app.scss

@import "tachyons-ext";

$body-font: "Fira Sans", Helvetica, Arial, sans-serif;
$header-font: "Alfa Slab One", serif;

$gray: #2a3439;
$red: #a72145;
$green: #0b7261;
$purple: #2e2459;
$yellow: #ffc832;
$border-radius: 4px;
$link-color: #4299bf;
$footer-gray: $gray;

html {
  font-size: 62.5%;
}

@media screen and (min-width: 30em) {
  html {
    font-size: 75%;
  }
}

body {
  font-family: $body-font;
  background-color: white;
  font-size: 1.5rem;
  line-height: 1.6;

  /* Ensure the footer is always at the bottom of the screen */
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  & > main {
    flex: 1;
  }
}

#ferris img {
  display: block;
  margin: 0 auto;
}

code {
  padding: 0.2rem 0.5rem;
  margin: 0 0.2rem;
  font-size: 90%;
  white-space: nowrap;
  border: 1px solid #e1e1e1;
  border-radius: 4px;
  overflow: auto;
}

pre > code {
  display: block;
  white-space: pre;
}

.button,
button {
  display: inline-block;
  width: 100%;
  min-height: 38px;
  padding: 8px 30px;
  text-align: center;
  font-weight: 600;
  letter-spacing: 0.1rem;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: 4px;
  border: 1px solid;
  cursor: pointer;
  box-sizing: border-box;

  &:hover,
  &:focus {
    outline: 0;
  }
}

p {
  margin-top: 0;
  margin-bottom: 2.5rem;
}

.button.button-secondary {
  font-size: 0.8em;
}

code.code-header {
  background-color: rgba(127, 127, 127, 0.25);
  font-size: 2rem;
  display: inline-block;
  margin: 0 0 3px 0;
}

header h1,
section h2 {
  z-index: 999999;
  position: relative;
  letter-spacing: 1px;
  font-weight: 300;
}

header h1 {
  font-family: $header-font;
  font-size: 8rem;
  margin-bottom: 0;
  margin-top: 0;
  line-height: 1.2;
  font-weight: 300;
  letter-spacing: 1px;
}

header h2 {
  font-size: 4.2rem;
  line-height: 1.25;
  font-weight: 300;
}

section h3 {
  margin-top: 0;
  line-height: 1.3;
}

section p,
code {
  line-height: 1.6;
}

header .button.button-download {
  color: black;
  background-color: $yellow;
  border-color: $yellow;
  width: 100%;
  padding: 20px;
  height: auto;
  font-size: 2.25rem;
  margin-top: 20px;

  &:hover,
  &:focus {
    border-color: black;
  }
}

h2.subtitle {
  margin: 0;
  font-family: $body-font;
  font-size: 3rem;
  font-weight: 600;
  color: $gray;
}

section {
  padding: 30px 0 60px 0;

  header {
    padding: 30px 0 60px 0;
    display: inline-block;

    h2 {
      margin: 0;
      padding: 0;
      letter-spacing: 1px;
      font-size: 4.2rem;
      line-height: 1.25;
    }
  }

  h2 {
    font-family: $body-font;
    font-weight: 800;
  }

  h3 {
    font-weight: 600;
    line-height: 1.3;
  }

  p {
    margin-top: 0;
    margin-bottom: 30px;
  }
}

ul {
  list-style: circle;
  padding-left: 1.5em;
}

ol {
  list-style: decimal;
  padding-left: 1.5em;
}

section .container {
  padding-top: 20px;
}

.nav a {
  color: $gray;
}

div.brand {
  $v-top: 3px; // for getting the vertical rhythm just right

  color: black;
  font-family: $header-font;
  font-size: 3rem;
  text-decoration: none;
  margin-top: $v-top;

  img {
    width: 80px;
    margin-top: -$v-top;
  }

  span {
    display: inline-block;
    margin-left: -1rem;
  }
}

a.brand {
  color: black;
  text-decoration: none;
}

.domain-icon {
  min-height: 100px;
  img {
    max-width: 50%;
    max-height: 50%;
    padding-bottom: 20px;
  }
  text-align: center;
  margin-bottom: -10px;
}

.red {
  background-color: $red;
  color: white;
  .highlight {
    background-color: $purple;
  }
  a {
    color: white;
    text-decoration: underline;
  }
  .button.button-secondary {
    background-color: $purple;
    border-color: $purple;
    color: white;
    text-decoration: none;
    &:hover,
    &:focus {
      border-color: white;
    }
  }
}

.green {
  background-color: $green;
  color: white;
  .highlight {
    background-color: $purple;
  }
  a {
    color: white;
    text-decoration: underline;
  }
  .button.button-secondary {
    background-color: $purple;
    border-color: $purple;
    color: white;
    text-decoration: none;
    &:hover,
    &:focus {
      border-color: white;
    }
  }
}

.white {
  color: black;
  .highlight {
    background-color: $yellow;
  }
  a {
    color: $gray;
    text-decoration: underline;
  }
  .button.button-secondary {
    background-color: $yellow;
    border-color: $yellow;
    color: $gray;
    text-decoration: none;
    &:hover,
    &:focus {
      border-color: $gray;
    }
  }
}

.purple {
  background-color: $purple;
  color: white;
  .highlight {
    background-color: $red;
  }
  a {
    color: white;
    text-decoration: underline;
  }
  .button.button-secondary {
    background-color: $red;
    border-color: $red;
    color: white;
    text-decoration: none;
    &:hover,
    &:focus {
      border-color: white;
    }
  }
}

h3 {
  font-weight: 600;
  font-size: 1.5em;
  letter-spacing: normal;
}

.get-involved .code {
  padding-top: 20px;
}

.get-involved .media {
  padding-bottom: 20px;
  border-bottom: 1px dotted white;
}

.highlight {
  height: 12px;
  position: relative;
  top: 0;
  left: -10px;
  width: 120%;
  max-width: 90vw;
  line-height: 1.6;
  border-radius: 2px;
}

footer {
  padding: 30px 0;
  background-color: $footer-gray;
  color: white;

  p {
    margin: 0;
  }

  ul {
    list-style-type: none;
    padding-left: 0;
    margin-top: 0;
  }

  li {
    margin-bottom: 1rem;
  }

  a {
    color: $yellow;
    text-decoration: none;

    &:hover {
      color: $yellow;
      text-decoration: underline;
    }
  }
}

footer h4 {
  font-size: 1.2em;
  font-weight: 600;
  margin-top: 0;
  margin-bottom: 2rem;
}

footer img {
  width: 40px;
  padding: 0 10px;
}

footer .attribution {
  text-align: center;
  padding-top: 30px;
}

footer .languages {
  color: $gray;
}

blockquote {
  font-size: 1.5em;
  line-height: 1.2em;
  position: relative;
  border-bottom: 1px dotted $gray;
  padding: 5px;
  color: $gray;
}

blockquote::before {
  content: "“";
  color: $gray;
  font-size: 3em;
  position: absolute;
  left: -50px;
  top: 20px;
}

.production .four {
  text-align: center;
}

#production .attribution {
  text-align: right;
}

.production .button.button-secondary {
  margin-top: 30px;
}

.testimonial img {
  padding: 10px;
}

.production .attribution {
  font-size: 1.5em;
  text-align: right;
}

#whitepapers .top-border {
  padding-top: 20px;
  border-top: 1px white dotted;
}

#prod-highlights {
  img {
    width: 100%;
  }
}

#users .row .columns {
  position: relative;
  height: 200px;
}

#users img {
  max-height: 200px;
  max-width: 100px;
  width: auto;
  height: auto;
  margin: auto;
  display: block;
}

.user-logo {
  min-height: 100px;
}

.user-container {
  min-height: 300px;
}

#share-your-experience h3,
#production-domains h3 {
  padding-bottom: 20px;
  text-align: center;
}

#learn-more .columns:first-of-type {
  border-right: 1px black dotted;
}

#learn-begin {
  p:first-of-type {
    padding-bottom: 20px;
    border-bottom: 1px white dotted;
  }
}

#learn-use {
  img {
    width: 30%;
  }
  .domain {
    text-align: center;
  }
}

#security-learn-community-key {
  pre {
    color: black;
  }
}

#rust-trademarks {
  img {
    vertical-align: middle;
  }
}

.tools-row {
  display: flex;
  flex-direction: row;
  margin-bottom: 10px;
}

.tools-row #tools-write-ide-prose {
  margin-right: 10px;
}

.tools-row #tools-write-ide-img {
  flex: none;
  object-fit: none;
}

#embedded-project-gallery {
  iframe {
    width: 100%;
    height: 250px;
  }
  .button.button-secondary {
    color: $yellow;
  }
}

#embedded-users {
  img {
    width: 80%;
    background-color: white;
    padding: 20px;
  }
}

#cli-pitch,
#cli-features {
  .domain-icon {
    display: block;
    padding-bottom: 0;
    min-width: 100px;

    img {
      max-width: 90px;
      height: auto;
      display: block;
      margin-left: auto;
      margin-right: auto;
      padding-bottom: 1em;
      opacity: 0.9;
    }
  }
}

#cli-features {
  h3 code {
    background-color: transparent;
    border: none;
    word-break: break-word;
    white-space: pre-line;
  }
}

#cli-use-it {
  pre {
    color: #fff;
  }
}

#ferris-error {
  width: 80%;
}

.hidden {
  border: 0;
  clip: rect(0 0 0 0);
  height: 1px;
  margin: -1px;
  overflow: hidden;
  padding: 0;
  position: absolute;
  width: 1px;
}

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

.flex {
  &.vertical {
    flex-direction: column;
  }

  &.space-around {
    justify-content: space-around;
  }
}

.flex-no-shrink {
  flex-shrink: 0;
}

.install-details {
  background-color: rgba(white, 0.15);
  border: 1px solid rgba(white, 0.65);
  margin-bottom: 20px;
  padding: 0.2rem 0.5rem;
  margin: 0 0.2rem;
  border-radius: 4px;
}

#language-values span {
  font-weight: 600;
}

@media screen and (max-width: 769px) {
  .highlight {
    border-bottom-left-radius: 0;
    border-top-left-radius: 0;
  }
}

// Temporary HACK: switch away from this when we switch to using Tachyons for
// the page titles -- at that time, we should make a simple component class that
// just composes those classes.
// This hard-coded value for the break-point matches what is in Skeleton.
@media screen and (max-width: 550px) {
  header {
    h1 {
      font-size: 4rem;
    }

    h2.subtitle {
      font-size: 2.5rem;
      line-height: 1.1;
    }

    .button.button-primary.button-download {
      padding: 5px;
      font-size: 1.5em;
      margin-top: 20px;
    }
  }
}

section header {
  padding: {
    top: 10px;
    bottom: 30px;
  }
  h2 {
    font-size: 3rem;
  }
}

.team {
  text-align: center;
  padding: 20px;
  margin: 20px;
  position: relative;
  border: 1px solid white;
  .button {
    position: absolute;
    bottom: 5px;
    width: 80%;
  }
  h4 {
    font-size: 1.5em;
    font-weight: 600;
  }
}

.group-member {
  float: left;
  .name {
    display: block;
    font-weight: 600;
    text-align: center;
    padding: 0;
    margin: 0;
  }
}

.subteam {
  margin: 20px 0;
  width: 100%;
  content: "";
  display: table;
  clear: both;
  border: 1px white solid;
  padding: 20px;
}

.testimonial {
  display: flex;
  align-items: center;

  @media only screen and (max-width: 545px) {
    display: block;
  }
}

.flash {
  width: 100%;
  font-size: 1em;
  padding: 0;
  margin: 0;
  h3 {
    text-align: center;
  }
}

.download-link {
  color: $link-color;
}

#pb4 {
  padding-bottom: 3.8em;
}

.max-height-5rem {
  /* Tachyons is missing this class */
  max-height: 5rem;
}

.max-height-10rem {
  /* Tachyons is missing this class */
  max-height: 10rem;
}