@font-face {
  font-display: swap;
  font-family: "Atkinson Hyperlegible";
  font-style: normal;
  font-weight: 400;
  src: url("/fonts/atkinson-hyperlegible-next-v7-latin-regular.woff2") format("woff2");
}

@font-face {
  font-display: swap;
  font-family: "Atkinson Hyperlegible";
  font-style: normal;
  font-weight: 700;
  src: url("/fonts/atkinson-hyperlegible-next-v7-latin-700.woff2") format("woff2");
}

@font-face {
  font-display: swap;
  font-family: "JetBrains Mono";
  font-style: normal;
  font-weight: 400;
  src: url("/fonts/jetbrains-mono-v24-latin-regular.woff2") format("woff2");
}

@font-face {
  font-display: swap;
  font-family: "JetBrains Mono";
  font-style: normal;
  font-weight: 700;
  src: url("/fonts/jetbrains-mono-v24-latin-700.woff2") format("woff2");
}

:root {
  --text: #263238;
  --muted: #6f7c82;
  --line: #d9e1e5;
  --accent: #3e95ba;
  --link: #ad1457;
  --surface: #f8fafb;
  --max-width: 720px;
  --font-body: "Atkinson Hyperlegible", -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans", "Yu Gothic", sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: #ffffff;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--link);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

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

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: calc(var(--max-width) + 2rem);
  margin: 0 auto;
  padding: 0.75rem 1rem;
}

.site-brand,
.site-nav a {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--text);
  text-decoration: none;
}

.site-brand img,
.site-nav img {
  width: 1.35rem;
  height: 1.35rem;
}

.site-brand {
  font-weight: 400;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.85rem;
  font-size: 0.9rem;
}

main {
  max-width: calc(var(--max-width) + 2rem);
  margin: 0 auto 4rem;
  padding: 0 1rem;
}

.content {
  max-width: var(--max-width);
  margin: 1.75rem auto 0;
}

h1,
h2,
h3 {
  line-height: 1.35;
  letter-spacing: 0;
}

h1 {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 1.25rem;
  font-size: 1.45rem;
  font-weight: 400;
}

.home h1 {
  display: block;
  font-size: 1.65rem;
}

h2 {
  margin: 2rem 0 0.75rem;
  padding-bottom: 0.3rem;
  border-bottom: 1px dashed var(--line);
  color: var(--accent);
  font-size: 1.25rem;
  font-weight: 400;
}

h3 {
  margin: 1.5rem 0 0.5rem;
  color: var(--accent);
  font-size: 1.1rem;
  font-weight: 400;
}

.heading-icon {
  width: 1.25rem;
  height: 1.25rem;
}

p,
ul {
  margin: 0.75rem 0;
}

code,
time {
  font-family: var(--font-mono);
  font-size: 0.95em;
}

blockquote {
  margin: 1rem 0;
  padding: 0.25rem 1rem;
  border-left: 0.25rem solid var(--line);
  color: var(--muted);
}

.w40 {
  display: block;
  width: min(40%, 18rem);
  margin-inline: auto;
}

.date,
.muted {
  color: var(--muted);
}

.page-list {
  padding: 0;
  list-style: none;
}

.page-list li {
  display: flex;
  gap: 0.75rem;
  padding: 0.35rem 0;
  border-bottom: 1px solid var(--surface);
}

@media (max-width: 600px) {
  .site-header {
    align-items: flex-start;
  }

  .site-nav a span {
    display: none;
  }

  .content {
    margin-top: 1.25rem;
  }
}