:root {
  --bg: #fbf6f0;
  --card: #ffffff;
  --ink: #3b3346;
  --muted: #8a8196;
  --accent: #e07a56;
  --line: #eee4da;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1c1a24;
    --card: #26232f;
    --ink: #efe7dd;
    --muted: #a79fb2;
    --accent: #f2a98e;
    --line: #34303e;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.6 "Nunito", system-ui, sans-serif;
}
main {
  max-width: 720px;
  margin: 0 auto;
  padding: 32px 16px 64px;
}
h1 { font-size: 30px; line-height: 1.2; margin: 0 0 4px; font-weight: 800; }
h2 { font-size: 20px; margin: 32px 0 8px; color: var(--accent); font-weight: 800; }
.date { color: var(--muted); font-size: 14px; margin: 0 0 24px; }
.card {
  background: var(--card);
  border-radius: 20px;
  padding: 16px 20px;
  margin: 16px 0;
  border: 1px solid var(--line);
}
a { color: var(--accent); }
ul { padding-left: 22px; }
li { margin: 4px 0; }
nav { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 40px; font-size: 15px; }
.btn {
  display: inline-block; box-sizing: border-box; text-align: center;
  padding: 14px 20px; border-radius: 18px; font: inherit; font-weight: 800;
  text-decoration: none; border: 0; cursor: pointer; margin: 4px 0;
}
.btn.primary { background: var(--ink); color: var(--bg); }
.btn.secondary { background: var(--card); color: var(--ink); border: 1px solid var(--line); }
.btn-group { display: flex; gap: 12px; flex-wrap: wrap; margin: 12px 0; }
.btn-group .btn { flex: 1 1 180px; }