.sim-container {
  padding-top: 140px;
}

.sim-container > .section:first-child {
  padding-top: 72px;
  padding-bottom: 88px;
}

.sim-container > .section + .section {
  padding-top: 0;
}

.sim-note-grid {
  grid-template-columns: repeat(2, minmax(240px, 1fr));
  margin-top: 24px;
}

.sim-container .title-display {
  margin: 0;
  font-size: clamp(2.8rem, 6vw, 5.4rem);
  line-height: 0.94;
  letter-spacing: -0.04em;
  text-transform: uppercase;
}

.sim-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.sim-grid {
  display: grid;
  grid-template-columns: minmax(240px, 280px) minmax(280px, 360px) minmax(320px, 1fr) minmax(280px, 380px);
  gap: 24px;
  align-items: start;
}

.sim-panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-soft);
  min-height: 100%;
}

#panelTwin {
  position: sticky;
  top: 108px;
  overflow: hidden;
}

#panelTwin::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(0, 212, 255, 0.08), transparent 24%),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(180deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: auto, 28px 28px, 28px 28px;
  opacity: 0.22;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.92), rgba(0, 0, 0, 0.35));
}

.sim-panel h2 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: 1.1rem;
  text-transform: uppercase;
  color: var(--white-strong);
}

.tag-telemetry {
  margin-bottom: 12px;
}

.tag-telemetry::before {
  animation: telemetry-pulse 2.4s ease-in-out infinite;
}

.panel-subheader {
  display: inline-flex;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cyan);
}

.timeline-item,
.decision-option {
  width: 100%;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: rgba(3, 13, 26, 0.78);
  color: var(--white);
  text-align: left;
  cursor: pointer;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.timeline-item + .timeline-item,
.state-card + .state-card,
.alert-card + .alert-card,
.law-card + .law-card,
.decision-option + .decision-option {
  margin-top: 12px;
}

.timeline-item:hover,
.timeline-item:focus-visible,
.decision-option:hover,
.decision-option:focus-visible {
  transform: translateY(-2px);
  border-color: var(--border-strong);
  background: rgba(10, 30, 48, 0.92);
}

.timeline-item.is-active,
.decision-option.is-selected {
  border-color: var(--cyan);
  background: rgba(0, 112, 243, 0.12);
}

.timeline-time,
.timeline-phase,
.decision-time,
.decision-phase,
.state-label,
.state-status,
.alert-level,
.law-code {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.timeline-time,
.decision-time,
.law-code {
  color: var(--cyan);
}

.timeline-phase,
.decision-phase,
.state-status,
.alert-level {
  color: var(--gray);
}

.timeline-item strong,
.decisionCard h3,
.decision-header + h3,
.alert-card h3,
.law-card h3,
.debrief-card h3 {
  display: block;
  margin: 10px 0 8px;
  font-family: var(--font-display);
  font-size: 1rem;
  line-height: 1.2;
  color: var(--white-strong);
}

.timeline-summary,
.decision-copy,
.decision-option-outcome,
.alert-card p,
.law-card p,
.debrief-card p,
.decision-result p {
  display: block;
  margin: 0;
  color: var(--white);
  font-size: 0.95rem;
  line-height: 1.65;
}

.timeline-choice {
  display: inline-flex;
  margin-top: 10px;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(0, 212, 255, 0.12);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.state-card,
.alert-card,
.law-card,
.debrief-card,
.decision-result,
.metric-card,
.compare-card,
.model-card {
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: rgba(3, 13, 26, 0.78);
}

.state-card strong {
  display: block;
  margin: 8px 0 6px;
  font-size: 1.05rem;
  color: var(--white-strong);
}

.state-ok {
  border-left: 3px solid #00b090;
}

.state-warning {
  border-left: 3px solid #ffcd35;
}

.state-critical {
  border-left: 3px solid #fc5185;
}

.alert-warning {
  border-left: 3px solid #ffcd35;
}

.alert-critical {
  border-left: 3px solid #fc5185;
}

.decision-header,
.decision-option-footer,
.debrief-grid {
  display: grid;
  gap: 8px;
}

.decision-options {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.decision-option-title {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-display);
  font-size: 0.98rem;
  color: var(--white-strong);
}

.decision-option-footer {
  margin-top: 12px;
}

.decision-badge {
  display: inline-flex;
  width: fit-content;
  padding: 4px 10px;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.badge-outline {
  border: 1px solid var(--border);
  color: var(--gray);
}

.score-best {
  background: rgba(0, 176, 144, 0.14);
  color: #8ef0dd;
}

.score-acceptable {
  background: rgba(255, 205, 53, 0.14);
  color: #ffe38b;
}

.score-poor {
  background: rgba(252, 81, 133, 0.14);
  color: #ff9ebb;
}

.decision-result,
.error-box {
  margin-top: 18px;
}

.decision-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.nav-mini {
  min-height: 42px;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: rgba(3, 13, 26, 0.78);
  color: var(--white);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
}

.nav-mini:hover,
.nav-mini:focus-visible {
  border-color: var(--border-strong);
  background: rgba(10, 30, 48, 0.92);
}

.twin-overview,
.twin-compare-grid,
.twin-model-grid,
.twin-command-bar,
.twin-delta-grid {
  display: grid;
  gap: 12px;
}

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

.command-card {
  position: relative;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background:
    linear-gradient(180deg, rgba(0, 212, 255, 0.08), rgba(0, 212, 255, 0) 68%),
    rgba(3, 13, 26, 0.9);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.command-card strong,
.delta-card strong {
  display: block;
  margin-top: 8px;
  font-family: var(--font-display);
  font-size: 1.25rem;
  line-height: 1.05;
  color: var(--white-strong);
}

.command-card p,
.delta-card p {
  margin: 8px 0 0;
  color: var(--gray);
  line-height: 1.55;
}

.command-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(0, 212, 255, 0.12);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.command-chip::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: currentColor;
  box-shadow: 0 0 14px currentColor;
}

.command-chip.is-critical {
  background: rgba(252, 81, 133, 0.14);
  color: #ff9ebb;
}

.command-chip.is-warning {
  background: rgba(255, 205, 53, 0.14);
  color: #ffe38b;
}

.twin-overview {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-bottom: 16px;
}

.metric-card {
  position: relative;
  overflow: hidden;
}

.metric-label,
.metric-note,
.model-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.metric-label,
.model-label {
  color: var(--gray);
}

.metric-value {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  margin: 10px 0 8px;
  font-family: var(--font-display);
  font-size: 1.8rem;
  line-height: 1;
  color: var(--white-strong);
}

.metric-unit {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--gray);
}

.metric-bar,
.model-bar {
  margin-top: 10px;
}

.bar-track {
  width: 100%;
  height: 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--cyan), var(--blue));
  transition: width 0.45s ease, background 0.3s ease;
}

.bar-fill.tone-warning {
  background: linear-gradient(90deg, #ffcd35, #ff8c00);
}

.bar-fill.tone-critical {
  background: linear-gradient(90deg, #fc5185, #ff6b6b);
}

.metric-note {
  margin-top: 8px;
  color: var(--gray);
}

.twin-compare-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-bottom: 16px;
}

.compare-card.is-recommended {
  border-color: rgba(0, 176, 144, 0.35);
}

.compare-card.is-selected {
  border-color: rgba(0, 212, 255, 0.24);
}

.compare-card h3,
.model-card h3 {
  margin: 8px 0 6px;
  font-family: var(--font-display);
  font-size: 0.95rem;
  line-height: 1.2;
  color: var(--white-strong);
}

.compare-card p,
.model-card p {
  margin: 0;
  color: var(--gray);
  line-height: 1.6;
}

.model-card strong {
  display: block;
  margin-top: 8px;
  color: var(--white-strong);
  font-size: 1rem;
}

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

.delta-card {
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: rgba(3, 13, 26, 0.82);
}

.delta-card strong {
  font-size: 1.45rem;
}

.delta-card strong.delta-danger {
  color: #ff9ebb;
}

.delta-card strong.delta-safe {
  color: #8ef0dd;
}

.delta-card strong.delta-note {
  color: #8fb9ff;
}

.delta-card.is-placeholder {
  grid-column: 1 / -1;
}

.law-grid,
.lesson-list {
  display: grid;
  gap: 12px;
}

.lesson-list {
  padding-left: 18px;
  margin: 0;
}

.lesson-list li {
  color: var(--white);
  line-height: 1.65;
}

#panelTwin {
  display: grid;
  gap: 16px;
}

#twinHeader,
#twinDelta,
#twinModel,
#twinOverview,
#lawOverlay {
  display: grid;
  gap: 12px;
}

#mermaidDivergence {
  margin-top: 24px;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: rgba(3, 13, 26, 0.78);
}

@media (max-width: 1320px) {
  .sim-grid {
    grid-template-columns: repeat(2, minmax(280px, 1fr));
  }

  #panelTwin {
    position: static;
  }
}

@media (max-width: 760px) {
  .sim-container {
    padding-top: 120px;
  }

  .sim-container > .section:first-child {
    padding-top: 56px;
    padding-bottom: 72px;
  }

  .sim-note-grid,
  .sim-grid {
    grid-template-columns: 1fr;
  }

  .sim-actions {
    flex-direction: column;
  }

  .twin-command-bar,
  .twin-delta-grid,
  .twin-overview,
  .twin-compare-grid {
    grid-template-columns: 1fr;
  }
}

@keyframes telemetry-pulse {
  0%,
  100% {
    transform: scale(1);
    opacity: 0.85;
    box-shadow: 0 0 0 0 rgba(0, 212, 255, 0.45);
  }

  50% {
    transform: scale(1.15);
    opacity: 1;
    box-shadow: 0 0 0 8px rgba(0, 212, 255, 0);
  }
}