/* Réinitialisation basique */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #fff;
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

/* En-tête */
header {
  background-color: #2c3e50;
  color: white;
  padding: 15px 0;
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
}

header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

header h1 {
  font-size: 1.5rem;
}

.menu {
  display: flex;
  list-style: none;
  gap: 20px;
}

.menu a {
  color: white;
  text-decoration: none;
  font-weight: 500;
}

.menu a:hover {
  text-decoration: underline;
}

.menu-toggle {
  display: none;
  font-size: 1.5rem;
  cursor: pointer;
}

/* Hero */
.hero {
  background: linear-gradient(120deg, #1e3c72, #2a5298);
  color: white;
  padding: 150px 20px 100px;
  text-align: center;
}

.hero h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.2rem;
  margin-bottom: 1.5rem;
}

/* Sections */
.section {
  padding: 80px 0;
}

.section h2 {
  text-align: center;
  margin-bottom: 2rem;
  font-size: 2rem;
  color: #2c3e50;
}

/* Services */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}

.service-card {
  background: #f9f9f9;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
  text-align: center;
}

/* Portfolio */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 15px;
  margin-top: 20px;
}

.portfolio-item {
  background: #eef2f7;
  padding: 15px;
  border-radius: 6px;
  text-align: center;
}

/* Contact */
#contactForm {
  max-width: 600px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 15px;
}

#contactForm input,
#contactForm textarea {
  padding: 12px;
  border: 1px solid #ccc;
  border-radius: 6px;
  font-size: 1rem;
}

#contactForm textarea {
  height: 120px;
  resize: vertical;
}

.btn {
  background-color: #3498db;
  color: white;
  border: none;
  padding: 12px 24px;
  font-size: 1rem;
  border-radius: 6px;
  cursor: pointer;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  width: fit-content;
  margin: 0 auto;
}

.btn:hover {
  background-color: #2980b9;
}

.contact-info {
  text-align: center;
  margin-top: 20px;
  font-style: italic;
}

/* Footer */
footer {
  background: #2c3e50;
  color: white;
  text-align: center;
  padding: 20px 0;
}

/* Responsive */
@media (max-width: 768px) {
  .menu {
    display: none;
    position: absolute;
    top: 70px;
    left: 0;
    width: 100%;
    background: #34495e;
    flex-direction: column;
    padding: 15px 0;
    gap: 15px;
  }

  .menu.active {
    display: flex;
  }

  .menu-toggle {
    display: block;
  }

  .hero h2 {
    font-size: 2rem;
  }

  .section {
    padding: 60px 0;
  }
}