/* v4 styles: accessible, performant, consistent */
:root{
  --bg:#0a0b13;--bg-2:#0d0f1a;--text:#ffffff;--muted:#b9b9b9;--accent:#5787d6;--accent-20:rgba(87,135,214,.2);
  --radius:12px;--shadow:0 6px 24px rgba(0,0,0,.35);
  /* RGB triplet used to tint the navbar halo: default brand blue #0D2E3F */
  --nav-glow: 13 46 63;
  /* Brand palette */
  --brand-blue:#0D2E3F;
  --brand-yellow:#FFC000;
  /* CTA emphasis blue (brighter) */
  --cta-blue:#0066CC; /* visible blue aligned with palette */
  --cta-blue-rgb:0 102 204;
}
/* Local brand font: Fauna Thin */
@font-face{
  font-family:'FaunaThin';
  src:url('ressources/fauna-thin.ttf') format('truetype');
  font-weight:300;
  font-style:normal;
  font-display:swap;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:72px}
body{font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--text);background:var(--bg);min-height:100dvh}
img{max-width:100%;display:block}
.container{max-width:1200px;margin-inline:auto;padding-inline:20px}
.section-block{position:relative;padding-block:clamp(56px, 8vw, 112px);isolation:isolate}
/* Alternance visuelle entre sections */
main > .section-block{background-color:var(--bg)}
main > .section-block:nth-of-type(even){
  background-color:var(--bg-2);
  /* motif léger pour différencier visuellement */
  background-image:
    radial-gradient(rgba(255,255,255,.06) 1px, transparent 1px);
  background-size:22px 22px;
  background-position:center;
}
/* Séparateurs discrets entre sections */
.section-block::after{content:"";position:absolute;left:4%;right:4%;bottom:0;height:1px;background:linear-gradient(90deg, rgba(87,135,214,0) 0%, var(--accent-20) 50%, rgba(87,135,214,0) 100%)}
.section-block:last-of-type::after{display:none}
.eyebrow{font:600 12px/1 Inter,system-ui,sans-serif;letter-spacing:2px;text-transform:uppercase;color:var(--muted);opacity:.9;margin-bottom:12px}
.lead{font-size:18px;color:var(--muted);margin:12px 0 20px}

h1{font-weight:700;letter-spacing:.5px;font-size:clamp(32px,6vw,56px);margin:.25rem 0 1rem}
h2{font-weight:700;letter-spacing:.5px;font-size:clamp(24px,4.5vw,36px);margin:.25rem 0 1rem}
h3{font-weight:700;font-size:18px;letter-spacing:1px}
.main-content{
    padding: 0 !important;
}
.site-main{
    padding: 0 !important;
}
/* Skip link */
.skip-link{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden}
.skip-link:focus{left:16px;top:16px;width:auto;height:auto;background:var(--accent);color:#fff;padding:8px 12px;border-radius:8px;z-index:1000}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* Header */
.site-header{position:sticky;top:0;z-index:10;backdrop-filter:blur(8px);background:rgba(13,15,26,.5);border-bottom:1px solid rgba(255,255,255,.06);box-shadow:0 12px 30px -12px rgb(var(--nav-glow) / .35)}
.site-header::after{content:"";position:absolute;left:0;right:0;bottom:-18px;height:36px;pointer-events:none;background:radial-gradient(120% 120% at 50% 0%, rgb(var(--nav-glow) / .60) 0%, transparent 60%);filter:blur(10px);opacity:.8}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{font-family:'FaunaThin', Georgia, serif;font-weight:300;letter-spacing:4px;text-decoration:none;color:var(--text);font-size:20px}
.nav-links{display:flex;gap:28px;align-items:center; position:sticky !important}
.nav-links a{color:var(--text);text-decoration:none;font-weight:500}
.nav-links a:hover{color:var(--accent)}
.nav-links a[aria-current="true"]{color:var(--accent);text-shadow:0 0 10px rgb(var(--nav-glow) / .6)}
.nav-toggle{display:none;background:none;border:0;color:var(--text)}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--text);margin:4px 0}

/* Hero */
.hero{min-height:100dvh;display:grid;place-items:center;overflow:hidden}
.hero-bg{position:absolute;inset:0;z-index:-1}
.hero-video{width:100%;height:100%;object-fit:cover;object-position:center bottom;filter:saturate(105%)}
.hero-overlay{position:absolute;inset:0}
.hero .hero-content{position:relative;text-align:center;padding-block:96px;max-width:960px;margin-inline:auto}
.cta{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-top:20px}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 22px;border-radius:999px;border:2px solid transparent;text-decoration:none;font-weight:600;letter-spacing:.4px;transition:all .2s ease;position:relative;overflow:hidden}
.btn.small{padding:10px 16px}
.btn-primary{background:var(--cta-blue);color:#fff;border-color:transparent;box-shadow:0 6px 20px rgba(0,0,0,.25);transition:filter .2s ease, box-shadow .2s ease}
.btn-primary:hover{filter:brightness(1.08);box-shadow:0 10px 28px rgb(var(--cta-blue-rgb) / .35)}
.btn-outline{background:transparent;border-color:var(--accent);color:var(--text)}
.btn-outline:hover{background:rgb(var(--cta-blue-rgb) / .12);border-color:var(--cta-blue)}
/* Icons */
.icon{display:inline-block;vertical-align:middle}

/* Grid */
.grid{display:grid;gap:28px}
.grid.two{grid-template-columns:repeat(2,1fr)}
.center{text-align:center}

/* Cards */
.card{background:rgba(13,15,26,.6);border:1px solid rgba(255,255,255,.06);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}

/* About */
.bullets{margin:8px 0 20px;padding-left:18px;color:var(--muted)}
.bullets li{margin:6px 0}
.stats{display:flex;gap:24px;flex-wrap:wrap;margin-top:18px}
.stat{background:rgba(13,15,26,.6);border:1px solid rgba(255,255,255,.06);border-radius:10px;padding:14px 16px;min-width:120px;text-align:center}
.stat strong{font-size:32px}
.stat span{display:block;color:var(--muted);font-size:12px;letter-spacing:1px;text-transform:uppercase}

/* Divisions */
.divisions-grid{display:grid;grid-template-columns:repeat(auto-fit, minmax(260px, 1fr));gap:16px}
.division-card{position:relative;height:380px;border-radius:12px;overflow:hidden}
.division-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;filter:brightness(.85)}
.division-overlay{position:absolute;inset:0;background:linear-gradient(to bottom, transparent 0%, rgba(0,0,0,.3) 50%, rgba(0,0,0,.85) 100%)}
.division-content{position:absolute;left:0;right:0;bottom:0;padding:24px;text-align:center}
.division-logo{display:block;margin:0 auto 10px;filter:drop-shadow(0 2px 6px rgba(0,0,0,.5))}

/* SpaceX-like divisions (ported) */
.spacex-divisions .divisions-grid{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:2px;margin-top:20px;position:relative}
.spacex-divisions .eyebrow{margin-bottom:6px}
.spacex-divisions h2{margin-bottom:4px}
.spacex-divisions .division-item{position:relative;height:clamp(300px, 32vh, 520px);overflow:hidden;cursor:pointer;border-radius:0;transition:transform .3s ease}
.spacex-divisions .division-item:first-child{border-top-left-radius:12px;border-bottom-left-radius:12px}
.spacex-divisions .division-item:last-child{border-top-right-radius:12px;border-bottom-right-radius:12px}
.spacex-divisions .division-item:hover{transform:scale(1.02)}
.spacex-divisions .division-item.active{box-shadow:0 0 0 2px var(--accent);}
.spacex-divisions .division-background{position:absolute;inset:0;background-size:cover;background-position:center;transition:transform .3s ease, filter .3s ease;filter:grayscale(100%) contrast(1.05)}
.spacex-divisions .division-item:hover .division-background{transform:scale(1.1);filter:none}
.spacex-divisions .division-overlay{position:absolute;inset:0;background:linear-gradient(to bottom, transparent 0%, rgba(0,0,0,.3) 50%, rgba(0,0,0,.85) 100%)}
.spacex-divisions .division-content{position:absolute;left:0;right:0;bottom:0;padding:30px;text-align:center;z-index:1}
.spacex-divisions .division-content h3,.spacex-divisions .division-content p{text-shadow:0 1px 2px rgba(0,0,0,.6)}

/* Inline division details */
.division-details{margin-top:20px;border:1px solid rgba(255,255,255,.08);border-radius:12px;overflow:hidden;background:rgba(13,15,26,.6);opacity:0;transform:translateY(6px);transition:opacity .25s ease, transform .25s ease}
.division-details.open{opacity:1;transform:none}
.division-details .details-inner{display:grid;grid-template-columns:1fr 2fr;gap:16px;padding:20px}
.division-details .details-media img{width:100%;height:100%;object-fit:cover;border-radius:8px}
.division-details .badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}
.division-details .badge{padding:6px 10px;border:1px solid rgba(255,255,255,.12);border-radius:999px;font-size:12px;color:var(--muted)}
.division-details .details-actions{margin-top:14px;display:flex;gap:12px;flex-wrap:wrap}
.division-details .details-close{margin-left:auto;border:1px solid rgba(255,255,255,.12);background:transparent;color:var(--text);border-radius:8px;padding:8px 12px;cursor:pointer}
.division-details .details-close:hover{border-color:rgba(255,255,255,.24)}
@media (max-width: 768px){.division-details .details-inner{grid-template-columns:1fr}}
.spacex-divisions .division-logo{width:60px;height:60px;margin:0 auto 15px;object-fit:contain;display:block;filter:drop-shadow(0 2px 6px rgba(0,0,0,.5))}
.spacex-divisions .division-content h3{letter-spacing:2px}
.spacex-divisions .division-content p{color:var(--muted)}

/* Carousel */
.carousel{position:relative}
.carousel{--edge-fade: 120px}
.carousel-track{display:grid;grid-auto-flow:column;gap:24px;overflow-x:auto;padding:14px;scroll-snap-type:x mandatory;scroll-snap-stop:always;scroll-padding-inline:14px;mask-image:linear-gradient(to right, transparent 0, black var(--edge-fade), black calc(100% - var(--edge-fade)), transparent 100%)}
.slide{scroll-snap-align:center;min-width:min(92vw, 1200px)}
.gallery .slide{position:relative;aspect-ratio:21/9;border-radius:18px;overflow:hidden;transform:perspective(1000px) rotateX(var(--rx,0deg)) rotateY(var(--ry,0deg)) scale(var(--scale,1));transition:transform .45s cubic-bezier(.22,.61,.36,1), box-shadow .45s cubic-bezier(.22,.61,.36,1)}
.gallery .slide img{width:100%;height:100%;object-fit:cover}
.gallery .slide::after{content:"";position:absolute;inset:0;box-shadow:inset 0 -80px 120px rgba(0,0,0,.45);pointer-events:none}
/* Gradient border glow ring */
.gallery .slide::before{content:"";position:absolute;inset:-1px;padding:1px;border-radius:20px;background:conic-gradient(from 0deg, rgba(87,135,214,.0), rgba(87,135,214,.6), rgba(87,135,214,.0));
  -webkit-mask:linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask:linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;opacity:0;transition:opacity .35s ease;pointer-events:none}
.gallery .slide.active{--scale:1.05;box-shadow:0 28px 80px rgba(0,0,0,.5)}
.gallery .slide.active::before{opacity:.9}
/* Animated caption overlay */
.gallery .slide figcaption{position:absolute;left:0;right:0;bottom:0;padding:16px 18px;color:#fff;background:linear-gradient(180deg, transparent, rgba(0,0,0,.6));transform:translateY(12px);opacity:0;transition:opacity .35s ease, transform .35s ease}
.gallery .slide.active figcaption{opacity:1;transform:none}
.carousel-controls{position:absolute;inset-block:0;inset-inline:0;display:flex;align-items:center;justify-content:space-between;pointer-events:none}
.carousel-btn{pointer-events:auto;display:grid;place-items:center;width:44px;height:44px;border-radius:12px;border:1px solid rgba(255,255,255,.2);background:rgba(13,15,26,.55);color:#fff;backdrop-filter:blur(6px);transition:transform .2s ease, background .2s ease}
.carousel-btn:hover{transform:scale(1.05);background:rgba(13,15,26,.7)}
.carousel-toolbar{display:flex;justify-content:flex-end;margin-top:6px}
.carousel-toggle{display:inline-grid;place-items:center;width:36px;height:36px;border-radius:10px;border:1px solid rgba(255,255,255,.2);background:rgba(13,15,26,.55);color:#fff;backdrop-filter:blur(6px);cursor:pointer}
.carousel-toggle:hover{border-color:rgba(255,255,255,.3);background:rgba(13,15,26,.7)}
.carousel-dots{display:flex;gap:10px;justify-content:center;margin-top:14px}
.carousel-dots button{width:8px;height:8px;border-radius:50%;border:0;background:rgba(255,255,255,.3)}
.carousel-dots button[aria-current="true"]{background:var(--accent)}

/* Subtle parallax: move inner image slightly on hover for active slide */
.gallery .slide.active:hover img{transform:translateY(-2.2%) scale(1.02);transition:transform .35s ease}
/* Wide desktop: show 2 then 3 slides per view */
@media (min-width: 1200px){
  .carousel-track{grid-auto-columns:calc((100% - 24px)/1.5)} /* larger slides */
  .slide{min-width:unset;width:100%}
}
@media (min-width: 1600px){
  .carousel-track{grid-auto-columns:calc((100% - 24px)/2)} /* two big slides per view */
}

/* Scroll reveal (respecte reduced-motion) */
[data-reveal]{opacity:0;transform:translateY(12px)}
.is-visible [data-reveal]{opacity:1;transform:none;transition:opacity .5s ease, transform .5s ease}
@media (prefers-reduced-motion: reduce){
  [data-reveal]{opacity:1;transform:none}
  .is-visible [data-reveal]{transition:none}
}

/* Division modal */
.division-modal{position:fixed;inset:0;z-index:1000;opacity:0;visibility:hidden;transition:opacity .2s ease}
.division-modal.active{opacity:1;visibility:visible}
.division-modal .modal-overlay{position:absolute;inset:0;background:rgba(0,0,0,.85);backdrop-filter:blur(4px)}
.division-modal .modal-content{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);background:rgba(13,15,26,.9);border:1px solid rgba(255,255,255,.06);border-radius:12px;box-shadow:var(--shadow);padding:24px;max-width:640px;width:92%}
.division-modal .modal-close{position:absolute;top:10px;right:10px;border:0;background:transparent;color:#fff;font-size:28px;cursor:pointer}
.division-modal .modal-header{display:flex;gap:16px;align-items:center;margin-bottom:12px}
.division-modal .modal-logo{width:72px;height:72px;border-radius:999px;background:rgba(255,255,255,.06);display:grid;place-items:center;flex-shrink:0}
.division-modal .modal-logo img{width:46px;height:46px;object-fit:contain}
.division-modal .modal-title{margin:0}
.division-modal .modal-subtitle{color:var(--muted);margin:0}
.division-modal .modal-description{color:var(--muted)}

/* Footer */
.site-footer{position:relative;padding-block:48px;background-color:var(--bg-2);background-image:radial-gradient(rgba(255,255,255,.05) 1px, transparent 1px);background-size:22px 22px;background-position:center}
.site-footer::before{content:"";position:absolute;left:4%;right:4%;top:0;height:1px;background:linear-gradient(90deg, rgba(87,135,214,0) 0%, var(--accent-20) 50%, rgba(87,135,214,0) 100%)}
.site-footer .footer-top{display:grid;gap:28px;grid-template-columns:2fr 1fr 1.2fr;align-items:start}
.site-footer .footer-bottom{display:flex;flex-direction:column;gap:12px;align-items:center;justify-content:center;margin-top:22px;padding-top:18px;border-top:1px solid rgba(255,255,255,.08)}
.site-footer .footer-title{margin-bottom:10px;font-size:14px;color:var(--muted);letter-spacing:1px;text-transform:uppercase}
.site-footer .footer-text{color:var(--muted)}
.site-footer .footer-links{list-style:none;display:grid;gap:8px}
.site-footer a{color:var(--text);text-decoration:none}
.site-footer a:hover{color:var(--accent)}
.site-footer .copy{color:var(--muted);text-align:center}
.site-footer .brand-mark{font-weight:800;letter-spacing:3px}
.footer-buttons{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:12px}
/* Footer social icons */
.social-icons{display:flex;gap:10px;align-items:center;justify-content:center}
.social-icon{display:grid;place-items:center;width:38px;height:38px;border-radius:999px;border:1px solid rgba(255,255,255,.1);background:rgba(255,255,255,.04)}
.social-icon:hover{border-color:rgba(255,255,255,.2);background:rgba(255,255,255,.08)}
.legal-links{display:flex;gap:14px;list-style:none;justify-content:center;flex-wrap:wrap;padding:0;margin:0}
.legal-links a{color:var(--muted)}
.legal-links a:hover{color:var(--accent)}

/* Responsive */
@media (max-width: 1024px){.grid.two{grid-template-columns:1fr}.site-footer .footer-top{grid-template-columns:1fr 1fr}}
@media (max-width: 768px){.nav-toggle{display:inline-block}.nav-links{display:none}.division-card{height:320px}.slide{min-width:92vw}}

/* Wide desktops */
@media (min-width: 1100px){
  .grid.two{grid-template-columns:1.2fr .8fr}
}
@media (min-width: 1440px){
  .container{max-width:1320px}
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce){
  *{scroll-behavior:auto}
  .hero-video{animation:none;transition:none}
}

/* Lightbox (gallery) */
.lightbox-modal{position:fixed;inset:0;z-index:1200;display:grid;place-items:center;background:transparent;opacity:0;visibility:hidden;transition:opacity .2s ease}
.lightbox-modal.open{opacity:1;visibility:visible}
.lightbox-modal .overlay{position:absolute;inset:0;background:rgba(0,0,0,.85);backdrop-filter:blur(4px)}
.lightbox-modal .content{position:relative;max-width:min(96vw, 1280px);max-height:90vh;width:100%;padding:20px;box-sizing:border-box}
.lightbox-modal .image-wrap{margin:0;display:grid;place-items:center;background:#000;border-radius:12px;overflow:hidden;border:1px solid rgba(255,255,255,.12)}
.lightbox-modal img{max-width:100%;max-height:80vh;object-fit:contain}
.lightbox-modal .caption{margin-top:10px;color:var(--muted);text-align:center}
.lightbox-btn{position:absolute;display:grid;place-items:center;width:44px;height:44px;border-radius:50%;border:1px solid rgba(255,255,255,.2);background:rgba(13,15,26,.6);color:#fff;backdrop-filter:blur(6px);cursor:pointer}
.lightbox-btn:hover{border-color:rgba(255,255,255,.3)}
.lightbox-btn.close{top:10px;right:10px;font-size:24px;line-height:1}
.lightbox-btn.nav.prev{left:10px;top:50%;transform:translateY(-50%)}
.lightbox-btn.nav.next{right:10px;top:50%;transform:translateY(-50%)}