:root{
  --bg:#fbfaf7;
  --fg:#1c1b19;
  --muted:#6f6a63;
  --rule:#e3dfd7;
  --link:#1f5f4e;
  --link-hover:#0b3d30;
  --code-bg:#f3f0ea;
  --code-fg:#33302b;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --serif:"Songti SC","Noto Serif CJK SC","Source Han Serif SC",SimSun,Georgia,serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
}
@media (prefers-color-scheme:dark){
  :root{
    --bg:#16161a;
    --fg:#e4e1dc;
    --muted:#98938b;
    --rule:#2c2c31;
    --link:#7fc4ab;
    --link-hover:#a5dcc7;
    --code-bg:#1f1f24;
    --code-fg:#ddd9d2;
  }
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--fg);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
::selection{background:var(--link);color:var(--bg)}

.wrap{
  max-width:44rem;
  margin:0 auto;
  padding:0 1.5rem;
}

/* ---- header ---- */
header.site{
  border-bottom:1px solid var(--rule);
  margin-bottom:3rem;
}
header.site .wrap{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:1.5rem;
  padding-top:1.75rem;
  padding-bottom:1.25rem;
  flex-wrap:wrap;
}
.brand{
  font-family:var(--mono);
  font-size:1rem;
  letter-spacing:-0.01em;
  color:var(--fg);
  text-decoration:none;
  font-weight:600;
}
.brand .tld{color:var(--muted);font-weight:400}
header.site nav{
  display:flex;
  gap:1.4rem;
  font-size:0.92rem;
}
header.site nav a{
  color:var(--muted);
  text-decoration:none;
}
header.site nav a:hover,
header.site nav a[aria-current]{color:var(--fg)}

/* ---- links ---- */
a{
  color:var(--link);
  text-decoration:underline;
  text-decoration-thickness:1px;
  text-underline-offset:3px;
  transition:color .15s ease;
}
a:hover{color:var(--link-hover)}

/* ---- type ---- */
h1,h2,h3{
  line-height:1.3;
  font-weight:600;
  letter-spacing:-0.01em;
}
h1{font-size:1.9rem;margin:0 0 .5rem}
h2{font-size:1.25rem;margin:2.5rem 0 .75rem}
h3{font-size:1.05rem;margin:2rem 0 .5rem}
p{margin:0 0 1.15rem}
ul,ol{margin:0 0 1.15rem;padding-left:1.4rem}
li{margin:0 0 .4rem}
hr{
  border:0;
  border-top:1px solid var(--rule);
  margin:2.5rem 0;
}
small,.small{font-size:.88rem;color:var(--muted)}

/* ---- intro ---- */
.intro{
  font-family:var(--serif);
  font-size:1.12rem;
  line-height:1.85;
  margin-bottom:2.5rem;
}

/* ---- post list ---- */
h2.section{
  font-size:.78rem;
  font-family:var(--mono);
  font-weight:600;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--muted);
  margin:2.5rem 0 1rem;
}
ul.posts{
  list-style:none;
  padding:0;
  margin:0 0 2rem;
}
ul.posts li{
  display:flex;
  align-items:baseline;
  gap:1rem;
  padding:.55rem 0;
  border-bottom:1px solid var(--rule);
  margin:0;
}
ul.posts li:first-child{border-top:1px solid var(--rule)}
ul.posts time{
  font-family:var(--mono);
  font-size:.82rem;
  color:var(--muted);
  flex:0 0 6.2rem;
  font-variant-numeric:tabular-nums;
}
ul.posts a{
  text-decoration:none;
  color:var(--fg);
}
ul.posts a:hover{color:var(--link)}
ul.posts .tag{
  margin-left:auto;
  font-family:var(--mono);
  font-size:.75rem;
  color:var(--muted);
}

/* ---- article ---- */
article.post header{margin-bottom:2.25rem}
article.post .meta{
  font-family:var(--mono);
  font-size:.82rem;
  color:var(--muted);
  margin-bottom:.9rem;
  display:flex;
  gap:1.1rem;
  flex-wrap:wrap;
}
article.post .body{font-family:var(--serif);font-size:1.06rem;line-height:1.9}
article.post .body h2{font-family:var(--sans);font-size:1.2rem;margin-top:2.4rem}
article.post .body h3{font-family:var(--sans);font-size:1.02rem;margin-top:1.9rem}
article.post .body ul,
article.post .body ol{font-family:var(--sans);font-size:.98rem;line-height:1.8}

code{
  font-family:var(--mono);
  font-size:.88em;
  background:var(--code-bg);
  color:var(--code-fg);
  padding:.12em .38em;
  border-radius:3px;
}
pre{
  background:var(--code-bg);
  border:1px solid var(--rule);
  border-radius:6px;
  padding:1rem 1.1rem;
  overflow-x:auto;
  margin:0 0 1.4rem;
  line-height:1.55;
}
pre code{
  background:none;
  padding:0;
  font-size:.84rem;
  color:var(--code-fg);
}
blockquote{
  margin:1.5rem 0;
  padding:.1rem 0 .1rem 1.1rem;
  border-left:2px solid var(--rule);
  color:var(--muted);
}
blockquote p:last-child{margin-bottom:0}

/* ---- footer ---- */
footer.site{
  border-top:1px solid var(--rule);
  margin-top:4rem;
  padding:1.6rem 0 3rem;
  font-size:.84rem;
  color:var(--muted);
  font-family:var(--mono);
}
footer.site p{margin:0 0 .35rem}

/* ---- misc ---- */
.back{
  font-family:var(--mono);
  font-size:.84rem;
  text-decoration:none;
}
.tagline{color:var(--muted);font-size:.95rem;margin-top:-.25rem}

@media (max-width:520px){
  body{font-size:16px}
  h1{font-size:1.55rem}
  ul.posts li{flex-wrap:wrap;gap:.15rem .7rem}
  ul.posts time{flex:0 0 auto}
  ul.posts .tag{margin-left:0}
  header.site .wrap{padding-top:1.25rem}
}