:root {
  --bg-primary: #0a0d14;
  --bg-secondary: #121826;
  --bg-card: rgba(22, 30, 48, 0.75);
  --bg-card-hover: rgba(30, 41, 64, 0.85);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-active: rgba(99, 102, 241, 0.4);

  --accent-child: #06b6d4;      /* Calming Cyan */
  --accent-child-glow: rgba(6, 182, 212, 0.35);
  --accent-parent: #8b5cf6;     /* Thoughtful Violet */
  --accent-parent-glow: rgba(139, 92, 246, 0.35);
  --accent-translation: #38bdf8; /* Translation Blue */
  --accent-translation-glow: rgba(56, 189, 248, 0.35);
  --accent-harmony: #10b981;    /* Co-Regulation Emerald */
  --accent-harmony-glow: rgba(16, 185, 129, 0.4);
  --accent-caution: #f59e0b;    /* Sensory Warning Amber */
  --accent-danger: #ef4444;     /* Overload Alert Coral */

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Outfit', sans-serif;

  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-glow: 0 10px 30px -10px rgba(0, 0, 0, 0.6);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  background-image: 
    radial-gradient(circle at 15% 20%, rgba(6, 182, 212, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 85% 75%, rgba(139, 92, 246, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 50% 50%, rgba(16, 185, 129, 0.04) 0%, transparent 60%);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.5;
}

/* App Header */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.85rem 2rem;
  background: rgba(10, 13, 20, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  position: sticky;
  top: 0;
  z-index: 100;
  flex-wrap: wrap;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.brand-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--accent-child), var(--accent-parent));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 15px var(--accent-child-glow);
  color: white;
  font-size: 1.25rem;
}

.brand-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  background: linear-gradient(90deg, #38bdf8, #c084fc, #34d399);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-subtitle {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Main Navigation Tabs */
.main-nav-tabs {
  display: flex;
  background: rgba(0, 0, 0, 0.35);
  padding: 0.3rem;
  border-radius: 30px;
  border: 1px solid var(--border-subtle);
  gap: 0.35rem;
}

.main-tab-btn {
  padding: 0.45rem 1.1rem;
  border-radius: 20px;
  background: transparent;
  color: var(--text-secondary);
  border: none;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.45rem;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  font-family: inherit;
}

.main-tab-btn:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
}

.main-tab-btn.active {
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.2), rgba(139, 92, 246, 0.25));
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 0 15px rgba(139, 92, 246, 0.2);
}

.main-tab-btn.harmony-active.active {
  background: rgba(16, 185, 129, 0.2);
  border-color: rgba(16, 185, 129, 0.4);
  color: #a7f3d0;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.scenario-pill {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.05);
  padding: 0.4rem 0.9rem;
  border-radius: 30px;
  border: 1px solid var(--border-subtle);
  font-size: 0.85rem;
}

.scenario-pill select {
  background: transparent;
  color: var(--text-primary);
  border: none;
  font-size: 0.85rem;
  font-family: inherit;
  outline: none;
  cursor: pointer;
}

.scenario-pill select option {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.btn-icon {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  padding: 0.4rem 0.85rem;
  border-radius: 20px;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-icon:hover {
  background: rgba(255, 255, 255, 0.12);
  color: var(--text-primary);
}

.btn-icon.active {
  background: var(--accent-child-glow);
  border-color: var(--accent-child);
  color: var(--accent-child);
}

/* Views Management */
.view-panel {
  display: none;
}

.view-panel.active {
  display: block;
}

/* Layout Container for 3D Cube View */
.main-container {
  display: grid;
  grid-template-columns: 1fr 430px;
  gap: 1.5rem;
  padding: 1.5rem 2rem;
  max-width: 1750px;
  margin: 0 auto;
  min-height: calc(100vh - 80px);
}

@media (max-width: 1100px) {
  .main-container {
    grid-template-columns: 1fr;
  }
}

/* 3D Cube Workspace Area */
.cube-workspace {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(20px);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-glow);
}

.workspace-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border-subtle);
  z-index: 10;
}

.facet-nav {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.facet-tab {
  padding: 0.35rem 0.85rem;
  font-size: 0.8rem;
  font-weight: 500;
  border-radius: 20px;
  border: 1px solid var(--border-subtle);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.facet-tab:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-primary);
}

.facet-tab.active {
  background: var(--accent-child-glow);
  border-color: var(--accent-child);
  color: #fff;
  box-shadow: 0 0 12px var(--accent-child-glow);
}

.facet-tab.trans-tab.active {
  background: var(--accent-translation-glow);
  border-color: var(--accent-translation);
}

.facet-tab.parent-tab.active {
  background: var(--accent-parent-glow);
  border-color: var(--accent-parent);
}

.facet-tab.harmony-tab.active {
  background: var(--accent-harmony-glow);
  border-color: var(--accent-harmony);
}

.cube-canvas-wrapper {
  position: relative;
  flex: 1;
  min-height: 480px;
  cursor: grab;
}

.cube-canvas-wrapper:active {
  cursor: grabbing;
}

/* Floating overlay hint */
.canvas-hint {
  position: absolute;
  bottom: 1.25rem;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(10, 13, 20, 0.8);
  backdrop-filter: blur(8px);
  padding: 0.45rem 1rem;
  border-radius: 30px;
  border: 1px solid var(--border-subtle);
  font-size: 0.75rem;
  color: var(--text-secondary);
  pointer-events: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Bottom Fast-Action Bar inside Workspace */
.quick-control-bar {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 1rem;
  padding: 1.25rem;
  background: rgba(10, 13, 20, 0.65);
  border-top: 1px solid var(--border-subtle);
}

@media (max-width: 900px) {
  .quick-control-bar {
    grid-template-columns: 1fr;
  }
}

.quick-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.quick-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  font-weight: 600;
}

/* Interactive Child Squeeze Meter */
.squeeze-interactive {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.pressure-track {
  height: 28px;
  background: rgba(0, 0, 0, 0.4);
  border-radius: 14px;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border-subtle);
}

.pressure-fill {
  height: 100%;
  width: 45%;
  background: linear-gradient(90deg, var(--accent-child), #38bdf8, var(--accent-caution));
  border-radius: 14px;
  transition: width 0.15s ease, background 0.3s ease;
  box-shadow: 0 0 10px var(--accent-child-glow);
}

.pressure-indicator {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: #fff;
  pointer-events: none;
}

.squeeze-btn-group {
  display: flex;
  gap: 0.5rem;
}

.btn-tactile {
  flex: 1;
  padding: 0.45rem;
  background: rgba(6, 182, 212, 0.12);
  border: 1px solid rgba(6, 182, 212, 0.3);
  color: var(--accent-child);
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
}

.btn-tactile:hover {
  background: rgba(6, 182, 212, 0.25);
}

.btn-tactile:active {
  transform: scale(0.96);
  background: var(--accent-child);
  color: #000;
}

/* Translation Showcase Channels */
.translation-showcase-box {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.trans-channel {
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.6rem 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.trans-channel-label {
  font-size: 0.7rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.trans-channel-text {
  font-size: 0.8rem;
  color: #e2e8f0;
  line-height: 1.35;
}

/* Haptic Vibration Waveform Simulator */
.vibration-waveform {
  display: flex;
  align-items: center;
  gap: 4px;
  height: 20px;
  margin-top: 2px;
}

.vibe-bar {
  flex: 1;
  height: 30%;
  background: var(--accent-parent);
  border-radius: 2px;
  transition: height 0.1s ease;
}

.vibe-bar.pulsing {
  animation: vibePulse 0.6s infinite ease-in-out alternate;
}

.vibe-bar:nth-child(2) { animation-delay: 0.1s; }
.vibe-bar:nth-child(3) { animation-delay: 0.2s; }
.vibe-bar:nth-child(4) { animation-delay: 0.3s; }
.vibe-bar:nth-child(5) { animation-delay: 0.4s; }
.vibe-bar:nth-child(6) { animation-delay: 0.5s; }

@keyframes vibePulse {
  0% { height: 20%; background: rgba(139, 92, 246, 0.4); }
  100% { height: 100%; background: #a78bfa; box-shadow: 0 0 6px rgba(167, 139, 250, 0.8); }
}

/* Sidebar Dashboard Panel */
.sidebar-panel {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(20px);
  padding: 1.25rem;
  box-shadow: var(--shadow-glow);
}

.card-title-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.card-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.badge-role {
  font-size: 0.65rem;
  padding: 0.2rem 0.5rem;
  border-radius: 12px;
  font-weight: 600;
  text-transform: uppercase;
}

.badge-child {
  background: rgba(6, 182, 212, 0.15);
  color: var(--accent-child);
  border: 1px solid rgba(6, 182, 212, 0.3);
}

.badge-trans {
  background: rgba(56, 189, 248, 0.15);
  color: var(--accent-translation);
  border: 1px solid rgba(56, 189, 248, 0.3);
}

.badge-parent {
  background: rgba(139, 92, 246, 0.15);
  color: var(--accent-parent);
  border: 1px solid rgba(139, 92, 246, 0.3);
}

.badge-harmony {
  background: rgba(16, 185, 129, 0.15);
  color: var(--accent-harmony);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

/* Parent Text Message Composer */
.parent-composer {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.chat-history {
  max-height: 240px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding-right: 0.25rem;
}

.chat-bubble {
  padding: 0.6rem 0.8rem;
  border-radius: var(--radius-md);
  font-size: 0.8rem;
  max-width: 90%;
  line-height: 1.4;
}

.chat-bubble.child {
  background: rgba(6, 182, 212, 0.12);
  border: 1px solid rgba(6, 182, 212, 0.25);
  align-self: flex-start;
  color: #e0f2fe;
}

.chat-bubble.parent {
  background: rgba(139, 92, 246, 0.15);
  border: 1px solid rgba(139, 92, 246, 0.3);
  align-self: flex-end;
  color: #f3e8ff;
}

.chat-bubble.ai {
  background: rgba(16, 185, 129, 0.12);
  border: 1px dashed rgba(16, 185, 129, 0.4);
  align-self: center;
  font-size: 0.75rem;
  color: #d1fae5;
  text-align: center;
}

.quick-prompts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.btn-chip {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 0.7rem;
  padding: 0.25rem 0.55rem;
  border-radius: 14px;
  cursor: pointer;
  transition: all 0.15s;
}

.btn-chip:hover {
  background: rgba(139, 92, 246, 0.18);
  border-color: var(--accent-parent);
  color: #fff;
}

.parent-input-row {
  display: flex;
  gap: 0.5rem;
}

.parent-input-row input {
  flex: 1;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.75rem;
  color: #fff;
  font-size: 0.8rem;
  outline: none;
  font-family: inherit;
  transition: border-color 0.2s;
}

.parent-input-row input:focus {
  border-color: var(--accent-parent);
  box-shadow: 0 0 8px var(--accent-parent-glow);
}

.btn-send {
  background: var(--accent-parent);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 0 1rem;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-send:hover {
  background: #7c3aed;
  box-shadow: 0 0 10px var(--accent-parent-glow);
}

/* Quick Harmony Banner Card */
.harmony-callout-card {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.12), rgba(6, 182, 212, 0.08));
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.harmony-callout-card h3 {
  font-size: 0.95rem;
  color: #a7f3d0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-open-harmony-tab {
  padding: 0.6rem 1rem;
  background: var(--accent-harmony);
  color: #064e3b;
  border: none;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 0.8rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  transition: all 0.2s;
}

.btn-open-harmony-tab:hover {
  background: #34d399;
  transform: translateY(-1px);
}

/* --------------------------------------------------------
   DEDICATED HARMONY & CLINICIAN NEGOTIATION VIEW (TAB 2)
-------------------------------------------------------- */
.harmony-dedicated-view {
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.harmony-header-hero {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.15), rgba(6, 182, 212, 0.1), rgba(139, 92, 246, 0.12));
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: var(--radius-lg);
  padding: 2rem;
  position: relative;
  overflow: hidden;
}

.harmony-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(16, 185, 129, 0.25);
  border: 1px solid var(--accent-harmony);
  color: #a7f3d0;
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.harmony-hero-title {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 0.5rem;
}

.harmony-hero-desc {
  font-size: 0.95rem;
  color: #cbd5e1;
  max-width: 800px;
  line-height: 1.6;
}

.negotiation-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

@media (max-width: 950px) {
  .negotiation-grid {
    grid-template-columns: 1fr;
  }
}

.tripartite-synthesis-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.input-synthesis-stream {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.synthesis-node {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1rem;
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.node-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.node-child { background: rgba(6, 182, 212, 0.2); border: 1px solid var(--accent-child); }
.node-trans { background: rgba(56, 189, 248, 0.2); border: 1px solid var(--accent-translation); }
.node-parent { background: rgba(139, 92, 246, 0.2); border: 1px solid var(--accent-parent); }
.node-clinician { background: rgba(16, 185, 129, 0.2); border: 1px solid var(--accent-harmony); }

.node-title {
  font-weight: 700;
  font-size: 0.9rem;
  color: #fff;
  margin-bottom: 0.25rem;
}

.node-desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

/* Compromises Interactive Deck */
.compromises-deck {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.compromise-card-lg {
  background: rgba(255, 255, 255, 0.03);
  border: 2px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.compromise-card-lg:hover {
  background: rgba(16, 185, 129, 0.08);
  border-color: rgba(16, 185, 129, 0.4);
  transform: translateY(-2px);
}

.compromise-card-lg.selected {
  background: rgba(16, 185, 129, 0.15);
  border-color: var(--accent-harmony);
  box-shadow: 0 0 20px var(--accent-harmony-glow);
}

.compromise-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.compromise-tier-tag {
  font-size: 0.7rem;
  padding: 0.25rem 0.6rem;
  border-radius: 12px;
  font-weight: 700;
  background: rgba(16, 185, 129, 0.2);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.compromise-card-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: #fff;
}

.compromise-card-desc {
  font-size: 0.85rem;
  color: #cbd5e1;
  line-height: 1.45;
}

.compromise-meta-row {
  display: flex;
  gap: 1.5rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 0.6rem;
}

.compromise-meta-item {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  color: #a7f3d0;
  font-weight: 600;
}

.btn-agree-lg {
  width: 100%;
  padding: 1rem;
  background: linear-gradient(135deg, var(--accent-harmony), #059669);
  color: #fff;
  border: none;
  border-radius: var(--radius-md);
  font-size: 1.05rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  box-shadow: 0 6px 20px var(--accent-harmony-glow);
  transition: all 0.2s;
}

.btn-agree-lg:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px var(--accent-harmony-glow);
}

/* --------------------------------------------------------
   ACCESSIBLE INSTRUCTIONS & GUIDE VIEW (TAB 3)
-------------------------------------------------------- */
.instructions-view {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.guide-hero {
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.15), rgba(139, 92, 246, 0.15));
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2rem;
}

.guide-hero h2 {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
}

.guide-hero p {
  font-size: 0.95rem;
  color: #cbd5e1;
  max-width: 800px;
}

/* Plain Language Step Cards */
.accessible-steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}

.step-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  position: relative;
}

.step-number {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-child), var(--accent-parent));
  color: #fff;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
}

.step-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
}

.step-plain-text {
  font-size: 0.9rem;
  color: #cbd5e1;
  line-height: 1.5;
}

.step-action-box {
  background: rgba(255, 255, 255, 0.04);
  border-left: 3px solid var(--accent-child);
  padding: 0.75rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.8rem;
  color: #94a3b8;
}

.step-action-box strong {
  color: #fff;
}

/* Facet Breakdown Matrix */
.facet-guide-matrix {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
}

.facet-guide-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.facet-guide-card.child-border { border-top: 3px solid var(--accent-child); }
.facet-guide-card.trans-border { border-top: 3px solid var(--accent-translation); }
.facet-guide-card.parent-border { border-top: 3px solid var(--accent-parent); }
.facet-guide-card.harmony-border { border-top: 3px solid var(--accent-harmony); }

.facet-guide-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.facet-guide-desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.45;
}

/* Notification Toast */
.harmony-toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: rgba(16, 185, 129, 0.95);
  color: #064e3b;
  font-weight: 700;
  padding: 0.75rem 1.5rem;
  border-radius: 30px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(8px);
  transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  z-index: 1000;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.harmony-toast.visible {
  transform: translateX(-50%) translateY(0);
}