-top:1px}
.nav-links{display:flex;align-items:center;gap:30px}
.nav-links a{font-size:.94rem;font-weight:500;color:var(--ink-soft);position:relative}
.nav-links a:hover{color:var(--ink)}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:2px;background:var(--shu);transition:width .22s}
.nav-links a:hover::after{width:100%}
.nav-cta{display:flex;align-items:center;gap:16px}
.burger{display:none;background:none;border:0;cursor:pointer;padding:8px}
.burger span{display:block;width:24px;height:2px;background:var(--ink);margin:5px 0;transition:.25s}

/* ===== HERO ===== */
.hero{position:relative;padding:78px 0 40px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.hero h1{font-size:clamp(2.6rem,6vw,4.6rem);letter-spacing:-.03em}
.hero h1 .em{font-family:var(--f-display);font-weight:800;font-style:normal;color:var(--kon);display:inline}
.hero h1 .red{color:var(--shu)}
.hero .lede{font-size:1.16rem;color:var(--ink-soft);margin-top:24px;max-width:33ch}
.hero-cta{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap}
.hero-eyebrow{margin-bottom:26px}
.kaizen{font-family:var(--f-display);font-size:.95rem;color:var(--kon-3);margin-top:30px;
  display:flex;align-items:center;gap:12px}
.kaizen .kanji{font-size:1.5rem;color:var(--shu)}

/* growth-curve panneau signature */
.hero-viz{position:relative;aspect-ratio:1/1;min-height:340px}
.viz-card{position:absolute;inset:0;background:var(--kon);border-radius:4px;overflow:hidden;
  box-shadow:var(--shadow)}
.viz-card .grid-lines{position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:44px 44px}
.viz-label{position:absolute;font-family:var(--f-mono);font-size:.62rem;letter-spacing:.16em;color:rgba(255,255,255,.5)}
.viz-svg{position:absolute;inset:0;width:100%;height:100%}
.viz-path{fill:none;stroke:var(--shu);stroke-width:3;stroke-linecap:round;
  stroke-dasharray:1200;stroke-dashoffset:1200;animation:draw 2.4s .3s cubic-bezier(.6,.05,.25,1) forwards}
.viz-area{fill:url(#g1);opacity:0;animation:fadein 1.4s 1.9s forwards}
.viz-dot{fill:#fff;stroke:var(--shu);stroke-width:3;opacity:0;animation:pop .5s 2.5s forwards}
.viz-badge{position:absolute;right:18px;top:18px;background:#fff;color:var(--kon);border-radius:3px;
  padding:11px 15px;box-shadow:0 8px 20px -8px rgba(0,0,0,.4)}
.viz-badge .n{font-family:var(--f-display);font-weight:800;font-size:1.5rem;line-height:1}
.viz-badge .l{font-family:var(--f-mono);font-size:.55rem;letter-spacing:.14em;color:var(--kon-3)}
@keyframes draw{to{stroke-dashoffset:0}}
@keyframes fadein{to{opacity:.9}}
@keyframes pop{to{opacity:1}}

/* bande stats */
.stats{border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-top:56px}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:34px 26px;border-right:1px solid var(--line-soft)}
.stat:last-child{border-right:0}
.stat .n{font-family:var(--f-display);font-weight:800;font-size:2.5rem;color:var(--kon);letter-spacing:-.02em;line-height:1}
.stat .n .u{color:var(--shu)}
.stat .l{color:var(--ink-soft);font-size:.9rem;margin-top:8px}

/* ===== sections génériques ===== */
section{padding:96px 0}
.sec-head{max-width:720px;margin-bottom:56px}
.sec-head h2{font-size:clamp(1.9rem,4vw,3rem);margin-top:18px;letter-spacing:-.025em}
.sec-head p{color:var(--ink-soft);font-size:1.1rem;margin-top:18px}

/* services */
.svc{background:var(--paper)}
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2px;background:var(--line-soft);
  border:1px solid var(--line-soft)}
.svc-item{background:var(--bg);padding:38px 32px;transition:background .25s, transform .25s;position:relative}
.svc-item:hover{background:#fff;transform:translateY(-3px);z-index:2;box-shadow:var(--shadow)}
.svc-item .num{font-family:var(--f-mono);font-size:.72rem;color:var(--shu);letter-spacing:.2em}
.svc-item h3{font-size:1.35rem;margin:16px 0 12px;font-weight:700}
.svc-item p{color:var(--ink-soft);font-size:.98rem}
.svc-item .go{margin-top:20px;display:inline-flex;align-items:center;gap:8px;color:var(--kon);
  font-weight:700;font-size:.9rem}
.svc-item:hover .go{color:var(--shu)}

/* rôle agence — split */
.role{background:var(--kon);color:#fff}
.role .wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:60px;align-items:center}
.role h2{color:#fff;font-size:clamp(1.9rem,4vw,2.8rem)}
.role .eyebrow{color:#FF8A7A}
.role .eyebrow::before{background:#FF8A7A}
.role p{color:rgba(255,255,255,.78);margin-top:20px;font-size:1.06rem}
.role .quote{font-family:var(--f-display);font-weight:500;font-size:1.5rem;line-height:1.5;
  color:#fff;border-left:3px solid var(--shu);padding-left:26px}
.role .quote span{color:#FFB4A8}

/* process */
.proc-steps{display:grid;grid-template-columns:repeat(5,1fr);gap:0;counter-reset:step;
  border-top:1px solid var(--line)}
.step{padding:34px 22px 30px;border-right:1px solid var(--line-soft);position:relative}
.step:last-child{border-right:0}
.step::before{counter-increment:step;content:"0" counter(step);
  font-family:var(--f-display);font-weight:800;font-size:2.6rem;color:var(--paper);line-height:1;
  display:block;margin-bottom:14px;-webkit-text-stroke:1px var(--line)}
.step.active::before{color:var(--shu);-webkit-text-stroke:0}
.step h3{font-size:1.12rem;font-weight:700}
.step p{color:var(--ink-soft);font-size:.92rem;margin-top:10px}
.step .tick{position:absolute;top:-1px;left:0;width:0;height:3px;background:var(--shu);
  transition:width 1s ease}
.step.reveal .tick{width:44px}

/* résultats / témoignages */
.proof{background:var(--paper)}
.tgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.tcard{background:#fff;border:1px solid var(--line-soft);border-radius:4px;padding:30px 28px;
  box-shadow:var(--shadow);display:flex;flex-direction:column;gap:18px}
.tcard .stars{color:var(--shu);letter-spacing:3px;font-size:.9rem}
.tcard .txt{font-family:var(--f-display);font-size:1.08rem;line-height:1.55;color:var(--ink)}
.tcard .who{display:flex;align-items:center;gap:12px;margin-top:auto}
.tcard .who .av{width:40px;height:40px;border-radius:50%;background:var(--kon);color:#fff;
  display:grid;place-items:center;font-weight:700;font-family:var(--f-display)}
.tcard .who b{display:block;font-size:.92rem}
.tcard .who small{color:var(--ink-soft);font-size:.8rem}

/* FAQ */
.faq-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:56px;align-items:start}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{width:100%;text-align:left;background:none;border:0;cursor:pointer;padding:24px 40px 24px 0;
  font-family:var(--f-sans);font-size:1.12rem;font-weight:700;color:var(--ink);position:relative;
  display:flex;gap:16px;align-items:baseline}
.faq-q .qmark{font-family:var(--f-display);color:var(--shu);font-weight:800}
.faq-q .pm{position:absolute;right:0;top:50%;transform:translateY(-50%);width:20px;height:20px}
.faq-q .pm::before,.faq-q .pm::after{content:"";position:absolute;background:var(--kon);
  left:50%;top:50%;transition:.25s}
.faq-q .pm::before{width:14px;height:2px;transform:translate(-50%,-50%)}
.faq-q .pm::after{width:2px;height:14px;transform:translate(-50%,-50%)}
.faq-item.open .pm::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a p{color:var(--ink-soft);padding:0 40px 26px 34px;font-size:1rem}

/* CTA final */
.cta{background:var(--kon);color:#fff;text-align:center;position:relative;overflow:hidden}
.cta .kanji-bg{position:absolute;font-family:var(--f-display);font-weight:800;
  font-size:34rem;color:rgba(255,255,255,.04);top:50%;left:50%;transform:translate(-50%,-50%);
  pointer-events:none;line-height:1}
.cta h2{color:#fff;font-size:clamp(2rem,5vw,3.4rem);position:relative}
.cta p{color:rgba(255,255,255,.8);max-width:44ch;margin:20px auto 0;position:relative;font-size:1.12rem}
.cta .hero-cta{justify-content:center;position:relative}
.cta .btn-ghost{border-color:rgba(255,255,255,.35);color:#fff}
.cta .btn-ghost:hover{border-color:#fff;color:#fff}

/* certifications */
.certs{padding:60px 0;border-top:1px solid var(--line)}
.certs .wrap{display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap}
.certs .lab{font-family:var(--f-mono);font-size:.7rem;letter-spacing:.2em;color:var(--kon-3);text-transform:uppercase}
.certs .logos{display:flex;gap:38px;flex-wrap:wrap;align-items:center}
.certs .logos span{font-weight:700;color:var(--ink-soft);font-size:1.05rem;opacity:.72}

/* footer */
footer{background:#0F1B30;color:rgba(255,255,255,.7);padding:70px 0 34px;font-size:.92rem}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
footer h4{color:#fff;font-size:.8rem;font-family:var(--f-mono);letter-spacing:.18em;text-transform:uppercase;margin:0 0 18px;font-weight:400}
footer ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
footer a:hover{color:var(--shu)}
footer .brand{color:#fff;margin-bottom:16px}
footer .brand small{color:rgba(255,255,255,.5)}
.foot-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:50px;padding-top:24px;
  display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:.82rem;color:rgba(255,255,255,.5)}

/* reveal */
.rev{opacity:0;transform:translateY(22px);transition:opacity .7s ease, transform .7s ease}
.rev.in{opacity:1;transform:none}

/* responsive */
@media(max-width:960px){
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-viz{max-width:420px}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(2){border-right:0}.stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--line-soft)}
  .svc-grid{grid-template-columns:repeat(2,1fr)}
  .role .wrap{grid-template-columns:1fr;gap:34px}
  .proc-steps{grid-template-columns:repeat(2,1fr);border-top:0}
  .step{border-bottom:1px solid var(--line-soft)}
  .tgrid{grid-template-columns:1fr}
  .faq-wrap{grid-template-columns:1fr;gap:32px}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:680px){
  .nav-links,.nav-cta .btn{display:none}
  .burger{display:block}
  .nav-links.open{display:flex;position:absolute;top:74px;left:0;right:0;flex-direction:column;
    background:var(--bg);padding:24px;gap:18px;border-bottom:1px solid var(--line);box-shadow:var(--shadow)}
  .svc-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr 1fr}
  .foot-grid{grid-template-columns:1fr}
  section{padding:66px 0}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto}
  .rev{opacity:1;transform:none}
  .viz-path{stroke-dashoffset:0}.viz-area{opacity:.9}.viz-dot{opacity:1}
}


/* ===== Pages internes ===== */
.breadcrumb{font-family:var(--f-mono);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--kon-3);margin-bottom:22px;display:flex;gap:8px;flex-wrap:wrap}
.breadcrumb a{color:var(--kon-3)}
.breadcrumb a:hover{color:var(--shu)}
.breadcrumb .sep{opacity:.5}
.page-hero{padding:56px 0 40px;background:var(--paper);border-bottom:1px solid var(--line-soft)}
.page-hero h1{font-size:clamp(2rem,4.5vw,3.3rem);letter-spacing:-.025em;max-width:20ch}
.page-hero .lede{font-size:1.14rem;color:var(--ink-soft);margin-top:20px;max-width:60ch}
.page-hero .hero-cta{margin-top:28px}
.content{padding:70px 0 90px}
.prose-wrap{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:56px;align-items:start}
.prose{max-width:none}
.prose h2{font-size:clamp(1.5rem,2.6vw,2rem);letter-spacing:-.02em;margin:44px 0 16px;font-weight:900}
.prose h2:first-child{margin-top:0}
.prose p{margin:0 0 18px;color:var(--ink-soft);font-size:1.06rem;line-height:1.7}
.prose strong{color:var(--ink);font-weight:700}
.prose ul{margin:0 0 20px;padding:0;list-style:none}
.prose li{position:relative;padding-left:26px;margin-bottom:11px;color:var(--ink-soft);line-height:1.6}
.prose li::before{content:"";position:absolute;left:0;top:11px;width:9px;height:9px;background:var(--shu);border-radius:1px;transform:rotate(45deg)}
.highlights{background:var(--white);border:1px solid var(--line-soft);border-left:3px solid var(--shu);border-radius:3px;padding:22px 26px;margin:0 0 38px;box-shadow:var(--shadow)}
.highlights ul{margin:0;padding:0;list-style:none;display:grid;gap:10px}
.highlights li{position:relative;padding-left:26px;color:var(--ink);font-weight:500}
.highlights li::before{content:"改";position:absolute;left:0;top:0;font-family:var(--f-display);color:var(--shu);font-size:.95rem}
.faq-block{margin-top:46px}
.faq-block h2{margin-bottom:10px}
aside.side{position:sticky;top:96px;display:flex;flex-direction:column;gap:22px}
.sidecard{background:var(--kon);color:#fff;border-radius:4px;padding:26px;box-shadow:var(--shadow)}
.sidecard h3{font-size:1.15rem;color:#fff;margin-bottom:10px}
.sidecard p{color:rgba(255,255,255,.8);font-size:.94rem;margin-bottom:18px}
.sidecard .btn-primary{width:100%;justify-content:center}
.related-card{background:var(--white);border:1px solid var(--line-soft);border-radius:4px;padding:22px 24px;box-shadow:var(--shadow)}
.related-card h3{font-size:.78rem;font-family:var(--f-mono);letter-spacing:.16em;text-transform:uppercase;color:var(--kon-3);margin-bottom:14px;font-weight:400}
.related-card ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column}
.related-card li{border-top:1px solid var(--line-soft)}
.related-card li:first-child{border-top:0}
.related-card a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:11px 0;font-weight:600;color:var(--ink);font-size:.96rem}
.related-card a:hover{color:var(--shu)}
.related-card a .ar{color:var(--shu);transition:transform .2s}
.related-card a:hover .ar{transform:translateX(4px)}
/* Blog index */
.blog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{display:flex;flex-direction:column;background:var(--white);border:1px solid var(--line-soft);border-radius:4px;padding:26px 24px;box-shadow:var(--shadow);transition:transform .2s}
.post-card:hover{transform:translateY(-3px)}
.post-card .cat{font-family:var(--f-mono);font-size:.66rem;letter-spacing:.16em;color:var(--shu);text-transform:uppercase}
.post-card h2{font-size:1.2rem;margin:12px 0 10px;font-weight:700}
.post-card p{color:var(--ink-soft);font-size:.95rem;flex:1}
.post-card .go{margin-top:16px;color:var(--kon);font-weight:700;font-size:.9rem}
.post-card:hover .go{color:var(--shu)}
.blog-hub{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:8px}
/* Legal / text pages */
.legal{max-width:760px}
.legal h2{font-size:1.35rem;margin:38px 0 14px;font-weight:800}
.legal p,.legal li{color:var(--ink-soft);line-height:1.7}
.legal a{color:var(--shu);font-weight:600}
.legal .datacard{background:var(--paper);border:1px solid var(--line-soft);border-radius:4px;padding:22px 26px;margin:22px 0}
.legal dl{display:grid;grid-template-columns:auto 1fr;gap:8px 20px;margin:0}
.legal dt{font-weight:700;color:var(--ink)}
.legal dd{margin:0;color:var(--ink-soft)}
/* Contact */
.contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:start}
.contact-form{background:var(--white);border:1px solid var(--line-soft);border-radius:4px;padding:32px;box-shadow:var(--shadow)}
.contact-form label{display:block;font-weight:600;font-size:.9rem;margin:0 0 7px}
.contact-form .field{margin-bottom:18px}
.contact-form input,.contact-form textarea{width:100%;padding:13px 15px;border:1px solid var(--line);border-radius:3px;font-family:inherit;font-size:1rem;background:var(--bg)}
.contact-form input:focus,.contact-form textarea:focus{outline:2px solid var(--kon-3);border-color:transparent}
.contact-info .ci{display:flex;gap:14px;margin-bottom:22px}
.contact-info .ci .k{font-family:var(--f-mono);font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;color:var(--kon-3)}
.contact-info .ci .v{font-weight:600;color:var(--ink)}
/* Pilier */
.toc{background:var(--paper);border:1px solid var(--line-soft);border-radius:4px;padding:22px 26px;margin:0 0 34px}
.toc h3{font-family:var(--f-mono);font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--kon-3);font-weight:400;margin-bottom:12px}
.toc ol{margin:0;padding-left:20px;columns:2;gap:24px}
.toc li{margin-bottom:8px}
.toc a{color:var(--ink);font-weight:500}
.toc a:hover{color:var(--shu)}
.citychips{display:flex;flex-wrap:wrap;gap:10px;margin:8px 0 4px}
.citychips a{display:inline-block;padding:8px 15px;border:1px solid var(--line);border-radius:2px;font-weight:600;font-size:.92rem;color:var(--kon);background:var(--white)}
.citychips a:hover{border-color:var(--shu);color:var(--shu)}
@media(max-width:900px){
  .prose-wrap{grid-template-columns:1fr;gap:34px}
  aside.side{position:static}
  .blog-grid{grid-template-columns:1fr 1fr}
  .contact-grid{grid-template-columns:1fr}
  .toc ol{columns:1}
  .blog-hub{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){ .blog-grid{grid-template-columns:1fr} }