:root{
  --rouge:#C8102E; --rouge-dark:#9c0c22; --encre:#1a1d29; --gris:#5b6172; --bg:#f6f7fb;
  --carte:#ffffff; --bord:#e6e8f0; --radius:16px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--encre);line-height:1.55}
img{max-width:100%;height:auto;display:block}
a{color:var(--rouge-dark);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:1100px;margin:0 auto;padding:0 18px}

header.site{position:sticky;top:0;z-index:50;background:var(--encre);color:#fff;box-shadow:0 2px 10px rgba(0,0,0,.15)}
header.site .bar{display:flex;align-items:center;justify-content:space-between;padding:12px 18px;max-width:1100px;margin:0 auto}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.05rem;color:#fff}
.brand .dot{width:10px;height:10px;background:var(--rouge);border-radius:50%}
nav.main{display:flex;gap:22px}
nav.main a{color:#dfe1ea;font-weight:600;font-size:.95rem}
nav.main a:hover{color:#fff;text-decoration:none}
.burger{display:none;background:none;border:0;color:#fff;font-size:1.6rem;cursor:pointer}
@media (max-width:760px){
  nav.main{display:none;position:absolute;top:56px;left:0;right:0;background:var(--encre);flex-direction:column;padding:10px 18px 18px;gap:14px}
  nav.main.open{display:flex}
  .burger{display:block}
}

.hero{background:linear-gradient(135deg,var(--rouge) 0%,var(--rouge-dark) 100%);color:#fff;padding:46px 0 38px}
.hero h1{margin:0 0 10px;font-size:1.9rem;line-height:1.25}
.hero p{margin:0;max-width:640px;opacity:.95;font-size:1.02rem}
@media (max-width:600px){.hero h1{font-size:1.5rem}}

.filters{display:flex;flex-wrap:wrap;gap:8px;margin:22px 0 8px}
.chip{border:1px solid var(--bord);background:#fff;padding:7px 14px;border-radius:999px;font-size:.85rem;font-weight:600;cursor:pointer;color:var(--gris)}
.chip.active{background:var(--encre);color:#fff;border-color:var(--encre)}
.search{margin:14px 0 6px}
.search input{width:100%;padding:11px 14px;border-radius:12px;border:1px solid var(--bord);font-size:.95rem}
.count{font-size:.82rem;color:var(--gris);margin:10px 2px 0}

.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:18px;margin:18px 0 40px}
.card{background:var(--carte);border:1px solid var(--bord);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:transform .15s,box-shadow .15s}
.card:hover{transform:translateY(-3px);box-shadow:0 10px 24px rgba(20,20,40,.08);text-decoration:none}
.card .thumb{height:150px;background:#eef0f6;display:flex;align-items:center;justify-content:center;overflow:hidden}
.card .thumb img{width:100%;height:100%;object-fit:cover}
.card .thumb .ph{font-size:1.8rem;opacity:.35;font-weight:800;letter-spacing:.05em}
.card .body{padding:16px;flex:1;display:flex;flex-direction:column;gap:8px}
.tags{display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.tag{font-size:.7rem;font-weight:700;padding:3px 9px;border-radius:999px;color:#fff;letter-spacing:.02em}
.tag.kind{background:#e9eaf0;color:var(--gris)}
.card .date{font-size:.78rem;color:var(--gris);font-weight:600}
.card h3{margin:0;font-size:1.05rem;line-height:1.35;color:var(--encre)}
.card p.excerpt{margin:0;font-size:.88rem;color:var(--gris);flex:1}
.card .foot{font-size:.78rem;color:var(--rouge-dark);font-weight:700}

.article-head{padding:34px 0 10px}
.article-head .tags{margin-bottom:12px}
.article-head h1{font-size:1.7rem;margin:6px 0 8px;line-height:1.3}
.article-head .meta{color:var(--gris);font-size:.9rem}
.article-body{background:var(--carte);border:1px solid var(--bord);border-radius:var(--radius);padding:26px;margin:18px 0 30px}
.article-body img{border-radius:10px;margin:10px 0}
.article-body p{margin:0 0 14px}
.article-body h2,.article-body h3{margin-top:22px}
.pdf-list{list-style:none;padding:0;margin:20px 0 0;display:flex;flex-direction:column;gap:8px}
.pdf-list a{display:flex;align-items:center;gap:10px;background:#fbeceb;border:1px solid #f2c9c6;color:var(--rouge-dark);padding:10px 14px;border-radius:10px;font-weight:700;font-size:.9rem}
.pdf-list a:hover{background:#f6d9d7;text-decoration:none}
.back{display:inline-block;margin:18px 0 0;font-weight:700;font-size:.9rem}
.source-note{margin-top:26px;font-size:.8rem;color:var(--gris)}

footer.site{background:var(--encre);color:#c7cad6;padding:34px 0;margin-top:50px;font-size:.85rem}
footer.site a{color:#fff}