/* ==========================================================================
   Les Enseignes Tremblay — Neuville, QC
   « Nous colorons le monde, une enseigne à la fois ! »
   Feuille de style principale
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Variables / Design tokens
   -------------------------------------------------------------------------- */
:root {
  /* Couleurs de marque — ajustez --accent selon votre logo */
  --noir-900: #0d0d0f;
  --noir-800: #17171b;
  --noir-700: #202027;
  --noir-600: #2c2c35;

  --accent-600: #c62828;
  --accent-500: #e53935;
  --accent-400: #ef5350;
  --accent-100: #ffebee;

  --gris-900: #111827;
  --gris-800: #1f2937;
  --gris-700: #374151;
  --gris-600: #4b5563;
  --gris-500: #6b7280;
  --gris-400: #9ca3af;
  --gris-300: #d1d5db;
  --gris-200: #e5e7eb;
  --gris-100: #f3f4f6;
  --gris-50:  #f9fafb;
  --blanc:    #ffffff;

  --succes: #16a34a;
  --erreur: #dc2626;

  /* Sémantique */
  --c-texte: var(--gris-800);
  --c-texte-doux: var(--gris-600);
  --c-titre: var(--noir-900);
  --c-accent: var(--accent-500);
  --c-fond: var(--blanc);
  --c-fond-alt: var(--gris-50);
  --c-bordure: var(--gris-200);

  /* Typographie */
  --font-titre: "Barlow Condensed", "Oswald", "Arial Narrow", system-ui, sans-serif;
  --font-corps: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --fs-xs: 0.8125rem;
  --fs-sm: 0.9375rem;
  --fs-base: 1.0625rem;
  --fs-lg: 1.1875rem;
  --fs-xl: 1.375rem;
  --fs-2xl: 1.75rem;
  --fs-3xl: 2.25rem;
  --fs-4xl: 3rem;
  --fs-5xl: 3.75rem;

  /* Espacements */
  --e-1: 0.25rem;
  --e-2: 0.5rem;
  --e-3: 0.75rem;
  --e-4: 1rem;
  --e-5: 1.5rem;
  --e-6: 2rem;
  --e-7: 3rem;
  --e-8: 4rem;
  --e-9: 6rem;

  /* Divers */
  --rayon-sm: 6px;
  --rayon: 10px;
  --rayon-lg: 16px;
  --rayon-full: 999px;

  --ombre-sm: 0 1px 2px rgba(13, 13, 15, .06), 0 1px 3px rgba(13, 13, 15, .08);
  --ombre: 0 4px 6px -1px rgba(13, 13, 15, .08), 0 2px 4px -2px rgba(13, 13, 15, .06);
  --ombre-lg: 0 12px 24px -6px rgba(13, 13, 15, .14), 0 6px 12px -8px rgba(13, 13, 15, .10);
  --ombre-xl: 0 24px 48px -12px rgba(13, 13, 15, .24);

  --transition: 220ms cubic-bezier(.4, 0, .2, 1);
  --largeur-max: 1200px;
  --hauteur-entete: 134px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--hauteur-entete) + 1rem);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-corps);
  font-size: var(--fs-base);
  line-height: 1.7;
  color: var(--c-texte);
  background: var(--c-fond);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

h1, h2, h3, h4, h5 {
  font-family: var(--font-titre);
  color: var(--c-titre);
  line-height: 1.12;
  margin: 0 0 var(--e-4);
  font-weight: 700;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.25rem, 5.5vw, var(--fs-5xl)); text-transform: uppercase; }
h2 { font-size: clamp(1.85rem, 4vw, var(--fs-3xl)); text-transform: uppercase; }
h3 { font-size: var(--fs-xl); }
h4 { font-size: var(--fs-lg); }

p { margin: 0 0 var(--e-4); }
p:last-child { margin-bottom: 0; }

a { color: var(--accent-600); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent-500); }

ul, ol { margin: 0 0 var(--e-4); padding-left: 1.25rem; }
li { margin-bottom: var(--e-2); }

:focus-visible {
  outline: 3px solid var(--accent-500);
  outline-offset: 3px;
  border-radius: var(--rayon-sm);
}

::selection { background: var(--accent-100); color: var(--noir-900); }

/* --------------------------------------------------------------------------
   3. Utilitaires / Layout
   -------------------------------------------------------------------------- */
.conteneur {
  width: 100%;
  max-width: var(--largeur-max);
  margin-inline: auto;
  padding-inline: var(--e-5);
}

.section { padding-block: clamp(3.5rem, 8vw, var(--e-9)); }
.section--alt { background: var(--c-fond-alt); }
.section--fonce { background: var(--noir-900); color: rgba(255,255,255,.82); }
.section--fonce h2, .section--fonce h3 { color: var(--blanc); }

.entete-section { max-width: 760px; margin: 0 auto clamp(2rem, 5vw, 3.25rem); text-align: center; }
.entete-section p { color: var(--c-texte-doux); font-size: var(--fs-lg); }
.section--fonce .entete-section p { color: rgba(255,255,255,.72); }

.surtitre {
  display: inline-block;
  font-family: var(--font-corps);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent-500);
  margin-bottom: var(--e-3);
}

.texte-centre { text-align: center; }
.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;
}

.lien-evitement {
  position: absolute; top: -100px; left: var(--e-4); z-index: 999;
  background: var(--accent-500); color: #fff; padding: var(--e-3) var(--e-5);
  border-radius: var(--rayon); font-weight: 600;
}
.lien-evitement:focus { top: var(--e-4); color: #fff; }

.grille { display: grid; gap: var(--e-5); }
.grille--2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.grille--3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grille--4 { grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); }

/* --------------------------------------------------------------------------
   4. Boutons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--e-2);
  padding: 0.9rem 1.9rem;
  font-family: var(--font-corps);
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: .02em;
  border-radius: var(--rayon-full);
  border: 2px solid transparent;
  cursor: pointer;
  text-align: center;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn--primaire {
  background: var(--accent-500);
  color: #fff;
  box-shadow: 0 6px 16px -6px rgba(229, 57, 53, .7);
}
.btn--primaire:hover {
  background: var(--accent-600);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 12px 24px -8px rgba(229, 57, 53, .75);
}

.btn--secondaire { background: var(--noir-800); color: #fff; }
.btn--secondaire:hover { background: var(--noir-900); color: #fff; transform: translateY(-2px); }

.btn--contour {
  background: transparent;
  color: var(--blanc);
  border-color: rgba(255,255,255,.6);
}
.btn--contour:hover { background: rgba(255,255,255,.14); border-color: #fff; color: #fff; }

.btn--contour-fonce {
  background: transparent;
  color: var(--noir-800);
  border-color: var(--gris-300);
}
.btn--contour-fonce:hover { border-color: var(--noir-800); background: var(--noir-800); color: #fff; }

.btn--large { padding: 1.05rem 2.4rem; font-size: var(--fs-base); }
.btn--bloc { display: flex; width: 100%; }

.groupe-btn { display: flex; flex-wrap: wrap; gap: var(--e-3); }
.groupe-btn--centre { justify-content: center; }

/* --------------------------------------------------------------------------
   5. Barre d'information + En-tête
   -------------------------------------------------------------------------- */
.barre-info {
  background: #000;
  color: rgba(255,255,255,.8);
  font-size: var(--fs-xs);
  border-bottom: 1px solid rgba(255,255,255,.07);
}
.barre-info .conteneur {
  display: flex; flex-wrap: wrap; align-items: center;
  justify-content: space-between; gap: var(--e-3);
  padding-block: .55rem;
}
.barre-info a { color: rgba(255,255,255,.9); }
.barre-info a:hover { color: var(--accent-400); }
.barre-info__liste { display: flex; flex-wrap: wrap; gap: var(--e-5); list-style: none; margin: 0; padding: 0; }
.barre-info__liste li { margin: 0; display: flex; align-items: center; gap: .4rem; }

.entete {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(23, 23, 27, .97);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid #2b2b34;
  transition: box-shadow var(--transition);
}
.entete.est-collee { box-shadow: 0 6px 20px -8px rgba(0,0,0,.6); }

.entete__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--e-5);
  min-height: var(--hauteur-entete);
}

.logo { display: flex; align-items: center; gap: .75rem; }
.logo:hover { color: inherit; }
.logo img { height: 110px; width: auto; transition: transform var(--transition); }
.logo:hover img { transform: scale(1.03); }
.logo__texte { display: flex; flex-direction: column; line-height: 1.1; }
.logo__nom {
  font-family: var(--font-titre); font-size: 1.3rem; font-weight: 700;
  text-transform: uppercase; color: var(--noir-900); letter-spacing: .01em;
}
.logo__slogan {
  font-size: .66rem; letter-spacing: .12em; text-transform: uppercase;
  color: var(--accent-500); font-weight: 700;
}

.nav { display: flex; align-items: center; gap: var(--e-5); }
.nav__liste { display: flex; align-items: center; gap: var(--e-1); list-style: none; margin: 0; padding: 0; }
.nav__liste li { margin: 0; }
.nav__lien {
  display: block;
  padding: .55rem .85rem;
  font-size: var(--fs-sm);
  font-weight: 600;
  color: rgba(255,255,255,.78);
  border-radius: var(--rayon-sm);
}
.nav__lien:hover { color: #fff; background: rgba(255,255,255,.1); }
.nav__lien.est-actif { color: #fff; }
.nav__lien.est-actif::after {
  content: ""; display: block; height: 3px; width: 22px;
  background: var(--accent-500); border-radius: 2px; margin: .25rem auto 0;
}

.bascule-menu {
  display: none;
  width: 46px; height: 46px;
  border: 1px solid rgba(255,255,255,.25);
  background: transparent;
  border-radius: var(--rayon-sm);
  cursor: pointer;
  padding: 0;
  place-items: center;
}
.bascule-menu span {
  display: block; width: 20px; height: 2px; background: #fff;
  border-radius: 2px; position: relative; transition: all var(--transition);
}
.bascule-menu span::before, .bascule-menu span::after {
  content: ""; position: absolute; left: 0; width: 20px; height: 2px;
  background: #fff; border-radius: 2px; transition: all var(--transition);
}
.bascule-menu span::before { top: -6px; }
.bascule-menu span::after { top: 6px; }
.bascule-menu[aria-expanded="true"] span { background: transparent; }
.bascule-menu[aria-expanded="true"] span::before { top: 0; transform: rotate(45deg); }
.bascule-menu[aria-expanded="true"] span::after { top: 0; transform: rotate(-45deg); }

/* --------------------------------------------------------------------------
   6. Hero — photo d'enseigne + signature néon
   Voile dégradé : sombre à gauche (texte lisible), clair à droite (enseigne visible)
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  color: #fff;
  background-color: #08080a;
  background-image:
    linear-gradient(100deg,
      rgba(8,8,10,.90) 0%,
      rgba(8,8,10,.72) 42%,
      rgba(8,8,10,.34) 72%,
      rgba(8,8,10,.18) 100%),
    url("../img/realisations/realisation-19.jpg");
  background-size: cover;
  /* Cadrage : on montre davantage la droite et le haut de la photo */
  background-position: 72% 28%;
  overflow: hidden;
}

/* Halo rouge discret en bas à gauche */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  background: radial-gradient(560px 380px at 8% 72%, rgba(229,57,53,.30), transparent 68%);
  pointer-events: none;
}

/* Tube néon horizontal, juste sous l'en-tête */
.hero::after {
  content: "";
  position: absolute;
  left: 0; right: 0; top: 0;
  height: 4px;
  z-index: 3;
  background: linear-gradient(90deg, transparent, #ff5a52 18%, #fff 50%, #ff5a52 82%, transparent);
  box-shadow:
    0 0 32px 9px rgba(229,57,53,.7),
    0 0 80px 26px rgba(229,57,53,.28);
  pointer-events: none;
}

.hero__inner {
  position: relative; z-index: 4;
  padding-block: clamp(4rem, 11vw, 8.5rem);
  /* Le texte reste collé à gauche du conteneur, pas centré */
  margin-inline: 0 auto;
  max-width: 760px;
}
.hero h1 { color: #fff; margin-bottom: var(--e-4); text-shadow: 0 2px 20px rgba(0,0,0,.55); }
.hero h1 .accent { color: var(--accent-400); }
.hero__texte {
  font-size: var(--fs-lg); color: rgba(255,255,255,.88);
  max-width: 58ch; margin-bottom: var(--e-6);
  text-shadow: 0 1px 12px rgba(0,0,0,.5);
}
.hero .surtitre { color: var(--accent-400); }

.hero__badges { display: flex; flex-wrap: wrap; gap: var(--e-5); margin-top: var(--e-7); list-style: none; padding: 0; }
.hero__badges li {
  display: flex; align-items: center; gap: .5rem; margin: 0;
  font-size: var(--fs-sm); color: rgba(255,255,255,.9);
}
.hero__badges svg { color: var(--accent-400); flex-shrink: 0; }

/* Bandeau slogan */
.slogan-bande {
  background: var(--accent-500);
  color: #fff;
  text-align: center;
  padding-block: var(--e-5);
}
.slogan-bande p {
  font-family: var(--font-titre);
  font-size: clamp(1.35rem, 3.2vw, 2rem);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin: 0;
  font-weight: 700;
}

/* --------------------------------------------------------------------------
   7. Bandeau statistiques
   -------------------------------------------------------------------------- */
.bandeau-stats { background: var(--noir-800); color: #fff; }
.bandeau-stats .grille { gap: var(--e-5); padding-block: var(--e-6); }
.stat { text-align: center; }
.stat__valeur {
  font-family: var(--font-titre); font-size: clamp(2rem, 4vw, 2.85rem);
  font-weight: 700; color: var(--accent-400); line-height: 1;
}
.stat__libelle {
  font-size: var(--fs-xs); letter-spacing: .1em; text-transform: uppercase;
  color: rgba(255,255,255,.7); margin-top: var(--e-2);
}

/* --------------------------------------------------------------------------
   8. Cartes
   -------------------------------------------------------------------------- */
.carte {
  background: #fff;
  border: 1px solid var(--c-bordure);
  border-radius: var(--rayon-lg);
  padding: var(--e-6);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
}
.carte:hover { transform: translateY(-6px); box-shadow: var(--ombre-lg); border-color: transparent; }
.carte h3 { margin-bottom: var(--e-3); }
.carte p { color: var(--c-texte-doux); font-size: var(--fs-sm); }

.carte__icone {
  width: 56px; height: 56px;
  border-radius: var(--rayon);
  background: linear-gradient(135deg, var(--accent-100), #fff);
  color: var(--accent-600);
  display: grid; place-items: center;
  margin-bottom: var(--e-5);
  border: 1px solid var(--accent-100);
}
.carte__liste { list-style: none; padding: 0; margin: var(--e-4) 0 0; }
.carte__liste li {
  position: relative; padding-left: 1.5rem; font-size: var(--fs-sm);
  color: var(--c-texte-doux); margin-bottom: var(--e-2);
}
.carte__liste li::before {
  content: ""; position: absolute; left: 0; top: .62em;
  width: 7px; height: 7px; border-radius: 50%; background: var(--accent-500);
}

/* Liste complète de services (puces) */
.liste-services {
  list-style: none; padding: 0; margin: 0;
  display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: var(--e-3);
}
.liste-services li {
  display: flex; align-items: flex-start; gap: .6rem;
  margin: 0; padding: .75rem 1rem;
  background: #fff; border: 1px solid var(--c-bordure); border-radius: var(--rayon-sm);
  font-size: var(--fs-sm); font-weight: 500; color: var(--gris-700);
  transition: all var(--transition);
}
.liste-services li:hover { border-color: var(--accent-500); transform: translateX(3px); }
.liste-services svg { color: var(--accent-500); flex-shrink: 0; margin-top: .3rem; }

/* --------------------------------------------------------------------------
   9. Processus (étapes)
   -------------------------------------------------------------------------- */
.etapes { counter-reset: etape; }
.etape { position: relative; padding-top: var(--e-5); }
.etape::before {
  counter-increment: etape;
  content: "0" counter(etape);
  font-family: var(--font-titre);
  font-size: 3rem; font-weight: 700; line-height: 1;
  color: var(--gris-200);
  display: block; margin-bottom: var(--e-3);
}
.etape h3 { font-size: var(--fs-lg); margin-bottom: var(--e-2); }
.etape p { font-size: var(--fs-sm); color: var(--c-texte-doux); }
.section--fonce .etape::before { color: rgba(255,255,255,.18); }
.section--fonce .etape p { color: rgba(255,255,255,.7); }

/* --------------------------------------------------------------------------
   10. Galerie de photos réelles
   -------------------------------------------------------------------------- */
.galerie {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--e-4);
}
.galerie--accueil { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }

.photo {
  position: relative;
  display: block;
  border-radius: var(--rayon);
  overflow: hidden;
  background: var(--gris-100);
  aspect-ratio: 4 / 3;
  box-shadow: var(--ombre-sm);
  transition: transform var(--transition), box-shadow var(--transition);
  cursor: zoom-in;
  border: 0;
  padding: 0;
  width: 100%;
}
.photo img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 600ms cubic-bezier(.4,0,.2,1);
}
.photo:hover { transform: translateY(-4px); box-shadow: var(--ombre-lg); }
.photo:hover img { transform: scale(1.06); }
.photo::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(13,13,15,.45), transparent 55%);
  opacity: 0;
  transition: opacity var(--transition);
  pointer-events: none;
}
.photo:hover::after { opacity: 1; }

/* Visionneuse plein écran */
.visionneuse {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(10,10,12,.94);
  display: none;
  align-items: center; justify-content: center;
  padding: var(--e-5);
}
.visionneuse.est-ouverte { display: flex; }
.visionneuse img {
  max-width: 92vw; max-height: 86vh;
  object-fit: contain;
  border-radius: var(--rayon-sm);
  box-shadow: var(--ombre-xl);
}
.visionneuse__fermer, .visionneuse__prec, .visionneuse__suiv {
  position: absolute;
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.25);
  color: #fff;
  width: 48px; height: 48px;
  border-radius: 50%;
  display: grid; place-items: center;
  cursor: pointer;
  font-size: 1.4rem; line-height: 1;
  transition: background var(--transition);
}
.visionneuse__fermer:hover, .visionneuse__prec:hover, .visionneuse__suiv:hover { background: rgba(255,255,255,.28); }
.visionneuse__fermer { top: var(--e-5); right: var(--e-5); }
.visionneuse__prec { left: var(--e-5); top: 50%; transform: translateY(-50%); }
.visionneuse__suiv { right: var(--e-5); top: 50%; transform: translateY(-50%); }
.visionneuse__compteur {
  position: absolute; bottom: var(--e-5); left: 50%; transform: translateX(-50%);
  color: rgba(255,255,255,.75); font-size: var(--fs-sm);
}

/* --------------------------------------------------------------------------
   11. Appel à l'action
   -------------------------------------------------------------------------- */
.cta {
  background: linear-gradient(115deg, var(--noir-900), var(--noir-700));
  color: #fff;
  border-radius: var(--rayon-lg);
  padding: clamp(2.5rem, 6vw, 4rem);
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--ombre-xl);
}
.cta::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(600px 300px at 15% 20%, rgba(229,57,53,.32), transparent 65%);
}
.cta > * { position: relative; z-index: 1; }
.cta h2 { color: #fff; }
.cta p { color: rgba(255,255,255,.8); font-size: var(--fs-lg); max-width: 58ch; margin-inline: auto; margin-bottom: var(--e-6); }

/* --------------------------------------------------------------------------
   12. Formulaire
   -------------------------------------------------------------------------- */
.formulaire { display: grid; gap: var(--e-4); }
.champ { display: flex; flex-direction: column; gap: .4rem; }
.champ--double { display: grid; grid-template-columns: 1fr 1fr; gap: var(--e-4); }
.champ label { font-size: var(--fs-sm); font-weight: 600; color: var(--gris-700); }
.champ .requis { color: var(--erreur); }

.champ input, .champ select, .champ textarea {
  width: 100%;
  padding: .8rem 1rem;
  font-family: var(--font-corps);
  font-size: var(--fs-sm);
  color: var(--c-texte);
  background: #fff;
  border: 1px solid var(--gris-300);
  border-radius: var(--rayon-sm);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.champ textarea { resize: vertical; min-height: 140px; }
.champ input:focus, .champ select:focus, .champ textarea:focus {
  outline: none;
  border-color: var(--accent-500);
  box-shadow: 0 0 0 3px rgba(229, 57, 53, .15);
}
.champ input[aria-invalid="true"], .champ textarea[aria-invalid="true"], .champ select[aria-invalid="true"] {
  border-color: var(--erreur);
  box-shadow: 0 0 0 3px rgba(220, 38, 38, .12);
}
.champ__erreur { font-size: var(--fs-xs); color: var(--erreur); min-height: 1em; }

.champ--case { flex-direction: row; align-items: flex-start; gap: .6rem; }
.champ--case input { width: auto; margin-top: .35rem; }
.champ--case label { font-weight: 400; font-size: var(--fs-xs); color: var(--gris-600); }

/* Bloc d'envoi de fichiers par courriel */
.bloc-fichiers {
  display: flex;
  gap: var(--e-4);
  background: var(--gris-50);
  border: 1px solid var(--c-bordure);
  border-left: 3px solid var(--accent-500);
  border-radius: var(--rayon);
  padding: var(--e-5);
}
.bloc-fichiers__ico {
  width: 42px; height: 42px; flex-shrink: 0;
  border-radius: var(--rayon-sm);
  background: var(--accent-100);
  color: var(--accent-600);
  display: grid; place-items: center;
}
.bloc-fichiers__titre {
  font-weight: 700; color: var(--noir-900);
  font-size: var(--fs-sm); margin-bottom: .35rem;
}
.bloc-fichiers__txt {
  font-size: var(--fs-xs); color: var(--c-texte-doux);
  margin-bottom: var(--e-4);
}
.bloc-fichiers .btn { padding: .6rem 1.1rem; font-size: var(--fs-xs); }
.bloc-fichiers__note {
  font-size: var(--fs-xs); color: var(--gris-500);
  margin-top: var(--e-3); margin-bottom: 0;
}

.message-formulaire {
  display: none;
  padding: var(--e-4) var(--e-5);
  border-radius: var(--rayon-sm);
  font-size: var(--fs-sm);
  font-weight: 600;
}
.message-formulaire.est-visible { display: block; }
.message-formulaire--succes { background: #ecfdf5; color: #065f46; border: 1px solid #a7f3d0; }
.message-formulaire--erreur { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }

/* --------------------------------------------------------------------------
   13. Coordonnées
   -------------------------------------------------------------------------- */
.coordonnees { list-style: none; padding: 0; margin: 0; display: grid; gap: var(--e-5); }
.coordonnee { display: flex; gap: var(--e-4); margin: 0; }
.coordonnee__icone {
  width: 44px; height: 44px; flex-shrink: 0; border-radius: var(--rayon-sm);
  background: var(--accent-100); color: var(--accent-600);
  display: grid; place-items: center;
}
.coordonnee__titre { font-weight: 700; color: var(--noir-900); font-size: var(--fs-sm); margin-bottom: .1rem; }
.coordonnee__valeur { color: var(--c-texte-doux); font-size: var(--fs-sm); }

.carte-geo {
  border-radius: var(--rayon-lg);
  overflow: hidden;
  border: 1px solid var(--c-bordure);
  min-height: 340px;
  background: var(--gris-100);
}
.carte-geo iframe { width: 100%; height: 100%; min-height: 340px; border: 0; display: block; }

/* --------------------------------------------------------------------------
   14. Bannière de page intérieure
   -------------------------------------------------------------------------- */
.banniere {
  position: relative;
  background-color: #0b0b0e;
  background-size: cover;
  background-position: center;
  color: #fff;
  padding-block: clamp(3rem, 7vw, 5.5rem);
  text-align: center;
  overflow: hidden;
}

/* Halo rouge, dans l'esprit du néon de l'accueil */
.banniere::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(620px 400px at 22% 62%, rgba(229,57,53,.34), transparent 66%),
    radial-gradient(460px 300px at 80% 26%, rgba(255,255,255,.05), transparent 64%);
  pointer-events: none;
}

/* Filet lumineux en haut, comme sur la page d'accueil */
.banniere::after {
  content: "";
  position: absolute;
  left: 0; right: 0; top: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, #ff5a52 20%, #fff 50%, #ff5a52 80%, transparent);
  box-shadow: 0 0 26px 7px rgba(229,57,53,.6);
  pointer-events: none;
}

.banniere > * { position: relative; z-index: 2; }
.banniere h1 { color: #fff; margin-bottom: var(--e-3); }
.banniere p { color: rgba(255,255,255,.85); font-size: var(--fs-lg); max-width: 64ch; margin-inline: auto; }

/* Portfolio : garde une photo, c'est la page qui montre le travail */
.banniere--portfolio {
  background-image:
    linear-gradient(120deg, rgba(11,11,14,.90), rgba(11,11,14,.70)),
    url("../img/realisations/realisation-18.jpg");
}

.fil-ariane { font-size: var(--fs-xs); color: rgba(255,255,255,.65); margin-bottom: var(--e-4); }
.fil-ariane a { color: rgba(255,255,255,.85); }
.fil-ariane a:hover { color: var(--accent-400); }

/* --------------------------------------------------------------------------
   15. Accordéon FAQ
   -------------------------------------------------------------------------- */
.accordeon { border: 1px solid var(--c-bordure); border-radius: var(--rayon); overflow: hidden; background: #fff; }
.accordeon__item + .accordeon__item { border-top: 1px solid var(--c-bordure); }
.accordeon__bouton {
  width: 100%; text-align: left; background: none; border: 0; cursor: pointer;
  padding: var(--e-4) var(--e-5);
  font-family: var(--font-corps); font-size: var(--fs-base); font-weight: 600; color: var(--noir-900);
  display: flex; align-items: center; justify-content: space-between; gap: var(--e-4);
  transition: background var(--transition);
}
.accordeon__bouton:hover { background: var(--gris-50); }
.accordeon__bouton::after {
  content: "+"; font-size: 1.5rem; color: var(--accent-500); line-height: 1; flex-shrink: 0;
  transition: transform var(--transition);
}
.accordeon__bouton[aria-expanded="true"]::after { transform: rotate(45deg); }
.accordeon__panneau { display: none; padding: 0 var(--e-5) var(--e-5); color: var(--c-texte-doux); font-size: var(--fs-sm); }
.accordeon__panneau.est-ouvert { display: block; }

/* --------------------------------------------------------------------------
   16. Contenu mixte (texte + photo)
   -------------------------------------------------------------------------- */
.duo { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 5vw, 4rem); align-items: center; }
.duo__photo {
  border-radius: var(--rayon-lg);
  overflow: hidden;
  box-shadow: var(--ombre-lg);
  aspect-ratio: 4 / 3;
}
.duo__photo img { width: 100%; height: 100%; object-fit: cover; }

.liste-atouts { list-style: none; padding: 0; margin: var(--e-5) 0 0; display: grid; gap: var(--e-3); }
.liste-atouts li { display: flex; gap: var(--e-3); margin: 0; font-size: var(--fs-sm); color: var(--c-texte-doux); }
.liste-atouts svg { color: var(--succes); flex-shrink: 0; margin-top: .25rem; }

/* --------------------------------------------------------------------------
   17. Pied de page
   -------------------------------------------------------------------------- */
.pied { background: var(--noir-900); color: rgba(255,255,255,.68); font-size: var(--fs-sm); }
.pied__grille {
  display: grid;
  grid-template-columns: 1.6fr 1.1fr 1fr 1.3fr;
  gap: var(--e-6);
  padding-block: clamp(3rem, 6vw, 4.5rem);
}
.pied h4 {
  color: #fff; font-size: var(--fs-sm); text-transform: uppercase;
  letter-spacing: .1em; margin-bottom: var(--e-4);
}
.pied a { color: rgba(255,255,255,.68); }
.pied a:hover { color: var(--accent-400); }
.pied ul { list-style: none; padding: 0; margin: 0; }
.pied li { margin-bottom: .55rem; }
.pied .logo__nom { color: #fff; }
.pied__desc { margin-top: var(--e-4); max-width: 40ch; }

.reseaux { display: flex; gap: var(--e-3); margin-top: var(--e-5); }
.reseaux a {
  width: 40px; height: 40px; border-radius: 50%;
  background: rgba(255,255,255,.08); display: grid; place-items: center;
  color: #fff; transition: all var(--transition);
}
.reseaux a:hover { background: var(--accent-500); color: #fff; transform: translateY(-2px); }

.pied__bas {
  border-top: 1px solid rgba(255,255,255,.1);
  padding-block: var(--e-4);
  display: flex; flex-wrap: wrap; gap: var(--e-3);
  align-items: center; justify-content: space-between;
  font-size: var(--fs-xs);
}

/* --------------------------------------------------------------------------
   18. Bouton flottant d'appel (mobile)
   -------------------------------------------------------------------------- */
.appel-flottant {
  display: none;
  position: fixed; left: var(--e-4); right: var(--e-4);
  /* Respecte la barre du navigateur sur iPhone */
  bottom: calc(var(--e-4) + env(safe-area-inset-bottom, 0px));
  z-index: 90;
  box-shadow: var(--ombre-xl);
  transition: transform .28s ease, opacity .28s ease;
}
/* S'efface quand on remplit le formulaire, pour ne rien masquer */
.appel-flottant.est-masque {
  transform: translateY(140%);
  opacity: 0;
  pointer-events: none;
}

/* --------------------------------------------------------------------------
   19. Animations d'apparition
   -------------------------------------------------------------------------- */
.anim { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.anim.est-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
  .anim { opacity: 1; transform: none; }
}

/* --------------------------------------------------------------------------
   20. Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .duo { grid-template-columns: 1fr; }
  .pied__grille { grid-template-columns: 1fr 1fr; }
  /* Tablette : logo légèrement réduit pour laisser respirer le menu */
  :root { --hauteur-entete: 112px; }
  .logo img { height: 88px; }
}

@media (max-width: 860px) {
  .bascule-menu { display: grid; }
  .nav {
    position: fixed;
    inset: var(--hauteur-entete) 0 auto 0;
    background: #17171b;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: var(--e-4) var(--e-5) var(--e-6);
    border-bottom: 1px solid #2b2b34;
    box-shadow: 0 18px 32px -12px rgba(0,0,0,.7);
    transform: translateY(-130%);
    transition: transform var(--transition);
    max-height: calc(100vh - var(--hauteur-entete));
    overflow-y: auto;
  }
  .nav.est-ouverte { transform: translateY(0); }
  .nav__liste { flex-direction: column; align-items: stretch; gap: 0; }
  .nav__lien { padding: .85rem .5rem; border-bottom: 1px solid rgba(255,255,255,.08); border-radius: 0; }
  .nav__lien.est-actif::after { display: none; }
  .nav__lien.est-actif { color: var(--accent-400); }
  .nav .btn { margin-top: var(--e-4); }
  .barre-info__masquable { display: none; }
  /* Mobile : en-tête compact pour ne pas manger l'écran */
  :root { --hauteur-entete: 84px; }
  .logo img { height: 62px; }
}

@media (max-width: 640px) {
  :root { --fs-base: 1rem; --hauteur-entete: 76px; }
  .logo img { height: 54px; }
  /* Bloc fichiers : icône au-dessus du texte sur petit écran */
  .bloc-fichiers { flex-direction: column; padding: var(--e-4); }
  .bloc-fichiers .btn { width: 100%; }

  /* L'en-tête se cache au défilement vers le bas pour libérer l'écran */
  .entete { transition: transform .3s ease, box-shadow var(--transition); }
  .entete.est-cachee { transform: translateY(-100%); }

  /* Marge suffisante pour que le bouton flottant ne masque rien */
  body { padding-bottom: calc(92px + env(safe-area-inset-bottom, 0px)); }

  /* Champs plus hauts : plus faciles à toucher, et pas de zoom auto sur iPhone */
  .champ input, .champ select, .champ textarea {
    font-size: 16px;
    padding: .9rem 1rem;
  }
  .champ textarea { min-height: 120px; }

  /* Espace supplémentaire sous le bouton d'envoi */
  #formulaire-contact { padding-bottom: var(--e-5); }

  /* Bannière plus courte sur mobile : le formulaire apparaît plus vite */
  .banniere { padding-block: clamp(2rem, 8vw, 2.75rem); }
  .banniere p { font-size: var(--fs-base); }
  .slogan-bande { padding-block: var(--e-3); }
  .slogan-bande p { font-size: 1.05rem; }
  /* Sections resserrées pour moins de défilement */
  .section { padding-block: clamp(2.25rem, 7vw, 3rem); }
  .champ--double { grid-template-columns: 1fr; }
  .pied__grille { grid-template-columns: 1fr; }
  .pied__bas { flex-direction: column; align-items: flex-start; }
  .groupe-btn .btn { width: 100%; }
  .appel-flottant { display: flex; }
  body { padding-bottom: 84px; }
  .galerie { grid-template-columns: 1fr 1fr; gap: var(--e-3); }
  .visionneuse__prec, .visionneuse__suiv { width: 40px; height: 40px; }
  .visionneuse__prec { left: var(--e-2); }
  .visionneuse__suiv { right: var(--e-2); }
}

/* --------------------------------------------------------------------------
   21. Impression
   -------------------------------------------------------------------------- */
@media print {
  .entete, .barre-info, .pied, .appel-flottant, .cta, .btn, .visionneuse { display: none !important; }
  body { color: #000; font-size: 12pt; padding: 0; }
  .anim { opacity: 1; transform: none; }
}