/* ============================================================
   safe-ti.net — Direction B « Laboratoire » (clair / B2B)
   Palette : blanc + gris-bleu froid, bleu profond, rouge marque.
   Display : Space Grotesk · Corps : Inter (couvre le cyrillique/uk)
   ============================================================ */
:root{
  --bg:#ffffff;
  --paper:#f3f6fb;      /* gris-bleu froid, teinté vers l'accent */
  --ink:#0e1621;
  --mut:#59657a;
  --blue:#12386e;       /* bleu profond, confiance */
  --blue2:#2f6bff;      /* bleu vif, liens/accents interactifs */
  --red:#cf0404;        /* rouge marque, très parcimonieux */
  --line:#e5eaf1;
  --card:#ffffff;
  --ok:#0f7a4d;
  --maxw:1180px;
  --nav-h:70px;
  --r:12px;
  --disp:"Space Grotesk", system-ui, "Segoe UI", sans-serif;
  --sans:"Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono:ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace;
  --shadow:0 18px 44px -30px rgba(18,56,110,.45);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--sans);line-height:1.55;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:var(--disp);letter-spacing:-.015em;line-height:1.1;text-wrap:balance}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.skip{position:absolute;left:-999px;top:8px;background:var(--blue);color:#fff;padding:8px 14px;border-radius:8px;z-index:100}
.skip:focus{left:8px}
:focus-visible{outline:2px solid var(--blue2);outline-offset:3px}

/* ---------- Wordmark ---------- */
.brand{font-family:var(--disp);font-weight:800;font-size:23px;letter-spacing:-.045em;color:var(--ink)}
.brand .hy{color:var(--blue2)}
.brand-lg{font-size:34px}

/* ---------- Boutons ---------- */
.btn{display:inline-flex;align-items:center;gap:9px;border-radius:9px;padding:12px 20px;
  font-weight:700;font-size:14.5px;cursor:pointer;border:1px solid transparent;
  transition:transform .15s ease, background .15s ease, box-shadow .15s ease;font-family:var(--sans)}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{box-shadow:var(--shadow)}
.btn-ghost{background:#fff;color:var(--blue);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--blue2)}

/* ---------- Nav ---------- */
.site-nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);
  backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:var(--nav-h);gap:20px}
.nav-links{display:flex;align-items:center;gap:24px}
.nav-links>a{color:var(--mut);font-size:14.5px;font-weight:500}
.nav-links>a:hover{color:var(--blue)}
.nav-quote{position:relative}
.cart-badge{background:var(--red);color:#fff;border-radius:999px;font-size:11px;font-weight:700;
  min-width:19px;height:19px;display:inline-flex;align-items:center;justify-content:center;padding:0 5px}
.burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.burger span{width:24px;height:2px;background:var(--ink);border-radius:2px;transition:.2s}

/* Sélecteur langue */
.lang-switch{position:relative}
.lang-btn{background:#fff;border:1px solid var(--line);border-radius:8px;padding:8px 11px;
  font-size:13px;font-weight:600;cursor:pointer;color:var(--ink);display:inline-flex;gap:6px;align-items:center}
.lang-btn .caret{font-size:10px;color:var(--mut)}
.lang-menu{position:absolute;right:0;top:calc(100% + 8px);background:#fff;border:1px solid var(--line);
  border-radius:10px;box-shadow:var(--shadow);padding:6px;min-width:170px;list-style:none;margin:0;
  opacity:0;visibility:hidden;transform:translateY(-6px);transition:.16s}
.lang-switch.open .lang-menu{opacity:1;visibility:visible;transform:none}
.lang-menu a{display:block;padding:9px 12px;border-radius:7px;font-size:13.5px;color:var(--ink)}
.lang-menu a:hover{background:var(--paper)}
.lang-menu a[aria-current="true"]{color:var(--blue);font-weight:700}

/* ---------- Hero ---------- */
.hero{padding:clamp(40px,6vw,72px) 0}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center}
.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--blue2)}
.hero-wm{font-family:var(--disp);font-weight:700;font-size:clamp(44px,7vw,78px);letter-spacing:-.045em;
  line-height:.9;margin:14px 0 10px}
.hero-wm .hy{color:var(--blue2)}
.hero-slogan{color:var(--red);font-weight:600;font-size:16px;margin:0 0 18px}
.hero-lede{color:var(--mut);font-size:17px;max-width:52ch;margin:0 0 26px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap}
.hero-fig{background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:24px;display:flex;flex-direction:column;gap:2px}
.hero-fig .frow{display:flex;align-items:center;gap:14px;padding:14px 4px;font-size:14px;color:var(--mut)}
.hero-fig .frow strong{color:var(--ink);font-weight:600}
.hero-fig .frow+.frow{border-top:1px solid var(--line)}
.hero-fig .gi{width:38px;height:38px;color:var(--blue);flex:none}

/* ---------- Sections ---------- */
.section{padding:clamp(38px,5vw,64px) 0}
.section.paper{background:var(--paper);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{margin-bottom:26px}
.section-head h2{font-size:clamp(24px,3.2vw,32px);margin:0 0 6px}
.section-head p{color:var(--mut);margin:0;font-size:15px}

/* ---------- Rayons ---------- */
.uni-row{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.uni{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:24px;
  display:flex;flex-direction:column;gap:12px;transition:transform .16s ease, box-shadow .16s ease}
.uni:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.uni .gi{width:44px;height:44px;color:var(--blue)}
.uni .cnt{font-family:var(--mono);font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--blue2)}
.uni h3{margin:0;font-size:18px}
.uni p{margin:0;color:var(--mut);font-size:14px}

/* ---------- Grille catalogue ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;
  display:flex;flex-direction:column;transition:transform .16s ease, box-shadow .16s ease}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.card .thumb{aspect-ratio:16/11;background:var(--paper);border-bottom:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--blue)}
.card .thumb img{width:100%;height:100%;object-fit:contain;padding:16px}
.card .thumb .gi{width:46%;height:46%;opacity:.85}
.card .cbody{padding:16px;display:flex;flex-direction:column;gap:8px;flex:1}
.card .k{font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--blue2)}
.card h4{margin:0;font-size:16px}
.card .lead{color:var(--mut);font-size:13.5px;margin:0;flex:1}
.card .cfoot{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:6px}
.pill{font-size:11.5px;font-weight:700;border-radius:999px;padding:4px 11px;background:var(--blue);color:#fff}
.card .add{background:none;border:1px solid var(--line);border-radius:8px;padding:7px 12px;font-size:13px;
  font-weight:600;color:var(--blue);cursor:pointer;font-family:var(--sans)}
.card .add:hover{border-color:var(--blue2);background:var(--paper)}

/* ---------- Footer ---------- */
.site-foot{background:var(--paper);border-top:1px solid var(--line);margin-top:20px}
.foot-inner{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap;padding:44px 24px 24px}
.foot-slogan{color:var(--red);font-weight:600;font-size:14px;margin:10px 0 0}
.foot-cols{display:flex;gap:56px;flex-wrap:wrap}
.foot-cols h4{font-size:13px;text-transform:uppercase;letter-spacing:.08em;color:var(--mut);margin:0 0 12px}
.foot-cols a{display:block;color:var(--ink);font-size:14px;padding:5px 0}
.foot-cols a:hover{color:var(--blue)}
.foot-legal{border-top:1px solid var(--line);padding:16px 24px;color:var(--mut);font-size:13px}

/* ---------- Toast ---------- */
.toast{position:fixed;left:50%;bottom:26px;transform:translateX(-50%) translateY(20px);
  background:var(--ink);color:#fff;padding:12px 20px;border-radius:10px;font-size:14px;font-weight:600;
  box-shadow:var(--shadow);opacity:0;transition:.22s;z-index:80}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* ---------- Responsive ---------- */
@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr}
  .uni-row{grid-template-columns:1fr}
}
@media (max-width:760px){
  .burger{display:flex}
  .nav-links{position:fixed;inset:var(--nav-h) 0 auto 0;background:#fff;border-bottom:1px solid var(--line);
    flex-direction:column;align-items:stretch;gap:0;padding:8px 24px 20px;
    transform:translateY(-12px);opacity:0;visibility:hidden;transition:.18s}
  .nav-links.open{transform:none;opacity:1;visibility:visible}
  .nav-links>a{padding:13px 0;border-bottom:1px solid var(--line)}
  .lang-switch{padding:10px 0}
  .nav-quote{margin-top:12px;justify-content:center}
}
/* ---------- Pages internes (produit / devis / contact) ---------- */
.wrap.narrow{max-width:820px}
.crumb{display:inline-block;color:var(--blue2);font-size:14px;font-weight:600;margin-bottom:22px}
.crumb:hover{text-decoration:underline}
.lead-intro{color:var(--mut);font-size:17px;max-width:60ch;margin:0 0 24px}

/* Produit */
.product{display:grid;grid-template-columns:1fr 1.1fr;gap:38px;align-items:start;margin-bottom:14px}
.p-thumb{background:var(--paper);border:1px solid var(--line);border-radius:16px;aspect-ratio:4/3;
  display:flex;align-items:center;justify-content:center;color:var(--blue)}
.p-thumb img{width:100%;height:100%;object-fit:contain;padding:24px}
.p-thumb .gi{width:40%;height:40%;opacity:.85}
.p-info h1{font-size:clamp(28px,4vw,40px);margin:6px 0 6px}
.p-cat{color:var(--mut);margin:0 0 18px}
.p-short p{margin:0 0 12px}
.tag{display:inline-block;background:var(--paper);border:1px solid var(--line);color:var(--blue);
  font-weight:700;font-size:13px;border-radius:999px;padding:6px 14px;margin:6px 0 18px}
.banner{background:#fff7e6;border:1px solid #f2d999;color:#7a5a00;border-radius:9px;
  padding:10px 14px;font-size:13.5px;margin:0 0 16px}
.banner.err{background:#fdecec;border-color:#f3b4b4;color:#8c1111}
.qty-row{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-bottom:14px}
.stepper{display:inline-flex;align-items:center;border:1px solid var(--line);border-radius:9px;overflow:hidden;background:#fff}
.stepper button{width:38px;height:42px;border:0;background:#fff;font-size:18px;cursor:pointer;color:var(--blue)}
.stepper button:hover{background:var(--paper)}
.stepper .st-input{width:52px;height:42px;border:0;border-left:1px solid var(--line);border-right:1px solid var(--line);
  text-align:center;font-size:15px;font-family:var(--sans);-moz-appearance:textfield}
.stepper .st-input::-webkit-outer-spin-button,.stepper .st-input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}
.p-block{margin-top:40px}
.p-block h2{font-size:22px;margin:0 0 16px}
.spec-table{width:100%;border-collapse:collapse;font-size:14.5px}
.spec-table th,.spec-table td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:top}
.spec-table th{color:var(--mut);font-weight:600;width:42%;font-family:var(--sans)}
.spec-table td{font-variant-numeric:tabular-nums}
.doc-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:8px}
.doc-list a{color:var(--blue2);font-weight:600}
.doc-list a:hover{text-decoration:underline}

/* Devis / formulaires */
.quote-form{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px;margin-top:8px}
.fs-head{font-size:19px;margin:22px 0 14px}
.fgrid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}
.field span{font-size:13.5px;font-weight:600;color:var(--ink)}
.field span em{color:var(--mut);font-weight:400;font-style:normal;font-size:12.5px}
.field input,.field select,.field textarea{border:1px solid var(--line);border-radius:9px;padding:11px 13px;
  font-size:15px;font-family:var(--sans);color:var(--ink);background:#fff;width:100%}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--blue2);
  box-shadow:0 0 0 3px rgba(47,107,255,.14)}
.btn-lg{padding:14px 26px;font-size:15.5px;margin-top:6px}

.q-items{list-style:none;padding:0;margin:0 0 8px}
.q-item{display:flex;align-items:center;gap:14px;padding:14px 0;border-bottom:1px solid var(--line)}
.q-item .qn{flex:1;font-weight:600;font-size:15px}
.q-item .qc{display:inline-flex;align-items:center;border:1px solid var(--line);border-radius:8px;overflow:hidden}
.q-item .qc button{width:34px;height:38px;border:0;background:#fff;cursor:pointer;color:var(--blue);font-size:17px}
.q-item .qc .st-input{width:46px;height:38px;border:0;border-left:1px solid var(--line);border-right:1px solid var(--line);
  text-align:center;font-family:var(--sans);-moz-appearance:textfield}
.q-item .q-rm{background:none;border:0;color:var(--red);font-size:13px;font-weight:600;cursor:pointer}
.q-item .q-rm:hover{text-decoration:underline}

.quote-empty{background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:40px 26px;text-align:center}
.quote-empty p{color:var(--mut);margin:0 0 18px;font-size:16px}

.success-card{background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:40px 30px;text-align:center}
.success-card .gi{width:52px;height:52px;color:var(--blue);margin:0 auto 8px}
.success-card h2{font-size:24px;margin:0 0 10px}
.success-card p{color:var(--mut);margin:0 0 22px}
.success-card strong{color:var(--ink);font-variant-numeric:tabular-nums}

@media (max-width:760px){
  .product{grid-template-columns:1fr;gap:22px}
  .fgrid{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;scroll-behavior:auto}
}