:root {
  --ink: #0f2d1b;
  --paper: #fafafa;
  --card: #ffffff;
  --mint: #a6ffc7;
  --line: rgba(15, 45, 27, 0.12);
  --muted: rgba(15, 45, 27, 0.68);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Helvetica Neue", Arial, Helvetica, sans-serif;
  font-size: 18px;
  line-height: 1.6;
}

a { color: var(--ink); }

.wrap {
  width: min(720px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  background: var(--ink);
  color: #fff;
}

.site-header a { color: #fff; text-decoration: none; }

.site-header .wrap {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 0;
}

.brand {
  font-weight: 700;
  letter-spacing: 0.01em;
}

.brand span {
  display: block;
  margin-top: 2px;
  color: var(--mint);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.shop-link {
  border-bottom: 1px solid transparent;
}

.shop-link:hover { border-bottom-color: var(--mint); }

.intro { padding: 48px 0 8px; }

.intro h1,
article h1 {
  margin: 0 0 12px;
  font-size: 40px;
  line-height: 1.15;
  letter-spacing: -0.03em;
}

.lede,
.meta {
  color: var(--muted);
}

.posts {
  list-style: none;
  margin: 28px 0 64px;
  padding: 0;
}

.posts li + li { margin-top: 16px; }

.posts a {
  display: block;
  padding: 22px 24px;
  text-decoration: none;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
}

.posts a:hover { border-color: var(--ink); }

.posts h2 {
  margin: 8px 0 6px;
  font-size: 24px;
  letter-spacing: -0.02em;
}

.posts time,
article time {
  color: var(--muted);
  font-size: 14px;
}

article {
  padding: 48px 0 72px;
}

article .content p { margin: 0 0 1em; }

article .content a { text-decoration-thickness: 1px; }

.back {
  display: inline-block;
  margin-bottom: 28px;
  color: var(--muted);
  text-decoration: none;
}

.back:hover { color: var(--ink); }

.site-footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

.site-footer .wrap { padding: 28px 0 40px; }

.site-footer a { color: var(--ink); }

@media (max-width: 640px) {
  body { font-size: 17px; }
  .intro h1,
  article h1 { font-size: 32px; }
  .site-header .wrap { align-items: flex-start; flex-direction: column; }
}