/* ============================================================
   GROUPE BELBSIR — système de design partagé
   Ancre commune : encre, laiton, dossier/tampon
   Identité BAK   : oxblood (gouvernemental, relations publiques)
   Identité BMD   : sarcelle + bronze (international, Moyen-Orient)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,300;0,9..144,400;0,9..144,500;0,9..144,600;0,9..144,700;1,9..144,400&family=Inter:wght@300;400;500;600;700&family=IBM+Plex+Mono:wght@400;500&family=Cairo:wght@300;400;500;600;700&display=swap');

:root{
  --ink:#12141a;
  --ink-soft:#1c1f28;
  --paper:#f3eee2;
  --paper-soft:#fbf9f4;
  --white:#ffffff;
  --brass:#b6914f;
  --brass-light:#dcc189;
  --bak:#8a2f2f;
  --bak-deep:#4e1a1a;
  --bak-text:#cf8f82;
  --bmd:#1f4a44;
  --bmd-bronze:#a9783f;
  --bmd-text:#5fb29f;
  --line-dark:rgba(255,255,255,.14);
  --line-light:rgba(18,20,26,.12);
  --brand:var(--brass);
  --brand-text:var(--brass-light);
  --brand-deep:var(--ink);
  --font-display:'Fraunces', serif;
  --font-body:'Inter', sans-serif;
  --font-mono:'IBM Plex Mono', monospace;
  --maxw:1180px;
  --ease:cubic-bezier(.22,.8,.32,1);
}

body[data-brand="bak"]{ --brand:var(--bak); --brand-deep:var(--bak-deep); --brand-text:var(--bak-text); }
body[data-brand="bmd"]{ --brand:var(--bmd); --brand-deep:var(--bmd-bronze); --brand-text:var(--bmd-text); }

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ink);
  color:var(--paper-soft);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  position:relative;
}
body::before{
  content:"";position:fixed;inset:0;z-index:9999;pointer-events:none;
  opacity:.035;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='140' height='140'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}
body[dir="rtl"]{ font-family:'Cairo', var(--font-body); }
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;}
@media (prefers-reduced-motion: reduce){
  *{animation:none!important;transition:none!important;}
}

h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:600;
  margin:0 0 .5em;
  letter-spacing:.01em;
  color:var(--white);
}
[dir="rtl"] h1,[dir="rtl"] h2,[dir="rtl"] h3,[dir="rtl"] h4{ font-family:'Cairo', var(--font-display); font-weight:700; }
h2{font-size:clamp(1.55rem,3vw,2.3rem);}
h3{font-size:clamp(1.05rem,1.6vw,1.25rem);}
.section--paper h2,.section--paper h3,.section--paper h4{color:var(--ink);}
p{margin:0 0 1em;}
.eyebrow{
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--brand-text);
}
.section--paper .eyebrow{color:var(--brand);}
[dir="rtl"] .eyebrow{ letter-spacing:.03em; }

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px;}
.section{padding:96px 0;}
.section--tight{padding:64px 0;}
.section--paper{background:var(--paper);color:var(--ink);}
.section--paper h1,.section--paper h2,.section--paper h3,.section--paper h4{color:var(--ink);}
.section--ink{background:var(--ink-soft);}
.hr{border:none;border-top:1px solid var(--line-dark);margin:0;}
.section--paper .hr{border-top:1px solid var(--line-light);}

/* ---------- Top bar (timbre/dossier reference line) ---------- */
.topbar{
  background:var(--brand-deep);
  border-bottom:1px solid var(--line-dark);
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.05em;
  color:var(--brass-light);
}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;padding:8px 28px;flex-wrap:wrap;gap:8px;}
.topbar a{opacity:.85;}
.topbar a:hover{opacity:1;color:var(--brand);}
.lang-switch{display:flex;gap:10px;}
.lang-switch a.is-active{color:var(--brand);font-weight:600;}

/* ---------- Nav (dossier tabs) ---------- */
.nav{
  position:sticky;top:0;z-index:50;
  background:rgba(18,20,26,.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line-dark);
  transition:box-shadow .25s var(--ease);
}
.nav.is-scrolled{box-shadow:0 12px 28px -18px rgba(0,0,0,.55);}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;padding:18px 28px;gap:24px;}
.brandmark{display:flex;align-items:center;gap:12px;}
.brandmark img{height:42px;width:auto;}
.brandmark .name{font-family:var(--font-display);font-size:1.05rem;color:var(--white);letter-spacing:.01em;}
.brandmark .name small{display:block;font-family:var(--font-mono);font-size:.62rem;letter-spacing:.12em;color:var(--brand-text);text-transform:uppercase;}

.tabs{display:flex;gap:4px;flex-wrap:wrap;}
.tabs a{
  position:relative;
  font-family:var(--font-mono);
  font-size:.74rem;
  letter-spacing:.06em;
  text-transform:uppercase;
  padding:10px 14px;
  border-top:2px solid transparent;
  color:rgba(243,238,226,.72);
  transition:color .15s,border-color .2s var(--ease),background .15s;
  border-radius:2px 2px 0 0;
}
[dir="rtl"] .tabs a{ letter-spacing:.01em; text-transform:none; font-family:'Cairo',var(--font-mono); font-size:.82rem;}
.tabs a:hover{color:var(--white);background:rgba(255,255,255,.05);}
.tabs a.is-active{color:var(--white);border-top-color:var(--brand);background:rgba(255,255,255,.06);}
.navtoggle{display:none;background:none;border:1px solid var(--line-dark);color:var(--white);font-family:var(--font-mono);font-size:.7rem;letter-spacing:.08em;padding:8px 12px;cursor:pointer;text-transform:uppercase;transition:border-color .15s,background .15s;}
.navtoggle:hover{border-color:var(--brand);background:rgba(255,255,255,.04);}

@media (max-width:880px){
  .tabs{
    display:none;position:absolute;top:100%;left:0;right:0;
    background:var(--ink-soft);flex-direction:column;border-bottom:1px solid var(--line-dark);
    padding:6px 0;
    animation:navDrop .22s var(--ease);
  }
  @keyframes navDrop{ from{opacity:0;transform:translateY(-6px);} to{opacity:1;transform:translateY(0);} }
  .tabs.is-open{display:flex;}
  .tabs a{border-top:none;border-right:2px solid transparent;padding:14px 28px;}
  [dir="rtl"] .tabs a{border-right:none;border-left:2px solid transparent;}
  .tabs a.is-active{border-right-color:var(--brand);background:rgba(255,255,255,.04);}
  [dir="rtl"] .tabs a.is-active{border-left-color:var(--brand);}
  .navtoggle{display:inline-block;}
}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:78vh;display:flex;align-items:flex-end;overflow:hidden;}
.hero__bg{position:absolute;inset:0;z-index:0;}
.hero__bg img{width:100%;height:100%;object-fit:cover;filter:saturate(.85) brightness(.55);}
.hero__bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg, rgba(18,20,26,.25) 0%, rgba(18,20,26,.55) 55%, rgba(18,20,26,.97) 100%);
}
.hero__content{position:relative;z-index:1;padding:64px 0 56px;width:100%;}
.hero__seal{
  display:inline-flex;align-items:center;gap:10px;
  border:1px solid var(--brand);color:var(--brand-text);
  font-family:var(--font-mono);font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;
  padding:6px 14px;border-radius:999px;margin-bottom:22px;
  backdrop-filter:blur(2px);
}
.hero h1{font-size:clamp(2.1rem,5vw,3.6rem);max-width:18ch;line-height:1.08;}
.hero__lede{max-width:46ch;font-size:1.08rem;color:rgba(243,238,226,.86);}
.hero__cta{display:flex;gap:14px;margin-top:28px;flex-wrap:wrap;}

.btn{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;
  padding:13px 24px;border:1px solid var(--brand);color:var(--white);
  transition:background .15s,color .15s;white-space:nowrap;
}
.btn:hover{background:var(--brand);color:var(--ink);}
.btn--solid{background:var(--brand);color:var(--ink);border-color:var(--brand);}
.btn--solid:hover{background:transparent;color:var(--white);}
.section--paper .btn{color:var(--ink);}
.section--paper .btn:hover{background:var(--brand);color:var(--ink);}
.section--paper .btn--solid{color:var(--ink);}
.section--paper .btn--solid:hover{color:var(--ink);background:transparent;border-color:var(--brand);}
[dir="rtl"] .btn,[dir="rtl"] .eyebrow{letter-spacing:.02em;}

/* ---------- Grid / cards ---------- */
.grid{display:grid;gap:28px;}
.grid--2{grid-template-columns:repeat(2,1fr);}
.grid--3{grid-template-columns:repeat(3,1fr);}
.grid--4{grid-template-columns:repeat(4,1fr);}
@media (max-width:920px){.grid--3,.grid--4{grid-template-columns:repeat(2,1fr);} }
@media (max-width:620px){.grid--2,.grid--3,.grid--4{grid-template-columns:1fr;} }

.card{
  background:rgba(255,255,255,.03);
  border:1px solid var(--line-dark);
  padding:30px 26px;
  position:relative;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.card:hover{transform:translateY(-5px);box-shadow:0 22px 40px -22px rgba(0,0,0,.45);border-color:var(--brand);}
.section--paper .card{background:var(--white);border-color:var(--line-light);}
.section--paper .card:hover{box-shadow:0 22px 40px -22px rgba(18,20,26,.25);}
.card__tab{
  position:absolute;top:-1px;left:24px;
  background:var(--brand);color:var(--paper-soft);
  font-family:var(--font-mono);font-size:.66rem;letter-spacing:.1em;text-transform:uppercase;
  padding:4px 10px 5px;
  clip-path:polygon(0 0,100% 0,100% 100%,9px 100%,0 calc(100% - 9px));
}
[dir="rtl"] .card__tab{left:auto;right:24px;clip-path:polygon(0 0,100% 0,100% calc(100% - 9px),calc(100% - 9px) 100%,0 100%);}
.card h3{font-size:1.18rem;margin-top:10px;}
.card ul{margin:0;padding:0 0 0 18px;}
[dir="rtl"] .card ul{padding:0 18px 0 0;}
.card li{margin-bottom:.5em;}
.icon-badge{
  display:inline-flex;align-items:center;justify-content:center;
  width:52px;height:52px;border-radius:50%;
  border:1px solid var(--brand);color:var(--brand);
  margin-bottom:16px;transition:background .25s var(--ease),color .25s var(--ease);
}
.section--paper .icon-badge{color:var(--brand);}
.icon-badge svg{width:24px;height:24px;}
.card:hover .icon-badge{background:var(--brand);color:var(--paper-soft);}

/* ---------- About / split ---------- */
.split{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:start;}
@media (max-width:880px){.split{grid-template-columns:1fr;gap:36px;}}
.split img{border:1px solid var(--line-light);}

.figure-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;}
@media (max-width:760px){.figure-grid{grid-template-columns:repeat(3,1fr);}}
.figure-grid > div{overflow:hidden;cursor:pointer;background:var(--ink-soft);}
.figure-grid img{aspect-ratio:1/1;object-fit:cover;width:100%;height:100%;transition:transform .5s var(--ease);}
.figure-grid > div:hover img{transform:scale(1.08);}

/* ---------- Press / media list ---------- */
.press{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
@media (max-width:880px){.press{grid-template-columns:repeat(2,1fr);}}
@media (max-width:600px){.press{grid-template-columns:1fr;}}
.press__item{border:1px solid var(--line-dark);transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);}
.press__item:hover{transform:translateY(-4px);box-shadow:0 20px 38px -22px rgba(0,0,0,.5);border-color:var(--brand);}
.press__item a{display:block;overflow:hidden;}
.press__item img{aspect-ratio:16/9;object-fit:cover;transition:transform .5s var(--ease);}
.press__item:hover img{transform:scale(1.06);}
.press__item figcaption{padding:16px 18px;font-size:.92rem;}
.press__item .eyebrow{display:block;margin-bottom:6px;}

/* ---------- Contact ---------- */
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;}
@media (max-width:880px){.contact-grid{grid-template-columns:1fr;}}
.info-row{display:flex;gap:16px;padding:16px 0;border-bottom:1px solid var(--line-light);}
.info-row .eyebrow{min-width:120px;}
form.contact-form{display:grid;gap:16px;}
.contact-form label{display:block;font-family:var(--font-mono);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--ink);margin-bottom:6px;}
.contact-form input,.contact-form textarea,.contact-form select{
  width:100%;border:1px solid var(--line-light);background:var(--white);
  padding:12px 14px;font-family:var(--font-body);font-size:.95rem;color:var(--ink);
}
[dir="rtl"] .contact-form input,[dir="rtl"] .contact-form textarea{font-family:'Cairo',var(--font-body);}
.contact-form textarea{min-height:130px;resize:vertical;}
.contact-form .btn{justify-self:start;border-color:var(--ink);color:var(--ink);}
.contact-form .btn:hover{background:var(--ink);color:var(--white);}
.form-note{font-size:.82rem;color:rgba(18,20,26,.6);}

/* ---------- Footer ---------- */
.footer{background:var(--ink);border-top:1px solid var(--line-dark);padding:48px 0 28px;}
.footer .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:24px;}
.footer__col h4{font-size:.95rem;color:var(--white);}
.footer__col{font-size:.88rem;color:rgba(243,238,226,.7);}
.footer__social{display:flex;gap:12px;margin-top:14px;}
.footer__social a{
  width:36px;height:36px;border-radius:50%;border:1px solid var(--line-dark);
  display:flex;align-items:center;justify-content:center;
  color:rgba(243,238,226,.75);
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.footer__social a:hover{background:var(--brand);border-color:var(--brand);color:var(--ink);transform:translateY(-3px);}
.section--paper .footer__social a{color:var(--ink);border-color:var(--line-light);}
.section--paper .footer__social a:hover{color:var(--white);}
.icon{display:flex;}
.icon svg{width:16px;height:16px;}
.footer__rights{font-family:var(--font-mono);font-size:.72rem;color:rgba(243,238,226,.45);margin-top:30px;}
.gateway-link{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--brand-text);transition:color .15s;}
.gateway-link:hover{color:var(--brand);}

/* ---------- Misc text content from source sites ---------- */
.prose p{color:inherit;}
.prose a{color:var(--brand);text-decoration:underline;text-decoration-color:var(--line-dark);}
.section--paper .prose a{color:var(--bak);}
body[data-brand="bmd"] .section--paper .prose a{color:var(--bmd);}
.prose{max-width:68ch;}
.small{font-size:.88rem;}
.empty-note{
  border:1px dashed var(--line-light);padding:22px 24px;font-size:.92rem;color:rgba(18,20,26,.65);
}
.section--ink .empty-note,.hero ~ .section .empty-note{border-color:var(--line-dark);color:rgba(243,238,226,.6);}

/* ---------- Scroll reveal (ajouté par JS, dégradation silencieuse sans JS) ---------- */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .7s var(--ease),transform .7s var(--ease);}
.reveal.is-visible{opacity:1;transform:translateY(0);}
@media (prefers-reduced-motion: reduce){.reveal{opacity:1;transform:none;}}

/* ---------- Lightbox (galeries photo) ---------- */
.lightbox{
  position:fixed;inset:0;z-index:1000;background:rgba(10,11,14,.92);
  display:flex;align-items:center;justify-content:center;padding:40px;
  opacity:0;pointer-events:none;transition:opacity .25s var(--ease);
}
.lightbox.is-open{opacity:1;pointer-events:auto;}
.lightbox img{max-width:min(900px,92vw);max-height:86vh;object-fit:contain;box-shadow:0 30px 60px -20px rgba(0,0,0,.6);}
.lightbox__close{
  position:absolute;top:24px;right:28px;width:42px;height:42px;border-radius:50%;
  border:1px solid rgba(243,238,226,.3);color:var(--paper-soft);background:transparent;
  font-family:var(--font-mono);font-size:1.1rem;cursor:pointer;transition:border-color .15s,color .15s;
}
.lightbox__close:hover{border-color:var(--brand);color:var(--brand);}