.oi-nav-group {
  border: 1px solid rgba(216, 161, 58, .18);
  border-radius: 16px;
  background: rgba(255, 255, 255, .035);
  overflow: hidden;
  margin-top: 0;
  padding: 0;
}

.oi-nav-group > .nav-group-toggle {
  appearance: none;
  -webkit-appearance: none;
  border: 0;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 11px 12px;
  color: var(--text);
  background: transparent;
  font-weight: 950;
  font-size: .86rem;
  text-align: left;
}

.oi-nav-group > .nav-group-toggle::before {
  content: '▸';
  color: var(--gold-2);
  margin-right: 4px;
  transition: transform .18s ease;
}

.oi-nav-group > .nav-group-toggle[aria-expanded="true"]::before {
  transform: rotate(90deg);
}

.oi-nav-group > .nav-group-toggle span {
  flex: 1;
}

.oi-nav-group > .nav-group-toggle strong {
  display: inline-grid;
  place-items: center;
  min-width: 24px;
  height: 20px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: #06101f;
  background: linear-gradient(180deg, #f5cf7d, #c78a25);
  font-size: .72rem;
  line-height: 1;
}

.oi-nav-group > .nav-group-toggle:hover {
  background: rgba(216, 161, 58, .08);
}

.oi-nav-group .nav-group-items {
  display: grid;
  gap: 6px;
  padding: 0 8px 10px 8px;
}

.oi-nav-group .oi-nav-item {
  position: relative;
  padding-left: 34px;
  color: var(--text);
  border-color: rgba(240, 197, 111, .34);
  background: rgba(216, 161, 58, .08);
}

.oi-nav-group .oi-nav-item::before {
  content: '';
  position: absolute;
  left: 14px;
  top: 50%;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--safe);
  box-shadow: 0 0 16px rgba(119, 212, 107, .5);
  transform: translateY(-50%);
}

.oi-sidebar-brief {
  margin-top: 10px;
  padding: 12px;
  border: 1px solid rgba(240, 197, 111, .22);
  border-radius: 16px;
  background: rgba(216, 161, 58, .07);
}

.oi-sidebar-brief strong,
.oi-sidebar-brief span {
  display: block;
}

.oi-sidebar-brief span {
  color: var(--muted);
  font-size: .78rem;
  line-height: 1.35;
  margin-top: 4px;
}

.oi-hero,
.oi-stat-grid,
.oi-map-card,
.oi-lab-card,
.oi-guardrail-card,
.oi-ladder-card,
.oi-next-card,
.oi-signal-inventory-card {
  grid-column: 1 / -1;
}

.oi-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 380px);
  gap: 22px;
  align-items: stretch;
  min-height: 0;
}

.oi-hero h3,
.oi-section-head h3 {
  margin: 0 0 10px;
  font-size: clamp(1.45rem, 2.4vw, 2.2rem);
}

.oi-hero p,
.oi-section-head p,
.oi-flow-node p,
.oi-maturity-step p,
.oi-next-grid p,
.oi-decision-card p,
.oi-stat p,
.oi-signal-card p,
.oi-coverage-meter p {
  color: var(--muted);
  line-height: 1.55;
}

.oi-hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 18px;
}

.oi-brain-card {
  border: 1px solid rgba(240, 197, 111, .3);
  border-radius: 24px;
  padding: 22px;
  background:
    radial-gradient(circle at 30% 10%, rgba(240, 197, 111, .22), transparent 42%),
    linear-gradient(160deg, rgba(6, 20, 36, .94), rgba(9, 29, 48, .86));
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .04);
}

.oi-brain-card span,
.oi-stat span,
.oi-next-grid span,
.oi-coverage-meter span,
.oi-signal-topline span,
.oi-signal-recs span {
  display: block;
  color: var(--gold-2);
  text-transform: uppercase;
  letter-spacing: .08em;
  font-size: .72rem;
}

.oi-brain-card strong {
  display: block;
  margin-top: 8px;
  font-size: 1.4rem;
}

.oi-stat-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(180px, 1fr));
  gap: 14px;
}

.oi-stat-grid .oi-stat {
  grid-column: auto;
  min-height: 148px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.oi-stat strong {
  display: block;
  margin: 8px 0 6px;
  font-size: clamp(1.4rem, 2vw, 2rem);
  color: #fff4d8;
}

.oi-section-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(230px, 320px);
  gap: 18px;
  align-items: start;
}

.oi-coverage-meter {
  border: 1px solid rgba(240, 197, 111, .26);
  border-radius: 22px;
  padding: 18px;
  background: rgba(2, 9, 20, .38);
}

.oi-coverage-meter strong {
  display: block;
  color: #fff4d8;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1;
  margin: 8px 0;
}

.oi-signal-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.oi-signal-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  border: 1px solid rgba(216, 161, 58, .2);
  border-radius: 22px;
  padding: 16px;
  background:
    radial-gradient(circle at 18% 0%, rgba(240, 197, 111, .08), transparent 35%),
    rgba(5, 18, 32, .55);
  min-height: 360px;
}

.oi-signal-card.is-active {
  border-color: rgba(119, 212, 107, .32);
}

.oi-signal-card.is-empty {
  opacity: .86;
}

.oi-signal-topline {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
}

.oi-signal-topline strong {
  border: 1px solid rgba(240, 197, 111, .24);
  border-radius: 999px;
  padding: 4px 8px;
  color: #fff4d8;
  font-size: .72rem;
  white-space: nowrap;
}

.oi-signal-card.is-active .oi-signal-topline strong {
  border-color: rgba(119, 212, 107, .34);
  color: #dff8da;
  background: rgba(119, 212, 107, .08);
}

.oi-signal-card h4 {
  margin: 0;
  color: #fff4d8;
  font-size: 1.08rem;
}

.oi-signal-count {
  display: flex;
  align-items: baseline;
  gap: 8px;
  border-top: 1px solid rgba(216, 161, 58, .16);
  padding-top: 12px;
}

.oi-signal-count strong {
  color: var(--gold-2);
  font-size: 1.8rem;
}

.oi-signal-count span,
.oi-signal-card small {
  color: var(--muted);
  font-size: .82rem;
  line-height: 1.4;
}

.oi-signal-readset {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.oi-signal-readset em {
  border: 1px solid rgba(240, 197, 111, .22);
  border-radius: 999px;
  padding: 6px 8px;
  color: #f2d891;
  background: rgba(255, 255, 255, .035);
  font-size: .76rem;
  font-style: normal;
}

.oi-signal-recs {
  margin-top: auto;
  border-top: 1px solid rgba(216, 161, 58, .16);
  padding-top: 12px;
}

.oi-signal-recs p {
  margin-bottom: 0;
}

.oi-flow-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.oi-flow-node,
.oi-maturity-step,
.oi-next-grid > div {
  border: 1px solid rgba(216, 161, 58, .2);
  border-radius: 20px;
  padding: 16px;
  background: rgba(5, 18, 32, .55);
}

.oi-flow-node span {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1px solid rgba(240, 197, 111, .4);
  color: var(--gold-2);
  margin-bottom: 10px;
}

.oi-flow-node strong,
.oi-maturity-step strong,
.oi-next-grid strong {
  display: block;
  font-size: 1.05rem;
}

.oi-picker {
  display: grid;
  gap: 8px;
  max-width: 420px;
  margin: 18px 0;
}

.oi-picker span {
  color: var(--gold-2);
  font-weight: 700;
}

.oi-picker select {
  width: 100%;
  border: 1px solid rgba(240, 197, 111, .35);
  border-radius: 16px;
  background: rgba(3, 12, 22, .88);
  color: var(--text);
  padding: 12px 14px;
}

.oi-two-col {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(260px, .8fr);
  gap: 18px;
}

.oi-two-col h4 {
  margin: 0 0 10px;
}

.oi-because-list {
  margin: 0;
  padding-left: 22px;
  color: var(--muted);
  line-height: 1.55;
}

.oi-gate-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.oi-gate-stack span {
  border: 1px solid rgba(119, 212, 107, .28);
  border-radius: 999px;
  padding: 8px 11px;
  background: rgba(119, 212, 107, .08);
  color: #dff8da;
  font-size: .86rem;
}

.oi-guardrail-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  list-style: none;
  padding: 0;
  margin: 18px 0 0;
}

.oi-guardrail-list li {
  border: 1px solid rgba(240, 197, 111, .2);
  border-radius: 18px;
  padding: 14px;
  background: rgba(6, 21, 36, .55);
}

.oi-guardrail-list strong,
.oi-guardrail-list span {
  display: block;
}

.oi-guardrail-list span {
  color: var(--muted);
  margin-top: 6px;
  line-height: 1.45;
}

.oi-maturity-grid,
.oi-next-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.oi-maturity-step div {
  display: flex;
  gap: 10px;
  align-items: center;
}

.oi-maturity-step div span {
  color: var(--gold-2);
  font-weight: 800;
}

.oi-maturity-step small {
  color: var(--muted);
}

@media (max-width: 1280px) {
  .oi-stat-grid,
  .oi-signal-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 1120px) {
  .oi-hero,
  .oi-two-col,
  .oi-section-split {
    grid-template-columns: 1fr;
  }

  .oi-flow-grid,
  .oi-guardrail-list,
  .oi-maturity-grid,
  .oi-next-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .oi-stat-grid,
  .oi-signal-grid,
  .oi-flow-grid,
  .oi-guardrail-list,
  .oi-maturity-grid,
  .oi-next-grid {
    grid-template-columns: 1fr;
  }
}