.page-head{padding-top:calc(56px + clamp(4rem,9vw,7rem))}.page-head h1{font-family:var(--font-display), Georgia, serif;letter-spacing:-.01em;font-size:clamp(2.75rem,5.5vw,4rem);font-weight:500;line-height:1.05}.page-lede{color:var(--text-muted);margin-top:1.25rem;font-size:1.125rem;line-height:1.65}.layers{border-top:1px solid var(--border);list-style:none}.layers>li{border-bottom:1px solid var(--border)}.layer{grid-template-columns:2.75rem 8rem 1fr;align-items:baseline;gap:1rem;padding-block:1.25rem;display:grid}.layer-n{font-family:var(--font-display), Georgia, serif;color:var(--accent-warm);font-variant-numeric:lining-nums tabular-nums;font-size:1.125rem}.layer-name{font-family:var(--font-display), Georgia, serif;font-size:1.375rem;font-weight:500}.layer-role{color:#4a4642;font-size:1rem;line-height:1.65}.rails{grid-template-columns:1fr 1fr;gap:1.25rem;display:grid}.rail p{font-family:var(--font-display), Georgia, serif;font-size:1.25rem;line-height:1.45}.checks{padding-left:1.4rem}.checks li{margin-bottom:.6rem;padding-left:.4rem;font-size:1.0625rem;line-height:1.75}.checks li::marker{font-family:var(--font-display), Georgia, serif;color:var(--accent-warm)}.back-link{margin:2.5rem 0 var(--space-section);color:var(--text-muted);border-bottom:1px solid var(--border);transition:color var(--d-fast) var(--ease-standard), border-color var(--d-fast) var(--ease-standard);font-size:.8125rem;text-decoration:none;display:inline-block}.back-link:hover{color:var(--accent);border-color:var(--accent)}@media (max-width:640px){.layer{grid-template-columns:2.25rem 1fr;row-gap:.35rem}.layer-role{grid-column:2}.rails{grid-template-columns:1fr}}