body {
  background: lightskyblue;
  font-family: "lido", Arial;
  text-align: center;
  font-size: 1.5rem;
  font-weight: 700;
}

.main-content {
  background: deepskyblue;
  display: flex;
  flex-direction: column;
  padding: 15px;
  margin-bottom: 20px;
  border-radius: 8px;
}

.header-bar{
    display: flex;
    flex-direction: row;
    justify-content: space-between;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: dodgerblue;
  padding: 1rem;
  margin-top: 1rem;
  border-radius: 8px;
  width: 9rem;
}

.page-container {
  display: flex;
  flex-direction: row;
}

.page-content {
  padding: 1rem;
}

ul {
    list-style-type: none;
    padding: 0;
    margin: 0;
}

.answer-list {
    display: flex;
    flex-direction: row;
    align-items: flex-start;
}

.standard-button {
  background-color: lightgrey;
  border: none;
  border-radius: 4px;
  width: 7rem;
  height: 3rem;
  font-size: 1.4rem;
  cursor: pointer;
  margin: 1rem;
}

.standard-button:disabled {
  background-color: grey;
  cursor: not-allowed;
}

.head-icon {
  transform-origin: bottom left;
  animation: nodding 2s linear infinite;
} 

@keyframes nodding {
  0% { transform: rotate(0deg); }
  25% { transform: rotate(5deg); }
  50% { transform: rotate(0eg); }
  75% { transform: rotate(-5deg); }
  100% { transform: rotate(0deg); }
}

.sidebar-nav img {
  margin: 0.6rem;
}

.sidebar-nav img:hover {
  transform: scale(1.2);
  transition: transform 0.2s;
}

.sidebar-nav button {
  background-color: transparent;
  border: none;
  cursor: pointer;
}

input[type="text"], input[type="password"] {
  font-size: 1.4rem;
  padding: 0.5rem;
  margin: 0.5rem;
}

.ring-container {
  position: absolute;
  right: 4rem;
  top: 20rem;
}

.ring {
  margin: 0.5rem;
  border: 5px solid gold;
  width: 16px;
  height: 16px;
  border-radius: 16px;
  animation: ring-spin linear 2s infinite; 
}

.ring-fail {
  margin: 0.5rem;
  border: 4px solid gold;
  width: 16px;
  height: 0px;
  border-radius: 2px;
}

@keyframes ring-spin {
    0% {
        transform: rotateY(0);
    }
    100% {
        transform: rotateY(360deg);
    }
}