/* =================================================================
   DESCÔTEAUX ACOUSTIQUE — Feuille de style principale
   -----------------------------------------------------------------
   Tout est piloté par les variables CSS ci-dessous (section :root).
   Pour changer une couleur, une police ou un espacement sur TOUT le
   site, modifiez la valeur ici — pas besoin de chercher ailleurs.
   ================================================================= */

/* -----------------------------------------------------------------
   1. VARIABLES DE MARQUE  (modifiez ici en priorité)
   ----------------------------------------------------------------- */
:root {
  /* Couleurs de marque (tirées du logo : rouge + charbon + blanc) */
  --red:          #E0362C;   /* Accent principal */
  --red-600:      #C92A20;   /* Survol boutons */
  --red-700:      #A8211A;   /* Survol foncé */
  --red-soft:     #fdecea;   /* Fond rouge très pâle */

  --charcoal:     #34302F;   /* Charbon du logo (en-tête, pied de page) */
  --charcoal-deep:#211E1D;   /* Charbon profond (sections sombres) */
  --charcoal-soft:#403A38;   /* Charbon adouci (cartes sombres) */
  --ink:          #1A1817;   /* Presque noir */

  --white:        #FFFFFF;
  --paper:        #F8F7F5;   /* Blanc cassé (fond de section) */
  --cloud:        #EFEBE8;   /* Gris très pâle */
  --line:         #E4DFDB;   /* Bordures fines */
  --muted:        #6E6864;   /* Texte secondaire */
  --text:         #2A2725;   /* Texte courant sur fond clair */
  --text-invert:  #EFEBE8;   /* Texte sur fond sombre */

  /* Typographie */
  --font-head: 'Urbanist', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;

  /* Rythme et formes */
  --container: 1200px;
  --radius:    14px;
  --radius-sm: 9px;
  --radius-lg: 22px;

  --shadow-sm: 0 1px 2px rgba(26,24,23,.06), 0 2px 8px rgba(26,24,23,.05);
  --shadow:    0 10px 30px -12px rgba(26,24,23,.18);
  --shadow-lg: 0 28px 60px -22px rgba(26,24,23,.32);

  --ease: cubic-bezier(.22,.61,.36,1);
  --t-fast: .18s var(--ease);
  --t:      .32s var(--ease);
}

/* -----------------------------------------------------------------
   2. RESET / BASE
   ----------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-body);
  color: var(--text);
  background: var(--white);
  line-height: 1.65;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, svg, picture { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; padding: 0; }
button, input, textarea, select { font: inherit; color: inherit; }

h1, h2, h3, h4 {
  font-family: var(--font-head);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -.02em;
  color: var(--ink);
}

h1 { font-size: clamp(2.3rem, 5.2vw, 4rem); }
h2 { font-size: clamp(1.9rem, 3.6vw, 2.9rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.55rem); }

p { color: var(--text); }
:focus-visible { outline: 3px solid var(--red); outline-offset: 3px; border-radius: 4px; }

::selection { background: var(--red); color: #fff; }

/* Lien d'évitement (accessibilité clavier) */
.skip-link { position: absolute; left: -999px; top: 0; z-index: 200; background: var(--red); color: #fff; padding: .8rem 1.2rem; border-radius: 0 0 10px 0; font-family: var(--font-head); font-weight: 700; }
.skip-link:focus { left: 0; }

/* -----------------------------------------------------------------
   3. UTILITAIRES DE MISE EN PAGE
   ----------------------------------------------------------------- */
.container { width: min(100% - 2.5rem, var(--container)); margin-inline: auto; }
.container--narrow { width: min(100% - 2.5rem, 820px); margin-inline: auto; }

.section { padding: clamp(4rem, 8vw, 7rem) 0; }
.section--paper { background: var(--paper); }
.section--cloud { background: var(--cloud); }
.section--dark  { background: var(--charcoal-deep); color: var(--text-invert); }
.section--dark h1, .section--dark h2, .section--dark h3 { color: #fff; }

.center { text-align: center; }
.mt-1 { margin-top: .75rem; } .mt-2 { margin-top: 1.5rem; } .mt-3 { margin-top: 2.5rem; }

/* En-tête de section : petite étiquette + grand titre */
.kicker {
  display: inline-flex; align-items: center; gap: .55rem;
  font-family: var(--font-head); font-weight: 700; font-size: .82rem;
  letter-spacing: .14em; text-transform: uppercase; color: var(--red);
  margin-bottom: 1rem;
}
.kicker::before { content: ""; width: 26px; height: 2px; background: var(--red); display: inline-block; }
.section--dark .kicker { color: #ff7d72; }

.section-head { max-width: 720px; }
.section-head.center { margin-inline: auto; }
.lead { font-size: 1.15rem; color: var(--muted); }
.section--dark .lead { color: #c8c2bd; }

/* -----------------------------------------------------------------
   4. BOUTONS
   ----------------------------------------------------------------- */
.btn {
  --btn-bg: var(--red); --btn-fg: #fff;
  display: inline-flex; align-items: center; justify-content: center; gap: .6rem;
  background: var(--btn-bg); color: var(--btn-fg);
  font-family: var(--font-head); font-weight: 700; font-size: 1rem;
  padding: .92rem 1.6rem; border: 2px solid transparent; border-radius: 999px;
  cursor: pointer; transition: transform var(--t-fast), background var(--t-fast), box-shadow var(--t-fast);
  box-shadow: 0 8px 20px -10px rgba(224,54,44,.7);
  white-space: nowrap;
}
.btn:hover { background: var(--red-600); transform: translateY(-2px); box-shadow: 0 14px 26px -12px rgba(224,54,44,.85); }
.btn:active { transform: translateY(0); }
.btn .ico { width: 1.05em; height: 1.05em; }

.btn--ghost { --btn-bg: transparent; --btn-fg: var(--ink); border-color: var(--line); box-shadow: none; }
.btn--ghost:hover { background: var(--ink); --btn-fg: #fff; border-color: var(--ink); }

.btn--light { --btn-bg: #fff; --btn-fg: var(--ink); box-shadow: var(--shadow); }
.btn--light:hover { --btn-bg: #fff; transform: translateY(-2px); }

.btn--outline-light { --btn-bg: transparent; --btn-fg: #fff; border-color: rgba(255,255,255,.4); box-shadow: none; }
.btn--outline-light:hover { background: rgba(255,255,255,.12); border-color: #fff; }

.btn--lg { padding: 1.05rem 2rem; font-size: 1.08rem; }
.btn-row { display: flex; flex-wrap: wrap; gap: .85rem; }

/* Lien fléché */
.link-arrow { display: inline-flex; align-items: center; gap: .4rem; font-family: var(--font-head); font-weight: 700; color: var(--red); }
.link-arrow svg { transition: transform var(--t-fast); }
.link-arrow:hover svg { transform: translateX(4px); }

/* -----------------------------------------------------------------
   5. EN-TÊTE / NAVIGATION
   ----------------------------------------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: var(--charcoal);
  border-bottom: 1px solid rgba(255,255,255,.07);
  transition: background var(--t), box-shadow var(--t), padding var(--t);
}
.site-header.is-scrolled {
  background: rgba(33,30,29,.86);
  -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
  box-shadow: 0 10px 30px -18px rgba(0,0,0,.8);
}
.nav { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; padding: .7rem 0; }
.brand { display: flex; align-items: center; gap: .7rem; flex-shrink: 0; }
.brand img { height: 46px; width: auto; transition: height var(--t); }
.is-scrolled .brand img { height: 40px; }

.nav-links { display: flex; align-items: center; gap: .35rem; }
.nav-links a {
  color: var(--text-invert); font-family: var(--font-head); font-weight: 600; font-size: .98rem;
  padding: .55rem .85rem; border-radius: 999px; position: relative; transition: color var(--t-fast), background var(--t-fast);
}
.nav-links a:hover { color: #fff; background: rgba(255,255,255,.08); }
.nav-links a.is-active { color: #fff; }
.nav-links a.is-active::after {
  content: ""; position: absolute; left: .85rem; right: .85rem; bottom: .28rem; height: 2px; background: var(--red); border-radius: 2px;
}
.nav-cta { display: flex; align-items: center; gap: .9rem; }
.nav-phone { display: inline-flex; align-items: center; gap: .45rem; color: var(--text-invert); font-family: var(--font-head); font-weight: 700; white-space: nowrap; }
.nav-phone:hover { color: #fff; }
.nav-phone svg { color: var(--red); }

/* Bouton hamburger */
.nav-toggle {
  display: none; background: transparent; border: 0; cursor: pointer; padding: .5rem;
  width: 46px; height: 46px; border-radius: 10px;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content: ""; display: block; width: 24px; height: 2.5px; background: #fff; border-radius: 3px; transition: transform var(--t), opacity var(--t-fast);
}
.nav-toggle span { position: relative; }
.nav-toggle span::before { position: absolute; top: -7px; } .nav-toggle span::after { position: absolute; top: 7px; }
.nav-toggle[aria-expanded="true"] span { background: transparent; }
.nav-toggle[aria-expanded="true"] span::before { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after  { transform: translateY(-7px) rotate(-45deg); }

/* -----------------------------------------------------------------
   6. HERO
   ----------------------------------------------------------------- */
.hero {
  position: relative; background: var(--charcoal-deep); color: var(--text-invert);
  overflow: hidden; isolation: isolate;
}
.hero::before { /* motif points "panneau acoustique" */
  content: ""; position: absolute; inset: 0; z-index: -1; opacity: .5;
  background-image: radial-gradient(rgba(255,255,255,.10) 1.4px, transparent 1.6px);
  background-size: 26px 26px;
  -webkit-mask-image: radial-gradient(120% 90% at 78% 18%, #000 35%, transparent 72%);
  mask-image: radial-gradient(120% 90% at 78% 18%, #000 35%, transparent 72%);
}
.hero::after { /* halo rouge */
  content: ""; position: absolute; z-index: -1; width: 60vw; height: 60vw; max-width: 720px; max-height: 720px;
  right: -12%; top: -22%; border-radius: 50%;
  background: radial-gradient(circle, rgba(224,54,44,.28), transparent 62%); filter: blur(8px);
}
.hero-inner { display: grid; grid-template-columns: 1.15fr .85fr; gap: 3rem; align-items: center; padding: clamp(3.5rem,7vw,6rem) 0 clamp(4rem,8vw,6.5rem); }
.hero h1 { color: #fff; }
.hero h1 .accent { color: var(--red); }
.hero-sub { font-size: 1.2rem; color: #c9c3be; margin-top: 1.4rem; max-width: 36ch; }
.hero .btn-row { margin-top: 2.2rem; }
.hero-trust { display: flex; flex-wrap: wrap; gap: 1.4rem 2rem; margin-top: 2.6rem; padding-top: 1.8rem; border-top: 1px solid rgba(255,255,255,.12); }
.hero-trust .item { display: flex; align-items: center; gap: .6rem; font-size: .95rem; color: #d7d1cc; }
.hero-trust .item svg { color: var(--red); flex-shrink: 0; }

/* Carte flottante du hero (onde sonore) */
.hero-card {
  background: linear-gradient(160deg, var(--charcoal-soft), var(--charcoal));
  border: 1px solid rgba(255,255,255,.1); border-radius: var(--radius-lg);
  padding: 1.8rem; box-shadow: var(--shadow-lg); position: relative;
}
.hero-card h3 { color: #fff; font-size: 1.15rem; }
.hero-card .eq { display: flex; align-items: flex-end; gap: 5px; height: 76px; margin: 1.3rem 0; }
.hero-card .eq i { flex: 1; background: linear-gradient(var(--red), var(--red-700)); border-radius: 3px; height: 35%; transform-origin: bottom; animation: eq 1.2s ease-in-out infinite alternate; }
.hero-card .eq i:nth-child(2){animation-delay:.15s} .hero-card .eq i:nth-child(3){animation-delay:.35s}
.hero-card .eq i:nth-child(4){animation-delay:.5s} .hero-card .eq i:nth-child(5){animation-delay:.2s}
.hero-card .eq i:nth-child(6){animation-delay:.6s} .hero-card .eq i:nth-child(7){animation-delay:.1s}
.hero-card .eq i:nth-child(8){animation-delay:.45s} .hero-card .eq i:nth-child(9){animation-delay:.3s}
.hero-card .eq i:nth-child(10){animation-delay:.55s} .hero-card .eq i:nth-child(11){animation-delay:.25s}
.hero-card .eq i:nth-child(12){animation-delay:.4s}
@keyframes eq { from { height: 20%; opacity: .65; } to { height: 100%; opacity: 1; } }
.hero-card .metrics { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.hero-card .metric { background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.08); border-radius: var(--radius-sm); padding: .9rem 1rem; }
.hero-card .metric b { display: block; font-family: var(--font-head); font-size: 1.7rem; color: #fff; line-height: 1; }
.hero-card .metric span { font-size: .82rem; color: #b3aca7; }

/* Bandeau "marquee" des services sous le hero */
.marquee { background: var(--red); color: #fff; overflow: hidden; }
.marquee-track { display: flex; gap: 3rem; padding: .85rem 0; white-space: nowrap; animation: marquee 26s linear infinite; font-family: var(--font-head); font-weight: 700; letter-spacing: .02em; }
.marquee-track span { display: inline-flex; align-items: center; gap: 3rem; opacity: .96; }
.marquee-track span::after { content: "◆"; font-size: .7em; opacity: .7; }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* -----------------------------------------------------------------
   7. CARTES (services, atouts, projets, témoignages)
   ----------------------------------------------------------------- */
.grid { display: grid; gap: 1.5rem; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.9rem; transition: transform var(--t), box-shadow var(--t), border-color var(--t);
  position: relative; height: 100%;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }

.card-ico {
  width: 56px; height: 56px; border-radius: 14px; display: grid; place-items: center;
  background: var(--red-soft); color: var(--red); margin-bottom: 1.2rem;
}
.card-ico svg { width: 28px; height: 28px; }
.card h3 { margin-bottom: .5rem; }
.card p { color: var(--muted); font-size: .98rem; }
.card ul.ticks { margin-top: 1rem; display: grid; gap: .5rem; }
.card ul.ticks li { position: relative; padding-left: 1.6rem; font-size: .95rem; color: var(--text); }
.card ul.ticks li::before {
  content: ""; position: absolute; left: 0; top: .35em; width: 16px; height: 16px;
  background: var(--red); -webkit-mask: var(--check) center/contain no-repeat; mask: var(--check) center/contain no-repeat;
}
:root { --check: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='black' d='M9 16.2l-3.5-3.5L4 14.2 9 19.2 20 8.2l-1.5-1.5z'/%3E%3C/svg%3E"); }

/* Numéro d'étape sur certaines cartes */
.card--step { padding-top: 2.4rem; }
.card .step-num {
  position: absolute; top: 1.4rem; right: 1.6rem; font-family: var(--font-head); font-weight: 800;
  font-size: 2.4rem; color: var(--cloud); line-height: 1;
}

/* Atout horizontal (icône + texte) */
.feature { display: flex; gap: 1rem; align-items: flex-start; }
.feature .card-ico { margin-bottom: 0; flex-shrink: 0; width: 48px; height: 48px; }
.feature h3 { font-size: 1.18rem; }
.feature p { margin-top: .25rem; }

/* -----------------------------------------------------------------
   8. PROJETS / GALERIE
   ----------------------------------------------------------------- */
.project {
  position: relative; border-radius: var(--radius); overflow: hidden; min-height: 300px;
  display: flex; align-items: flex-end; color: #fff; isolation: isolate;
  border: 1px solid var(--line);
}
.project-visual { position: absolute; inset: 0; z-index: -2; }
.project::after { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(to top, rgba(26,24,23,.86) 8%, rgba(26,24,23,.15) 70%); }
.project-body { padding: 1.5rem 1.6rem; width: 100%; }
.project .tag {
  display: inline-block; font-family: var(--font-head); font-weight: 700; font-size: .72rem; letter-spacing: .1em;
  text-transform: uppercase; background: var(--red); color: #fff; padding: .28rem .65rem; border-radius: 999px; margin-bottom: .7rem;
}
.project h3 { color: #fff; font-size: 1.25rem; }
.project p { color: rgba(255,255,255,.82); font-size: .92rem; margin-top: .3rem; }
.project .placeholder-note {
  position: absolute; top: .9rem; right: .9rem; z-index: 1; background: rgba(0,0,0,.5);
  color: #fff; font-size: .68rem; padding: .25rem .55rem; border-radius: 6px; letter-spacing: .03em;
}
.project img.project-visual { object-fit: cover; height: 100%; width: 100%; }

/* Barre de filtre des réalisations */
.filter-bar { display: flex; flex-wrap: wrap; gap: .6rem; justify-content: center; margin-bottom: 2.4rem; }
.filter-bar button {
  background: #fff; border: 1.5px solid var(--line); color: var(--text); cursor: pointer;
  font-family: var(--font-head); font-weight: 600; font-size: .92rem; padding: .55rem 1.1rem; border-radius: 999px;
  transition: all var(--t-fast);
}
.filter-bar button:hover { border-color: var(--ink); }
.filter-bar button.is-active { background: var(--red); border-color: var(--red); color: #fff; box-shadow: 0 8px 18px -10px rgba(224,54,44,.8); }
.project { transition: transform var(--t), box-shadow var(--t); }
.project:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.project:hover .project-visual { transform: scale(1.05); }
.project-visual { transition: transform .6s var(--ease); }

/* -----------------------------------------------------------------
   9. STATISTIQUES
   ----------------------------------------------------------------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
.stat { text-align: center; padding: 1rem; }
.stat b { display: block; font-family: var(--font-head); font-weight: 800; font-size: clamp(2.4rem, 5vw, 3.4rem); color: var(--red); line-height: 1; letter-spacing: -.03em; }
.stat span { display: block; margin-top: .5rem; color: var(--muted); font-weight: 500; }
.section--dark .stat span { color: #c0bab5; }

/* -----------------------------------------------------------------
   10. SPLIT (texte + visuel)
   ----------------------------------------------------------------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 5vw, 4.5rem); align-items: center; }
.split--reverse .split-media { order: -1; }
.media-frame {
  border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); position: relative;
  background: linear-gradient(160deg, var(--charcoal-soft), var(--charcoal-deep)); min-height: 340px;
}
.media-frame .badge {
  position: absolute; left: 1.2rem; bottom: 1.2rem; background: #fff; color: var(--ink);
  border-radius: var(--radius); padding: 1rem 1.2rem; box-shadow: var(--shadow); display: flex; gap: .8rem; align-items: center;
}
.media-frame .badge b { font-family: var(--font-head); font-size: 1.5rem; color: var(--red); }
.media-frame .badge span { font-size: .85rem; color: var(--muted); line-height: 1.25; }

/* -----------------------------------------------------------------
   11. FAQ (accordéon)
   ----------------------------------------------------------------- */
.faq { max-width: 820px; margin-inline: auto; }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-q {
  width: 100%; text-align: left; background: transparent; border: 0; cursor: pointer;
  padding: 1.4rem .5rem; display: flex; justify-content: space-between; align-items: center; gap: 1rem;
  font-family: var(--font-head); font-weight: 700; font-size: 1.12rem; color: var(--ink);
}
.faq-q:hover { color: var(--red); }
.faq-q .chev { width: 24px; height: 24px; flex-shrink: 0; color: var(--red); transition: transform var(--t); }
.faq-q[aria-expanded="true"] .chev { transform: rotate(180deg); }
.faq-a { overflow: hidden; max-height: 0; transition: max-height var(--t); }
.faq-a-inner { padding: 0 .5rem 1.4rem; color: var(--muted); }

/* -----------------------------------------------------------------
   12. TÉMOIGNAGES
   ----------------------------------------------------------------- */
.quote-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 2rem; height: 100%; position: relative; }
.quote-card .mark { font-family: Georgia, serif; font-size: 4rem; line-height: .6; color: var(--red); opacity: .25; }
.quote-card p { font-size: 1.05rem; color: var(--text); margin: .4rem 0 1.3rem; }
.quote-card .who { display: flex; align-items: center; gap: .8rem; }
.quote-card .avatar { width: 44px; height: 44px; border-radius: 50%; background: var(--charcoal); color: #fff; display: grid; place-items: center; font-family: var(--font-head); font-weight: 800; }
.quote-card .who b { display: block; font-family: var(--font-head); }
.quote-card .who span { font-size: .85rem; color: var(--muted); }
.stars { color: var(--red); letter-spacing: 2px; }

/* -----------------------------------------------------------------
   13. BANDE D'APPEL À L'ACTION (CTA)
   ----------------------------------------------------------------- */
.cta-band { position: relative; background: var(--red); color: #fff; overflow: hidden; isolation: isolate; }
.cta-band::before { content: ""; position: absolute; inset: 0; z-index: -1; opacity: .25;
  background-image: radial-gradient(rgba(255,255,255,.5) 1.3px, transparent 1.5px); background-size: 24px 24px;
  -webkit-mask-image: linear-gradient(105deg, #000, transparent 70%); mask-image: linear-gradient(105deg, #000, transparent 70%); }
.cta-band .container { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 2rem; padding: clamp(2.8rem,5vw,4rem) 0; }
.cta-band h2 { color: #fff; max-width: 22ch; }
.cta-band p { color: rgba(255,255,255,.92); margin-top: .6rem; max-width: 46ch; }

/* -----------------------------------------------------------------
   14. FORMULAIRE DE CONTACT
   ----------------------------------------------------------------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: clamp(2rem,5vw,4rem); align-items: start; }
.info-list { display: grid; gap: 1.2rem; margin-top: 1.8rem; }
.info-list .row { display: flex; gap: 1rem; align-items: flex-start; }
.info-list .ic { width: 46px; height: 46px; border-radius: 12px; background: var(--red-soft); color: var(--red); display: grid; place-items: center; flex-shrink: 0; }
.info-list .row b { font-family: var(--font-head); display: block; }
.info-list .row a, .info-list .row span { color: var(--muted); }
.info-list .row a:hover { color: var(--red); }

.form-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: clamp(1.5rem, 3vw, 2.4rem); box-shadow: var(--shadow); }
.field { margin-bottom: 1.1rem; }
.field label { display: block; font-family: var(--font-head); font-weight: 600; font-size: .92rem; margin-bottom: .4rem; }
.field label .req { color: var(--red); }
.field input, .field select, .field textarea {
  width: 100%; padding: .85rem 1rem; border: 1.5px solid var(--line); border-radius: var(--radius-sm);
  background: var(--paper); transition: border-color var(--t-fast), box-shadow var(--t-fast);
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--red); box-shadow: 0 0 0 4px rgba(224,54,44,.12); background: #fff; }
.field textarea { min-height: 130px; resize: vertical; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.1rem; }
.field .err { color: var(--red); font-size: .82rem; margin-top: .3rem; display: none; }
.field.invalid .err { display: block; }
.field.invalid input, .field.invalid select, .field.invalid textarea { border-color: var(--red); }
.form-note { font-size: .85rem; color: var(--muted); margin-top: .4rem; }
.form-success {
  display: none; background: #ecf7ee; border: 1.5px solid #b7e3c0; color: #1d6b34;
  border-radius: var(--radius); padding: 1rem 1.2rem; margin-bottom: 1.2rem; font-weight: 500;
}
.form-success.show { display: block; }

/* Carte à chargement sur clic — aucun témoin tiers tant que le visiteur n'a pas cliqué */
.carte-consent { margin-top: 1.8rem; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--paper); }
.carte-consent .carte-apercu svg { display: block; width: 100%; height: 150px; }
.carte-consent .carte-corps { padding: 1.1rem 1.3rem 1.3rem; }
.carte-consent .carte-corps p { font-size: .95rem; }
.carte-consent .carte-corps .form-note { margin: .6rem 0 1rem; }
.carte-consent iframe { width: 100%; display: block; border: 0; }

/* -----------------------------------------------------------------
   15. PIED DE PAGE
   ----------------------------------------------------------------- */
.site-footer { background: var(--charcoal-deep); color: #b8b2ad; padding-top: clamp(3rem,6vw,4.5rem); }
.footer-top { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 2rem; padding-bottom: 2.8rem; border-bottom: 1px solid rgba(255,255,255,.1); }
.footer-brand img { height: 54px; margin-bottom: 1.1rem; }
.footer-brand p { color: #9a948f; font-size: .95rem; max-width: 34ch; }
.footer-col h4 { color: #fff; font-size: .85rem; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 1.1rem; }
.footer-col ul { display: grid; gap: .6rem; }
.footer-col a, .footer-col span { color: #b8b2ad; font-size: .96rem; transition: color var(--t-fast); }
.footer-col a:hover { color: #fff; }
.footer-col .line { display: flex; gap: .6rem; align-items: flex-start; }
.footer-col .line svg { color: var(--red); flex-shrink: 0; margin-top: .15rem; }
.social { display: flex; gap: .7rem; margin-top: 1.2rem; }
.social a { width: 40px; height: 40px; border-radius: 10px; background: rgba(255,255,255,.08); display: grid; place-items: center; color: #fff; transition: background var(--t-fast), transform var(--t-fast); }
.social a:hover { background: var(--red); transform: translateY(-2px); }
.footer-zones { padding: 1.2rem 0 .2rem; border-top: 1px solid rgba(255,255,255,.08); font-size: .85rem; color: #8b857f; line-height: 1.7; }
.footer-zones b { color: #c8c2bd; font-weight: 600; }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; padding: 1.6rem 0; font-size: .85rem; color: #8b857f; }
.footer-bottom a:hover { color: #fff; }

/* -----------------------------------------------------------------
   16. FIL D'ARIANE / EN-TÊTE DE PAGE INTERNE
   ----------------------------------------------------------------- */
.page-hero { position: relative; background: var(--charcoal-deep); color: #fff; padding: clamp(3rem,6vw,4.5rem) 0 clamp(3.2rem,6vw,4.5rem); overflow: hidden; isolation: isolate; }
.page-hero::before { content: ""; position: absolute; inset: 0; z-index: -1; opacity: .4;
  background-image: radial-gradient(rgba(255,255,255,.1) 1.3px, transparent 1.5px); background-size: 26px 26px;
  -webkit-mask-image: radial-gradient(110% 80% at 85% 10%, #000 30%, transparent 70%); mask-image: radial-gradient(110% 80% at 85% 10%, #000 30%, transparent 70%); }
.page-hero h1 { color: #fff; max-width: 18ch; }
.page-hero p { color: #c9c3be; margin-top: 1rem; max-width: 54ch; font-size: 1.12rem; }
.crumbs { font-size: .88rem; color: #948e89; margin-bottom: 1rem; display: flex; gap: .5rem; align-items: center; }
.crumbs a:hover { color: #fff; }
.crumbs .sep { opacity: .5; }

/* Ligne du temps (page À propos) */
.timeline { position: relative; max-width: 760px; margin-inline: auto; padding-left: 2.2rem; }
.timeline::before { content: ""; position: absolute; left: 6px; top: 8px; bottom: 8px; width: 2px; background: var(--line); }
.tl-item { position: relative; padding-bottom: 2.2rem; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before { content: ""; position: absolute; left: -2.2rem; top: 4px; width: 14px; height: 14px; border-radius: 50%; background: var(--red); box-shadow: 0 0 0 4px var(--red-soft); }
.tl-item .yr { font-family: var(--font-head); font-weight: 800; color: var(--red); font-size: 1.05rem; }
.tl-item h3 { margin: .15rem 0 .4rem; font-size: 1.25rem; }
.tl-item p { color: var(--muted); }

/* Encadré « valeur » avec grosse initiale */
.value { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 1.8rem; height: 100%; }
.value .em { font-size: 2rem; line-height: 1; display: block; margin-bottom: .8rem; }
.value h3 { font-size: 1.2rem; margin-bottom: .4rem; }
.value p { color: var(--muted); font-size: .97rem; }

/* -----------------------------------------------------------------
   17. ANIMATIONS AU DÉFILEMENT
   ----------------------------------------------------------------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: .08s; }
.reveal[data-delay="2"] { transition-delay: .16s; }
.reveal[data-delay="3"] { transition-delay: .24s; }
.reveal[data-delay="4"] { transition-delay: .32s; }

/* -----------------------------------------------------------------
   18. RESPONSIVE
   ----------------------------------------------------------------- */
@media (max-width: 980px) {
  .hero-inner { grid-template-columns: 1fr; gap: 2rem; }
  .hero-card { max-width: 460px; }
  .split { grid-template-columns: 1fr; }
  .split--reverse .split-media { order: 0; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}

/* Tablette : le menu reste horizontal mais l'espace manque pour le bouton
   « Soumission gratuite ». On le masque et on resserre les liens, sinon
   l'en-tête déborde et crée un défilement horizontal. */
@media (max-width: 1040px) and (min-width: 761px) {
  .nav-cta .btn { display: none; }
  .nav-links a { padding: .5rem .6rem; font-size: .92rem; }
  .nav-links { gap: .1rem; }
}

@media (max-width: 760px) {
  body { font-size: 16px; }
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .nav-cta .nav-phone span { display: none; }
  .nav-cta .btn { display: none; }   /* le menu mobile contient déjà « Contact » */
  .nav-links {
    position: fixed; inset: 0 0 0 auto; width: min(82vw, 340px); flex-direction: column; align-items: stretch;
    background: var(--charcoal); padding: 5.5rem 1.4rem 2rem; gap: .3rem; transform: translateX(100%);
    transition: transform var(--t); box-shadow: var(--shadow-lg); overflow-y: auto;
  }
  .nav-links.open { transform: translateX(0); }
  .nav-links a { padding: .95rem 1rem; font-size: 1.08rem; border-radius: 10px; }
  .nav-links a.is-active::after { display: none; }
  .nav-links a.is-active { background: rgba(224,54,44,.18); color: #fff; }
  .nav-backdrop { position: fixed; inset: 0; background: rgba(0,0,0,.5); opacity: 0; visibility: hidden; transition: opacity var(--t); z-index: 90; }
  .nav-backdrop.show { opacity: 1; visibility: visible; }
  .grid-2, .grid-3, .grid-4, .stats { grid-template-columns: 1fr; }
  .field-row { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; gap: 2.2rem; }
  .stats { grid-template-columns: 1fr 1fr; }
  .cta-band .container { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 420px) { .stats { grid-template-columns: 1fr 1fr; } }

/* Accessibilité : réduire les animations si demandé */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; transition: none; }
}