:root {
  --bg: #fbfbf9;
  --fg: #1f2328;
  --dim: #6b717a;
  --line: #e4e4e0;
  --card: #ffffff;
  --accent: #1a7f37;
  --link: #0b63c4;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d1117;
    --fg: #e6edf3;
    --dim: #8b949e;
    --line: #21262d;
    --card: #11161d;
    --accent: #7ee787;
    --link: #79c0ff;
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 72px; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 15px/1.7 var(--mono);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }

.top {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  max-width: 760px;
  margin: 0 auto;
  padding: 14px 16px;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}

.logo { color: var(--accent); font-weight: 600; }
.logo:hover { text-decoration: none; }
.cursor { animation: blink 1.1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }

nav { display: flex; flex-wrap: wrap; gap: 4px 18px; font-size: 14px; }
nav a { color: var(--dim); }
nav a:hover { color: var(--fg); text-decoration: none; }

main { max-width: 760px; margin: 0 auto; padding: 0 16px; }

section { padding: 40px 0 8px; }

.hero { display: flex; align-items: center; gap: 24px; padding-top: 56px; }
.avatar { border-radius: 50%; border: 1px solid var(--line); flex: none; }
.prompt { margin: 0; color: var(--accent); font-size: 14px; }
h1 { margin: 2px 0 6px; font-size: 28px; line-height: 1.25; letter-spacing: -0.5px; }
.lead { margin: 0; color: var(--dim); }

h2 { font-size: 17px; margin: 0 0 16px; }
.hash { color: var(--accent); }
h3 { font-size: 15px; margin: 0 0 4px; }
.at { color: var(--dim); font-weight: 400; }

p { margin: 0 0 14px; }

.tags { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; margin: 18px 0 0; padding: 0; }
.tags li {
  font-size: 13px;
  padding: 2px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--dim);
}

.timeline { list-style: none; margin: 0; padding: 0; }
.timeline li {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 16px;
  padding: 14px 0;
  border-top: 1px dashed var(--line);
}
.timeline li:first-child { border-top: 0; padding-top: 0; }
.when { color: var(--dim); font-size: 13px; padding-top: 2px; }
.what p { color: var(--dim); font-size: 14px; margin: 0; }

.grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.card {
  display: block;
  padding: 14px 16px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--fg);
  transition: border-color .15s;
}
.card:hover { border-color: var(--accent); text-decoration: none; }
.card-head { display: flex; justify-content: space-between; gap: 8px; font-weight: 600; margin-bottom: 6px; }
.card-head span:first-child::before { content: "./"; color: var(--accent); font-weight: 400; }
.lang { color: var(--dim); font-weight: 400; font-size: 12px; }
.card p { margin: 0; font-size: 13.5px; color: var(--dim); }
.dim { color: var(--dim); white-space: nowrap; }
code { font-family: var(--mono); font-size: .95em; color: var(--fg); }
.more { margin-top: 16px; font-size: 14px; }

.sub { margin: 28px 0 8px; color: var(--dim); font-weight: 400; }
.sub::before { content: "## "; color: var(--accent); }

.quote { margin: 0 0 18px; padding: 2px 0 2px 16px; border-left: 2px solid var(--accent); }
.quote blockquote { margin: 0 0 8px; font-size: 14px; }
.quote figcaption { color: var(--dim); font-size: 13px; }
.who { color: var(--fg); font-weight: 600; }

.plain { list-style: none; margin: 0; padding: 0; }
.plain li { display: grid; grid-template-columns: 220px 1fr; gap: 16px; padding: 6px 0; }
.key { color: var(--dim); }

.links { display: flex; flex-wrap: wrap; gap: 8px 24px; list-style: none; margin: 0; padding: 0; }
.links a::before { content: "→ "; color: var(--accent); }

footer {
  display: flex;
  justify-content: space-between;
  max-width: 760px;
  margin: 56px auto 0;
  padding: 20px 16px 40px;
  border-top: 1px solid var(--line);
  color: var(--dim);
  font-size: 13px;
}
footer a { color: var(--dim); }

@media (max-width: 640px) {
  body { font-size: 14px; }
  .top { flex-direction: column; align-items: flex-start; gap: 6px; }
  html { scroll-padding-top: 96px; }
  .hero { flex-direction: column; align-items: flex-start; gap: 16px; padding-top: 36px; }
  .timeline li { grid-template-columns: 1fr; gap: 2px; }
  .grid { grid-template-columns: 1fr; }
  .plain li { grid-template-columns: 1fr; gap: 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .cursor { animation: none; }
}