html,
body {
  margin: 0;
  padding: 0;
  font-family: "Calibri", "Arial", "Helvetica Neue", sans-serif;
  overflow: hidden;
}

.page {
  display: grid;
  column-gap: 8px;
  padding: 8px;
  box-sizing: border-box;
  height: 100vh;
  width: 100vw;
  grid-template-columns: auto 20em;
  grid-template-rows: 3em auto 3em;
  grid-template-areas:
    "header header"
    "canvas sidebar"
    "footer footer";
}

header {
  grid-area: header;
  display: flex;
}

header h1 {
  margin: 0;
  flex-grow: 1;
}

.MSlogo {
  height: 50px;
  vertical-align: middle;
  margin-bottom: 3px;
}

.sidebar {
  grid-area: sidebar;
  overflow-y: auto;
}

footer {
  grid-area: footer;
}

select,
input[type="text"] {
  padding: 8px;
}

summary {
  /**
   * The default <summary> doesn't change the cursor, which makes it hard
   * to tell that it's interactive on hover, so let's change that.
   */
  cursor: pointer;
}

/** Stupid class we're using instead of <p> to avoid ValidateDOMNesting warnings. */
.thingy {
  margin-top: 10px;
  margin-bottom: 10px;
}

.thingy:first-child {
  margin-top: 0;
}

ul.navbar {
  display: flex;
  list-style-type: none;
  margin: 0;
  padding: 0;
  justify-content: flex-end;
}

ul.navbar li {
  border-right: 1px solid gray;
  margin-right: 8px;
  padding-right: 8px;
}

ul.navbar li:last-child {
  border-right: none;
  padding-right: 0;
  margin-right: 0;
}

.flex-widget {
  display: flex;
  flex-direction: column;
}

.flex-widget label {
  margin-bottom: 8px;
}

.canvas {
  grid-area: canvas;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.canvas.scrollable {
  display: block;
  overflow: auto;
}

.sidebar .disabled {
  color: gray;
}

.sidebar label.checkbox {
  display: block;
  margin-top: 10px;
  margin-bottom: 10px;
}

.error {
  color: red;
}

.page-error {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(0, 0, 0, 0.75);
}

.page-error div {
  background: crimson;
  color: white;
  padding: 2em;
  max-width: 50em;
}

.page-error div p:first-child {
  margin-top: 0;
}

.page-error div p:last-child {
  margin-bottom: 0;
}

.page-error div button {
  display: block;
  width: 66%;
  margin: 3em auto 0 auto;
  text-align: center;
}