@import url('https://fonts.googleapis.com/css?family=Poppins:100,200,300,400,500,600,700,800,900');

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Poppins", sans-serif;
}

body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f4f7fc;
}

.container {
  position: relative;
  width: 100%;
  max-width: 450px;
  background: #2c3e50;
  padding: 40px;
  overflow: hidden;
  border-radius: 15px;
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
  text-align: center;
  transition: all 0.3s ease-in-out;
}

.container:hover {
  transform: translateY(-5px);
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.2);
}

.heading {
  font-size: 36px;
  color: #ecf0f1;
  margin-bottom: 20px;
  font-weight: 600;
}

.btn {
  width: 100%;
  height: 60px;
  background: #3463db;
  border: none;
  border-radius: 10px;
  color: #fff;
  font-size: 20px;
  font-weight: 500;
  cursor: pointer;
  margin: 10px 0;
  transition: background-color 0.3s ease, transform 0.3s ease;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.btn:hover {
  background: #3b6ff3;
  transform: translateY(-5px);
}

.exit-button {
  position: absolute;
  top: 15px;
  right: 15px;
  background: none;
  border: none;
  color: #e74c3c;
  font-size: 36px;
  cursor: pointer;
  transition: color 0.3s ease;
}

.exit-button:hover {
  color: #c0392b;
}

@media (max-width: 480px) {
  .container {
    max-width: 100%;
    padding: 20px;
  }

  .heading {
    font-size: 28px;
  }

  .btn {
    font-size: 16px;
    padding: 15px;
  }
}