/* ==============================================================
   TRẠM DIGITAL TWIN ENGINE — STYLING (ELOQWNT INSPIRED)
   Ultra-Premium Fintech & AI Decision Simulator Aesthetics
   Obsidian Dark Surfaces, Luminous Cyber-Mint & Glassmorphism
   ============================================================== */

:root {
  --twin-bg-deep: #07090e;
  --twin-bg-surface: #0e131b;
  --twin-bg-card: rgba(16, 23, 34, 0.78);
  --twin-bg-card-hover: rgba(22, 32, 48, 0.92);
  --twin-border: rgba(255, 255, 255, 0.09);
  --twin-border-active: rgba(16, 185, 129, 0.45);
  --twin-mint: #10b981;
  --twin-mint-neon: #00ff9d;
  --twin-mint-glow: rgba(16, 185, 129, 0.28);
  --twin-text-primary: #ffffff;
  --twin-text-secondary: #94a3b8;
  --twin-text-muted: #64748b;
  --twin-font: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --twin-mono: 'SF Mono', Consolas, Monaco, monospace;
}

/* SECTION SHELL */
.tram-digital-twin-section {
  position: relative;
  background: radial-gradient(circle at 50% 0%, #0d1722 0%, #06090e 70%, #040609 100%);
  color: var(--twin-text-primary);
  border-radius: 28px;
  margin: 24px 0 36px 0;
  padding: 40px 32px 48px;
  overflow: hidden;
  border: 1px solid rgba(16, 185, 129, 0.22);
  box-shadow: 0 24px 60px -12px rgba(0, 0, 0, 0.7), 0 0 50px -10px rgba(16, 185, 129, 0.12);
  font-family: var(--twin-font);
}

.twin-ambient-grid {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
  opacity: 0.6;
}

.twin-ambient-glow {
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.15) 0%, transparent 70%);
  pointer-events: none;
  filter: blur(40px);
  z-index: 0;
}
.twin-ambient-glow.top-center { top: -200px; left: calc(50% - 250px); }
.twin-ambient-glow.bottom-right { bottom: -150px; right: -150px; }

.twin-container {
  position: relative;
  z-index: 1;
  max-width: 1240px;
  margin: 0 auto;
}

/* TOP KICKER */
.twin-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--twin-mint-neon);
  margin-bottom: 16px;
}
.twin-beacon-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--twin-mint-neon);
  box-shadow: 0 0 10px var(--twin-mint-neon);
  animation: twinPulse 2s infinite ease-in-out;
}
@keyframes twinPulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.4); opacity: 0.6; }
}

/* HERO SIMULATOR CAPSULE (ELOQWNT STYLE) */
.twin-decision-header {
  text-align: center;
  max-width: 820px;
  margin: 0 auto 36px;
}
.twin-main-title {
  font-size: clamp(2rem, 3.6vw, 3rem);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.02em;
  margin: 0 0 14px;
  background: linear-gradient(180deg, #ffffff 0%, #cbd5e1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.twin-sub-title {
  font-size: 1.05rem;
  color: var(--twin-text-secondary);
  line-height: 1.6;
  margin: 0 0 28px;
}

/* PROMPT CAPSULE BAR */
.twin-prompt-capsule {
  display: flex;
  align-items: center;
  background: rgba(18, 26, 38, 0.95);
  border: 1.5px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  padding: 6px 8px 6px 20px;
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.4), 0 0 24px rgba(16, 185, 129, 0.12);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  max-width: 680px;
  margin: 0 auto 16px;
}
.twin-prompt-capsule:focus-within {
  border-color: var(--twin-mint);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.5), 0 0 30px rgba(16, 185, 129, 0.3);
}
.twin-capsule-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--twin-mint-neon);
  margin-right: 12px;
}
.twin-prompt-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: #ffffff;
  font-family: var(--twin-font);
  font-size: 0.96rem;
  font-weight: 500;
}
.twin-prompt-input::placeholder {
  color: #64748b;
}
.twin-btn-simulate {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  color: #ffffff;
  border: none;
  outline: none;
  padding: 10px 22px;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.25s ease;
  box-shadow: 0 4px 14px rgba(16, 185, 129, 0.4);
}
.twin-btn-simulate:hover {
  transform: translateY(-1px) scale(1.02);
  box-shadow: 0 6px 20px rgba(16, 185, 129, 0.6);
  background: linear-gradient(135deg, #00ff9d 0%, #059669 100%);
  color: #07090e;
}

/* QUICK PILLS */
.twin-quick-pills {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
}
.twin-scenario-pill {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #cbd5e1;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}
.twin-scenario-pill:hover,
.twin-scenario-pill.active {
  background: rgba(16, 185, 129, 0.18);
  border-color: var(--twin-mint);
  color: #ffffff;
  transform: translateY(-1px);
}

/* ==============================================================
   STAGE 2: LIVING NEURAL DIGITAL TWIN TOPOLOGY (INTERACTIVE GRAPH)
   ============================================================== */
.twin-topology-block {
  background: rgba(11, 16, 24, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--twin-border);
  border-radius: 24px;
  padding: 32px 28px;
  margin-bottom: 36px;
  position: relative;
  overflow: hidden;
}

.twin-block-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 16px;
}
.twin-block-kicker {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--twin-mint-neon);
  margin-bottom: 6px;
}
.twin-block-title {
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  margin: 0;
  color: #ffffff;
}
.twin-block-desc {
  font-size: 0.88rem;
  color: var(--twin-text-secondary);
  margin: 4px 0 0;
  max-width: 640px;
}
.twin-block-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}
.twin-btn-action {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: #cbd5e1;
  padding: 7px 14px;
  border-radius: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s ease;
}
.twin-btn-action:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff;
}

/* TOPOLOGY CANVAS CONTAINER */
.twin-graph-viewport {
  position: relative;
  width: 100%;
  height: 480px;
  background: radial-gradient(circle at 50% 50%, rgba(16, 185, 129, 0.06) 0%, rgba(8, 12, 18, 0.95) 75%);
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  overflow: hidden;
  user-select: none;
}
.twin-svg-wires {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

/* WIRE STYLES */
.twin-wire-path {
  fill: none;
  stroke: rgba(148, 163, 184, 0.22);
  stroke-width: 2;
  transition: stroke 0.3s ease, stroke-width 0.3s ease;
}
.twin-wire-path.active {
  stroke: var(--twin-mint-neon);
  stroke-width: 3;
  filter: drop-shadow(0 0 6px var(--twin-mint));
}
.twin-wire-pulse {
  fill: none;
  stroke: var(--twin-mint-neon);
  stroke-width: 2.5;
  stroke-dasharray: 6 18;
  animation: twinDashPulse 1.8s linear infinite;
  opacity: 0.85;
}
@keyframes twinDashPulse {
  from { stroke-dashoffset: 48; }
  to { stroke-dashoffset: 0; }
}

/* NODES */
.twin-node {
  position: absolute;
  transform: translate(-50%, -50%);
  z-index: 2;
  cursor: grab;
  transition: transform 0.1s ease-out, box-shadow 0.2s ease;
}
.twin-node:active {
  cursor: grabbing;
}
.twin-node-inner {
  background: rgba(16, 23, 34, 0.94);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  padding: 10px 14px;
  min-width: 130px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}
.twin-node:hover .twin-node-inner,
.twin-node.selected .twin-node-inner {
  border-color: var(--twin-mint);
  transform: scale(1.05);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.7), 0 0 20px rgba(16, 185, 129, 0.35);
}
.twin-node-header {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.72rem;
  color: var(--twin-text-secondary);
  font-weight: 600;
  text-transform: uppercase;
  margin-bottom: 4px;
}
.twin-node-val {
  font-size: 1.05rem;
  font-weight: 800;
  color: #ffffff;
  font-family: var(--twin-mono);
}
.twin-node-sub {
  font-size: 0.72rem;
  color: var(--twin-mint-neon);
  font-weight: 600;
}

/* CENTER CORE NODE */
.twin-core-node {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 3;
  cursor: pointer;
}
.twin-core-badge {
  background: radial-gradient(circle at 50% 50%, #064e3b 0%, #022c22 100%);
  border: 2px solid var(--twin-mint);
  border-radius: 999px;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: 0 0 35px rgba(16, 185, 129, 0.5), inset 0 0 15px rgba(0, 255, 157, 0.3);
  transition: all 0.3s ease;
}
.twin-core-badge:hover {
  transform: scale(1.06);
  box-shadow: 0 0 50px rgba(16, 185, 129, 0.8);
}
.twin-core-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--twin-mint);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #022c22;
  box-shadow: 0 0 12px var(--twin-mint-neon);
}
.twin-core-text {
  display: flex;
  flex-direction: column;
}
.twin-core-title {
  font-size: 0.95rem;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: 0.04em;
}
.twin-core-status {
  font-size: 0.72rem;
  color: var(--twin-mint-neon);
  font-weight: 600;
}

/* WIRE BADGES (DELTA PILLS ON PATHS) */
.twin-wire-badge {
  position: absolute;
  transform: translate(-50%, -50%);
  background: #022c22;
  border: 1px solid var(--twin-mint);
  color: var(--twin-mint-neon);
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 700;
  font-family: var(--twin-mono);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.6);
  z-index: 2;
  pointer-events: none;
}

/* FLOATING INSPECTOR CARD (ELOQWNT STYLE) */
.twin-inspector-float {
  position: absolute;
  top: 20px;
  left: 20px;
  width: 250px;
  background: rgba(14, 20, 30, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 16px;
  padding: 16px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6);
  z-index: 4;
  transition: all 0.3s ease;
}
.twin-insp-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--twin-text-secondary);
  text-transform: uppercase;
}
.twin-insp-live {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--twin-mint-neon);
  font-size: 0.68rem;
}
.twin-insp-title {
  font-size: 0.88rem;
  font-weight: 700;
  color: #ffffff;
  margin: 0 0 2px;
}
.twin-insp-val {
  font-size: 1.5rem;
  font-weight: 800;
  color: #ffffff;
  font-family: var(--twin-mono);
  margin-bottom: 8px;
}
.twin-insp-sparkline {
  width: 100%;
  height: 52px;
  margin-bottom: 12px;
}
.twin-ripple-title {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: #64748b;
  text-transform: uppercase;
  margin-bottom: 6px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 8px;
}
.twin-ripple-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  margin-bottom: 4px;
}
.twin-ripple-lbl { color: var(--twin-text-secondary); }
.twin-ripple-val { font-weight: 700; font-family: var(--twin-mono); }
.twin-ripple-val.pos { color: var(--twin-mint-neon); }
.twin-ripple-val.neg { color: #f87171; }

/* ==============================================================
   STAGE 3: INTERACTIVE ROTARY DIAL SCENARIO SIMULATOR
   ============================================================== */
.twin-dial-simulator-block {
  background: rgba(14, 20, 30, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--twin-border);
  border-radius: 24px;
  padding: 36px 32px;
  margin-bottom: 36px;
}

.twin-sim-grid {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 36px;
  align-items: center;
}
@media (max-width: 992px) {
  .twin-sim-grid { grid-template-columns: 1fr; }
}

/* ROTARY DIAL CARD */
.twin-dial-card {
  background: rgba(20, 29, 43, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  padding: 24px;
  text-align: center;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
}
.twin-segmented-tabs {
  display: inline-flex;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 999px;
  padding: 4px;
  margin-bottom: 24px;
}
.twin-seg-btn {
  background: transparent;
  border: none;
  outline: none;
  color: #94a3b8;
  font-family: var(--twin-font);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.2s ease;
}
.twin-seg-btn.active {
  background: rgba(16, 185, 129, 0.25);
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

/* ROTARY DIAL GAUGE */
.twin-rotary-gauge-wrap {
  position: relative;
  width: 220px;
  height: 220px;
  margin: 0 auto 18px;
  cursor: grab;
  user-select: none;
}
.twin-rotary-gauge-wrap:active {
  cursor: grabbing;
}
.twin-dial-center-readout {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  pointer-events: none;
}
.twin-dial-sub-lbl {
  font-size: 0.7rem;
  color: var(--twin-text-muted);
  text-transform: uppercase;
  font-weight: 700;
}
.twin-dial-delta-val {
  font-size: 2.2rem;
  font-weight: 800;
  color: #ffffff;
  font-family: var(--twin-mono);
  line-height: 1.1;
}
.twin-dial-range-hint {
  font-size: 0.74rem;
  color: var(--twin-text-secondary);
}

.twin-dial-meta-chips {
  display: flex;
  justify-content: space-around;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}
.twin-dial-chip {
  font-size: 0.74rem;
  color: var(--twin-text-secondary);
}
.twin-dial-chip strong {
  display: block;
  font-family: var(--twin-mono);
  font-size: 0.85rem;
  color: #ffffff;
  margin-top: 2px;
}

/* RIGHT: SIMULATION TELEMETRY & KPIS */
.twin-sim-telemetry {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.twin-kpi-triad {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
@media (max-width: 640px) {
  .twin-kpi-triad { grid-template-columns: 1fr; }
}

.twin-kpi-card {
  background: rgba(22, 32, 48, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  padding: 18px 20px;
  transition: all 0.25s ease;
}
.twin-kpi-card.hero-kpi {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.25) 0%, rgba(5, 150, 105, 0.12) 100%);
  border-color: rgba(16, 185, 129, 0.4);
}
.twin-kpi-lbl {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--twin-text-secondary);
  margin-bottom: 6px;
}
.twin-kpi-val {
  font-size: 1.8rem;
  font-weight: 800;
  color: #ffffff;
  font-family: var(--twin-mono);
  line-height: 1.15;
  margin-bottom: 6px;
}
.twin-kpi-card.hero-kpi .twin-kpi-val {
  color: var(--twin-mint-neon);
}
.twin-kpi-sub {
  font-size: 0.72rem;
  color: var(--twin-text-muted);
}

/* PROJECTION CONE CHART */
.twin-chart-card {
  background: rgba(20, 29, 43, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  padding: 20px;
}
.twin-chart-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}
.twin-chart-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: #ffffff;
}
.twin-chart-legend {
  display: flex;
  gap: 14px;
  font-size: 0.72rem;
  color: var(--twin-text-secondary);
}
.twin-legend-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 4px;
}
.twin-legend-dot.baseline { background: #64748b; }
.twin-legend-dot.scenario { background: var(--twin-mint-neon); }

.twin-cone-canvas {
  width: 100%;
  height: 140px;
  display: block;
}

/* AI RISK BANNER */
.twin-risk-alert-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.35);
  border-radius: 12px;
  padding: 10px 16px;
  font-size: 0.8rem;
  color: #fde68a;
}
.twin-risk-alert-bar strong {
  color: #f59e0b;
}

/* ==============================================================
   STAGE 4: SCENARIO COMPARISON STUDIO & 3D GLASS LENSES (FRAME 08)
   ============================================================== */
.twin-compare-block {
  background: rgba(14, 20, 30, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--twin-border);
  border-radius: 24px;
  padding: 36px 32px;
  margin-bottom: 36px;
}

/* 3D LENSES VISUAL */
.twin-lenses-stage {
  position: relative;
  width: 220px;
  height: 120px;
  margin: 0 auto 30px;
}
.twin-lens {
  position: absolute;
  width: 110px;
  height: 110px;
  border-radius: 50%;
  top: 5px;
}
.twin-lens.clear-lens {
  left: 30px;
  background: radial-gradient(circle at 35% 35%, rgba(255, 255, 255, 0.35) 0%, rgba(255, 255, 255, 0.05) 70%);
  border: 2px solid rgba(255, 255, 255, 0.4);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), inset 0 0 15px rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(4px);
}
.twin-lens.emerald-lens {
  right: 30px;
  background: radial-gradient(circle at 40% 40%, rgba(0, 255, 157, 0.4) 0%, rgba(5, 150, 105, 0.15) 70%);
  border: 2px solid var(--twin-mint-neon);
  box-shadow: 0 0 30px rgba(16, 185, 129, 0.5), inset 0 0 20px rgba(0, 255, 157, 0.3);
  backdrop-filter: blur(6px);
}

.twin-scenarios-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
@media (max-width: 860px) {
  .twin-scenarios-grid { grid-template-columns: 1fr; }
}

.twin-scenario-card {
  background: rgba(22, 32, 48, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 18px;
  padding: 24px;
  position: relative;
  transition: all 0.25s ease;
}
.twin-scenario-card:hover {
  transform: translateY(-3px);
  border-color: rgba(255, 255, 255, 0.2);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.5);
}
.twin-scenario-card.recommended {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.18) 0%, rgba(6, 78, 59, 0.25) 100%);
  border-color: var(--twin-mint);
  box-shadow: 0 0 30px rgba(16, 185, 129, 0.2);
}
.twin-rec-tag {
  position: absolute;
  top: 16px; right: 16px;
  background: var(--twin-mint-neon);
  color: #07090e;
  font-size: 0.65rem;
  font-weight: 800;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 999px;
  letter-spacing: 0.04em;
}
.twin-scen-code {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--twin-text-muted);
  text-transform: uppercase;
  margin-bottom: 8px;
}
.twin-scen-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: #ffffff;
  margin: 0 0 14px;
  line-height: 1.3;
}
.twin-scen-impact {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--twin-mint-neon);
  font-family: var(--twin-mono);
  margin-bottom: 6px;
}
.twin-scen-desc {
  font-size: 0.8rem;
  color: var(--twin-text-secondary);
  line-height: 1.5;
}

/* ==============================================================
   STAGE 5: AI INTELLIGENCE CHALLENGE MODE (FRAME 09)
   ============================================================== */
.twin-challenge-block {
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.85) 0%, rgba(6, 20, 28, 0.95) 100%);
  border: 1px solid rgba(16, 185, 129, 0.25);
  border-radius: 20px;
  padding: 28px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
  margin-bottom: 36px;
}
.twin-challenge-left {
  max-width: 500px;
}
.twin-challenge-left h3 {
  font-size: 1.3rem;
  font-weight: 800;
  color: #ffffff;
  margin: 0 0 8px;
}
.twin-challenge-left p {
  font-size: 0.85rem;
  color: var(--twin-text-secondary);
  margin: 0;
  line-height: 1.5;
}
.twin-challenge-right {
  display: flex;
  align-items: center;
  gap: 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 12px 20px;
  border-radius: 14px;
}
.twin-range-chip {
  text-align: center;
}
.twin-range-chip span {
  display: block;
  font-size: 0.68rem;
  color: var(--twin-text-muted);
  text-transform: uppercase;
}
.twin-range-chip strong {
  font-size: 1rem;
  font-family: var(--twin-mono);
  color: #ffffff;
}
.twin-range-chip.suggested strong {
  color: var(--twin-mint-neon);
}
.twin-btn-use-range {
  background: var(--twin-mint);
  color: #042f2e;
  border: none;
  padding: 8px 16px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 0.82rem;
  cursor: pointer;
  transition: all 0.2s ease;
}
.twin-btn-use-range:hover {
  background: var(--twin-mint-neon);
  box-shadow: 0 0 15px rgba(0, 255, 157, 0.4);
}

/* ==============================================================
   STAGE 6: MODAL BUILDER (FRAMES 13 & 15)
   ============================================================== */
.twin-modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.twin-modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}
.twin-modal-card {
  background: #0d131d;
  border: 1.5px solid rgba(16, 185, 129, 0.4);
  border-radius: 24px;
  width: 100%;
  max-width: 520px;
  padding: 32px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.8), 0 0 40px rgba(16, 185, 129, 0.2);
  transform: translateY(20px) scale(0.96);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  color: #ffffff;
}
.twin-modal-overlay.active .twin-modal-card {
  transform: translateY(0) scale(1);
}
.twin-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}
.twin-modal-title {
  font-size: 1.3rem;
  font-weight: 800;
  margin: 0;
}
.twin-modal-close {
  background: transparent;
  border: none;
  color: #64748b;
  font-size: 1.3rem;
  cursor: pointer;
}
.twin-modal-close:hover { color: #ffffff; }

.twin-field-group {
  margin-bottom: 18px;
}
.twin-field-lbl {
  display: block;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--twin-text-secondary);
  text-transform: uppercase;
  margin-bottom: 6px;
}
.twin-field-input {
  width: 100%;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 10px;
  padding: 10px 14px;
  color: #ffffff;
  font-family: var(--twin-font);
  font-size: 0.92rem;
  outline: none;
  box-sizing: border-box;
}
.twin-field-input:focus {
  border-color: var(--twin-mint);
  box-shadow: 0 0 10px rgba(16, 185, 129, 0.3);
}

.twin-type-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.twin-type-btn {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 12px 8px;
  text-align: center;
  cursor: pointer;
  color: #cbd5e1;
  transition: all 0.2s ease;
}
.twin-type-btn.active,
.twin-type-btn:hover {
  background: rgba(16, 185, 129, 0.18);
  border-color: var(--twin-mint);
  color: #ffffff;
}
.twin-type-icon { font-size: 1.2rem; margin-bottom: 4px; }
.twin-type-title { font-size: 0.75rem; font-weight: 700; }

.twin-modal-result {
  background: rgba(2, 44, 34, 0.6);
  border: 1px solid var(--twin-mint);
  border-radius: 16px;
  padding: 18px;
  margin-top: 16px;
  display: none;
}
.twin-modal-result.active { display: block; }
.twin-res-metric {
  display: flex;
  justify-content: space-between;
  margin-bottom: 6px;
  font-size: 0.85rem;
}
.twin-res-metric strong { font-family: var(--twin-mono); color: var(--twin-mint-neon); }

/* NAV HIGHLIGHT TAB */
.ws-tab.ws-twin-highlight {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.15) 0%, rgba(6, 78, 59, 0.25) 100%) !important;
  border-color: rgba(16, 185, 129, 0.4) !important;
}
.ws-tab.ws-twin-highlight:hover {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.3) 0%, rgba(6, 78, 59, 0.45) 100%) !important;
  box-shadow: 0 0 16px rgba(16, 185, 129, 0.4);
}


/* SPLIT STAGE: DOCKED INSPECTOR + GRAPH VIEWPORT */
.twin-topology-split-stage {
  display: grid;
  grid-template-columns: 290px 1fr;
  gap: 20px;
  align-items: stretch;
}
@media (max-width: 960px) {
  .twin-topology-split-stage {
    grid-template-columns: 1fr;
  }
}

.twin-inspector-dock {
  background: rgba(14, 20, 30, 0.94);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 18px;
  padding: 22px 20px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.5), inset 0 0 20px rgba(16, 185, 129, 0.05);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.twin-insp-hint {
  font-size: 0.72rem;
  color: #64748b;
  margin-top: 14px;
  padding-top: 10px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  line-height: 1.4;
}

.twin-graph-viewport {
  position: relative;
  width: 100%;
  min-height: 480px;
  background: radial-gradient(circle at 50% 50%, rgba(16, 185, 129, 0.06) 0%, rgba(8, 12, 18, 0.95) 75%);
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  overflow: hidden;
  user-select: none;
}