html {
  height: 100%;
}
body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue",
    "Noto Sans", "Liberation Sans", Arial, sans-serif, "Apple Color Emoji",
    "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
  height: 100%;
  margin: 0;
  display: flex;
}
nav {
  background-color: #333;
  width: 15rem;
  flex-shrink: 0;
}
.logo-container {
  width: 9.5rem;
  margin: 1em auto;
}
.logo-container img {
  max-width: 100%;
  height: auto;
}
main {
  flex-grow: 1;
  background-color: rgb(233, 236, 239);
  display: flex;
  flex-direction: column;
  align-items: center;
}
.card {
  display: inline-block;
  background-color: #fff;
  padding: 1em 2em;
  border-radius: 0.375em;
  border: 1px solid #ccc;
  margin: 2em;
  text-align: center;
}
.card.danger {
  background-color: #f8d7da;
  border-color: #f1aeb5;
  color: #58151c;
}
.button {
  display: inline-block;
  background-color: #b60606;
  color: white;
  padding: 0.5em 1em;
  border-radius: 0.375em;
  text-decoration: none;
  line-height: 1.5em;
}
.m-2 {
  margin: 2em;
}
.justify-content-center {
  justify-content: center;
}