.message {
  background-color: rgba(128, 176, 255, .75);
  border: 1px solid rgb(0, 64, 96);
  border-radius: .1em;
  color: rgb(0, 64, 96);
  display: block;
  margin-bottom: 1em;
  padding: 1em;
}
.message > ul {
  margin-bottom: 0;
  padding-left: 1.2em;
}
.message a {
  color: inherit;
  text-decoration: underline;
}
.message--centered {
  text-align: center;
}
.message--smaller {
  font-size: .97rem;
}
.message--smallest {
  font-size: .8rem;
}
.message--shallow {
  margin: 0;
  padding-block: .2em;
}
.message--error {
  background-color: rgba(255, 128, 128, .75);
  border: 1px solid rgb(96, 16, 16);
  color: rgb(96, 16, 16);
}
.message--error-plain {
  background-color: unset;
  border: unset;
  color: var(--link-color-active);
  flex-basis: 33%;
  margin: 0;
  margin-right: 1em;
  padding: 0;
}
.message--error-plain + input,
.message--error-plain + textarea {
  color: white;
  background-color: var(--light-red);
}
.message--success {
  background-color: rgba(112, 208, 112, .75);
  border: 1px solid rgb(16, 96, 16);
  color: rgb(16, 96, 16);
}
.message--warning {
  background-color: rgba(255, 192, 112, 0.75);
  border: 1px solid rgb(208, 96, 48);
  color: rgb(208, 96, 48);
}
.message--blink {
  animation: blink 2.5s ease-out;
  animation-iteration-count: infinite;
}

.error-404 {
  margin: 0 auto;
  max-width: 15em;
}
.error-404 > img {
  filter: drop-shadow(.15em .12em .09em var(--light-red));
  width: 100%;
  height: auto;
}
.error-404 > figcaption {
  box-shadow: var(--box-shadow);
  text-align: center;
  margin-bottom: 1em;
}