* {
  font-family: 'Montserrat', sans-serif;
}

body {
  background-color: #101015;
  color: white;
}

a, a:hover, a:visited {
  color: white;
  text-decoration: none;
}

.container {
  text-align: center;
  margin: auto;
}

.logo {
  max-width: 80px;
}

.alerts {
  list-style: none;
}

.alerts li {
  font-weight: bold;
  color: darkred;
}

.controls {
  margin: 15px 0;
}

.controls i {
  padding: 5px;
  border: 1px solid white;
  margin: 2px;
  cursor: pointer;
}

.controls i.tutorial-active {
  background: #105E00;
  border-color: #3cff5a;
  color: #3cff5a;
}

.remaining-cards {
  border: 1px solid white;
  border-spacing: 0;
  margin: auto;
}

.remaining-cards td {
  text-align: center;
  padding: 5px;
  width: 15px;
  margin: 0;
}

.remaining-cards tr {
  margin: 0;
}

.footer {
  font-size: 14px;
}

.fa-heart {
  color: darkred;
}