body, html {
  height: 100%;
  display: grid;
  background-color: rgb(230, 236, 240);
  padding: 0;
  margin: 0;
  color: #111;
  font-size: 1.2em;
}

body, input {
  font-family: Circular, Helvetica, Arial, sans-serif;;
}

section {
  margin: auto;
  max-width: 800px;
  padding: 20px;
}

p {
  margin: 2em 0;
  line-height: 1.5;
}

h1 {
  margin-top: 0;
}

#logo {
  background: url(indy.svg) no-repeat bottom left;
  background-size: 100%;
  padding: 0;
  margin: 0 -0.1em 0 0;
  color: transparent;
  font-size: 3em;
  font-variant: small-caps;
  position: relative;
  top: -0.2em;
}

#fields {
  display: flex;
  flex-direction: row;
  justify-content: center;
  margin: 0 auto;
  border: 0;
  padding: 0;
}

#existing {
  font-size: .5em;
  text-align: center;
  margin: .5em;
}

input {
  font-size: .8em;
  padding: .5em;
}

input[type=email] {
  border: 2px solid #4E5391;
  min-width: 15em;
  border-radius: .2em 0 0 .2em;
}
input[type=submit], #joinbtn {
  color: white;
  font-weight: bold;
  background: #4E5391 url(slack.svg) no-repeat .5em center;
  text-indent: 1.8em;
  background-size: 1.4em;
  border: 0;
  border-radius: 0 .2em .2em 0;
  font-size: .8em;
  padding: .5em;
  padding-left: 2.5em;
  margin: 1em auto;
  margin-bottom: 2em;
}

input[type=submit]:hover, #joinbtn:hover  {
  background-color: #4E5391CC;
}

[disabled] {
  opacity: 0.3;
}

[disabled] input[type=submit]:hover {
  background-color: #4E5391;
}

#join {
  margin-bottom: 2em;
  position: relative;
  text-align: center;
}

#success {
  position: absolute;
  top: -1em;
  margin: 0;
  padding: 20px;
  background: #4E5391EE;
  color: white;
  border-radius: .5em;
}