/* Shared by every page. Blog-post-only styles are at the bottom.
   Terminal theme: near-black page, cream text, amber accent. */

:root {
  color-scheme: dark;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font: 15px/1.7 ui-monospace, menlo, monospace;
  color: #e8e4da;
  background: #111;
  -webkit-text-size-adjust: 100%;
  /* Same layout as openai.com articles: a 676px text column, centered,
     with the section nav floating in the left margin. 740px = 676px
     text + 2 × 32px padding. */
  display: grid;
  grid-template-columns: 1fr 740px 1fr;
  max-width: 1408px;
  margin: 0 auto;
  padding: 48px 16px;
}

.page {
  grid-column: 2;
}

.page > * {
  padding: 24px 32px;
}

/* Side nav: floats in the left margin as you scroll. toc.js marks the
   section you're reading. */
.toc {
  position: sticky;
  top: 48px;
  align-self: start;
  margin-right: 32px;
  padding: 24px;
  border-radius: 16px;
  background: #1b1b1b;
  font-size: 12px;
}

.toc a {
  display: block;
  padding: 4px 0;
  text-decoration: none;
  color: #777;
}

.toc [aria-current] {
  color: #e8e4da;
}

/* Header: your name on the left, nav pills on the right. */
header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 8px 24px;
}

header > a {
  font-size: 22px;
  letter-spacing: -0.04em;
}

header nav {
  margin: -4px -12px;
}

header nav a {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
}

header nav a + a {
  margin-left: 4px;
}

/* GitHub and LinkedIn icons: same color as the text, so hover works too. */
header nav svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
  vertical-align: -3px;
}

[aria-current="page"] {
  background: #e8e4da;
  color: #111;
}

/* Links */
a {
  color: inherit;
  text-underline-offset: 4px;
  text-decoration-color: #555;
  transition: color 0.15s;
}

a:hover,
a:focus {
  color: #f5b74a;
}

header a,
.links a {
  text-decoration: none;
}

.links {
  margin-top: 16px;
}

.links a + a {
  margin-left: 16px;
}

/* Type */
h1,
h2,
h3 {
  font-size: inherit;
  font-weight: normal;
}

h1 {
  font-size: 26px;
  line-height: 1.4;
  color: #fff;
}

/* Blinking cursor after the homepage headline. */
#about h1::after {
  content: "▍";
  color: #f5b74a;
  animation: blink 1s steps(1) infinite;
}

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

@media (prefers-reduced-motion: reduce) {
  #about h1::after {
    animation: none;
  }
}

/* Section labels: small, gray, spaced out. */
section > h2,
.label {
  margin-bottom: 16px;
  font-size: 11px;
  letter-spacing: 0.12em;
  line-height: 1.7;
  color: #777;
  text-transform: uppercase;
}

section > h2::before,
.label::before {
  content: "// ";
}

section > h3 {
  font-weight: bold;
  color: #f5b74a;
}

section + section {
  margin-top: 16px;
}

p + p {
  margin-top: 16px;
}

.muted {
  color: #8a8a8a;
}

/* Small, lighter line tucked right under the one above. */
.note {
  margin-top: 0;
  font-size: 13px;
  color: #6e6e6e;
}

/* Homepage intro: space under the headline, school line in cream. */
#about h1 {
  margin-bottom: 20px;
}

#about .muted {
  color: #e8e4da;
}

#about .note {
  margin-top: 4px;
}

/* Lists of posts: title on the left, date on the right. */
section ul {
  list-style: none;
}

section li {
  display: flex;
  justify-content: space-between;
  gap: 16px;
}

section li + li {
  margin-top: 8px;
}

::selection {
  background: #f5b74a;
  color: #111;
}

/* Blog posts */
article h1 {
  font-size: 20px;
  font-weight: bold;
}

article h2 {
  font-weight: bold;
  margin-top: 32px;
}

article p,
article ul,
article ol,
article pre,
article img {
  margin-top: 16px;
}

article ul,
article ol {
  padding-left: 24px;
}

article img {
  display: block;
  max-width: 100%;
  height: auto;
}

article code {
  font-family: inherit;
  background: #1f1f1f;
  padding: 0 4px;
}

article pre {
  background: #1b1b1b;
  padding: 16px;
  overflow-x: auto;
}

article pre code {
  padding: 0;
}

/* Not enough room for the side nav: hide it and pin the header instead. */
@media (max-width: 1100px) {
  body {
    display: block;
  }

  .toc {
    display: none;
  }

  .page {
    max-width: 740px;
    margin: 0 auto;
  }

  header {
    position: sticky;
    top: 0;
    background: #111;
  }
}

@media (max-width: 600px) {
  body {
    font-size: 14px;
    padding: 16px;
  }

  .page > * {
    padding: 20px 16px;
  }
}