html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  overflow: hidden;
  font-family: 'Segoe UI', sans-serif;
  background-color: #f4f7f9;
}

#loader {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: #f4f7f9;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  transition: opacity 0.5s ease;
}

.loader-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.spinner {
  border: 6px solid #e0e0e0;
  border-top: 6px solid #1976D2;
  border-radius: 50%;
  width: 50px;
  height: 50px;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0%   { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.logo-carga {
  max-width: 120px;
  margin-bottom: 20px;
}

.header-logo {
  text-align: center;
  background-color: #f4f7f9;
  padding-top: 10px;
}

.header-logo img {
  max-height: 115px;
}

iframe {
  width: 100%;
  height: 100%;
  border: none;
  margin-top: -14px;
}