/* Resource / SEO subpage layout — extracted from prototype _template.html */

.sub-hero { padding: 96px 0 72px; position: relative; overflow: hidden; }
.sub-hero .bg-grid {
  position: absolute; inset: 0; opacity: .4;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, black, transparent);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, black, transparent);
  pointer-events: none;
}
.sub-hero .container { position: relative; }
.sub-crumbs {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12.5px; color: var(--ink-muted);
  margin-bottom: 20px; font-family: var(--font-mono);
}
.sub-crumbs a { color: var(--ink-muted); }
.sub-crumbs a:hover { color: var(--primary); }
.sub-crumbs span.sep { color: var(--ink-subtle); }
.sub-h1 { font-size: clamp(36px, 4vw, 56px); margin-bottom: 16px; max-width: 880px; margin-top: 16px; }
.sub-lead { font-size: 18px; max-width: 640px; }
.sub-section { padding: 64px 0; border-top: 1px solid var(--border); }
.sub-cols { display: grid; grid-template-columns: 1fr 320px; gap: 64px; align-items: start; }

.sub-prose { max-width: 720px; }
.sub-prose h2 { font-size: 28px; margin: 48px 0 12px; }
.sub-prose h2:first-child { margin-top: 0; }
.sub-prose h3 { font-size: 18px; margin: 24px 0 8px; }
.sub-prose p { font-size: 16px; margin-bottom: 14px; line-height: 1.65; }
.sub-prose ul,
.sub-prose ol {
  padding-left: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin: 12px 0 20px;
}
.sub-prose ul li,
.sub-prose ol li {
  display: grid;
  grid-template-columns: 16px 1fr;
  gap: 10px;
  align-items: start;
  padding-left: 0;
}
.sub-prose ul li::before {
  content: ""; width: 6px; height: 6px;
  background: var(--primary);
  border-radius: 50%;
  margin-top: 9px;
}
.sub-prose ol { counter-reset: rs-ol; }
.sub-prose ol li { counter-increment: rs-ol; }
.sub-prose ol li::before {
  content: counter(rs-ol, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--primary);
  margin-top: 4px;
}
.sub-prose a {
  color: var(--primary);
  border-bottom: 1px solid color-mix(in oklch, var(--primary) 35%, transparent);
}
.sub-prose a:hover { border-bottom-color: var(--primary); }
.sub-prose blockquote {
  margin: 24px 0;
  padding: 16px 20px;
  border-left: 3px solid var(--primary);
  background: var(--bg-alt);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 15px;
  color: var(--ink);
}

.sub-aside {
  position: sticky; top: 96px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}
.sub-aside h4 { font-size: 16px; margin-bottom: 8px; margin-top: 0; }
.sub-aside p { font-size: 13.5px; margin-bottom: 16px; }
.sub-aside .btn { width: 100%; }
.sub-stats {
  display: grid; grid-template-columns: 1fr 1fr; gap: 12px;
  margin-top: 16px; padding-top: 16px;
  border-top: 1px solid var(--border);
}
.sub-stat-v {
  font-size: 22px; font-weight: 600;
  letter-spacing: -0.03em; color: var(--ink);
}
.sub-stat-l {
  font-size: 11px; font-family: var(--font-mono);
  color: var(--ink-muted); text-transform: uppercase;
  letter-spacing: 0.05em;
}

.sub-cta {
  margin: 48px 0 96px;
  text-align: center;
  padding: 64px 32px;
  border-radius: var(--radius-xl);
  background: var(--ink);
  color: var(--bg);
}
.sub-cta h2 { color: var(--bg); margin-bottom: 12px; }
.sub-cta p {
  color: color-mix(in oklch, var(--bg) 70%, transparent);
  max-width: 480px;
  margin: 0 auto 24px;
}
.sub-cta .btn-secondary { background: var(--bg); color: var(--ink); }

@media (max-width: 1080px) {
  .sub-cols { grid-template-columns: 1fr; }
  .sub-aside { position: static; }
}

/* Floating dark-mode toggle — same look on every page */
.rs-theme-toggle {
  position: fixed;
  bottom: 18px;
  right: 18px;
  z-index: 200;
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--surface);
  color: var(--ink);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  box-shadow: var(--shadow-md);
  cursor: pointer;
  transition: transform .15s ease, background .2s ease, color .2s ease, border-color .2s ease;
}
.rs-theme-toggle:hover {
  transform: translateY(-1px);
  border-color: var(--ink);
}
.rs-theme-toggle svg { width: 18px; height: 18px; }
.rs-theme-toggle .rs-icon-sun { display: none; }
[data-theme="dark"] .rs-theme-toggle .rs-icon-moon { display: none; }
[data-theme="dark"] .rs-theme-toggle .rs-icon-sun { display: block; }

/* Toast for inline-form fallback */
.rs-toast {
  position: fixed; left: 50%; bottom: 80px;
  transform: translateX(-50%) translateY(20px);
  background: var(--ink); color: var(--bg);
  padding: 12px 18px; border-radius: 999px;
  font-size: 13px; box-shadow: var(--shadow-lg);
  opacity: 0; pointer-events: none;
  transition: opacity .25s ease, transform .25s ease;
  z-index: 200;
}
.rs-toast.is-on { opacity: 1; transform: translateX(-50%) translateY(0); }