/*
 * ============================================================
 *  Veyrat Plomberie Chauffage — Feuille de styles principale
 *  Site one-page — Up'Artisan
 * ============================================================
 *
 * ANALYSE DES RÉFÉRENCES DESIGN
 * --------------------------------
 * Sources traitées    : Aucune référence design fournie dans le brief.
 *                       Design entièrement généré à partir des directives
 *                       de la section 7 et du brief artisan.
 * Palette             : Définie à partir du brief :
 *                       bleu nuit (#1E3A5F), blanc (#FFFFFF),
 *                       cuivre/orange braise (#C4622D, #E08030),
 *                       fond chaleureux (#F5F0EB), texte foncé (#2C2C2C)
 * Typographie         : Oswald (titres — fort, industriel, fiable)
 *                       + Nunito (corps — chaleureux, lisible)
 * Structure / layout  : Hero pleine hauteur avec clip diagonal,
 *                       sections alternant fond clair / fond foncé,
 *                       grille services 3 col desktop / 1 col mobile,
 *                       galerie réalisations 3 col / 2 col / 1 col.
 * Ambiance générale   : Fiable, local, artisanal — univers plomberie-chauffage
 *                       montagnard ; chaleur du feu vs rigueur technique.
 * Mode appliqué       : — (aucune référence)
 * Décisions prises    : Clip-path diagonal en bas du hero pour dynamiser
 *                       la page ; bordure cuivre sur les cartes services ;
 *                       fond texturé subtil sur section À propos ;
 *                       badge RGE mis en avant dans la section services.
 */

/* ============================================================
   IMPORTS GOOGLE FONTS
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Oswald:wght@400;500;600;700&family=Nunito:wght@300;400;600;700&display=swap');

/* ============================================================
   VARIABLES CSS
   ============================================================ */
:root {
  --color-primary:       #1E3A5F;   /* bleu nuit */
  --color-primary-dark:  #0F2040;   /* bleu nuit profond */
  --color-primary-light: #2C5282;   /* bleu nuit clair */
  --color-accent:        #C4622D;   /* cuivre / orange braise */
  --color-accent-light:  #E08030;   /* orange braise vif */
  --color-white:         #FFFFFF;
  --color-bg:            #F5F0EB;   /* fond chaleureux ivoire */
  --color-bg-alt:        #EDE8E2;   /* fond légèrement plus sombre */
  --color-text:          #2C2C2C;
  --color-text-light:    #666666;
  --color-border:        #D4C8BB;

  --font-heading: 'Oswald', sans-serif;
  --font-body:    'Nunito', sans-serif;

  --radius:       6px;
  --radius-lg:    12px;
  --shadow-sm:    0 2px 8px rgba(30, 58, 95, 0.10);
  --shadow-md:    0 6px 24px rgba(30, 58, 95, 0.15);
  --shadow-lg:    0 12px 40px rgba(30, 58, 95, 0.20);

  --max-width:    1160px;
  --section-pad:  80px 0;
  --transition:   0.3s ease;
}

/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-white);
  line-height: 1.7;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

/* ============================================================
   TYPOGRAPHIE
   ============================================================ */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  line-height: 1.2;
  font-weight: 700;
}

h1 { font-size: clamp(2.4rem, 6vw, 4.5rem); letter-spacing: 0.02em; }
h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); letter-spacing: 0.01em; }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.6rem); }
h4 { font-size: 1.1rem; }

p { margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }

/* ============================================================
   UTILITAIRES
   ============================================================ */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section-label {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.section-title {
  color: var(--color-primary);
  margin-bottom: 16px;
}

.section-title--light {
  color: var(--color-white);
}

.section-intro {
  font-size: 1.05rem;
  color: var(--color-text-light);
  max-width: 600px;
  margin-bottom: 48px;
}

.section-intro--light {
  color: rgba(255, 255, 255, 0.75);
}

/* ============================================================
   BOUTONS
   ============================================================ */
.btn {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 14px 36px;
  border-radius: var(--radius);
  cursor: pointer;
  border: 2px solid transparent;
  transition: background var(--transition), color var(--transition),
              border-color var(--transition), transform var(--transition),
              box-shadow var(--transition);
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--primary {
  background: var(--color-accent);
  color: var(--color-white);
  border-color: var(--color-accent);
}

.btn--primary:hover {
  background: var(--color-accent-light);
  border-color: var(--color-accent-light);
}

.btn--outline {
  background: transparent;
  color: var(--color-white);
  border-color: var(--color-white);
}

.btn--outline:hover {
  background: var(--color-white);
  color: var(--color-primary);
}

/* ============================================================
   HEADER & NAVIGATION
   ============================================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  transition: background var(--transition), box-shadow var(--transition);
  padding: 20px 0;
}

.site-header.scrolled {
  background: var(--color-primary-dark);
  box-shadow: var(--shadow-md);
  padding: 12px 0;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logo / Nom entreprise */
.site-logo {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.site-logo__img {
  height: 48px;
  width: auto;
  display: block;
  object-fit: contain;
  filter: brightness(0) invert(1); /* rend le logo blanc sur fond sombre */
}

.site-logo__name {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.site-logo__sub {
  font-family: var(--font-body);
  font-size: 0.7rem;
  color: var(--color-accent-light);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 600;
}

/* Navigation principale */
.site-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.site-nav a {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.85);
  transition: color var(--transition);
  position: relative;
}

.site-nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent-light);
  transition: width var(--transition);
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--color-white);
}

.site-nav a:hover::after,
.site-nav a.active::after {
  width: 100%;
}

.site-nav .btn--outline {
  font-size: 0.85rem;
  padding: 10px 24px;
  margin-left: 8px;
}

/* Hamburger menu */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background:
    radial-gradient(ellipse 60% 60% at 85% 40%, rgba(196, 98, 45, 0.30) 0%, transparent 70%),
    linear-gradient(145deg, rgba(15, 32, 64, 0.88) 0%, rgba(30, 58, 95, 0.82) 50%, rgba(26, 51, 88, 0.88) 100%),
    url('images/hero-bg.jpg') center / cover no-repeat;
  clip-path: polygon(0 0, 100% 0, 100% 93%, 0 100%);
  padding: 120px 0 160px;
  overflow: hidden;
}

/* Motif de fond suggérant la tuyauterie */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 80%, rgba(196, 98, 45, 0.08) 0%, transparent 40%),
    linear-gradient(90deg, transparent 49.5%, rgba(255,255,255,0.03) 49.5%, rgba(255,255,255,0.03) 50.5%, transparent 50.5%),
    linear-gradient(0deg, transparent 49.5%, rgba(255,255,255,0.02) 49.5%, rgba(255,255,255,0.02) 50.5%, transparent 50.5%);
  background-size: auto, 80px 80px, 80px 80px;
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 720px;
  animation: heroFadeIn 0.9s ease both;
}

.hero__eyebrow {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-accent-light);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.hero__eyebrow::before {
  content: '';
  display: inline-block;
  width: 40px;
  height: 2px;
  background: var(--color-accent);
}

.hero__title {
  color: var(--color-white);
  margin-bottom: 16px;
  text-shadow: 0 2px 20px rgba(0,0,0,0.3);
}

.hero__title span {
  color: var(--color-accent-light);
}

.hero__tagline {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: rgba(255, 255, 255, 0.80);
  margin-bottom: 40px;
  max-width: 540px;
  font-weight: 400;
  line-height: 1.6;
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}

/* Badges héro */
.hero__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 48px;
  animation: heroFadeIn 1.1s 0.3s ease both;
}

.hero__badge {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 40px;
  padding: 8px 16px;
  font-size: 0.8rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.9);
  letter-spacing: 0.04em;
  backdrop-filter: blur(4px);
}

.hero__badge .badge-icon {
  width: 18px;
  height: 18px;
  fill: var(--color-accent-light);
  flex-shrink: 0;
}

/* ============================================================
   SECTION À PROPOS
   ============================================================ */
.about {
  padding: 100px 0 80px;
  background: var(--color-bg);
  position: relative;
}

/* Texture subtile en fond */
.about::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%23c4622d' fill-opacity='0.04'%3E%3Cpath d='M0 40L40 0H20L0 20M40 40V20L20 40'/%3E%3C/g%3E%3C/svg%3E");
  pointer-events: none;
}

.about .container {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about__image-area {
  position: relative;
}

.about__photo-placeholder {
  aspect-ratio: 4/5;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  color: rgba(255,255,255,0.5);
  font-size: 0.85rem;
  text-align: center;
  padding: 32px;
  box-shadow: var(--shadow-lg);
}

.about__photo-placeholder svg {
  width: 60px;
  height: 60px;
  opacity: 0.4;
}

/* Carte "Depuis 2007" qui chevauche la photo */
.about__since-card {
  position: absolute;
  bottom: -24px;
  right: -24px;
  background: var(--color-accent);
  color: var(--color-white);
  border-radius: var(--radius);
  padding: 20px 28px;
  text-align: center;
  box-shadow: var(--shadow-md);
}

.about__since-card .since-year {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1;
}

.about__since-card .since-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0.9;
  margin-top: 4px;
}

.about__text {
  max-width: 580px;
}

.about__body p {
  font-size: 1.05rem;
  color: var(--color-text);
  line-height: 1.8;
  margin-bottom: 1.2rem;
}

/* Certifications */
.about__certifs {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.certif-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius);
  padding: 10px 18px;
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.certif-badge--rge {
  background: var(--color-accent);
}

.certif-badge svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

/* ============================================================
   SECTION SERVICES
   ============================================================ */
.services {
  padding: var(--section-pad);
  background: var(--color-primary-dark);
  position: relative;
  overflow: hidden;
}

/* Cercle décoratif en fond */
.services::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(196, 98, 45, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-top: 3px solid var(--color-accent);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: background var(--transition), border-color var(--transition),
              transform var(--transition), box-shadow var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card:hover {
  background: rgba(255, 255, 255, 0.09);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-top-color: var(--color-accent-light);
}

.service-card__icon {
  width: 52px;
  height: 52px;
  background: rgba(196, 98, 45, 0.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  transition: background var(--transition);
}

.service-card:hover .service-card__icon {
  background: rgba(196, 98, 45, 0.3);
}

.service-card__icon svg {
  width: 26px;
  height: 26px;
  fill: var(--color-accent-light);
}

.service-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 10px;
  letter-spacing: 0.02em;
}

.service-card p {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.7;
  margin-bottom: 0;
}

/* Badge urgence */
.service-card--urgence {
  border-top-color: #E53E3E;
}

.urgence-tag {
  position: absolute;
  top: 16px;
  right: 16px;
  background: #E53E3E;
  color: white;
  font-family: var(--font-heading);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 20px;
}

/* Card RGE */
.services__rge-banner {
  margin-top: 40px;
  background: rgba(196, 98, 45, 0.15);
  border: 1px solid rgba(196, 98, 45, 0.3);
  border-radius: var(--radius-lg);
  padding: 24px 32px;
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.rge-banner__icon {
  width: 56px;
  height: 56px;
  background: var(--color-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.rge-banner__icon svg {
  width: 28px;
  height: 28px;
  fill: white;
}

.rge-banner__text h4 {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.rge-banner__text p {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.70);
  margin-bottom: 0;
}

/* ============================================================
   SECTION RÉALISATIONS
   ============================================================ */
.realisations {
  padding: var(--section-pad);
  background: var(--color-white);
}

.realisations__header {
  text-align: center;
  margin-bottom: 48px;
}

.realisations__header .section-intro {
  margin: 0 auto;
}

.realisations__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.real-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
  background: var(--color-bg-alt);
}

.real-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.real-card__image {
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, #2C5282 0%, #1E3A5F 100%);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.real-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.real-card:hover .real-card__image img {
  transform: scale(1.05);
}

.real-card__placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: rgba(255,255,255,0.4);
  font-size: 0.75rem;
  text-align: center;
  padding: 20px;
}

.real-card__placeholder svg {
  width: 36px;
  height: 36px;
  opacity: 0.5;
}

.real-card__body {
  padding: 20px;
}

.real-card__tag {
  font-family: var(--font-heading);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 6px;
}

.real-card__body h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.real-card__body p {
  font-size: 0.83rem;
  color: var(--color-text-light);
  margin-bottom: 0;
}

/* ============================================================
   SECTION TÉMOIGNAGES
   ============================================================ */
.temoignages {
  padding: var(--section-pad);
  background: var(--color-bg);
  position: relative;
  overflow: hidden;
}

.temoignages::before {
  content: '"';
  position: absolute;
  top: -40px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-heading);
  font-size: 20rem;
  color: rgba(30, 58, 95, 0.05);
  pointer-events: none;
  line-height: 1;
  font-weight: 700;
}

.temoignages__header {
  text-align: center;
  margin-bottom: 48px;
}

.temoignages__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  max-width: 900px;
  margin: 0 auto;
}

.temoignage-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: transform var(--transition), box-shadow var(--transition);
}

.temoignage-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.temoignage-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 32px;
  width: 48px;
  height: 4px;
  background: var(--color-accent);
  border-radius: 0 0 4px 4px;
}

.temoignage-card__quote {
  font-size: 1rem;
  color: var(--color-text);
  line-height: 1.8;
  font-style: italic;
  margin-bottom: 24px;
}

.temoignage-card__author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.author-avatar {
  width: 44px;
  height: 44px;
  background: var(--color-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  flex-shrink: 0;
}

.author-info strong {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.03em;
}

.author-info span {
  font-size: 0.78rem;
  color: var(--color-text-light);
}

/* ============================================================
   SECTION CONTACT
   ============================================================ */
.contact {
  padding: var(--section-pad);
  background: var(--color-primary);
  position: relative;
  overflow: hidden;
}

.contact::before {
  content: '';
  position: absolute;
  bottom: -150px;
  right: -150px;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(196,98,45,0.2) 0%, transparent 70%);
  pointer-events: none;
}

.contact .container {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 80px;
  align-items: start;
  position: relative;
  z-index: 1;
}

.contact__info {
  color: var(--color-white);
}

.contact__info .section-label {
  color: var(--color-accent-light);
}

.contact__info .section-title {
  color: var(--color-white);
  margin-bottom: 20px;
}

.contact__description {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 36px;
  line-height: 1.8;
}

.contact__coords {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact__coord-item {
  display: flex;
  align-items: center;
  gap: 16px;
}

.coord-icon {
  width: 44px;
  height: 44px;
  background: rgba(255,255,255,0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background var(--transition);
}

.contact__coord-item:hover .coord-icon {
  background: var(--color-accent);
}

.coord-icon svg {
  width: 20px;
  height: 20px;
  fill: var(--color-accent-light);
}

.coord-text {
  display: flex;
  flex-direction: column;
}

.coord-text span {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.5);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-family: var(--font-heading);
  font-weight: 500;
}

.coord-text a,
.coord-text strong {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-white);
  transition: color var(--transition);
}

.coord-text a:hover {
  color: var(--color-accent-light);
}

.contact__zone {
  margin-top: 32px;
  padding: 20px;
  background: rgba(255,255,255,0.06);
  border-left: 3px solid var(--color-accent);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.contact__zone p {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.70);
  margin-bottom: 0;
  line-height: 1.7;
}

/* Formulaire */
.contact__form-wrap {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-lg);
}

.contact__form-wrap h3 {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 28px;
  letter-spacing: 0.02em;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.83rem;
  font-weight: 600;
  color: var(--color-text-light);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-family: var(--font-heading);
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-text);
  background: var(--color-bg);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(30, 58, 95, 0.1);
  background: var(--color-white);
}

.form-group textarea {
  min-height: 120px;
}

.form__submit {
  width: 100%;
  font-size: 1rem;
  padding: 16px;
}

.form__note {
  font-size: 0.75rem;
  color: var(--color-text-light);
  margin-top: 12px;
  text-align: center;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--color-primary-dark);
  padding: 48px 0 24px;
  color: rgba(255,255,255,0.65);
}

.site-footer .container {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 40px;
}

.footer-brand .site-logo__name {
  font-size: 1.15rem;
  margin-bottom: 4px;
  display: block;
}

.footer-brand .site-logo__sub {
  margin-bottom: 16px;
  display: block;
}

.footer-brand p {
  font-size: 0.85rem;
  line-height: 1.7;
  color: rgba(255,255,255,0.55);
}

.footer-col h4 {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-white);
  margin-bottom: 16px;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col ul li a {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.55);
  transition: color var(--transition);
}

.footer-col ul li a:hover {
  color: var(--color-accent-light);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom p {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.35);
  margin-bottom: 0;
}

.footer-bottom .footer-legal {
  display: flex;
  gap: 24px;
}

.footer-bottom .footer-legal a {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.45);
  transition: color var(--transition);
}

.footer-bottom .footer-legal a:hover {
  color: var(--color-accent-light);
}

/* ============================================================
   SÉPARATEUR DÉCORATIF
   ============================================================ */
.section-divider {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin: 0 auto 40px;
  max-width: 240px;
}

.section-divider::before,
.section-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-border);
}

.section-divider--light::before,
.section-divider--light::after {
  background: rgba(255,255,255,0.15);
}

.section-divider span {
  display: block;
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: 50%;
}

/* ============================================================
   ANIMATIONS
   ============================================================ */
@keyframes heroFadeIn {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Fade-in au scroll */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Délais en cascade */
.fade-in:nth-child(1) { transition-delay: 0s; }
.fade-in:nth-child(2) { transition-delay: 0.1s; }
.fade-in:nth-child(3) { transition-delay: 0.2s; }
.fade-in:nth-child(4) { transition-delay: 0.3s; }
.fade-in:nth-child(5) { transition-delay: 0.4s; }
.fade-in:nth-child(6) { transition-delay: 0.5s; }

/* ============================================================
   RESPONSIVE — 1024px
   ============================================================ */
@media (max-width: 1024px) {
  .services__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .about .container {
    gap: 48px;
  }

  .contact .container {
    gap: 48px;
  }

  .site-footer .container {
    grid-template-columns: 1fr 1fr;
  }
}

/* ============================================================
   RESPONSIVE — 768px
   ============================================================ */
@media (max-width: 768px) {
  /* Navigation mobile */
  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: min(320px, 85vw);
    height: 100vh;
    background: var(--color-primary-dark);
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 28px;
    padding: 80px 40px 40px;
    transition: right var(--transition);
    box-shadow: -8px 0 32px rgba(0,0,0,0.3);
  }

  .site-nav.open {
    right: 0;
  }

  .site-nav a {
    font-size: 1.1rem;
  }

  .site-nav .btn--outline {
    margin-left: 0;
    width: 100%;
    text-align: center;
  }

  /* Hero */
  .hero {
    clip-path: polygon(0 0, 100% 0, 100% 97%, 0 100%);
    padding: 100px 0 120px;
    text-align: center;
  }

  .hero__eyebrow,
  .hero__eyebrow::before {
    justify-content: center;
  }

  .hero__eyebrow::before { display: none; }

  .hero__tagline {
    margin: 0 auto 40px;
  }

  .hero__cta {
    justify-content: center;
  }

  .hero__badges {
    justify-content: center;
  }

  /* About */
  .about .container {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .about__since-card {
    bottom: -16px;
    right: 16px;
  }

  /* Services */
  .services__grid {
    grid-template-columns: 1fr;
  }

  /* Réalisations */
  .realisations__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Témoignages */
  .temoignages__grid {
    grid-template-columns: 1fr;
  }

  /* Contact */
  .contact .container {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .contact__form-wrap {
    padding: 28px 20px;
  }

  /* Footer */
  .site-footer .container {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* ============================================================
   RESPONSIVE — 480px
   ============================================================ */
@media (max-width: 480px) {
  .realisations__grid {
    grid-template-columns: 1fr;
  }

  .hero__cta {
    flex-direction: column;
    width: 100%;
  }

  .hero__cta .btn {
    width: 100%;
    text-align: center;
  }

  .about__certifs {
    flex-direction: column;
  }
}