/* CSS reset */

html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed,
figure, figcaption, footer, header, hgroup,
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
  margin: 0;
  padding: 0;
  border: 0;
  font-size: 100%;
  font: inherit;
  vertical-align: baseline;
  font-family: Impact, Charcoal, sans-serif;
  }
article, aside, details, figcaption, figure,
footer, header, hgroup, menu, nav, section {
  display: block;
  }
body { line-height: 1; }
ol, ul { list-style: none; }
blockquote, q { quotes: none; }
blockquote:before, blockquote:after,
q:before, q:after { content: ''; content: none; }
table {
  border-collapse: collapse;
  border-spacing: 0;
  }

/* Custom */

/* Tabs */
* { box-sizing: border-box; }
body {
  display: flex;
  justify-content: center;
  padding: 0px;
  background: #1e1e1e;
  color: #efefef;
  }
h1 {
  margin: 0;
  font-size: 2em;
  }
.tabs {
  display: flex;
  width: 100%;
  flex-wrap: wrap;
  background: #e5e5e5;
  }
.input {
  position: absolute;
  opacity: 0;
  }
.label {
  width: 100%;
  padding: 18px 28px;
  background: #e5e5e5;
  cursor: pointer;
  font-weight: bold;
  font-size: 18px;
  color: #7f7f7f;
  transition: background 0.1s, color 0.1s;
  border-style: solid;
  border-width: 0 0 4px 0;
  border-color: #acacac;
  }
.label:hover {
  background: #d8d8d8;
  }
.label:active {
  background: #ccc;
  }
.input:focus + .label {
  z-index: 1;
  }
.input:checked + .label {
  background: #1e1e1e;
  color: #efefef;
  border-width: 4px 0 0 0;
  border-color: #65a57d;
  }
.panel {
  display: none;
  width: 100%;
  padding: 20px 30px 30px;
  background: #1e1e1e;
  color: #e5e5e5;
  }
.panel .panel-content {
  width: 100%;
  max-width: 800px;
  }

@media (min-width: 600px) {
  .label { width: auto; }
  .panel { order: 99; }
}

.input:checked + .label + .panel { display: block; }

#logo {
  width: 130px;
  height: 58px;
  margin-right: 20px;
  background: url(marlin-logo.png) no-repeat center center;
  }

input[type="text"], textarea {
  background-color: #2c2c2c;
  border: solid 2px #314b3b;
  color: #e5e5e5;
  outline: none;
  }

input[type="text"]:focus, textarea:focus {
  border-color: #4d7a5e;
  }

ul#serial-output {
  width: 100%;
  height: 300px;
  overflow-y: scroll;
  background-color: #2c2c2c;
  border: solid 2px #314b3b;
  }

ul#serial-output li {
  padding: 4px;
  font-family: "Lucida Console", Monaco, monospace;
  font-size: 0.8em;
  }

ul#serial-output li:nth-child(odd) {
  background-color: #3c3c3c;
  }

div.form-wrapper {
  display: flex;
  width: 100%;
  margin: 6px 0;
  }

div.form-wrapper input {
  font-size: 1.2em;
  padding: 4px 6px;
  }

div.form-wrapper input[type="text"] {
  flex: 1 1 auto;
  }

div.form-wrapper input[type="submit"],
div.form-wrapper button {
  border: solid 2px #314b3b;
  background-color: #4d7a5e;
  color: #e5e5e5;
  }