/* Metrikx — site produits. Charte claire : fond blanc et gris très clair, texte anthracite, rouge Metrikx #FF0000, formes en X.
   Thème clair assumé (pas de bascule clair/sombre). */
:root{
  color-scheme:light;
  --bg:#FFFFFF; --bg2:#F4F5F7; --panel:#FFFFFF; --panel2:#F4F5F7; --line:#E3E5E9; --line2:#CDD0D6;
  --ink:#16171B; --muted:#5A5E66; --dim:#80848C;
  --red:#FF0000; --red-ink:#D40000; --red-deep:#9E0B0B;
  --stage:#F4F5F7; --stage2:#E4E6EA;
  --ok:#14853E; --dark:#16171B;
  --f-display:"Saira","Arial Narrow",system-ui,sans-serif;
  --f-body:"Source Sans 3","Segoe UI",Roboto,Arial,sans-serif;
  --f-mono:"JetBrains Mono",ui-monospace,Menlo,Consolas,monospace;
  --maxw:1200px; --r:8px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--f-body);font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--red-ink)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:2px solid var(--red-ink);outline-offset:3px}
h1,h2,h3,h4{font-family:var(--f-display);font-weight:700;line-height:1.08;margin:0;text-wrap:balance;letter-spacing:.005em}
h1{font-size:clamp(2.2rem,5.2vw,4rem);text-transform:uppercase}
h2{font-size:clamp(1.6rem,3.2vw,2.5rem)}
h3{font-size:1.2rem}
p{margin:0}
.wrap{max-width:var(--maxw);margin:0 auto;padding-inline:20px}
.muted{color:var(--muted)}
.lede{font-size:1.15rem;color:var(--muted);max-width:62ch}
.kicker{font-family:var(--f-mono);font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;color:var(--red-ink);display:inline-flex;align-items:center;gap:10px}
.kicker::before{content:"";width:18px;height:2px;background:var(--red)}
.stack{display:grid;gap:14px;align-content:start}
.sec{padding-block:clamp(56px,8vw,100px);position:relative}
.sec.alt{background:var(--bg2)}
.sec-head{display:grid;gap:12px;margin-bottom:36px}
.vh{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* En-tête */
.hdr{position:sticky;top:env(safe-area-inset-top,0px);z-index:40;background:rgba(255,255,255,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.hdr::after{content:"";position:absolute;left:0;bottom:-1px;width:180px;height:3px;background:var(--red)}
.hdr .wrap{display:flex;align-items:center;gap:22px;padding-block:12px}
.hdr .logo img{height:26px;width:auto}
.nav{display:flex;gap:4px 22px;margin-left:auto;font-family:var(--f-display);font-weight:600;font-size:.98rem;letter-spacing:.02em}
.nav a{color:var(--ink);text-decoration:none;padding:6px 0;border-bottom:2px solid transparent;white-space:nowrap}
.nav a:hover,.nav a[aria-current="page"]{border-bottom-color:var(--red)}
.boost{display:flex;align-items:center;gap:8px;font-family:var(--f-display);font-weight:700;font-size:.62rem;letter-spacing:.14em;color:var(--muted);text-decoration:none;white-space:nowrap}
.boost span.pill{background:#fff;border:1px solid var(--line);border-radius:7px;padding:4px 8px;display:inline-flex}
.boost img{height:18px;width:auto}
@media (max-width:980px){.hdr .wrap{flex-wrap:wrap}.nav{order:3;width:100%;margin-left:0;overflow-x:auto;padding-bottom:4px}}
@media (max-width:520px){.boost .t{display:none}}

/* Boutons */
.btn{display:inline-flex;align-items:center;gap:10px;font-family:var(--f-display);font-weight:700;letter-spacing:.04em;text-transform:uppercase;font-size:.9rem;text-decoration:none;padding:12px 22px;border:2px solid var(--red);color:#fff;background:var(--red);clip-path:polygon(0 0,calc(100% - 12px) 0,100% 12px,100% 100%,12px 100%,0 calc(100% - 12px));transition:background .15s}
.btn:hover{background:#d90000}
.btn.ghost{background:#fff;color:var(--ink);border-color:var(--line2)}
.btn.ghost:hover{border-color:var(--red);background:#FFF4F4}
.btns{display:flex;flex-wrap:wrap;gap:12px}

/* Hero */
.hero{position:relative;overflow:hidden;min-height:min(74vh,680px);display:grid;align-items:center;background:linear-gradient(180deg,#FFFFFF,#F4F5F7)}
.hero .bg{position:absolute;top:0;right:0;bottom:0;width:52%;background-size:cover;background-position:40% 30%;clip-path:polygon(22% 0,100% 0,100% 100%,0 100%,30% 50%)}
.hero .x1,.hero .x2{position:absolute;pointer-events:none}
.hero .x1{top:0;bottom:0;right:calc(52% - 40px);width:120px;background:var(--red);clip-path:polygon(30% 0,62% 0,30% 50%,62% 100%,30% 100%,0 50%);opacity:.95}
.hero .x2{right:0;bottom:0;width:min(26vw,300px);height:min(18vw,200px);background:linear-gradient(135deg,transparent 50%,#FF0000 50.2%,#C40000 100%)}
.hero .wrap{position:relative;width:100%;padding-block:clamp(60px,9vw,120px);display:grid;gap:22px}
.hero .wrap>*{max-width:min(500px,calc(46vw - 170px))}
.hero h1{font-size:clamp(2rem,4.2vw,3.5rem)}
@media (max-width:860px){.hero .bg{position:relative;width:100%;height:240px;clip-path:polygon(0 0,100% 0,100% 100%,0 100%)}.hero{display:block}.hero .x1,.hero .x2{display:none}.hero .wrap>*{max-width:100%}}
.hero h1 span{display:block}
.hero h1 span:nth-child(2){color:var(--ink)}
.hero h1 span:nth-child(3){color:var(--red-ink)}
.hero .lede{color:var(--muted)}
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);background:radial-gradient(120% 140% at 100% 0%,#FFE9E9 0%,#F4F5F7 45%,#FFFFFF 100%)}
.page-hero::after{content:"";position:absolute;right:-60px;top:-40px;width:340px;height:340px;background:url(img/metrikx-icone.png) no-repeat center/contain;opacity:.06;transform:rotate(-8deg)}
.page-hero .wrap{position:relative;padding-block:clamp(48px,7vw,84px) clamp(36px,5vw,56px);display:grid;gap:16px}
.crumbs{font-family:var(--f-mono);font-size:.72rem;color:var(--dim)}
.crumbs a{color:var(--muted);text-decoration:none}
.crumbs a:hover{color:var(--ink)}

/* Grilles et cartes */
.grid{display:grid;gap:20px}
.g2{grid-template-columns:repeat(auto-fit,minmax(min(100%,380px),1fr))}
.g3{grid-template-columns:repeat(auto-fit,minmax(min(100%,300px),1fr))}
.g4{grid-template-columns:repeat(auto-fill,minmax(min(100%,250px),1fr))}
.grid>*{min-width:0}
.card{background:var(--panel);border:1px solid var(--line);box-shadow:0 1px 2px rgba(22,23,27,.04);border-radius:var(--r);padding:22px;display:grid;gap:10px;align-content:start;position:relative}
.card .k{font-family:var(--f-mono);font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;color:var(--red-ink)}
.card ul{margin:0;padding-left:18px;color:var(--muted);font-size:.95rem}
.card.link{text-decoration:none;color:inherit;transition:border-color .15s,transform .15s}
.card.link:hover{border-color:var(--red);transform:translateY(-2px)}
.card.cut{clip-path:polygon(0 0,calc(100% - 18px) 0,100% 18px,100% 100%,0 100%)}
.card.cut::before{content:"";position:absolute;right:0;top:0;width:18px;height:18px;background:linear-gradient(225deg,var(--red) 50%,transparent 50%)}

/* Arguments */
.args{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,250px),1fr));gap:0;border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.arg{padding:24px;border-right:1px solid var(--line);display:grid;gap:8px;align-content:start;background:var(--panel)}
.arg:last-child{border-right:0}
.arg strong{font-family:var(--f-display);font-size:2rem;color:var(--red-ink);line-height:1}
@media (max-width:700px){.arg{border-right:0;border-bottom:1px solid var(--line)}}

/* Produits */
.stage{background:radial-gradient(90% 80% at 50% 40%,#FFFFFF 0%,var(--stage) 60%,var(--stage2) 100%);border-radius:6px;display:flex;align-items:center;justify-content:center;padding:18px;aspect-ratio:4/3;width:100%;max-width:100%;overflow:hidden}
.stage img{min-width:0;min-height:0;max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain;filter:drop-shadow(0 14px 18px rgba(0,0,0,.28))}
.stage.photo{padding:0;overflow:hidden;background:#E4E6EA}
.stage.photo img{width:100%;height:100%;object-fit:cover;filter:none}
.stage svg{width:62%;height:auto}
.pcard{background:var(--panel);box-shadow:0 1px 2px rgba(22,23,27,.05);border:1px solid var(--line);border-radius:var(--r);padding:12px;display:grid;gap:12px;align-content:start;text-decoration:none;color:inherit;transition:border-color .15s,transform .15s}
.pcard:hover{border-color:var(--red);transform:translateY(-3px)}
.pcard .meta{padding:0 6px 6px;display:grid;gap:6px}
.pcard .ref{font-family:var(--f-display);font-weight:700;font-size:1.12rem;letter-spacing:.02em}
.pcard .sub{color:var(--muted);font-size:.92rem;line-height:1.4}
.pcard .tags{display:flex;flex-wrap:wrap;gap:6px}
.tag{font-family:var(--f-mono);font-size:.66rem;letter-spacing:.04em;padding:3px 8px;border-radius:3px;background:var(--panel2);border:1px solid var(--line);color:var(--muted)}
.tag.red{background:#FFF0F0;border-color:#F5B5B5;color:#B00000}
.filters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:24px}
.filters button{font-family:var(--f-display);font-weight:600;font-size:.88rem;letter-spacing:.02em;padding:8px 14px;border:1px solid var(--line2);border-radius:30px;background:#fff;color:var(--ink);cursor:pointer}
.filters button[aria-pressed="true"]{background:var(--red);border-color:var(--red);color:#fff}
.gamme-title{display:flex;align-items:baseline;gap:14px;margin:44px 0 18px;padding-bottom:10px;border-bottom:1px solid var(--line)}
.gamme-title h2{font-size:1.6rem}
.gamme-title span{font-family:var(--f-mono);font-size:.72rem;color:var(--dim)}

/* Fiche produit */
.prod-hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:clamp(24px,5vw,56px);align-items:center}
@media (max-width:860px){.prod-hero{grid-template-columns:1fr}}
.prod-hero h1{font-size:clamp(2rem,4.4vw,3.3rem)}
.badges{display:flex;flex-wrap:wrap;gap:8px}
.flow{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-family:var(--f-mono);font-size:.78rem}
.flow span{padding:7px 11px;border:1px solid var(--line2);border-radius:4px;background:#fff;color:var(--ink)}
.flow span.me{background:var(--red);border-color:var(--red);color:#fff;font-weight:500}
.flow i{font-style:normal;color:var(--red-ink)}
.specs{width:100%;border-collapse:collapse;font-size:.95rem}
.specs caption{text-align:left;font-family:var(--f-display);font-weight:700;font-size:1.1rem;padding:18px 0 8px;color:var(--ink)}
.specs th,.specs td{text-align:left;vertical-align:top;padding:11px 14px;border-bottom:1px solid var(--line)}
.specs th{width:38%;font-weight:600;color:var(--ink);background:var(--bg2)}
.specs td{color:var(--ink)}
.specs tr:first-child th,.specs tr:first-child td{border-top:1px solid var(--line)}
.tbl-wrap{overflow-x:auto}
.ticks{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.ticks li{position:relative;padding-left:22px;color:var(--ink)}
.ticks li::before{content:"";position:absolute;left:0;top:.55em;width:10px;height:10px;background:var(--red);clip-path:polygon(0 0,100% 50%,0 100%)}
.dl{display:flex;align-items:center;gap:14px;padding:14px 16px;border:1px solid var(--line2);border-radius:var(--r);background:var(--panel);text-decoration:none;color:var(--ink)}
.dl:hover{border-color:var(--red)}
.dl b{font-family:var(--f-mono);font-size:.7rem;padding:4px 7px;background:var(--red);color:#fff;border-radius:3px}
.dl small{display:block;color:var(--muted);font-size:.82rem}
.note{border-left:3px solid var(--red);background:var(--bg2);padding:14px 18px;color:var(--ink);font-size:.95rem}

/* Tableau de compatibilité */
.cmp{border-collapse:collapse;width:100%;min-width:900px;font-size:.88rem}
.cmp th,.cmp td{border-bottom:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
.cmp thead th{font-family:var(--f-mono);font-weight:500;font-size:.68rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);background:var(--bg2)}
.cmp td:first-child{font-family:var(--f-display);font-weight:700;white-space:nowrap}
.cmp .y{color:var(--ok)}

/* Architecture */
.archi{border:1px solid var(--line);border-radius:14px;overflow-x:auto;box-shadow:0 18px 40px -28px rgba(22,23,27,.35)}
.archi svg{display:block;min-width:900px;width:100%;height:auto}

/* Formulaire */
.form{display:grid;gap:14px}
.form label{display:grid;gap:6px;font-weight:600;font-size:.94rem}
.form input,.form select,.form textarea{font:inherit;font-weight:400;padding:11px 12px;border:1px solid var(--line2);border-radius:6px;background:#fff;color:var(--ink)}
.form textarea{min-height:140px;resize:vertical}
.form .row{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,220px),1fr));gap:14px}
.form .ok{border-left:3px solid var(--ok);background:var(--bg2);padding:12px 14px}
.form button{justify-self:start;cursor:pointer}

/* Pied */
.ftr{border-top:1px solid var(--line);background:#EEF0F2;position:relative;overflow:hidden}
.ftr::before{content:"";position:absolute;right:0;top:0;width:220px;height:6px;background:var(--red)}
.ftr .cols{display:grid;grid-template-columns:minmax(0,1.4fr) repeat(3,minmax(0,1fr));gap:32px;padding-block:54px 28px}
.ftr h4{font-family:var(--f-mono);font-weight:500;font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--red-ink);margin-bottom:12px}
.ftr ul{list-style:none;margin:0;padding:0;display:grid;gap:7px;font-size:.93rem}
.ftr a{color:var(--ink);text-decoration:none}
.ftr a:hover{color:var(--red-ink)}
.ftr .bottom{border-top:1px solid var(--line);padding-block:16px;display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;font-size:.82rem;color:var(--dim)}
.ftr .bottom a{color:var(--dim)}
@media (max-width:860px){.ftr .cols{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.ftr .cols{grid-template-columns:1fr}}
.legal h2{font-size:1.3rem;margin:28px 0 8px}
.legal p{color:var(--ink);max-width:70ch}

/* ===== Rendus 3D ===== */
.stage picture{display:flex;align-items:center;justify-content:center;width:100%;height:100%}
.stage picture img{min-width:0;min-height:0;max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain}

/* ===== Chaîne en 5 étapes (rendus 3D) ===== */
.proc{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:22px;background:linear-gradient(180deg,#FFFFFF,#F4F5F7);border:1px solid var(--line);border-radius:16px;padding:30px 22px 26px;box-shadow:0 18px 40px -30px rgba(22,23,27,.35)}
.proc-step{display:flex;flex-direction:column;align-items:center;text-align:center;gap:12px;min-width:0}
.proc-img{position:relative;width:100%;aspect-ratio:1/1;display:flex;align-items:center;justify-content:center}
.proc-img picture{display:flex;align-items:center;justify-content:center;width:100%;height:100%}
.proc-img img{max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain;transition:transform .4s cubic-bezier(.2,.7,.2,1)}
.proc-step:hover .proc-img img{transform:translateY(-4px) scale(1.04)}
.proc-step:not(:last-child) .proc-img::after{content:"";position:absolute;left:calc(100% - 4px);top:62%;width:30px;height:2px;background:repeating-linear-gradient(90deg,var(--red) 0 6px,transparent 6px 11px);background-size:22px 2px;animation:procflow 1s linear infinite}
@keyframes procflow{to{background-position:22px 0}}
.proc-pill{font-family:var(--f-mono);font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:#fff;background:var(--dark);padding:6px 12px;border-radius:20px;white-space:nowrap}
.proc-step.hl .proc-pill{background:var(--red)}
.proc ul{list-style:none;margin:0;padding:0;display:grid;gap:4px;font-family:var(--f-mono);font-size:.78rem;color:var(--ink)}
.proc small{font-family:var(--f-mono);font-size:.72rem;color:var(--dim)}
@media (max-width:900px){.proc{grid-template-columns:1fr 1fr}.proc-img::after{display:none}}
@media (max-width:520px){.proc{grid-template-columns:1fr}.proc-step{display:grid;grid-template-columns:40% 1fr;column-gap:14px;text-align:left;align-items:start;justify-items:start}.proc-img{grid-row:1 / span 3;width:100%}}
@media (prefers-reduced-motion:reduce){.proc-img::after{animation:none}}
.proc-img picture{position:absolute;inset:0}
.proc-img{overflow:visible}
.stage{position:relative}
.stage picture{position:absolute;inset:18px}