* {
  margin: 0;
  padding: 0;
}

html, body {
  min-width: 600px;
  background-color: #f0f0f0;
}

html, body, input {
  color: #000000;
  font-size: 1.125rem;
  font-family: "Source Sans Pro", sans-serif;
  line-height: 1.5;
}

a {
  color: #a84646;
}

header {
  padding-bottom: 10px;
  text-align: center;
}

header h1 {
  color: #000000;
  margin: 0;
}

header nav ul {
  list-style: none;
  font-size: .9em;
  padding: 0;
}

header nav ul li {
  display: inline;
  margin: 8px;
}

header nav ul li.field {
  margin-left: 32px;
}

header nav ul li:first-child {
  margin-left: 0;
}

header nav ul li:last-child {
  margin-right: 0;
}

header nav ul li a {
  text-decoration: none;
  text-transform: uppercase;
}

header nav ul li a.active {
  font-weight: 900;
  color: #000000;
}

footer {
  padding: 20px 60px;
  font-size: 18px;
}

main {
  padding: 20px 0;
  text-align: center;
  background-color: #ffffff;
}

label {
  color: #000000;
}

main .box {
  display: inline-block;
  vertical-align: top;
  text-align: left;
}

main #plot {
  width: 600px;
  height: 600px;
}

main #form {
  margin: 2em 1em 0 1em;
}

main #summary {
  margin: .7em .35em 0 .35em;
}

main #form .parameters p {
  display: inline-block;
  margin: 7px 5px 7px 0;
  text-align: right;
  width: 6em;
}

main #form .parameters .placeholder {
  display: inline-block;
  width: 5.8em;
  margin: 0 24px 0 0;
}

main #form .parameters .parameter {
  display: inline-block;
  border: 1px solid #a0a0a0;
  border-radius: 3px;
}

main #form .parameters .parameter.curve-coefficient {
  background-color: #c2e0f8;
}

main #form .parameters .parameter.point-coordinate,
main #form .parameters .parameter.multiplication-factor {
  background-color: #edd078;
}

main #form .parameters .parameter.result {
  background-color: #dd6767;
}

main #form .parameters .parameter label {
  display: inline-block;
  margin: 0 5px;
  height: 100%;
  width: 0.8em;
  text-align: center;
}

main #form .parameters .parameter input {
  display: inline-block;
  margin: 1px;
  padding: 1px 5px;
  width: 5em;
  border: 0 none;
}