/* CONCORDIA — feuille de style du site
   Concept : « le lac à l'aube ». Bandes bleu nuit et paysage pour les moments forts,
   sections blanches très aérées pour la lecture, l'or en filet et sur les boutons. */
:root{
  --navy:#151f35;      /* bleu principal */
  --navy-2:#1b2b4d;    /* bleu annexe */
  --navy-deep:#0f1728; /* pied de page */
  --gold:#b8957a;      /* or */
  --gold-soft:#dcc7b5;
  --white:#ffffff;
  --mist:#f3f4f7;      /* fond clair à biais bleu */
  --ink:#151f35;
  --muted:#5b6476;
  --on-navy:#e9ebf1;
  --on-navy-muted:#aab1c2;
  --line:rgba(21,31,53,.12);
  --line-navy:rgba(255,255,255,.14);
  --font:"Raleway","Helvetica Neue",Arial,sans-serif;
  --wrap:1160px;
  --radius:4px;
  color-scheme:light;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--white);color:var(--ink);font-family:var(--font);font-size:17px;line-height:1.65;font-weight:400}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
h1,h2,h3{font-weight:300;line-height:1.15;margin:0;text-wrap:balance;letter-spacing:-.01em}
h1 strong,h2 strong{font-weight:700}
p{margin:0}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px}
.skip{position:absolute;left:-999px;top:0;background:var(--gold);color:var(--navy);padding:8px 14px;z-index:100}
.skip:focus{left:12px}

.wrap{max-width:var(--wrap);margin:0 auto;padding-left:max(20px,env(safe-area-inset-left,0px));padding-right:max(20px,env(safe-area-inset-right,0px))}
.band{padding-block:clamp(64px,9vw,120px)}
.band--navy{background:var(--navy);color:var(--on-navy)}
.band--mist{background:var(--mist)}
.eyebrow{display:inline-flex;align-items:center;gap:12px;font-size:.74rem;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--gold)}
.eyebrow::before{content:"";width:28px;height:1px;background:currentColor}
.band:not(.band--navy) .eyebrow{color:#8a6b52}
.h2{font-size:clamp(1.9rem,3.6vw,2.8rem)}
.lead{font-size:clamp(1.05rem,1.6vw,1.2rem);color:var(--muted);max-width:58ch}
.band--navy .lead{color:var(--on-navy-muted)}
.head{display:grid;gap:18px;margin-bottom:clamp(36px,5vw,60px);max-width:760px}

/* Boutons */
.btn{display:inline-flex;align-items:center;gap:10px;font-family:var(--font);font-weight:700;font-size:.95rem;letter-spacing:.02em;text-decoration:none;border-radius:var(--radius);padding:15px 26px;transition:background .2s,color .2s,transform .2s,border-color .2s;border:1px solid transparent;cursor:pointer}
.btn svg{width:20px;height:20px;flex:none}
.btn--gold{background:var(--gold);color:var(--navy)}
.btn--gold:hover{background:var(--gold-soft);transform:translateY(-1px)}
.btn--ghost{border-color:var(--line-navy);color:var(--white)}
.btn--ghost:hover{border-color:var(--gold);color:var(--gold-soft)}
.btn--line{border-color:var(--line);color:var(--ink)}
.btn--line:hover{border-color:var(--gold)}
.link{font-weight:700;text-decoration:none;border-bottom:1px solid var(--gold);padding-bottom:2px}
.link:hover{color:#8a6b52}
.band--navy .link:hover{color:var(--gold-soft)}

/* En-tête */
.site-head{position:sticky;top:env(safe-area-inset-top,0px);z-index:50;background:rgba(21,31,53,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line-navy)}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:60;background:var(--navy)}
.site-head .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:76px}
.brand img{height:30px;width:auto}
.nav{display:flex;align-items:center;gap:clamp(16px,2vw,30px)}
.nav a{color:var(--on-navy);text-decoration:none;font-size:.9rem;font-weight:500;white-space:nowrap}
.nav a:not(.btn):hover,.nav a[aria-current]{color:var(--gold)}
.nav .btn{padding:11px 18px}
.menu-btn{display:none;background:none;border:1px solid var(--line-navy);color:var(--white);border-radius:var(--radius);padding:9px 12px;font:600 .85rem var(--font);cursor:pointer}
@media (max-width:1020px){
  .menu-btn{display:block}
  .nav{position:absolute;top:76px;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;background:var(--navy);border-bottom:1px solid var(--line-navy);padding:8px max(20px,env(safe-area-inset-right,0px)) 24px max(20px,env(safe-area-inset-left,0px));display:none}
  .nav.open{display:flex}
  .nav a{padding:14px 0;border-bottom:1px solid var(--line-navy);font-size:1rem}
  .nav .btn{margin-top:18px;justify-content:center;border-bottom:0}
}

/* Accroche */
.hero{position:relative;overflow:hidden;background:var(--navy);color:var(--white)}
.hero::before{content:"";position:absolute;inset:0;background:url(../img/paysage.webp) center 60%/cover no-repeat;opacity:.32}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,var(--navy) 18%,rgba(21,31,53,.55) 60%,rgba(21,31,53,.85))}
.swan{position:absolute;pointer-events:none;background:linear-gradient(160deg,rgba(220,199,181,.55),rgba(184,149,122,.05) 75%);-webkit-mask:url(../img/cygne.png) center/contain no-repeat;mask:url(../img/cygne.png) center/contain no-repeat}
.hero .swan{z-index:1;width:min(620px,70vw);aspect-ratio:563/542;right:-60px;top:40px;opacity:.5}
.hero .wrap{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(32px,6vw,80px);align-items:center;padding-block:clamp(56px,8vw,110px)}
.hero h1{font-size:clamp(2.3rem,5.2vw,4.1rem);margin:22px 0 24px}
.hero h1 strong{color:var(--gold-soft);font-weight:600}
.hero .lead{color:var(--on-navy);max-width:46ch}
.hero-ctas{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px}
.hero-photo{position:relative;justify-self:end;width:min(400px,100%)}
.hero-photo img{position:relative;z-index:1;border-radius:var(--radius);aspect-ratio:4/5;object-fit:cover;width:100%}
.hero-photo::before{content:"";position:absolute;inset:18px -18px -18px 18px;border:1px solid var(--gold);border-radius:var(--radius)}
.hero-sign{position:absolute;z-index:2;left:-28px;bottom:28px;background:var(--white);color:var(--navy);padding:14px 18px;border-radius:var(--radius);box-shadow:0 18px 40px rgba(0,0,0,.25);font-size:.85rem;line-height:1.35}
.hero-sign b{display:block;font-size:1rem}
@media (max-width:860px){
  .hero .wrap{grid-template-columns:1fr}
  .hero-photo{justify-self:start;width:min(320px,82%);margin-left:6px}
  .hero-sign{left:auto;right:-18px}
}

/* Chiffres */
.figures{background:var(--navy-2);color:var(--white);border-top:1px solid var(--line-navy)}
.figures ul{list-style:none;margin:0;padding-block:clamp(36px,5vw,52px);display:grid;grid-template-columns:repeat(4,1fr);gap:28px}
.figures li{display:grid;gap:6px;align-content:start;padding-left:20px;border-left:1px solid rgba(184,149,122,.5);min-width:0}
.figures .n{font-size:clamp(1.9rem,3.4vw,2.6rem);font-weight:300;color:var(--gold-soft);line-height:1.1;font-variant-numeric:tabular-nums}
.figures .t{font-size:.9rem;color:var(--on-navy-muted);line-height:1.45}
.figures .src{font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--gold)}
@media (max-width:860px){.figures ul{grid-template-columns:1fr 1fr;gap:28px 20px}}

/* Constat */
.pains{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(28px,3vw,44px) clamp(20px,3vw,40px)}
.pain{display:grid;gap:14px;align-content:start;padding-top:26px;border-top:1px solid var(--line)}
.pain svg{width:34px;height:34px;color:var(--gold)}
.pain h3{font-size:1.3rem;font-weight:600}
.pain p{color:var(--muted)}
@media (max-width:960px){.pains{grid-template-columns:1fr 1fr}}@media (max-width:600px){.pains{grid-template-columns:1fr}}

/* Différence */
.versus{display:grid;grid-template-columns:1fr 1fr 1.2fr;border:1px solid var(--line);border-radius:var(--radius);background:var(--white)}
.versus > div{padding:clamp(26px,3vw,40px);display:grid;gap:10px;align-content:start;min-width:0}
.versus > div + div{border-left:1px solid var(--line)}
.versus .who{font-size:.74rem;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--muted)}
.versus .what{font-size:clamp(1.25rem,2vw,1.55rem);font-weight:300;line-height:1.3}
.versus .me{background:var(--navy);color:var(--white);border-radius:0 var(--radius) var(--radius) 0;border-left:0 !important}
.versus .me .who{color:var(--gold)}
.versus .me .what strong{color:var(--gold-soft);font-weight:600}
.versus .me p:not(.what){color:var(--on-navy-muted);font-size:.95rem}
@media (max-width:820px){.versus{grid-template-columns:1fr}.versus > div + div{border-left:0;border-top:1px solid var(--line)}.versus .me{border-radius:0 0 var(--radius) var(--radius)}}

/* Interventions */
.offers{display:grid;grid-template-columns:repeat(2,1fr);gap:clamp(16px,2vw,24px)}
.offer{display:grid;grid-template-columns:auto 1fr;gap:6px 20px;padding:clamp(24px,3vw,34px);border:1px solid var(--line);border-radius:var(--radius);background:var(--white);transition:border-color .2s}
.offer:hover{border-color:var(--gold)}
.offer svg{grid-row:span 3;width:30px;height:30px;color:var(--gold);margin-top:4px}
.offer h3{font-size:1.25rem;font-weight:600}
.offer p{color:var(--muted);font-size:.98rem}
.offer .proof{font-size:.82rem;font-weight:700;color:#8a6b52;letter-spacing:.02em}
@media (max-width:760px){.offers{grid-template-columns:1fr}}
.more{display:flex;flex-wrap:wrap;gap:20px;align-items:center;justify-content:space-between;margin-top:clamp(28px,4vw,44px)}
.bridge{margin-top:clamp(40px,6vw,72px);display:grid;grid-template-columns:1fr auto;gap:24px 40px;align-items:center;background:var(--navy);color:var(--white);border-radius:var(--radius);padding:clamp(28px,4vw,48px);position:relative;overflow:hidden}
.bridge .swan{width:260px;aspect-ratio:563/542;right:-40px;bottom:-60px;opacity:.35}
.bridge > :not(.swan){position:relative}
.bridge h3{font-size:clamp(1.4rem,2.4vw,1.9rem);margin:12px 0 10px}
.bridge p{color:var(--on-navy-muted);max-width:56ch}
@media (max-width:760px){.bridge{grid-template-columns:1fr}}

/* Méthode */
.method{position:relative;overflow:hidden}
.method::before{content:"";position:absolute;inset:0;background:url(../img/paysage.webp) center 70%/cover;opacity:.12}
.method .wrap{position:relative}
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(20px,3vw,40px);counter-reset:s}
.steps li{display:grid;gap:12px;align-content:start;padding-top:28px;border-top:1px solid var(--line-navy);position:relative}
.steps li::before{counter-increment:s;content:"0" counter(s);font-size:.8rem;font-weight:700;letter-spacing:.2em;color:var(--gold)}
.steps li::after{content:"";position:absolute;top:-4px;left:0;width:7px;height:7px;border-radius:50%;background:var(--gold)}
.steps h3{font-size:1.4rem;font-weight:600;color:var(--white)}
.steps p{color:var(--on-navy-muted)}
@media (max-width:820px){.steps{grid-template-columns:1fr}}

/* Cas clients */
.cases{display:grid;grid-template-columns:1fr 1fr;gap:clamp(20px,3vw,32px)}
.case{display:grid;grid-template-rows:auto auto 1fr auto;gap:16px;border:1px solid var(--line);border-radius:var(--radius);padding:clamp(26px,3.4vw,40px);background:var(--white)}
.case .tag{font-size:.74rem;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:#8a6b52}
.case h3{font-size:clamp(1.4rem,2.2vw,1.75rem)}
.case p{color:var(--muted)}
.kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;padding:18px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.kpi{display:grid;gap:4px;min-width:0}
.kpi .n{font-size:clamp(1.25rem,2vw,1.6rem);font-weight:600;font-variant-numeric:tabular-nums;white-space:nowrap}
.kpi .n span{color:var(--gold);font-weight:400}
.kpi .t{font-size:.8rem;color:var(--muted);line-height:1.35}
.quote{font-style:italic;font-size:1.05rem;color:var(--ink);border-left:2px solid var(--gold);padding-left:16px}
@media (max-width:860px){.cases{grid-template-columns:1fr}}
@media (max-width:420px){.kpis{grid-template-columns:1fr 1fr}}

/* À propos */
.about{display:grid;grid-template-columns:.8fr 1.2fr;gap:clamp(32px,6vw,80px);align-items:center}
.about img{border-radius:var(--radius);aspect-ratio:1;object-fit:cover;width:100%}
.about-txt{display:grid;gap:20px;min-width:0}
.path{list-style:none;margin:6px 0 0;padding:0;display:flex;flex-wrap:wrap;gap:8px 0}
.path li{font-size:.86rem;font-weight:600;color:var(--navy);display:flex;align-items:center}
.path li + li::before{content:"";width:22px;height:1px;background:var(--gold);margin:0 10px}
@media (max-width:820px){.about{grid-template-columns:1fr}.about img{max-width:360px}}

/* FAQ */
.faq{display:grid;grid-template-columns:.8fr 1.2fr;gap:clamp(32px,6vw,80px);align-items:start}
.faq-list{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;padding:22px 40px 22px 0;font-size:1.1rem;font-weight:600;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";position:absolute;right:6px;top:50%;width:11px;height:11px;border-right:1.5px solid var(--gold);border-bottom:1.5px solid var(--gold);transform:translateY(-70%) rotate(45deg);transition:transform .2s}
.faq details[open] summary::after{transform:translateY(-30%) rotate(-135deg)}
.faq details p{padding:0 0 24px;color:var(--muted);max-width:62ch}
@media (max-width:820px){.faq{grid-template-columns:1fr}}

/* Appel final */
.final{position:relative;overflow:hidden;text-align:center}
.final::before{content:"";position:absolute;inset:0;background:url(../img/paysage.webp) center 55%/cover;opacity:.35}
.final::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,var(--navy),rgba(21,31,53,.7) 50%,var(--navy))}
.final .swan{z-index:1;width:min(520px,80vw);aspect-ratio:563/542;left:50%;top:50%;transform:translate(-50%,-50%);opacity:.4}
.final .wrap{position:relative;z-index:2;display:grid;justify-items:center;gap:22px}
.final h2{font-size:clamp(2.1rem,4.6vw,3.4rem)}
.final .lead{color:var(--on-navy)}
.phone{font-size:1rem;color:var(--on-navy-muted);letter-spacing:.04em}
.phone b{color:var(--white);font-weight:600}

/* Pied de page */
.site-foot{background:var(--navy-deep);color:var(--on-navy-muted);font-size:.9rem}
.site-foot .wrap{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:36px;padding-block:56px 28px}
.site-foot img{height:28px;width:auto;margin-bottom:18px}
.site-foot h2{font-size:.74rem;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--gold);margin-bottom:14px}
.site-foot ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.site-foot a{text-decoration:none}
.site-foot a:hover{color:var(--gold-soft)}
.legal{grid-column:1/-1;border-top:1px solid var(--line-navy);padding-top:22px;display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;font-size:.8rem}
@media (max-width:760px){.site-foot .wrap{grid-template-columns:1fr}}

/* Bouton flottant mobile */
.float{display:none}
@media (max-width:760px){
  .float{display:flex;position:fixed;z-index:40;right:calc(16px + env(safe-area-inset-right,0px));bottom:calc(16px + env(safe-area-inset-bottom,0px));box-shadow:0 10px 30px rgba(0,0,0,.3)}
}

.todo{background:#fff3cd;color:#5c4400;font-size:.8rem;padding:2px 6px;border-radius:3px;font-weight:600}

/* Apparition douce */
@media (prefers-reduced-motion:no-preference){
  .hero .wrap > *{animation:rise .9s cubic-bezier(.2,.7,.2,1) both}
  .hero .wrap > *:nth-child(2){animation-delay:.15s}
  @keyframes rise{from{opacity:.001;transform:translateY(18px)}to{opacity:1;transform:none}}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

/* Trois leviers : Vente / Marketing / IA */
.domains{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(16px,2vw,24px)}
.domain{border:1px solid var(--line);border-radius:var(--radius);background:var(--white);display:grid;grid-template-rows:auto 1fr;min-width:0}
.domain header{padding:clamp(22px,2.6vw,30px);border-bottom:1px solid var(--line);display:grid;gap:8px}
.domain .dnum{font-size:.74rem;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:#8a6b52}
.domain h3{font-size:1.3rem;font-weight:600}
.domain ul{list-style:none;margin:0;padding:clamp(10px,1.4vw,14px) clamp(22px,2.6vw,30px) clamp(22px,2.6vw,30px);display:grid;align-content:start}
.domain li{display:grid;gap:4px;padding:16px 0;border-bottom:1px solid var(--line)}
.domain li:last-child{border-bottom:0}
.domain li b{font-size:1rem;font-weight:700}
.domain li span{color:var(--muted);font-size:.95rem;line-height:1.5}
.domain li em{font-style:normal;font-size:.8rem;font-weight:700;color:#8a6b52;margin-top:2px}
@media (max-width:960px){.domains{grid-template-columns:1fr}}
[id]{scroll-margin-top:96px}