:root{
  --navy: #0F1E3B;
  --navy-deep: #081326;
  --gold: #C9A24B;
  --gold-soft: #E4CE8E;
  --cream: #F6F3EC;
  --ink: #1B1B1B;
  --line: rgba(15,30,59,0.12);
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  background: var(--cream);
  color: var(--ink);
  font-family: 'Work Sans', sans-serif;
  font-size: 16px;
  line-height: 1.6;
}
h1,h2,h3, .display{
  font-family: 'Fraunces', serif;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--navy-deep);
}
a{ color: inherit; text-decoration:none; }
img{ max-width:100%; display:block; }
.wrap{ max-width: 1120px; margin: 0 auto; padding: 0 32px; }

/* NAV */
header{
  position: sticky; top:0; z-index: 50;
  background: rgba(246,243,236,0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}
nav{
  display:flex; align-items:center; justify-content:space-between;
  padding: 18px 32px; max-width: 1120px; margin:0 auto;
}
.logo{
  font-family:'Fraunces', serif; font-weight:700; font-size: 1.3rem;
  color: var(--navy-deep); display:flex; align-items:center; gap:8px;
}
.logo .dot{ width:8px; height:8px; background: var(--gold); border-radius:1px; display:inline-block; transform: rotate(45deg); }
.nav-links{ display:flex; gap: 32px; font-size: 0.92rem; font-weight:500; }
.nav-links a{ opacity:0.75; transition: opacity .2s; }
.nav-links a:hover, .nav-links a.active{ opacity:1; }
.nav-links a.active{ color: var(--gold); font-weight:600; }
.nav-cta{
  background: var(--navy-deep); color: var(--cream);
  padding: 10px 20px; border-radius: 3px; font-size:0.88rem; font-weight:600;
  transition: background .2s;
}
.nav-cta:hover{ background: var(--navy); }
.nav-toggle{ display:none; }
@media (max-width: 760px){
  .nav-links{ display:none; }
  .nav-toggle{ display:block; }
}

/* PAGE HEADER (pages internes) */
.page-header{ padding: 64px 32px 40px; }
.page-header .eyebrow{ margin-bottom: 14px; }
.page-header h1{ font-size: clamp(2rem, 3.6vw, 2.8rem); max-width: 22ch; }
.page-header p{ color: rgba(27,27,27,0.7); max-width: 56ch; margin-top:16px; font-size:1.02rem; }

/* HERO (accueil) */
.hero{ padding: 96px 32px 80px; position: relative; overflow: hidden; }
.hero-grid{
  max-width: 1120px; margin:0 auto;
  display:grid; grid-template-columns: 1.15fr 0.85fr; gap: 56px; align-items:center;
}
.eyebrow{
  font-size: 0.82rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--gold); font-weight:600; margin-bottom: 18px; display:block;
}
.hero h1{ font-size: clamp(2.3rem, 4.2vw, 3.4rem); line-height: 1.08; margin-bottom: 22px; }
.hero p.lead{ font-size: 1.08rem; color: rgba(27,27,27,0.75); max-width: 46ch; margin-bottom: 32px; }
.btn-row{ display:flex; gap:16px; flex-wrap:wrap; }
.btn-primary, .btn-ghost{
  padding: 13px 26px; border-radius: 3px; font-weight:600; font-size:0.95rem;
  display:inline-block; transition: all .2s; cursor:pointer; border:none; font-family:'Work Sans',sans-serif;
}
.btn-primary{ background: var(--navy-deep); color:var(--cream); }
.btn-primary:hover{ background: var(--gold); color: var(--navy-deep); }
.btn-ghost{ border: 1px solid var(--line); color: var(--navy-deep); background:transparent; }
.btn-ghost:hover{ border-color: var(--navy-deep); }

.module-art{ position: relative; height: 340px; }
.tile{ position:absolute; border-radius: 6px; box-shadow: 0 12px 30px -12px rgba(8,19,38,0.25); }
.t1{ width:150px; height:150px; background: var(--navy-deep); top:10px; left:40px; }
.t2{ width:120px; height:120px; background: var(--gold); top:70px; left:190px; opacity:0.92; }
.t3{ width:110px; height:170px; background: var(--navy); top:150px; left:10px; }
.t4{ width:130px; height:100px; border: 2px solid var(--gold-soft); top:190px; left:160px; background: var(--cream); }
.tile-label{ position:absolute; font-size:0.72rem; font-weight:600; color: var(--cream); padding: 8px 10px; letter-spacing:0.02em; }
.t2 .tile-label, .t4 .tile-label{ color: var(--navy-deep); }

.proof{ display:flex; gap: 40px; margin-top: 56px; flex-wrap:wrap; border-top: 1px solid var(--line); padding-top: 28px; }
.proof div b{ font-family:'Fraunces',serif; font-size:1.6rem; color:var(--navy-deep); display:block; }
.proof div span{ font-size:0.85rem; color: rgba(27,27,27,0.6); }

/* SECTION SHELL */
section{ padding: 88px 32px; }
.section-head{ max-width: 640px; margin-bottom: 52px; }
.section-head .eyebrow{ margin-bottom: 14px; }
.section-head h2{ font-size: clamp(1.7rem, 3vw, 2.3rem); margin-bottom: 14px; }
.section-head p{ color: rgba(27,27,27,0.68); font-size: 1.02rem; }

/* SERVICES */
.services-dark{ background: var(--navy-deep); color: var(--cream); }
.services-dark .section-head h2, .services-dark .eyebrow{ color: var(--cream); }
.services-dark .eyebrow{ color: var(--gold-soft); }
.services-dark .section-head p{ color: rgba(246,243,236,0.72); }
.service-grid{
  display:grid; grid-template-columns: repeat(auto-fit, minmax(230px,1fr)); gap: 1px;
  background: rgba(246,243,236,0.14); border: 1px solid rgba(246,243,236,0.14);
}
.service-card{
  background: var(--navy-deep); padding: 32px 26px; min-height: 200px;
  display:flex; flex-direction:column; justify-content:space-between; transition: background .25s;
}
.service-card:hover{ background: #14274a; }
.service-card h3{ color: var(--cream); font-size: 1.12rem; margin-bottom: 10px; }
.service-card p{ color: rgba(246,243,236,0.68); font-size: 0.92rem; }
.service-mark{ color: var(--gold); font-size: 1.4rem; margin-bottom: 18px; }

.service-detail{
  display:grid; grid-template-columns: 220px 1fr; gap: 32px; padding: 32px 0;
  border-bottom: 1px solid var(--line);
}
.service-detail:last-child{ border-bottom:none; }
.service-detail .num{ font-family:'Fraunces',serif; font-size:2.2rem; color: var(--gold); }
.service-detail h3{ font-size:1.25rem; margin-bottom:10px; }
.service-detail p{ color: rgba(27,27,27,0.68); }
@media (max-width: 700px){ .service-detail{ grid-template-columns: 1fr; } }

/* PRICING */
.pricing-tint{ background: #EFEAE0; }
.pricing-grid{ display:grid; grid-template-columns: repeat(3,1fr); gap: 24px; align-items:stretch; }
@media (max-width: 820px){ .pricing-grid{ grid-template-columns:1fr; } }
.price-card{
  background: var(--cream); border: 1px solid var(--line); border-radius: 8px;
  padding: 32px 28px; display:flex; flex-direction:column; position:relative;
}
.price-card.featured{ border-color: var(--gold); box-shadow: 0 16px 34px -18px rgba(15,30,59,0.35); }
.price-badge{
  position:absolute; top:-13px; right:24px; background: var(--gold); color: var(--navy-deep);
  font-size:0.72rem; font-weight:700; padding: 5px 12px; border-radius: 20px; letter-spacing:0.03em;
}
.price-card h3{ font-size: 1.2rem; margin-bottom: 6px; }
.price-amount{ font-family:'Fraunces',serif; font-size: 2rem; color: var(--navy-deep); margin: 12px 0 20px; }
.price-amount span{ font-size:0.95rem; font-family:'Work Sans',sans-serif; color: rgba(27,27,27,0.55); font-weight:500; }
.price-features{ list-style:none; margin-bottom: 26px; flex-grow:1; }
.price-features li{
  font-size: 0.92rem; color: rgba(27,27,27,0.72); padding: 8px 0 8px 24px; position:relative;
  border-top: 1px solid var(--line);
}
.price-features li:first-child{ border-top:none; }
.price-features li::before{ content:"✓"; position:absolute; left:0; color: var(--gold); font-weight:700; }
.price-card .btn-primary, .price-card .btn-ghost{ text-align:center; }

/* APPROCHE */
.approach-grid{ display:grid; grid-template-columns: repeat(3,1fr); gap: 36px; }
@media (max-width: 820px){ .approach-grid{ grid-template-columns:1fr; } }
.approach-card{ border-top: 2px solid var(--gold); padding-top: 20px; }
.approach-card h3{ font-size: 1.08rem; margin-bottom: 10px; }
.approach-card p{ color: rgba(27,27,27,0.68); font-size: 0.95rem; }

/* REALISATIONS */
.realisations-tint{ background: #EFEAE0; }
.real-grid{ display:grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
@media (max-width: 820px){ .real-grid{ grid-template-columns:1fr; } }
.real-card{ background: var(--cream); border: 1px solid var(--line); border-radius: 6px; overflow:hidden; }
.real-thumb{
  height: 150px; display:flex; align-items:center; justify-content:center;
  font-family:'Fraunces',serif; font-size:0.9rem; letter-spacing:0.04em; text-align:center; padding: 0 16px;
}
.real-body{ padding: 20px 22px; }
.real-body h3{ font-size: 1rem; margin-bottom: 6px; }
.real-body p{ font-size: 0.88rem; color: rgba(27,27,27,0.62); }

/* ABOUT */
.about-grid{ display:grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items:center; }
@media (max-width: 820px){ .about-grid{ grid-template-columns:1fr; } }
.group-badge{ border: 1px solid var(--line); border-radius: 6px; padding: 28px; background: var(--cream); }
.group-badge .eyebrow{ margin-bottom:10px; }
.group-badge ul{ margin-top:16px; padding-left: 18px; font-size:0.92rem; color: rgba(27,27,27,0.72); }
.group-badge li{ margin-bottom:8px; }

/* CONTACT */
.contact-dark{ background: var(--navy-deep); color: var(--cream); }
.contact-dark .section-head h2, .contact-dark .eyebrow{ color: var(--cream); }
.contact-dark .eyebrow{ color: var(--gold-soft); }
.contact-dark .section-head p{ color: rgba(246,243,236,0.72); }
.contact-grid{ display:grid; grid-template-columns: 1fr 1fr; gap: 60px; }
@media (max-width: 820px){ .contact-grid{ grid-template-columns:1fr; } }
.field{ margin-bottom: 18px; }
.field label{ display:block; font-size:0.82rem; margin-bottom:6px; color: rgba(246,243,236,0.7); }
.field input, .field textarea, .field select{
  width:100%; background: rgba(246,243,236,0.06); border: 1px solid rgba(246,243,236,0.22);
  border-radius: 3px; padding: 11px 13px; color: var(--cream); font-family:'Work Sans',sans-serif; font-size:0.94rem;
}
.field input::placeholder, .field textarea::placeholder{ color: rgba(246,243,236,0.4); }
.contact-info div{ margin-bottom: 22px; }
.contact-info span.label{ font-size:0.8rem; color: rgba(246,243,236,0.55); display:block; margin-bottom:4px;}
.contact-info a, .contact-info p{ font-size:1.02rem; color: var(--cream); }

.alert{ padding: 14px 18px; border-radius: 4px; margin-bottom: 22px; font-size: 0.92rem; }
.alert-success{ background: rgba(76,175,80,0.15); border: 1px solid rgba(76,175,80,0.4); color:#bfe8c2; }
.alert-error{ background: rgba(220,80,80,0.15); border: 1px solid rgba(220,80,80,0.4); color:#f0bcbc; }

footer{
  background: var(--navy-deep); border-top: 1px solid rgba(246,243,236,0.12);
  padding: 26px 32px; color: rgba(246,243,236,0.55); font-size:0.82rem;
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px;
}