* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Quicksand', sans-serif;
  background-color: #f2f2f2;
  background-image: url("wallpaperflare.com_wallpaper_3.jpg");
  background-size: cover;
  background-position: center;
  backdrop-filter: blur(15px);
}

.header {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  height: 100vh;
  color: #fff;
  text-align: center;
  position: relative;
  transform-style: preserve-3d;
  transition: transform 0.5s ease-in-out;
}

.header h1 {
  font-size: 3.5rem;
  margin-top: 2rem;
  margin-bottom: 1rem;
  color: #fff;
}

.header p {
  font-size: 1.5rem;
  margin-bottom: 2rem;
  color: #fff;
}

.header a {
  color: #000;
  background-color: #fff;
  font-size: 1.2rem;
  text-decoration: none;
  padding: 0.8rem 1.6rem;
  border-radius: 1.5rem;
  transition: background-color 0.3s ease-in-out;
}

.header a:hover {
  color: #fff;
  background-color: #2c3e50;
}

@media (max-width: 600px) {
  .header {
    padding: 5rem 0;
  }

  .header h1 {
    font-size: 3rem;
  }

  .header p {
    font-size: 1.2rem;
  }

  .header a {
    font-size: 1rem;
    padding: 0.6rem 1.2rem;
  }
}

.header.flipped {
  transform: rotateY(180deg);
}