body {
  font-family: 'Segoe UI', sans-serif;
  margin: 0;
  background: #f8fafc;
  color: #1e293b;
}

.container {
  width: 90%;
  max-width: 1100px;
  margin: auto;
}

header {
  background: white;
  box-shadow: 0 2px 6px rgba(0,0,0,0.05);
  padding: 15px 0;
}

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

.logo {
  font-size: 22px;
  font-weight: bold;
  color: #1e40af;
}

nav a {
  margin-left: 20px;
  text-decoration: none;
  color: #334155;
  font-weight: 500;
}

.btn-nav {
  background: #f59e0b;
  padding: 8px 14px;
  border-radius: 5px;
  color: white;
}

.hero {
  background: linear-gradient(135deg, #1e40af, #2563eb);
  color: white;
  padding: 100px 0;
  text-align: center;
}

.btn-primary {
  background: #f59e0b;
  padding: 12px 24px;
  color: white;
  border-radius: 6px;
  text-decoration: none;
  display: inline-block;
  margin-top: 20px;
}

.impact {
  padding: 60px 0;
}

.grid-3 {
  display: grid;
  gap: 30px;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.territoire {
  background: #e2f3ec;
  padding: 60px 0;
  text-align: center;
}

.page {
  padding: 80px 0;
}

.contact-form {
  display: flex;
  flex-direction: column;
}

input, textarea {
  padding: 12px;
  margin-bottom: 15px;
  border-radius: 6px;
  border: 1px solid #cbd5e1;
}

button {
  border: none;
  cursor: pointer;
}

footer {
  background: #0f172a;
  color: white;
  padding: 40px 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px,1fr));
  gap: 20px;
}

footer a {
  color: #cbd5e1;
  text-decoration: none;
}

copyright {
  text-align: center;
}