/* Shared styles for the /guide/ pages (how-to articles).
   Kept deliberately close to what-is-good-lock.html so the whole site reads
   as one piece: same fonts, same accent colours, same measure. */
:root {
  --ink: #1a1a1a;
  --sub: #6b7280;
  --line: #eee;
  --accent: var(--color-mediumturquoise, #69c0c3);
  --accent2: var(--color-mediumslateblue, #6670ff);
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: var(--font-gmarket-sans-ttf), 'Apple SD Gothic Neo', sans-serif;
  color: var(--ink);
  background: #fff;
  line-height: 1.6;
}
.wrap {
  max-width: 640px;
  margin: 0 auto;
  padding: 40px 24px 80px;
}
.back-link {
  display: inline-block;
  font-size: 13px;
  color: var(--sub);
  text-decoration: none;
  margin-bottom: 24px;
}
.back-link:hover { color: var(--ink); }
h1 {
  font-size: 26px;
  line-height: 1.4;
  margin: 0 0 12px;
}
.lede {
  font-size: 15px;
  color: var(--sub);
  margin: 0 0 32px;
}
h2 {
  font-size: 19px;
  color: var(--accent);
  margin: 44px 0 14px;
}
h3 {
  font-size: 16px;
  margin: 28px 0 10px;
}
p { font-size: 15px; margin: 0 0 14px; }
ul, ol { font-size: 15px; padding-left: 20px; margin: 0 0 14px; }
li { margin-bottom: 8px; }
strong { font-weight: 700; }
a { color: var(--accent2); }
.note {
  font-size: 13px;
  color: var(--sub);
  background: #fafafa;
  border-left: 3px solid var(--line);
  padding: 14px 16px;
  margin: 24px 0;
}
.steps { counter-reset: step; list-style: none; padding: 0; }
.steps > li {
  counter-increment: step;
  position: relative;
  padding-left: 34px;
  margin-bottom: 16px;
}
.steps > li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 1px;
  width: 23px;
  height: 23px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  text-align: center;
  line-height: 23px;
}
.cta {
  display: block;
  text-align: center;
  background: var(--accent2);
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  font-size: 15px;
  padding: 16px;
  border-radius: 12px;
  margin: 32px 0;
}
.cta:hover { opacity: 0.92; }
.cta-sub {
  display: block;
  text-align: center;
  font-size: 13px;
  margin: -20px 0 32px;
}
.cta-sub a { color: var(--sub); }
.post-list { list-style: none; padding: 0; margin: 0; }
.post-list li {
  border-bottom: 1px solid var(--line);
  padding: 18px 0;
  margin: 0;
}
.post-list a {
  font-size: 16px;
  font-weight: 700;
  text-decoration: none;
  color: var(--ink);
}
.post-list a:hover { color: var(--accent2); }
.post-list p { font-size: 13.5px; color: var(--sub); margin: 6px 0 0; }
.meta { font-size: 12.5px; color: var(--sub); margin: 0 0 28px; }
.related { margin-top: 48px; padding-top: 20px; border-top: 1px solid var(--line); }
.related h2 { font-size: 16px; margin: 0 0 10px; }
.related ul { padding-left: 18px; }
footer {
  margin-top: 60px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  color: var(--sub);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
footer a { color: inherit; }
@media (max-width: 420px) {
  .wrap { padding-left: 18px; padding-right: 18px; }
  h1 { font-size: 23px; }
}