body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: #f7f8fc;
  color: #1f2937;
  line-height: 1.6;
}

header {
  background: white;
}header {
  padding: 20px 7%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid #e5e7eb;
}

header h1 {
  font-size: 30px;
}nav {
 display: flex;
 gap: 28px;
}

nav a {
  color: #374151;
  text-decoration: none;
  font-weight: 600;
}nav a {
  text-decoration: none;
  color: #1f2937;
  font-size: 18px;
  font-weight: 600;
}

nav a:hover {
  color: #6366f1;
}main {
  width: 86%;
  max-width: 1200px;
  margin: 0 auto;
}

main > section:first-child {
  padding: 80px 0;
}main > section:first-child h2 {
  font-size: 32px;
  line-height: 1.2;
  margin: 20px 0;
  max-width: 700px;
}

main > section:first-child p {
  font-size: 18px;
}main > section:first-child p {
  max-width: 650px;
  margin-top: 18px;
  color: #52606d;
  line-height: 1.7;
}main > section:first-child a {
  display: inline-block;
  margin-top: 25px;
  padding: 12px 22px;
  border-radius: 8px;
  font-weight: 600;
}#services {
  padding: 70px 0;
  border-top: 1px solid #e5e7eb;
}services article {
  background: white;
  padding: 25px;
  margin-bottom: 20px;
  border-radius: 12px;
  border: 1px solid #e5e7eb;
}#services article h3 {
  font-size: 22px;
  margin-bottom: 10px;
}

#services article p {
  color: #52606d;
  line-height: 1.6;
}#services article {
  transition: transform 0.2s ease;
}

#services article:hover {
  transform: translateY(-4px);
}#services {
  display: grid;
  gap: 20px;
}#contact {
  padding: 70px 0;
  border-top: 1px solid #e5e7eb;
}

#contact h2 {
  font-size: 32px;
  margin-bottom: 20px;
}

#services article {
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.06);
}#services article h3 {
  color: #1f2937;
  font-weight: 700;
}

#services article p {
  margin-top: 8px;
  margin-bottom: 0;
}.menu {
  position: relative;
}

.menu-btn {
  font-size: 32px;
  background: none;
  border: none;
  cursor: pointer;
}

.menu-links {
  display: none;
}.menu-links.open {
    display: block;
}.vitrine {
  padding: 40px 7%;
}

.galerie-cartes {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.galerie-cartes img {
  width: 360px;
  max-width: 100%;
  border-radius: 12px;
}
.choix-cartes {
  margin-left: 7%;
}