:root {
  color-scheme: dark;
  --bg: #101214;
  --bg-2: #15181c;
  --panel: #1a1d22;
  --panel-2: #22272f;
  --ink: #f7f7f2;
  --muted: #b1b7b6;
  --soft: #7f8887;
  --line: #343a42;
  --line-strong: #4c5663;
  --violet: #9b7cff;
  --teal: #2ec4b6;
  --green: #5ad67d;
  --amber: #f2c94c;
  --orange: #ff9f43;
  --red: #ff5d5d;
  --blue: #60a5fa;
  --shadow: 0 22px 60px rgba(0, 0, 0, 0.32);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background:
    linear-gradient(180deg, rgba(46, 196, 182, 0.08), transparent 390px),
    linear-gradient(135deg, rgba(242, 201, 76, 0.06), transparent 520px),
    var(--bg);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: linear-gradient(180deg, #000, transparent 72%);
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
}

.app-shell {
  display: grid;
  grid-template-columns: 286px minmax(0, 1fr);
  min-height: 100vh;
}

.side-nav {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 22px 16px;
  border-right: 1px solid var(--line);
  background: rgba(15, 14, 19, 0.94);
  backdrop-filter: blur(18px);
  z-index: 5;
}

.brand-mark {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 52px;
  margin-bottom: 24px;
}

.brand-glyph {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(46, 196, 182, 0.65);
  border-radius: 8px;
  color: #ffffff;
  background: linear-gradient(135deg, #2ec4b6, #5ad67d 54%, #f2c94c);
  font-weight: 800;
}

.brand-mark strong,
.brand-mark small,
.rail-card strong,
.rail-card small {
  display: block;
}

.brand-mark small,
.rail-card small {
  margin-top: 3px;
  color: var(--muted);
}

#stageNav {
  display: grid;
  gap: 7px;
}

#stageNav {
  scrollbar-width: none;
}

#stageNav::-webkit-scrollbar {
  display: none;
}

.nav-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  width: 100%;
  min-height: 44px;
  padding: 10px 12px;
  border: 1px solid transparent;
  border-radius: 8px;
  color: var(--muted);
  background: transparent;
  cursor: pointer;
  text-align: left;
}

.nav-item:hover,
.nav-item.active {
  color: var(--ink);
  border-color: var(--line-strong);
  background: #22272f;
}

.nav-item small {
  display: grid;
  place-items: center;
  width: 28px;
  height: 22px;
  border-radius: 999px;
  color: var(--teal);
  background: rgba(46, 196, 182, 0.12);
}

.rail-card {
  position: absolute;
  right: 16px;
  bottom: 18px;
  left: 16px;
  padding: 15px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #17151d;
}

.rail-status {
  display: block;
  width: 9px;
  height: 9px;
  margin-bottom: 12px;
  border-radius: 999px;
  background: var(--green);
  box-shadow: 0 0 0 5px rgba(90, 214, 125, 0.12);
}

.rail-card p {
  margin: 0 0 4px;
  color: var(--soft);
  font-size: 0.78rem;
}

.workspace {
  position: relative;
  min-width: 0;
  padding: 24px;
}

.topbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  align-items: start;
  margin-bottom: 20px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(27, 24, 33, 0.78);
  box-shadow: var(--shadow);
}

.crumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-bottom: 12px;
  color: var(--muted);
  font-size: 0.8rem;
}

.crumbs span::after {
  content: "/";
  margin-left: 8px;
  color: var(--soft);
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 1100px;
  margin-bottom: 10px;
  font-size: 1.65rem;
  line-height: 1.08;
  overflow-wrap: anywhere;
}

h2 {
  margin-bottom: 10px;
  font-size: 1.55rem;
  line-height: 1.18;
}

h3 {
  margin-bottom: 0;
  font-size: 1rem;
  line-height: 1.25;
}

.topbar-copy p,
.intro-band p,
.panel-head p,
.detection-card p,
.scenario-card dd,
.evidence-panel p,
.readiness-card p {
  color: var(--muted);
}

.topbar-copy p {
  max-width: 880px;
  margin-bottom: 0;
  line-height: 1.55;
  overflow-wrap: anywhere;
}

.topbar-actions {
  display: grid;
  justify-items: end;
  gap: 10px;
  min-width: 230px;
}

.scope-pill,
.status-text {
  border-radius: 999px;
}

.scope-pill {
  padding: 8px 11px;
  color: #ffffff;
  background: rgba(46, 196, 182, 0.18);
  border: 1px solid rgba(46, 196, 182, 0.48);
}

.status-text {
  color: var(--muted);
  font-size: 0.82rem;
}

.mode-toggle {
  display: grid;
  grid-template-columns: 1fr 1fr;
  width: 210px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #121018;
}

.mode-toggle button,
.filter-bar button {
  min-height: 34px;
  border: 0;
  border-radius: 6px;
  color: var(--muted);
  background: transparent;
  cursor: pointer;
}

.mode-toggle button.active,
.filter-bar button.active {
  color: var(--ink);
  background: var(--panel-2);
}

.stage-panel {
  display: grid;
  gap: 16px;
}

.intro-band {
  display: grid;
  gap: 8px;
  padding: 22px;
  border: 1px solid rgba(46, 196, 182, 0.38);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(46, 196, 182, 0.15), rgba(242, 201, 76, 0.07)),
    #171b1f;
}

.intro-band.compact {
  background: #171b1f;
  border-color: var(--line);
}

.intro-band p {
  max-width: 860px;
  margin-bottom: 0;
}

.section-kicker {
  color: var(--teal);
  font-size: 0.72rem;
  font-weight: 800;
}

.kpi-strip {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 10px;
}

.kpi-tile,
.panel,
.detection-card,
.scenario-card,
.evidence-panel,
.readiness-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(27, 24, 33, 0.92);
}

.kpi-tile {
  min-height: 154px;
  padding: 14px;
  overflow: hidden;
}

.kpi-tile span,
.source-tile span,
.detection-meta span,
.scenario-card footer span {
  color: var(--muted);
  font-size: 0.8rem;
}

.kpi-tile strong {
  display: block;
  margin: 8px 0 4px;
  font-size: 1.6rem;
}

.kpi-tile p {
  min-height: 38px;
  margin-bottom: 12px;
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.35;
}

.sparkline {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  align-items: end;
  height: 34px;
  gap: 4px;
}

.sparkline i {
  display: block;
  min-height: 4px;
  border-radius: 4px 4px 0 0;
  background: currentColor;
  opacity: 0.84;
}

.kpi-tile.green { color: var(--green); }
.kpi-tile.violet { color: var(--violet); }
.kpi-tile.blue { color: var(--blue); }
.kpi-tile.amber { color: var(--amber); }
.kpi-tile.red { color: var(--red); }
.kpi-tile.slate { color: var(--muted); }

.command-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.8fr) minmax(320px, 0.8fr);
  gap: 16px;
}

.command-grid.lower,
.telemetry-layout,
.operations-grid {
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.85fr);
}

.panel {
  padding: 16px;
}

.panel-head {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 14px;
}

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: end;
}

.legend span {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.74rem;
}

.legend span::before {
  content: "";
  width: 7px;
  height: 7px;
  margin-right: 6px;
  border-radius: 999px;
}

.legend .validated::before { background: var(--green); }
.legend .partial::before { background: var(--amber); }

.coverage-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}

.coverage-cell {
  min-height: 118px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #141119;
}

.coverage-cell.validated {
  border-color: rgba(90, 214, 125, 0.45);
  background: rgba(90, 214, 125, 0.09);
}

.coverage-cell.partial {
  border-color: rgba(242, 201, 76, 0.45);
  background: rgba(242, 201, 76, 0.08);
}

.coverage-cell span,
.coverage-cell small {
  display: block;
  color: var(--muted);
  font-size: 0.75rem;
}

.coverage-cell strong {
  display: block;
  margin: 9px 0 5px;
  font-family: "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
}

.coverage-cell p {
  margin-bottom: 8px;
  color: var(--ink);
  font-size: 0.86rem;
  line-height: 1.35;
}

.queue-list,
.signal-list,
.tuning-list,
.change-list {
  display: grid;
  gap: 8px;
}

.queue-item {
  display: grid;
  grid-template-columns: 12px minmax(0, 1fr);
  gap: 8px 10px;
  width: 100%;
  min-height: 58px;
  padding: 11px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  background: #141119;
  cursor: pointer;
  text-align: left;
}

.queue-item:hover {
  border-color: var(--violet);
}

.queue-item small {
  grid-column: 2;
  color: var(--muted);
}

.severity-dot {
  width: 9px;
  height: 9px;
  margin-top: 6px;
  border-radius: 999px;
  background: var(--blue);
}

.severity-dot.critical { background: var(--red); }
.severity-dot.high { background: var(--orange); }
.severity-dot.medium { background: var(--amber); }
.severity-dot.low { background: var(--blue); }

.signal-row {
  display: grid;
  grid-template-columns: 56px 92px minmax(0, 1fr) 70px;
  gap: 10px;
  align-items: center;
  min-height: 48px;
  padding: 9px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #141119;
}

.signal-row p {
  margin-bottom: 0;
  color: var(--ink);
}

.signal-row small {
  color: var(--muted);
  text-align: right;
}

.pipeline-rail,
.replay-line {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.pipeline-rail li {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 2px 10px;
  min-height: 48px;
  position: relative;
}

.pipeline-rail li:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 24px;
  bottom: -10px;
  left: 9px;
  width: 1px;
  background: var(--line);
}

.pipeline-rail span {
  grid-row: span 2;
  width: 18px;
  height: 18px;
  margin-top: 2px;
  border: 2px solid var(--green);
  border-radius: 999px;
  background: #132016;
}

.pipeline-rail p,
.replay-line p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.86rem;
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  width: fit-content;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #121018;
}

.filter-bar button {
  padding: 0 12px;
}

.detection-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(340px, 0.65fr);
  gap: 16px;
  align-items: start;
}

.detection-list {
  display: grid;
  gap: 12px;
}

.detection-card {
  padding: 16px;
  border-left: 4px solid var(--blue);
}

.detection-card.critical { border-left-color: var(--red); }
.detection-card.high { border-left-color: var(--orange); }
.detection-card.medium { border-left-color: var(--amber); }
.detection-card.low { border-left-color: var(--blue); }

.detection-card header,
.scenario-card header,
.scenario-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: start;
}

.detection-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 12px 0;
}

.detection-meta span {
  display: inline-flex;
  min-height: 26px;
  align-items: center;
  padding: 0 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #141119;
}

.query-strip {
  display: grid;
  gap: 6px;
  margin-bottom: 14px;
  padding: 11px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #121018;
}

.query-strip span {
  color: var(--soft);
  font-size: 0.76rem;
}

.lifecycle-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.lifecycle-grid section {
  padding: 11px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #141119;
}

.lifecycle-grid strong {
  display: block;
  margin-bottom: 5px;
  color: var(--ink);
}

.lifecycle-grid p {
  margin-bottom: 0;
  line-height: 1.45;
}

.detection-card footer,
.scenario-card footer {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.code-panel {
  position: sticky;
  top: 22px;
}

pre {
  overflow: auto;
  margin: 0;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #0d0b11;
}

code {
  color: #d9f7ee;
  font-family: "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.82rem;
  overflow-wrap: anywhere;
}

.severity {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 82px;
  min-height: 25px;
  padding: 0 9px;
  border: 1px solid currentColor;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 800;
}

.severity.low { color: var(--blue); background: rgba(96, 165, 250, 0.1); }
.severity.medium { color: var(--amber); background: rgba(242, 201, 76, 0.1); }
.severity.high { color: var(--orange); background: rgba(255, 159, 67, 0.1); }
.severity.critical { color: var(--red); background: rgba(255, 93, 93, 0.1); }

.kill-chain-strip {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 8px;
}

.kill-chain-strip span {
  display: grid;
  place-items: center;
  min-height: 48px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--muted);
  background: #141119;
  text-align: center;
}

.scenario-grid,
.evidence-grid,
.readiness-grid,
.source-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.scenario-card,
.evidence-panel,
.readiness-card {
  padding: 16px;
}

.scenario-card.critical {
  border-color: rgba(255, 93, 93, 0.45);
}

.scenario-card.high {
  border-color: rgba(255, 159, 67, 0.42);
}

.scenario-path {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 6px;
  margin: 14px 0;
}

.scenario-path span {
  display: grid;
  place-items: center;
  min-height: 34px;
  padding: 0 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--muted);
  background: #141119;
  text-align: center;
  font-size: 0.78rem;
}

dl {
  margin: 0;
}

dt {
  margin-top: 11px;
  color: var(--ink);
  font-weight: 800;
}

dd {
  margin: 4px 0 0;
  line-height: 1.48;
}

.telemetry-layout,
.operations-grid {
  display: grid;
  gap: 16px;
}

.evidence-hero {
  display: grid;
  grid-template-columns: minmax(320px, 0.72fr) minmax(0, 1.28fr);
  gap: 16px;
  align-items: start;
}

.source-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.source-tile {
  min-height: 126px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #141119;
}

.source-tile.healthy {
  border-color: rgba(90, 214, 125, 0.32);
}

.source-tile.watch {
  border-color: rgba(242, 201, 76, 0.35);
}

.source-tile strong {
  display: block;
  margin: 8px 0 5px;
  font-size: 1.4rem;
}

.source-tile p {
  min-height: 36px;
  margin-bottom: 8px;
  color: var(--muted);
}

.replay-line li {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 2px 12px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #141119;
}

.replay-line code {
  grid-row: span 2;
  color: var(--teal);
}

.validation-panel {
  display: grid;
  align-content: start;
  gap: 14px;
  background:
    linear-gradient(135deg, rgba(46, 196, 182, 0.12), rgba(90, 214, 125, 0.07)),
    rgba(27, 24, 33, 0.92);
}

.validation-panel .panel-head {
  margin-bottom: 0;
}

.validation-panel .panel-head code {
  max-width: 220px;
  text-align: right;
}

.validation-score {
  display: grid;
  gap: 3px;
  padding: 18px;
  border: 1px solid rgba(46, 196, 182, 0.38);
  border-radius: 8px;
  background: rgba(15, 18, 20, 0.58);
}

.validation-score strong {
  color: var(--green);
  font-size: 2.7rem;
  line-height: 1;
}

.validation-score span {
  color: var(--muted);
}

.validation-panel p {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.5;
}

.validation-breakdown {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.validation-breakdown article {
  display: grid;
  gap: 4px;
  min-height: 102px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #14191c;
}

.validation-breakdown strong {
  color: var(--teal);
  font-size: 1.5rem;
}

.validation-breakdown span {
  color: var(--ink);
  font-weight: 800;
}

.validation-breakdown small {
  color: var(--muted);
  line-height: 1.35;
}

.artifact-list {
  display: grid;
  gap: 8px;
}

.artifact-list article {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(190px, 0.46fr);
  gap: 12px;
  align-items: center;
  min-height: 94px;
  padding: 12px;
  border: 1px solid var(--line);
  border-left: 4px solid var(--teal);
  border-radius: 8px;
  background: #14191c;
}

.artifact-list article.repeatable {
  border-left-color: var(--green);
}

.artifact-list article.reviewed {
  border-left-color: var(--amber);
}

.artifact-list strong,
.artifact-list p,
.artifact-list code {
  overflow-wrap: anywhere;
}

.artifact-list strong {
  display: block;
  margin: 4px 0;
}

.artifact-list p {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.42;
}

.artifact-type {
  color: var(--teal);
  font-size: 0.74rem;
  font-weight: 800;
}

.artifact-list code {
  justify-self: end;
  max-width: 100%;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #0f1114;
}

.evidence-panel {
  min-height: 210px;
  display: grid;
  align-content: start;
  gap: 10px;
}

.evidence-meter {
  width: 100%;
  height: 9px;
  overflow: hidden;
  border-radius: 999px;
  background: #0f0e13;
}

.evidence-meter span {
  display: block;
  width: var(--score);
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--violet), var(--teal), var(--green));
}

.evidence-panel strong {
  color: var(--green);
  font-size: 0.84rem;
}

.readiness-card {
  display: grid;
  gap: 8px;
  min-height: 166px;
}

.readiness-card > span {
  width: 11px;
  height: 11px;
  border-radius: 999px;
  background: var(--soft);
}

.readiness-card.passed > span {
  background: var(--green);
  box-shadow: 0 0 0 5px rgba(90, 214, 125, 0.1);
}

.readiness-card.pending > span {
  background: var(--amber);
  box-shadow: 0 0 0 5px rgba(242, 201, 76, 0.1);
}

.readiness-card code {
  width: fit-content;
}

.tuning-list article,
.change-list article {
  display: grid;
  gap: 5px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #141119;
}

.tuning-list p {
  margin-bottom: 0;
  color: var(--muted);
}

.tuning-list span {
  color: var(--ink);
}

.tuning-list small,
.change-list span {
  color: var(--muted);
}

[data-mode="overview"] .lifecycle-grid,
[data-mode="overview"] .code-panel,
[data-mode="overview"] .query-strip {
  display: none;
}

[data-mode="overview"] .detection-layout {
  grid-template-columns: 1fr;
}

@media (min-width: 1400px) {
  h1 {
    font-size: 1.8rem;
  }

  .workspace {
    padding: 28px;
  }
}

@media (max-width: 1180px) {
  .app-shell {
    grid-template-columns: 244px minmax(0, 1fr);
  }

  .kpi-strip {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .command-grid,
  .command-grid.lower,
  .detection-layout,
  .evidence-hero,
  .telemetry-layout,
  .operations-grid {
    grid-template-columns: 1fr;
  }

  .code-panel {
    position: static;
  }
}

@media (max-width: 900px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .side-nav {
    position: static;
    height: auto;
  }

  .rail-card {
    position: static;
    margin-top: 16px;
  }

  #stageNav {
    grid-template-columns: repeat(5, minmax(132px, 1fr));
    overflow-x: auto;
  }

  .topbar {
    grid-template-columns: 1fr;
  }

  .topbar-actions {
    justify-items: start;
  }

  .coverage-grid,
  .scenario-grid,
  .evidence-grid,
  .readiness-grid,
  .source-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .signal-row {
    grid-template-columns: 52px 86px minmax(0, 1fr);
  }

  .signal-row small {
    grid-column: 3;
    text-align: left;
  }

  .artifact-list article {
    grid-template-columns: 1fr;
  }

  .artifact-list code {
    justify-self: start;
  }
}

@media (max-width: 640px) {
  body {
    overflow-x: hidden;
  }

  .app-shell,
  .side-nav,
  .workspace,
  .topbar,
  .stage-frame {
    width: 100%;
    min-width: 0;
  }

  .side-nav {
    padding: 14px;
    overflow: hidden;
  }

  .brand-mark {
    margin-bottom: 12px;
  }

  .rail-card {
    display: none;
  }

  .workspace {
    padding: 14px;
  }

  .topbar,
  .intro-band,
  .panel,
  .detection-card,
  .scenario-card,
  .evidence-panel,
  .readiness-card {
    padding: 14px;
  }

  h1 {
    font-size: 1.55rem;
  }

  h2 {
    font-size: 1.24rem;
  }

  #stageNav,
  .kpi-strip,
  .coverage-grid,
  .scenario-grid,
  .evidence-grid,
  .readiness-grid,
  .source-grid,
  .validation-breakdown,
  .lifecycle-grid,
  .kill-chain-strip,
  .scenario-path {
    grid-template-columns: 1fr;
  }

  #stageNav {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    overflow: visible;
    max-width: 100%;
  }

  .nav-item {
    min-height: 40px;
    padding: 8px 10px;
  }

  .mode-toggle {
    width: 100%;
  }

  .topbar-actions {
    width: 100%;
    min-width: 0;
  }

  .topbar-copy {
    min-width: 0;
  }

  .scope-pill {
    max-width: 100%;
    white-space: normal;
    text-align: center;
  }

  .signal-row {
    grid-template-columns: 1fr;
  }

  .signal-row small {
    grid-column: auto;
  }

  .validation-panel .panel-head {
    display: grid;
  }

  .validation-panel .panel-head code {
    max-width: 100%;
    text-align: left;
  }

  .validation-score strong {
    font-size: 2.35rem;
  }
}