.platform-hero { padding-bottom: 52px; }

.capability-nav { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.capability-nav a { padding: 24px 0; color: var(--text-primary); text-decoration: none; font-weight: 600; }
.capability-nav a:hover { color: var(--accent); }
.capability-nav span { margin-right: 12px; font: 12px 'JetBrains Mono', monospace; color: var(--accent); }
.capability-section { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.capability-copy > p:not(.eyebrow) { color: var(--text-secondary); line-height: 1.75; }
.capability-copy .section-description { margin: 26px 0 20px; }
.capability-copy .home-text-link { margin-top: 22px; }
.reasoning-sheet, .application-sheet { padding: 0; border: 0; background: transparent; }
.evidence-sources { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 26px; }
.evidence-sources span { padding: 10px 12px; background: white; border: 1px solid var(--border); font-size: 13px; }
.diagram-connector { text-align: center; color: var(--accent); font-size: 24px; padding: 12px; }
.evidence-core { border: 1px solid var(--accent); padding: 24px; background: white; }
.evidence-core h3, .evidence-lineage h3 { font-size: 21px; letter-spacing: -.6px; margin: 12px 0 8px; }
.evidence-core p, .evidence-lineage p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; margin: 0; }
.evidence-lineage { padding: 0 12px; }
.inventory-band, .execution-band { background: var(--bg-secondary); }
.inventory-band-inner { padding-top: 48px; padding-bottom: 48px; display: grid; grid-template-columns: 1fr 1.6fr; gap: 28px 60px; }
.inventory-band h3 { font-size: 24px; line-height: 1.3; letter-spacing: -.7px; margin: 14px 0 0; }
.inventory-band dl { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin: 0; }
.inventory-band dt { font-size: 13px; line-height: 1.6; color: var(--text-secondary); }
.inventory-band dd { font-size: 36px; font-weight: 700; letter-spacing: -1.5px; margin: 10px 0 0; }
.inventory-band .source-terms { grid-column: 1 / -1; margin: 0; }
.discovery-pitch p:first-child { font-size: clamp(24px, 2.8vw, 34px); line-height: 1.3; letter-spacing: -.035em; font-weight: 600; }
.discovery-pitch p + p { margin-top: 20px; font-size: 15px; color: var(--text-secondary); max-width: 64ch; }
.reasoning-stat { display: flex; align-items: center; gap: 24px; border-bottom: 1px solid var(--border); padding-bottom: 24px; }
.reasoning-stat strong { font-size: 86px; line-height: 1; letter-spacing: -5px; color: var(--accent); }
.reasoning-stat span { font-size: 18px; }
.reasoning-stat strong { color: var(--purple); }
.capability-section[data-tone] .eyebrow { color: var(--tone); }
.inventory-band[data-tone="evidence"] { background: var(--mint-wash); }
.inventory-band[data-tone] .eyebrow { color: var(--tone); }
.execution-band { background: var(--ink); color: #f8f9fa; --text-primary: #f8f9fa; --text-secondary: #d0d0d8; --border: #82818a; }
.execution-band .technical-figure { --tone: var(--purple-bright); }
.execution-band .technical-figure .f-node { fill: #1c1c22; }
.execution-band .technical-figure .f-focus { fill: #292039; }
.execution-band .technical-figure .f-mono { fill: var(--mint); }
.execution-band .capability-section .eyebrow { color: var(--purple-bright); }
.composition-pair article[data-tone] { border-top: 3px solid var(--tone); }
.composition-pair article[data-tone] .eyebrow { color: var(--tone); }
.composition-pair article[data-tone] li::before { color: var(--tone); }
.reasoning-sheet > h3 { margin: 26px 0; font-size: 22px; line-height: 1.4; }
.capability-list { list-style: none; padding: 0; margin: 0; }
.capability-list li { margin-top: 20px; }
.capability-list strong, .capability-list span { display: block; }
.capability-list span { color: var(--text-secondary); font-size: 14px; line-height: 1.6; margin-top: 5px; }
.execution-band .capability-section { padding-top: 100px; padding-bottom: 100px; }
.execution-flow { margin: 0; }
.execution-flow ol { padding: 0; margin: 24px 0 0; list-style: none; }
.execution-flow li { display: flex; gap: 24px; border-top: 1px solid var(--border); padding: 24px 0; }
.execution-flow li > span { color: var(--accent); font: 13px 'JetBrains Mono', monospace; padding-top: 5px; }
.execution-flow h3 { margin: 0 0 8px; font-size: 23px; letter-spacing: -.7px; }
.execution-flow p { margin: 0; color: var(--text-secondary); line-height: 1.7; font-size: 15px; }
.application-sheet dl { margin: 26px 0 0; }
.application-sheet dl > div { border-top: 1px solid var(--border); padding: 20px 0; }
.application-sheet dl > div:last-child { padding-bottom: 0; }
.application-sheet dt { font-weight: 600; }
.application-sheet dd { margin: 8px 0 0; color: var(--text-secondary); font-size: 14px; line-height: 1.7; }
.composition-section { padding: 100px 0; background: var(--bg-secondary); }
.composition-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.composition-pair article { background: white; border: 1px solid var(--border); padding: 36px; }
.composition-pair h3 { font-size: 28px; line-height: 1.25; letter-spacing: -1px; margin: 22px 0; }
.composition-pair p:not(.eyebrow), .reuse-example p:not(.eyebrow):not(.reuse-parent) { color: var(--text-secondary); line-height: 1.75; }
.composition-pair ol { padding: 0; margin: 28px 0 0; list-style: none; counter-reset: step; }
.composition-pair li { border-top: 1px solid var(--border); padding: 14px 0; counter-increment: step; font-size: 14px; }
.composition-pair li::before { content: '0' counter(step); color: var(--accent); font: 11px 'JetBrains Mono', monospace; margin-right: 16px; }
.reuse-example { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; margin: 64px 0 40px; align-items: center; }
.reuse-example h3 { font-size: 28px; line-height: 1.3; letter-spacing: -.8px; }
.reuse-parent { text-align: center; background: white; border: 1px solid var(--accent); padding: 22px; margin: 0; font-weight: 600; }
.reuse-branches ul { padding: 0; margin: 0; list-style: none; display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.reuse-branches li { text-align: center; background: white; border: 1px solid var(--border); padding: 20px 12px; font-size: 14px; }
@media (max-width: 1024px) {
    .capability-section { gap: 36px; }
    .inventory-band-inner { gap: 28px; }
    .composition-pair article { padding: 26px; }
}
@media (max-width: 760px) {
    .architecture-map { padding: 20px; }
    .architecture-products span { font-size: 10px; padding: 12px 6px; }
    .architecture-engines > div { padding: 14px 10px; }
    .architecture-domain { padding: 20px 12px; }
    .revision-dependents { grid-template-columns: 1fr; }
    .revision-dependents > div::before { left: 20px; }
    .capability-nav { grid-template-columns: 1fr 1fr; }
    .capability-nav a { padding: 18px 0; font-size: 14px; }
    .capability-section, .composition-pair, .reuse-example, .inventory-band-inner { grid-template-columns: 1fr; }
    .inventory-band dl { gap: 12px; }
    .inventory-band dd { font-size: 30px; }
    .inventory-band dt { font-size: 12px; }
    .execution-band .capability-section, .composition-section { padding-top: 64px; padding-bottom: 64px; }
    .reuse-example { gap: 24px; margin-top: 40px; }
    .composition-pair h3 { font-size: 25px; }
    .reasoning-stat strong { font-size: 72px; }
}