/* ===== Reset + base */
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0; color:var(--text); background:var(--bg);
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  line-height:1.65;
}

/* ===== Palette issue du logo ELUCC */
:root{
  --blue:#0b5aa2;   /* bleu sceau */
  --gold:#f0c419;   /* anneau doré */
  --red:#c81e1e;    /* cœur */
  --green:#2e8b57;  /* feuilles */
  --bg:#ffffff;
  --surface:#f7fafc;  /* fond cartes */
  --text:#0f172a;
  --muted:#64748b;
  --ring:rgba(11,90,162,.18);
  --shadow:0 10px 30px rgba(2,6,23,.06), 0 2px 10px rgba(2,6,23,.04);
}

.container{max-width:1140px;margin:0 auto;padding:0 20px}
.h1{font-size:clamp(1.9rem,1.2rem + 2.2vw,3rem);margin:0 0 10px;letter-spacing:.2px}
.h2{font-size:clamp(1.25rem,1rem + 1vw,1.6rem);margin:0 0 10px}
.h3{font-size:1.05rem;margin:0 0 8px}
.lead{font-size:1.06rem;color:var(--muted);margin:6px 0 16px}
.badge{display:inline-block;padding:4px 10px;border-radius:999px;background:var(--surface);border:1px solid #e5e7eb;font-size:.78rem;color:var(--muted)}
.kbd{border:1px solid #e2e8f0;border-bottom-width:3px;border-radius:6px;padding:2px 6px;font:600 .8rem/1 monospace;background:#fff}

/* ===== Boutons */
.btn{display:inline-block;padding:12px 16px;border-radius:10px;background:var(--red);color:#fff;text-decoration:none;font-weight:700;box-shadow:var(--shadow)}
.btn:hover{filter:brightness(.98)}
.btn-ghost{background:transparent;border:2px solid var(--gold);color:var(--text)}
.btn-ghost:hover{background:var(--gold)}
.btn-blue{background:var(--blue)}

/* ===== Header collant */
.site-header{position:sticky;top:0;background:rgba(255,255,255,.9);backdrop-filter:blur(8px);border-bottom:1px solid #eef2f7;z-index:20}
.nav{display:flex;align-items:center;gap:16px;padding:10px 0}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:inherit;font-weight:900}
.logo{height:50px;width:auto}
.brand-text{display:none}
.menu-toggle{margin-left:auto;border:1px solid #e5e7eb;border-radius:9px;background:#fff;padding:8px 10px}
.menu{display:none;flex-wrap:wrap;align-items:center;gap:12px}
.menu-link{position:relative;text-decoration:none;color:inherit;padding:8px 6px;border-radius:8px}
.menu-link.active::after{content:"";position:absolute;left:8px;right:8px;bottom:4px;height:3px;border-radius:2px;background:linear-gradient(90deg,var(--blue),var(--gold))}

@media (min-width:900px){
  .menu-toggle{display:none}
  .menu{display:flex !important;margin-left:auto}
  .brand-text{display:inline}
}

/* ===== Hero & Slider (accueil) */
.hero{padding:18px 0 24px;border-bottom:1px solid #eef2f7}
.slider{position:relative;border-radius:16px;overflow:hidden;border:1px solid #e5e7eb}
.slides{position:relative;height:clamp(240px,38vw,440px)}
.slide{position:absolute;inset:0;opacity:0;transition:opacity .6s ease}
.slide.is-active{opacity:1}
.slide img{width:100%;height:100%;object-fit:cover;display:block;filter:saturate(1.05)}
.slide figcaption{position:absolute;left:12px;bottom:12px;background:rgba(0,0,0,.5);color:#fff;padding:6px 10px;border-radius:8px;font-size:.92rem}
.slider-btn{position:absolute;top:50%;transform:translateY(-50%);border:none;background:rgba(255,255,255,.85);padding:10px 12px;border-radius:10px;cursor:pointer;box-shadow:var(--shadow)}
.prev{left:10px}.next{right:10px}
.dots{position:absolute;left:50%;transform:translateX(-50%);bottom:8px;display:flex;gap:6px}
.dots button{width:10px;height:10px;border-radius:50%;border:0;background:rgba(255,255,255,.7)}
.dots button[aria-current="true"]{background:var(--gold)}
.hero .container{display:grid;gap:22px}
.hero-cta{padding:6px 0}
@media (min-width:900px){
  .hero .container{grid-template-columns:3fr 2fr;align-items:center}
}

/* ===== Sections & layouts décoratifs */
.section{padding:34px 0}
.section .overline{letter-spacing:.18em;text-transform:uppercase;color:var(--blue);font-weight:800;font-size:.78rem}
.grid-2{display:grid;gap:20px}
@media (min-width:900px){.grid-2{grid-template-columns:1fr 1fr}}
.grid-3{display:grid;gap:18px}
@media (min-width:900px){.grid-3{grid-template-columns:repeat(3,1fr)}}
.cards{display:grid;gap:16px}
@media (min-width:700px){.cards{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.cards{grid-template-columns:repeat(3,1fr)}}

/* ===== Card + icône */
.card{
  background:linear-gradient(180deg,#fff, #fafcff);
  border:1px solid #eef2f7;border-radius:14px;padding:18px;box-shadow:var(--shadow);
}
.card .icon{
  width:36px;height:36px;border-radius:10px;display:grid;place-items:center;
  background:rgba(11,90,162,.07);border:1px solid var(--ring);margin-bottom:8px;
}
.card img.cover{width:100%;height:160px;object-fit:cover;border-radius:10px;margin:4px 0 10px}

/* ===== Timeline (énumérations visuelles) */
.timeline{position:relative;margin:10px 0 0;padding-left:28px}
.timeline::before{content:"";position:absolute;left:12px;top:0;bottom:0;width:2px;background:linear-gradient(#e5e7eb,#cbd5e1)}
.timeline .item{position:relative;margin:0 0 14px}
.timeline .item::before{content:"";position:absolute;left:-22px;top:4px;width:12px;height:12px;border-radius:50%;background:var(--gold);box-shadow:0 0 0 3px #fff}

/* ===== Organigramme (gouvernance) */
.org{--gap:12px;display:grid;gap:var(--gap)}
.org .lvl{display:grid;gap:var(--gap)}
@media (min-width:900px){ .org .lvl{grid-template-columns:repeat(var(--cols,1),1fr)} }
.node{
  text-align:center;padding:12px;border-radius:12px;background:#fff;border:1px solid #e5e7eb;box-shadow:var(--shadow)
}
.node .role{font-weight:800}
.connector{height:16px;border-left:2px solid #e5e7eb;margin:0 auto}

/* ===== Accordéons (textes longs) */
.accordion{border:1px solid #e5e7eb;border-radius:12px;overflow:hidden;background:#fff;box-shadow:var(--shadow)}
.acc-item + .acc-item{border-top:1px solid #e5e7eb}
.acc-btn{
  width:100%;text-align:left;padding:14px 16px;font-weight:800;background:#fff;border:0;cursor:pointer;display:flex;justify-content:space-between;align-items:center
}
.acc-panel{display:none;padding:0 16px 16px 16px;color:var(--muted)}
.acc-item[aria-expanded="true"] .acc-panel{display:block}

/* ===== Listes */
.bullets{padding-left:18px}
.kpis{display:grid;gap:14px}
@media (min-width:800px){.kpis{grid-template-columns:repeat(3,1fr)}}
.kpi{padding:16px;border-radius:12px;background:#fff;border:1px solid #e5e7eb;box-shadow:var(--shadow);text-align:center}
.kpi .big{font-weight:900;font-size:1.6rem}

/* ===== Footer */
.site-footer{border-top:1px solid #eef2f7;padding:20px 0;margin-top:20px;background:linear-gradient(180deg,#fff,#fafafa)}
.footer-grid{display:flex;gap:12px;align-items:center;justify-content:space-between;flex-wrap:wrap}

/* ===== Accessibilité */
.skip-link{position:absolute;left:-9999px;top:auto}
.skip-link:focus{left:10px;top:10px;background:#000;color:#fff;padding:8px;border-radius:6px;z-index:100}
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease, transform .5s ease}
.reveal.is-in{opacity:1;transform:none}
/* Effets hover subtils */
.card{ transition: transform .25s ease, box-shadow .25s ease; }
.card:hover{ transform: translateY(-4px); box-shadow: 0 18px 40px rgba(2,6,23,.08), 0 4px 14px rgba(2,6,23,.06); }

.menu-link{ transition: color .15s ease; }
.menu-link:hover{ color: var(--blue); }

.btn{ transition: transform .15s ease, filter .2s ease; }
.btn:hover{ transform: translateY(-1px); filter: brightness(.98); }

a.link:hover{ text-decoration: none; }