:root {
  color-scheme: light;
  --ink: #111;
  --muted: #5f5f5f;
  --line: #d7d7d7;
  --paper: #fff;
  --code: #f3f3f3;
  --serif: Georgia, "Noto Serif TC", "Songti TC", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans TC", sans-serif;
  --mono: "SFMono-Regular", Consolas, monospace;
}

* {
  box-sizing: border-box;
}

html {
  font-size: 17px;
}

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.7;
  margin: 0;
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

.site-header,
.site-main,
.site-footer {
  margin: 0 auto;
  max-width: 900px;
  padding-left: 1.4rem;
  padding-right: 1.4rem;
}

.site-header {
  border-bottom: 1px solid var(--line);
  padding-bottom: 1.4rem;
  padding-top: 2.4rem;
}

.site-title {
  font-family: var(--serif);
  font-size: 1.8rem;
  font-weight: 700;
  text-decoration: none;
}

.site-description {
  color: var(--muted);
  margin: 0.25rem 0 0;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1rem;
}

.site-nav a {
  font-size: 0.88rem;
}

.site-main {
  padding-bottom: 5rem;
  padding-top: 3.5rem;
}

.intro {
  border-bottom: 1px solid var(--line);
  margin-bottom: 2.8rem;
  padding-bottom: 2.8rem;
}

.eyebrow,
.post-meta {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  font-family: var(--serif);
  line-height: 1.25;
}

h1 {
  font-size: clamp(2.2rem, 7vw, 4rem);
  letter-spacing: -0.035em;
  margin: 0.5rem 0 0;
}

.intro p:last-child,
.page-lede,
.post-deck {
  color: var(--muted);
  margin-bottom: 0;
  max-width: 680px;
}

.section-heading {
  align-items: baseline;
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.7rem;
}

.section-heading h2 {
  font-size: 1.55rem;
  margin: 0;
}

.section-heading a {
  font-size: 0.84rem;
}

.post-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.post-item {
  border-top: 1px solid var(--line);
  padding: 1.35rem 0 1.5rem;
}

.post-item h2,
.post-item h3 {
  font-size: 1.35rem;
  margin: 0.25rem 0 0;
}

.post-item h2 a,
.post-item h3 a {
  text-decoration: none;
}

.post-item h2 a:hover,
.post-item h2 a:focus-visible,
.post-item h3 a:hover,
.post-item h3 a:focus-visible {
  text-decoration: underline;
}

.post-item p {
  color: var(--muted);
  font-size: 0.93rem;
  margin: 0.45rem 0 0;
}

.post-list.compact .post-item {
  align-items: baseline;
  display: grid;
  gap: 1.2rem;
  grid-template-columns: 9rem minmax(0, 1fr);
  padding: 0.9rem 0;
}

.post-list.compact h2 {
  font-size: 1.08rem;
  margin: 0;
}

.post-header {
  border-bottom: 1px solid var(--line);
  margin-bottom: 2.7rem;
  padding-bottom: 2rem;
}

.post-header h1 {
  font-size: clamp(2.2rem, 6vw, 3.8rem);
}

.prose {
  font-family: var(--serif);
  font-size: 1.02rem;
  line-height: 1.95;
}

.prose h2 {
  border-bottom: 1px solid var(--line);
  font-size: 1.55rem;
  margin: 2.6rem 0 1rem;
  padding-bottom: 0.35rem;
}

.prose h3 {
  font-size: 1.25rem;
  margin: 2rem 0 0.8rem;
}

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

.prose blockquote {
  border-left: 2px solid var(--ink);
  color: var(--muted);
  margin-left: 0;
  padding-left: 1rem;
}

.prose code {
  background: var(--code);
  font-family: var(--mono);
  font-size: 0.85em;
  padding: 0.12rem 0.28rem;
}

.prose pre {
  background: var(--ink);
  color: var(--paper);
  overflow-x: auto;
  padding: 1rem;
}

.prose pre code {
  background: transparent;
  padding: 0;
}

.prose table {
  border-collapse: collapse;
  display: block;
  overflow-x: auto;
}

.prose th,
.prose td {
  border: 1px solid var(--line);
  padding: 0.45rem 0.65rem;
  text-align: left;
}

.source,
.post-footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.84rem;
  margin-top: 3rem;
  padding-top: 1rem;
}

.site-footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.78rem;
  padding-bottom: 2rem;
  padding-top: 1.2rem;
}

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

  .site-header {
    padding-top: 1.5rem;
  }

  .site-main {
    padding-top: 2.5rem;
  }

  .post-list.compact .post-item {
    display: block;
  }

  .post-list.compact h2 {
    margin-top: 0.2rem;
  }
}