/* Shared layout for cipher & Enigma SEO cluster landing pages */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --bg: #0d0f14;
  --surface: #161b25;
  --border: #2a3347;
  --text: #e2e8f0;
  --text-dim: #8896a8;
  --accent: #4f8ef7;
  --brass: #c9a227;
}
body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  min-height: 100vh;
  line-height: 1.65;
  padding: 2rem 1rem 3.5rem;
}
body.cipher-seo--vigenere { --accent: #3ecf8e; }
body.cipher-seo--playfair { --accent: #a78bfa; }
body.cipher-seo--rail { --accent: #f7b84f; }
body.cipher-seo--atbash { --accent: #7dd3fc; }
.wrap { max-width: 820px; margin: 0 auto; }
.wrap .section-shell { max-width: none; margin-top: 1.75rem; }
.back {
  display: inline-block;
  color: #9aa4b2;
  text-decoration: none;
  font-size: 0.9rem;
  margin-bottom: 1.25rem;
}
.back:hover { color: #fff; }
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.75rem 1.5rem 2rem;
}
.card h1 {
  font-size: 1.65rem;
  font-weight: 700;
  margin-bottom: 0.65rem;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--accent) 0%, #e2e8f0 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.lead { color: var(--text-dim); font-size: 0.95rem; margin-bottom: 1.35rem; }
.content-block { margin-top: 1.5rem; padding-top: 1.35rem; border-top: 1px solid var(--border); }
.content-block:first-of-type { border-top: none; padding-top: 0; margin-top: 0.25rem; }
.card h2 { font-size: 1.15rem; margin-bottom: 0.5rem; color: var(--text); }
.card h3 { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-dim); margin-top: 0.85rem; margin-bottom: 0.35rem; }
.card p { color: var(--text-dim); font-size: 0.93rem; margin-bottom: 0.75rem; }
.card ul, .card ol { color: var(--text-dim); font-size: 0.93rem; margin: 0 0 0.75rem 1.25rem; }
.card li { margin-bottom: 0.35rem; }
.card a:not(.site-footer-nav a):not(.back):not(.cluster-pill) { color: var(--accent); }
.example-box {
  font-family: ui-monospace, 'SF Mono', Menlo, monospace;
  font-size: 0.88rem;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.85rem 1rem;
  margin: 0.75rem 0 1rem;
  color: var(--text);
  line-height: 1.5;
}
.example-box dt { color: var(--brass); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.05em; margin-top: 0.5rem; }
.example-box dt:first-child { margin-top: 0; }
.example-box dd { margin: 0.15rem 0 0; }
.cta-strip {
  border-left: 3px solid var(--brass);
  padding: 0.75rem 0 0.75rem 1rem;
  margin: 1.25rem 0 0;
  background: rgba(201, 162, 39, 0.08);
  border-radius: 0 8px 8px 0;
  color: var(--text-dim);
  font-size: 0.9rem;
}
.cta-strip a { font-weight: 600; }
.cluster-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 1rem 0 0.5rem;
}
.cluster-pill {
  display: inline-block;
  padding: 0.35rem 0.65rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--text-dim) !important;
  font-size: 0.8rem;
  text-decoration: none;
}
.cluster-pill:hover { border-color: var(--accent); color: #fff !important; }
.cluster-pill.is-current {
  border-color: var(--accent);
  color: var(--text) !important;
  background: rgba(79, 142, 247, 0.12);
}
.hub-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 8px;
  margin: 1rem 0;
}
.hub-grid a {
  font-size: 0.82rem;
  padding: 0.5rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  text-decoration: none;
  color: var(--text-dim) !important;
}
.hub-grid a:hover { border-color: var(--accent); color: #fff !important; }
.faq-item { margin-top: 1rem; }
.faq-item h3 { text-transform: none; letter-spacing: normal; font-size: 0.95rem; color: var(--text); }
.site-footer-nav {
  margin-top: 1.75rem;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  justify-content: center;
  align-items: center;
}
.site-footer-nav a { color: #9aa4b2; text-decoration: none; font-size: 13px; }
.site-footer-nav a:hover { color: #ffffff; }
.footer-contact {
  margin-top: 14px;
  text-align: center;
  font-size: 13px;
  color: var(--text-dim);
  line-height: 1.5;
}
.footer-contact a { color: var(--accent); word-break: break-all; text-decoration: none; }
.footer-contact a:hover { text-decoration: underline; }