/* ===== Diamantaires-OG · Expert Bulgari — design premium partagé ===== */
:root{--ink:#14110b;--ink2:#2a2419;--gold:#b8923d;--gold-l:#cda44e;--cream:#f7f1e6;--paper:#fbf8f2;--line:#e6dcc6;--muted:#8c8270}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:'Jost',system-ui,sans-serif;color:var(--ink2);background:#fff;line-height:1.65;font-weight:300}
h1,h2,h3,h4,.serif{font-family:'Playfair Display',Georgia,serif;color:var(--ink);font-weight:600;line-height:1.25}
.wrap{max-width:1180px;margin:0 auto;padding:0 22px}
a{color:inherit}
img{max-width:100%;display:block}
.btn{display:inline-flex;align-items:center;gap:9px;font-family:'Jost',sans-serif;font-weight:500;font-size:14.5px;letter-spacing:.04em;padding:14px 28px;border-radius:3px;text-decoration:none;cursor:pointer;border:1px solid transparent;transition:all .22s}
.btn-gold{background:var(--gold);color:#fff}.btn-gold:hover{background:var(--ink);color:#fff}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--gold)}.btn-ghost:hover{background:var(--gold);color:#fff}
.btn-light{background:#fff;color:var(--ink);border-color:#fff}.btn-light:hover{background:transparent;color:#fff;border-color:#fff}
.eyebrow{font-size:12px;letter-spacing:.28em;text-transform:uppercase;color:var(--gold);font-weight:600;margin-bottom:16px}
/* Header */
header.top{position:sticky;top:0;z-index:50;background:rgba(20,17,11,.97);backdrop-filter:blur(6px);border-bottom:1px solid rgba(184,146,61,.25)}
header.top .wrap{display:flex;align-items:center;justify-content:space-between;height:70px}
.brand{color:#fff;font-family:'Playfair Display',serif;font-size:20px;letter-spacing:.02em;text-decoration:none}
.brand b{color:var(--gold-l);font-weight:600}
header.top nav{display:flex;gap:26px}
header.top nav a{color:#e9e2d2;text-decoration:none;font-size:14px;letter-spacing:.03em;transition:color .2s}
header.top nav a:hover,header.top nav a.active{color:var(--gold-l)}
.tel-btn{display:inline-flex;align-items:center;gap:8px;color:#fff;text-decoration:none;border:1px solid var(--gold);padding:9px 18px;border-radius:3px;font-weight:500;font-size:14px}
.tel-btn:hover{background:var(--gold)}
/* Hero */
.hero{background:linear-gradient(rgba(15,12,8,.82),rgba(15,12,8,.86)),url('../img/solitaire-diamant.jpg') center/cover;color:#fff;padding:84px 0 90px}
.hero.compact{padding:60px 0 64px}
.hero .grid{display:grid;grid-template-columns:1.15fr .85fr;gap:50px;align-items:center}
.hero h1{color:#fff;font-size:46px;margin-bottom:20px}
.hero.compact h1{font-size:38px}
.hero p.lead{color:#e7ddc9;font-size:18px;font-weight:300;margin-bottom:30px;max-width:560px}
.hero .cta-row{display:flex;gap:14px;flex-wrap:wrap}
.hero-card{background:#fff;padding:14px;border-radius:5px;box-shadow:0 30px 70px rgba(0,0,0,.45)}
.hero-card img{border-radius:3px;width:100%;height:420px;object-fit:cover}
.hero-card .cap{font-size:12.5px;color:#7a6f59;text-align:center;padding:12px 6px 4px;letter-spacing:.02em}
.breadcrumb{color:#cabfa8;font-size:13px;letter-spacing:.04em;margin-bottom:14px}
.breadcrumb a{color:var(--gold-l);text-decoration:none}
/* Trust bar */
.trust{background:var(--ink);color:#e9e2d2;border-top:1px solid rgba(184,146,61,.25)}
.trust .wrap{display:flex;flex-wrap:wrap;justify-content:center;gap:14px 34px;padding:18px 22px;font-size:13.5px;letter-spacing:.03em}
.trust span{display:inline-flex;align-items:center;gap:9px}.trust .d{color:var(--gold-l)}
/* Sections */
section.pad{padding:80px 0}
.center{text-align:center}
.sec-head{max-width:720px;margin:0 auto 50px}
.sec-head h2{font-size:34px;margin-bottom:14px}
.sec-head p{color:#6f675a}
.lead-muted{color:#6b6256}
.alt{background:var(--paper)}.cream{background:var(--cream)}
/* Prose (pages contenu) */
.prose{max-width:820px;margin:0 auto}
.prose h2{font-size:28px;margin:38px 0 14px}
.prose h3{font-size:21px;margin:26px 0 10px;color:var(--ink)}
.prose p{margin-bottom:16px;color:#4f483d;font-size:16px}
.prose ul{margin:0 0 18px 0;padding-left:0;list-style:none}
.prose li{position:relative;padding:7px 0 7px 26px;color:#4f483d;border-bottom:1px solid var(--line)}
.prose li::before{content:"\25C6";position:absolute;left:0;top:9px;color:var(--gold);font-size:11px}
.prose a{color:var(--gold);text-decoration:underline;text-underline-offset:3px}
/* cards */
.cards3{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.cards2{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.card{background:var(--paper);border:1px solid var(--line);border-radius:6px;padding:32px 26px}
.card .ic{width:46px;height:46px;border-radius:50%;background:var(--ink);color:var(--gold-l);display:flex;align-items:center;justify-content:center;font-size:20px;margin-bottom:16px;font-family:'Playfair Display',serif}
.card h3{font-size:20px;margin-bottom:10px}
.card p{font-size:15px;color:#665e51}
/* collections / image cards */
.coll-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.coll-item{background:#fff;border:1px solid var(--line);border-radius:6px;overflow:hidden}
.coll-item img{height:200px;width:100%;object-fit:cover}
.coll-item .b{padding:20px 22px}
.coll-item h3{font-size:19px;margin-bottom:8px}
.coll-item p{font-size:14.5px;color:#665e51}
.coll-names{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:34px}
.tag{border:1px solid var(--gold);color:var(--ink);padding:8px 18px;border-radius:999px;font-size:13.5px;letter-spacing:.04em}
/* visite bureau */
.visit{background:var(--ink);color:#ece4d3}
.visit .grid{display:grid;grid-template-columns:1fr 1fr;gap:46px;align-items:center}
.visit h2{color:#fff;font-size:32px;margin-bottom:18px}
.visit .info{font-size:16px;line-height:2}
.visit .info b{color:var(--gold-l)}
.visit .badge{display:inline-block;background:rgba(184,146,61,.16);color:var(--gold-l);padding:5px 14px;border-radius:999px;font-size:13px;letter-spacing:.05em;margin-bottom:18px}
.visit .cta-row{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px}
.map{border:0;width:100%;height:340px;border-radius:6px;filter:grayscale(.2)}
/* form */
.formwrap{max-width:760px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:10px;padding:42px 40px;box-shadow:0 20px 50px rgba(20,17,11,.06)}
.formwrap .row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.formwrap label{display:block;font-size:13px;letter-spacing:.04em;color:#6b6256;margin:14px 0 6px;font-weight:500}
.formwrap input,.formwrap select,.formwrap textarea{width:100%;padding:13px 15px;border:1px solid var(--line);border-radius:4px;font-family:'Jost',sans-serif;font-size:15px;background:#fdfbf7;color:var(--ink)}
.formwrap input:focus,.formwrap select:focus,.formwrap textarea:focus{outline:none;border-color:var(--gold)}
.formwrap .hp{position:absolute;left:-9999px}
.formwrap button{width:100%;margin-top:24px;justify-content:center;font-size:15.5px;padding:16px}
.reassure{text-align:center;font-size:13px;color:#8c8270;margin-top:16px}
.flash{max-width:760px;margin:0 auto 26px;padding:16px 22px;border-radius:6px;text-align:center;font-size:15px}
.flash.ok{background:#edf6ed;border:1px solid #bcd9bc;color:#2e6b2e}
.flash.err{background:#fbecec;border:1px solid #e3b9b9;color:#9a3434}
/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.step{text-align:center;padding:0 14px}
.step .n{width:54px;height:54px;border-radius:50%;border:1px solid var(--gold);color:var(--gold);font-family:'Playfair Display',serif;font-size:22px;display:flex;align-items:center;justify-content:center;margin:0 auto 16px}
.step h3{font-size:18px;margin-bottom:8px}.step p{font-size:14.5px;color:#665e51}
/* reviews */
.rev-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.rev-card{background:#fff;border:1px solid var(--line);border-radius:8px;padding:26px 24px}
.stars{color:var(--gold);letter-spacing:3px;margin-bottom:12px}
.rev-card p{font-style:italic;color:#4f483d;font-size:15px;margin-bottom:16px}
.rev-card .who{font-weight:600;color:var(--ink);font-family:'Playfair Display',serif}
.rev-card .src{font-size:12.5px;color:#9a927f}
/* CTA band */
.ctaband{background:linear-gradient(rgba(15,12,8,.9),rgba(15,12,8,.92)),url('../img/diamant-poire-3ct.jpg') center/cover;color:#fff;text-align:center;padding:70px 0}
.ctaband h2{color:#fff;font-size:32px;margin-bottom:14px}
.ctaband p{color:#e7ddc9;max-width:600px;margin:0 auto 26px}
.ctaband .cta-row{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
/* footer */
footer.ft{background:#100d08;color:#cbc2af;padding:56px 0 26px}
footer.ft .grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:34px}
footer.ft h4{color:#fff;font-size:18px;margin-bottom:14px}
footer.ft a{color:#cbc2af;text-decoration:none}footer.ft a:hover{color:var(--gold-l)}
footer.ft ul{list-style:none}footer.ft li{margin-bottom:8px;font-size:14.5px}
.ft-bottom{border-top:1px solid rgba(184,146,61,.2);margin-top:40px;padding-top:20px;text-align:center;font-size:12.5px;color:#8a826f}
/* FAQ accordéon */
.faq{max-width:820px;margin:0 auto}
.faq details{border:1px solid var(--line);border-radius:8px;margin-bottom:12px;background:#fff;overflow:hidden}
.faq summary{cursor:pointer;padding:16px 20px;font-weight:500;font-size:16px;color:var(--ink);list-style:none;position:relative;padding-right:44px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);color:var(--gold);font-size:22px}
.faq details[open] summary::after{content:"\2212"}
.faq .a{padding:0 20px 18px;color:#4f483d;font-size:15px;line-height:1.7}
.faq .a a{color:var(--gold)}
/* sticky mobile bar */
.mbar{display:none}
@media(max-width:880px){
  header.top nav{display:none}
  .hero .grid,.visit .grid,.cards3,.cards2,.coll-grid,.steps,.rev-grid,footer.ft .grid,.formwrap .row{grid-template-columns:1fr}
  .hero h1{font-size:34px}.hero{padding:54px 0}
  .hero-card{display:none}
  section.pad{padding:54px 0}
  .formwrap{padding:30px 22px}
  .mbar{display:flex;position:fixed;bottom:0;left:0;right:0;z-index:60;background:var(--ink);border-top:1px solid var(--gold)}
  .mbar a{flex:1;text-align:center;color:#fff;text-decoration:none;padding:15px 6px;font-size:14.5px;font-weight:500;letter-spacing:.03em}
  .mbar a.call{background:var(--gold);color:#fff}
  body{padding-bottom:54px}
}