:root {
  --ink: #1c1b19;
  --muted: #6b6862;
  --line: #e3ded4;
  --paper: #fbf9f5;
  --card: #fff;
  --accent: #1f6f5c;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.65 Georgia, "Times New Roman", serif;
  -webkit-text-size-adjust: 100%;
}

.wrap { max-width: 760px; margin: 0 auto; padding: 0 20px; }

header.top {
  border-bottom: 1px solid var(--line);
  background: var(--card);
}
header.top .wrap { display: flex; align-items: baseline; gap: 18px; padding: 18px 20px; flex-wrap: wrap; }
.brand {
  font-size: 20px; font-weight: 700; letter-spacing: .3px;
  color: var(--ink); text-decoration: none;
}
.brand span { color: var(--accent); }
nav { margin-left: auto; display: flex; gap: 16px; flex-wrap: wrap; }
nav a {
  color: var(--muted); text-decoration: none;
  font: 14px/1 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  letter-spacing: .2px;
}
nav a:hover { color: var(--accent); }

.lead {
  padding: 34px 0 8px;
  font-size: 17px;
  color: var(--muted);
}
h1 { font-size: 30px; line-height: 1.25; margin: 26px 0 10px; }
h2 { font-size: 22px; margin: 32px 0 10px; }
article p { margin: 14px 0; }

.list { list-style: none; padding: 0; margin: 24px 0 40px; }
.list li {
  border-top: 1px solid var(--line);
  padding: 18px 0;
}
.list li:last-child { border-bottom: 1px solid var(--line); }
.list a { color: var(--ink); text-decoration: none; font-size: 19px; font-weight: 700; }
.list a:hover { color: var(--accent); }
.date {
  display: block; margin-bottom: 4px;
  font: 13px/1 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--muted); letter-spacing: .4px; text-transform: uppercase;
}
.excerpt { margin: 6px 0 0; color: var(--muted); font-size: 15px; }

.note {
  background: var(--card);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  padding: 14px 16px;
  margin: 24px 0;
  font-size: 15px;
}

footer {
  border-top: 1px solid var(--line);
  margin-top: 48px;
  padding: 22px 0 40px;
  color: var(--muted);
  font: 14px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}
footer a { color: var(--muted); }

.back {
  display: inline-block; margin: 26px 0 0;
  font: 14px/1 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--accent); text-decoration: none;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #ece7dd; --muted: #9d978c; --line: #2f2c27;
    --paper: #171512; --card: #1d1a16; --accent: #6fbfa6;
  }
}