:root {
  /* --blue: #1ba5db; */
  --blue: #0590f7;
  --dark-gray: #222;
  --light-gray: #ddd;
  --background-gray: #fcfcfc;
}

body {
  margin: 0;
  padding: 0;
  font-family: sanf-serif;
  background-color: var(--background-gray);
  font-size: 13pt;
}

a {
  color: var(--dark-gray);
  text-decoration: none;
}

a:hover {
  color: var(--blue);
  text-decoration: underline;
}

#header {
  background-color: white;
}

.banner-container {
  display: flex;
  justify-content: center;
  background-image: linear-gradient(90deg, white 50%, var(--blue) 51%);
  text-align: center;
  font-family: serif;
  overflow: hidden;
}

#banner-image {
  max-height: 16em;
  width: auto;
}

.banner-container a {
  color: white;
}

.navigation {
  display: flex;
  flex-direction: horizontal;
  align-items: center;
  justify-content: middle;
  border-bottom: 1px solid var(--light-gray);
  font-variant: small-caps;
}

.navigation .title {
  padding-right: .5em;
}

.navigation .spacer {
  flex-grow: 1;
}

.navigation a {
  padding: .5em;
}

.navigation a[active] {
  color: var(--blue);
}

div#main-content {
  padding: 1em;
  text-align: center;
  margin: 0 10%;
}

div#construction {
  font-size: 3em;
  margin-bottom: 1ch;
}

img#timbre {
  position: absolute;
  height: 5em;
  width: auto;
  rotate: -10deg;
  translate: -12ch -1.5em;
}

#footer {
  width: 100%;
  text-align: center;
}

div.card {
  position: relative;
  display: inline-block;
  margin: 1ch;
  box-shadow: 2px 2px 5px;
  background-color: white;
  width: 30ch;
  height: 30ch;
  background-size: 30ch;
}

div.card>div.card-label {
  position: absolute;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.9);
  color: var(--light-gray);
  text-align: center;
  width: 100%;
}