:root{--accent:#e63946;--accent-d:#c42b38;--dark:#0f1b2d;--soft:#f4f6f9;--text:#1e293b;--muted:#64748b;--line:#e2e8f0;--legrand:#005eb8;--schneider:#2e9e48;--debflex:#e2001a;--radius:12px}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:70px}
body{margin:0;font-family:Inter,"Segoe UI",system-ui,Arial,sans-serif;color:var(--text);background:#fff;line-height:1.55}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:1160px;margin:0 auto;padding:0 20px}
/* En-tête */
.site-header{position:sticky;top:0;z-index:50;background:rgba(15,27,45,.97);color:#fff;backdrop-filter:blur(6px)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;height:60px}
.brand{font-weight:700;font-size:20px}.brand span{color:var(--accent)}
.nav{display:flex;gap:6px}
.nav a{padding:8px 13px;border-radius:20px;font-size:15px;color:#cfd6e2}
.nav a:hover,.nav a.on{background:rgba(255,255,255,.12);color:#fff}
.burger{display:none;background:none;border:0;color:#fff;font-size:26px;cursor:pointer}
@media(max-width:820px){.burger{display:block}.nav{display:none;position:absolute;top:60px;left:0;right:0;flex-direction:column;background:var(--dark);padding:10px 20px 16px}.nav.open{display:flex}}
/* Boutons */
.btn{display:inline-block;padding:11px 24px;border-radius:30px;font-weight:600;border:2px solid transparent;transition:.2s;cursor:pointer;font-size:15px}
.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-d)}
.btn-ghost{border-color:#fff;color:#fff}.btn-ghost:hover{background:rgba(255,255,255,.12)}
.btn-outline{border-color:var(--accent);color:var(--accent)}.btn-outline:hover{background:var(--accent);color:#fff}
/* Hero */
.hero{background:linear-gradient(135deg,#0f1b2d,#1b2f4d);color:#fff;padding:56px 0}
.hero .wrap{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center}
.hero h1{font-size:clamp(28px,4vw,42px);line-height:1.2;margin:0 0 14px}.hero h1 em{color:var(--accent);font-style:normal}
.hero p{color:#cfd6e2;font-size:17px;margin:0 0 24px}.hero .btn{margin:0 8px 8px 0}
@media(max-width:820px){.hero .wrap{grid-template-columns:1fr}}
.page-hero{background:var(--dark);color:#fff;padding:38px 0;text-align:center}
.page-hero h1{margin:0 0 8px;font-size:clamp(26px,4vw,36px)}.page-hero p{margin:0 auto;max-width:720px;color:#cfd6e2}
/* Sections */
.section{padding:58px 0}.section.alt{background:var(--soft)}
.head{text-align:center;margin-bottom:30px}.head h2{margin:0 0 6px;font-size:clamp(24px,3vw,32px)}.head p{margin:0;color:var(--muted)}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(290px,1fr));gap:24px}
.cta{text-align:center;margin-top:30px}.cta .btn{margin:0 6px 8px}
/* Vidéo (miniature -> lecteur au clic) */
.video{position:relative;display:block;width:100%;aspect-ratio:16/9;padding:0;border:0;background:#000;cursor:pointer;overflow:hidden;border-radius:var(--radius)}
.video img,.video iframe{position:absolute;inset:0;width:100%;height:100%;border:0;object-fit:cover}
.video img{opacity:.88;transition:.25s}.video:hover img{opacity:1;transform:scale(1.03)}
.video:after{content:"";position:absolute;left:50%;top:50%;width:66px;height:46px;margin:-23px 0 0 -33px;background:var(--accent);border-radius:12px;z-index:1}
.video:before{content:"";position:absolute;left:50%;top:50%;margin:-10px 0 0 -6px;border-left:17px solid #fff;border-top:10px solid transparent;border-bottom:10px solid transparent;z-index:2}
.video.playing:before,.video.playing:after{display:none}
.vcard h3{font-size:17px;margin:12px 0 4px;line-height:1.3}.vcard p{margin:0 0 6px;color:var(--muted);font-size:14px}
.link{font-size:14px;font-weight:600;color:var(--accent)}.link:hover{text-decoration:underline}
/* Cartes schémas */
.scard{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.2s}
.scard:hover{transform:translateY(-4px);box-shadow:0 10px 22px -8px rgba(0,0,0,.2);border-color:var(--accent)}
.scard .thumb{aspect-ratio:4/3;background:var(--soft);overflow:hidden}.scard .thumb img{width:100%;height:100%;object-fit:cover}
.scard .body{padding:14px 16px 16px;display:flex;flex-direction:column;flex:1}
.scard h3{margin:8px 0 4px;font-size:16px}.scard p{margin:0 0 8px;font-size:14px;color:var(--muted);flex:1}
.badge{display:inline-block;width:fit-content;font-size:11px;font-weight:800;text-transform:uppercase;padding:3px 9px;border-radius:6px}
.b-legrand{background:#e0efff;color:var(--legrand)}.b-schneider{background:#e6f9eb;color:var(--schneider)}.b-debflex{background:#fee2e2;color:var(--debflex)}.b-generic{background:#eef1f5;color:var(--muted)}
.count{font-size:12px;color:var(--muted);margin-left:8px}
/* Filtres */
.tools{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-bottom:28px}
.chip{padding:8px 16px;border-radius:20px;border:1px solid var(--line);background:#fff;cursor:pointer;font-size:14px;font-weight:600;color:var(--text)}
.chip.on{background:var(--dark);border-color:var(--dark);color:#fff}
.search{padding:9px 16px;border-radius:20px;border:1px solid var(--line);font-size:15px;min-width:240px}
/* Aller plus loin */
.more{display:block;padding:20px;background:#fff;border-radius:var(--radius);border:1px solid var(--line);transition:.2s}
.more:hover{border-color:var(--accent);box-shadow:0 8px 18px -8px rgba(0,0,0,.18)}
.more h3{margin:0 0 6px;font-size:17px}.more p{margin:0;color:var(--muted);font-size:14px}
/* Pied de page */
.site-footer{background:var(--dark);color:#cfd6e2;padding:34px 0;text-align:center}
.site-footer .brand{color:#fff}.social{margin:14px 0 4px;display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
.social a{padding:6px 14px;border:1px solid rgba(255,255,255,.25);border-radius:20px;font-size:14px}.social a:hover{background:rgba(255,255,255,.12)}
.hidden{display:none!important}