/* ============================================================
   SOLAVI NIGER — Feuille de styles principale
   Version : 1.0.0
   Auteur   : Développement Solavi
   ============================================================ */

/* ============================================================
   1. CSS CUSTOM PROPERTIES (Variables)
   ============================================================ */
:root {
  /* Couleurs principales */
  --color-primary:     #1A3A6B;   /* Bleu roi profond       */
  --color-primary-dk:  #112A52;   /* Bleu encore plus sombre */
  --color-primary-lt:  #2A5298;   /* Bleu moyen              */
  --color-accent:      #F07C00;   /* Orange vibrant          */
  --color-accent-lt:   #FFA133;   /* Orange clair            */
  --color-accent-dk:   #C96200;   /* Orange foncé            */

  /* Neutres */
  --color-bg:          #FFFFFF;
  --color-bg-alt:      #F5F7FB;
  --color-blue-light:  #E8F0FE;
  --color-text:        #1E2A3A;
  --color-text-muted:  #5A6A7E;
  --color-border:      #DDE3EE;
  --color-success:     #1B8C4E;

  /* Typographie */
  --font-sans:   'Inter', system-ui, -apple-system, sans-serif;
  --font-serif:  'Playfair Display', Georgia, serif;

  --text-xs:   0.75rem;
  --text-sm:   0.875rem;
  --text-base: 1rem;
  --text-lg:   1.125rem;
  --text-xl:   1.25rem;
  --text-2xl:  1.5rem;
  --text-3xl:  1.875rem;
  --text-4xl:  2.25rem;
  --text-5xl:  3rem;
  --text-6xl:  3.75rem;

  /* Espacements */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Rayons */
  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  20px;
  --radius-xl:  32px;
  --radius-full: 9999px;

  /* Ombres */
  --shadow-sm:  0 1px 3px rgba(26, 58, 107, 0.08), 0 1px 2px rgba(26,58,107,0.06);
  --shadow-md:  0 4px 16px rgba(26, 58, 107, 0.12);
  --shadow-lg:  0 12px 40px rgba(26, 58, 107, 0.16);
  --shadow-xl:  0 24px 64px rgba(26, 58, 107, 0.20);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  /* Layout */
  --container-max: 1200px;
  --container-pad: clamp(var(--space-4), 5vw, var(--space-8));
  --navbar-h:      72px;
}

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

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

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-base);
}

ul, ol { list-style: none; }

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

h1, h2, h3, h4 {
  line-height: 1.2;
  font-weight: 700;
}

/* ============================================================
   3. UTILITAIRES
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.section {
  padding-block: var(--space-20);
}

.section--light {
  background: var(--color-bg-alt);
}

/* En-têtes de section */
.section-header {
  text-align: center;
  margin-bottom: var(--space-12);
}

.section-tag {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: rgba(240, 124, 0, 0.1);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-4);
}

.section-title {
  font-size: clamp(var(--text-2xl), 4vw, var(--text-4xl));
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.section-subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 600px;
  margin-inline: auto;
}

/* Dégradé texte signature */
.text-gradient {
  background: linear-gradient(135deg, var(--color-primary-lt) 0%, var(--color-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ============================================================
   4. BOUTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 600;
  padding: 0.75rem 1.625rem;
  border-radius: var(--radius-full);
  transition:
    background var(--transition-base),
    color var(--transition-base),
    transform var(--transition-base),
    box-shadow var(--transition-base);
  white-space: nowrap;
  letter-spacing: 0.02em;
}

.btn:hover  { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn--primary {
  background: var(--color-accent);
  color: #fff;
  box-shadow: 0 4px 16px rgba(240,124,0,0.30);
}
.btn--primary:hover {
  background: var(--color-accent-dk);
  box-shadow: 0 8px 24px rgba(240,124,0,0.40);
}

.btn--outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,0.6);
}
.btn--outline:hover {
  background: rgba(255,255,255,0.12);
  border-color: #fff;
}

.btn--card {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
  font-size: var(--text-xs);
  padding: 0.5rem 1.25rem;
  margin-top: var(--space-4);
}
.btn--card:hover {
  background: var(--color-primary);
  color: #fff;
}

.btn--sm   { font-size: var(--text-xs); padding: 0.55rem 1.1rem; }
.btn--full { width: 100%; }

/* ============================================================
   5. NAVBAR
   ============================================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--navbar-h);
  background: transparent;
  transition:
    background var(--transition-slow),
    box-shadow  var(--transition-slow);
}

.navbar--scrolled {
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-md);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: var(--space-8);
}

/* Logo */
.navbar__logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.navbar__logo-img {
  height: 28px;
  width: auto;
  display: block;
  /* Sur fond sombre (navbar transparente) : le logo orange + texte gris pâle est déjà lisible.
     Au scroll (fond blanc), on assombrit légèrement le texte gris via filter. */
  filter: brightness(1.15);
  transition: filter var(--transition-base), opacity var(--transition-base);
}

.navbar--scrolled .navbar__logo-img {
  /* Sur fond blanc le texte "SOLAVI" est gris clair — on le rend plus visible */
  filter: brightness(0.55) sepia(0.2);
}

.navbar__logo-img:hover {
  opacity: 0.85;
}

/* Conservé pour rétrocompatibilité footer texte si besoin */
.logo-text {
  font-size: var(--text-2xl);
  font-weight: 900;
  letter-spacing: -0.03em;
  color: #fff;
}
.logo-accent { color: var(--color-accent); }

/* Logo footer (image) */
.footer__logo-img {
  height: 52px;
  width: auto;
  display: block;
  margin-bottom: var(--space-3);
  /* Sur fond sombre du footer, on amplifie légèrement la luminosité */
  filter: brightness(1.3) saturate(1.1);
}

/* Nav links */
.nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.nav__link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: rgba(255,255,255,0.88);
  padding-block: var(--space-1);
  position: relative;
  transition: color var(--transition-base);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-accent);
  transform: scaleX(0);
  transition: transform var(--transition-base);
  border-radius: var(--radius-full);
}

.nav__link:hover { color: #fff; }
.nav__link:hover::after { transform: scaleX(1); }

.navbar--scrolled .nav__link       { color: var(--color-text-muted); }
.navbar--scrolled .nav__link:hover { color: var(--color-primary); }

/* Actions */
.navbar__actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

/* CTA navbar override au scroll */
.navbar--scrolled .btn--primary { /* identique */ }

/* Burger */
.burger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 26px;
  height: 18px;
  padding: 0;
}

.burger span {
  display: block;
  height: 2px;
  background: #fff;
  border-radius: var(--radius-full);
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.navbar--scrolled .burger span { background: var(--color-primary); }

.burger--open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.burger--open span:nth-child(2) { opacity: 0; }
.burger--open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* ============================================================
   6. HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100svh;
  background: linear-gradient(135deg, var(--color-primary-dk) 0%, var(--color-primary-lt) 60%, #2D6BE4 100%);
  display: flex;
  align-items: center;
  padding-top: var(--navbar-h);
  overflow: hidden;
}

/* Motif de fond subtil */
.hero__bg-pattern {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 50%, rgba(240,124,0,0.12) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(255,255,255,0.06) 0%, transparent 40%),
    url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  pointer-events: none;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: center;
  padding-block: var(--space-20);
  position: relative;
  z-index: 1;
}

/* Contenu texte */
.hero__badge {
  display: inline-block;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.25);
  color: rgba(255,255,255,0.9);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.06em;
  padding: var(--space-1) var(--space-4);
  border-radius: var(--radius-full);
  backdrop-filter: blur(8px);
  margin-bottom: var(--space-6);
}

.hero__title {
  font-size: clamp(var(--text-3xl), 5vw, var(--text-6xl));
  font-weight: 900;
  color: #fff;
  margin-bottom: var(--space-6);
  line-height: 1.12;
}

.hero__title .text-gradient {
  background: linear-gradient(135deg, #FFD166 0%, var(--color-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  font-size: var(--text-lg);
  color: rgba(255,255,255,0.80);
  max-width: 520px;
  margin-bottom: var(--space-8);
  line-height: 1.7;
}

.hero__btns {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-12);
}

.hero__stats {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  flex-wrap: wrap;
}

.hero__stat {
  text-align: center;
}

.hero__stat strong {
  display: block;
  font-size: var(--text-3xl);
  font-weight: 900;
  color: #fff;
  line-height: 1;
}

.hero__stat span {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.65);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.hero__stat-divider {
  width: 1px;
  height: 36px;
  background: rgba(255,255,255,0.2);
}

/* Visuel côté droit */
.hero__visual {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  align-items: center;
}

.hero__card {
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: var(--radius-lg);
  padding: var(--space-5) var(--space-6);
  display: flex;
  align-items: center;
  gap: var(--space-4);
  width: 100%;
  max-width: 320px;
  transition: transform var(--transition-slow), box-shadow var(--transition-slow);
  cursor: default;
}

.hero__card:hover {
  transform: translateX(-6px) translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.hero__card--1 { align-self: flex-end; }
.hero__card--2 { align-self: flex-start; transform: translateX(20px); }
.hero__card--2:hover { transform: translateX(14px) translateY(-4px); }
.hero__card--3 { align-self: flex-end; }

.card-icon {
  font-size: 2rem;
  flex-shrink: 0;
}

.hero__card strong {
  display: block;
  font-size: var(--text-base);
  font-weight: 700;
  color: #fff;
}

.hero__card small {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.65);
}

/* Cercles décoratifs */
.hero__circle {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}

.hero__circle--1 {
  width: 200px;
  height: 200px;
  border: 2px solid rgba(240,124,0,0.2);
  top: -40px;
  right: -40px;
}

.hero__circle--2 {
  width: 120px;
  height: 120px;
  border: 2px solid rgba(255,255,255,0.1);
  bottom: 20px;
  left: 20px;
}

/* Vague de transition */
.hero__wave {
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  line-height: 0;
}

.hero__wave svg {
  width: 100%;
  height: 80px;
}

/* ============================================================
   7. À PROPOS
   ============================================================ */
.about__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

/* Image col */
.about__img-wrapper {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: visible;
}

.about__svg {
  width: 100%;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
}

.about__badge {
  position: absolute;
  bottom: -var(--space-4);
  right: -var(--space-4);
  background: var(--color-accent);
  color: #fff;
  font-size: var(--text-xs);
  font-weight: 700;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  box-shadow: var(--shadow-lg);
  bottom: -16px;
  right: -16px;
}

/* Texte */
.about__text {
  color: var(--color-text-muted);
  line-height: 1.75;
  margin-bottom: var(--space-4);
}

.about__text strong { color: var(--color-primary); }

.about__values {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.about__value-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
}

.value-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
  line-height: 1;
  margin-top: 2px;
}

.about__value-item strong {
  display: block;
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-1);
}

.about__value-item p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin: 0;
}

/* ============================================================
   8. SERVICES
   ============================================================ */
.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.service-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  position: relative;
  transition:
    transform    var(--transition-slow),
    box-shadow   var(--transition-slow),
    border-color var(--transition-slow);

  /* Animation d'entrée */
  opacity: 0;
  transform: translateY(30px);
}

.service-card.is-visible {
  opacity: 1;
  transform: translateY(0);
  transition:
    opacity      var(--transition-slow),
    transform    var(--transition-slow),
    box-shadow   var(--transition-slow),
    border-color var(--transition-slow);
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: var(--color-accent);
}

/* Carte featured */
.service-card--featured {
  background: linear-gradient(145deg, var(--color-primary-dk), var(--color-primary));
  border-color: transparent;
  color: #fff;
}

.service-card--featured .service-card__title,
.service-card--featured .service-card__desc,
.service-card--featured .service-card__list li {
  color: rgba(255,255,255,0.90);
}

.service-card--featured .service-card__title { color: #fff; }

.service-card--featured:hover {
  border-color: var(--color-accent-lt);
}

.service-card__badge {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  background: var(--color-accent);
  color: #fff;
  font-size: var(--text-xs);
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 2px var(--space-3);
  border-radius: var(--radius-full);
}

/* Icône */
.service-card__icon-wrap {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
  font-size: 2rem;
}

.service-card__icon-wrap--blue   { background: var(--color-blue-light); }
.service-card__icon-wrap--orange { background: rgba(240,124,0,0.15); }
.service-card__icon-wrap--green  { background: rgba(27,140,78,0.12); }

.service-card--featured .service-card__icon-wrap {
  background: rgba(255,255,255,0.15);
}

.service-card__title {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}

.service-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.65;
  margin-bottom: var(--space-4);
}

.service-card__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.service-card__list li {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* ============================================================
   9. ZONES IMMOBILIÈRES
   ============================================================ */
.zones {
  background: linear-gradient(160deg, var(--color-primary-dk) 0%, var(--color-primary) 60%, var(--color-primary-lt) 100%);
  position: relative;
  overflow: hidden;
}

.zones .section-tag {
  color: #FFD166;
  background: rgba(255,209,102,0.15);
}

.zones .section-title { color: #fff; }

.zones .section-subtitle { color: rgba(255,255,255,0.72); }

.zones::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: rgba(240,124,0,0.1);
  pointer-events: none;
}

.zones__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: var(--space-4);
  position: relative;
  z-index: 1;
}

.zone-card {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  text-align: center;
  transition:
    background  var(--transition-base),
    transform   var(--transition-base),
    box-shadow  var(--transition-base);
  cursor: default;

  /* Animation d'entrée */
  opacity: 0;
  transform: translateY(20px);
}

.zone-card.is-visible {
  opacity: 1;
  transform: translateY(0);
  transition:
    opacity    var(--transition-slow),
    transform  var(--transition-slow),
    background var(--transition-base),
    box-shadow var(--transition-base);
}

.zone-card:hover {
  background: rgba(255,255,255,0.16);
  transform: translateY(-6px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.2);
}

.zone-card__icon {
  font-size: 1.5rem;
  display: block;
  margin-bottom: var(--space-2);
}

.zone-card__name {
  display: block;
  font-size: var(--text-sm);
  font-weight: 700;
  color: #fff;
  margin-bottom: var(--space-2);
}

.zone-card__tag {
  font-size: var(--text-xs);
  color: #FFD166;
  font-weight: 500;
}

.zones__cta {
  text-align: center;
  margin-top: var(--space-12);
  position: relative;
  z-index: 1;
}

.zones__cta p {
  color: rgba(255,255,255,0.75);
  font-size: var(--text-lg);
  margin-bottom: var(--space-6);
}

/* ============================================================
   10. FAQ ACCORDÉON
   ============================================================ */
.faq__list {
  max-width: 780px;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.faq__item {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition:
    border-color var(--transition-base),
    box-shadow   var(--transition-base);

  /* Animation d'entrée */
  opacity: 0;
  transform: translateY(16px);
}

.faq__item.is-visible {
  opacity: 1;
  transform: translateY(0);
  transition:
    opacity      var(--transition-slow),
    transform    var(--transition-slow),
    border-color var(--transition-base),
    box-shadow   var(--transition-base);
}

.faq__item--open {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.faq__question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  width: 100%;
  padding: var(--space-5) var(--space-6);
  text-align: left;
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-primary);
  transition: color var(--transition-base);
}

.faq__question:hover { color: var(--color-accent); }

.faq__icon {
  font-size: var(--text-xl);
  font-weight: 300;
  flex-shrink: 0;
  line-height: 1;
  color: var(--color-primary);
  transition: transform var(--transition-base), color var(--transition-base);
}

.faq__item--open .faq__icon {
  transform: rotate(45deg);
  color: var(--color-accent);
}

.faq__answer {
  padding: 0 var(--space-6) var(--space-5);
  border-top: 1px solid var(--color-border);
}

.faq__answer p {
  color: var(--color-text-muted);
  line-height: 1.75;
  padding-top: var(--space-4);
  font-size: var(--text-sm);
}

.faq__answer strong { color: var(--color-primary); }

/* ============================================================
   11. CONTACT
   ============================================================ */
.contact {
  background: var(--color-bg);
}

.contact__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: start;
}

.contact__lead {
  color: var(--color-text-muted);
  font-size: var(--text-lg);
  line-height: 1.7;
  margin-bottom: var(--space-8);
}

.contact__details {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.contact__detail-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
}

.contact__detail-icon {
  font-size: 1.4rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.contact__detail-item strong {
  display: block;
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-1);
}

.contact__detail-item p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

.contact__detail-item a {
  color: var(--color-text-muted);
}

.contact__detail-item a:hover {
  color: var(--color-accent);
}

/* Formulaire */
.contact__form-wrap {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-sm);
}

.contact__form {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.form__group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form__label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary);
}

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

.form__input {
  width: 100%;
  background: var(--color-bg);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0.7rem var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-text);
  outline: none;
  transition:
    border-color var(--transition-base),
    box-shadow   var(--transition-base);
  appearance: none;
  -webkit-appearance: none;
}

.form__input::placeholder { color: var(--color-border); }

.form__input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(26, 58, 107, 0.10);
}

.form__select {
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%235A6A7E' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  padding-right: 2.5rem;
}

.form__textarea {
  resize: vertical;
  min-height: 120px;
  line-height: 1.6;
}

.form__notice {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-align: center;
  margin-top: calc(-1 * var(--space-2));
}

/* ============================================================
   12. FOOTER
   ============================================================ */
.footer {
  background: var(--color-primary-dk);
  color: rgba(255,255,255,0.75);
  padding-top: var(--space-16);
}

.footer__inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-8);
  padding-bottom: var(--space-12);
}

.footer__logo {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-3);
  display: block;
}

.footer__tagline {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.6);
  font-style: italic;
  line-height: 1.5;
  margin-bottom: var(--space-3);
}

.footer__address {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.45);
  letter-spacing: 0.04em;
}

.footer__nav-title {
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent-lt);
  margin-bottom: var(--space-4);
}

.footer__nav-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer__nav-list li,
.footer__nav-list a {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.65);
  transition: color var(--transition-base);
  line-height: 1.4;
}

.footer__nav-list a:hover { color: #fff; }

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-block: var(--space-5);
}

.footer__bottom .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.footer__bottom p {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.45);
}

/* ============================================================
   13. ANIMATIONS D'ENTRÉE (Intersection Observer)
   ============================================================ */
.about__content,
.about__image-col {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.about__content.is-visible,
.about__image-col.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Délais en cascade pour les grilles */
.services__grid .service-card:nth-child(1) { transition-delay: 0ms; }
.services__grid .service-card:nth-child(2) { transition-delay: 100ms; }
.services__grid .service-card:nth-child(3) { transition-delay: 200ms; }

.zones__grid .zone-card:nth-child(1)  { transition-delay:   0ms; }
.zones__grid .zone-card:nth-child(2)  { transition-delay:  60ms; }
.zones__grid .zone-card:nth-child(3)  { transition-delay: 120ms; }
.zones__grid .zone-card:nth-child(4)  { transition-delay: 180ms; }
.zones__grid .zone-card:nth-child(5)  { transition-delay: 240ms; }
.zones__grid .zone-card:nth-child(6)  { transition-delay: 300ms; }
.zones__grid .zone-card:nth-child(7)  { transition-delay: 360ms; }
.zones__grid .zone-card:nth-child(8)  { transition-delay: 420ms; }
.zones__grid .zone-card:nth-child(9)  { transition-delay: 480ms; }
.zones__grid .zone-card:nth-child(10) { transition-delay: 540ms; }

.faq__list .faq__item:nth-child(1) { transition-delay:   0ms; }
.faq__list .faq__item:nth-child(2) { transition-delay:  80ms; }
.faq__list .faq__item:nth-child(3) { transition-delay: 160ms; }
.faq__list .faq__item:nth-child(4) { transition-delay: 240ms; }
.faq__list .faq__item:nth-child(5) { transition-delay: 320ms; }

/* ============================================================
   14. RESPONSIVE — TABLETTE (≤ 1024px)
   ============================================================ */
@media (max-width: 1024px) {

  .hero__inner {
    grid-template-columns: 1fr;
    text-align: center;
    padding-block: var(--space-16);
  }

  .hero__subtitle { margin-inline: auto; }

  .hero__btns { justify-content: center; }

  .hero__stats { justify-content: center; }

  .hero__visual {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-3);
  }

  .hero__card {
    max-width: 200px;
    flex-direction: column;
    text-align: center;
    padding: var(--space-4);
  }

  .hero__card--2 { transform: none; }
  .hero__card--2:hover { transform: translateY(-4px); }

  .hero__circle { display: none; }

  .about__inner {
    grid-template-columns: 1fr;
    gap: var(--space-10);
  }

  .about__image-col { order: -1; }

  .about__svg { max-width: 480px; margin-inline: auto; }

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

  .contact__inner {
    grid-template-columns: 1fr;
    gap: var(--space-10);
  }

  .footer__inner {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
  }
}

/* ============================================================
   15. RESPONSIVE — MOBILE (≤ 768px)
   ============================================================ */
@media (max-width: 768px) {

  /* Navbar */
  .navbar__nav {
    position: fixed;
    top: var(--navbar-h);
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    padding: var(--space-4) var(--space-6);
    transform: translateY(-110%);
    opacity: 0;
    transition: transform var(--transition-slow), opacity var(--transition-slow);
    pointer-events: none;
  }

  .navbar__nav--open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .nav__list {
    flex-direction: column;
    gap: var(--space-1);
  }

  .nav__link {
    display: block;
    padding: var(--space-3) 0;
    font-size: var(--text-base);
    color: var(--color-primary) !important;
    border-bottom: 1px solid var(--color-border);
  }

  .nav__link:last-child { border-bottom: none; }

  .burger { display: flex; }

  .navbar__actions .btn--primary { display: none; }

  /* Hero */
  .hero__visual { display: none; }

  .hero__inner { padding-block: var(--space-12); }

  .hero__btns { flex-direction: column; align-items: center; }

  .hero__btns .btn { width: 100%; max-width: 280px; }

  .hero__stats { gap: var(--space-4); }

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

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

  /* Form */
  .form__row {
    grid-template-columns: 1fr;
  }

  /* Footer */
  .footer__inner {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .footer__bottom .container {
    flex-direction: column;
    text-align: center;
  }
}

/* ============================================================
   16. RESPONSIVE — PETIT MOBILE (≤ 480px)
   ============================================================ */
@media (max-width: 480px) {

  :root {
    --space-20: 3.5rem;
    --space-16: 3rem;
    --space-12: 2.5rem;
  }

  .hero__title { font-size: var(--text-3xl); }

  .section-title { font-size: var(--text-2xl); }

  .zones__grid {
    grid-template-columns: 1fr;
  }

  .contact__form-wrap {
    padding: var(--space-5);
  }
}

/* ============================================================
   17. ACCESSIBILITÉ
   ============================================================ */

/* Focus visible */
:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: 3px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}

/* Impression */
@media print {
  .navbar, .hero__btns, .contact__form-wrap, .btn { display: none !important; }
  body { font-size: 12pt; color: #000; }
  .hero { background: none; color: #000; min-height: auto; padding: 0; }
  .hero__title { color: #000; }
}