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

body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #000000;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: #ffffff;
}

header {
  position: fixed;
  top: 1.5rem;
  left: 2rem;
}

#logo {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0.6;
}

main {
  text-align: center;
  padding: 2rem;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

#message {
  font-size: 2.5rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  animation: fadeInUp 0.8s ease forwards;
}

#message.error {
  font-size: 1rem;
  color: #c0392b;
  font-weight: 400;
}