/* =====================================================================
   Martin Électricité — Maquette A (prospection) — Balise Web Vendée
   Couleurs et polices : uniquement dans :root ci-dessous.
   Palette « graphite et cuivre » : le cuivre des câbles, le gris du
   tableau électrique. Provisoire, à ajuster au logo / au véhicule.
   ===================================================================== */
:root {
  --encre: #1E2428;        /* graphite : textes, fonds sombres */
  --encre-2: #263036;      /* graphite plus clair : cartes sur fond sombre */
  --cuivre: #A4521C;       /* action principale (texte blanc : contraste 5,5:1) */
  --cuivre-fonce: #8A4316;
  --cuivre-clair: #E39A5E; /* détails sur fond sombre (contraste 6,7:1) */
  --creme: #F7F3EC;        /* fond de page */
  --blanc: #FFFFFF;
  --doux: #5E676C;         /* textes secondaires (contraste 5,2:1) */
  --trait: #E4DDD2;
  --rayon: 12px;
  --police: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { margin: 0; font-family: var(--police); font-size: 1.0625rem; line-height: 1.6; color: var(--encre); background: var(--creme); overflow-x: hidden; }
img, svg { display: block; max-width: 100%; }
h1, h2, h3 { line-height: 1.15; margin: 0 0 .5em; letter-spacing: -.02em; }
h1 { font-size: clamp(2.1rem, 7.5vw, 3.6rem); font-weight: 800; }
h2 { font-size: clamp(1.6rem, 5vw, 2.4rem); font-weight: 800; }
h3 { font-size: 1.15rem; font-weight: 700; letter-spacing: -.01em; }
p { margin: 0 0 1em; }
a { color: var(--cuivre); }
:focus-visible { outline: 3px solid var(--cuivre-clair); outline-offset: 3px; border-radius: 4px; }
.conteneur { width: 100%; max-width: 1140px; margin: 0 auto; padding: 0 20px; }
.cache { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* Lien d'évitement */
.evitement { position: absolute; left: 12px; top: -60px; z-index: 100; background: var(--blanc); color: var(--encre); padding: 10px 16px; border-radius: 8px; font-weight: 700; }
.evitement:focus { top: 12px; }

/* Info encore à fournir : discret, mais lisible */
.a-fournir { color: var(--doux); font-style: italic; font-weight: 400; }
.sombre .a-fournir { color: #AEB8BD; }

/* Mention maquette : une ligne discrète */
.mention-maquette { background: var(--encre); color: #AEB8BD; font-size: .8rem; letter-spacing: .02em; text-align: center; padding: 6px 12px; border-bottom: 1px solid #343E44; }

/* ---------- Boutons ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 52px; padding: 12px 24px; border-radius: 10px; border: 2px solid transparent; font: inherit; font-weight: 700; font-size: 1.05rem; line-height: 1.2; text-decoration: none; cursor: pointer; }
.btn svg { width: 20px; height: 20px; flex: none; }
.btn-principal { background: var(--cuivre); color: var(--blanc); }
.btn-principal:hover { background: var(--cuivre-fonce); }
.btn-secondaire { border-color: currentColor; color: var(--encre); background: transparent; }
.btn-secondaire:hover { background: rgba(30,36,40,.06); }
.sombre .btn-secondaire { color: var(--blanc); }
.sombre .btn-secondaire:hover { background: rgba(255,255,255,.08); }
.btn-petit { min-height: 44px; padding: 8px 18px; font-size: .98rem; }

/* ---------- En-tête ---------- */
.entete { position: sticky; top: 0; z-index: 30; background: rgba(247,243,236,.96); backdrop-filter: blur(6px); border-bottom: 1px solid var(--trait); }
.entete .conteneur { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 68px; }
/* Nom écrit en texte simple : le vrai logo le remplacera */
.marque { color: var(--encre); text-decoration: none; line-height: 1.1; }
.marque b { display: block; font-size: 1.2rem; font-weight: 800; letter-spacing: -.02em; }
.marque span { font-size: .8rem; color: var(--doux); font-weight: 600; }
.nav ul { display: flex; gap: 28px; list-style: none; margin: 0; padding: 0; }
.nav a { color: var(--encre); text-decoration: none; font-weight: 600; }
.nav a:hover { color: var(--cuivre); }
.actions-entete { display: flex; align-items: center; gap: 10px; }
.bouton-menu { display: none; width: 48px; height: 48px; border: 1px solid var(--trait); border-radius: 10px; background: var(--blanc); color: var(--encre); cursor: pointer; place-items: center; }
.bouton-menu svg { width: 24px; height: 24px; }

/* ---------- Hero ---------- */
.hero { position: relative; overflow: hidden; background: var(--encre); color: var(--blanc); padding: 64px 0 72px; }
.hero::after { /* fil de cuivre décoratif */
  content: ""; position: absolute; right: -120px; top: -120px; width: 520px; height: 520px; border-radius: 50%;
  border: 2px solid rgba(227,154,94,.25); box-shadow: 0 0 0 40px rgba(227,154,94,.05), 0 0 0 80px rgba(227,154,94,.03);
  pointer-events: none;
}
.hero-grille { position: relative; z-index: 1; display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; }
.surtitre { display: inline-flex; align-items: center; gap: 8px; color: var(--cuivre-clair); font-weight: 700; font-size: .92rem; margin-bottom: 16px; }
.surtitre::before { content: ""; width: 28px; height: 2px; background: var(--cuivre-clair); }
.hero h1 span { color: var(--cuivre-clair); }
.hero-texte { font-size: 1.2rem; color: #D5DCDF; max-width: 560px; }
.hero-boutons { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

/* Choix rapide : « De quoi avez-vous besoin ? » */
.choix { background: var(--encre-2); border: 1px solid #36424A; border-radius: 16px; padding: 24px; }
.choix h2 { font-size: 1.15rem; color: var(--blanc); margin-bottom: 4px; letter-spacing: -.01em; }
.choix p { color: #AEB8BD; font-size: .95rem; margin-bottom: 16px; }
.choix ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.choix a { display: flex; align-items: center; gap: 14px; min-height: 60px; padding: 12px 16px; border-radius: 10px; background: rgba(255,255,255,.04); border: 1px solid #36424A; color: var(--blanc); text-decoration: none; font-weight: 700; }
.choix a:hover { border-color: var(--cuivre-clair); background: rgba(227,154,94,.08); }
.choix a small { display: block; font-weight: 400; color: #AEB8BD; font-size: .88rem; }
.choix .ico { width: 40px; height: 40px; border-radius: 10px; background: rgba(227,154,94,.14); color: var(--cuivre-clair); display: grid; place-items: center; flex: none; }
.choix .ico svg { width: 22px; height: 22px; }
.choix .fleche { margin-left: auto; color: var(--cuivre-clair); }

/* ---------- Sections ---------- */
section { padding: 76px 0; }
section[id] { scroll-margin-top: 76px; }
.blanc { background: var(--blanc); }
.intro { max-width: 680px; margin-bottom: 36px; }
.intro p { color: var(--doux); font-size: 1.1rem; margin: 0; }
.repere { display: block; font-size: .85rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--cuivre); margin-bottom: 10px; }
.sombre .repere { color: var(--cuivre-clair); }

/* Services */
.services { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.service { display: grid; grid-template-columns: auto 1fr; gap: 18px; align-items: start; padding: 26px; border: 1px solid var(--trait); border-radius: var(--rayon); background: var(--creme); }
.service .ico { width: 52px; height: 52px; border-radius: 12px; background: var(--encre); color: var(--cuivre-clair); display: grid; place-items: center; }
.service .ico svg { width: 26px; height: 26px; }
.service p { color: var(--doux); margin-bottom: 12px; }
.service ul { margin: 0 0 14px; padding-left: 18px; color: var(--encre); }
.service li { margin-bottom: 2px; }
.service a { font-weight: 700; text-decoration: none; }
.service a:hover { text-decoration: underline; }

/* Bloc utile : « Votre installation a-t-elle besoin d'une remise à niveau ? » */
.signes { display: grid; grid-template-columns: .9fr 1.1fr; gap: 48px; align-items: start; }
.liste-signes { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.liste-signes li { display: flex; gap: 14px; align-items: flex-start; background: var(--blanc); border: 1px solid var(--trait); border-radius: var(--rayon); padding: 16px 18px; }
.liste-signes svg { width: 22px; height: 22px; flex: none; color: var(--cuivre); margin-top: 2px; }
.encadre { margin-top: 20px; padding: 18px 20px; border-left: 4px solid var(--cuivre); background: var(--blanc); border-radius: 0 var(--rayon) var(--rayon) 0; }
.encadre p { margin: 0; }

/* Étapes */
.etapes { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; counter-reset: e; }
.etapes li { position: relative; padding: 26px 24px 24px; border-top: 3px solid var(--cuivre); background: var(--creme); border-radius: 0 0 var(--rayon) var(--rayon); }
.etapes li::before { counter-increment: e; content: "0" counter(e); display: block; font-size: 1.9rem; font-weight: 800; color: var(--cuivre); line-height: 1; margin-bottom: 12px; }
.etapes p { margin: 0; color: var(--doux); }

/* Zone */
.zone { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.communes { list-style: none; margin: 18px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 10px; }
.communes li { padding: 8px 16px; border-radius: 999px; border: 1px solid var(--trait); background: var(--blanc); font-weight: 600; }
.communes li.centre { background: var(--encre); border-color: var(--encre); color: var(--blanc); }
.cible { position: relative; width: 100%; max-width: 380px; aspect-ratio: 1; margin: 0 auto; }
.cible i { position: absolute; border-radius: 50%; border: 1.5px dashed #C9BBA8; }
.cible i:nth-child(1) { inset: 0; }
.cible i:nth-child(2) { inset: 18%; border-style: solid; border-color: rgba(164,82,28,.35); }
.cible i:nth-child(3) { inset: 38%; border: 0; background: var(--cuivre); opacity: .12; }
.cible b { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); text-align: center; font-weight: 800; line-height: 1.2; }
.cible b svg { width: 32px; height: 32px; margin: 0 auto 6px; color: var(--cuivre); }

/* Contact */
.contact { background: var(--encre); color: var(--blanc); }
.contact .intro p { color: #C3CCD0; }
.contact-grille { display: grid; grid-template-columns: .8fr 1.2fr; gap: 28px; align-items: start; }
.coordonnees { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.coordonnees li { display: flex; gap: 14px; align-items: flex-start; padding: 18px; border-radius: var(--rayon); background: var(--encre-2); border: 1px solid #36424A; }
.coordonnees .ico { width: 42px; height: 42px; border-radius: 10px; background: rgba(227,154,94,.14); color: var(--cuivre-clair); display: grid; place-items: center; flex: none; }
.coordonnees .ico svg { width: 22px; height: 22px; }
.coordonnees small { display: block; color: #AEB8BD; font-size: .85rem; }
.coordonnees strong { font-size: 1.05rem; }

.formulaire { background: var(--blanc); color: var(--encre); border-radius: 16px; padding: 28px; scroll-margin-top: 84px; }
.formulaire h3 { font-size: 1.3rem; margin-bottom: 4px; }
.formulaire .aide { color: var(--doux); font-size: .95rem; margin-bottom: 20px; }
.champs { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.champ { display: grid; gap: 6px; }
.champ.large { grid-column: 1 / -1; }
.champ label { font-weight: 700; font-size: .95rem; }
.champ input, .champ select, .champ textarea { width: 100%; min-height: 50px; padding: 12px 14px; font: inherit; font-size: 1rem; color: var(--encre); background: var(--blanc); border: 1.5px solid #C9C2B7; border-radius: 10px; }
.champ textarea { min-height: 110px; resize: vertical; }
.champ input:focus, .champ select:focus, .champ textarea:focus { outline: none; border-color: var(--cuivre); box-shadow: 0 0 0 3px rgba(164,82,28,.18); }
.formulaire .btn { width: 100%; margin-top: 20px; }
.formulaire .rgpd { font-size: .85rem; color: var(--doux); margin: 12px 0 0; }
.piege { display: none; }

/* Pied de page */
.pied { background: #161B1E; color: #AEB8BD; padding: 36px 0; font-size: .95rem; }
.pied .conteneur { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px; }
.pied a { color: var(--blanc); }
.pied nav ul { display: flex; flex-wrap: wrap; gap: 18px; list-style: none; margin: 0; padding: 0; }

/* Barre d'action mobile */
.barre-mobile { display: none; }

/* =====================================================================
   Tablette et mobile
   ===================================================================== */
@media (max-width: 960px) {
  .hero-grille, .signes, .zone, .contact-grille { grid-template-columns: 1fr; }
  .hero-grille { gap: 36px; }
}
@media (max-width: 820px) {
  .bouton-menu { display: grid; }
  .entete .btn-principal { display: none; }
  .nav { display: none; position: absolute; top: 100%; left: 0; right: 0; background: var(--creme); border-bottom: 1px solid var(--trait); box-shadow: 0 12px 24px rgba(0,0,0,.08); }
  .nav.ouvert { display: block; }
  .nav ul { flex-direction: column; gap: 0; padding: 6px 20px 14px; }
  .nav a { display: block; padding: 14px 4px; font-size: 1.1rem; border-bottom: 1px solid var(--trait); }

  .barre-mobile { display: grid; grid-template-columns: auto 1fr; gap: 10px; position: fixed; left: 0; right: 0; bottom: 0; z-index: 40; padding: 10px 12px calc(10px + env(safe-area-inset-bottom)); background: var(--blanc); box-shadow: 0 -4px 18px rgba(0,0,0,.12); transition: transform .2s; }
  .barre-mobile.masquee { transform: translateY(110%); }
  .barre-mobile .btn { min-height: 52px; padding: 10px 16px; font-size: 1rem; white-space: nowrap; }
  .pied { padding-bottom: 100px; }
}
@media (max-width: 680px) {
  section { padding: 56px 0; }
  .hero { padding: 40px 0 48px; }
  .hero-boutons .btn { width: 100%; }
  .services, .etapes, .champs { grid-template-columns: 1fr; }
  .service { padding: 20px; gap: 14px; }
  .service .ico { width: 44px; height: 44px; }
  .formulaire { padding: 22px 18px; }
  .marque span { display: none; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .barre-mobile { transition: none; } }
@media (max-width: 400px) {
  .barre-mobile .btn { padding: 10px 12px; gap: 8px; }
  .barre-mobile .btn-principal svg { display: none; }
}