* {
  box-sizing: border-box;
}

:root {
  --fond: #f8fafc;
  --fond-alt: #eef2f7;
  --surface: #ffffff;
  --texte: #1f2937;
  --texte-doux: #5b6472;
  --primaire: #111827;
  --primaire-2: #1d4ed8;
  --bordure: #dbe2ea;
  --ombre: 0 10px 30px rgba(15, 23, 42, 0.08);
  --rayon: 18px;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  color: var(--texte);
  background: var(--fond);
  line-height: 1.6;
}

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

a {
  color: inherit;
}

.conteneur {
  width: min(1140px, calc(100% - 2rem));
  margin: 0 auto;
}

/* Header */
.entete {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(17, 24, 39, 0.92);
  backdrop-filter: blur(10px);
  color: #fff;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.navigation {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 74px;
}

.logo {
  font-size: 1.15rem;
  font-weight: 700;
  text-decoration: none;
  letter-spacing: 0.02em;
}

.menu-principal {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.menu-principal a {
  text-decoration: none;
  color: #fff;
  opacity: 0.92;
}

.menu-principal a:hover {
  opacity: 1;
}

/* Sections */
.section {
  padding: 5rem 0;
}

.section-compacte {
  padding-top: 3rem;
}

.section-alt {
  background: var(--fond-alt);
}

.entete-page {
  padding-bottom: 2rem;
}

.titre-section {
  max-width: 760px;
  margin-bottom: 2.2rem;
}

.titre-section.centre {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

.titre-section span,
.sur-titre,
.badge {
  display: inline-block;
  margin-bottom: 0.8rem;
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--primaire-2);
}

.badge {
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  background: rgba(255,255,255,0.16);
  color: #fff;
}

h1,
h2,
h3,
h4,
p {
  margin-top: 0;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.8rem);
  line-height: 1.05;
  margin-bottom: 1rem;
}

h2 {
  font-size: clamp(1.7rem, 3vw, 2.5rem);
  line-height: 1.15;
  margin-bottom: 0.8rem;
}

p {
  color: var(--texte-doux);
}

/* Boutons */
.bouton {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.9rem 1.25rem;
  border: none;
  border-radius: 12px;
  background: var(--primaire);
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  cursor: pointer;
  box-shadow: var(--ombre);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.bouton:hover {
  transform: translateY(-2px);
}

.bouton-secondaire {
  background: #fff;
  color: var(--primaire);
  border: 1px solid rgba(255,255,255,0.35);
}

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  padding: 6rem 0 5rem;
  background:
    radial-gradient(circle at top left, rgba(59,130,246,0.28), transparent 35%),
    radial-gradient(circle at bottom right, rgba(99,102,241,0.18), transparent 35%),
    linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  color: #fff;
}

.hero-grille {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3rem;
  align-items: center;
}

.hero-texte p {
  color: rgba(255,255,255,0.86);
  max-width: 640px;
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1.5rem;
}

.hero-visuel img {
  width: 100%;
  max-width: 520px;
  margin-left: auto;
  filter: drop-shadow(0 18px 50px rgba(0,0,0,0.35));
}

/* Services */
.grille-services {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem;
}

.carte-service {
  background: var(--surface);
  border: 1px solid var(--bordure);
  border-radius: var(--rayon);
  padding: 2rem;
  box-shadow: var(--ombre);
}

.carte-service img {
  width: 58px;
  height: 58px;
  margin-bottom: 1rem;
}

.carte-service h3 {
  margin-bottom: 0.5rem;
}

/* Stats */
.grille-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.2rem;
}

.carte-stat {
  background: #fff;
  border: 1px solid var(--bordure);
  border-radius: var(--rayon);
  padding: 1.6rem;
  text-align: center;
  box-shadow: var(--ombre);
}

.carte-stat strong {
  display: block;
  font-size: 2rem;
  color: var(--primaire);
  margin-bottom: 0.4rem;
}

/* Bloc promo */
.bloc-promo {
  background: linear-gradient(135deg, #ffffff 0%, #f3f6fb 100%);
  border: 1px solid var(--bordure);
  border-radius: 24px;
  padding: 2rem;
  box-shadow: var(--ombre);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

/* Galerie */
.grille-galerie {
  display: grid;
  gap: 1.2rem;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.carte-galerie {
  position: relative;
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
  border-radius: 18px;
  overflow: hidden;
  box-shadow: var(--ombre);
}

.carte-galerie img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform 0.35s ease;
}

.carte-galerie:hover img {
  transform: scale(1.06);
}

.overlay-galerie {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: end;
  justify-content: start;
  padding: 1rem;
  background: linear-gradient(to top, rgba(15,23,42,0.72), transparent 55%);
  color: #fff;
  font-weight: 700;
  opacity: 0;
  transition: opacity 0.25s ease;
}

.carte-galerie:hover .overlay-galerie {
  opacity: 1;
}

.message-erreur {
  padding: 1rem;
  border-radius: 12px;
  background: #fee2e2;
  color: #991b1b;
  margin-bottom: 1rem;
}

/* Modale */
.modale-galerie {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  z-index: 1000;
}

.modale-galerie.active {
  display: flex;
}

.modale-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.82);
}

.modale-contenu {
  position: relative;
  z-index: 1;
  max-width: 1000px;
  max-height: 90vh;
  width: 100%;
}

.modale-contenu img {
  width: 100%;
  max-height: 90vh;
  object-fit: contain;
  background: #fff;
  border-radius: 18px;
}

.modale-fermer {
  position: absolute;
  top: -0.75rem;
  right: -0.75rem;
  width: 2.6rem;
  height: 2.6rem;
  border: none;
  border-radius: 50%;
  background: #111;
  color: #fff;
  font-size: 1.5rem;
  cursor: pointer;
  box-shadow: var(--ombre);
}

/* Contact */
.contact-grille {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 2rem;
  align-items: start;
}

.bloc-contact-infos,
.bloc-formulaire {
  background: #fff;
  border: 1px solid var(--bordure);
  border-radius: 22px;
  padding: 2rem;
  box-shadow: var(--ombre);
}

.liste-infos {
  display: grid;
  gap: 1rem;
  margin-top: 1.5rem;
}

.info-contact {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.info-contact img {
  width: 44px;
  height: 44px;
  flex: 0 0 auto;
}

.message-success{
 padding:1rem;
 border-radius:12px;
 background:#dcfce7;
 color:#166534;
 margin-bottom:1rem;
}

.formulaire-contact {
  display: grid;
  gap: 1rem;
}

.potdmiel{
    display:none;
}

.formulaire-contact input,
.formulaire-contact textarea {
  width: 100%;
  padding: 1rem 1rem;
  border: 1px solid var(--bordure);
  border-radius: 12px;
  background: #fff;
  color: var(--texte);
  font: inherit;
}

.formulaire-contact input:focus,
.formulaire-contact textarea:focus {
  outline: 2px solid rgba(29, 78, 216, 0.15);
  border-color: #93c5fd;
}

.formulaire-contact textarea {
  min-height: 180px;
  resize: vertical;
}

/* Footer */
.pied-de-page {
  margin-top: 3rem;
  padding-top: 3rem;
  background: #111827;
  color: rgba(255,255,255,0.88);
}

.pied-de-page-grille {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 0.8fr;
  gap: 2rem;
}

.pied-de-page h3,
.pied-de-page h4,
.pied-de-page p,
.pied-de-page a {
  color: inherit;
}

.liste-footer {
  list-style: none;
  padding: 0;
  margin: 0;
}

.liste-footer li + li {
  margin-top: 0.6rem;
}

.liste-footer a {
  text-decoration: none;
}

.footer-bas {
  margin-top: 2rem;
  padding: 1.2rem 0;
  border-top: 1px solid rgba(255,255,255,0.08);
}

/* Responsive */
@media (max-width: 960px) {
  .hero-grille,
  .contact-grille,
  .grille-stats,
  .grille-services,
  .pied-de-page-grille,
  .bloc-promo {
    grid-template-columns: 1fr;
  }

  .bloc-promo {
    align-items: flex-start;
  }

  .hero-visuel img {
    margin: 0 auto;
  }
}

@media (max-width: 768px) {
  .navigation {
    flex-direction: column;
    justify-content: center;
    padding: 1rem 0;
  }

  .menu-principal {
    flex-wrap: wrap;
    justify-content: center;
  }

  .hero {
    padding: 4.5rem 0 4rem;
  }

  .section {
    padding: 4rem 0;
  }

  h1 {
    line-height: 1.12;
  }
}