.rp-theme--spec-sheet .rp-masthead--grid:before{background-image:linear-gradient(color-mix(in srgb,var(--accent) 15%,transparent) 1.2px,transparent 1.2px),linear-gradient(90deg,color-mix(in srgb,var(--accent) 15%,transparent) 1.2px,transparent 1.2px),linear-gradient(color-mix(in srgb,var(--accent) 8%,transparent) 1px,transparent 1px),linear-gradient(90deg,color-mix(in srgb,var(--accent) 8%,transparent) 1px,transparent 1px);background-size:120px 120px,120px 120px,24px 24px,24px 24px;background-position:center top}.dark .rp-theme--spec-sheet .rp-masthead--grid:before{background-image:linear-gradient(color-mix(in srgb,var(--accent) 26%,transparent) 1.2px,transparent 1.2px),linear-gradient(90deg,color-mix(in srgb,var(--accent) 26%,transparent) 1.2px,transparent 1.2px),linear-gradient(color-mix(in srgb,var(--accent) 14%,transparent) 1px,transparent 1px),linear-gradient(90deg,color-mix(in srgb,var(--accent) 14%,transparent) 1px,transparent 1px)}.rp-theme--spec-sheet .brief-fig .rp-figure__frame{position:relative;border-color:color-mix(in srgb,var(--accent) 40%,var(--hairline))}.brief-corner{position:absolute;z-index:3;width:13px;height:13px;border:0 solid color-mix(in srgb,var(--accent) 58%,transparent);pointer-events:none}.brief-corner--tl{top:9px;left:9px;border-top-width:1.5px;border-left-width:1.5px}.brief-corner--tr{top:9px;right:9px;border-top-width:1.5px;border-right-width:1.5px}.brief-corner--bl{bottom:9px;left:9px;border-bottom-width:1.5px;border-left-width:1.5px}.brief-corner--br{bottom:9px;right:9px;border-bottom-width:1.5px;border-right-width:1.5px}.rp-theme--spec-sheet .brief-doc .rp-doc__head{background-image:linear-gradient(color-mix(in srgb,var(--accent) 10%,transparent) 1px,transparent 1px),linear-gradient(90deg,color-mix(in srgb,var(--accent) 10%,transparent) 1px,transparent 1px),linear-gradient(180deg,color-mix(in srgb,var(--accent) 8%,var(--surface)),color-mix(in srgb,var(--accent) 5%,var(--surface)));background-size:22px 22px,22px 22px,100% 100%}.brief-doc__badge{display:inline-grid;place-items:center;width:1.35rem;height:1.35rem;margin-right:.1rem;border-radius:var(--radius-chip);background:var(--accent);color:#fff;vertical-align:-.32rem}.brief-doc__badge svg{width:.85rem;height:.85rem}.rp-theme--spec-sheet .brief-doc .rp-doc__meta{display:inline-flex;align-items:center;gap:.5rem}.brief-doc__rev{padding:.1rem .4rem;border:1px solid color-mix(in srgb,var(--accent) 40%,var(--hairline));border-radius:var(--radius-chip);color:var(--accent-ink)}.brief-pill{display:inline-flex;align-items:center;margin-left:.35rem;padding:.02rem .4rem;border-radius:var(--radius-chip);font-family:var(--font-mono);font-size:.6rem;font-weight:600;letter-spacing:.09em;text-transform:uppercase;line-height:1.55;vertical-align:.04em;white-space:nowrap}.brief-pill--locked{background:var(--accent);color:#fff}.brief-pill--open{color:var(--accent-ink);border:1px solid color-mix(in srgb,var(--accent) 42%,var(--hairline))}.rp-theme--spec-sheet .brief-doc__foot{display:grid;grid-template-columns:1fr 1fr;gap:0;padding:0}.brief-tb{padding:.85rem var(--doc-pad, 1.25rem);font-family:var(--font-mono);font-size:.72rem;line-height:1.5;letter-spacing:.03em;color:var(--ink-2)}.brief-tb--flex{border-left:1px solid var(--rp-frame)}.brief-tb__k{display:block;margin-bottom:.2rem;font-weight:680;letter-spacing:.12em;text-transform:uppercase}.brief-tb--fixed .brief-tb__k{color:var(--accent-ink)}.brief-tb--flex .brief-tb__k{color:var(--ink-3)}.rp-theme--spec-sheet .rp-chapter__title{margin-top:0;font-size:clamp(1.4rem,1.1rem + 1vw,1.9rem)}.brief-chapter__col{display:flex;flex-direction:column;gap:.6rem;min-width:0}.rp-theme--spec-sheet .rp-chapter__index span{font-size:.5em;letter-spacing:-.02em}.rp-theme--spec-sheet .brief-checklist{display:grid;gap:.85rem;grid-template-columns:1fr;margin-top:1.4rem}@media(min-width:640px){.rp-theme--spec-sheet .brief-checklist{grid-template-columns:1fr 1fr;gap:.9rem 1.75rem}}.rp-theme--spec-sheet .brief-checklist li{padding-left:0}.rp-theme--spec-sheet .brief-checklist li:before{content:none}.rp-theme--spec-sheet .brief-check--key{margin-top:.3rem;padding:.85rem 1rem;border:1px solid var(--rp-frame);border-radius:var(--radius-card);background:color-mix(in srgb,var(--accent) 8%,var(--surface))}.dark .rp-theme--spec-sheet .brief-check--key{background:color-mix(in srgb,var(--accent) 16%,var(--surface))}@media(min-width:640px){.rp-theme--spec-sheet .brief-check--key{grid-column:1 / -1}}.rp-theme--spec-sheet .brief-check--key .rp-checklist__check{background:var(--accent);color:#fff}