* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  background-color: #f4f4f4;
  color: #333;
}
.logo {
  max-width: 150px;
  margin: 20px;
}
header {
  text-align: center;
}
.hero {
  position: relative;
  text-align: center;
  color: white;
}
.hero-image {
  width: 100%;
  height: 100vh;
  object-fit: cover;
  position: absolute;
  top: 0;
  left: 0;
  z-index: -1;
}
.hero-content {
  position: relative;
  padding: 20px;
  z-index: 1;
  top: 30%;
}
.hero h1 {
  font-size: 3rem;
}
.hero p {
  font-size: 1.5rem;
  margin: 1rem 0;
}
.btn {
  padding: 10px 20px;
  background-color: #f97316;
  color: white;
  text-decoration: none;
  border-radius: 5px;
  display: inline-block;
  margin-top: 1rem;
}
.btn:hover {
  background-color: #ea580c;
}
.about, .services, .contact-form, .merci {
  padding: 2rem;
  background-color: #fff;
  text-align: center;
}
.services {
  background: #111;
  color: white;
}
.service-cards {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
}
.service-item {
  background: #222;
  padding: 20px;
  border-radius: 10px;
  width: 300px;
}
.service-item h3 {
  margin-bottom: 10px;
}
.page-header {
  text-align: center;
  margin: 50px 0;
}
.page-header h1 {
  font-size: 2.5rem;
}
.city {
  margin: 2rem 0;
}
.city img {
  width: 100%;
  max-width: 600px;
  height: auto;
  border-radius: 10px;
}
form {
  max-width: 600px;
  margin: auto;
  display: flex;
  flex-direction: column;
  gap: 15px;
}
input, textarea {
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 5px;
}
button {
  background-color: #007bff;
  color: white;
  border: none;
  padding: 10px;
  border-radius: 5px;
  cursor: pointer;
}
button:hover {
  background-color: #0056b3;
}
footer {
  text-align: center;
  padding: 1rem;
  background: #111;
  color: white;
  margin-top: 2rem;
}

/* -------- Optimisations de style -------- */

@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;600&display=swap');

body {
  font-family: 'Montserrat', sans-serif;
  background-color: #f9fafb;
  color: #111;
}

header {
  background-color: rgba(0, 0, 0, 0.75);
  padding: 1rem;
  position: sticky;
  top: 0;
  z-index: 10;
}

nav ul {
  display: flex;
  justify-content: center;
  gap: 2rem;
  list-style: none;
  padding: 0;
  margin-top: 1rem;
}

nav ul li a {
  color: white;
  text-decoration: none;
  font-weight: 600;
  transition: color 0.3s;
}

nav ul li a:hover {
  color: #f97316;
}

.hero-image::after {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: linear-gradient(to bottom, rgba(0,0,0,0.4), rgba(0,0,0,0.7));
  z-index: 0;
}

.service-item {
  background: white;
  color: #111;
  margin: 1rem;
  padding: 1.5rem;
  border-radius: 10px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.service-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0,0,0,0.15);
}

footer {
  background-color: #111;
  color: white;
  padding: 2rem;
  text-align: center;
  margin-top: 2rem;
}


/* -------- Menu Responsive -------- */

nav {
  background-color: #000;
  padding: 0.5rem 1rem;
}

nav .menu-toggle {
  display: none;
  font-size: 2rem;
  color: white;
  background: none;
  border: none;
  cursor: pointer;
}

nav ul {
  display: flex;
  justify-content: center;
  list-style: none;
  padding: 0;
  margin: 0;
}

nav ul li {
  margin: 0 1rem;
}

nav ul li a {
  color: white;
  text-decoration: none;
  font-weight: 600;
}

@media (max-width: 768px) {
  nav ul {
    display: none;
    flex-direction: column;
    background-color: #111;
    margin-top: 1rem;
  }

  nav ul.show {
    display: flex;
  }

  nav .menu-toggle {
    display: block;
    margin-left: auto;
  }

  nav ul li {
    margin: 1rem 0;
    text-align: center;
  }
}


/* -------- Popups -------- */
.modal-overlay {
  display: none;
  position: fixed;
  z-index: 100;
  left: 0; top: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.7);
  justify-content: center;
  align-items: center;
}

.modal-content {
  background: #fff;
  color: #111;
  padding: 2rem;
  max-width: 600px;
  border-radius: 10px;
  box-shadow: 0 0 20px rgba(0,0,0,0.5);
  position: relative;
}

.close-button {
  position: absolute;
  top: 10px; right: 15px;
  font-size: 1.5rem;
  cursor: pointer;
}


/* Dark mode */
body.dark {
  background-color: #111;
  color: #f4f4f4;
}
body.dark nav ul li a {
  color: #f4f4f4;
}
body.dark .service-item {
  background: #1f1f1f;
}
.dark-mode-toggle {
  position: absolute;
  top: 10px;
  right: 10px;
  color: white;
}

/* Breadcrumb */
.breadcrumb {
  padding: 1rem;
  font-size: 0.9rem;
  background-color: #eee;
}

/* Video */
.video-section {
  text-align: center;
  padding: 2rem;
}

/* Carousel */
.carousel {
  background: #f3f3f3;
  padding: 2rem;
  text-align: center;
}
.carousel-track {
  display: flex;
  overflow-x: auto;
  gap: 1rem;
  padding: 1rem 0;
}
.carousel-item {
  min-width: 250px;
  background: white;
  padding: 1rem;
  border-radius: 10px;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
}


/* Menu responsive */
.menu-toggle {
  display: none;
  font-size: 2rem;
  background: none;
  border: none;
  color: white;
  margin: 1rem;
}
nav ul {
  display: flex;
  list-style: none;
  justify-content: center;
  padding: 0;
}
nav ul li {
  margin: 0 1rem;
}
nav ul li a {
  text-decoration: none;
  color: white;
  font-weight: bold;
}
@media (max-width: 768px) {
  .menu-toggle {
    display: block;
  }
  nav ul {
    display: none;
    flex-direction: column;
    background-color: #111;
    margin-top: 10px;
  }
  nav ul.show {
    display: flex;
  }
}

/* Popups */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.7);
  justify-content: center;
  align-items: center;
  z-index: 1000;
}
.modal-content {
  background: white;
  padding: 2rem;
  border-radius: 10px;
  max-width: 600px;
  position: relative;
}
.close-button {
  position: absolute;
  top: 10px; right: 15px;
  font-size: 1.5rem;
  cursor: pointer;
}