/* ===================================================================
   DERTA2000 — Style Luxe / Chic — Palette design noir/or
   =================================================================== */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;500;600;700&family=Inter:wght@300;400;500;600;700&display=swap');

:root{
  --black:#0a0a0a;
  --dark:#141414;
  --gray-dark:#1f1f1f;
  --gray:#2a2a2a;
  --gray-light:#888;
  --cream:#f5f1ea;
  --white:#ffffff;
  --gold:#c9a96e;
  --gold-light:#d4b87e;
  --gold-dark:#a8884e;
  --serif:'Playfair Display',Georgia,serif;
  --sans:'Inter','Helvetica Neue',Arial,sans-serif;
  --container:1200px;
}

*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:var(--sans);
  background:var(--cream);
  color:#1a1a1a;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{list-style:none;}

.container{max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ===== HEADER / NAV ===== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:var(--black);
  padding:18px 0;
  border-bottom:1px solid rgba(255,255,255,0.06);
  transition:background .3s ease;
}
.site-header.transparent{
  background:transparent;
  border-bottom:1px solid rgba(255,255,255,0.08);
}
.site-header.scrolled{
  background:var(--black);
  border-bottom:1px solid rgba(255,255,255,0.06);
}
.nav-container{
  max-width:var(--container);margin:0 auto;
  padding:0 32px;
  display:flex;align-items:center;justify-content:space-between;
}
.logo{
  font-family:var(--serif);
  font-size:24px;font-weight:600;
  letter-spacing:4px;
  color:var(--white);
}
.logo span{color:var(--gold);font-weight:400;}
.nav-links{display:flex;gap:36px;}
.nav-links a{
  color:rgba(255,255,255,0.85);
  font-size:13px;
  letter-spacing:2px;
  text-transform:uppercase;
  font-weight:500;
  padding:6px 0;
  position:relative;
  transition:color .2s;
}
.nav-links a:hover,.nav-links a.active{color:var(--gold);}
.nav-links a.active::after{
  content:'';position:absolute;left:0;bottom:-2px;width:100%;height:1px;background:var(--gold);
}
.burger{
  display:none;background:none;border:none;color:var(--white);cursor:pointer;padding:4px;
}

/* ===== HERO ===== */
.hero{
  position:relative;
  min-height:100vh;
  display:flex;align-items:center;
  color:var(--white);
  overflow:hidden;
}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('https://images.unsplash.com/photo-1519501025264-65ba15a82390?w=1920&q=80');
  background-size:cover;
  background-position:center;
  background-repeat:no-repeat;
}
.hero-overlay{
  position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(0,0,0,0.85) 0%,rgba(10,10,10,0.65) 50%,rgba(0,0,0,0.55) 100%);
}
.hero-content{
  position:relative;z-index:2;
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
  padding-top:80px;
  max-width:780px;
}
.hero-tag{
  display:inline-block;
  color:var(--gold);
  font-size:12px;
  letter-spacing:4px;
  text-transform:uppercase;
  margin-bottom:24px;
  padding-bottom:8px;
  border-bottom:1px solid var(--gold);
}
.hero h1{
  font-family:var(--serif);
  font-size:clamp(40px,6vw,76px);
  font-weight:500;
  line-height:1.1;
  margin-bottom:24px;
  letter-spacing:-0.5px;
}
.hero p{
  font-size:18px;
  line-height:1.7;
  color:rgba(255,255,255,0.85);
  max-width:580px;
  margin-bottom:40px;
  font-weight:300;
}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;}

/* ===== BUTTONS ===== */
.btn{
  display:inline-block;
  padding:16px 36px;
  font-size:12px;
  letter-spacing:2px;
  text-transform:uppercase;
  font-weight:600;
  cursor:pointer;
  border:none;
  transition:all .25s ease;
  text-align:center;
}
.btn-gold{
  background:var(--gold);
  color:var(--black);
}
.btn-gold:hover{background:var(--gold-light);}
.btn-outline{
  background:transparent;
  color:var(--white);
  border:1px solid rgba(255,255,255,0.4);
}
.btn-outline:hover{border-color:var(--gold);color:var(--gold);}
.btn-gold-large{
  background:var(--gold);
  color:var(--black);
  padding:20px 44px;
  font-size:13px;
}
.btn-gold-large:hover{background:var(--gold-light);}

/* ===== SECTIONS ===== */
.section{padding:100px 0;}
.section-dark{background:var(--black);color:var(--white);}
.section-dark .eyebrow{color:var(--gold);}
.section-dark h2,.section-dark h3{color:var(--white);}
.section-dark p{color:rgba(255,255,255,0.75);}

.eyebrow{
  display:inline-block;
  color:var(--gold-dark);
  font-size:11px;
  letter-spacing:4px;
  text-transform:uppercase;
  margin-bottom:18px;
  font-weight:600;
}
.eyebrow.light{color:var(--gold);}

h1,h2,h3,h4{font-family:var(--serif);font-weight:500;color:#0a0a0a;line-height:1.2;}
h2{font-size:clamp(28px,3.5vw,44px);margin-bottom:24px;letter-spacing:-0.5px;}
h3{font-size:22px;margin-bottom:14px;}
h4{font-size:16px;margin-bottom:12px;letter-spacing:1px;text-transform:uppercase;}
.lead{font-size:18px;line-height:1.8;color:#444;max-width:780px;}
.center{text-align:center;margin-left:auto;margin-right:auto;}

/* ===== INTRO ===== */
.section-intro{padding:120px 0;text-align:center;}
.section-intro .eyebrow,.section-intro h2,.section-intro p{margin-left:auto;margin-right:auto;}
.section-intro p{max-width:760px;text-align:center;}

/* ===== FEATURES ===== */
.section-features{background:var(--white);padding:120px 0;}
.features-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:32px;
}
.feature-card{
  background:var(--cream);
  padding:48px 32px;
  text-align:center;
  border:1px solid rgba(201,169,110,0.15);
  transition:all .3s ease;
}
.feature-card:hover{
  border-color:var(--gold);
  background:var(--white);
  box-shadow:0 20px 50px -20px rgba(0,0,0,0.1);
}
.feature-icon{
  width:64px;height:64px;
  border:1px solid var(--gold);
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  margin:0 auto 28px;
  color:var(--gold-dark);
}
.feature-card h3{font-size:18px;margin-bottom:14px;letter-spacing:0.5px;}
.feature-card p{color:#555;font-size:14px;line-height:1.7;}

/* ===== CTA ===== */
.section-cta{
  background:var(--black);
  color:var(--white);
  padding:80px 0;
}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:48px;
}
.section-cta h2{color:var(--white);margin-bottom:8px;}
.section-cta p{color:rgba(255,255,255,0.7);max-width:560px;}

/* ===== PAGE HERO (sous-pages) ===== */
.page-hero{
  background:var(--black);
  color:var(--white);
  padding:180px 0 100px;
  text-align:center;
}
.page-hero h1{
  color:var(--white);
  font-size:clamp(36px,5vw,58px);
  margin-bottom:18px;
}
.page-hero p{color:rgba(255,255,255,0.75);font-size:17px;max-width:600px;margin:0 auto;}

/* ===== SERVICES PAGE ===== */
.services-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:32px;
}
.service-card{
  background:var(--white);
  padding:56px 48px;
  border:1px solid rgba(0,0,0,0.06);
  position:relative;
  transition:all .3s ease;
}
.service-card:hover{border-color:var(--gold);box-shadow:0 30px 60px -30px rgba(0,0,0,0.15);}
.service-num{
  font-family:var(--serif);
  font-size:14px;
  color:var(--gold-dark);
  letter-spacing:3px;
  margin-bottom:16px;
}
.service-card h2{font-size:32px;margin-bottom:8px;}
.service-sub{
  color:#888;
  font-size:14px;
  text-transform:uppercase;
  letter-spacing:1.5px;
  margin-bottom:32px;
  padding-bottom:24px;
  border-bottom:1px solid rgba(0,0,0,0.08);
}
.service-list{margin-top:24px;}
.service-list li{
  padding:12px 0 12px 28px;
  position:relative;
  color:#444;
  font-size:15px;
  border-bottom:1px solid rgba(0,0,0,0.05);
}
.service-list li:last-child{border-bottom:none;}
.service-list li::before{
  content:'';
  position:absolute;left:0;top:18px;
  width:14px;height:1px;
  background:var(--gold);
}

/* ===== METHOD ===== */
.method-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:32px;
  margin-top:60px;
}
.method-step{
  text-align:center;
  padding:32px 16px;
}
.step-num{
  width:60px;height:60px;
  border:1px solid var(--gold);
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  margin:0 auto 24px;
  font-family:var(--serif);
  font-size:22px;
  color:var(--gold);
}
.method-step h3{color:var(--white);font-size:18px;margin-bottom:10px;}
.method-step p{font-size:14px;line-height:1.7;}

/* ===== ABOUT ===== */
.about-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:80px;
}
.about-text p{color:#444;margin-bottom:16px;line-height:1.8;}
.values-list li{
  padding:16px 0;
  border-bottom:1px solid rgba(0,0,0,0.08);
  color:#444;
}
.values-list li:last-child{border-bottom:none;}
.values-list strong{color:#0a0a0a;font-weight:600;display:block;margin-bottom:4px;font-family:var(--serif);font-size:17px;}

/* ===== STATS ===== */
.stats-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  margin-top:60px;
}
.stat-card{
  text-align:center;
  padding:40px 20px;
  border:1px solid rgba(201,169,110,0.25);
}
.stat-num{
  font-family:var(--serif);
  font-size:54px;
  color:var(--gold);
  margin-bottom:8px;
  line-height:1;
}
.stat-label{
  font-size:12px;
  letter-spacing:2px;
  text-transform:uppercase;
  color:rgba(255,255,255,0.7);
}

/* ===== CONTACT ===== */
.contact-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:60px;
  align-items:start;
}
.contact-info h2{font-size:32px;margin-bottom:16px;}
.contact-info > p{color:#555;margin-bottom:40px;line-height:1.8;}
.contact-item{
  display:flex;gap:20px;
  padding:24px 0;
  border-bottom:1px solid rgba(0,0,0,0.08);
}
.contact-item:last-child{border-bottom:none;}
.contact-icon{
  width:48px;height:48px;
  border:1px solid var(--gold);
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  color:var(--gold-dark);
  flex-shrink:0;
}
.contact-item h4{font-family:var(--sans);font-size:13px;letter-spacing:2px;color:#0a0a0a;margin-bottom:6px;}
.contact-item p{color:#555;line-height:1.6;font-size:15px;}
.contact-map{
  height:520px;
  border:1px solid rgba(0,0,0,0.08);
  overflow:hidden;
}
.contact-map iframe{width:100%;height:100%;display:block;}

/* ===== FOOTER ===== */
.site-footer{
  background:#0a0a0a;
  color:#888;
  padding:80px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr;
  gap:48px;
  padding-bottom:60px;
}
.logo-footer{margin-bottom:14px;}
.footer-tag{color:#888;font-size:14px;max-width:340px;line-height:1.7;}
.site-footer h4{color:var(--white);font-family:var(--sans);font-size:13px;letter-spacing:2px;margin-bottom:20px;}
.site-footer ul li{margin-bottom:10px;}
.site-footer ul li a{color:#888;font-size:14px;transition:color .2s;}
.site-footer ul li a:hover{color:var(--gold);}
.site-footer p{font-size:14px;color:#888;line-height:1.7;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.06);
  padding:24px 0;
  text-align:center;
}
.footer-bottom p{font-size:12px;letter-spacing:1px;color:#666;}

/* ===== RESPONSIVE ===== */
@media(max-width:1024px){
  .features-grid{grid-template-columns:repeat(2,1fr);}
  .method-grid{grid-template-columns:repeat(2,1fr);}
  .stats-grid{grid-template-columns:repeat(2,1fr);}
  .about-grid{gap:48px;}
}

@media(max-width:768px){
  .burger{display:block;}
  .nav-links{
    position:fixed;
    top:0;right:-100%;
    width:80%;max-width:320px;
    height:100vh;
    background:var(--black);
    flex-direction:column;
    gap:0;
    padding:100px 32px 32px;
    transition:right .3s ease;
    border-left:1px solid rgba(255,255,255,0.06);
  }
  .nav-links.open{right:0;}
  .nav-links li{width:100%;}
  .nav-links a{
    display:block;
    padding:18px 0;
    border-bottom:1px solid rgba(255,255,255,0.06);
    font-size:14px;
  }
  .hero{min-height:90vh;}
  .hero-content{padding-top:120px;}
  .hero h1{font-size:42px;}
  .hero p{font-size:16px;}
  .section{padding:70px 0;}
  .section-intro,.section-features{padding:70px 0;}
  .features-grid,.method-grid,.stats-grid{grid-template-columns:1fr;gap:20px;}
  .services-grid,.about-grid,.contact-grid{grid-template-columns:1fr;gap:32px;}
  .service-card{padding:40px 28px;}
  .service-card h2{font-size:26px;}
  .cta-inner{flex-direction:column;text-align:center;gap:28px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;text-align:center;}
  .footer-tag{margin:0 auto;}
  .page-hero{padding:140px 0 60px;}
  .contact-map{height:380px;}
  .stat-num{font-size:42px;}
}

@media(max-width:480px){
  .container{padding:0 18px;}
  .nav-container{padding:0 18px;}
  .hero-content{padding:120px 18px 0;}
  .hero h1{font-size:36px;}
  .btn{padding:14px 28px;font-size:11px;}
  .btn-gold-large{padding:16px 32px;font-size:12px;}
}