/* LIGHT TECH CORPORATION — feuille de style
   Palette officielle : bleu nuit #07172E, or #C6A45B, bleu ardoise #172B46, blanc #FFFFFF */

@font-face{font-family:"Caladea";font-weight:700;font-style:normal;font-display:swap;src:url("../assets/fonts/caladea-bold.woff") format("woff")}
@font-face{font-family:"Carlito";font-weight:400;font-style:normal;font-display:swap;src:url("../assets/fonts/carlito-regular.woff") format("woff")}
@font-face{font-family:"Carlito";font-weight:700;font-style:normal;font-display:swap;src:url("../assets/fonts/carlito-bold.woff") format("woff")}

:root{
  --navy:#07172E; --slate:#172B46; --gold:#C6A45B; --gold-dark:#8A6A24; --white:#FFFFFF;
  --soft:#F3F5F9; --ink:#0F2038; --muted:#495A72; --on-dark:#E6EDF7; --on-dark-muted:#B5C2D6;
  --line:rgba(7,23,46,.12); --line-dark:rgba(255,255,255,.14);
  --radius:18px; --shadow:0 10px 30px rgba(7,23,46,.10);
  --head:"Caladea",Cambria,Georgia,"Times New Roman",serif;
  --body:"Carlito",Calibri,"Segoe UI",Roboto,Arial,sans-serif;
  --header-h:76px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 12px);-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--body);font-size:1.125rem;line-height:1.65;color:var(--ink);background:var(--white);overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
h1,h2,h3,h4{font-family:var(--head);font-weight:700;line-height:1.18;margin:0 0 .5em;color:inherit}
p{margin:0 0 1em}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid var(--gold);outline-offset:3px;border-radius:6px}
.section--light :focus-visible,.section--soft :focus-visible,.site-header :focus-visible{outline-color:var(--navy)}
.skip-link{position:absolute;left:12px;top:-60px;background:var(--navy);color:#fff;padding:10px 16px;border-radius:8px;z-index:200;text-decoration:none;font-weight:700}
.skip-link:focus{top:12px}
.container{width:min(1120px,100% - 48px);margin-inline:auto}

/* ---------- En-tête ---------- */
.site-header{position:sticky;top:0;z-index:100;background:#fff;border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:16px;min-height:var(--header-h)}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--navy)}
.brand img{width:60px;height:60px;object-fit:contain}
.brand-name{font-family:var(--head);font-weight:700;font-size:1.05rem;letter-spacing:.04em;line-height:1.1;display:none}
.nav-toggle{margin-left:auto;display:inline-flex;align-items:center;gap:8px;background:transparent;border:1px solid var(--line);border-radius:12px;padding:10px 14px;font:inherit;font-weight:700;color:var(--navy);cursor:pointer}
.nav-toggle .bars{width:20px;height:14px;position:relative;display:inline-block}
.nav-toggle .bars::before,.nav-toggle .bars::after,.nav-toggle .bars i{content:"";position:absolute;left:0;right:0;height:2px;background:currentColor;border-radius:2px;transition:transform .25s,opacity .25s}
.nav-toggle .bars::before{top:0}.nav-toggle .bars i{top:6px}.nav-toggle .bars::after{bottom:0}
.nav-toggle[aria-expanded="true"] .bars::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .bars i{opacity:0}
.nav-toggle[aria-expanded="true"] .bars::after{transform:translateY(-6px) rotate(-45deg)}
.site-nav{position:absolute;left:0;right:0;top:100%;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow);display:none;padding:8px 24px 20px}
.site-nav.is-open{display:block}
.site-nav a{display:block;padding:13px 4px;text-decoration:none;color:var(--navy);font-weight:700;border-bottom:1px solid var(--line)}
.site-nav a:hover{color:var(--gold-dark)}
.header-actions{display:flex;align-items:center;gap:10px}
.lang-switch{display:inline-flex;flex:none;border:1px solid var(--line);border-radius:999px;overflow:hidden;font-weight:700;font-size:.95rem}
.lang-switch a,.lang-switch span{padding:7px 13px;text-decoration:none;color:var(--navy);line-height:1}
.lang-switch [aria-current="true"]{background:var(--navy);color:#fff}
.lang-switch a:hover{background:var(--soft)}
.site-header .header-cta{display:none}

@media (min-width:1200px){
  .brand-name{display:none}
  .nav-toggle{display:none}
  .site-nav{position:static;display:block;box-shadow:none;border:0;padding:0;margin-left:auto}
  .site-nav ul{display:flex;gap:2px}
  .site-nav a{border:0;padding:10px 9px;font-size:.98rem;position:relative;white-space:nowrap}
  .site-nav a::after{content:"";position:absolute;left:10px;right:10px;bottom:4px;height:2px;background:var(--gold);transform:scaleX(0);transition:transform .25s;transform-origin:left}
  .site-nav a:hover::after{transform:scaleX(1)}
  .site-header .header-cta{display:inline-flex}
}
@media (max-width:1199px){ .header-actions{margin-left:auto} .nav-toggle{margin-left:0} }
@media (min-width:1420px){ .brand-name{display:block} }

/* ---------- Boutons ---------- */
.btn{white-space:nowrap;display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:12px 24px;border-radius:999px;font:inherit;font-weight:700;text-decoration:none;border:2px solid transparent;cursor:pointer;transition:transform .2s,background .2s,color .2s,border-color .2s,box-shadow .2s}
.btn:hover{transform:translateY(-2px)}
.btn--gold{background:var(--gold);color:var(--navy)}
.btn--gold:hover{background:#D5B772;box-shadow:0 8px 22px rgba(198,164,91,.35)}
.btn--navy{background:var(--navy);color:#fff}
.btn--navy:hover{background:var(--slate)}
.btn--ghost{border-color:rgba(255,255,255,.55);color:#fff;background:transparent}
.btn--ghost:hover{border-color:var(--gold);color:var(--gold)}
.btn--outline{border-color:var(--navy);color:var(--navy);background:transparent}
.btn--outline:hover{background:var(--navy);color:#fff}
.btn[disabled]{opacity:.6;cursor:progress;transform:none}

/* ---------- Héros ---------- */
.hero{position:relative;background:var(--navy);color:#fff;overflow:hidden;isolation:isolate}
.hero::before{content:"";position:absolute;inset:-6%;background:url("../assets/img/hero-bg.svg") center/cover no-repeat;z-index:-2;animation:drift 38s ease-in-out infinite alternate}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,23,46,.35) 0%,rgba(7,23,46,.15) 40%,rgba(7,23,46,.85) 100%);z-index:-1}
@keyframes drift{from{transform:translate3d(-1.2%,0,0) scale(1.02)}to{transform:translate3d(1.2%,-1%,0) scale(1.06)}}
.hero-inner{padding:clamp(72px,14vh,150px) 0 clamp(80px,15vh,160px);max-width:820px}
.hero h1{font-size:clamp(2.35rem,8vw,4.7rem);letter-spacing:.03em;margin-bottom:.25em;text-wrap:balance}
.hero .slogan{font-family:var(--head);font-weight:700;color:var(--gold);font-size:clamp(1.25rem,3.4vw,1.95rem);margin-bottom:1.1em}
.hero .intro{font-size:clamp(1.1rem,2.2vw,1.3rem);color:#DCE5F2;max-width:640px;margin-bottom:2em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- Sections ---------- */
.section{padding:clamp(64px,9vw,112px) 0}
.section--light{background:#fff;color:var(--ink)}
.section--soft{background:var(--soft);color:var(--ink)}
.section--dark{background:var(--navy);color:var(--on-dark)}
.section--slate{background:var(--slate);color:var(--on-dark)}
.eyebrow{display:inline-block;font-weight:700;font-size:.92rem;letter-spacing:.16em;text-transform:uppercase;color:var(--gold-dark);margin-bottom:.9em}
.section--dark .eyebrow,.section--slate .eyebrow{color:var(--gold)}
.section h2{font-size:clamp(1.9rem,4.6vw,3rem);text-wrap:balance}
.section-head{max-width:760px;margin-bottom:clamp(32px,5vw,56px)}
.lead{font-size:1.2rem;color:var(--muted)}
.section--dark .lead,.section--slate .lead{color:var(--on-dark-muted)}
.rule{width:64px;height:3px;background:var(--gold);border:0;margin:0 0 1.4em;border-radius:2px}

/* À propos */
.about-grid{display:grid;gap:clamp(28px,5vw,64px)}
@media (min-width:900px){.about-grid{grid-template-columns:1.15fr .85fr;align-items:start}}
.about-text p{color:var(--muted)}
.vm-stack{display:grid;gap:18px}
.vm-card{background:var(--navy);color:var(--on-dark);border-radius:var(--radius);padding:28px;border-left:4px solid var(--gold)}
.vm-card h3{color:var(--gold);font-size:1.3rem;margin-bottom:.4em}
.vm-card p{margin:0;color:var(--on-dark)}
.values{margin-top:clamp(40px,6vw,72px)}
.values h3{font-size:1.5rem;margin-bottom:1em}
.values-grid{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}
.value{border:1px solid var(--line);border-radius:14px;padding:18px 20px;background:#fff}
.value strong{display:block;font-family:var(--head);color:var(--navy);font-size:1.1rem}
.value span{color:var(--muted);font-size:1rem}

/* Cartes génériques */
.cards{display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(min(100%,290px),1fr))}
.card{position:relative;border-radius:var(--radius);padding:28px;border:1px solid var(--line);background:#fff;transition:transform .25s,box-shadow .25s,border-color .25s;min-width:0}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:rgba(198,164,91,.7)}
.card h3{font-size:1.25rem;margin-bottom:.4em;color:var(--navy)}
.card p{margin:0;color:var(--muted);font-size:1.02rem}
.section--slate .card,.section--dark .card{background:rgba(255,255,255,.05);border-color:var(--line-dark)}
.section--slate .card h3,.section--dark .card h3{color:#fff}
.section--slate .card p,.section--dark .card p{color:var(--on-dark-muted)}
.icon{width:46px;height:46px;border-radius:12px;display:grid;place-items:center;margin-bottom:16px;background:rgba(198,164,91,.14);color:var(--gold)}
.icon svg{width:26px;height:26px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.section--light .icon,.section--soft .icon{color:var(--gold-dark);background:rgba(198,164,91,.18)}
.note{margin-top:28px;font-size:1rem;color:var(--muted);max-width:760px}
.section--slate .note,.section--dark .note{color:var(--on-dark-muted)}
.cta-row{margin-top:36px}

/* Produits */
.products-grid{display:grid;gap:24px;grid-template-columns:repeat(auto-fit,minmax(min(100%,290px),1fr))}
.product{display:flex;flex-direction:column;background:rgba(255,255,255,.05);border:1px solid var(--line-dark);border-radius:var(--radius);overflow:hidden;transition:transform .25s,border-color .25s,box-shadow .25s}
.product:hover{transform:translateY(-4px);border-color:rgba(198,164,91,.8);box-shadow:0 18px 40px rgba(0,0,0,.35)}
.product-cover{background:linear-gradient(180deg,#0B1F3A,#07172E);padding:24px 24px 8px;display:grid;place-items:center}
.product-cover img{width:min(210px,70%);aspect-ratio:5/8;object-fit:cover;border-radius:6px;box-shadow:0 16px 36px rgba(0,0,0,.5)}
.product-body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:10px;flex:1}
.badge{align-self:flex-start;font-size:.82rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--navy);background:var(--gold);border-radius:999px;padding:4px 12px}
.product h3{font-size:1.35rem;margin:4px 0 0;color:#fff}
.product .subtitle{font-size:1rem;color:var(--gold);margin:0}
.product .desc{font-size:1.02rem;color:var(--on-dark-muted);margin:0}
.product .btn{margin-top:auto;align-self:flex-start}
.store-line{margin-top:34px;display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;border-top:1px solid var(--line-dark);padding-top:26px}
.store-line p{margin:0;color:var(--on-dark-muted);max-width:640px;font-size:1rem}

/* Annonces (masquée tant qu'il n'y en a pas) */
.news-list{display:grid;gap:16px}
.news-item{border:1px solid var(--line);border-radius:14px;padding:20px 24px;background:#fff}
.news-item time{font-size:.9rem;color:var(--gold-dark);font-weight:700;letter-spacing:.08em;text-transform:uppercase}
.news-item h3{margin:.3em 0 .3em;font-size:1.3rem}

/* Création, recherche, développement */
.crd-grid{display:grid;gap:clamp(28px,5vw,64px)}
@media (min-width:900px){.crd-grid{grid-template-columns:1fr 1fr;align-items:center}}
.quote{font-family:var(--head);font-size:clamp(1.3rem,2.6vw,1.75rem);line-height:1.4;color:var(--navy);border-left:4px solid var(--gold);padding-left:22px;margin:0 0 1.2em}
.pillars{display:grid;gap:14px}
.pillar{display:flex;gap:16px;align-items:flex-start;padding:20px;border-radius:14px;border:1px solid var(--line);background:#fff}
.pillar .num{font-family:var(--head);font-size:1.6rem;color:var(--gold-dark);line-height:1;min-width:34px}
.pillar h3{font-size:1.2rem;margin:0 0 .15em}
.pillar p{margin:0;color:var(--muted);font-size:1.02rem}

/* Collaboration */
.collab{text-align:center;max-width:820px;margin-inline:auto}
.collab h2{color:#fff}
.collab p{color:var(--on-dark-muted);font-size:1.2rem}
.collab .rule{margin-inline:auto}

/* Contact */
.contact-grid{display:grid;gap:clamp(28px,5vw,64px)}
@media (min-width:900px){.contact-grid{grid-template-columns:.9fr 1.1fr}}
.contact-list{display:grid;gap:14px;margin:24px 0}
.contact-item{display:flex;align-items:center;gap:14px;padding:16px 18px;border:1px solid var(--line);border-radius:14px;background:#fff;text-decoration:none;color:var(--navy);min-width:0;transition:border-color .2s,box-shadow .2s}
.contact-item:hover{border-color:var(--gold);box-shadow:var(--shadow)}
.contact-item .icon{margin:0;flex:none}
.contact-item span.t{display:block;min-width:0;overflow-wrap:anywhere}
.contact-item small{display:block;color:var(--muted);font-size:.9rem}
.platforms{display:flex;gap:12px;flex-wrap:wrap;margin-top:10px}
.platform{display:inline-flex;align-items:center;gap:10px;padding:10px 16px;border:1px solid var(--line);border-radius:999px;text-decoration:none;color:var(--navy);font-weight:700;background:#fff;transition:border-color .2s,transform .2s}
.platform:hover{border-color:var(--gold);transform:translateY(-2px)}
.platform svg{width:20px;height:20px;fill:currentColor}
form.contact-form{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:clamp(22px,4vw,36px);box-shadow:var(--shadow)}
.field{margin-bottom:18px}
.field label{display:block;font-weight:700;margin-bottom:6px;color:var(--navy)}
.field input,.field textarea{width:100%;font:inherit;color:var(--ink);background:#fff;border:1.5px solid #B9C4D4;border-radius:12px;padding:13px 14px;min-height:50px}
.field textarea{min-height:150px;resize:vertical}
.field input:focus,.field textarea:focus{outline:3px solid rgba(198,164,91,.55);border-color:var(--navy)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form-note{font-size:.95rem;color:var(--muted);margin:14px 0 0}
.form-status{margin-top:16px;padding:14px 16px;border-radius:12px;font-weight:700;display:none}
.form-status.is-ok{display:block;background:#E8F4EC;color:#14532D;border:1px solid #9AD2AE}
.form-status.is-error{display:block;background:#FDECEC;color:#7A1F1F;border:1px solid #E6A8A8}
.form-status a{color:inherit}

/* Pied de page */
.site-footer{background:var(--navy);color:var(--on-dark-muted);padding:56px 0 32px}
.footer-grid{display:grid;gap:36px}
@media (min-width:860px){.footer-grid{grid-template-columns:1.3fr 1fr 1fr 1fr}}
.footer-brand img{width:150px;height:150px;border-radius:18px;background:#fff;padding:8px;margin-bottom:16px}
.footer-brand strong{display:block;font-family:var(--head);color:#fff;font-size:1.2rem;letter-spacing:.04em}
.footer-brand .slogan{color:var(--gold);font-family:var(--head);font-weight:700;margin:.2em 0 0}
.site-footer h3{font-size:1rem;letter-spacing:.14em;text-transform:uppercase;color:#fff;font-family:var(--body);margin-bottom:1em}
.site-footer li{margin-bottom:.55em}
.site-footer a{text-decoration:none;color:var(--on-dark-muted);overflow-wrap:anywhere}
.site-footer a:hover{color:var(--gold)}
.footer-bottom{margin-top:40px;padding-top:22px;border-top:1px solid var(--line-dark);display:flex;flex-wrap:wrap;gap:10px 28px;justify-content:space-between;font-size:.95rem}
.footer-bottom p{margin:0}

/* Animations discrètes */
.js .reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}
.js .reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .hero::before{animation:none}
  .js .reveal{opacity:1;transform:none;transition:none}
  *{transition-duration:.01ms!important;animation-duration:.01ms!important}
}
@media (max-width:420px){
  .container{width:min(1120px,100% - 36px)}
  .brand img{width:52px;height:52px}
  .btn{width:100%}
  .hero-actions .btn{width:100%}
  .lang-switch a,.lang-switch span{padding:7px 11px}
}
@media print{.site-header,.hero::before,.hero::after{display:none}.js .reveal{opacity:1;transform:none}}

.min-vh{min-height:100vh;display:grid;align-items:center}