:root {
  --ink:#12303a; --muted:#5b7480; --line:#d6e3e8; --accent:#0e7c8b;
  --bg:#f4fafb; --card:#ffffff; --code:#eef5f6;
}
* { box-sizing: border-box; }
body { font: 17px/1.65 -apple-system, system-ui, "Segoe UI", sans-serif;
       color: var(--ink); background: var(--bg); margin: 0; }
.wrap { max-width: 46rem; margin: 0 auto; padding: 1.25rem 1.25rem 5rem; }
.topbar { display: flex; justify-content: space-between; align-items: center;
          padding: .5rem 0 1.25rem; border-bottom: 1px solid var(--line); margin-bottom: 2rem;
          font-size: .9rem; }
.brand { font-weight: 700; color: var(--accent); text-decoration: none; }
.who { color: var(--muted); }
.kicker { text-transform: uppercase; letter-spacing: .16em; font-size: .72rem;
          color: var(--accent); font-weight: 700; margin-bottom: .4rem; }
h1 { font-size: 2rem; line-height: 1.15; letter-spacing: -.02em; margin: 0 0 1.5rem; }
h2 { font-size: 1.3rem; margin: 2.2rem 0 .7rem; }
h3 { font-size: 1.08rem; margin: 1.6rem 0 .5rem; }
p, li { margin: .5rem 0; }
a { color: var(--accent); }
hr { border: none; border-top: 1px solid var(--line); margin: 2rem 0; }
code { font: .88em ui-monospace, Menlo, monospace; background: var(--code);
       padding: .12em .4em; border-radius: .3rem; }
pre { background: var(--code); padding: 1rem 1.1rem; border-radius: .6rem; overflow-x: auto; }
pre code { background: none; padding: 0; }
table { border-collapse: collapse; width: 100%; margin: 1rem 0; font-size: .96rem; }
th, td { border: 1px solid var(--line); padding: .5rem .7rem; text-align: left; vertical-align: top; }
th { background: #e9f3f5; }
blockquote { margin: 1rem 0; padding: .3rem 1rem; border-left: 3px solid var(--accent); color: var(--muted); }
ul, ol { padding-left: 1.4rem; }
.pagelist { list-style: none; padding: 0; }
.pagelist li { padding: .6rem 0; border-bottom: 1px solid var(--line); }
.tag { font-size: .7rem; text-transform: uppercase; letter-spacing: .1em; color: var(--muted);
       border: 1px solid var(--line); border-radius: 1rem; padding: .05rem .5rem; margin-left: .5rem; }
.pagelist .date { float: right; color: var(--muted); font-size: .82rem; font-variant-numeric: tabular-nums; }
.muted { color: var(--muted); }

/* GFM task lists ("- [ ]" / "- [x]") rendered as checkboxes */
ul.task-list { list-style: none; padding-left: .2rem; }
ul.task-list .task-list { padding-left: 1.4rem; }
li.task-list-item { position: relative; padding-left: 1.9rem; }
.task-list-control { position: absolute; left: 0; top: .18em; cursor: default; }
.task-list-control input { position: absolute; opacity: 0; width: 0; height: 0; }
.task-list-indicator {
  display: inline-block; width: 1.15rem; height: 1.15rem;
  border: 1.5px solid var(--line); border-radius: .28rem; background: var(--card);
}
.task-list-control input:checked ~ .task-list-indicator {
  background: var(--accent); border-color: var(--accent);
}
.task-list-control input:checked ~ .task-list-indicator::after {
  content: ""; position: absolute; left: .38rem; top: .16rem;
  width: .32rem; height: .62rem; border: solid #fff;
  border-width: 0 .16rem .16rem 0; transform: rotate(40deg);
}
/* A checked item's text reads as done */
li.task-list-item:has(input:checked) { color: var(--muted); }
footer { margin-top: 3rem; padding-top: 1.2rem; border-top: 1px solid var(--line);
         color: var(--muted); font-size: .82rem; }