/* ============================================================
   Trenthos IME - page-specific styles (live demo + FAQ).
   The :root shim
   below maps the old style.css tokens onto the v2 design system so
   the demo renders on-brand under /css/v2.css.
   ============================================================ */
:root {
  --bg: var(--ground);
  --bg-alt: var(--ground-warm);
  --bg-card: var(--card);
  --ink-soft: var(--ink-mute);
  --rule: var(--line);
  --rule-strong: #C9D8D4;
  --accent-glow: rgba(21, 113, 113, 0.14);
  --sans: var(--font-body);
  --mono: ui-monospace, "Cascadia Code", Consolas, monospace;
  --radius: 12px;
}

/* ---------- How it works: three steps ---------- */
.cd-steps {
  list-style: none;
  padding: 0;
  margin: 48px 0 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.cd-step {
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 26px 24px 24px;
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}
.cd-step:hover {
  border-color: var(--rule-strong);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(15, 23, 42, 0.05);
}
.cd-step-no {
  display: block;
  font-family: var(--sans);
  font-feature-settings: "tnum";
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 18px;
}
.cd-step h4 { font-size: 1rem; margin-bottom: 6px; }
.cd-step p { font-size: 0.92rem; color: var(--ink-soft); margin: 0; line-height: 1.6; }
@media (max-width: 880px) { .cd-steps { grid-template-columns: 1fr; } }

/* ---------- Who it's for: two audience cards ---------- */
.cd-audience {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 48px;
}
.cd-audience-card {
  background: var(--bg);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 30px 28px 28px;
}
.cd-audience-card h3 {
  font-size: clamp(1.3rem, 2vw, 1.5rem);
  margin: 12px 0 10px;
}
.cd-audience-card p { font-size: 0.95rem; line-height: 1.65; margin: 0; }
@media (max-width: 760px) { .cd-audience { grid-template-columns: 1fr; } }

/* ---------- Closing note under the CTA band ---------- */
.cd-closing-note {
  margin-top: 18px;
  font-size: 0.84rem;
  color: var(--ink-mute);
}

/* ---------- FAQ ---------- */
.cd-faq {
  margin-top: 48px;
  border-top: 1px solid var(--rule);
}
.cd-faq-item {
  border-bottom: 1px solid var(--rule);
}
.cd-faq-item summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 2px;
  font-family: var(--sans);
  font-size: 1.02rem;
  font-weight: 600;
  letter-spacing: -0.005em;
  color: var(--ink);
  transition: color 0.15s ease;
}
.cd-faq-item summary::-webkit-details-marker { display: none; }
.cd-faq-item summary::after {
  content: "+";
  flex-shrink: 0;
  font-family: var(--sans);
  font-weight: 400;
  font-size: 1.3rem;
  line-height: 1;
  color: var(--accent);
  transition: transform 0.2s ease;
}
.cd-faq-item[open] summary::after { transform: rotate(45deg); }
.cd-faq-item summary:hover { color: var(--accent-deep); }
.cd-faq-item p {
  margin: 0 0 24px;
  max-width: 70ch;
  font-size: 0.96rem;
  line-height: 1.7;
  color: var(--ink-soft);
}

/* ============================================================
   The live demo
   Container: #ime-demo (.cd-demo). All interior DOM is built by
   /ime/demo.js from the dataset in /ime/demo-data.js.
   ============================================================ */

.cd-demo {
  margin-top: 48px;
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.05);
  overflow: hidden;
}
.cd-demo-fallback { padding: 28px 30px; margin: 0; font-size: 0.95rem; }
.cd-demo-disclaimer {
  margin: 16px 2px 0;
  font-size: 0.82rem;
  color: var(--ink-mute);
}

/* Header bar */
.cd-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding: 14px 22px;
  border-bottom: 1px solid var(--rule);
  background: var(--bg-alt);
}
.cd-head-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  min-width: 0;
}
.cd-head-badge {
  font-family: var(--sans);
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-deep);
  background: var(--accent-soft);
  border-radius: 4px;
  padding: 3px 8px;
  white-space: nowrap;
}
.cd-head-title {
  font-family: var(--sans);
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--ink);
}
.cd-head-claim {
  font-family: var(--mono);
  font-size: 0.74rem;
  color: var(--ink-mute);
  white-space: nowrap;
}
.cd-controls { display: flex; gap: 8px; }
.cd-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--sans);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--ink-soft);
  background: var(--bg-card);
  border: 1px solid var(--rule-strong);
  border-radius: 6px;
  padding: 6px 12px;
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}
.cd-btn:hover { color: var(--ink); border-color: var(--ink); }
.cd-btn[hidden] { display: none; }

/* Body: documents rail + workspace */
.cd-body {
  display: grid;
  grid-template-columns: 320px 1fr;
  min-height: 480px;
}
@media (max-width: 880px) {
  .cd-body { grid-template-columns: 1fr; min-height: 0; }
}

/* Documents rail */
.cd-docs {
  border-right: 1px solid var(--rule);
  padding: 18px 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-card) 30%);
}
@media (max-width: 880px) {
  .cd-docs {
    border-right: 0;
    border-bottom: 1px solid var(--rule);
    flex-direction: row;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding: 14px 16px;
  }
}
.cd-docs-label {
  font-family: var(--sans);
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin: 0 0 8px 4px;
}
@media (max-width: 880px) { .cd-docs-label { display: none; } }
.cd-doc {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border: 1px solid transparent;
  border-radius: 8px;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.35s ease, transform 0.35s ease,
              border-color 0.2s ease, background 0.2s ease;
}
.cd-doc.is-in { opacity: 1; transform: none; }
.cd-doc.is-active {
  border-color: var(--accent);
  background: var(--accent-soft);
}
@media (max-width: 880px) {
  .cd-doc { flex: 0 0 auto; max-width: 230px; }
}
.cd-doc-id {
  flex-shrink: 0;
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--accent-deep);
  background: var(--accent-soft);
  border-radius: 4px;
  padding: 3px 6px;
  min-width: 26px;
  text-align: center;
}
.cd-doc.is-active .cd-doc-id { background: var(--accent); color: #fff; }
.cd-doc-text {
  min-width: 0;
  display: flex;
  flex-direction: column;
}
.cd-doc-title {
  display: block;
  font-family: var(--sans);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--ink);
  line-height: 1.3;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.cd-doc-pages {
  font-family: var(--mono);
  font-size: 0.66rem;
  color: var(--ink-mute);
}
.cd-doc-tick {
  margin-left: auto;
  flex-shrink: 0;
  width: 16px; height: 16px;
  color: var(--accent);
  opacity: 0;
  transform: scale(0.6);
  transition: opacity 0.25s ease, transform 0.25s ease;
}
.cd-doc.is-read .cd-doc-tick { opacity: 1; transform: none; }

/* Source panel (page facsimile) - sits under the doc rail on desktop */
.cd-source {
  margin-top: auto;
  padding-top: 14px;
}
@media (max-width: 880px) {
  /* on mobile the source panel is re-parented under the workspace by JS */
  .cd-source { display: none; }
}
.cd-source-card {
  border: 1px solid var(--rule);
  border-radius: 10px;
  background: var(--bg-card);
  overflow: hidden;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.cd-source-card.is-live {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.cd-source-head {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 12px;
  border-bottom: 1px solid var(--rule);
  background: var(--bg-alt);
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--ink-soft);
  white-space: nowrap;
  overflow: hidden;
}
.cd-source-head strong { color: var(--accent-deep); font-weight: 600; }
.cd-source-head .cd-source-doc {
  overflow: hidden;
  text-overflow: ellipsis;
}
.cd-source-page { margin-left: auto; color: var(--ink-mute); flex-shrink: 0; }
.cd-source-body {
  padding: 12px 14px;
  min-height: 96px;
  font-family: var(--mono);
  font-size: 0.7rem;
  line-height: 1.75;
  color: var(--ink-soft);
}
.cd-source-line { display: block; border-radius: 3px; padding: 0 4px; }
.cd-source-line.is-hit {
  background: rgba(13, 148, 136, 0.16);
  color: var(--ink);
  font-weight: 500;
}
.cd-source-hint {
  font-family: var(--sans);
  font-size: 0.8rem;
  color: var(--ink-mute);
  padding: 4px;
  line-height: 1.55;
}

/* Workspace (right column) */
.cd-work {
  padding: 18px 22px 22px;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

/* Pipeline strip */
.cd-pipeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-bottom: 16px;
}
@media (max-width: 640px) { .cd-pipeline { grid-template-columns: repeat(2, 1fr); } }
.cd-stage {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 8px 10px;
  border: 1px solid var(--rule);
  border-radius: 8px;
  background: var(--bg);
  transition: border-color 0.25s ease, background 0.25s ease, opacity 0.25s ease;
  opacity: 0.55;
}
.cd-stage.is-active { opacity: 1; border-color: var(--accent); background: var(--accent-soft); }
.cd-stage.is-done { opacity: 1; }
.cd-stage-dot {
  flex-shrink: 0;
  width: 16px; height: 16px;
  display: grid;
  place-items: center;
}
.cd-stage-dot::before {
  content: "";
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--rule-strong);
}
.cd-stage.is-active .cd-stage-dot::before {
  background: var(--accent);
  animation: cdPulse 1s ease-in-out infinite;
}
.cd-stage.is-done .cd-stage-dot::before { display: none; }
.cd-stage-dot svg { display: none; width: 14px; height: 14px; color: var(--accent); }
.cd-stage.is-done .cd-stage-dot svg { display: block; }
@keyframes cdPulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(0.7); opacity: 0.5; }
}
.cd-stage-label {
  font-family: var(--sans);
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.25;
}
.cd-stage-detail {
  display: block;
  font-family: var(--sans);
  font-size: 0.68rem;
  font-weight: 400;
  color: var(--ink-mute);
}

/* Output tabs */
.cd-tabs {
  display: flex;
  gap: 6px;
  margin-bottom: 12px;
}
.cd-tab {
  font-family: var(--sans);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--ink-soft);
  background: transparent;
  border: 1px solid var(--rule);
  border-radius: 999px;
  padding: 6px 14px;
  cursor: pointer;
  transition: color 0.15s ease, background 0.15s ease, border-color 0.15s ease, opacity 0.2s ease;
}
.cd-tab[disabled] { opacity: 0.45; cursor: default; }
.cd-tab[aria-selected="true"] {
  color: #fff;
  background: var(--accent);
  border-color: var(--accent);
}
.cd-tab .cd-tab-count {
  font-family: var(--mono);
  font-size: 0.66rem;
  opacity: 0.8;
  margin-left: 4px;
}

/* Output panels */
.cd-panel { display: none; }
.cd-panel.is-shown { display: block; }
.cd-output {
  flex: 1;
  border: 1px solid var(--rule);
  border-radius: 10px;
  background: var(--bg-card);
  padding: 16px 18px;
  overflow-y: auto;
  max-height: 460px;
  scrollbar-width: thin;
}
@media (max-width: 880px) { .cd-output { max-height: 400px; } }

/* Waiting state before the run starts */
.cd-idle {
  display: grid;
  place-items: center;
  min-height: 220px;
  text-align: center;
  color: var(--ink-mute);
  font-size: 0.9rem;
  padding: 20px;
}

/* Chronology */
.cd-chrono { list-style: none; margin: 0; padding: 0; }
.cd-chrono li {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 4px 16px;
  padding: 9px 2px;
  border-bottom: 1px solid var(--rule);
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.35s ease, transform 0.35s ease;
}
.cd-chrono li.is-in { opacity: 1; transform: none; }
.cd-chrono li:last-child { border-bottom: 0; }
.cd-chrono-date {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--ink-mute);
  padding-top: 3px;
  white-space: nowrap;
}
.cd-chrono-text {
  font-family: var(--sans);
  font-size: 0.88rem;
  line-height: 1.55;
  color: var(--ink);
}
@media (max-width: 560px) {
  .cd-chrono li { grid-template-columns: 1fr; gap: 2px; }
}

/* Source reference chip (shared by chronology + report) */
.cd-ref {
  display: inline-block;
  vertical-align: baseline;
  font-family: var(--mono);
  font-size: 0.64rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--accent-deep);
  background: var(--accent-soft);
  border: 0;
  border-radius: 4px;
  padding: 1px 6px;
  margin-left: 7px;
  cursor: pointer;
  white-space: nowrap;
  opacity: 0;
  transform: scale(0.8);
  transition: opacity 0.3s ease, transform 0.3s ease, background 0.15s ease, color 0.15s ease;
}
.is-in .cd-ref, .cd-ref.is-in { opacity: 1; transform: none; }
.cd-ref:hover, .cd-sentence.is-active .cd-ref, .cd-ref.is-active {
  background: var(--accent);
  color: #fff;
}

/* Report */
.cd-report { font-family: var(--sans); }
.cd-report-sec {
  /* the global stylesheet gives every <section> page-scale padding - reset it */
  padding: 0;
  margin-bottom: 18px;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}
.cd-report-sec.is-in { opacity: 1; transform: none; }
.cd-report-sec:last-child { margin-bottom: 0; }
.cd-report-h {
  font-family: var(--sans);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin: 0 0 8px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--rule);
}
.cd-report-p { margin: 0; font-size: 0.9rem; line-height: 1.9; color: var(--ink); }

/* A sentence is a real button so it is keyboard-focusable */
.cd-sentence {
  display: inline;
  font: inherit;
  line-height: inherit;
  color: inherit;
  text-align: left;
  background: transparent;
  border: 0;
  padding: 1px 2px;
  margin: 0;
  border-radius: 4px;
  cursor: pointer;
  transition: background 0.15s ease;
}
.cd-sentence:hover, .cd-sentence:focus-visible, .cd-sentence.is-active {
  background: rgba(13, 148, 136, 0.12);
}
.cd-sentence--flagged { cursor: default; }

/* Flags: doctor-input (amber) and honest-gap (grey) */
.cd-flag {
  display: inline-block;
  vertical-align: baseline;
  font-family: var(--sans);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: 4px;
  padding: 2px 7px;
  margin-left: 7px;
  white-space: nowrap;
}
.cd-flag--doctor { color: #92400E; background: #FEF3C7; }
.cd-flag--gap { color: var(--ink-soft); background: var(--bg-alt); border: 1px solid var(--rule-strong); }
.cd-sentence--doctor { background: rgba(245, 158, 11, 0.10); }
.cd-sentence--doctor:hover, .cd-sentence--doctor:focus-visible { background: rgba(245, 158, 11, 0.18); }

/* End caption */
.cd-endcap {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 14px;
  font-family: var(--sans);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--ink-soft);
  opacity: 0;
  transition: opacity 0.5s ease;
}
.cd-endcap.is-in { opacity: 1; }
.cd-endcap .sep { color: var(--rule-strong); }
.cd-endcap .cd-endcap-note {
  flex-basis: 100%;
  text-align: center;
  font-weight: 400;
  font-size: 0.72rem;
  color: var(--ink-mute);
}

/* Mobile source panel slot (JS moves .cd-source-card here below 880px) */
.cd-source-mobile { display: none; }
@media (max-width: 880px) {
  .cd-source-mobile { display: block; margin-top: 12px; }
}

/* Status line for screen readers + visible narration */
.cd-status {
  font-family: var(--sans);
  font-size: 0.76rem;
  color: var(--ink-mute);
  min-height: 1.2em;
  margin: 0 0 10px;
}

@media (prefers-reduced-motion: reduce) {
  .cd-doc, .cd-chrono li, .cd-report-sec, .cd-ref, .cd-endcap { transition: none; }
}