html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  width: 100%;
  background-color: #0a0a0a;
  color: #eaeaea;
  font-family: "Poppins", sans-serif;
}

#app {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  height: 100%;
}

.loading {
  font-size: 1.2em;
  color: #00eaff;
  animation: pulse 1.4s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

iframe {
  width: 100%;
  height: 100%;
  border: none;
}

.hidden {
  display: none;
}

#error-screen {
  text-align: center;
}

#error-screen .logo {
  width: 100px;
  margin-bottom: 20px;
  filter: drop-shadow(0 0 10px #00eaff);
}

#error-screen button {
  background: #00eaff;
  color: #000;
  border: none;
  padding: 10px 18px;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
}