* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Montserrat', sans-serif;
  position: relative;
  color: #222;
  background-color: #02020C;
}

body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: url('./assets/background-image.png') no-repeat center center;
  background-size: cover;
  opacity: 0.3; 
  pointer-events: none;
  z-index: -1;
}

header {
  padding: 20px 15px;
  max-width: 900px;
  margin: 0 auto;
  position: relative;
}

.logo {
  position: absolute;
  top: 60px;
  left: 15px;
  user-select: none;
}

.logo img {
  height: 30px;
  width: auto;
  display: block;
}

.header-content {
  text-align: center;
  padding-top: 25%;
}

h1 {
  margin: 0;
  font-size: 2.4rem;
  color: #FAFAFA;
  padding-bottom: 40px;
}

.preheading {
  font-size: 14px;
  color: #FAFAFA;
}

.subheading {
  margin: 15px 0 25px;
  font-size: 1rem;
  line-height: 1.5;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  color: #FAFAFA;
  padding-bottom: 40px;
}

.btn-group {
  display: flex;
  justify-content: center;
  gap: 15px;
  flex-wrap: wrap;
}

button,
a.button-link {
  background-color: white;
  color: #02020C;
  border: none;
  padding: 12px 25px;
  font-size: 1rem;
  border-radius: 4px;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  transition: background-color 0.3s ease;
}

button:hover,
a.button-link:hover {
  background-color: #fafafa85;
}

@media (max-width: 400px) {
  h1 {
    font-size: 1.8rem;
  }
  .subheading {
    font-size: 0.9rem;
    max-width: 90%;
  }
  .btn-group {
    flex-direction: column;
    gap: 10px;
    max-width: 220px;
    margin: 0 auto;
  }
  button,
  a.button-link {
    width: 100%;
    padding: 12px;
  }
}