/* ==========================================================
   AM RÉPARATION — Feuille de style principale
   Mobile d'abord : les règles de base visent les téléphones,
   les blocs @media élargissent la mise en page.
   ========================================================== */

/* ---------- 1. Couleurs et réglages (à modifier ici) ---------- */
:root {
  --noir: #0a0b0d;          /* fond principal */
  --gris-1: #121418;        /* fond des sections alternées */
  --gris-2: #191c21;        /* cartes */
  --gris-3: #2a2e35;        /* bordures */
  --blanc: #f4f5f7;         /* texte principal */
  --gris-texte: #a7adb7;    /* texte secondaire */
  --bleu: #005ffd;          /* bleu du logo : fonds de boutons */
  --bleu-clair: #5c97ff;    /* bleu lisible sur fond noir : textes, icônes */
  --bleu-halo: rgba(0, 95, 253, 0.18);

  --police: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --rayon: 14px;
  --largeur: 1120px;
  --hauteur-entete: 64px;
  --hauteur-barre-mobile: 64px;
}

/* ---------- 2. Base ---------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--hauteur-entete) + 12px);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--noir);
  color: var(--blanc);
  font-family: var(--police);
  font-size: 1.0625rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body.has-mobile-bar { padding-bottom: var(--hauteur-barre-mobile); }

img, svg { display: block; max-width: 100%; height: auto; }
picture { display: block; }

h1, h2, h3 { line-height: 1.2; margin: 0 0 .6em; font-weight: 700; }
p { margin: 0 0 1em; }

a { color: var(--bleu-clair); text-underline-offset: 3px; }
a:hover { color: var(--blanc); }

:focus-visible {
  outline: 3px solid var(--bleu-clair);
  outline-offset: 3px;
  border-radius: 6px;
}

.container {
  width: 100%;
  max-width: var(--largeur);
  margin-inline: auto;
  padding-inline: 20px;
}

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute; left: 12px; top: -60px; z-index: 100;
  background: var(--bleu); color: #fff; padding: 10px 16px; border-radius: 8px;
  text-decoration: none; font-weight: 600;
}
.skip-link:focus { top: 12px; color: #fff; }

.icon {
  width: 1.2em; height: 1.2em; flex: none;
  fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round;
}

/* ---------- 3. Boutons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .55em;
  min-height: 52px; padding: 0 26px;
  border-radius: 999px; border: 1px solid transparent;
  font: inherit; font-weight: 650; letter-spacing: .02em;
  text-decoration: none; cursor: pointer;
  transition: background-color .2s, border-color .2s, transform .2s, box-shadow .2s;
}
.btn-primary { background: var(--bleu); color: #fff; box-shadow: 0 8px 28px -10px var(--bleu); }
.btn-primary:hover { background: #1a70ff; color: #fff; transform: translateY(-1px); }
.btn-ghost { border-color: var(--gris-3); color: var(--blanc); background: transparent; }
.btn-ghost:hover { border-color: var(--bleu-clair); color: var(--blanc); }
.btn-small { min-height: 42px; padding: 0 20px; font-size: .95rem; }

/* ---------- 4. En-tête ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(10, 11, 13, .86);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(42, 46, 53, .7);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: var(--hauteur-entete);
}
.brand { display: flex; align-items: center; padding: 6px 0; }
.brand-mark { height: 30px; width: auto; }

/* Bouton menu (mobile) */
.nav-toggle {
  display: none;
  width: 48px; height: 48px; margin-right: -10px;
  background: none; border: 0; color: var(--blanc); cursor: pointer;
  align-items: center; justify-content: center;
}
.nav-toggle-bar, .nav-toggle-bar::before, .nav-toggle-bar::after {
  display: block; width: 22px; height: 2px; background: currentColor; border-radius: 2px;
  transition: transform .25s, background-color .25s;
}
.nav-toggle-bar { position: relative; }
.nav-toggle-bar::before, .nav-toggle-bar::after { content: ""; position: absolute; left: 0; }
.nav-toggle-bar::before { top: -7px; }
.nav-toggle-bar::after { top: 7px; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar::before { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar::after { transform: translateY(-7px) rotate(-45deg); }

.main-nav ul { list-style: none; margin: 0; padding: 0; display: flex; gap: 4px; }
.main-nav ul a {
  display: block; padding: 10px 14px; border-radius: 8px;
  color: var(--blanc); text-decoration: none; font-weight: 550;
}
.main-nav ul a:hover { background: var(--gris-2); }
.main-nav .btn { display: none; }

/* Sans JavaScript, le menu reste visible en ligne ; avec JavaScript il devient un menu déroulant sur mobile */
.no-js .main-nav ul { gap: 0; }
.no-js .main-nav ul a { padding: 10px 8px; font-size: .95rem; }
/* Sans JavaScript sur petit écran : le menu (4 liens) passe sous le logo au lieu de déborder */
@media (max-width: 899px) {
  .no-js .header-inner { flex-wrap: wrap; height: auto; min-height: var(--hauteur-entete); padding-block: 4px; }
  .no-js .main-nav { width: 100%; }
  .no-js .main-nav ul { flex-wrap: wrap; justify-content: center; }
}

.js .nav-toggle { display: inline-flex; }
.js .main-nav {
  position: absolute; left: 0; right: 0; top: var(--hauteur-entete);
  background: var(--noir); border-bottom: 1px solid var(--gris-3);
  padding: 8px 20px 20px;
  display: none;
}
.js .main-nav.is-open { display: block; }
.js .main-nav ul { flex-direction: column; }
.js .main-nav ul a { padding: 14px 8px; font-size: 1.1rem; border-bottom: 1px solid var(--gris-2); border-radius: 0; }

/* ---------- 5. Accueil ---------- */
.hero {
  position: relative; overflow: hidden;
  padding: 40px 0 64px;
  text-align: center;
  isolation: isolate;
}
/* Halo bleu + trame discrète type circuit, en CSS pur (aucune image) */
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(600px 340px at 50% 38%, var(--bleu-halo), transparent 70%),
    linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px) 0 0 / 40px 40px,
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px) 0 0 / 40px 40px;
  -webkit-mask-image: radial-gradient(ellipse at 50% 40%, #000 30%, transparent 75%);
          mask-image: radial-gradient(ellipse at 50% 40%, #000 30%, transparent 75%);
}
.hero-inner { display: flex; flex-direction: column; align-items: center; }
.hero-logo { width: min(88vw, 560px); margin-bottom: 28px; }
.hero-logo img { width: 100%; height: auto; }

.hero h1 {
  font-size: clamp(1.55rem, 5.6vw, 2.6rem);
  max-width: 20ch; letter-spacing: -.01em;
}
.accent { color: var(--bleu-clair); }
.lead { color: var(--gris-texte); max-width: 56ch; font-size: 1.08rem; margin-bottom: 28px; }

.hero-actions { display: flex; flex-direction: column; gap: 12px; width: 100%; max-width: 360px; }

/* ---------- 6. Sections ---------- */
.section { padding: 64px 0; }
.section-alt { background: var(--gris-1); border-block: 1px solid var(--gris-2); }

.eyebrow {
  color: var(--bleu-clair); text-transform: uppercase; letter-spacing: .22em;
  font-size: .8rem; font-weight: 700; margin-bottom: .8em;
}
.section h2 { font-size: clamp(1.6rem, 5vw, 2.3rem); margin-bottom: .9em; letter-spacing: -.01em; }
.section-intro { color: var(--gris-texte); max-width: 60ch; margin-top: -.4em; margin-bottom: 28px; }

/* Cartes services */
.cards { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.card {
  background: var(--gris-2); border: 1px solid var(--gris-3); border-radius: var(--rayon);
  padding: 24px 22px;
  transition: border-color .2s, transform .2s;
}
.card:hover { border-color: rgba(92, 151, 255, .55); }
.card h3 { font-size: 1.15rem; margin-bottom: .45em; }
.card p { color: var(--gris-texte); margin: 0; }
.card-icon {
  width: 44px; height: 44px; padding: 10px; margin-bottom: 16px;
  border-radius: 12px; background: rgba(0, 95, 253, .12); color: var(--bleu-clair);
  fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round;
}
.card-cta {
  background: linear-gradient(160deg, rgba(0, 95, 253, .16), var(--gris-2) 70%);
  display: flex; flex-direction: column; justify-content: center;
}
.card-cta p { margin-bottom: 14px; }
.link-arrow { font-weight: 650; text-decoration: none; align-self: flex-start; }
.link-arrow::after { content: " →"; }

/* Étapes */
.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.step {
  position: relative; padding: 22px 22px 22px 76px;
  background: var(--gris-2); border: 1px solid var(--gris-3); border-radius: var(--rayon);
}
.step-num {
  position: absolute; left: 20px; top: 20px;
  font-size: 1.5rem; font-weight: 800; color: var(--bleu-clair); letter-spacing: .02em;
}
.step h3 { font-size: 1.1rem; margin-bottom: .35em; }
.step p { color: var(--gris-texte); margin: 0; }

/* Contact */
.contact-list { list-style: none; margin: 0 0 24px; padding: 0; display: grid; gap: 12px; }
.contact-card {
  display: grid; grid-template-columns: auto 1fr; column-gap: 16px; align-items: center;
  padding: 18px 20px; min-height: 76px;
  background: var(--gris-2); border: 1px solid var(--gris-3); border-radius: var(--rayon);
  color: var(--blanc); text-decoration: none;
  transition: border-color .2s, background-color .2s;
}
.contact-card:hover { border-color: var(--bleu-clair); background: #1d2127; color: var(--blanc); }
.contact-card .card-icon { grid-row: span 2; margin: 0; }
.contact-label { color: var(--gris-texte); font-size: .9rem; }
.contact-value { font-weight: 650; font-size: 1.05rem; overflow-wrap: anywhere; }

.zone { display: flex; align-items: center; gap: .5em; color: var(--gris-texte); margin: 0; }
.zone .icon { color: var(--bleu-clair); }

/* ---------- 7. Pied de page ---------- */
.site-footer { border-top: 1px solid var(--gris-2); padding: 40px 0 24px; background: #08090b; }
.footer-inner { display: grid; gap: 24px; }
.footer-mark { height: 30px; width: auto; margin-bottom: 10px; }
.footer-tagline { color: var(--gris-texte); text-transform: uppercase; letter-spacing: .18em; font-size: .75rem; margin: 0; }
.footer-links { list-style: none; margin: 0; padding: 0; display: grid; gap: 4px; }
.footer-links a { display: inline-block; padding: 6px 0; color: var(--blanc); text-decoration: none; }
.footer-links a:hover { color: var(--bleu-clair); text-decoration: underline; }
.copyright { color: #7d838d; font-size: .85rem; margin-top: 28px; }

/* ---------- 8. Barre d'actions mobile ---------- */
.mobile-bar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 60;
  display: grid; grid-template-columns: repeat(3, 1fr);
  height: var(--hauteur-barre-mobile);
  padding-bottom: env(safe-area-inset-bottom);
  background: rgba(14, 16, 19, .94);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid var(--gris-3);
}
.mobile-bar a {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 3px;
  color: var(--blanc); text-decoration: none; font-size: .8rem; font-weight: 600;
}
.mobile-bar a:first-child { color: #fff; background: var(--bleu); }
.mobile-bar .icon { width: 22px; height: 22px; }

/* ---------- 9. Pages simples (mentions légales, 404) ---------- */
.page { padding: 48px 0 72px; }
.page h1 { font-size: clamp(1.7rem, 5vw, 2.4rem); margin-bottom: .8em; }
.page h2 { font-size: 1.25rem; margin-top: 2em; color: var(--blanc); }
.page p, .page li { color: #cfd3da; }
.page .container { max-width: 780px; }
.a-completer {
  background: rgba(255, 196, 0, .16); color: #ffd659;
  border: 1px dashed rgba(255, 196, 0, .6); border-radius: 4px; padding: 0 .3em;
  font-weight: 600;
}
.notice {
  border: 1px solid rgba(255, 196, 0, .5); background: rgba(255, 196, 0, .08);
  border-radius: var(--rayon); padding: 14px 18px; color: #ffe08a;
}
.center { text-align: center; }

/* ---------- 10. Tablette et ordinateur ---------- */
@media (min-width: 640px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .hero-actions { flex-direction: row; justify-content: center; max-width: none; }
  .contact-list { grid-template-columns: repeat(3, 1fr); }
  .contact-card { grid-template-columns: 1fr; row-gap: 4px; align-items: start; }
  .contact-card .card-icon { grid-row: auto; margin-bottom: 10px; }
  .footer-inner { grid-template-columns: 1fr auto; align-items: start; }
}

@media (min-width: 900px) {
  :root { --hauteur-entete: 76px; }
  body.has-mobile-bar { padding-bottom: 0; }
  .mobile-bar { display: none; }

  .brand-mark { height: 36px; }
  .js .nav-toggle { display: none; }
  .js .main-nav, .main-nav {
    position: static; display: flex; align-items: center; gap: 18px;
    background: none; border: 0; padding: 0;
  }
  .js .main-nav ul { flex-direction: row; }
  .js .main-nav ul a { padding: 10px 14px; font-size: 1rem; border: 0; border-radius: 8px; }
  .main-nav .btn { display: inline-flex; }

  .hero { padding: 72px 0 96px; }
  .section { padding: 96px 0; }
  .cards { grid-template-columns: repeat(3, 1fr); gap: 18px; }
  .steps { grid-template-columns: repeat(3, 1fr); gap: 18px; }
  .step { padding: 28px 24px; }
  .step-num { position: static; display: block; margin-bottom: 14px; }
}

/* ---------- 11. Réduire les animations si l'utilisateur le demande ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}

/* ==========================================================
   12. Demande de devis (chantier 1)
   Le formulaire prépare un message ; il n'envoie et n'enregistre rien.
   ========================================================== */
.devis-form, .devis-envoi, .devis-nojs {
  background: var(--gris-2); border: 1px solid var(--gris-3); border-radius: var(--rayon);
  padding: 22px 18px;
}
.devis-nojs ul { margin: 0 0 1em; padding-left: 1.2em; color: #cfd3da; }
.devis-nojs p, .devis-nojs li { color: #cfd3da; }
/* Le formulaire n'est affiché que lorsque script.js l'a réellement initialisé (classe « devis-pret »).
   Sinon (JavaScript désactivé, script non chargé ou en erreur) : consignes et liens directs. */
.devis-form, .devis-envoi { display: none; }
.devis-pret .devis-form { display: block; }
.devis-pret .devis-envoi:not([hidden]) { display: block; }
.devis-pret .devis-nojs { display: none; }

.form-help { color: var(--gris-texte); font-size: .95rem; margin-bottom: 18px; }
.form-grid { display: grid; gap: 18px; }
.field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.field label, .apercu-label { font-weight: 650; }
.req { color: var(--bleu-clair); }
.opt { color: var(--gris-texte); font-weight: 400; font-size: .9rem; }
.field-help { color: var(--gris-texte); font-size: .88rem; margin: 0; }

.devis-form input[type="text"], .devis-form select, .devis-form textarea, .apercu {
  width: 100%;
  font: inherit; font-size: 1rem; /* 16px minimum : évite le zoom automatique sur iPhone */
  color: var(--blanc); background: var(--noir);
  border: 1px solid #6b727d; border-radius: 10px;
  padding: 12px 14px; min-height: 48px;
}
.devis-form select {
  appearance: none; -webkit-appearance: none;
  padding-right: 40px;
  background-image: linear-gradient(45deg, transparent 50%, var(--gris-texte) 50%), linear-gradient(135deg, var(--gris-texte) 50%, transparent 50%);
  background-position: calc(100% - 20px) 50%, calc(100% - 14px) 50%;
  background-size: 6px 6px; background-repeat: no-repeat;
}
.devis-form select:disabled { opacity: .6; }
.devis-form option { background: var(--noir); color: var(--blanc); }
.devis-form textarea, .apercu { min-height: 110px; resize: vertical; line-height: 1.5; }
.devis-form input[type="file"] {
  font: inherit; font-size: .95rem; color: var(--gris-texte);
  padding: 10px; border: 1px dashed #6b727d; border-radius: 10px; background: var(--noir);
}
.devis-form input[type="file"]::file-selector-button {
  font: inherit; font-weight: 600; color: var(--blanc);
  background: var(--gris-3); border: 0; border-radius: 8px; padding: 8px 14px; margin-right: 12px; cursor: pointer;
}
.devis-form input:focus-visible, .devis-form select:focus-visible, .devis-form textarea:focus-visible, .apercu:focus-visible {
  border-color: var(--bleu-clair); outline: 3px solid rgba(92, 151, 255, .45); outline-offset: 1px;
}
.devis-form [aria-invalid="true"] { border-color: #ff7a7a; }
.field-error { color: #ff9b9b; font-size: .9rem; font-weight: 600; margin: 0; }
.form-errors {
  border: 1px solid #ff7a7a; background: rgba(255, 90, 90, .1); color: #ffc2c2;
  border-radius: 10px; padding: 12px 16px; margin-bottom: 18px;
}
.form-errors ul { margin: 6px 0 0; padding-left: 1.2em; }
.form-errors a { color: #ffc2c2; }

.form-actions, .envoi-actions { display: flex; flex-direction: column; gap: 12px; margin-top: 22px; }
.form-actions .btn, .envoi-actions .btn { width: 100%; }
button.btn { font-size: 1rem; }

.devis-envoi h3 { font-size: 1.2rem; }
.devis-envoi > p { color: #cfd3da; }
.apercu { font-size: .95rem; color: #dfe2e7; background: #0f1114; margin-top: 6px; }
.envoi-note { color: var(--gris-texte); font-size: .92rem; margin: 14px 0 0; }
.envoi-statut { margin: 16px 0 0; font-weight: 600; color: var(--bleu-clair); }
.envoi-statut:empty { display: none; }
.envoi-statut.is-warning { color: #ffd659; }
.btn-link {
  margin-top: 18px; padding: 10px 0; min-height: 44px;
  background: none; border: 0; color: var(--bleu-clair); font: inherit; font-weight: 600;
  text-decoration: underline; text-underline-offset: 3px; cursor: pointer;
}
[hidden] { display: none !important; }

@media (min-width: 640px) {
  .devis-form, .devis-envoi, .devis-nojs { padding: 30px; }
  .form-grid { grid-template-columns: 1fr 1fr; }
  .field-full { grid-column: 1 / -1; }
  .form-actions, .envoi-actions { flex-direction: row; flex-wrap: wrap; }
  .form-actions .btn, .envoi-actions .btn { width: auto; }
}
@media (min-width: 900px) {
  .devis-form, .devis-envoi, .devis-nojs { max-width: 860px; }
}