/* Reset de base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* Style général */
body {
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  background-color: #f0f4f8;
  color: #333;
  line-height: 1.6;
}

/* Conteneur central */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header fixe en haut */
header {
  position: sticky;
  top: 0;
  background-color: #00695c;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 20px;
  z-index: 999;
}
header h1 {
  color: #fff;
  font-size: 24px;
}
nav ul {
  list-style: none;
  display: flex;
  gap: 20px;
}
nav ul li a {
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  padding: 8px 12px;
  transition: background 0.3s;
}
nav ul li a:hover {
  background-color: #004d4d;
  border-radius: 4px;
}

/* Section hero */
.hero {
  background: linear-gradient(135deg, #009688, #4db6ac);
  padding: 50px 20px;
  text-align: center;
  color: #fff;
}
.hero h2 {
  font-size: 2em;
  margin-bottom: 15px;
}
.hero p {
  font-size: 1.2em;
}

/* Sections communes */
section {
  background: #fff;
  padding: 40px 20px;
  margin: 0 0 30px 0;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}
h3 {
  margin-bottom: 20px;
  font-size: 1.8em;
  color: #00695c;
  border-bottom: 2px solid #80cbc4;
  padding-bottom: 10px;
}

/* Galerie */
.gallery {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
}
.card {
  flex: 1 1 calc(33% - 40px);
  background: #fafafa;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  transition: transform 0.3s, box-shadow 0.3s;
}
.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}
.card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}
.card p {
  padding: 10px;
  text-align: center;
  font-size: 1em;
  color: #555;
}

/* Formulaire contact */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 15px;
}
.contact-form label {
  font-weight: 600;
}
.contact-form input,
.contact-form textarea {
  padding: 12px;
  border: 1px solid #ccc;
  border-radius: 6px;
  font-size: 1em;
  width: 100%;
}
.contact-form button {
  padding: 14px;
  background-color: #00695c;
  color: #fff;
  font-size: 1em;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.3s;
}
.contact-form button:hover {
  background-color: #004d4d;
}
footer {
  background-color: #00695c;
  color: #fff;
  padding: 20px;
  text-align: center;
}
footer p {
  margin: 0;
}
@media(max-width: 992px) {
  .card {
    flex: 1 1 calc(50% - 40px);
  }
}
@media(max-width: 600px) {
  header {
    flex-direction: column;
    align-items: flex-start;
  }
  nav ul {
    flex-direction: column;
  }
  nav ul li {
    margin: 5px 0;
  }
  .card {
    flex: 1 1 100%;
  }
}