:root{
  --tableau:#141B24;        /* bleu-noir tableau électrique */
  --tableau-2:#1C2531;
  --papier:#F7F5EF;         /* fond clair chaud */
  --papier-2:#EFEBE1;
  --cuivre:#A6520F;         /* accent cuivre */
  --cuivre-vif:#C56718;
  --cuivre-clair:#E8D9C6;
  --encre:#22282F;
  --encre-2:#5A6069;
  --filet:#D9D2C2;
  --blanc:#FFFFFF;
  --radius:6px;
  --maxw:1120px;
  --f-display:"Barlow Condensed",sans-serif;
  --f-body:"Barlow",sans-serif;
  --f-mono:"IBM Plex Mono",monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
}
body{font-family:var(--f-body);color:var(--encre);background:var(--papier);line-height:1.6;font-size:17px}
img{max-width:100%;display:block}
a{color:inherit}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* ---------- utilitaires typographiques ---------- */
.eyebrow{font-family:var(--f-mono);font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;color:var(--cuivre);display:flex;align-items:center;gap:12px}
.eyebrow::after{content:"";height:1px;width:56px;background:var(--cuivre);opacity:.5}
h1,h2,h3{font-family:var(--f-display);line-height:1.05;text-transform:uppercase;letter-spacing:.01em}
h2{font-size:clamp(2rem,4.5vw,3rem);font-weight:700;margin:.5rem 0 1rem}
.mono{font-family:var(--f-mono)}

/* ---------- header ---------- */
header{position:sticky;top:0;z-index:50;background:rgba(20,27,36,.94);backdrop-filter:blur(8px);border-bottom:1px solid rgba(255,255,255,.08)}
header::before{content:"";position:absolute;inset:0;z-index:-1}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px;gap:16px}
.brand{display:flex;align-items:baseline;gap:10px;text-decoration:none;color:var(--blanc)}
.brand b{font-family:var(--f-display);font-size:1.5rem;font-weight:700;letter-spacing:.04em}
.brand span{font-family:var(--f-mono);font-size:.7rem;letter-spacing:.18em;color:var(--cuivre-vif);text-transform:uppercase}
.nav-links{display:flex;gap:28px;list-style:none}
.nav-links a{color:#C7CDD6;text-decoration:none;font-weight:500;font-size:.95rem;transition:color .2s}
.nav-links a:hover,.nav-links a:focus-visible{color:var(--blanc)}
.btn{display:inline-flex;align-items:center;gap:10px;text-decoration:none;font-weight:600;border-radius:var(--radius);padding:12px 20px;transition:background .2s,transform .15s;cursor:pointer;border:none;font-size:1rem;font-family:var(--f-body)}
.btn:active{transform:translateY(1px)}
.btn-cuivre{background:var(--cuivre);color:var(--blanc)}
.btn-cuivre:hover,.btn-cuivre:focus-visible{background:var(--cuivre-vif)}
.btn-ghost{background:transparent;color:var(--blanc);border:1px solid rgba(255,255,255,.35)}
.btn-ghost:hover,.btn-ghost:focus-visible{border-color:var(--blanc)}
.btn-phone-head{background:var(--cuivre);color:var(--blanc);padding:10px 16px;font-family:var(--f-mono);font-size:.9rem}
.btn-phone-head:hover{background:var(--cuivre-vif)}
.burger{display:none;background:none;border:none;cursor:pointer;padding:8px}
.burger span{display:block;width:24px;height:2px;background:var(--blanc);margin:5px 0;transition:.25s}
a:focus-visible,button:focus-visible{outline:2px solid var(--cuivre-vif);outline-offset:2px}

/* ---------- hero ---------- */
.hero{background:var(--tableau);color:var(--blanc);position:relative;overflow:hidden}
.hero .wrap{position:relative;z-index:2;padding-top:96px;padding-bottom:110px}
.hero-schema{position:absolute;inset:0;z-index:1;opacity:.55;pointer-events:none}
.hero .eyebrow{color:var(--cuivre-vif)}
.hero .eyebrow::after{background:var(--cuivre-vif)}
.hero h1{font-size:clamp(2.6rem,6.5vw,4.6rem);font-weight:700;max-width:820px;margin:.6rem 0 1.2rem}
.hero h1 em{font-style:normal;color:var(--cuivre-vif)}
.hero p.lead{max-width:560px;color:#B9C1CC;font-size:1.1rem;margin-bottom:2rem}
.hero-ctas{display:flex;gap:14px;flex-wrap:wrap;align-items:center}
.hero-phone{font-family:var(--f-mono);font-size:1.05rem}
.hero-badges{display:flex;gap:26px;flex-wrap:wrap;margin-top:56px;padding-top:26px;border-top:1px solid rgba(255,255,255,.12)}
.hero-badges div{font-size:.92rem;color:#B9C1CC}
.hero-badges b{display:block;font-family:var(--f-mono);color:var(--blanc);font-size:1rem;margin-bottom:2px}

/* ---------- lignes de schéma animées ---------- */
.schema-line{stroke:var(--cuivre-vif);stroke-width:1.4;fill:none;stroke-dasharray:6 8;animation:flux 3.2s linear infinite}
.schema-line.slow{animation-duration:5s;opacity:.5}
.schema-node{fill:var(--tableau);stroke:var(--cuivre-vif);stroke-width:1.4}
@keyframes flux{to{stroke-dashoffset:-56}}

/* ---------- sections ---------- */
section{padding:88px 0}
.section-dark{background:var(--tableau);color:var(--blanc)}
.section-alt{background:var(--papier-2)}

/* ---------- expertises : cartes disjoncteurs ---------- */
.grid-exp{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;margin-top:2.2rem}
.card-exp{background:var(--blanc);border:1px solid var(--filet);border-radius:var(--radius);padding:30px 28px 28px;position:relative;transition:border-color .2s,box-shadow .2s}
.card-exp:hover{border-color:var(--cuivre);box-shadow:0 8px 28px rgba(20,27,36,.08)}
.card-exp .circuit{font-family:var(--f-mono);font-size:.75rem;letter-spacing:.12em;color:var(--blanc);background:var(--tableau);display:inline-block;padding:4px 10px;border-radius:3px;margin-bottom:16px}
.card-exp .circuit b{color:var(--cuivre-vif);font-weight:500}
.card-exp h3{font-size:1.45rem;margin-bottom:.6rem}
.card-exp p{color:var(--encre-2);font-size:.98rem}
.card-exp .accroche{font-weight:600;color:var(--encre);font-style:italic;margin-bottom:.5rem}
.card-exp .dispo{margin-top:14px;font-family:var(--f-mono);font-size:.82rem;color:var(--cuivre);border-top:1px dashed var(--filet);padding-top:12px}

/* ---------- bandeau chiffres ---------- */
.bandeau{background:var(--tableau);color:var(--blanc);padding:34px 0;border-top:2px solid var(--cuivre);border-bottom:2px solid var(--cuivre)}
.bandeau .wrap{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
.bandeau div{flex:1;min-width:200px}
.bandeau b{font-family:var(--f-display);font-size:2rem;display:block;line-height:1;color:var(--cuivre-vif)}
.bandeau span{font-size:.92rem;color:#B9C1CC}

/* ---------- témoignage ---------- */
.temoignage{max-width:760px;margin:0 auto;text-align:center}
.temoignage blockquote{font-size:clamp(1.15rem,2.4vw,1.5rem);font-weight:500;line-height:1.5;font-style:italic}
.temoignage blockquote::before{content:"«\00a0"}
.temoignage blockquote::after{content:"\00a0»"}
.temoignage figcaption{margin-top:1.4rem;font-family:var(--f-mono);font-size:.85rem;letter-spacing:.1em;text-transform:uppercase;color:var(--cuivre-vif)}

/* ---------- tarifs ---------- */
.tarifs-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;margin-top:2rem}
.tarifs-steps{list-style:none;display:flex;flex-direction:column;gap:0}
.tarifs-steps li{display:flex;gap:18px;padding:18px 0;border-bottom:1px dashed var(--filet)}
.tarifs-steps li:last-child{border-bottom:none}
.tarifs-steps .num{font-family:var(--f-mono);color:var(--cuivre);font-size:.85rem;padding-top:3px;white-space:nowrap}
.tarifs-steps b{display:block;font-weight:600}
.tarifs-steps p{color:var(--encre-2);font-size:.95rem}
.encart-devis{background:var(--tableau);color:var(--blanc);border-radius:var(--radius);padding:36px 32px;position:relative;overflow:hidden}
.encart-devis h3{font-size:1.6rem;margin-bottom:.6rem}
.encart-devis p{color:#B9C1CC;margin-bottom:1.4rem;font-size:.98rem}
.encart-devis .mono-tag{font-family:var(--f-mono);font-size:.75rem;letter-spacing:.14em;color:var(--cuivre-vif);text-transform:uppercase;display:block;margin-bottom:12px}

/* ---------- zone ---------- */
.zone-list{display:flex;flex-wrap:wrap;gap:10px;margin-top:1.4rem}
.zone-list span{font-family:var(--f-mono);font-size:.85rem;background:var(--blanc);border:1px solid var(--filet);border-radius:100px;padding:7px 16px}
.zone-list span.hq{background:var(--cuivre);color:var(--blanc);border-color:var(--cuivre)}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;margin-top:2rem}
.contact-bloc h3{font-size:1.3rem;margin-bottom:.8rem;color:var(--cuivre-vif)}
.contact-bloc p,.contact-bloc a{color:#C7CDD6;text-decoration:none;font-size:1rem}
.contact-bloc a:hover{color:var(--blanc);text-decoration:underline}
.contact-bloc .big-tel{font-family:var(--f-mono);font-size:clamp(1.6rem,3.5vw,2.2rem);color:var(--blanc);display:inline-block;margin:.4rem 0 .2rem}
.contact-bloc .big-tel:hover{color:var(--cuivre-vif);text-decoration:none}
.horaires{font-family:var(--f-mono);font-size:.9rem;margin-top:1rem;color:#C7CDD6}
.horaires b{color:var(--cuivre-vif);font-weight:500}

/* ---------- footer ---------- */
footer{background:#0E141B;color:#8A929D;padding:28px 0;font-size:.88rem}
footer .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;align-items:center}
footer a{color:#B9C1CC;text-decoration:none}
footer a:hover{color:var(--blanc)}
.fb-link{display:inline-flex;align-items:center;gap:8px}
.fb-link svg{width:18px;height:18px;fill:currentColor}

/* Contenu visible par défaut : le site ne dépend pas du JavaScript pour rester lisible. */
.reveal,.reveal.vu{opacity:1;transform:none;transition:none}

/* ---------- responsive ---------- */
@media(max-width:900px){
  .grid-exp{grid-template-columns:1fr}
  .tarifs-grid,.contact-grid{grid-template-columns:1fr}
}
@media(max-width:760px){
  .nav-links{position:fixed;inset:68px 0 0 0;background:var(--tableau);flex-direction:column;align-items:center;justify-content:center;gap:34px;transform:translateX(100%);transition:transform .3s ease;font-size:1.3rem}
  .nav-links.open{transform:none}
  .burger{display:block}
  .btn-phone-head{display:none}
  .hero .wrap{padding-top:70px;padding-bottom:80px}
  section{padding:64px 0}
}