/* Showcase layout — used by 14-crossword / 18-conference-talk / 19-podcast-episode
   (and any future static-output demos). Matches the design tone of the rest of
   the PoC demo site without depending on the listing card grid. */
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: #0b1020;
  color: #e9eef9;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
.wrap { max-width: 880px; margin: 0 auto; padding: 48px 24px 80px; }
.back {
  display: inline-block;
  color: #9aa6c1;
  text-decoration: none;
  font-size: 13px;
  margin-bottom: 24px;
  letter-spacing: 0.02em;
}
.back:hover { color: #e9eef9; }
h1 {
  font-size: 36px;
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0 0 12px;
}
.tagline {
  color: #9aa6c1;
  font-size: 16px;
  line-height: 1.6;
  margin: 0 0 36px;
  max-width: 720px;
}
.tagline code {
  background: #1c2540;
  color: #c3cce6;
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 13px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
.puzzle-list {
  list-style: none;
  padding: 0;
  margin: 0 0 48px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
.puzzle-list .card {
  display: block;
  background: #131a30;
  border: 1px solid #1f2944;
  border-radius: 12px;
  padding: 20px 22px;
  text-decoration: none;
  color: inherit;
  transition: transform 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}
.puzzle-list .card:hover {
  transform: translateY(-1px);
  border-color: #6d28d9;
  background: #182040;
}
.puzzle-list .card .num {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: #6d28d9;
  margin-bottom: 6px;
}
.puzzle-list .card .name {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 4px;
  line-height: 1.3;
}
.puzzle-list .card .meta {
  font-size: 12px;
  color: #7a8aab;
  margin-bottom: 8px;
  letter-spacing: 0.01em;
}
.puzzle-list .card .desc {
  font-size: 14px;
  color: #c3cce6;
  line-height: 1.5;
}
.meta-box {
  background: #131a30;
  border: 1px solid #1f2944;
  border-radius: 12px;
  padding: 28px 28px 24px;
  margin: 0 0 32px;
}
.meta-box h2 {
  font-size: 16px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #9aa6c1;
  margin: 0 0 16px;
}
.meta-box ol {
  margin: 0 0 16px;
  padding-left: 20px;
  color: #c3cce6;
  font-size: 14px;
  line-height: 1.7;
}
.meta-box ol li { margin-bottom: 4px; }
.meta-box ol code {
  background: #1c2540;
  color: #c3cce6;
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 12px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
.meta-box .src {
  font-size: 12px;
  color: #7a8aab;
  margin: 16px 0 0;
  padding-top: 16px;
  border-top: 1px solid #1f2944;
}
.meta-box .src code {
  background: #1c2540;
  color: #c3cce6;
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 12px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
footer {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid #1f2944;
  font-size: 13px;
}
footer a {
  color: #9aa6c1;
  text-decoration: none;
}
footer a:hover { color: #e9eef9; }
@media (max-width: 600px) {
  .wrap { padding: 32px 16px 64px; }
  h1 { font-size: 28px; }
  .tagline { font-size: 15px; }
  .puzzle-list .card { padding: 16px 18px; }
  .puzzle-list .card .name { font-size: 16px; }
  .meta-box { padding: 22px 20px 20px; }
}