:root {
  --bg: #fdfcfa;
  --text: #1b1b1a;
  --muted: #6f6d68;
  --rule: #e5e2dc;
  --code-bg: #f3f1ec;
  --link: #1b1b1a;
  --underline: #b9b6af;
  --heat-0: #ebe9e4;
  --heat-1: #cbc8c1;
  --heat-2: #9c9890;
  --heat-3: #5e5b55;
  --heat-4: #1b1b1a;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #161615;
    --text: #e8e6e1;
    --muted: #9b9891;
    --rule: #2e2d2a;
    --code-bg: #21201e;
    --link: #f2f0eb;
    --underline: #5f5c57;
    --heat-0: #262523;
    --heat-1: #4a4844;
    --heat-2: #7a7771;
    --heat-3: #b3b0a9;
    --heat-4: #f2f0eb;
  }
}

html {
  font-size: 112.5%;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 1rem/1.6 Charter, "Bitstream Charter", "Iowan Old Style", "Sitka Text", Cambria, Georgia, serif;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: 36rem;
  margin: 0 auto;
  padding: 2.5rem 1rem 3rem;
}

a {
  color: var(--link);
  text-decoration-color: var(--underline);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}
a:hover {
  text-decoration-color: currentColor;
}

/* Header & footer */

header.site {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.25rem 1.25rem;
  margin-bottom: 3rem;
}
header.site .name {
  margin-right: auto;
  color: var(--text);
  font-weight: 700;
  text-decoration: none;
}
header.site nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.25rem;
}
@media (max-width: 30rem) {
  header.site nav {
    gap: 0.25rem 0.9rem;
  }
}
header.site .social {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  align-self: center;
}
header.site .social a {
  display: inline-flex;
}
header.site .social svg {
  width: 0.95rem;
  height: 0.95rem;
  fill: currentColor;
}
header.site nav a {
  color: var(--muted);
  text-decoration: none;
}
header.site nav a:hover {
  color: var(--text);
}
header.site nav a[aria-current] {
  color: var(--text);
  font-weight: 700;
}

footer.site {
  margin-top: 4rem;
  padding-top: 1rem;
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-size: 0.85rem;
}
footer.site a {
  color: inherit;
}

/* Text */

h1, h2, h3 {
  line-height: 1.25;
  text-wrap: balance;
}
h1 {
  font-size: 1.6rem;
  margin: 0 0 0.35rem;
}
h2 {
  font-size: 1.2rem;
  margin: 2.5rem 0 0.75rem;
}
h3 {
  font-size: 1rem;
  margin: 2rem 0 0.5rem;
}
p, li {
  text-wrap: pretty;
}
.meta {
  margin: 0 0 2rem;
  color: var(--muted);
  font-size: 0.85rem;
}
.meta a {
  color: inherit;
}

blockquote {
  margin: 1.5rem 0;
  padding-left: 1rem;
  border-left: 2px solid var(--rule);
}

hr {
  margin: 2.5rem 0;
  border: 0;
  border-top: 1px solid var(--rule);
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.82em;
}
pre {
  overflow-x: auto;
  padding: 0.9rem 1rem;
  background: var(--code-bg);
  border-radius: 4px;
  line-height: 1.5;
}
pre code {
  white-space: pre-wrap;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}
th, td {
  padding: 0.35rem 0.5rem;
  border: 1px solid var(--rule);
  text-align: left;
  vertical-align: top;
}

/* Media */

img, video {
  max-width: 100%;
  height: auto;
}
iframe {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  margin: 1.5rem 0;
  border: 0;
}
figure {
  margin: 2rem 0;
}
figure img, figure video {
  display: block;
}
figcaption {
  margin-top: 0.5rem;
  color: var(--muted);
  font-size: 0.85rem;
}
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(8rem, 1fr));
  gap: 0.4rem;
}
.gallery img {
  width: 100%;
  height: 100%;
  aspect-ratio: 1;
  object-fit: cover;
}
.gallery figcaption {
  grid-column: 1 / -1;
}

/* Footnotes (markdown-it-footnote) */

.footnotes-sep {
  margin-top: 3rem;
}
.footnotes {
  color: var(--muted);
  font-size: 0.85rem;
}
.footnote-ref a {
  text-decoration: none;
}

/* Lists of posts */

.intro {
  margin: 0 0 2.5rem;
}
h1 .count,
h2 .count {
  margin-left: 0.4rem;
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 400;
}
.portrait {
  margin: -2rem 0 2rem; /* the faded top would otherwise read as extra space under the header */
}
/* Fade the top of the photo into the page background. */
.portrait img {
  width: 100%;
  -webkit-mask-image: linear-gradient(to bottom, transparent 0%, #000 55%);
  mask-image: linear-gradient(to bottom, transparent 0%, #000 55%);
}
.more {
  margin-top: 1rem;
  font-size: 0.9rem;
}
.topic-line {
  margin: 2rem 0 0;
  color: var(--muted);
  font-size: 0.85rem;
  line-height: 1.8;
}
.topic-line a {
  color: inherit;
}
ul.posts {
  margin: 0;
  padding: 0;
  list-style: none;
}
ul.posts li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: 0.15rem 0;
}
ul.posts a {
  text-decoration: none;
}
ul.posts a:hover {
  text-decoration: underline;
}
ul.posts time {
  flex-shrink: 0;
  color: var(--muted);
  font-size: 0.8rem;
  font-variant-numeric: tabular-nums;
}
ul.topics {
  columns: 2;
  padding-left: 1.1rem;
}

.post-nav {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  margin-top: 3rem;
  font-size: 0.9rem;
}
.post-nav a[rel="next"] {
  text-align: right;
}

/* GitHub activity */

.activity {
  margin: 0 0 1rem;
}
.activity svg {
  display: block;
  width: 100%;
  height: auto;
}
.activity text {
  fill: var(--muted);
  font: 10px system-ui, -apple-system, sans-serif;
}
.activity .h0 { fill: var(--heat-0); }
.activity .h1 { fill: var(--heat-1); }
.activity .h2 { fill: var(--heat-2); }
.activity .h3 { fill: var(--heat-3); }
.activity .h4 { fill: var(--heat-4); }
.activity figcaption {
  margin-top: 0.25rem;
}
.activity figcaption a {
  color: inherit;
}