/* Vertexi5 demo design system — Proof Brass (Bone / Ink / Brass, IBM Plex).
 * Tokens follow templates/src/DESIGN-SYSTEM.md. Fonts are self-hosted
 * (IBM Plex, SIL OFL 1.1, see assets/fonts/OFL-LICENSE.txt). No CDNs. */

@font-face {
  font-family: "IBM Plex Sans";
  src: url("assets/fonts/IBMPlexSans-var.woff2") format("woff2");
  font-weight: 100 700;
  font-stretch: 85% 100%;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "IBM Plex Mono";
  src: url("assets/fonts/IBMPlexMono-Regular.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "IBM Plex Mono";
  src: url("assets/fonts/IBMPlexMono-Medium.woff2") format("woff2");
  font-weight: 500 600;
  font-display: swap;
}

:root {
  /* brand */
  --ink: #0B0E14;
  --char: #1A1F28;
  --bone: #F3EEE4;
  --paper: #FBF8F2;
  --brass: #C4A35A;
  --brass-soft: #D4B87A;
  --brass-deep: #7E6224;
  --steel: #8B909A;
  --silver: #B8BEC8;
  --hair: #2A303A;
  /* neutrals on bone */
  --text: #0B0E14;
  --muted: #545A65;
  --line: #DCD4C4;
  --line-soft: #E9E3D7;
  --zebra: #F6F2EA;
  /* status */
  --ok: #2E7A4C;   --ok-bg: #E2F0E6;
  --warn: #9A6200; --warn-bg: #FBEED2;
  --alarm: #B3261E; --alarm-bg: #F8E0DD;
  --info: #3D5A86; --info-bg: #E2E8F1;
  /* type */
  --font-sans: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  /* spacing */
  --s1: 4px; --s2: 8px; --s3: 12px; --s4: 16px; --s5: 24px; --s6: 32px; --s7: 48px;
  /* radius + shadow */
  --r-sm: 6px; --r: 10px; --r-lg: 14px;
  --shadow-1: 0 1px 2px rgba(11, 14, 20, 0.06), 0 2px 8px rgba(11, 14, 20, 0.05);
  --shadow-2: 0 2px 4px rgba(11, 14, 20, 0.06), 0 10px 28px rgba(11, 14, 20, 0.08);
  --max: 1240px;
  --tap: 44px;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.55;
  color: var(--text);
  background: var(--bone);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; }
a { color: var(--ink); text-decoration-color: var(--brass); text-underline-offset: 3px; }
a:hover { color: var(--brass-deep); }
:focus-visible { outline: 3px solid var(--brass); outline-offset: 2px; }
code, .mono { font-family: var(--font-mono); font-size: 0.92em; }
h1, h2, h3 { font-weight: 600; letter-spacing: -0.02em; line-height: 1.2; margin: 0; }
h1 { font-size: clamp(1.7rem, 3.4vw, 2.35rem); letter-spacing: -0.03em; }
h2 { font-size: 1.2rem; }
h3 { font-size: 1rem; }
p { margin: 0 0 var(--s3); }
.muted { color: var(--muted); }
.small { font-size: 0.875rem; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---------- DEMO banner (sticky, in flow: never covers content) ---------- */
.banner {
  position: sticky;
  top: 0;
  z-index: 60;
  background: var(--brass);
  color: var(--ink);
  text-align: center;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.875rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 8px var(--s4);
  border-bottom: 2px solid var(--ink);
}

/* ---------- app bar (two rows: brand identity, then nav) ---------- */
.appbar { background: var(--ink); color: var(--bone); border-bottom: 1px solid var(--hair); }
.appbar-brand { background: var(--ink); }
.appbar-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--s5);
  display: flex;
  align-items: center;
  min-height: 56px;
}
.brand { display: flex; align-items: center; gap: var(--s3); text-decoration: none; color: var(--bone); flex: none; }
.brand img { height: 20px; width: auto; display: block; }
.brand-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--steel);
  border-left: 1px solid var(--hair);
  padding-left: var(--s3);
}
.appbar-nav {
  background: var(--char);
  border-top: 1px solid var(--hair);
  max-width: 100%;
}
.demo-nav {
  width: 100%;
  max-width: var(--max);
  min-width: 0;
  margin: 0 auto;
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  gap: var(--s2);
  padding: var(--s2) var(--s5);
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior-x: contain;
  scroll-padding-inline: var(--s4);
  scrollbar-width: thin;
  scrollbar-color: var(--steel) transparent;
}
.demo-nav::-webkit-scrollbar { height: 4px; }
.demo-nav::-webkit-scrollbar-thumb { background: var(--steel); border-radius: 4px; }
.demo-nav a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  white-space: nowrap;
  min-height: var(--tap);
  padding: 0 14px;
  color: var(--silver);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  line-height: 1.2;
  background: transparent;
  border: 1px solid var(--hair);
  border-radius: 999px;
}
.demo-nav a:hover {
  color: var(--bone);
  background: rgba(243, 238, 228, 0.08);
  border-color: var(--steel);
}
.demo-nav a:focus-visible {
  outline: 3px solid var(--brass);
  outline-offset: 2px;
  color: var(--bone);
}
.demo-nav a[aria-current="page"] {
  color: var(--ink);
  background: var(--brass);
  border-color: var(--brass);
  font-weight: 600;
}
.demo-nav a[aria-current="page"]:hover {
  color: var(--ink);
  background: var(--brass-soft);
  border-color: var(--brass-soft);
}

/* ---------- page shell ---------- */
.page { max-width: var(--max); margin: 0 auto; padding: var(--s5) var(--s5) var(--s7); }
.hero { display: flex; justify-content: space-between; align-items: flex-end; gap: var(--s5); flex-wrap: wrap; margin-bottom: var(--s5); }
.hero-text { max-width: 760px; min-width: 0; }
.kicker {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brass-deep);
  margin: 0 0 var(--s2);
}
.lede { color: var(--muted); font-size: 1.05rem; margin: var(--s2) 0 0; max-width: 68ch; }
.section { margin-top: var(--s6); }
.section-head { display: flex; justify-content: space-between; align-items: baseline; gap: var(--s3); flex-wrap: wrap; margin-bottom: var(--s3); }
.section-head p { margin: 0; color: var(--muted); font-size: 0.9rem; max-width: 70ch; }
.grid { display: grid; gap: var(--s4); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid > * { min-width: 0; }

/* ---------- cards ---------- */
.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--r);
  box-shadow: var(--shadow-1);
  padding: var(--s4) var(--s5);
  min-width: 0;
}
.card-head { display: flex; justify-content: space-between; align-items: center; gap: var(--s3); margin-bottom: var(--s3); flex-wrap: wrap; }
.card-head h2, .card-head h3 { margin: 0; }
.card-sub { color: var(--muted); font-size: 0.875rem; }

/* ---------- KPI cards ---------- */
.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: var(--s4); margin-bottom: var(--s5); }
.kpi {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: var(--s4);
  box-shadow: var(--shadow-1);
  border-top: 3px solid var(--steel);
  min-width: 0;
}
.kpi.ok { border-top-color: var(--ok); }
.kpi.warn { border-top-color: var(--warn); }
.kpi.alarm { border-top-color: var(--alarm); }
.kpi.info { border-top-color: var(--info); }
.kpi.brass { border-top-color: var(--brass); }
.kpi-label { font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.kpi-value { font-size: 2rem; font-weight: 600; letter-spacing: -0.02em; line-height: 1.15; margin-top: var(--s1); font-variant-numeric: tabular-nums; }
.kpi-value small { font-size: 0.95rem; font-weight: 500; color: var(--muted); margin-left: 4px; }
.kpi-note { font-size: 0.85rem; color: var(--muted); margin-top: 2px; }

/* ---------- status pills + legend ---------- */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--line-soft);
  color: var(--muted);
  white-space: nowrap;
}
.pill::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.pill.ok { background: var(--ok-bg); color: var(--ok); }
.pill.warn { background: var(--warn-bg); color: var(--warn); }
.pill.alarm { background: var(--alarm-bg); color: var(--alarm); }
.pill.info, .pill.data_gap { background: var(--info-bg); color: var(--info); }
.pill.plain::before { display: none; }
.legend { display: flex; flex-wrap: wrap; gap: var(--s2) var(--s4); align-items: center; font-size: 0.875rem; color: var(--muted); }
.legend-item { display: inline-flex; align-items: center; gap: 6px; }
.swatch { width: 14px; height: 10px; border-radius: 2px; display: inline-block; }
.swatch.line { height: 3px; border-radius: 2px; }
.swatch.dashed { height: 0; border-top: 2px dashed currentColor; background: none !important; }
.swatch.box { background: none !important; border: 2px solid currentColor; height: 12px; }
.swatch.boxdash { background: none !important; border: 2px dashed currentColor; height: 12px; }
.sw-ok { background: var(--ok); color: var(--ok); }
.sw-warn { background: var(--warn); color: var(--warn); }
.sw-alarm { background: var(--alarm); color: var(--alarm); }
.sw-info { background: var(--info); color: var(--info); }
.sw-brass { background: var(--brass); color: var(--brass); }
.sw-ink { background: var(--ink); color: var(--ink); }
.sw-steel { background: var(--steel); color: var(--steel); }

/* ---------- honesty labels ---------- */
.caveat {
  display: flex;
  gap: var(--s3);
  align-items: flex-start;
  border: 1px solid var(--alarm);
  border-left-width: 6px;
  background: var(--alarm-bg);
  border-radius: var(--r);
  padding: var(--s3) var(--s4);
  margin-bottom: var(--s5);
}
.caveat strong { display: block; color: var(--alarm); font-size: 1rem; letter-spacing: 0.02em; text-transform: uppercase; }
.caveat p { margin: 4px 0 0; font-size: 0.95rem; }
.caveat.speculative { border-color: var(--warn); background: var(--warn-bg); }
.caveat.speculative strong { color: var(--warn); }
.caveat.sample { border-color: var(--info); background: var(--info-bg); }
.caveat.sample strong { color: var(--info); }
.caveat-icon { flex: none; width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center; font-weight: 700; color: var(--paper); background: var(--alarm); }
.caveat.speculative .caveat-icon { background: var(--warn); }
.caveat.sample .caveat-icon { background: var(--info); }
.tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: var(--ink);
  color: var(--brass-soft);
  padding: 3px 8px;
  border-radius: 4px;
  vertical-align: middle;
}
.tag.light { background: var(--info-bg); color: var(--info); }
.tag.spec { background: var(--warn-bg); color: var(--warn); }

/* ---------- controls ---------- */
button, .btn {
  font: inherit;
  font-weight: 500;
  font-size: 0.95rem;
  min-height: var(--tap);
  padding: 0 var(--s4);
  border-radius: var(--r-sm);
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--bone);
  cursor: pointer;
  touch-action: manipulation;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}
button:hover { background: var(--char); }
button.ghost { background: transparent; color: var(--ink); border-color: var(--line); }
button.ghost:hover { border-color: var(--ink); }
button.brass { background: var(--brass); border-color: var(--brass); color: var(--ink); }
button.brass:hover { background: var(--brass-soft); }
button.danger { background: transparent; color: var(--alarm); border-color: var(--alarm); }
button[disabled] { opacity: 0.5; cursor: not-allowed; }
select, input[type="text"] {
  font: inherit;
  font-size: 16px;
  min-height: var(--tap);
  padding: 0 var(--s3);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: #fff;
  color: var(--ink);
  max-width: 100%;
}
.field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.field-label { font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }

/* range: big touch thumbs */
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: var(--tap);
  background: transparent;
  touch-action: pan-y;
  cursor: pointer;
  margin: 0;
}
input[type="range"]::-webkit-slider-runnable-track { height: 6px; border-radius: 3px; background: linear-gradient(90deg, var(--brass) var(--fill, 50%), var(--line) var(--fill, 50%)); }
input[type="range"]::-moz-range-track { height: 6px; border-radius: 3px; background: var(--line); }
input[type="range"]::-moz-range-progress { height: 6px; border-radius: 3px; background: var(--brass); }
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 28px; height: 28px; margin-top: -11px;
  border-radius: 50%;
  background: var(--paper);
  border: 3px solid var(--ink);
  box-shadow: 0 1px 4px rgba(11, 14, 20, 0.25);
}
input[type="range"]::-moz-range-thumb { width: 24px; height: 24px; border-radius: 50%; background: var(--paper); border: 3px solid var(--ink); }
.slider { margin-bottom: var(--s3); }
.slider-top { display: flex; justify-content: space-between; align-items: baseline; gap: var(--s2); }
.slider-top label { font-weight: 500; }
.slider-top output { font-family: var(--font-mono); font-weight: 600; background: var(--ink); color: var(--brass-soft); padding: 2px 8px; border-radius: 4px; font-size: 0.9rem; white-space: nowrap; }
.slider-scale { display: flex; justify-content: space-between; font-family: var(--font-mono); font-size: 0.75rem; color: var(--muted); margin-top: -6px; }
.switch { display: inline-flex; align-items: center; gap: var(--s2); min-height: var(--tap); cursor: pointer; }
.switch input { width: 22px; height: 22px; accent-color: var(--ink); margin: 0; }

/* ---------- tables ---------- */
.table-wrap { overflow: auto; border: 1px solid var(--line); border-radius: var(--r); background: var(--paper); -webkit-overflow-scrolling: touch; max-width: 100%; }
.table-wrap.tall { max-height: 520px; }
table { width: 100%; border-collapse: separate; border-spacing: 0; font-size: 0.95rem; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line-soft); vertical-align: middle; }
thead th {
  position: sticky;
  top: 0;
  z-index: 2;
  background: var(--char);
  color: var(--bone);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
}
tbody tr:nth-child(even) td { background: var(--zebra); }
tbody tr:hover td { background: #EFE8DA; }
tbody tr.is-selected td { background: #F1E6C9; }
tbody tr:last-child td { border-bottom: 0; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; font-family: var(--font-mono); }
td.rule { color: var(--muted); font-size: 0.85rem; min-width: 16rem; }
.empty-state, .loading-state {
  text-align: center;
  padding: var(--s6) var(--s4);
  color: var(--muted);
}
.empty-state strong { display: block; color: var(--ink); margin-bottom: 4px; }
.spinner { width: 22px; height: 22px; border: 3px solid var(--line); border-top-color: var(--brass); border-radius: 50%; display: inline-block; animation: spin 0.9s linear infinite; vertical-align: middle; margin-right: 8px; }
@keyframes spin { to { transform: rotate(360deg); } }
.skeleton { background: linear-gradient(90deg, var(--line-soft), #F7F3EC, var(--line-soft)); background-size: 200% 100%; animation: shimmer 1.4s ease infinite; border-radius: var(--r); min-height: 220px; }
@keyframes shimmer { to { background-position: -200% 0; } }
@media (prefers-reduced-motion: reduce) { .spinner, .skeleton { animation: none; } }

/* ---------- charts ---------- */
.chart-box { position: relative; width: 100%; min-width: 0; }
.chart-box svg { display: block; width: 100%; height: auto; touch-action: pan-y; overflow: visible; }
.chart-box .axis text { font-family: var(--font-mono); font-size: 11px; fill: var(--muted); }
.chart-box .axis-label { font-family: var(--font-mono); font-size: 11px; fill: var(--muted); letter-spacing: 0.04em; }
.chart-box .grid-line { stroke: var(--line-soft); stroke-width: 1; }
.chart-box .axis-line { stroke: var(--line); stroke-width: 1; }
.chart-tip {
  position: absolute;
  pointer-events: none;
  background: var(--ink);
  color: var(--bone);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.45;
  padding: 6px 9px;
  border-radius: 6px;
  box-shadow: var(--shadow-2);
  white-space: nowrap;
  z-index: 5;
  transform: translate(-50%, -100%);
  opacity: 0;
  transition: opacity 0.1s;
}
.chart-tip.show { opacity: 1; }
.chart-tip b { color: var(--brass-soft); font-weight: 600; }

/* ---------- footer ---------- */
.site-footer { background: var(--ink); color: var(--steel); font-size: 0.875rem; }
.site-footer .inner { max-width: var(--max); margin: 0 auto; padding: var(--s5); display: flex; justify-content: space-between; gap: var(--s4); flex-wrap: wrap; align-items: center; }
.site-footer img { height: 16px; width: auto; opacity: 0.85; }

/* =================== page: home / integrity =================== */
.asset-card .channel { padding-top: var(--s3); margin-top: var(--s3); border-top: 1px solid var(--line-soft); }
.asset-card .channel:first-of-type { border-top: 0; margin-top: 0; padding-top: 0; }
.channel-head { display: flex; justify-content: space-between; align-items: center; gap: var(--s2); flex-wrap: wrap; }
.channel-head span:first-child { font-weight: 600; }
.channel-meta { display: flex; justify-content: space-between; gap: var(--s2); flex-wrap: wrap; font-size: 0.875rem; color: var(--muted); margin: 2px 0 var(--s2); }
.channel-meta .mono { color: var(--ink); font-weight: 500; }
.cause-pill { font-family: var(--font-mono); font-size: 0.75rem; font-weight: 600; letter-spacing: 0.04em; padding: 3px 8px; border-radius: 4px; white-space: nowrap; background: var(--line-soft); color: var(--muted); }
.cause-pill.drift { background: var(--warn-bg); color: var(--warn); }
.cause-pill.step { background: var(--alarm-bg); color: var(--alarm); }
.cause-pill.dropout, .cause-pill.flatline { background: var(--info-bg); color: var(--info); }
.detail-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: var(--s4); align-items: start; }
.evidence { margin: var(--s2) 0; padding-left: 1.2rem; }
.evidence li { margin-bottom: 4px; }
.rules-note { font-size: 0.85rem; color: var(--muted); border-top: 1px dashed var(--line); padding-top: var(--s2); margin-top: var(--s3); }

/* work order: document card with DRAFT watermark */
.wo-doc {
  position: relative;
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 4px;
  box-shadow: var(--shadow-2);
  padding: var(--s5);
  isolation: isolate;
}
.wo-doc::before {
  content: attr(data-watermark);
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(3rem, 12vw, 6.5rem);
  letter-spacing: 0.12em;
  color: rgba(179, 38, 30, 0.08);
  transform: rotate(-22deg);
  pointer-events: none;
  z-index: -1;
  white-space: nowrap;
}
.wo-doc[data-state="approved"]::before { color: rgba(46, 122, 76, 0.09); }
.wo-doc-head { display: flex; justify-content: space-between; gap: var(--s3); align-items: flex-start; border-bottom: 2px solid var(--ink); padding-bottom: var(--s3); margin-bottom: var(--s3); flex-wrap: wrap; }
.wo-doc-head .doc-type { font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); }
.wo-doc-head h3 { font-family: var(--font-mono); font-size: 1.05rem; margin-top: 2px; word-break: break-all; }
.wo-fields { display: grid; grid-template-columns: 10rem minmax(0, 1fr); border: 1px solid var(--line); border-radius: 4px; margin: 0 0 var(--s4); }
.wo-fields dt, .wo-fields dd { margin: 0; padding: 8px 10px; border-bottom: 1px solid var(--line-soft); }
.wo-fields dt { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); background: var(--zebra); }
.wo-fields dd ul { margin: 0; padding-left: 1.1rem; }
.wo-fields .placeholder { font-style: italic; color: var(--muted); }
.stamp { display: inline-block; font-family: var(--font-mono); font-weight: 600; font-size: 0.8rem; letter-spacing: 0.08em; text-transform: uppercase; border: 2px solid var(--alarm); color: var(--alarm); padding: 4px 10px; border-radius: 4px; transform: rotate(-2deg); background: #fff; }
.stamp.approved { border-color: var(--ok); color: var(--ok); }
.stamp.rejected { border-color: var(--muted); color: var(--muted); }
.wo-actions { display: flex; gap: var(--s2); flex-wrap: wrap; }
.wo-sign { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s4); margin-top: var(--s4); font-size: 0.8rem; color: var(--muted); }
.wo-sign div { border-top: 1px solid var(--ink); padding-top: 4px; }

/* =================== page: weld =================== */
.viewer { display: grid; grid-template-columns: 220px minmax(0, 1fr) 300px; gap: var(--s4); align-items: start; }
.weld-list { display: flex; flex-direction: column; gap: 6px; max-height: 560px; overflow: auto; padding-right: 4px; }
.weld-list button {
  justify-content: space-between;
  width: 100%;
  background: var(--paper);
  color: var(--ink);
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: 0 var(--s3);
  flex: none;
}
.weld-list button[aria-pressed="true"] { border-color: var(--ink); box-shadow: inset 4px 0 0 var(--brass); background: #fff; }
.weld-list .pill { font-size: 0.65rem; padding: 2px 7px; }
.weld-stage { background: var(--ink); border-radius: var(--r); padding: var(--s3); }
.weld-img { position: relative; width: 100%; line-height: 0; border-radius: 4px; overflow: hidden; }
.weld-img img { width: 100%; height: auto; display: block; }
.weld-img svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.weld-stage-meta { display: flex; justify-content: space-between; gap: var(--s2); flex-wrap: wrap; color: var(--silver); font-family: var(--font-mono); font-size: 0.8rem; margin-top: var(--s2); }
.weld-nav { display: flex; gap: var(--s2); margin-top: var(--s3); flex-wrap: wrap; }
.ind-cards { display: flex; flex-direction: column; gap: var(--s2); }
.ind-card { border: 1px solid var(--line); border-left: 4px solid var(--brass); border-radius: var(--r-sm); background: #fff; padding: var(--s2) var(--s3); cursor: pointer; text-align: left; color: var(--ink); width: 100%; display: block; min-height: var(--tap); font-weight: 400; }
.ind-card:hover, .ind-card.active { background: #FFF8E8; border-color: var(--brass); }
.ind-card.below { border-left-color: var(--line); opacity: 0.7; }
.ind-card .row { display: flex; justify-content: space-between; gap: var(--s2); align-items: baseline; }
.ind-card .score { font-family: var(--font-mono); font-weight: 600; }
.scorebar { height: 5px; background: var(--line-soft); border-radius: 3px; margin-top: 6px; overflow: hidden; }
.scorebar span { display: block; height: 100%; background: var(--brass); }
.controls-bar { display: flex; flex-wrap: wrap; gap: var(--s3) var(--s6); align-items: center; }
.controls-bar .slider { min-width: 260px; flex: 1 1 260px; margin: 0; }

/* =================== page: ask =================== */
.ask-layout { display: grid; grid-template-columns: minmax(0, 1.7fr) minmax(0, 1fr); gap: var(--s4); align-items: start; }
.chat { display: flex; flex-direction: column; padding: 0; overflow: hidden; }
.chat-head { padding: var(--s3) var(--s5); border-bottom: 1px solid var(--line); display: flex; align-items: center; gap: var(--s3); flex-wrap: wrap; background: var(--paper); }
.chat-avatar { width: 36px; height: 36px; border-radius: 8px; background: var(--ink); display: grid; place-items: center; flex: none; }
.chat-avatar img { width: 18px; height: auto; }
.chat-log { padding: var(--s4) var(--s5); display: flex; flex-direction: column; gap: var(--s4); min-height: 360px; max-height: 640px; overflow-y: auto; background: #FDFBF7; }
.msg { max-width: 92%; min-width: 0; }
.msg.user { align-self: flex-end; background: var(--ink); color: var(--bone); padding: var(--s2) var(--s4); border-radius: 14px 14px 4px 14px; }
.msg.assistant { align-self: flex-start; background: #fff; border: 1px solid var(--line); padding: var(--s3) var(--s4); border-radius: 14px 14px 14px 4px; box-shadow: var(--shadow-1); }
.msg.assistant.idk { background: var(--zebra); }
.msg-kind { margin-bottom: var(--s2); display: flex; gap: 6px; align-items: center; flex-wrap: wrap; font-size: 0.8rem; color: var(--muted); }
.msg-text p { margin: 0 0 var(--s2); overflow-wrap: anywhere; }
.msg-text p:last-child { margin-bottom: 0; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: var(--s3); }
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: var(--tap);
  padding: 4px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--paper);
  font-size: 0.8rem;
  text-decoration: none;
  color: var(--ink);
  max-width: 100%;
}
.chip b { font-family: var(--font-mono); font-weight: 600; color: var(--brass-deep); }
.chip span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.chip:hover { border-color: var(--brass); }
.typing { display: inline-flex; gap: 4px; }
.typing i { width: 7px; height: 7px; border-radius: 50%; background: var(--steel); animation: blink 1s infinite; }
.typing i:nth-child(2) { animation-delay: 0.15s; }
.typing i:nth-child(3) { animation-delay: 0.3s; }
@keyframes blink { 50% { opacity: 0.25; } }
.suggested { display: flex; gap: var(--s2); flex-wrap: wrap; padding: var(--s3) var(--s5) 0; border-top: 1px solid var(--line); }
.suggested button { background: var(--paper); color: var(--ink); border: 1px solid var(--line); border-radius: 999px; font-size: 0.875rem; text-align: left; height: auto; padding: 8px 14px; line-height: 1.3; }
.suggested button:hover { border-color: var(--brass); background: #fff; }
.composer { display: flex; gap: var(--s2); padding: var(--s3) var(--s5) var(--s4); }
.composer input { flex: 1; min-width: 0; }
.manual-panel details summary { cursor: pointer; min-height: var(--tap); display: flex; align-items: center; font-weight: 600; list-style: none; }
.manual-panel details summary::-webkit-details-marker { display: none; }
.manual-panel details summary::after { content: "▾"; margin-left: auto; color: var(--muted); }
.manual-panel details[open] summary::after { content: "▴"; }
.manual-list { max-height: 640px; overflow: auto; }
.manual-sec { border-top: 1px solid var(--line-soft); padding: var(--s3) 0; font-size: 0.95rem; scroll-margin-top: 60px; }
.manual-sec h3 { font-size: 0.95rem; margin-bottom: 4px; }
.manual-sec h3 .mono { color: var(--brass-deep); margin-right: 6px; }
.manual-sec p { margin: 0; color: #2A2F38; }
.manual-sec.flash, .manual-sec:target { background: #FFF5DC; box-shadow: -8px 0 0 #FFF5DC, 8px 0 0 #FFF5DC; }

/* =================== page: chlorine =================== */
.sim-layout { display: grid; grid-template-columns: minmax(0, 340px) minmax(0, 1fr); gap: var(--s4); align-items: start; }
.formula { font-family: var(--font-mono); font-size: 0.82rem; background: var(--zebra); border: 1px solid var(--line-soft); border-radius: 6px; padding: 8px 10px; margin: 0 0 var(--s2); overflow-x: auto; white-space: nowrap; }
.assumptions { padding-left: 1.1rem; margin: 0; font-size: 0.92rem; }
.assumptions li { margin-bottom: 6px; }

/* =================== responsive =================== */
@media (max-width: 1100px) {
  .viewer { grid-template-columns: 200px minmax(0, 1fr); }
  .viewer .ind-panel { grid-column: 1 / -1; }
}
@media (max-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .detail-grid, .ask-layout { grid-template-columns: minmax(0, 1fr); }
  .sim-layout { grid-template-columns: minmax(0, 1fr); }
  .chat-log { max-height: none; }
  .manual-list { max-height: 420px; }
}
@media (max-width: 860px) {
  .appbar-inner, .demo-nav { padding-left: var(--s4); padding-right: var(--s4); }
  .viewer { grid-template-columns: minmax(0, 1fr); }
  .weld-list { flex-direction: row; max-height: none; overflow-x: auto; padding-bottom: 6px; }
  .weld-list button { width: auto; min-width: 150px; }
}
@media (max-width: 640px) {
  .page { padding: var(--s4) var(--s4) var(--s6); }
  .card { padding: var(--s4); }
  .grid-3, .grid-2 { grid-template-columns: minmax(0, 1fr); }
  .kpis { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--s3); }
  .kpi { padding: var(--s3); }
  .kpi-value { font-size: 1.55rem; }
  .hero { margin-bottom: var(--s4); }
  .hero .field, .hero select { width: 100%; }
  table { font-size: 1rem; }
  td.rule, th.rule { display: none; }
  .wo-fields { grid-template-columns: minmax(0, 1fr); }
  .wo-fields dt { border-bottom: 0; padding-bottom: 2px; }
  .wo-doc { padding: var(--s4); }
  .chat-log, .suggested, .composer, .chat-head { padding-left: var(--s4); padding-right: var(--s4); }
  .msg { max-width: 100%; }
  .controls-bar .slider { min-width: 0; }
  .banner { font-size: 0.8rem; letter-spacing: 0.1em; }
}
@media (max-width: 640px) {
  /* alert log: rows become cards on phones */
  .stack-table thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  .stack-table, .stack-table tbody, .stack-table tr, .stack-table td { display: block; width: 100%; }
  .stack-table tr { border-bottom: 1px solid var(--line); padding: 10px 12px; }
  .stack-table tbody tr:nth-child(even) td { background: transparent; }
  .stack-table tbody tr:nth-child(even) { background: var(--zebra); }
  .stack-table td { border: 0; padding: 3px 0; display: grid; grid-template-columns: 7.5rem minmax(0, 1fr); gap: 8px; align-items: center; text-align: left; }
  .stack-table td::before { content: attr(data-label); font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
  .stack-table td.num { font-family: var(--font-mono); text-align: left; }
  .stack-table td.action { display: block; padding-top: 8px; }
  .stack-table td.action::before, .stack-table td.empty-state::before, .stack-table td.loading-state::before { content: none; }
  .stack-table td.action button { width: 100%; }
  .stack-table td.empty-state, .stack-table td.loading-state { display: block; text-align: center; }
  .table-wrap.tall { max-height: 70vh; }
}
@media (max-width: 380px) {
  .kpis { grid-template-columns: minmax(0, 1fr); }
}

/* refinements */
td .pill.plain { white-space: normal; text-align: left; margin: 2px 0; }
td button { white-space: nowrap; }
@media (min-width: 641px) {
  .suggested { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .suggested button { justify-content: flex-start; }
}
@media (max-width: 640px) {
  .suggested { flex-wrap: nowrap; overflow-x: auto; padding-bottom: 8px; -webkit-overflow-scrolling: touch; }
  .suggested button { flex: none; max-width: 78vw; white-space: normal; }
}
@media (max-width: 640px) {
  .weld-pan { overflow-x: auto; -webkit-overflow-scrolling: touch; touch-action: pan-x pan-y; border-radius: var(--radius-sm, 6px); }
  .weld-pan .weld-img { width: 760px; max-width: none; }
  .weld-pan::after { content: "Swipe sideways to pan the image"; display: block; position: sticky; left: 0; width: max-content; font-family: var(--font-mono); font-size: 0.72rem; color: #B8BEC8; padding: 6px 0 0; }
}
.pill-row { display: flex; flex-wrap: wrap; gap: 4px 6px; }
.pill-row .pill { margin: 0; }
@media (max-width: 640px) { .stack-table td > .pill { justify-self: start; } }
#suggest td.action { padding-right: 10px; }
#suggest td.action button { padding-left: 14px; padding-right: 14px; min-width: 44px; }

/* =================== page: guided demo (index) =================== */
.guided-page [hidden] { display: none !important; }
.g-hero { margin-bottom: var(--s4); }
.g-ex {
  display: inline-block; font-family: var(--font-mono); font-size: 0.66rem; font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--warn); background: var(--warn-bg); border-radius: 4px; padding: 1px 5px;
  vertical-align: middle; white-space: nowrap; line-height: 1.5;
}
.g-toolbar { display: flex; justify-content: space-between; align-items: center; gap: var(--s3); flex-wrap: wrap; margin: 0 0 var(--s3); }
.g-toolbar-btns { display: flex; flex-wrap: wrap; gap: var(--s2); }
.g-stepcount { font-size: 0.8rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--brass-deep); font-weight: 600; }
.guided-page button[aria-pressed="true"].ghost { background: var(--ink); color: var(--bone); border-color: var(--ink); }

/* progress chain */
.g-chain-wrap { background: var(--paper); border: 1px solid var(--line); border-radius: var(--r); box-shadow: var(--shadow-1); margin-bottom: var(--s5); }
.g-chain {
  list-style: none; margin: 0; padding: var(--s2); display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 0;
  overflow-x: auto; -webkit-overflow-scrolling: touch; scrollbar-width: thin;
}
.g-chain li { position: relative; min-width: 0; }
.g-chain li + li::before { content: ""; position: absolute; top: 30px; left: -50%; right: 50%; height: 2px; background: var(--line); z-index: 0; }
.g-chain li.is-done::before, .g-chain li.is-current::before { background: var(--brass); }
.g-chain button {
  position: relative; z-index: 1; width: 100%; min-height: 72px; display: flex; flex-direction: column; align-items: center; gap: 4px;
  background: transparent; border: 0; color: var(--ink); padding: 6px 4px; border-radius: var(--r-sm); text-align: center;
}
.g-chain button:hover { background: var(--zebra); }
.g-chain-num {
  width: 30px; height: 30px; border-radius: 50%; display: grid; place-items: center; font-family: var(--font-mono); font-weight: 600; font-size: 0.85rem;
  background: var(--paper); border: 2px solid var(--line); color: var(--muted); flex: none;
}
.g-chain .is-done .g-chain-num { border-color: var(--brass); color: var(--brass-deep); background: #F6EEDB; }
.g-chain .is-current .g-chain-num { border-color: var(--brass); background: var(--brass); color: var(--ink); box-shadow: 0 0 0 4px rgba(196, 163, 90, 0.25); }
.g-chain-txt { display: flex; flex-direction: column; min-width: 0; max-width: 100%; line-height: 1.25; }
.g-chain-name { font-weight: 600; font-size: 0.85rem; }
.g-chain-val { font-family: var(--font-mono); font-size: 0.72rem; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.g-chain .is-current .g-chain-val { color: var(--brass-deep); }

/* layout */
.g-layout { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: var(--s5); align-items: start; }
.g-main { min-width: 0; }
.g-aside { display: flex; flex-direction: column; gap: var(--s4); position: sticky; top: 52px; min-width: 0; }
.g-step > h2 { font-size: clamp(1.4rem, 2.6vw, 1.8rem); letter-spacing: -0.02em; }
.g-step > h2:focus { outline: none; }
.g-step > h2:focus-visible { outline: 3px solid var(--brass); outline-offset: 4px; }
.g-step > .lede { margin-bottom: var(--s4); }
.g-step .card + .card, .g-step .grid + .card, .g-step .card + .grid, .g-step .grid + .grid, .g-step .table-wrap { margin-top: var(--s4); }
.g-stepnav { display: flex; justify-content: space-between; gap: var(--s3); margin-top: var(--s5); padding-top: var(--s4); border-top: 1px solid var(--line); }
.g-btnrow { display: flex; flex-wrap: wrap; gap: var(--s2); align-items: center; margin-top: var(--s3); }
.g-wide { width: 100%; margin-bottom: var(--s3); }
.g-try { margin-top: var(--s4); background: var(--warn-bg); border: 1px solid #E8D3A6; border-radius: var(--r); padding: var(--s3) var(--s4); font-size: 0.95rem; }
.g-warn { color: var(--warn); font-weight: 600; }
.g-warn-txt { color: var(--warn); }

/* feed + notes */
.g-notes { border-left: 4px solid var(--brass); }
.g-notes p { font-size: 0.92rem; }
.g-feed { list-style: none; margin: 0; padding: 0; max-height: 60vh; overflow-y: auto; display: flex; flex-direction: column; gap: var(--s2); }
.g-feed > li { border-left: 3px solid var(--line); padding: 4px 0 4px var(--s3); font-size: 0.88rem; }
.g-feed > li.is-new { border-left-color: var(--brass); background: #FBF4E3; border-radius: 0 6px 6px 0; }
.g-feed > li b { display: block; }
.g-feed ul { margin: 2px 0 0; padding-left: 1rem; color: var(--muted); }
.g-feed-empty { color: var(--muted); border: 0 !important; padding-left: 0 !important; }

/* step 1 */
.g-draw { background: #F4EFE5; border: 1px solid var(--line-soft); border-radius: var(--r-sm); padding: var(--s2); margin-bottom: var(--s3); }
.g-draw svg { display: block; width: 100%; height: auto; }
.g-equip-card { display: flex; flex-direction: column; }
.g-equip-card.is-off { opacity: 0.6; }
.g-equip-card.is-off .g-draw { filter: grayscale(1); }
.g-facts { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s2); margin: 0 0 var(--s3); }
.g-facts div { background: var(--zebra); border-radius: var(--r-sm); padding: var(--s2); }
.g-facts dt { font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.g-facts dd { margin: 2px 0 0; font-size: 0.9rem; }
.g-include { margin-top: auto; font-weight: 500; }

/* step 2 */
.g-seg { display: flex; flex-wrap: wrap; gap: var(--s2); margin-bottom: var(--s3); }
.g-seg button { background: var(--paper); color: var(--ink); border-color: var(--line); }
.g-seg button:hover { border-color: var(--ink); background: var(--paper); }
.g-seg button[aria-pressed="true"] { background: var(--ink); color: var(--bone); border-color: var(--ink); }
.g-cover { display: flex; align-items: center; gap: var(--s3); margin-bottom: var(--s3); }
.g-bar { flex: 1; height: 8px; border-radius: 4px; background: var(--line); overflow: hidden; }
.g-bar span { display: block; height: 100%; background: var(--ok); transition: width 0.3s ease; }
.g-points { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--s2); }
.g-point { justify-content: flex-start; text-align: left; background: var(--paper); color: var(--ink); border-color: var(--line); padding: 6px 10px; line-height: 1.25; }
.g-point:hover { background: var(--zebra); }
.g-point[aria-pressed="true"] { border-color: var(--ink); box-shadow: inset 0 0 0 1px var(--ink); background: #F1E6C9; }
.g-pt-n { flex: none; width: 24px; height: 24px; border-radius: 50%; display: grid; place-items: center; font-family: var(--font-mono); font-size: 0.78rem; font-weight: 600; border: 2px solid var(--ok); color: var(--ok); }
.g-point.need .g-pt-n { border-color: var(--warn); color: var(--warn); border-style: dashed; }
.g-kv { display: grid; grid-template-columns: 9rem minmax(0, 1fr); gap: 6px var(--s3); margin: var(--s3) 0; font-size: 0.92rem; }
.g-kv dt { color: var(--muted); }
.g-kv dd { margin: 0; font-weight: 500; }

/* step 3 */
.g-net-diagram { display: grid; grid-template-columns: minmax(0, 1.2fr) 40px minmax(0, 1fr) minmax(70px, 0.8fr) minmax(0, 1.1fr); align-items: center; gap: var(--s2); }
.g-net-machines { display: flex; flex-direction: column; gap: var(--s2); }
.g-net-node { border: 2px solid var(--line); border-radius: var(--r-sm); background: var(--paper); padding: 8px 10px; display: flex; flex-direction: column; font-size: 0.82rem; color: var(--muted); min-width: 0; }
.g-net-node b { color: var(--ink); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.04em; }
.g-net-node.is-on { border-color: var(--ok); }
.g-net-node.g-edge.is-on { border-color: var(--brass); background: #FBF4E3; }
.g-net-node.g-cloud { border-radius: 24px; text-align: center; }
.g-net-link { position: relative; height: 4px; background: repeating-linear-gradient(90deg, var(--line) 0 6px, transparent 6px 10px); border-radius: 2px; }
.g-net-link span { position: absolute; left: 50%; top: -20px; transform: translateX(-50%); font-family: var(--font-mono); font-size: 0.68rem; color: var(--muted); white-space: nowrap; }
.g-net-link.is-live { background: repeating-linear-gradient(90deg, var(--ok) 0 6px, transparent 6px 10px); background-size: 20px 4px; animation: g-flow 0.8s linear infinite; }
.g-net-link.is-held { background: repeating-linear-gradient(90deg, var(--brass) 0 6px, transparent 6px 10px); }
.g-net-link.is-cut { background: repeating-linear-gradient(90deg, var(--alarm) 0 4px, transparent 4px 10px); }
.g-net-link.is-cut span { color: var(--alarm); font-weight: 600; }
@keyframes g-flow { to { background-position: 20px 0; } }
@media (prefers-reduced-motion: reduce) { .g-net-link.is-live { animation: none; } .g-bar span { transition: none; } }
.g-net-status { margin: var(--s3) 0 0; font-size: 0.92rem; color: var(--muted); }
.g-raw { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--s2); align-items: stretch; }
.g-raw > span { display: none; }
.g-raw pre { margin: 0; background: var(--zebra); border: 1px solid var(--line-soft); border-radius: 6px; padding: 8px 10px; font-size: 0.76rem; white-space: pre-wrap; word-break: break-all; }
.g-meaning { background: var(--ok-bg); border: 1px solid #B9D9C3; border-radius: 6px; padding: 8px 10px; }
.g-meaning b { display: block; font-size: 1.05rem; color: var(--ok); }
.g-ticks { list-style: none; padding: 0; margin: var(--s2) 0; font-size: 0.92rem; }
.g-ticks li { padding-left: 1.5rem; position: relative; margin-bottom: 6px; }
.g-ticks li::before { content: "✓"; position: absolute; left: 0; color: var(--ok); font-weight: 700; }
.g-ticks.bad li::before { content: "✕"; color: var(--alarm); }

/* step 4 */
.g-live-card.is-off { opacity: 0.75; }
.g-readings { list-style: none; margin: 0; padding: 0; }
.g-readings li { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 2px var(--s2); padding: 8px 0; border-top: 1px solid var(--line-soft); font-size: 0.9rem; }
.g-readings li b { font-size: 1.05rem; color: var(--ok); text-align: right; font-variant-numeric: tabular-nums; }
.g-readings li b small { font-size: 0.72rem; color: var(--muted); }
.g-nosensor { grid-column: 1 / -1; text-align: left; color: var(--warn); font-family: var(--font-mono); font-weight: 600; line-height: 1.3; }
.g-nosensor small { font-weight: 400; font-size: 0.75rem; }
.g-spark { grid-column: 1 / -1; width: 100%; height: 20px; display: block; }

/* step 5 */
.g-faults { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--s3); margin-bottom: var(--s4); }
.g-faults button { flex-direction: column; align-items: flex-start; justify-content: flex-start; text-align: left; background: var(--paper); color: var(--ink); border-color: var(--line); padding: var(--s3); gap: 2px; min-height: 88px; }
.g-faults button:hover { background: var(--zebra); }
.g-faults button[aria-checked="true"] { border-color: var(--ink); box-shadow: inset 0 0 0 1px var(--ink); background: #F1E6C9; }
.g-faults button span { font-size: 0.85rem; font-weight: 400; color: var(--muted); }
.g-vis { font-family: var(--font-mono); font-size: 0.72rem !important; }
.g-vis.ok { color: var(--ok) !important; }
.g-vis.warn { color: var(--warn) !important; }
.g-sim-ctl { margin-top: 0; margin-bottom: var(--s3); }
.g-daylabel { margin-left: auto; font-size: 0.8rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.g-daylabel b { font-size: 1.4rem; color: var(--ink); margin-left: 4px; }
.g-legend { margin-top: var(--s2); }
.g-svgtxt { font-family: var(--font-mono); font-size: 11px; fill: var(--muted); }
.g-svgtxt.alarm { fill: var(--alarm); }
.g-svgtxt.big { font-size: 15px; fill: var(--warn); }
.g-msg { margin-top: var(--s3); background: var(--zebra); border: 1px solid var(--line); border-radius: var(--r); padding: var(--s3) var(--s4); }
.g-msg p { margin: 4px 0 var(--s2); font-size: 0.95rem; }
.g-msg.alarm { background: var(--alarm-bg); border-color: #E8B4AE; }
.g-msg.alarm > b { color: var(--alarm); }

/* step 6 */
.g-opt { display: flex; flex-direction: column; }
.g-opt.is-chosen { border-color: var(--brass); box-shadow: 0 0 0 2px var(--brass), var(--shadow-1); }
.g-opt.is-chosen.bad { border-color: var(--alarm); box-shadow: 0 0 0 2px var(--alarm), var(--shadow-1); }
.g-opt.is-off { opacity: 0.6; }
.g-opt > button { margin-top: auto; width: 100%; }
.g-tl { position: relative; overflow: hidden; height: 54px; background: var(--zebra); border-radius: 6px; margin: var(--s2) 0 var(--s3); }
.g-tl span { position: absolute; top: 4px; font-family: var(--font-mono); font-size: 0.72rem; border-left: 2px solid var(--brass-deep); padding-left: 4px; height: 46px; white-space: nowrap; color: var(--brass-deep); transform: translateX(-1px); }
.g-tl .g-tl-b { top: 24px; height: 26px; display: flex; align-items: flex-end; border-color: var(--ok); color: var(--ok); }
.g-tl .g-tl-b.bad { border-color: var(--alarm); color: var(--alarm); }
.g-opt-kpis { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s2); margin-bottom: var(--s2); }
.g-opt-kpis > div { background: var(--zebra); border-radius: 6px; padding: var(--s2) var(--s3); }
.g-opt-kpis b { display: block; font-size: 1.4rem; font-weight: 500; }
.g-opt-kpis b.ok { color: var(--ok); }
.g-opt-kpis b.alarm { color: var(--alarm); }
.g-callout { margin-top: var(--s4); background: var(--ok-bg); border: 1px solid #B9D9C3; border-radius: var(--r); padding: var(--s3) var(--s4); }
.g-callout.bad { background: var(--alarm-bg); border-color: #E8B4AE; }
.g-callout.neutral { background: var(--zebra); border-color: var(--line); }
.g-callout p { margin: 4px 0 0; font-size: 0.95rem; }

/* step 7 */
.g-kpis { margin-bottom: 0; }
.g-kpis .kpi-value { font-family: var(--font-mono); font-weight: 500; }
.g-total td { background: var(--zebra) !important; }
.g-assume { margin-top: var(--s4); }
.g-assume summary { cursor: pointer; font-weight: 600; min-height: var(--tap); display: flex; align-items: center; }
.g-assume fieldset { border: 1px solid var(--line-soft); border-radius: var(--r-sm); padding: var(--s3); margin: 0 0 var(--s3); display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: var(--s2) var(--s3); min-width: 0; }
.g-assume legend { font-weight: 600; padding: 0 4px; }
.g-num { display: flex; flex-direction: column; gap: 4px; font-size: 0.85rem; color: var(--muted); min-width: 0; }
.g-num input { font: inherit; font-size: 16px; min-height: var(--tap); padding: 0 var(--s3); border: 1px solid var(--line); border-radius: var(--r-sm); background: #fff; color: var(--ink); width: 100%; font-family: var(--font-mono); }
.g-num input[aria-invalid="true"] { border-color: var(--alarm); }
.g-disclaimer { margin-top: var(--s3); }

/* go deeper */
.g-deeper:empty { display: none; }
.g-deeper { margin-top: var(--s5); }
.g-deeper-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: var(--s3); }
.g-deeper-card { display: flex; flex-direction: column; gap: 2px; min-height: var(--tap); text-decoration: none; color: var(--ink); background: var(--char); color: var(--bone); border-radius: var(--r); padding: var(--s3) var(--s4); border: 1px solid var(--hair); }
.g-deeper-card b { color: var(--brass-soft); }
.g-deeper-card span { font-size: 0.88rem; color: var(--silver); }
.g-deeper-card:hover { background: var(--ink); color: var(--bone); border-color: var(--brass); }

@media (max-width: 1100px) {
  .g-layout { grid-template-columns: minmax(0, 1fr); }
  .g-aside { position: static; display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
  .g-feed { max-height: 360px; }
}
@media (max-width: 860px) {
  .g-chain { grid-template-columns: repeat(7, minmax(118px, 1fr)); }
  .g-net-diagram { grid-template-columns: minmax(0, 1fr); }
  .g-net-machines { flex-direction: row; flex-wrap: wrap; }
  .g-net-machines .g-net-node { flex: 1 1 140px; }
  .g-net-link { width: 4px; height: 28px; margin: 0 auto; background: repeating-linear-gradient(180deg, var(--line) 0 6px, transparent 6px 10px); }
  .g-net-link.is-live { background: repeating-linear-gradient(180deg, var(--ok) 0 6px, transparent 6px 10px); background-size: 4px 20px; animation: none; }
  .g-net-link.is-held { background: repeating-linear-gradient(180deg, var(--brass) 0 6px, transparent 6px 10px); }
  .g-net-link.is-cut { background: repeating-linear-gradient(180deg, var(--alarm) 0 4px, transparent 4px 10px); }
  .g-net-link span { top: 50%; left: 14px; transform: translateY(-50%); }
  .g-net-node.g-cloud { border-radius: var(--r); }
  .g-faults { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 640px) {
  .g-toolbar { position: static; }
  .g-toolbar-btns { width: 100%; display: grid; grid-template-columns: 1fr 1fr; }
  .g-points { grid-template-columns: minmax(0, 1fr); }
  .g-raw { grid-template-columns: minmax(0, 1fr); }
  .g-raw > span { display: none; }
  .g-kv { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .g-kv dd { margin-bottom: 6px; }
  .g-facts { grid-template-columns: minmax(0, 1fr); }
  .g-stepnav button { flex: 1; }
  .g-daylabel { margin-left: 0; }
}
@media (max-width: 640px) { .stack-table td.g-blank { display: none; } }
.g-tl span.flip { transform: translateX(-100%); border-left: 0; border-right: 2px solid currentColor; padding-left: 0; padding-right: 4px; }
.g-money-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--s4); margin-top: var(--s4); }
.g-money-grid .chart-box svg { max-height: 300px; }
@media (min-width: 1400px) { .g-money-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); } }
.g-chain-name .g-ex { font-size: 0.58rem; padding: 0 4px; }
.g-step .grid > .card, .g-money-grid > .card { margin-top: 0; }