/* DSML Studio — Dialect B: Lineage.
   Everything knows where it came from; every handoff carries its context forward.
   Everything shared lives in ../shared/case-study.css. This file holds only the dialect:
   teal marks context that travels (the lineage line and the chips riding it) · dark is
   literal system state only (identifiers, parameters, run records), never narrative ·
   nodes on a continuous line · the pipeline grid in three acts · follow the request,
   drawn left to right. Plex stays inside the product captures; the narration is Geist. */
@import url("../shared/case-study.css?v=4");

:root {
  --accent: #006d77;          /* carried context (5.25:1 on paper) */
  --accent-ink: #006d77;
  --accent-on-deep: #2ec4b6;  /* chips on the console (8.48:1) */
  --accent-tint: #dcece9;     /* E / T / L act bands */
  --deep: #0d1614;            /* the console: system state only */
  --deep-2: #132420;
  --deep-3: #1b332c;
  /* Legacy names still used inline by the encrypted full study */
  --teal: var(--accent);
  --teal-bright: var(--muted-on-ink);  /* the full study uses it for labels and operators on dark: neutral, not context */
  --teal-soft: var(--paper-2);         /* the full study tints role and source cells with it: no persona colour */
  --cyan: var(--accent-on-deep);
}

/* The encrypted full study's dark sections */
.terminal { background: var(--deep); color: var(--white); }
.terminal .section-no, .terminal .label { color: var(--muted-on-ink); }
.terminal .display em, .terminal .statement em { color: var(--accent-on-deep); }
.terminal .lead { color: var(--white); }
.terminal .prose p { color: var(--text-on-ink); }
.terminal .lens-note { border-color: var(--line-on-ink); }
.terminal .lens-note .label { color: var(--white); }
.terminal .lens-note .label b { color: var(--white); }
.terminal .lens-note p { color: var(--text-on-ink); }

/* ---------- The lineage rail: six stages in three acts, on one continuous line ---------- */
.lineage-acts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); margin: 0 0 8px; }
.lineage-acts span { padding: 4px 0 0 8px; border-left: 2px solid var(--ink); color: var(--ink); font: 700 11px/1.2 var(--mono); letter-spacing: .12em; text-transform: uppercase; }
.lineage-stages { position: relative; display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); margin: 0; padding: 0; list-style: none; }
.lineage-stages::before { content: ""; position: absolute; left: calc(100% / 12); right: calc(100% / 12); top: 16px; height: 2.5px; background: var(--accent); transform-origin: left; }
.js .reveal .lineage-stages::before { transform: scaleX(0); transition: transform var(--t-draw) var(--ease) .1s; }
.js .reveal.is-visible .lineage-stages::before { transform: scaleX(1); }
.lineage-stages li { position: relative; display: grid; justify-items: center; gap: 6px; text-align: center; }
.lineage-stages i { display: grid; place-items: center; width: 34px; height: 34px; border: 1.5px solid var(--ink); border-radius: 4px; background: var(--paper); font: 700 11px/1 var(--mono); font-style: normal; }
.lineage-stages span { font-size: 13px; font-weight: 650; }
.lineage-stages li[aria-current] i { background: var(--ink); color: var(--white); }
.lineage-carried { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin: 14px 0 0; }
.lineage-carried > span { margin-right: 6px; color: var(--muted); font: 700 11px/1.2 var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.lineage-carried + .lineage-carried { margin-top: 8px; }
.chip { display: inline-flex; align-items: center; min-height: 26px; padding: 4px 9px; background: var(--deep); color: var(--accent-on-deep); font: 600 11px/1.2 var(--mono); }
.chip.new { background: var(--accent); color: var(--white); }
.chip.retyped { border: 1px dashed var(--ink); background: transparent; color: var(--ink); }
.chip.retyped::after { content: " · retyped"; color: var(--muted); font-weight: 500; }
.hero-lineage { margin-top: 20px; padding: 18px 20px; border: 1px solid var(--line-strong); background: var(--white); }

/* ---------- Context: extract, transform, load as nodes on a line ---------- */
.etl-strip { position: relative; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 40px; }
.etl-strip::before { content: ""; position: absolute; left: 0; right: 0; top: 22px; height: 2.5px; background: var(--accent); }
.etl-node { position: relative; padding: 0; }
.etl-node b { position: relative; display: inline-flex; align-items: center; height: 44px; margin-bottom: 16px; padding: 0 14px; border: 1.5px solid var(--ink); border-radius: 4px; background: var(--paper); font: 700 11px/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; }
.etl-node strong { display: block; margin-bottom: 8px; font-size: 20px; font-weight: 650; letter-spacing: -.02em; }
.etl-node p { max-width: 34ch; margin: 0; color: var(--text); font-size: 15px; line-height: 1.55; }

/* Separate tools vs one lifecycle: the same six handoffs, line broken or carried */
.handoff-lab { border: 1px solid var(--line-strong); background: var(--white); }
.handoff-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px 20px; padding: 16px 20px; border-bottom: 1px solid var(--line); }
.handoff-head strong { display: block; font-size: 17px; letter-spacing: -.01em; }
.handoff-head small { color: var(--muted); font: 700 11px/1.3 var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.handoff-rows { position: relative; margin: 0; padding: 8px 20px 8px 56px; list-style: none; }
.handoff-rows::before { content: ""; position: absolute; left: 31px; top: 18px; bottom: 18px; width: 2.5px; background: var(--accent); }
.handoff-lab.is-separate .handoff-rows::before { width: 0; border-left: 1.5px dashed var(--muted); }
.handoff-rows li { position: relative; display: grid; grid-template-columns: 200px minmax(0, 1fr); gap: 16px; padding: 12px 0; border-bottom: 1px solid var(--line); font-size: 15px; line-height: 1.45; }
.handoff-rows li:last-child { border-bottom: 0; }
.handoff-rows li::before { content: attr(data-n); position: absolute; left: -38px; top: 10px; display: grid; place-items: center; width: 26px; height: 26px; border: 1.5px solid var(--ink); border-radius: 4px; background: var(--white); font: 700 11px/1 var(--mono); }
.handoff-rows b { font-weight: 650; }
.handoff-rows span { color: var(--text); }
.handoff-lab.is-separate .handoff-rows span::after { content: " · context rebuilt"; color: var(--muted); font: 600 11px var(--mono); }
.handoff-foot { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; margin: 0; padding: 12px 20px; border-top: 1px solid var(--line); color: var(--muted); font: 14px/1.45 var(--sans); }
.handoff-foot b { color: var(--ink); }

/* Designed scope, not impact */
.stat-strip { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); margin-top: 36px; border: 1px solid var(--line-strong); background: var(--white); }
.scope-stat { padding: 20px 22px; border-right: 1px solid var(--line); }
.scope-stat:last-child { border-right: 0; }
.scope-stat strong { display: block; font-size: clamp(40px, 4.6vw, 64px); font-weight: 600; line-height: 1; letter-spacing: -.04em; font-variant-numeric: tabular-nums; }
.scope-stat span { display: block; margin-top: 10px; font-size: 14px; font-weight: 650; }
.scope-stat small { display: block; margin-top: 4px; color: var(--muted); font: 11px/1.4 var(--mono); }
.stat-note { margin: 0; padding: 10px 22px; border: 1px solid var(--line-strong); border-top: 0; background: var(--white); color: var(--muted); font: 14px/1.45 var(--sans); }
.stat-note b { color: var(--ink); }

/* ---------- Research: extract the inputs → transform → load the decisions ---------- */
.research-pipeline { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr; gap: 20px; align-items: start; }
.research-col { min-width: 0; }
.research-col-head { display: flex; align-items: baseline; gap: 8px; margin-bottom: 14px; padding-top: 8px; border-top: 2px solid var(--ink); }
.research-col-head b { font: 700 11px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--ink); }
.research-col-head span { font-size: 12px; color: var(--muted); }
.research-arrow { display: flex; align-items: center; justify-content: center; padding-top: 70px; color: var(--ink); pointer-events: none; }
.research-input { width: 100%; display: block; margin-bottom: 8px; padding: 14px 16px; border: 1px solid var(--line-strong); background: var(--white); text-align: left; cursor: pointer; }
.research-input[aria-pressed="true"] { border-color: var(--ink); box-shadow: inset 3px 0 0 var(--ink); }
.research-input span { display: block; margin-bottom: 6px; color: var(--muted); font: 700 11px/1 var(--mono); }
.research-input strong { display: block; margin-bottom: 3px; font-size: 14px; }
.research-input small { color: var(--muted); font-size: 12px; }
.research-synthesis { padding: 6px 18px; border: 1px solid var(--line-strong); background: var(--paper-2); }
.research-synthesis div { padding: 12px 0; border-bottom: 1px solid var(--line); }
.research-synthesis div:last-child { border-bottom: 0; }
.research-synthesis span { display: block; margin-bottom: 6px; color: var(--muted); font: 700 11px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.research-synthesis strong { font-size: 14px; line-height: 1.4; }
.research-output { margin-bottom: 8px; padding: 14px 16px; border: 1px solid var(--ink); background: var(--white); }
.research-output span { display: block; margin-bottom: 6px; color: var(--ink); font: 700 11px/1 var(--mono); }
.research-output strong { display: block; margin-bottom: 3px; font-size: 14px; }
.research-output small { color: var(--muted); font-size: 12px; }
.research-detail { margin-top: 24px; padding: 22px 24px; border: 1px solid var(--line-strong); background: var(--white); }
.research-detail > span { color: var(--muted); font: 700 11px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.research-detail h3 { margin: 8px 0 10px; font-size: 20px; letter-spacing: -.01em; }
.research-detail p { max-width: 68ch; margin: 0 0 12px; color: var(--text); line-height: 1.6; }
.research-detail .out { display: flex; flex-wrap: wrap; gap: 6px 10px; align-items: baseline; font-size: 14px; }
.research-detail .out span { color: var(--ink); font: 700 11px/1 var(--mono); letter-spacing: .08em; }

/* ---------- Who it's for: four roles, one model (monograms, no role colours) ---------- */
.persona-tabs { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border: 1px solid var(--ink); }
.persona-tabs button { display: flex; align-items: center; gap: 10px; min-height: 60px; padding: 12px 16px; border: 0; border-right: 1px solid var(--ink); background: var(--white); text-align: left; cursor: pointer; }
.persona-tabs button:last-child { border-right: 0; }
.persona-tabs button b { display: grid; place-items: center; flex: 0 0 32px; width: 32px; height: 32px; border: 1.5px solid currentColor; border-radius: 4px; font: 700 11px/1 var(--mono); }
.persona-tabs button span { font-size: 14px; font-weight: 650; }
.persona-tabs button[aria-selected="true"] { background: var(--ink); color: var(--white); }
.persona-canvas { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 28px; padding: 30px; border: 1px solid var(--ink); border-top: 0; background: var(--white); }
.persona-portrait { display: flex; flex-direction: column; align-items: center; gap: 8px; width: 120px; text-align: center; }
.persona-portrait div { display: grid; place-items: center; width: 68px; height: 68px; border: 2px solid var(--ink); border-radius: 6px; font: 700 20px/1 var(--mono); }
.persona-portrait span { font-size: 14px; font-weight: 650; }
.persona-portrait small { color: var(--muted); font-size: 12px; }
.persona-job blockquote { margin: 0 0 20px; padding-left: 16px; border-left: 3px solid var(--ink); font-size: 21px; font-weight: 600; line-height: 1.35; letter-spacing: -.01em; }
.persona-columns { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.persona-columns span { display: block; margin-bottom: 6px; color: var(--muted); font: 700 11px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.persona-columns p { margin: 0; font-size: 15px; line-height: 1.5; }
.persona-columns .signal { color: var(--ink); }

/* ---------- System: intent-led IA, and the layers under it ---------- */
.system-map { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px; border: 1px solid var(--line-strong); background: var(--line); }
.map-group { padding: 20px; background: var(--white); }
.map-group span { color: var(--ink); font: 700 11px/1 var(--mono); }
.map-group h3 { margin: 10px 0 4px; font-size: 18px; letter-spacing: -.01em; }
.map-group p { margin: 0 0 12px; color: var(--muted); font-size: 13px; }
.map-group b { display: block; margin-bottom: 6px; padding: 8px 10px; border: 1px solid var(--line-strong); background: var(--paper); font: 500 12px var(--mono); }
.layer-bands { border: 1px solid var(--line-strong); background: var(--white); }
.layer-band { display: grid; grid-template-columns: 150px repeat(5, minmax(0, 1fr)); gap: 8px; align-items: center; padding: 14px 18px; border-bottom: 1px solid var(--line); }
.layer-band:nth-child(odd) { background: var(--paper); }
.layer-band:last-child { border-bottom: 0; }
.layer-band > span { color: var(--ink); font: 700 11px/1.3 var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.layer-band b { padding: 9px 8px; border: 1px solid var(--ink); border-radius: 4px; background: var(--white); font: 500 12px/1.3 var(--mono); text-align: center; }
.system-note { margin: 12px 0 0; color: var(--muted); font: 14px/1.5 var(--sans); }

/* ---------- Follow the request (signature) ---------- */
.trace { border: 1px solid var(--ink); background: var(--white); }
.trace-top { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px 18px; padding: 14px 18px; border-bottom: 1px solid var(--ink); background: var(--paper-2); }
.trace-top .label { color: var(--ink); }
.trace-rail-wrap { padding: 18px 18px 8px; }
.trace-rail { position: relative; display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); }
.trace-rail::before { content: ""; position: absolute; left: calc(100% / 12); right: calc(100% / 12); top: 17px; height: 2.5px; background: var(--accent); transition: opacity var(--t-hover); }
.trace.is-separate .trace-rail::before { height: 0; border-top: 1.5px dashed var(--muted); background: none; }
.trace-rail button { position: relative; display: grid; justify-items: center; gap: 6px; padding: 0 4px 8px; border: 0; background: transparent; text-align: center; cursor: pointer; }
.trace-rail button i { display: grid; place-items: center; width: 36px; height: 36px; border: 1.5px solid var(--ink); border-radius: 4px; background: var(--white); font: 700 11px/1 var(--mono); font-style: normal; }
.trace-rail button span { font-size: 13px; font-weight: 650; }
.trace-rail button small { color: var(--muted); font: 600 11px/1 var(--mono); letter-spacing: .1em; }
.trace-rail button[aria-selected="true"] i { background: var(--ink); color: var(--white); }
.trace-rail button[aria-selected="true"] span { text-decoration: underline; text-underline-offset: 4px; }
.trace-body { display: grid; grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr); border-top: 1px solid var(--line-strong); }
.trace-screen { margin: 0; padding: 18px; border-right: 1px solid var(--line-strong); }
.trace-screen .browser-frame { box-shadow: none; }
.trace-before { display: grid; place-items: center; min-height: 320px; padding: 24px; border: 1.5px dashed var(--ink); background: var(--paper); text-align: center; }
.trace-before p { max-width: 36ch; margin: 0; color: var(--text); font-size: 16px; line-height: 1.55; }
.trace-before b { display: block; margin-bottom: 8px; font: 700 11px/1.3 var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.crop-inner { position: relative; display: block; }
.trace-card { padding: 22px; }
.trace-card .act { color: var(--ink); font: 700 11px/1.3 var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.trace-card h3 { margin: 8px 0 10px; font-size: 24px; font-weight: 620; letter-spacing: -.03em; line-height: 1.1; }
.trace-card p { margin: 0 0 12px; color: var(--text); font-size: 15px; line-height: 1.55; }
.trace-card dl { margin: 16px 0 0; }
.trace-card dl div { padding: 10px 0; border-top: 1px solid var(--line); }
.trace-card dt { margin-bottom: 8px; color: var(--muted); font: 700 11px/1.3 var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.trace-card dd { display: flex; flex-wrap: wrap; gap: 6px; margin: 0; }
.trace-card .todo { color: var(--muted); font: 11px/1.45 var(--mono); }
.trace-foot { margin: 0; padding: 10px 18px; border-top: 1px solid var(--line-strong); color: var(--muted); font: 14px/1.5 var(--sans); }

/* ---------- Decisions: denser in the Transform act — two by two ---------- */
.decision-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; align-items: start; }
.decision-grid .decision-question { padding: 24px; }
.decision-grid .decision-question h3 { font-size: clamp(24px, 2.4vw, 34px); }
.decision-grid .decision-visual { padding: 20px 24px; }
.decision-grid .decision-outcome { grid-template-columns: 1fr; gap: 10px; padding: 22px 24px; }
.decision-grid .decision-outcome p:not(.principle) { font-size: 16px; }

/* ---------- Decisions: system state in console cells ---------- */
.console-cell { border: 1px solid var(--deep-3); background: var(--deep); color: var(--text-on-ink); }
.console-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 8px 14px; border-bottom: 1px solid var(--deep-3); background: var(--deep-2); color: var(--muted-on-ink); font: 700 11px/1.3 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.console-body { padding: 20px; }
.mode-diagram { display: flex; align-items: center; gap: 14px; }
.mode-diagram > div { flex: 1; padding: 14px; border: 1px solid var(--deep-3); background: var(--deep-2); }
.mode-diagram span { display: block; margin-bottom: 8px; color: var(--muted-on-ink); font: 700 11px/1 var(--mono); }
.mode-diagram b { display: block; color: var(--text-on-ink); font: 400 12px/1.8 var(--mono); }
.mode-diagram svg, .preview-diagram svg, .trace-diagram svg { flex: 0 0 auto; color: var(--muted-on-ink); }
.preview-diagram { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; color: var(--text-on-ink); font: 12px var(--mono); }
.preview-diagram > div { display: flex; flex-direction: column; gap: 4px; }
.preview-diagram b { padding: 6px 10px; border: 1px solid var(--deep-3); background: var(--deep-2); font-weight: 500; }
.preview-diagram strong { padding: 10px 14px; background: var(--accent); color: var(--white); font-size: 11px; text-align: center; }
.preview-diagram span { display: flex; align-items: center; gap: 6px; color: var(--text-on-ink); }
.trace-diagram { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.trace-diagram > div { display: flex; flex-direction: column; gap: 4px; }
.trace-diagram span { color: var(--muted-on-ink); font: 700 11px/1 var(--mono); }
.trace-diagram b { padding: 8px 10px; border: 1px solid var(--accent-on-deep); background: var(--deep-2); color: var(--accent-on-deep); font: 500 12px var(--mono); }
.shell-diagram .shell-top { padding: 8px 12px; background: var(--accent); color: var(--white); font: 700 11px/1 var(--mono); letter-spacing: .06em; text-align: center; }
.shell-diagram > div:nth-child(2) { display: flex; gap: 1px; background: var(--deep-3); }
.shell-diagram > div:nth-child(2) b { flex: 1; padding: 12px 8px; background: var(--deep-2); color: var(--text-on-ink); font: 500 11px var(--mono); text-align: center; }
.shell-diagram span { display: block; margin-top: 10px; color: var(--muted-on-ink); font-size: 12px; text-align: center; }

/* Designing with data: literal run records, so they sit in the console */
.data-story { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: 32px; align-items: start; margin-top: 90px; }
.data-story > div > h3 { margin: 12px 0 12px; font-size: clamp(26px, 2.6vw, 36px); font-weight: 600; letter-spacing: -.035em; line-height: 1.05; }
.data-story > div > p:not(.label) { margin: 0 0 14px; color: var(--text); font-size: 16px; line-height: 1.6; }
.scatter-card { border: 1px solid var(--deep-3); background: var(--deep); color: var(--text-on-ink); }
.scatter-card .console-body { padding: 18px 20px 20px; }
.chart-legend { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 16px; margin-bottom: 10px; color: var(--muted-on-ink); font: 11px var(--mono); }
.chart-legend div { display: flex; gap: 12px; align-items: center; }
.chart-legend i { display: inline-block; width: 9px; height: 9px; border-radius: 50%; }
.scatter-card svg { width: 100%; height: auto; }
.scatter-card .grid line { stroke: var(--deep-3); }
.scatter-card .axis text { fill: var(--muted-on-ink); font: 11px var(--mono); }
.scatter-card .run circle { fill: var(--muted-on-ink); }
.scatter-card .run text { fill: var(--text-on-ink); font: 11px var(--mono); }
.scatter-card .run.candidate circle { fill: var(--accent-on-deep); }
.scatter-card .run.candidate text { fill: var(--white); font-weight: 700; }
.winner-card { margin-top: 12px; padding: 12px 14px; border: 1px solid var(--accent-on-deep); }
.winner-card span { display: block; margin-bottom: 4px; color: var(--accent-on-deep); font: 700 11px/1 var(--mono); letter-spacing: .08em; }
.winner-card b { display: block; color: var(--white); font-size: 14px; }
.winner-card small { color: var(--muted-on-ink); font: 11.5px var(--mono); }

/* ---------- Outcome: hypotheses, not results ---------- */
.outcome-tabs { display: inline-flex; margin-bottom: 0; border: 1px solid var(--ink); border-bottom: 0; }
.outcome-tabs button { min-height: 44px; padding: 0 18px; border: 0; border-right: 1px solid var(--ink); background: var(--white); font-weight: 650; cursor: pointer; }
.outcome-tabs button:last-child { border-right: 0; }
.outcome-tabs button[aria-selected="true"] { background: var(--ink); color: var(--white); }
.outcome-panel { padding: 26px 28px; border: 1px solid var(--ink); background: var(--white); }
.outcome-panel > span { color: var(--ink); font: 700 11px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.outcome-panel h3 { margin: 8px 0 10px; font-size: 22px; letter-spacing: -.02em; }
.outcome-panel p { max-width: 62ch; margin: 0 0 16px; color: var(--text); line-height: 1.6; }
.outcome-panel ul { display: grid; gap: 8px; margin: 0; padding: 0; list-style: none; }
.outcome-panel li { display: flex; gap: 10px; align-items: flex-start; font-size: 15px; }
.outcome-panel li svg { flex: 0 0 16px; margin-top: 3px; color: var(--ink); }
.hypotheses { margin-top: 40px; border: 1px solid var(--ink); background: var(--white); }
.hypotheses-head { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px; padding: 14px 20px; border-bottom: 1px solid var(--ink); background: var(--paper-2); }
.hypotheses-head h3 { margin: 0; font-size: 18px; letter-spacing: -.01em; }
.hypotheses-head span { color: var(--muted); font: 700 11px/1.4 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.hypothesis-row { display: grid; grid-template-columns: 40px 150px minmax(0, 1fr) auto; gap: 16px; align-items: center; padding: 14px 20px; border-bottom: 1px solid var(--line); font-size: 15px; }
.hypothesis-row:last-child { border-bottom: 0; }
.hypothesis-row b { color: var(--muted); font: 700 12px var(--mono); }
.hypothesis-row span { font-weight: 650; }
.hypothesis-row em { padding: 4px 8px; border: 1px dashed var(--ink); font: 600 11px/1.2 var(--mono); font-style: normal; letter-spacing: .06em; text-transform: uppercase; white-space: nowrap; }

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .research-pipeline { grid-template-columns: 1fr; }
  .research-arrow { padding: 0; }
  .research-arrow svg { transform: rotate(90deg); }
  .decision-grid { grid-template-columns: 1fr; }
  .trace-body { grid-template-columns: 1fr; }
  .trace-screen { border-right: 0; border-bottom: 1px solid var(--line-strong); }
  .data-story { grid-template-columns: 1fr; }
  .system-map { grid-template-columns: 1fr 1fr; }
  .layer-band { grid-template-columns: 1fr 1fr; }
  .layer-band > span { grid-column: 1 / -1; }
}
@media (max-width: 1000px) {
  .etl-strip { grid-template-columns: 1fr; gap: 26px; padding-left: 40px; }
  .etl-strip::before { left: 12px; right: auto; top: 0; bottom: 0; width: 2.5px; height: auto; }
  .etl-node b { margin-left: -40px; }
  .stat-strip { grid-template-columns: 1fr 1fr; }
  .scope-stat:nth-child(2) { border-right: 0; }
  .scope-stat:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .persona-tabs { grid-template-columns: 1fr 1fr; }
  .persona-tabs button:nth-child(2) { border-right: 0; }
  .persona-tabs button:nth-child(-n+2) { border-bottom: 1px solid var(--ink); }
  .persona-canvas { grid-template-columns: 1fr; }
  .persona-portrait { flex-direction: row; width: auto; }
  .persona-columns { grid-template-columns: 1fr; }
  .handoff-rows li { grid-template-columns: 1fr; gap: 4px; }
  .hypothesis-row { grid-template-columns: 32px minmax(0, 1fr); }
  .hypothesis-row strong, .hypothesis-row em { grid-column: 2; justify-self: start; }
}
@media (max-width: 700px) {
  /* The lineage turns vertical: a spine down the left, stages as rows */
  .lineage-acts { display: none; }
  .lineage-stages { grid-template-columns: 1fr; gap: 8px; }
  .lineage-stages::before { left: 16px; right: auto; top: 0; bottom: 0; width: 2.5px; height: auto; }
  .lineage-stages li { grid-template-columns: 34px 1fr; justify-items: start; align-items: center; text-align: left; }
  .trace-rail { grid-template-columns: 1fr; gap: 6px; }
  .trace-rail::before { left: 17px; right: auto; top: 0; bottom: 0; width: 2.5px; height: auto; }
  .trace.is-separate .trace-rail::before { width: 0; height: auto; border-top: 0; border-left: 1.5px dashed var(--muted); }
  .trace-rail button { grid-template-columns: 36px auto 1fr; justify-items: start; align-items: center; gap: 10px; padding: 0; text-align: left; }
  /* Stage screens become crops of the region that matters; "View larger" still opens the whole frame */
  .trace-screen .shot.has-crop { aspect-ratio: var(--crop-ratio); }
  .trace-screen .shot.has-crop .crop-inner { position: absolute; left: calc(-100% * var(--crop-x) / var(--crop-w)); top: calc(-100% * var(--crop-y) / var(--crop-h)); width: calc(100% * 100 / var(--crop-w)); }
  .stat-strip { grid-template-columns: 1fr; }
  .scope-stat { border-right: 0; border-bottom: 1px solid var(--line); }
  .system-map { grid-template-columns: 1fr; }
  .layer-band { grid-template-columns: 1fr; }
  .mode-diagram { flex-direction: column; align-items: stretch; }
}
@media (pointer: coarse) {
  .trace-rail button, .stage-link .text-link { min-height: 44px; }
}
@media (prefers-reduced-motion: reduce) {
  .js .reveal .lineage-stages::before { transform: none; transition: none; }
}