.pt-depth{margin-top:var(--space-5);background:var(--surface-2);border-radius:8px;padding:16px}.pt-depth-variant{display:none}[data-pt-depth=tiers] .pt-dv-bars,[data-pt-depth=strata] .pt-dv-strata,[data-pt-depth=tiers] .pt-dv-tiers{display:block}.pt-strata{margin-top:12px;display:flex;flex-direction:column;gap:2px;border-radius:6px;overflow:hidden}.pt-strata-row{padding:9px 12px;display:flex;align-items:center;justify-content:space-between}.pt-strata-name{font-family:var(--font-mono);font-size:10px;letter-spacing:.04em;color:var(--text)}.pt-strata-probe{font-family:var(--font-mono);font-size:9px;letter-spacing:.08em;color:var(--accent-on);text-transform:uppercase;font-weight:700}.pt-st-1{background:color-mix(in oklch,var(--accent) 16%,var(--surface))}.pt-st-2{background:color-mix(in oklch,var(--accent) 34%,var(--surface))}.pt-st-3{background:color-mix(in oklch,var(--accent) 58%,var(--surface))}.pt-st-4{background:var(--accent)}.pt-st-4 .pt-strata-name{color:var(--accent-on);font-weight:700}.pt-st-4.pt-depth-active{animation:as-pip-pulse calc(var(--aianim-speed) * .8) ease-in-out infinite}.pt-tiers{margin-top:12px;display:flex;flex-direction:column;gap:4px}.pt-tier{display:flex;align-items:center;gap:10px;padding:8px 12px;border-radius:5px;background:var(--surface);border:1px solid var(--line);font-family:var(--font-mono);font-size:10.5px;color:var(--muted)}.pt-tier b{font-size:10px;font-weight:700;color:var(--dim);letter-spacing:.06em;min-width:18px}.pt-tier-done{background:color-mix(in oklch,var(--accent) 12%,var(--surface))}.pt-tier-done b{color:var(--accent)}.pt-tier-done span{color:var(--text)}.pt-tier-active{background:var(--amber-soft);border-color:var(--amber-line)}.pt-tier-active b,.pt-tier-active span{color:var(--accent);font-weight:700}.pt-depth-lab{font-family:var(--font-mono);font-size:10px;letter-spacing:.1em;color:var(--dim);text-transform:uppercase}.pt-depth-layers{margin-top:12px;display:flex;flex-direction:column;gap:6px}.pt-depth-row{display:flex;align-items:center;gap:10px}.pt-depth-bar{display:block;height:16px;border-radius:3px;background:var(--line-strong);flex:none;transform-origin:left;animation:pt-depth-grow calc(var(--aianim-speed) * 1.6) ease-out infinite alternate}.pt-depth-name{font-family:var(--font-mono);font-size:9.5px;letter-spacing:.04em;color:var(--muted)}.pt-depth-row:nth-child(2) .pt-depth-bar{background:color-mix(in oklch,var(--accent) 45%,var(--surface))}.pt-depth-row:nth-child(3) .pt-depth-bar{background:color-mix(in oklch,var(--accent) 70%,var(--surface))}.pt-depth-active .pt-depth-bar{background:var(--accent);animation:pt-depth-grow calc(var(--aianim-speed) * 1.6) ease-out infinite alternate,as-pip-pulse calc(var(--aianim-speed) * .7) ease-in-out infinite}.pt-depth-active .pt-depth-name{color:var(--accent);font-weight:700}@keyframes pt-depth-grow{0%{transform:scaleX(.4);opacity:.5}to{transform:scaleX(1);opacity:1}}.pt-depth-probe{margin-top:10px;padding-top:10px;border-top:1px dashed var(--line);display:flex;align-items:center;gap:8px}.pt-depth-probe-line{flex:1;height:1.5px;background:linear-gradient(to right,var(--accent),transparent)}.pt-depth-probe-lab{font-family:var(--font-mono);font-size:9px;letter-spacing:.08em;color:var(--accent);text-transform:uppercase}.section-head{display:grid;grid-template-columns:280px 1fr;gap:clamp(40px,6vw,96px);margin-bottom:var(--space-7);align-items:baseline}.section-head .eyebrow{padding-top:12px}.section-head h2{max-width:22ch}@media(max-width:880px){.section-head{grid-template-columns:1fr;gap:12px}}.deliverables{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.deliverables .item-d{background:var(--bg);padding:var(--space-6);display:flex;flex-direction:column;gap:12px}.deliverables .item-d .num{font-family:var(--font-mono);font-size:11px;color:var(--dim);letter-spacing:.12em}.deliverables .item-d h4{font-size:clamp(20px,1.8vw,24px);line-height:1.2}.deliverables .item-d p{color:var(--muted);font-size:var(--t-small);line-height:1.55}@media(max-width:820px){.deliverables{grid-template-columns:1fr}}.phases{display:flex;flex-direction:column}.phase{display:grid;grid-template-columns:56px 200px 1fr;gap:clamp(20px,3vw,56px);padding:var(--space-6) 0;border-bottom:1px solid var(--line);align-items:start}.phase:first-child{border-top:1px solid var(--line)}.phase .ix{font-family:var(--font-mono);font-size:11px;color:var(--accent);letter-spacing:.12em;padding-top:8px}.phase h4{font-size:clamp(18px,1.6vw,22px);line-height:1.25}.phase p{color:var(--muted);font-size:var(--t-body);line-height:1.55}.phase p+p{margin-top:.8em}@media(max-width:880px){.phase{grid-template-columns:32px 1fr}.phase h4{grid-column:2}.phase .body{grid-column:1 / -1}}.arguments{display:grid;grid-template-columns:1fr 1fr;gap:32px}.argument{border-top:1px solid var(--text);padding-top:var(--space-5);display:flex;flex-direction:column;gap:10px}.argument .num{font-family:var(--font-mono);font-size:11px;color:var(--dim);letter-spacing:.12em}.argument h4{font-size:clamp(20px,1.9vw,26px);line-height:1.18;max-width:22ch}.argument p{color:var(--muted);font-size:var(--t-body);line-height:1.55}@media(max-width:820px){.arguments{grid-template-columns:1fr}}.evidence-note{background:var(--surface-2);border-radius:var(--radius-lg);padding:var(--space-6);display:flex;flex-direction:column;gap:14px}.evidence-note .pill{display:inline-flex;gap:6px;align-items:center;padding:4px 10px;background:var(--bg);border:1px solid var(--line);border-radius:999px;font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;color:var(--muted);align-self:flex-start}.evidence-note .pill .dot{width:6px;height:6px;border-radius:50%;background:var(--accent)}.surface-diagram{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:24px;margin-top:var(--space-6)}.surface-diagram .legend{display:flex;gap:16px;font-family:var(--font-mono);font-size:11px;color:var(--muted);margin-bottom:16px}.surface-diagram .legend .key{display:inline-flex;align-items:center;gap:6px}.surface-diagram .legend .key .sw{width:10px;height:10px;border-radius:2px}