.merci {
  background: #f7f9f7;
  min-height: 100vh;
  padding: 6rem 2rem;
  text-align: center;
  font-family: 'Segoe UI', sans-serif;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #2e3d2f;
}

.merci h1 {
  font-size: 2.8rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: #1c2c23;
  text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.03);
}

.merci p {
  font-size: 1.2rem;
  color: #555;
  margin-bottom: 2.5rem;
  max-width: 600px;
  line-height: 1.6;
}

.merci a {
  display: inline-block;
  background-color: #4CAF50;
  color: white;
  text-decoration: none;
  padding: 0.8rem 1.6rem;
  border-radius: 30px;
  font-weight: bold;
  font-size: 1rem;
  transition: background-color 0.3s ease, transform 0.2s ease;
}

.merci a:hover {
  background-color: #388e3c;
  transform: scale(1.05);
}