:root {
  --bg: #161a20;
  --ink: #e0e5ec;
  --body: #98a2b0;
  --dim: #7c8796;
  --line: #212831;
  --accent: #d9a86c;
}

*, ::before, ::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--body);
  font: 15px/1.85 ui-monospace, SFMono-Regular, Menlo, monospace;
}

.wrap {
  max-width: 660px;
  margin: 0 auto;
  padding: 0 20px;
}

a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px dotted var(--dim);
}

a:hover {
  color: var(--accent);
  border-color: var(--accent);
}

nav {
  display: flex;
  gap: 22px;
  padding: 30px 0;
  font-size: 14px;
}

nav a {
  border: 0;
  color: var(--dim);
}

nav a:hover,
nav a.on {
  color: var(--accent);
}

.prompt {
  color: var(--dim);
  font: inherit;
  font-size: 14px;
  font-weight: 400;
  margin: 54px 0 14px;
}

.prompt::before {
  content: "> ";
  color: var(--accent);
}

header .prompt {
  margin-top: 34px;
}

h1 {
  font-size: 26px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--ink);
  margin: 0 0 18px;
  max-width: 26ch;
}

h2 {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ink);
  margin: 44px 0 12px;
}

p {
  margin: 0 0 16px;
  max-width: 62ch;
}

/* tight under the h1, open before the body. */
.byline {
  color: var(--dim);
  font-size: 14px;
  margin: -12px 0 34px;
}

.on {
  color: var(--accent);
}

.muted {
  color: var(--dim);
}

.sep {
  color: #4d5766;
  padding: 0 3px;
}

/* label / value output lines */
.row {
  display: flex;
  gap: 16px;
  margin-bottom: 4px;
  font-size: 14px;
}

.row > span:first-child {
  color: var(--dim);
  flex: 0 0 96px;
}

/* a named thing plus one line about it */
.item {
  margin-bottom: 22px;
  max-width: 62ch;
}

.item b {
  color: var(--ink);
  font-weight: 700;
  display: block;
}

.item span {
  font-size: 14px;
}

.item .meta {
  color: var(--dim);
  font-size: 13px;
}

/* already monospace, so color can't carry it, code needs a surface. */
code {
  font-family: inherit;
  color: var(--ink);
  background: var(--line);
  padding: 1px 5px;
  border-radius: 3px;
}

.btn {
  display: inline-block;
  border: 1px solid var(--dim);
  border-radius: 4px;
  padding: 7px 15px;
  font-size: 14px;
  color: var(--ink);
  margin: 10px 10px 0 0;
}

.btn + p {
  margin-top: 24px;
}

.btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn.go {
  border-color: var(--accent);
  color: var(--accent);
}

.btn.go:hover {
  background: var(--accent);
  color: var(--bg);
}

.quip {
  color: var(--ink);
  font-size: 17px;
  line-height: 1.6;
  margin: 40px 0 44px;
  max-width: 44ch;
}

.quip::after {
  content: "";
  display: inline-block;
  width: 8px;
  height: 1.05em;
  margin-left: 8px;
  background: var(--accent);
  vertical-align: -3px;
  animation: blink 1.2s steps(1) infinite;
}

@media (prefers-reduced-motion: reduce) {
  .quip::after { animation: none }
}

.term {
  position: relative;
  background: #12161c;
  border: 1px solid var(--line);
  border-radius: 6px;
  margin-top: 30px;
  padding-bottom: 14px;
  font-size: 13px;
  overflow-x: auto;
}

.term::before {
  content: "\25CF  \25CF  \25CF";
  display: block;
  background: #1b212a;
  border-radius: 5px 5px 0 0;
  margin-bottom: 12px;
  padding: 6px 12px 8px;
  color: #3a4453;
  font-size: 11px;
}

.term::after {
  content: attr(data-title);
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  padding: 6px 12px 8px;
  color: var(--dim);
  font-size: 11px;
  text-align: center;
}

.term .ln {
  padding: 0 14px;
  line-height: 1.75;
  white-space: pre;
}

.term .p { color: var(--accent) }
.term .out { color: var(--ink) }
.term .c { color: var(--dim) }

.cup {
  color: var(--body);
  font: inherit;
  font-size: 12px;
  line-height: 1.25;
  margin: 0 0 14px;
  user-select: none;
  white-space: pre;
}

.cup .steam {
  color: var(--accent);
}

@keyframes blink {
  50% { opacity: 0 }
}

footer {
  margin: 54px 0 40px;
  font-size: 13px;
  color: var(--dim);
}

footer .prompt {
  margin: 0;
  font-size: 13px;
}

footer .out {
  margin: 0;
}

/* dimmer than the output above it. this is the term exit */
footer .done {
  color: #4d5766;
  margin: 0;
}

footer a {
  color: var(--dim);
  border: 0;
}

footer a:hover {
  color: var(--accent);
}

@media (max-width: 600px) {
  body { font-size: 14px }
  .row { flex-direction: column; gap: 0; margin-bottom: 12px }
  .row > span:first-child { flex: none }
  /* one line each instead of pipes stranded at a wrap point */
  footer .sep { display: none }
  footer .out a { display: block }
}