/* ============================================================
   OPTIM'AVENIR CONSEIL — Feuille de style commune
   Palette marine / or champagne · Cinzel · Cormorant · Raleway
   ============================================================ */
:root{
  --marine:#0d1e32;
  --marine-profond:#091422;
  --or-champagne:#c8a45a;
  --or-lumineux:#e2bc72;
  --or-pale:#f2dfa0;
  --creme-texte:#f5efe3;
  --creme-papier:#f7f2ea;
  --gris-texte:#5a5247;
  --gris-marine:rgba(245,239,227,.62);

  --serif-titre:'Cinzel', serif;
  --serif-texte:'Cormorant Garamond', serif;
  --sans:'Raleway', sans-serif;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px}
body{
  font-family:var(--serif-texte);
  color:var(--gris-texte);
  background:var(--creme-papier);
  font-size:20px;line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}

/* ---------- Helpers ---------- */
.wrap{max-width:1180px;margin:0 auto;padding:0 40px}
.eyebrow{
  font-family:var(--sans);font-weight:400;font-size:13px;
  letter-spacing:.42em;text-transform:uppercase;color:var(--or-champagne);
  margin-bottom:26px;
}
.section-rule{display:flex;align-items:center;gap:22px;margin-bottom:54px}
.section-rule .eyebrow{margin:0;white-space:nowrap}
.section-rule .line{flex:1;height:1px;background:linear-gradient(90deg,var(--or-champagne),rgba(200,164,90,0))}
h1,h2,h3{font-weight:400;color:var(--marine);line-height:1.12}
h2.title{font-family:var(--serif-texte);font-size:54px;font-weight:500;letter-spacing:.01em;margin-bottom:26px}
.lead{font-size:23px;line-height:1.6;max-width:760px}
.gold{color:var(--or-champagne)}

.btn{
  display:inline-flex;align-items:center;gap:12px;
  font-family:var(--sans);font-weight:400;font-size:13px;
  letter-spacing:.28em;text-transform:uppercase;
  padding:18px 34px;border:1px solid var(--or-champagne);
  color:var(--marine);background:transparent;cursor:pointer;transition:all .35s ease;
}
.btn:hover{background:var(--marine);border-color:var(--marine);color:var(--creme-texte)}
.btn-light{color:var(--creme-texte);border-color:var(--or-champagne)}
.btn-light:hover{background:var(--or-champagne);color:var(--marine);border-color:var(--or-champagne)}
.btn-gold{background:var(--or-champagne);border-color:var(--or-champagne);color:var(--marine)}
.btn-gold:hover{background:var(--or-lumineux);border-color:var(--or-lumineux)}

/* Duotone marine sur images placeholder */
.duotone{position:relative;overflow:hidden;background:var(--marine)}
.duotone img{
  width:100%;height:100%;object-fit:cover;
  filter:grayscale(100%) contrast(1.05) brightness(.85);
  mix-blend-mode:luminosity;opacity:.92;
}
.duotone::after{content:"";position:absolute;inset:0;
  background:linear-gradient(150deg,rgba(13,30,50,.78),rgba(9,20,34,.5));
  mix-blend-mode:multiply;pointer-events:none;}
.duotone::before{content:"";position:absolute;inset:0;z-index:2;
  background:linear-gradient(160deg,rgba(200,164,90,.10),transparent 55%);pointer-events:none;}

/* ---------- Header ---------- */
header{position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(13,30,50,0);transition:background .4s ease, box-shadow .4s ease;}
header.solid,header.scrolled{background:var(--marine);box-shadow:0 1px 0 rgba(200,164,90,.25)}
.nav{display:flex;align-items:center;justify-content:space-between;height:92px}
.brand{display:flex;align-items:center;gap:14px}
.logo-img{height:60px;width:auto;display:block}
/* Fallback monogramme si le logo image est absent */
.monogram{width:46px;height:46px;border:1px solid var(--or-champagne);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--serif-titre);font-size:15px;letter-spacing:.04em;color:var(--or-champagne);}
.brand-name{font-family:var(--serif-titre);font-size:15px;letter-spacing:.34em;color:var(--creme-texte)}
.brand-name span{display:block;font-size:9px;letter-spacing:.42em;color:var(--gris-marine);margin-top:3px;font-weight:400}
.menu{display:flex;gap:38px;align-items:center}
.menu a{font-family:var(--sans);font-weight:300;font-size:13px;letter-spacing:.2em;
  text-transform:uppercase;color:var(--gris-marine);transition:color .3s;position:relative;padding:4px 0;}
.menu a:hover,.menu a.active{color:var(--creme-texte)}
.menu a.active::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:1px;background:var(--or-champagne)}
.menu a.cta{border:1px solid var(--or-champagne);padding:12px 24px;color:var(--or-lumineux)}
.menu a.cta:hover{background:var(--or-champagne);color:var(--marine)}
.menu a.cta::after{display:none}
.burger{display:none;flex-direction:column;gap:5px;cursor:pointer;background:none;border:0;padding:8px}
.burger span{width:26px;height:1px;background:var(--creme-texte);transition:.3s}

/* ---------- Page header (bandeau intérieur) ---------- */
.page-hero{background:var(--marine);color:var(--creme-texte);position:relative;overflow:hidden;
  padding:180px 0 90px;}
.page-hero::before{content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 85% 20%,rgba(200,164,90,.12),transparent 55%);}
.page-hero .wrap{position:relative;z-index:2}
.page-hero .eyebrow{margin-bottom:22px}
.page-hero h1{font-family:var(--serif-texte);font-weight:500;font-size:clamp(40px,6vw,68px);
  color:var(--creme-texte);line-height:1.08;max-width:880px}
.page-hero .sub{font-size:22px;color:var(--gris-marine);max-width:620px;margin-top:24px;line-height:1.55}
.page-hero .rule{width:64px;height:1px;background:var(--or-champagne);margin:34px 0 0}

/* ---------- Hero accueil ---------- */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;
  background:var(--marine);color:var(--creme-texte);overflow:hidden;}
.hero .bg{position:absolute;inset:0;z-index:0}
.hero .bg img{width:100%;height:100%;object-fit:cover;filter:grayscale(100%) brightness(.42) contrast(1.05)}
.hero .bg::after{content:"";position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(9,20,34,.96) 30%,rgba(13,30,50,.7) 70%,rgba(13,30,50,.5))}
.hero .bg::before{content:"";position:absolute;inset:0;z-index:2;
  background:radial-gradient(circle at 80% 30%,rgba(200,164,90,.14),transparent 50%)}
.hero-inner{position:relative;z-index:3;padding:172px 0 150px;max-width:1080px;margin:0 auto;text-align:center}
.hero .hero-eyebrow{font-family:var(--serif-titre);font-weight:400;text-transform:uppercase;
  font-size:clamp(12px,1.25vw,15px);letter-spacing:.34em;color:var(--or-champagne);margin:0 0 40px}
.hero .hero-logo{display:block;height:clamp(110px,15vw,180px);width:auto;margin:0 auto 30px}
.hero .hero-name{font-family:var(--serif-titre);font-weight:500;text-transform:uppercase;
  font-size:clamp(28px,5.4vw,62px);letter-spacing:.07em;line-height:1.1;color:var(--creme-texte);
  margin:0;white-space:nowrap}
.hero .hero-divider{display:block;width:80px;height:1px;background:var(--or-champagne);margin:44px auto}
.hero .hero-claim{font-family:var(--serif-texte);font-style:italic;font-weight:500;
  font-size:clamp(28px,4.2vw,50px);line-height:1.2;color:var(--or-lumineux);margin:0 auto;max-width:820px}
.hero .tagline{font-family:var(--serif-titre);font-size:clamp(15px,2vw,19px);letter-spacing:.18em;
  color:var(--or-champagne);text-transform:uppercase;font-weight:400;}
.hero .desc{font-family:var(--sans);font-weight:300;font-size:clamp(16px,1.55vw,19px);letter-spacing:.05em;
  color:var(--gris-marine);max-width:640px;margin:40px auto 56px;line-height:1.8}
.hero-actions{display:flex;gap:20px;flex-wrap:wrap;align-items:center;justify-content:center}
.hero-meta{position:absolute;bottom:42px;left:0;right:0;z-index:3}
.hero-meta .wrap{display:flex;justify-content:center;align-items:center;flex-wrap:wrap;gap:14px 32px}
.hero-meta span{font-family:var(--sans);font-weight:300;font-size:12px;letter-spacing:.22em;
  text-transform:uppercase;color:var(--gris-marine)}

/* ---------- Sections ---------- */
.section{padding:120px 0}
.section.cream{background:var(--creme-papier)}
.section.paper{background:#fbf7ef}
.section.marine{background:var(--marine);color:var(--creme-texte)}
.section.marine h2.title{color:var(--creme-texte)}
.section.marine .lead{color:var(--gris-marine)}

/* Promesses */
.promesses-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid rgba(13,30,50,.12)}
.promesse{padding:48px 38px 48px 0;border-right:1px solid rgba(13,30,50,.12)}
.promesse:last-child{border-right:0;padding-right:0;padding-left:38px}
.promesse:nth-child(2){padding-left:38px;padding-right:38px}
.promesse .num{font-family:var(--serif-titre);font-size:13px;color:var(--or-champagne);letter-spacing:.2em}
.promesse h3{font-family:var(--serif-texte);font-size:30px;font-weight:500;margin:18px 0 14px}
.promesse p{font-size:19px;line-height:1.55}

/* Intro / qui suis-je */
.intro-grid{display:grid;grid-template-columns:0.85fr 1.15fr;gap:80px;align-items:center}
.intro-photo{aspect-ratio:4/5;border:1px solid rgba(200,164,90,.3);overflow:hidden}
.intro-photo img,.about-photo img{width:100%;height:100%;object-fit:cover;display:block}
.signature{font-family:var(--serif-titre);font-size:18px;letter-spacing:.06em;color:var(--or-lumineux);margin-top:34px}
.signature span{display:block;font-family:var(--sans);font-weight:300;font-size:12px;letter-spacing:.22em;
  text-transform:uppercase;color:var(--gris-marine);margin-top:6px}
.marine .body{color:var(--gris-marine);margin-top:24px;font-size:20px}

/* Aperçu services (accueil) */
.aperçu-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:0;border-top:1px solid rgba(13,30,50,.12)}
.aperçu-item{padding:40px 40px 40px 0;border-bottom:1px solid rgba(13,30,50,.12);border-right:1px solid rgba(13,30,50,.12)}
.aperçu-item:nth-child(even){padding-right:0;padding-left:40px;border-right:0}
.aperçu-item .num{font-family:var(--serif-titre);font-size:13px;color:var(--or-champagne);letter-spacing:.2em}
.aperçu-item h3{font-family:var(--serif-texte);font-size:28px;font-weight:500;margin:12px 0 10px}
.aperçu-item p{font-size:18px;line-height:1.5}

/* Services (page) */
.services-list{border-top:1px solid rgba(13,30,50,.12)}
.service-row{display:grid;grid-template-columns:80px 1fr 1.4fr;gap:40px;align-items:start;
  padding:46px 0;border-bottom:1px solid rgba(13,30,50,.12);transition:padding .35s ease;}
.service-row:hover{padding-left:14px}
.service-row .s-num{font-family:var(--serif-titre);font-size:16px;color:var(--or-champagne)}
.service-row h3{font-family:var(--serif-texte);font-size:32px;font-weight:500}
.service-row p{font-size:19px;line-height:1.55}
.service-row ul{list-style:none;margin-top:14px}
.service-row li{font-family:var(--sans);font-weight:300;font-size:14px;letter-spacing:.04em;
  color:var(--gris-texte);padding:5px 0 5px 22px;position:relative}
.service-row li::before{content:"—";position:absolute;left:0;color:var(--or-champagne)}

/* Clientèle */
.clients-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:34px}
.client-card{background:var(--marine);color:var(--creme-texte);overflow:hidden;display:flex;
  flex-direction:column;border:1px solid rgba(200,164,90,.18)}
.client-card .ph{aspect-ratio:3/2}
.client-card .c-body{padding:34px 32px 38px}
.client-card h3{font-family:var(--serif-texte);font-size:27px;font-weight:500;color:var(--creme-texte)}
.client-card .c-tag{font-family:var(--serif-titre);font-size:11px;letter-spacing:.24em;
  color:var(--or-champagne);text-transform:uppercase;margin-bottom:10px}
.client-card p{font-size:18px;line-height:1.55;color:var(--gris-marine);margin-top:12px}

.cas{margin-top:80px;display:grid;grid-template-columns:repeat(3,1fr);gap:0;
  border-top:1px solid rgba(13,30,50,.12);border-bottom:1px solid rgba(13,30,50,.12)}
.cas .c{padding:40px 32px 40px 0;border-right:1px solid rgba(13,30,50,.12)}
.cas .c:last-child{border-right:0;padding-right:0;padding-left:32px}
.cas .c:nth-child(2){padding-left:32px;padding-right:32px}
.cas .quote{font-family:var(--serif-texte);font-style:italic;font-size:23px;line-height:1.45;color:var(--marine)}
.cas .who{font-family:var(--sans);font-weight:300;font-size:12px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--or-champagne);margin-top:20px}

/* À propos */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center}
.about-photo{aspect-ratio:4/5}
.values{margin-top:40px;display:grid;grid-template-columns:1fr 1fr;gap:30px 40px}
.value h4{font-family:var(--serif-titre);font-size:13px;letter-spacing:.14em;color:var(--marine);
  text-transform:uppercase;margin-bottom:8px}
.value h4::before{content:"";display:inline-block;width:24px;height:1px;background:var(--or-champagne);
  vertical-align:middle;margin-right:12px}
.value p{font-size:18px;line-height:1.5}

/* Ressources */
.res-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:34px}
.res-card{border:1px solid rgba(13,30,50,.14);background:#fff;display:flex;flex-direction:column;
  transition:transform .35s ease, box-shadow .35s ease}
.res-card:hover{transform:translateY(-6px);box-shadow:0 18px 40px rgba(13,30,50,.12)}
.res-card .ph{aspect-ratio:16/10}
.res-card .r-body{padding:30px 30px 34px}
.res-card .r-cat{font-family:var(--serif-titre);font-size:11px;letter-spacing:.22em;
  color:var(--or-champagne);text-transform:uppercase}
.res-card h3{font-family:var(--serif-texte);font-size:24px;font-weight:500;margin:12px 0 10px;line-height:1.25}
.res-card p{font-size:17px;line-height:1.5;color:var(--gris-texte)}
.res-card .r-link{font-family:var(--sans);font-weight:400;font-size:12px;letter-spacing:.2em;
  text-transform:uppercase;color:var(--marine);margin-top:20px;display:inline-block}
.res-card .r-link::after{content:" →";color:var(--or-champagne)}

/* CTA bande */
.cta-band{background:var(--marine);color:var(--creme-texte);text-align:center;padding:100px 0;position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 50% 0%,rgba(200,164,90,.14),transparent 60%)}
.cta-band .wrap{position:relative;z-index:2}
.cta-band h2{font-family:var(--serif-texte);font-size:clamp(34px,5vw,52px);font-weight:500;color:var(--creme-texte)}
.cta-band p{color:var(--gris-marine);font-size:21px;max-width:560px;margin:18px auto 38px}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px;margin-top:20px}
.contact-info{margin-top:40px;display:flex;flex-direction:column;gap:28px}
.ci-item{border-top:1px solid rgba(200,164,90,.22);padding-top:20px}
.ci-item .l{font-family:var(--sans);font-weight:300;font-size:11px;letter-spacing:.24em;
  text-transform:uppercase;color:var(--or-champagne);margin-bottom:8px}
.ci-item .v{font-family:var(--serif-texte);font-size:25px;color:var(--creme-texte)}
.ci-item .v a:hover{color:var(--or-lumineux)}

.form{background:rgba(255,255,255,.03);border:1px solid rgba(200,164,90,.22);padding:44px 40px}
.form .fg{margin-bottom:24px}
.form label{display:block;font-family:var(--sans);font-weight:300;font-size:11px;letter-spacing:.2em;
  text-transform:uppercase;color:var(--gris-marine);margin-bottom:9px}
.form input,.form select,.form textarea{width:100%;background:transparent;border:0;
  border-bottom:1px solid rgba(245,239,227,.28);color:var(--creme-texte);
  font-family:var(--serif-texte);font-size:19px;padding:10px 0;transition:border-color .3s;}
.form input:focus,.form select,.form textarea:focus{outline:none;border-color:var(--or-champagne)}
.form select{cursor:pointer}
.form select option{background:var(--marine);color:var(--creme-texte)}
.form textarea{resize:vertical;min-height:90px}
.form .btn{margin-top:10px;width:100%;justify-content:center}
.form .form-error{font-family:var(--sans);font-weight:400;font-size:14px;letter-spacing:.02em;
  color:#e7b9b0;background:rgba(180,70,55,.14);border:1px solid rgba(200,120,110,.4);
  padding:14px 18px;margin-bottom:26px;line-height:1.5}

/* ---------- Pages de texte (mentions légales, articles) ---------- */
.prose{max-width:820px;margin:0 auto}
.prose h2{font-family:var(--serif-texte);font-size:32px;font-weight:500;color:var(--marine);
  margin:54px 0 18px}
.prose h2:first-child{margin-top:0}
.prose h3{font-family:var(--serif-titre);font-size:15px;letter-spacing:.1em;color:var(--marine);
  text-transform:uppercase;margin:36px 0 12px}
.prose p{font-size:20px;line-height:1.7;margin-bottom:16px}
.prose ul{list-style:none;margin:0 0 20px}
.prose li{font-size:20px;line-height:1.6;padding:6px 0 6px 24px;position:relative}
.prose li::before{content:"—";position:absolute;left:0;color:var(--or-champagne)}
.prose a{color:var(--marine);border-bottom:1px solid var(--or-champagne)}
.prose a:hover{color:var(--or-champagne)}
.prose .lead{margin-bottom:30px}
.dl{display:grid;grid-template-columns:230px 1fr;gap:14px 30px;margin:8px 0 30px;
  border-top:1px solid rgba(13,30,50,.12);padding-top:24px}
.dl dt{font-family:var(--sans);font-weight:400;font-size:13px;letter-spacing:.12em;
  text-transform:uppercase;color:var(--or-champagne);padding-top:4px}
.dl dd{font-size:20px;color:var(--gris-texte)}
.article-meta{font-family:var(--sans);font-weight:300;font-size:13px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--or-champagne);margin-bottom:30px}
.back-link{display:inline-block;margin-top:50px;font-family:var(--sans);font-weight:400;font-size:12px;
  letter-spacing:.2em;text-transform:uppercase;color:var(--marine)}
.back-link::before{content:"← ";color:var(--or-champagne)}
.article-figure{margin:40px 0;aspect-ratio:16/8}
@media(max-width:720px){.dl{grid-template-columns:1fr;gap:4px 0}.dl dd{margin-bottom:14px}}

/* ---------- Footer ---------- */
footer{background:var(--marine-profond);color:var(--gris-marine);padding:70px 0 40px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:50px;padding-bottom:48px;
  border-bottom:1px solid rgba(200,164,90,.16)}
.foot-brand .logo-img{height:74px;margin-bottom:22px}
.foot-brand p{font-size:18px;line-height:1.55;max-width:340px}
.foot-col h5{font-family:var(--serif-titre);font-size:12px;letter-spacing:.2em;color:var(--or-champagne);
  text-transform:uppercase;margin-bottom:22px}
.foot-col a{display:block;font-family:var(--sans);font-weight:300;font-size:14px;letter-spacing:.04em;
  color:var(--gris-marine);padding:6px 0;transition:color .3s}
.foot-col a:hover{color:var(--creme-texte)}
.foot-bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px;padding-top:30px}
.disclaimer{font-family:var(--sans);font-weight:300;font-size:12px;letter-spacing:.06em;
  color:rgba(245,239,227,.4);max-width:720px;line-height:1.6}
.foot-bottom .copy{font-family:var(--sans);font-weight:300;font-size:12px;letter-spacing:.1em;color:rgba(245,239,227,.4)}

/* ---------- Responsive ---------- */
@media(max-width:1024px){
  .intro-grid,.about-grid,.contact-grid{grid-template-columns:1fr;gap:50px}
  .clients-grid,.res-grid{grid-template-columns:1fr 1fr}
  .service-row{grid-template-columns:60px 1fr;gap:24px}
  .service-row .s-desc{grid-column:2}
}
@media(max-width:720px){
  body{font-size:18px}
  .wrap{padding:0 24px}
  h2.title{font-size:38px}
  .menu{position:fixed;top:92px;left:0;right:0;background:var(--marine);flex-direction:column;gap:0;
    padding:0;max-height:0;overflow:hidden;transition:max-height .4s ease;border-top:1px solid rgba(200,164,90,.2)}
  .menu.open{max-height:520px}
  .menu a{width:100%;padding:18px 24px;border-bottom:1px solid rgba(200,164,90,.1)}
  .menu a.active::after{display:none}
  .menu a.cta{margin:14px 24px;width:auto;text-align:center}
  .burger{display:flex}
  .promesses-grid,.clients-grid,.res-grid,.cas,.values,.aperçu-grid{grid-template-columns:1fr}
  .promesse,.cas .c{border-right:0;border-bottom:1px solid rgba(13,30,50,.12);padding:34px 0!important}
  .promesse:last-child,.cas .c:last-child{border-bottom:0}
  .aperçu-item{padding:30px 0!important;border-right:0}
  .service-row{grid-template-columns:1fr;gap:14px}
  .hero .hero-name{white-space:normal;font-size:clamp(24px,7vw,40px)}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{justify-content:center}
  .foot-grid{grid-template-columns:1fr;gap:36px}
}