* {
  box-sizing: border-box;
}

html {
  background: #07100c;
  color: #cbd8d0;
  font-family: "Courier New", Courier, monospace;
}

body {
  margin: 0;
  padding: 32px 20px 60px;
}

main {
  max-width: 820px;
  margin: 0 auto;
}

a {
  color: #74c69d;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

header {
  border-bottom: 1px solid #356b55;
  padding-bottom: 18px;
  margin-bottom: 28px;
}

nav {
  font-size: 13px;
  line-height: 1.8;
  margin-bottom: 28px;
}

nav a {
  margin-right: 14px;
  white-space: nowrap;
}

h1 {
  color: #89d2ad;
  font-size: 30px;
  font-weight: normal;
  margin: 0 0 8px;
}

h2 {
  color: #67b48d;
  font-size: 17px;
  font-weight: normal;
  border-bottom: 1px solid #244c3b;
  padding-bottom: 5px;
  margin-top: 36px;
}

p {
  line-height: 1.6;
}

.intro {
  color: #9caf9f;
  max-width: 700px;
}

.entry {
  margin: 18px 0;
}

.entry a {
  font-size: 16px;
}

.entry p {
  margin: 4px 0 0 18px;
  color: #8ea397;
  font-size: 14px;
}

.tag {
  color: #527764;
  font-size: 12px;
  margin-left: 6px;
}

footer {
  border-top: 1px solid #244c3b;
  margin-top: 50px;
  padding-top: 15px;
  color: #617a6d;
  font-size: 12px;
  line-height: 1.7;
}

.mark {
  color: #438a70;
}

.code {
  color: #438a70;
  font-size: 13px;
}

::selection {
  background: #438a70;
  color: #07100c;
}


/* 404 page */

body.error-page {
  padding: 40px 20px;
}

body.error-page main {
  max-width: 720px;
  margin: 10vh auto 0;
}

body.error-page h1 {
  color: #74c69d;
  font-size: 28px;
}

body.error-page p {
  color: #8ea397;
}