#initial-loader {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  /* Immersive brand splash — deep navy in both light and dark. */
  background-color: #0e213a;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.5s ease;
}

#initial-loader .logo {
  width: 180px;
  max-width: 60vw;
  height: auto;
  margin-bottom: 28px;
}

#initial-loader .spinner {
  width: 28px;
  height: 28px;
  border: 2px solid rgba(255, 255, 255, 0.18);
  border-radius: 50%;
  /* turquoise brand accent */
  border-top-color: #47c1b8;
  animation: spin 0.9s ease-in-out infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}