body {
  margin: 0;
  padding: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: url('mobile.jpg') no-repeat center center/cover;
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  color: white;
  text-align: center;
}

.overlay {
  background-color: rgba(0, 0, 0, 0.4);
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.content {
  position: relative;
  z-index: 1;
}

h1 {
  font-size: 2rem;
  margin-bottom: 20px;
}

.buttons {
  margin-bottom: 20px;
}

.btn {
  background-color: #4b5f2b;
  color: white;
  padding: 12px 24px;
  border: none;
  margin: 10px;
  border-radius: 30px;
  font-size: 1rem;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.btn:hover {
  background-color: #3d4e21;
}

.footer {
  font-size: 1.1rem;
  margin-top: 20px;
}

.logo {
  margin-top: 10px;
  background: white;
  padding: 10px;
  border-radius: 50%;
  display: inline-block;
}

.logo img {
  height: 40px;
}