:root {
  --baseline: 14px;

  --off-white: #fcfcfc;
  --dark-gray: #444;
  --med-gray: #777;
  --light-gray: #eee;
  --dark-purple: #664e87;

  --serif-family: "Merriweather", serif;
  --sans-family: "Lato", sans-serif;
  --mono-family: "Roboto Mono", monospace;
}

/* Top level layout */

*, body, html {
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--off-white);
  font: 16px/calc(2 * var(--baseline)) var(--serif-family);
  color: var(--dark-gray);
}

nav {
  padding-left: 20px;
  box-sizing: border-box;
  font-family: var(--sans-family);
  background-color: var(--dark-purple);
}

#main {
  max-width: 680px;
  padding-bottom: 40px;
}

/* Nav bar */

#name {
  font-size: 80px;
  line-height: calc(6 * var(--baseline));
}

nav {
  & a {
    color: var(--off-white);
    font-weight: bold;
    text-decoration: none;
  }

  & > ul {
    display: flex;
    flex-direction: row;
    font-size: 30px;
    line-height: calc(3 * var(--baseline));
    padding-bottom: var(--baseline);
    list-style-type: none;
  }

  & > ul a {
    color: var(--light-gray);
  }

  & > ul a:hover {
    color: var(--off-white);
  }
}


@media (max-width: 680px) {
  nav li:not(:first-child):before {
    content: "\2002◆\2002";
    color: var(--light-gray);
  }
}

@media (min-width: 681px) and (max-width: 768px) {
  #name {
    font-size: 60px;
  }
}

@media (min-width: 681px) {
  #main {
    margin-left: 30%;
  }
  nav {
    width: 30%;
    position: fixed;
    height: 100%;
    left: 0;
    top: 0;
    text-align: right;
    padding-right: 20px;
    padding-top: calc(6 * var(--baseline));
  }
  nav > ul {
    flex-direction: column;
  }
}

@media (min-width: 1200px) and (min-height: 550px) {
  nav {
    padding-top: calc(8 * var(--baseline));
  }
  #name {
    font-size: 120px;
    line-height: calc(9 * var(--baseline));
  }
}

/* Post index */

#post-index {
  font: 20px/calc(2 * var(--baseline)) var(--sans-family);
  margin-top: calc(2 * var(--baseline));
  padding: 0 20px;

  & > .date {
    text-align: right;
  }
}

.post-link {
  color: var(--dark-gray);
  text-decoration: none;
  display: flex;
  justify-content: space-between;
  margin: var(--baseline) 0;

  &:hover > .date {
    color: var(--dark-gray);
  }
}

.date {
  color: var(--med-gray);
}

/* Main pages and markdown */

header {
  font-family: var(--sans-family);
  margin: calc(2 * var(--baseline)) 0;
  padding: 0 20px;

  & > .title {
    font-size: 40px;
    line-height: calc(3 * var(--baseline));
    margin: var(--baseline) 0;
    font-weight: bold;
  }

  & > .date {
    font-size: 20px;
    line-height: calc(2 * var(--baseline));
    margin: var(--baseline) 0;
  }
}

code, pre {
  font: 16px var(--mono-family);
}

#post {
  & h1, h2, h3, h4, h5, h6 {
    padding: 0 20px;
  }
  & h1 {
    font: bold 32px/calc(3 * var(--baseline)) var(--sans-family);
    margin: calc(2 * var(--baseline)) 0 var(--baseline) 0;
  }
  & h2 {
    font: bold 24px/calc(2 * var(--baseline)) var(--sans-family);
    margin: calc(2 * var(--baseline)) 0 var(--baseline) 0;
  }
  & > p {
    padding: 0 20px;
  }
  & p {
    margin-bottom: var(--baseline);
  }

  & pre {
    margin-bottom: var(--baseline);
    background-color: var(--light-gray);
    line-height: 26px;
    padding: 15px 20px;
    overflow-x: auto;
  }

  & a {
    color: var(--dark-purple);
  }

  & ol, ul {
    padding-left: 40px;
    margin-bottom: var(--baseline);
  }

  & img {
    display: block;
    margin: var(--baseline) auto;
    border: var(--baseline) solid var(--light-gray);
    max-width: calc(100% - 2 * var(--baseline));
  }

  & img[data-lightbox] {
    cursor: pointer;
  }
}

img {
  background-color: var(--light-gray);
}

#lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  z-index: 1000;

  display: none;
  justify-content: center;
  align-items: center;

  background: rgba(128, 128, 128, 0.8);

  & img {
    border: var(--baseline) solid var(--light-gray);
    max-width: calc(100% - 4 * var(--baseline));
    max-height: calc(100vh - 4 * var(--baseline));
  }
}

footer {
  padding: 0 20px;
  font: 24px var(--sans-family);
  margin: calc(3 * var(--baseline)) 0;
  text-align: center;
  color: var(--dark-purple);
}