* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Poppins", sans-serif;
}
.container {
  width: 100%;
  height: 100vh;
  background: #3c5077;
  display: flex;
  align-items: center;
  justify-content: center;
}
.btn {
  padding: 10px 60px;
  background: #fff;
  border: 0;
  outline: none;
  cursor: pointer;
  font-size: 22px;
  font-weight: 500;
  border-radius: 30px;
}
.popup {
  width: 400px;
  background: #fff;
  border-radius: 6px;
  position: absolute;
  top: 0;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.1);
  text-align: center;
  padding: 0 30px 30px;
  color: #333;
  visibility: hidden;
  transition: transform 0.4s, top 0.4s;
}
.open-popup {
  visibility: visible;
  top: 50%;
  transform: translate(-50%, -50%) scale(1);
}

.popup img {
  width: 100px;
  margin-top: -50px;
  border-radius: 50%;
  box-shadow: 0 2px 5px rgba (0, 0, 0, 0.2);
}
.popup h2 {
  font-size: 38px;
  font-weight: 500;
  margin: 30px 0 10px;
}
.popup button {
  width: 100%;
  margin-top: 50px;
  padding: 10px 0;
  background: #6fd649;
  color: #fff;
  border: 0;
  outline: none;
  font-size: 18px;
  border-radius: 4px;
  cursor: pointer;
  box-shadow: 0 5px 5px rgba (0, 0, 0, 0.2);
}