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

body {
  background-color: white;
  color: black;
  font-family: 'Helvetica Neue', sans-serif;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  animation: fadeInBody 1.5s ease-in-out;
}

.centered-text {
  font-size: 4rem;
  font-weight: bold;
  letter-spacing: 2px;
  animation: popIn 5s ease-in-out forwards;
  opacity: 0;
}

@media (max-width: 600px) {
  .centered-text {
    font-size: 2.5rem;
  }
}

@keyframes fadeInBody {
  from {
    background-color: #f0f0f0;
  }
  to {
    background-color: white;
  }
}

@keyframes popIn {
  0% {
    transform: scale(0.8);
    opacity: 0;
  }
  50% {
    transform: scale(1.05);
    opacity: 0.5;
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

.error-container {
  text-align: center;
  animation: fadeInBody 1s ease-in-out;
}

.error-code {
  font-size: 6rem;
  font-weight: bold;
  margin-bottom: 1rem;
  animation: popIn 1s ease-out;
}

.error-message {
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
  animation: fadeInText 1.2s ease-out;
}

.back-link {
  text-decoration: none;
  color: black;
  font-weight: bold;
  border: 2px solid black;
  padding: 0.5rem 1rem;
  transition: all 0.3s ease;
}

.back-link:hover {
  background-color: black;
  color: white;
}

@keyframes fadeInText {
  from {
    opacity: 0