/* ============================================================
   OctosX — Interactive components (hxi- prefix)
   Loaded by index, platform, how-we-price and
   solutions/thermal-risk (contact.html loads only the JS for
   the quote-prefill). Pairs with scripts/interactive.js.
   All demo data shown by these components is synthetic and
   labeled as illustrative in the markup.
   ============================================================ */

/* ── Subhero ambient AI canvas ───────────────────────────────── */
.hx-subhero__fx {
  position: absolute;
  inset: 0;
  z-index: -1;
  width: 100%;
  height: 100%;
  pointer-events: none;
  mask-image: linear-gradient(to bottom, #000 74%, transparent 100%);
  -webkit-mask-image: linear-gradient(to bottom, #000 74%, transparent 100%);
}

/* ── Shared: illustrative-data badge ─────────────────────────── */
.hxi-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4375rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-tertiary);
  border: 1px dashed var(--color-divider);
  border-radius: 999px;
  padding: 0.3125rem 0.75rem;
}
.hxi-badge--ondark { color: var(--color-text-on-dark-muted); border-color: rgba(255,255,255,0.2); }

/* ── Pipeline (sensor-to-decision) ───────────────────────────── */
.hxi-pipe__track {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}
.hxi-pipe__stage {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: 1.125rem 0.5rem 0.875rem;
  background: var(--color-bg);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-md);
  cursor: pointer;
  font: inherit;
  color: var(--color-text-secondary);
  transition: border-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
}
.hxi-pipe__stage:hover { transform: translateY(-3px); box-shadow: var(--shadow-sm); }
.hxi-pipe__stage[aria-pressed="true"] {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 1px var(--color-accent), var(--shadow-md);
  color: var(--color-text-primary);
}
.hxi-pipe__stage-icon {
  width: 40px; height: 40px;
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  background: rgba(49,130,206,0.1);
  color: #2B6CB0;
}
.hxi-pipe__stage[aria-pressed="true"] .hxi-pipe__stage-icon {
  background: var(--color-accent-soft);
  color: var(--color-accent-hover);
}
.hxi-pipe__stage-label {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 600;
  line-height: 1.25;
  text-align: center;
}
.hxi-pipe__stage-num {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  color: var(--color-text-tertiary);
  letter-spacing: 0.1em;
}
/* connector arrow + animated data dot */
.hxi-pipe__stage::after {
  content: "";
  position: absolute;
  top: 50%;
  right: -0.5rem;
  width: 0.5rem;
  height: 2px;
  background: var(--color-divider);
}
.hxi-pipe__stage:last-child::after { display: none; }
.hxi-pipe__stage::before {
  content: "";
  position: absolute;
  top: calc(50% - 2px);
  right: -0.4375rem;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
  opacity: 0;
  animation: hxi-dot-hop 3.6s linear infinite;
  animation-delay: calc(var(--hxi-i, 0) * 0.6s);
  z-index: 1;
}
.hxi-pipe__stage:last-child::before { display: none; }
@keyframes hxi-dot-hop {
  0%, 78% { opacity: 0; transform: translateX(-3px); }
  82%     { opacity: 1; }
  94%     { opacity: 1; transform: translateX(4px); }
  100%    { opacity: 0; transform: translateX(6px); }
}
.hxi-pipe__panel {
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  background: var(--color-bg);
  box-shadow: var(--shadow-sm);
  padding: 1.75rem 2rem;
  min-height: 180px;
}
.hxi-pipe__panel-title {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin: 0 0 0.5rem;
  display: flex; align-items: center; gap: 0.625rem;
}
.hxi-pipe__panel-desc { font-size: 0.9375rem; line-height: 1.65; color: var(--color-text-secondary); margin: 0 0 1rem; }
.hxi-pipe__chips { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.hxi-chip {
  display: inline-flex; align-items: center; gap: 0.375rem;
  font-size: 0.8125rem;
  padding: 0.375rem 0.75rem;
  border-radius: 999px;
  border: 1px solid var(--color-divider);
  background: var(--color-bg-subtle);
  color: var(--color-text-secondary);
}

/* ── Anomaly triage explorer (dark sections) ─────────────────── */
.hxi-triage__chips { display: flex; flex-wrap: wrap; gap: 0.625rem; justify-content: center; margin-bottom: 1.75rem; }
.hxi-triage__chip {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.5rem 0.9375rem;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.14);
  background: rgba(255,255,255,0.04);
  color: var(--color-text-on-dark-muted);
  font: inherit;
  font-size: 0.875rem;
  cursor: pointer;
  transition: border-color var(--transition-base), color var(--transition-base), background var(--transition-base);
}
.hxi-triage__chip:hover { border-color: rgba(255,255,255,0.35); color: #fff; }
.hxi-triage__chip[aria-pressed="true"] { border-color: var(--color-accent); color: #fff; background: rgba(245,158,11,0.12); }
.hxi-triage__dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.hxi-tone-ok   { background: #34D399; }
.hxi-tone-warn { background: #FBBF24; }
.hxi-tone-crit { background: #F87171; }
.hxi-tone-dq   { background: #94A3B8; }
.hxi-triage__panel {
  max-width: 780px;
  margin: 0 auto;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,0.04);
  backdrop-filter: blur(6px);
  padding: 1.75rem 2rem;
}
.hxi-triage__status {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.1em; text-transform: uppercase;
  color: #fff; margin-bottom: 0.875rem;
}
.hxi-triage__meaning { color: #E2E8F0; font-size: 1rem; line-height: 1.6; margin: 0 0 1.25rem; }
.hxi-triage__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.hxi-triage__cell {
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-md);
  padding: 0.875rem 1.125rem;
  background: rgba(255,255,255,0.03);
}
.hxi-triage__cell-label {
  font-family: var(--font-mono); font-size: 0.625rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--color-text-on-dark-muted); margin-bottom: 0.375rem;
}
.hxi-triage__cell-text { font-size: 0.875rem; line-height: 1.55; color: #CBD5E1; }
.hxi-triage__note {
  text-align: center;
  margin: 1.5rem auto 0;
  max-width: 60ch;
  font-size: 0.875rem;
  color: var(--color-text-on-dark-muted);
}

/* ── Sample risk summary (report demo) ───────────────────────── */
.hxi-report {
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  background: #fff;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.hxi-report__bar {
  display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap;
  padding: 0.875rem 1.25rem;
  background: var(--color-brand-primary);
}
.hxi-report__bar-title {
  font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.08em;
  color: #D8E0EA;
  margin-right: auto;
}
.hxi-report__toggle {
  display: inline-flex;
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 999px;
  overflow: hidden;
}
.hxi-report__toggle-btn {
  font: inherit; font-size: 0.8125rem;
  padding: 0.375rem 1rem;
  background: transparent;
  border: none;
  color: #CBD5E1;
  cursor: pointer;
}
.hxi-report__toggle-btn[aria-pressed="true"] { background: var(--color-accent); color: #1A202C; font-weight: 600; }
.hxi-report__body { display: grid; grid-template-columns: 300px 1fr; }
.hxi-report__side {
  padding: 1.5rem;
  border-right: 1px solid var(--color-divider);
  background: var(--color-bg-subtle);
}
.hxi-report__site-name { font-family: var(--font-heading); font-weight: 700; font-size: 1rem; color: var(--color-text-primary); margin: 0 0 0.25rem; }
.hxi-report__site-loc { font-size: 0.8125rem; color: var(--color-text-tertiary); margin: 0 0 1.25rem; }
.hxi-report__stat { display: flex; justify-content: space-between; gap: 0.75rem; font-size: 0.875rem; padding: 0.5rem 0; border-bottom: 1px dashed var(--color-divider); }
.hxi-report__stat dt { color: var(--color-text-secondary); }
.hxi-report__stat dd { margin: 0; font-weight: 600; color: var(--color-text-primary); font-family: var(--font-mono); font-size: 0.8125rem; }
.hxi-report__limits { margin: 1.25rem 0 0; padding: 0.875rem 1rem; border-radius: var(--radius-md); background: #FFFBEB; border: 1px solid #FDE68A; }
.hxi-report__limits-label { font-family: var(--font-mono); font-size: 0.625rem; letter-spacing: 0.12em; text-transform: uppercase; color: #92400E; margin-bottom: 0.375rem; }
.hxi-report__limits-text { font-size: 0.8125rem; line-height: 1.55; color: #78350F; margin: 0; }
.hxi-report__main { padding: 1.5rem; }
.hxi-report__main-title { font-family: var(--font-heading); font-size: 0.9375rem; font-weight: 700; color: var(--color-text-primary); margin: 0 0 1rem; }
.hxi-finding {
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-md);
  margin-bottom: 0.875rem;
  overflow: hidden;
}
.hxi-finding__head {
  display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap;
  width: 100%;
  padding: 0.875rem 1.125rem;
  background: none; border: none; font: inherit; text-align: left; cursor: pointer;
}
.hxi-finding__head:hover { background: var(--color-bg-subtle); }
.hxi-sev {
  font-family: var(--font-mono); font-size: 0.625rem; font-weight: 600;
  letter-spacing: 0.08em; text-transform: uppercase;
  padding: 0.25rem 0.625rem; border-radius: 999px;
  white-space: nowrap;
}
.hxi-sev--crit  { background: #FEE2E2; color: #991B1B; }
.hxi-sev--warn  { background: #FEF3C7; color: #92400E; }
.hxi-sev--watch { background: #E0F2FE; color: #075985; }
.hxi-sev--dq    { background: #E2E8F0; color: #334155; }
.hxi-ev {
  font-family: var(--font-mono); font-size: 0.625rem;
  letter-spacing: 0.06em; text-transform: uppercase;
  padding: 0.25rem 0.625rem; border-radius: 4px;
  border: 1px solid var(--color-divider);
  color: var(--color-text-tertiary);
  white-space: nowrap;
}
.hxi-finding__title { font-size: 0.9375rem; font-weight: 600; color: var(--color-text-primary); flex: 1 1 240px; }
.hxi-finding__chev { color: var(--color-text-tertiary); transition: transform var(--transition-base); flex-shrink: 0; }
.hxi-finding__head[aria-expanded="true"] .hxi-finding__chev { transform: rotate(180deg); }
.hxi-finding__detail { display: none; padding: 0 1.125rem 1.125rem; }
.hxi-finding__detail.open { display: block; }
.hxi-finding__rationale { font-size: 0.875rem; line-height: 1.6; color: var(--color-text-secondary); margin: 0 0 0.875rem; }
.hxi-finding__trace {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 0.5rem;
  margin-bottom: 0.875rem;
}
.hxi-finding__trace-cell { background: var(--color-bg-subtle); border-radius: var(--radius-sm); padding: 0.5rem 0.75rem; }
.hxi-finding__trace-label { font-family: var(--font-mono); font-size: 0.5625rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--color-text-tertiary); }
.hxi-finding__trace-val { font-size: 0.8125rem; font-weight: 600; color: var(--color-text-primary); font-family: var(--font-mono); }
.hxi-finding__action {
  display: flex; gap: 0.625rem; align-items: flex-start;
  font-size: 0.875rem; color: var(--color-text-primary);
  background: var(--color-accent-soft);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
}
.hxi-finding__action svg { color: var(--color-accent-hover); flex-shrink: 0; margin-top: 2px; }
.hxi-report__foot {
  padding: 0.875rem 1.5rem;
  border-top: 1px solid var(--color-divider);
  font-size: 0.75rem; color: var(--color-text-tertiary);
  background: var(--color-bg-subtle);
}

/* ── Threshold simulator ─────────────────────────────────────── */
.hxi-sim {
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,0.03);
  padding: 1.5rem;
}
.hxi-sim__chart-wrap { position: relative; }
.hxi-sim svg { display: block; width: 100%; height: auto; }
.hxi-sim__handle { cursor: ns-resize; touch-action: none; }
.hxi-sim__handle:focus { outline: none; }
.hxi-sim__handle:focus .hxi-sim__handle-grip { stroke: #fff; stroke-width: 2; }
.hxi-sim__readout {
  display: flex; flex-wrap: wrap; gap: 0.75rem; align-items: center;
  margin: 1rem 0 0.75rem;
  font-family: var(--font-mono); font-size: 0.8125rem; color: #CBD5E1;
}
.hxi-sim__chip {
  display: inline-flex; align-items: center; gap: 0.4375rem;
  padding: 0.3125rem 0.75rem; border-radius: 999px;
  font-size: 0.75rem;
  border: 1px solid rgba(255,255,255,0.15);
}
.hxi-sim__chip--warn { color: #FCD34D; border-color: rgba(245,158,11,0.4); }
.hxi-sim__chip--crit { color: #FCA5A5; border-color: rgba(248,113,113,0.4); }
.hxi-sim__chip--ror  { color: #7DD3FC; border-color: rgba(56,189,248,0.4); }
.hxi-sim__chip--ok   { color: #6EE7B7; border-color: rgba(16,185,129,0.4); }
.hxi-sim__chip--info { color: #7DD3FC; border-color: rgba(56,189,248,0.4); }
.hxi-sim__log { list-style: none; margin: 0.75rem 0 0; padding: 0; display: flex; flex-direction: column; gap: 0.375rem; }
.hxi-sim__log li {
  display: flex; gap: 0.625rem; align-items: baseline;
  font-size: 0.8125rem; color: #CBD5E1;
  padding: 0.5rem 0.875rem;
  border-left: 2px solid rgba(255,255,255,0.15);
  background: rgba(255,255,255,0.03);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.hxi-sim__log-time { font-family: var(--font-mono); font-size: 0.75rem; color: var(--color-text-on-dark-muted); flex-shrink: 0; }
.hxi-sim__log li.crit { border-left-color: #F87171; }
.hxi-sim__log li.warn { border-left-color: #FBBF24; }
.hxi-sim__hint { font-size: 0.8125rem; color: var(--color-text-on-dark-muted); margin: 1rem 0 0; }

/* ── Range demo (solutions subpages: waste finder / noise / vibration) ── */
.hxi-range {
  background: var(--color-bg-darker);
  border: 1px solid var(--color-divider-dark);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: 0 24px 64px rgba(0,0,0,0.4);
}
.hxi-range__head {
  display: flex; justify-content: space-between; align-items: baseline; gap: 1rem;
  margin-bottom: 0.875rem; flex-wrap: wrap;
}
.hxi-range__label {
  font-size: 0.875rem; font-weight: 600; color: var(--color-text-on-dark);
}
.hxi-range__val {
  font-family: var(--font-mono); font-size: 1.25rem; font-weight: 700;
  color: var(--color-accent);
}
.hxi-range__slider {
  -webkit-appearance: none; appearance: none;
  width: 100%; height: 6px; border-radius: 999px;
  background: rgba(255,255,255,0.14);
  outline-offset: 4px;
}
.hxi-range__slider::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 20px; height: 20px; border-radius: 50%;
  background: var(--color-accent);
  border: 3px solid #050E1F;
  box-shadow: 0 2px 8px rgba(0,0,0,0.45);
  cursor: pointer;
}
.hxi-range__slider::-moz-range-thumb {
  width: 20px; height: 20px; border-radius: 50%;
  background: var(--color-accent);
  border: 3px solid #050E1F;
  box-shadow: 0 2px 8px rgba(0,0,0,0.45);
  cursor: pointer;
}
.hxi-range__status {
  display: flex; flex-wrap: wrap; gap: 0.75rem; align-items: center;
  margin: 1.125rem 0 0.75rem;
  font-family: var(--font-mono); font-size: 0.8125rem; color: #CBD5E1;
}
.hxi-range__note { font-size: 0.8125rem; line-height: 1.55; color: var(--color-text-on-dark-muted); margin: 0.75rem 0 0; }

/* ── Line tabs (manufacturing-visibility.html) ───────────────────────────
   Reuses chipTabs(), which hardcodes .hxi-imap__tabs/__tab/__panel (light
   card). Only the KPI grid inside the panel is bespoke here. ── */
.hxi-lines__title { font-family: var(--font-heading); font-weight: 700; font-size: 1.0625rem; color: var(--color-text-primary); margin: 0 0 1.25rem; }
.hxi-lines__kpis { display: grid; grid-template-columns: repeat(4,1fr); gap: 1rem; }
.hxi-lines__kpi { text-align: center; padding: 1rem 0.5rem; background: var(--color-bg-subtle); border-radius: var(--radius-md); }
.hxi-lines__kpi-val { font-family: var(--font-mono); font-size: 1.5rem; font-weight: 700; color: var(--color-accent-hover); }
.hxi-lines__kpi-lbl { font-size: 0.6875rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--color-text-tertiary); margin-top: 0.25rem; }
@media (max-width: 640px) { .hxi-lines__kpis { grid-template-columns: repeat(2,1fr); } }

/* ── Deployment estimator ────────────────────────────────────── */
.hxi-est { display: grid; grid-template-columns: 1.4fr 1fr; gap: 1.5rem; align-items: start; }
.hxi-est__rows { display: flex; flex-direction: column; gap: 0.625rem; }
.hxi-est__row {
  display: flex; align-items: center; gap: 1rem;
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  padding: 0.875rem 1.125rem;
}
.hxi-est__row-icon {
  width: 38px; height: 38px; border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  background: rgba(49,130,206,0.08); color: #2B6CB0;
  flex-shrink: 0;
}
.hxi-est__row-name { font-size: 0.9375rem; font-weight: 600; color: var(--color-text-primary); }
.hxi-est__row-sub { font-size: 0.75rem; color: var(--color-text-tertiary); font-family: var(--font-mono); }
.hxi-est__row-info { flex: 1; min-width: 0; }
.hxi-est__stepper { display: inline-flex; align-items: center; gap: 0.125rem; }
.hxi-est__btn {
  width: 30px; height: 30px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-divider);
  background: var(--color-bg-subtle);
  font-size: 1rem; line-height: 1;
  color: var(--color-text-primary);
  cursor: pointer;
}
.hxi-est__btn:hover { border-color: var(--color-accent); color: var(--color-accent-hover); }
.hxi-est__count {
  width: 42px; text-align: center;
  font-family: var(--font-mono); font-weight: 600; font-size: 0.9375rem;
  color: var(--color-text-primary);
}
.hxi-est__summary {
  position: sticky; top: 96px;
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  background: var(--color-brand-primary);
  color: #fff;
  padding: 1.75rem;
}
.hxi-est__summary-label {
  font-family: var(--font-mono); font-size: 0.6875rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: #FCD34D; margin-bottom: 0.75rem;
}
.hxi-est__summary-value {
  font-family: var(--font-heading); font-weight: 700;
  font-size: clamp(1.75rem, 3vw, 2.375rem);
  line-height: 1.1;
  margin-bottom: 0.375rem;
}
.hxi-est__summary-sub { font-size: 0.8125rem; color: #C7D2DE; line-height: 1.55; margin-bottom: 1.25rem; }
.hxi-est__summary-note { font-size: 0.75rem; color: #94A3B8; line-height: 1.5; margin-top: 1rem; }

/* ── Industry explorer (index) ───────────────────────────────── */
.hxi-imap__tabs { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.625rem; margin-bottom: 1.5rem; }
.hxi-imap__tab {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.625rem 1.125rem;
  border: 1px solid var(--color-divider);
  border-radius: 999px;
  background: var(--color-bg);
  font: inherit; font-size: 0.9375rem; font-weight: 500;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition-base);
}
.hxi-imap__tab svg { color: var(--color-text-tertiary); }
.hxi-imap__tab:hover { border-color: var(--color-accent); color: var(--color-text-primary); }
.hxi-imap__tab[aria-pressed="true"] {
  border-color: var(--color-accent);
  background: var(--color-accent-soft);
  color: var(--color-text-primary);
}
.hxi-imap__tab[aria-pressed="true"] svg { color: var(--color-accent-hover); }
.hxi-imap__panel {
  max-width: 860px; margin: 0 auto;
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  background: var(--color-bg);
  box-shadow: var(--shadow-sm);
  padding: 1.75rem 2rem;
}
.hxi-imap__line { font-size: 1rem; line-height: 1.65; color: var(--color-text-secondary); margin: 0 0 1.25rem; }
.hxi-imap__assets-label {
  font-family: var(--font-mono); font-size: 0.625rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--color-text-tertiary); margin-bottom: 0.625rem;
}
.hxi-imap__assets { display: flex; flex-wrap: wrap; gap: 0.5rem; }

/* ── Risk-readiness self-check ───────────────────────────────── */
.hxi-rd {
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  background: var(--color-bg);
  box-shadow: var(--shadow-sm);
  padding: 1.75rem 2rem;
}
.hxi-rd__progress {
  display: flex; align-items: center; gap: 0.375rem;
  margin-bottom: 1.25rem;
}
.hxi-rd__dot {
  width: 26px; height: 4px; border-radius: 2px;
  background: var(--color-divider);
  transition: background var(--transition-base);
}
.hxi-rd__dot.done { background: var(--color-accent); }
.hxi-rd__dot.now { background: var(--color-brand-primary); }
.hxi-rd__count {
  margin-left: auto;
  font-family: var(--font-mono); font-size: 0.75rem;
  color: var(--color-text-tertiary);
}
.hxi-rd__q {
  font-family: var(--font-heading);
  font-size: 1.1875rem; font-weight: 700;
  color: var(--color-text-primary);
  margin: 0 0 1.25rem;
  line-height: 1.35;
}
.hxi-rd__opts { display: flex; flex-direction: column; gap: 0.625rem; }
.hxi-rd__opt {
  text-align: left;
  font: inherit; font-size: 0.9375rem;
  color: var(--color-text-secondary);
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-md);
  padding: 0.875rem 1.125rem;
  cursor: pointer;
  transition: border-color var(--transition-base), background var(--transition-base), color var(--transition-base);
}
.hxi-rd__opt:hover {
  border-color: var(--color-accent);
  background: var(--color-accent-soft);
  color: var(--color-text-primary);
}
.hxi-rd__back {
  margin-top: 1.125rem;
  font: inherit; font-size: 0.8125rem;
  color: var(--color-text-tertiary);
  background: none; border: none; padding: 0;
  cursor: pointer;
}
.hxi-rd__back:hover { color: var(--color-text-primary); }
.hxi-rd__result .hxi-triage__status { margin-bottom: 0.75rem; }

/* ── Responsive ──────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .hxi-pipe__track { grid-template-columns: repeat(3, 1fr); }
  .hxi-est { grid-template-columns: 1fr; }
  .hxi-est__summary { position: static; }
}
@media (min-width: 721px) and (max-width: 1024px) {
  .hxi-pipe__stage:nth-child(3)::after, .hxi-pipe__stage:nth-child(3)::before { display: none; }
}
@media (max-width: 720px) {
  .hxi-report__body { grid-template-columns: 1fr; }
  .hxi-report__side { border-right: none; border-bottom: 1px solid var(--color-divider); }
  .hxi-pipe__track { grid-template-columns: repeat(2, 1fr); }
  .hxi-pipe__stage:nth-child(even)::after, .hxi-pipe__stage:nth-child(even)::before { display: none; }
  .hxi-triage__grid { grid-template-columns: 1fr; }
  .hxi-pipe__panel { padding: 1.25rem; }
  .hxi-est__row { flex-wrap: wrap; }
}

/* ══════════════════════════════════════════════════════════════
   Multi-signal Risk Score Lab (platform.html, dark section)
   ══════════════════════════════════════════════════════════════ */
.hxr-teaser {
  display: inline-flex; align-items: center; gap: 0.5rem;
  margin-top: 1.25rem;
  padding: 0.45rem 1rem;
  border-radius: 999px;
  border: 1px solid rgba(245, 158, 11, 0.4);
  background: rgba(245, 158, 11, 0.08);
  color: var(--color-text-on-dark);
  font-size: 0.875rem;
  text-decoration: none;
  transition: background 0.2s, border-color 0.2s;
}
.hxr-teaser:hover { background: rgba(245, 158, 11, 0.16); border-color: var(--color-accent); }
.hxr-teaser__tag {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--color-accent);
  border: 1px solid rgba(245, 158, 11, 0.45);
  padding: 0.1rem 0.45rem;
  border-radius: 999px;
}

.hxr {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 1.5rem;
  margin-top: 2.5rem;
  text-align: left;
}
.hxr__scope, .hxr__panel {
  background: rgba(5, 14, 31, 0.72);
  border: 1px solid var(--color-divider-dark);
  border-radius: 16px;
  padding: 1.25rem;
}
.hxr__panel { padding: 1.5rem; display: flex; flex-direction: column; }

.hxr__scope-head {
  display: flex; justify-content: space-between; align-items: baseline;
  gap: 1rem; flex-wrap: wrap;
  margin-bottom: 0.875rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
}
.hxr__feed {
  display: inline-flex; align-items: center; gap: 0.45rem;
  text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--color-accent);
}
.hxr__feed-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--color-accent);
  animation: hxr-pulse 2s ease-in-out infinite;
}
@keyframes hxr-pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.25; } }
.hxr__probe { color: var(--color-text-on-dark-muted); }
.hxr__probe em { font-style: normal; opacity: 0.65; }

.hxr__canvas {
  display: block; width: 100%; height: 300px;
  border-radius: 10px;
  background: #050E1F;
  border: 1px solid rgba(148, 163, 184, 0.15);
}
.hxr__legend {
  display: flex; flex-wrap: wrap; gap: 0.5rem 1.1rem;
  margin-top: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-on-dark-muted);
}
.hxr__leg { display: inline-flex; align-items: center; gap: 0.4rem; }
.hxr__leg i { width: 10px; height: 10px; border-radius: 3px; }
.hxr__leg-n { border-radius: 50% !important; opacity: 0.85; }
.hxr__leg b { color: var(--color-text-on-dark); font-weight: 600; }
.hxr__leg--thd { margin-left: auto; }

.hxr__scenarios { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1.1rem; }
.hxr__scn {
  font: inherit; font-size: 0.8125rem;
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--color-divider-dark);
  background: rgba(255, 255, 255, 0.04);
  color: var(--color-text-on-dark-muted);
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}
.hxr__scn:hover { border-color: var(--color-accent); color: var(--color-text-on-dark); }
.hxr__scn[aria-pressed='true'] {
  border-color: var(--color-accent);
  background: rgba(245, 158, 11, 0.14);
  color: #fff;
}

.hxr__gauge { position: relative; width: min(230px, 100%); margin: 0 auto; }
.hxr__gauge-svg { display: block; width: 100%; }
.hxr__gauge-track { stroke: #1F3553; }
.hxr__gauge-num {
  position: absolute; left: 0; right: 0; bottom: 4px;
  text-align: center;
  font-family: var(--font-mono);
}
.hxr__gauge-score { font-size: 2.6rem; font-weight: 700; line-height: 1; }
.hxr__gauge-cap { font-size: 0.8125rem; color: var(--color-text-on-dark-muted); margin-left: 0.2rem; }

.hxr__band {
  display: flex; align-items: center; justify-content: center; gap: 0.5rem;
  margin: 0.4rem 0 1rem;
  color: #fff; font-weight: 600; font-size: 0.9375rem;
}
.hxr__band-rule {
  font-style: normal;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  text-transform: uppercase; letter-spacing: 0.07em;
  color: var(--color-accent);
  border: 1px solid rgba(245, 158, 11, 0.45);
  border-radius: 999px;
  padding: 0.12rem 0.55rem;
  margin-left: 0.35rem;
}

.hxr__insight {
  font-size: 0.9375rem; line-height: 1.6;
  color: var(--color-text-on-dark-muted);
  border-left: 2px solid var(--color-accent);
  padding-left: 0.875rem;
  margin: 0 0 1.25rem;
  min-height: 4.5em;
}

.hxr__factors { display: grid; gap: 0.55rem; margin-bottom: 1.25rem; }
.hxr__factor {
  display: grid;
  grid-template-columns: 8.5rem 1fr 2.2rem;
  align-items: center; gap: 0.75rem;
  font-size: 0.8125rem;
}
.hxr__factor-label { color: var(--color-text-on-dark-muted); white-space: nowrap; }
.hxr__factor-label em { font-style: normal; opacity: 0.55; font-size: 0.6875rem; }
.hxr__factor-track {
  display: block; height: 6px;
  border-radius: 999px;
  background: rgba(148, 163, 184, 0.16);
  overflow: hidden;
}
.hxr__factor-bar {
  display: block; height: 100%; width: 0;
  border-radius: inherit;
  transition: width 0.45s ease, background 0.3s ease;
}
.hxr__factor-val {
  font-family: var(--font-mono);
  color: var(--color-text-on-dark);
  text-align: right;
}

.hxr__sliders {
  border-top: 1px solid var(--color-divider-dark);
  padding-top: 1.25rem;
  display: grid; gap: 1rem;
  margin-top: auto;
}
.hxr__slider-head {
  display: flex; justify-content: space-between; align-items: baseline;
  margin-bottom: 0.4rem;
}
.hxr__slider-label { font-size: 0.8125rem; color: var(--color-text-on-dark-muted); }
.hxr__slider-val {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--color-text-on-dark);
}
.hxr__slider input[type='range'] {
  width: 100%;
  accent-color: var(--color-accent);
  cursor: pointer;
}
.hxr .visually-hidden,
.hxir .visually-hidden,
.hxpt .visually-hidden {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ══════════════════════════════════════════════════════════════
   Plant Twin explorer (index.html, hxpt- prefix)
   ══════════════════════════════════════════════════════════════ */
.hxpt {
  background: rgba(5, 14, 31, 0.96);
  border: 1px solid var(--color-divider-dark);
  border-radius: 16px;
  padding: 1.25rem;
  margin-top: 2.5rem;
}
.hxpt__bar {
  display: flex; justify-content: space-between; align-items: baseline;
  gap: 1rem; flex-wrap: wrap;
  margin-bottom: 1rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
}
.hxpt__stats { color: var(--color-text-on-dark-muted); }
.hxpt__body {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 1.25rem;
}
.hxpt__stage {
  position: relative;
  aspect-ratio: 800 / 420;
  border-radius: 10px;
  background: #050E1F;
  border: 1px solid rgba(148, 163, 184, 0.15);
  overflow: hidden;
}
@supports not (aspect-ratio: 1 / 1) {
  .hxpt__stage::before { content: ''; display: block; padding-top: 52.5%; }
}
.hxpt__floor { position: absolute; inset: 0; width: 100%; height: 100%; }
.hxpt__zones rect {
  fill: rgba(255, 255, 255, 0.025);
  stroke: rgba(148, 163, 184, 0.28);
  stroke-dasharray: 4 4;
}
.hxpt__zones text {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  fill: rgba(148, 163, 184, 0.75);
}
.hxpt__sweep {
  position: absolute; top: 0; bottom: 0; left: -90px; width: 90px;
  background: linear-gradient(90deg, rgba(245, 158, 11, 0) 0%, rgba(245, 158, 11, 0.07) 70%, rgba(245, 158, 11, 0.22) 100%);
  border-right: 1px solid rgba(245, 158, 11, 0.35);
  animation: hxpt-sweep 10s linear infinite;
  pointer-events: none;
}
@keyframes hxpt-sweep {
  0% { left: -90px; }
  100% { left: 100%; }
}
.hxpt__node {
  position: absolute;
  transform: translate(-50%, -50%);
  display: flex; align-items: center; justify-content: center;
  min-width: 44px; min-height: 44px;
  background: none; border: none; padding: 0;
  cursor: pointer;
  font: inherit;
}
/* Status is encoded in shape as well as color: ok = solid dot,
   warn = double ring, crit = solid + static halo (+ pulse), dq = hollow. */
.hxpt__node-dot {
  position: relative;
  width: 13px; height: 13px; border-radius: 50%;
  border: 2px solid rgba(5, 14, 31, 0.9);
  box-shadow: 0 0 0 1px rgba(247, 250, 252, 0.25);
}
.hxpt__node--ok .hxpt__node-dot { background: #34D399; }
.hxpt__node--warn .hxpt__node-dot {
  background: #FBBF24;
  box-shadow: 0 0 0 2px rgba(5, 14, 31, 0.9), 0 0 0 3.5px #FBBF24;
}
.hxpt__node--crit .hxpt__node-dot {
  background: #F87171;
  box-shadow: 0 0 0 3px rgba(248, 113, 113, 0.35), 0 0 0 6px rgba(248, 113, 113, 0.15);
}
.hxpt__node--crit .hxpt__node-dot::after {
  content: '';
  position: absolute; inset: -4px;
  border-radius: 50%;
  animation: hxpt-pulse 1.6s ease-out infinite;
}
.hxpt__node--dq .hxpt__node-dot {
  background: transparent;
  border-color: #94A3B8;
}
@keyframes hxpt-pulse {
  0% { box-shadow: 0 0 0 0 rgba(248, 113, 113, 0.55); }
  100% { box-shadow: 0 0 0 14px rgba(248, 113, 113, 0); }
}
.hxpt__node-tag {
  position: absolute;
  top: calc(50% + 12px); left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  letter-spacing: 0.04em;
  color: var(--color-text-on-dark-muted);
  background: rgba(5, 14, 31, 0.8);
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
  white-space: nowrap;
  pointer-events: none;
}
.hxpt__node:hover .hxpt__node-tag,
.hxpt__node:focus-visible .hxpt__node-tag,
.hxpt__node[aria-pressed='true'] .hxpt__node-tag { color: #fff; }
.hxpt__node[aria-pressed='true'] .hxpt__node-dot {
  box-shadow: 0 0 0 2px var(--color-accent);
}
.hxpt__node:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; border-radius: 8px; }

.hxpt__panel {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--color-divider-dark);
  border-radius: 10px;
  padding: 1.125rem 1.25rem;
  min-height: 100%;
}
.hxpt__panel-zone {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--color-accent);
  margin-bottom: 0.25rem;
}
.hxpt__panel-name {
  font-family: var(--font-heading);
  font-size: 1.0625rem;
  color: #fff;
  margin: 0 0 0.6rem;
}
.hxpt__panel .hxi-triage__status { color: #fff; margin-bottom: 0.75rem; }
.hxpt__spark {
  display: block; width: 100%; height: 56px;
  border-radius: 6px;
  background: rgba(5, 14, 31, 0.6);
  border: 1px solid rgba(148, 163, 184, 0.14);
}
.hxpt__spark-cap {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  color: var(--color-text-on-dark-muted);
  opacity: 0.7;
  margin: 0.35rem 0 0.85rem;
}
.hxpt__facts { display: grid; gap: 0.4rem; margin: 0 0 0.9rem; }
.hxpt__facts > div {
  display: grid;
  grid-template-columns: 7rem 1fr;
  gap: 0.5rem;
  font-size: 0.8125rem;
}
.hxpt__facts dt { color: var(--color-text-on-dark-muted); opacity: 0.75; }
.hxpt__facts dd { margin: 0; color: var(--color-text-on-dark); }
.hxpt__action {
  font-size: 0.8125rem; line-height: 1.55;
  color: var(--color-text-on-dark-muted);
  border-left: 2px solid var(--color-accent);
  padding-left: 0.75rem;
}
.hxpt__action span {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  text-transform: uppercase; letter-spacing: 0.07em;
  color: var(--color-accent);
  margin-bottom: 0.25rem;
}

/* ══════════════════════════════════════════════════════════════
   Incident Replay (index.html, hxir- prefix)
   ══════════════════════════════════════════════════════════════ */
.hxir {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 1.5rem;
  margin-top: 2.5rem;
  text-align: left;
}
.hxir__scope, .hxir__side {
  background: rgba(5, 14, 31, 0.96);
  border: 1px solid var(--color-divider-dark);
  border-radius: 16px;
  padding: 1.25rem;
}
.hxir__canvas {
  display: block; width: 100%; height: 300px;
  border-radius: 10px;
  background: #050E1F;
  border: 1px solid rgba(148, 163, 184, 0.15);
}
.hxir__controls {
  display: flex; align-items: center; gap: 0.875rem;
  margin-top: 1rem;
}
.hxir__play {
  flex: none;
  width: 40px; height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(245, 158, 11, 0.5);
  background: rgba(245, 158, 11, 0.12);
  color: var(--color-accent);
  display: inline-flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
}
.hxir__play:hover { background: rgba(245, 158, 11, 0.22); border-color: var(--color-accent); }
.hxir__scrub {
  flex: 1;
  accent-color: var(--color-accent);
  cursor: pointer;
}
.hxir__clock {
  flex: none;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--color-text-on-dark);
  min-width: 4.5rem;
  text-align: right;
}
.hxir__side .hxi-triage__status { color: #fff; margin-bottom: 0.5rem; }
.hxir__read { display: flex; align-items: baseline; gap: 0.75rem; margin-bottom: 1rem; }
.hxir__read-temp {
  font-family: var(--font-mono);
  font-size: 2rem; font-weight: 700; line-height: 1;
}
.hxir__read-sub {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-on-dark-muted);
}
.hxir__log {
  list-style: none;
  margin: 0; padding: 0;
  display: grid; gap: 0.45rem;
  border-top: 1px solid var(--color-divider-dark);
  padding-top: 1rem;
}
.hxir__evt {
  font-size: 0.8125rem; line-height: 1.5;
  color: var(--color-text-on-dark-muted);
  opacity: 0.7;
  transition: opacity 0.25s ease;
}
/* upcoming entries show only their timestamp — the story stays hidden
   without leaving illegible text on screen */
.hxir__evt .hxir__evt-x { visibility: hidden; }
.hxir__evt--on { opacity: 0.85; }
.hxir__evt--on .hxir__evt-x { visibility: visible; }
.hxir__evt--latest { opacity: 1; color: var(--color-text-on-dark); }
.hxir__evt-t {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--color-accent);
  margin-right: 0.5rem;
}

/* ══════════════════════════════════════════════════════════════
   Dashboard Tour (platform.html, hxtu- prefix)
   ══════════════════════════════════════════════════════════════ */
.hxtu {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: 1.5rem;
  margin-top: 2.5rem;
  text-align: left;
  background: rgba(5, 14, 31, 0.96);
  border: 1px solid var(--color-divider-dark);
  border-radius: 16px;
  padding: 1.25rem;
}
.hxtu__nav {
  display: flex; flex-direction: column; gap: 2px;
  border-right: 1px solid var(--color-divider-dark);
  padding-right: 1.25rem;
}
.hxtu__group {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--color-text-on-dark-muted);
  opacity: 0.85;
  margin: 0.9rem 0 0.35rem 0.6rem;
}
.hxtu__nav .hxtu__group:first-child { margin-top: 0.2rem; }
.hxtu__item {
  display: flex; align-items: center; gap: 0.55rem;
  font: inherit; font-size: 0.8125rem;
  color: var(--color-text-on-dark-muted);
  background: none; border: none;
  padding: 0.45rem 0.6rem;
  border-radius: 8px;
  cursor: pointer;
  text-align: left;
  transition: background 0.15s, color 0.15s;
}
.hxtu__item:hover { background: rgba(255, 255, 255, 0.05); color: var(--color-text-on-dark); }
.hxtu__item[aria-pressed='true'] {
  background: rgba(245, 158, 11, 0.13);
  color: #fff;
}
.hxtu__item[aria-pressed='true'] svg { color: var(--color-accent); }
.hxtu__item:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 1px; }
.hxtu__view { min-width: 0; }
.hxtu__chrome {
  display: flex; align-items: center; gap: 0.4rem;
  padding: 0.5rem 0.75rem;
  background: #050E1F;
  border: 1px solid rgba(148, 163, 184, 0.15);
  border-bottom: none;
  border-radius: 10px 10px 0 0;
}
.hxtu__dot { width: 9px; height: 9px; border-radius: 50%; opacity: 0.8; }
.hxtu__dot--r { background: #F87171; }
.hxtu__dot--y { background: #FBBF24; }
.hxtu__dot--g { background: #34D399; }
.hxtu__url {
  flex: 1;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--color-text-on-dark-muted);
  margin-left: 0.5rem;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.hxtu__demo-chip {
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  text-transform: uppercase; letter-spacing: 0.07em;
  color: var(--color-accent);
  border: 1px solid rgba(245, 158, 11, 0.45);
  border-radius: 999px;
  padding: 0.1rem 0.5rem;
  white-space: nowrap;
}
.hxtu__imgwrap {
  background: #050E1F;
  border: 1px solid rgba(148, 163, 184, 0.15);
  border-radius: 0 0 10px 10px;
  overflow: hidden;
  min-height: 200px;
}
.hxtu__img {
  display: block; width: 100%; height: auto;
  opacity: 0; transform: translateY(5px);
  transition: opacity 0.35s ease, transform 0.35s ease;
}
.hxtu__img--in { opacity: 1; transform: none; }
.hxtu__title {
  font-family: var(--font-heading);
  font-size: 1.0625rem;
  color: #fff;
  margin: 1rem 0 0.35rem;
}
.hxtu__desc { font-size: 0.875rem; color: var(--color-text-on-dark-muted); margin: 0 0 0.75rem; }
.hxtu__notice { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.45rem; }
.hxtu__notice li {
  display: flex; gap: 0.5rem; align-items: flex-start;
  font-size: 0.8125rem; line-height: 1.5;
  color: var(--color-text-on-dark);
}
.hxtu__notice svg { flex: none; color: var(--color-accent); margin-top: 3px; }

/* ══════════════════════════════════════════════════════════════
   AI Assistant demo (platform.html, hxai- prefix)
   ══════════════════════════════════════════════════════════════ */
.hxai-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 400px;
  gap: 3rem;
  align-items: center;
  margin-top: 2.5rem;
  text-align: left;
}
.hxai-points { list-style: none; margin: 1.5rem 0 0; padding: 0; display: grid; gap: 1rem; }
.hxai-points li {
  display: flex; gap: 0.75rem; align-items: flex-start;
  font-size: 0.9375rem; line-height: 1.6;
  color: var(--color-text-on-dark-muted);
}
.hxai-points li strong { color: #fff; font-weight: 600; }
.hxai-points svg { flex: none; color: var(--color-accent); margin-top: 3px; }

.hxai__phone {
  width: min(380px, 100%);
  margin: 0 auto;
  height: 560px;
  display: flex; flex-direction: column;
  background: #050E1F;
  border: 1px solid var(--color-divider-dark);
  border-radius: 28px;
  padding: 1rem;
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.45);
}
.hxai__appbar {
  flex: none;
  display: flex; align-items: center; gap: 0.5rem;
  padding: 0.35rem 0.25rem 0.75rem;
  border-bottom: 1px solid var(--color-divider-dark);
}
.hxai__app-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--color-accent); }
.hxai__app-name {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--color-text-on-dark);
}
.hxai__demo {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  text-transform: uppercase; letter-spacing: 0.07em;
  color: var(--color-accent);
  border: 1px solid rgba(245, 158, 11, 0.45);
  border-radius: 999px;
  padding: 0.1rem 0.5rem;
}
.hxai__msgs {
  flex: 1;
  overflow-y: auto;
  display: flex; flex-direction: column; gap: 0.6rem;
  padding: 0.9rem 0.25rem;
}
.hxai__bubble {
  max-width: 88%;
  padding: 0.6rem 0.8rem;
  border-radius: 14px;
  font-size: 0.8125rem; line-height: 1.55;
}
.hxai__bubble--bot {
  align-self: flex-start;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(148, 163, 184, 0.12);
  border-top-left-radius: 4px;
  color: var(--color-text-on-dark);
}
.hxai__bubble--user {
  align-self: flex-end;
  background: rgba(245, 158, 11, 0.16);
  border: 1px solid rgba(245, 158, 11, 0.3);
  border-bottom-right-radius: 4px;
  color: #fff;
}
.hxai__typing { display: inline-flex; gap: 4px; align-items: center; }
.hxai__typing i {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--color-text-on-dark-muted);
  animation: hxai-blink 1s ease-in-out infinite;
}
.hxai__typing i:nth-child(2) { animation-delay: 0.18s; }
.hxai__typing i:nth-child(3) { animation-delay: 0.36s; }
@keyframes hxai-blink { 0%, 100% { opacity: 0.25; } 50% { opacity: 1; } }
.hxai__chips {
  flex: none;
  display: flex; gap: 0.4rem;
  overflow-x: auto;
  padding: 0.5rem 0;
  scrollbar-width: thin;
}
.hxai__chip {
  flex: none;
  font: inherit; font-size: 0.75rem;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  border: 1px solid var(--color-divider-dark);
  background: rgba(255, 255, 255, 0.04);
  color: var(--color-text-on-dark-muted);
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s;
}
.hxai__chip:hover:not([aria-disabled='true']) { border-color: var(--color-accent); color: var(--color-text-on-dark); }
.hxai__chip[aria-disabled='true'] { opacity: 0.45; cursor: default; }
.hxai__chip:focus-visible,
.hxpb__row input[type='range']:focus-visible,
.hxai__msgs:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }
.hxai__msgs:focus-visible { outline-offset: -2px; }
.hxai__mic:focus-visible { outline: 2px solid #F7FAFC; outline-offset: 2px; }
.hxai__mic[aria-disabled='true'] { opacity: 0.65; cursor: default; }
.hxai__input {
  flex: none;
  display: flex; align-items: center; gap: 0.6rem;
  border: 1px solid var(--color-divider-dark);
  border-radius: 999px;
  padding: 0.4rem 0.4rem 0.4rem 1rem;
  background: rgba(255, 255, 255, 0.04);
}
.hxai__placeholder { flex: 1; font-size: 0.8125rem; color: var(--color-text-on-dark-muted); opacity: 0.7; }
.hxai__mic {
  position: relative;
  flex: none;
  width: 38px; height: 38px;
  border-radius: 50%;
  border: none;
  background: var(--color-accent);
  color: #0A2540;
  display: inline-flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: background 0.2s;
}
.hxai__mic:hover { background: var(--color-accent-hover); }
.hxai__wave {
  position: absolute; inset: 0;
  display: none;
  align-items: center; justify-content: center;
  gap: 2.5px;
}
.hxai__wave i {
  width: 3px; height: 8px;
  border-radius: 2px;
  background: #0A2540;
  animation: hxai-wave 0.9s ease-in-out infinite;
}
.hxai__wave i:nth-child(2) { animation-delay: 0.12s; }
.hxai__wave i:nth-child(3) { animation-delay: 0.24s; }
.hxai__wave i:nth-child(4) { animation-delay: 0.36s; }
.hxai__wave i:nth-child(5) { animation-delay: 0.48s; }
@keyframes hxai-wave { 0%, 100% { height: 6px; } 50% { height: 17px; } }
.hxai__mic--listening svg { visibility: hidden; }
.hxai__mic--listening .hxai__wave { display: flex; }
.hxai__note {
  flex: none;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  color: var(--color-text-on-dark-muted);
  opacity: 0.7;
  padding-top: 0.55rem;
}
.hxai .visually-hidden,
.hxtu .visually-hidden {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ══════════════════════════════════════════════════════════════
   FPCC payback explorer (index.html case section, hxpb- prefix)
   ══════════════════════════════════════════════════════════════ */
/* position:relative lifts the widget above .hx-case__roi::before's
   decorative gradient overlay — without it the slider is unclickable */
.hxpb { position: relative; margin-top: 1.25rem; border-top: 1px solid rgba(148, 163, 184, 0.2); padding-top: 1rem; }
.hxpb__canvas { display: block; width: 100%; height: 120px; }
.hxpb__row { display: flex; align-items: center; gap: 0.75rem; margin-top: 0.5rem; }
.hxpb__row input[type='range'] { flex: 1; accent-color: var(--color-accent); cursor: pointer; }
.hxpb__year {
  flex: none;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-on-dark);
  min-width: 4rem; text-align: right;
}
.hxpb__read {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--color-text-on-dark-muted);
  margin-top: 0.35rem;
}
.hxpb__read b { color: var(--color-text-on-dark); font-weight: 600; }
.hxpb__cap {
  font-size: 0.6875rem;
  color: var(--color-text-on-dark-muted);
  opacity: 0.75;
  margin-top: 0.5rem;
}

#plant-twin .hxi-triage__note,
#incident-replay .hxi-triage__note { color: var(--color-text-tertiary); }

@media (max-width: 1024px) {
  .hxpt__body { grid-template-columns: 1fr; }
  .hxir { grid-template-columns: 1fr; }
  .hxir__canvas { height: 250px; }
  .hxtu { grid-template-columns: 1fr; }
  .hxtu__nav {
    flex-direction: row; flex-wrap: wrap; gap: 0.35rem;
    border-right: none;
    border-bottom: 1px solid var(--color-divider-dark);
    padding: 0 0 1rem;
  }
  .hxtu__group { width: 100%; margin: 0.5rem 0 0.1rem 0.2rem; }
  .hxai-grid { grid-template-columns: 1fr; gap: 2rem; }
}
@media (max-width: 720px) {
  /* taller floor plan so 44px touch targets stay separated on phones */
  .hxpt__stage { aspect-ratio: 800 / 560; }
  .hxpt__node-tag { display: none; }
  .hxpt__node:hover .hxpt__node-tag,
  .hxpt__node:focus-visible .hxpt__node-tag,
  .hxpt__node[aria-pressed='true'] .hxpt__node-tag { display: block; }
  .hxpt__facts > div { grid-template-columns: 6rem 1fr; }
}

@media (max-width: 1024px) {
  .hxr { grid-template-columns: 1fr; }
  .hxr__canvas { height: 250px; }
}
@media (max-width: 720px) {
  .hxr__factor { grid-template-columns: 7rem 1fr 2rem; }
  .hxr__leg--thd { margin-left: 0; }
}

/* ══════════════════════════════════════════════════════════════
   "How the model works" walkthrough (platform.html, hxrs- prefix)
   ══════════════════════════════════════════════════════════════ */
.hxrs { margin-top: 2.5rem; text-align: left; }
.hxrs__nav {
  display: flex; flex-wrap: wrap; gap: 0.5rem;
  margin-bottom: 1rem;
}
.hxrs__navbtn {
  font: inherit; font-size: 0.8125rem;
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--color-divider-dark);
  background: rgba(255, 255, 255, 0.04);
  color: var(--color-text-on-dark-muted);
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}
.hxrs__navbtn:hover { border-color: var(--color-accent); color: var(--color-text-on-dark); }
.hxrs__navbtn[aria-pressed='true'] {
  border-color: var(--color-accent);
  background: rgba(245, 158, 11, 0.14);
  color: #fff;
}
.hxrs__navbtn:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }
.hxrs__toggle {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px;
  margin-left: auto;
  border-radius: 50%;
  border: 1px solid var(--color-divider-dark);
  background: rgba(255, 255, 255, 0.04);
  color: var(--color-text-on-dark-muted);
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s;
}
.hxrs__toggle:hover { border-color: var(--color-accent); color: var(--color-text-on-dark); }
.hxrs__toggle:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }
.hxrs__stage {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 1.5rem;
  background: rgba(5, 14, 31, 0.72);
  border: 1px solid var(--color-divider-dark);
  border-radius: 16px;
  padding: 1.25rem;
}
.hxrs__canvas {
  display: block; width: 100%; height: 240px;
  border-radius: 10px;
  background: #050E1F;
  border: 1px solid rgba(148, 163, 184, 0.15);
}
.hxrs__panel { display: flex; flex-direction: column; }
.hxrs__panel .hxi-chip {
  align-self: flex-start;
  margin-bottom: 0.75rem;
}
.hxrs__title {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  color: #fff;
  margin: 0 0 0.6rem;
}
.hxrs__body {
  font-size: 0.9375rem; line-height: 1.65;
  color: var(--color-text-on-dark-muted);
  margin: 0;
}
.hxrs__stat {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--color-accent);
  border-left: 2px solid var(--color-accent);
  padding-left: 0.75rem;
  margin: 1rem 0 0;
}
.hxrs__cta {
  display: none;
  align-items: center; gap: 0.4rem;
  margin-top: 1.1rem;
  font-size: 0.8125rem; font-weight: 600;
  color: var(--color-accent);
  text-decoration: none;
}
.hxrs__cta:hover { color: var(--color-accent-hover); }
.hxrs .visually-hidden {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

@media (max-width: 1024px) {
  .hxrs__stage { grid-template-columns: 1fr; }
}

/* ── Reduced motion ──────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .hxi-pipe__stage::before { animation: none; display: none; }
  .hxi-pipe__stage:hover { transform: none; }
  .hxr__feed-dot { animation: none; }
  .hxr__factor-bar { transition: none; }
  .hxpt__sweep { animation: none; display: none; }
  /* the static halo box-shadow stays as the non-motion critical cue */
  .hxpt__node--crit .hxpt__node-dot::after { animation: none; display: none; }
  .hxir__evt { transition: none; }
  .hxtu__img { transition: none; opacity: 1; transform: none; }
  .hxai__typing i { animation: none; opacity: 0.7; }
  .hxai__wave i { animation: none; }
}
@media (prefers-reduced-motion: reduce) {
  .hxrs__navbtn { transition: none; }
}