/* Creating xAI/xSI Content for the AI, SI, and Agentic Era - Stylesheet */
:root {
  --bg-primary: #05070d;
  --bg-secondary: #0c101d;
  --bg-tertiary: #131a2e;
  --bg-card: #101627;
  --bg-input: #080c18;
  --border-color: #212c47;
  --border-focus: #00d2ff;

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

  --accent-cyan: #00d2ff;
  --accent-grok: #ff9f1c;
  --accent-blue: #2f80ed;
  --accent-violet: #8b5cf6;
  --accent-emerald: #10b981;
  --accent-rose: #f43f5e;

  --xai-gradient: linear-gradient(135deg, #00d2ff 0%, #2f80ed 50%, #8b5cf6 100%);
  --grok-gradient: linear-gradient(135deg, #ff9f1c 0%, #ff5e3a 100%);

  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

  --sidebar-width: 290px;
  --coach-width: 330px;
  --header-height: 64px;
}

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* App Header */
.app-header {
  height: var(--header-height);
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  padding: 0 1.5rem;
  max-width: 1720px;
  margin: 0 auto;
}

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

.logo-badge {
  background: var(--xai-gradient);
  color: #05070d;
  font-weight: 800;
  font-size: 0.78rem;
  padding: 0.35rem 0.65rem;
  border-radius: 6px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  box-shadow: 0 2px 10px rgba(0, 210, 255, 0.35);
}

.title-group h1 {
  font-size: 1.12rem;
  font-weight: 700;
  color: var(--text-primary);
}

.title-group p {
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.progress-container {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  background: var(--bg-tertiary);
  padding: 0.35rem 0.75rem;
  border-radius: 20px;
  border: 1px solid var(--border-color);
}

.progress-bar-wrap {
  width: 90px;
  height: 6px;
  background-color: var(--bg-input);
  border-radius: 3px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  width: 7%;
  background: var(--xai-gradient);
  transition: width 0.3s ease;
}

.progress-text {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent-cyan);
}

.nav-link-btn {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.85rem;
  padding: 0.4rem 0.85rem;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  background: var(--bg-tertiary);
  transition: all 0.2s ease;
}

.nav-link-btn:hover {
  color: var(--text-primary);
  border-color: var(--accent-cyan);
  background: #19233f;
}

/* Main Layout Grid */
.main-layout {
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr var(--coach-width);
  max-width: 1720px;
  margin: 0 auto;
  min-height: calc(100vh - var(--header-height));
}

/* Sidebar Navigation */
.sidebar-nav {
  background-color: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  padding: 1.25rem 0.75rem;
  overflow-y: auto;
  height: calc(100vh - var(--header-height));
  position: sticky;
  top: var(--header-height);
}

.nav-section-title {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  padding: 0 0.65rem 0.5rem;
  font-weight: 700;
}

.step-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.step-nav-item {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.55rem 0.65rem;
  border-radius: 6px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.84rem;
  cursor: pointer;
  transition: all 0.2s ease;
  border: 1px solid transparent;
}

.step-nav-item:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

.step-nav-item.active {
  background: rgba(0, 210, 255, 0.12);
  color: var(--accent-cyan);
  border-color: rgba(0, 210, 255, 0.35);
  font-weight: 600;
}

.step-nav-item.completed {
  color: var(--accent-emerald);
}

.nav-item-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background-color: var(--bg-tertiary);
  font-size: 0.72rem;
  font-weight: 700;
  flex-shrink: 0;
}

.step-nav-item.active .nav-item-num {
  background-color: var(--accent-cyan);
  color: #05070d;
}

.step-nav-item.completed .nav-item-num {
  background-color: var(--accent-emerald);
  color: #05070d;
}

.nav-item-text {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Content Area */
.content-area {
  padding: 2rem 2.5rem;
  overflow-y: auto;
}

.step-card {
  display: none;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2.25rem;
  margin-bottom: 2rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
}

.step-card.active {
  display: block;
  animation: fadeIn 0.25s ease forwards;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

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

.stage-badge {
  background: rgba(0, 210, 255, 0.15);
  color: var(--accent-cyan);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.65rem;
  border-radius: 4px;
  border: 1px solid rgba(0, 210, 255, 0.3);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.epistemic-badge {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  letter-spacing: 0.04em;
}

.epistemic-badge.established {
  background: rgba(16, 185, 129, 0.15);
  color: var(--accent-emerald);
  border: 1px solid rgba(16, 185, 129, 0.35);
}

.epistemic-badge.evidence {
  background: rgba(47, 128, 237, 0.15);
  color: var(--accent-blue);
  border: 1px solid rgba(47, 128, 237, 0.35);
}

.epistemic-badge.emerging {
  background: rgba(255, 159, 28, 0.15);
  color: var(--accent-grok);
  border: 1px solid rgba(255, 159, 28, 0.35);
}

.epistemic-badge.speculation {
  background: rgba(139, 92, 246, 0.15);
  color: var(--accent-violet);
  border: 1px solid rgba(139, 92, 246, 0.35);
}

.step-card h2 {
  font-size: 1.65rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  line-height: 1.3;
}

.step-subtitle {
  font-size: 1rem;
  color: var(--accent-cyan);
  margin-bottom: 1.5rem;
  font-weight: 500;
}

.card-intro-box {
  background: var(--bg-tertiary);
  border-left: 4px solid var(--accent-cyan);
  padding: 1.25rem 1.5rem;
  border-radius: 0 8px 8px 0;
  margin-bottom: 1.75rem;
  font-size: 0.95rem;
  color: #cbd5e1;
}

.content-block {
  margin-bottom: 2rem;
}

.content-block h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.85rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.content-block p {
  color: var(--text-secondary);
  font-size: 0.94rem;
  line-height: 1.7;
  margin-bottom: 1rem;
}

.content-block ul, .content-block ol {
  padding-left: 1.5rem;
  margin-bottom: 1.25rem;
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.65;
}

.content-block li {
  margin-bottom: 0.5rem;
}

.highlight-box {
  background: rgba(16, 22, 39, 0.7);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1.25rem;
  margin: 1.25rem 0;
}

.highlight-box.grok {
  border-color: rgba(255, 159, 28, 0.4);
  background: rgba(255, 159, 28, 0.05);
}

.highlight-box.alert {
  border-color: rgba(244, 63, 94, 0.4);
  background: rgba(244, 63, 94, 0.06);
}

.grid-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin: 1.25rem 0;
}

.grid-3col {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 1.25rem;
  margin: 1.25rem 0;
}

.feature-box {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1.25rem;
}

.feature-box h4 {
  font-size: 0.95rem;
  color: var(--accent-cyan);
  margin-bottom: 0.5rem;
}

.feature-box p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 0;
}

/* Multi-OS Terminal Card */
.os-terminal-container {
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  margin: 1.5rem 0;
  overflow: hidden;
}

.terminal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: var(--bg-tertiary);
  padding: 0.5rem 1rem;
  border-bottom: 1px solid var(--border-color);
}

.terminal-dots {
  display: flex;
  gap: 6px;
}

.terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.dot-red { background: #ef4444; }
.dot-yellow { background: #f59e0b; }
.dot-green { background: #10b981; }

.os-switcher {
  display: flex;
  gap: 0.35rem;
}

.os-btn {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 0.72rem;
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.os-btn:hover {
  color: var(--text-primary);
  border-color: var(--text-muted);
}

.os-btn.active {
  background: var(--accent-cyan);
  color: #05070d;
  border-color: var(--accent-cyan);
  font-weight: 700;
}

.terminal-card {
  display: none;
  padding: 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.84rem;
  color: #e2e8f0;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-all;
  overflow-x: auto;
}

.terminal-card.active {
  display: block;
}

.code-keyword { color: #f43f5e; font-weight: 600; }
.code-param { color: #38bdf8; }
.code-val { color: #34d399; }
.code-comment { color: #64748b; font-style: italic; }

/* Interactive B3 AI Readiness Score Calculator */
.calculator-card {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 1.5rem;
  margin: 1.5rem 0;
}

.calc-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.75rem;
}

.score-display-box {
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
}

.score-huge {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--accent-cyan);
}

.score-max {
  font-size: 1rem;
  color: var(--text-muted);
}

.tier-badge {
  font-size: 0.78rem;
  font-weight: 700;
  padding: 0.35rem 0.75rem;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.tier-high {
  background: rgba(16, 185, 129, 0.2);
  color: var(--accent-emerald);
  border: 1px solid var(--accent-emerald);
}

.tier-mid {
  background: rgba(255, 159, 28, 0.2);
  color: var(--accent-grok);
  border: 1px solid var(--accent-grok);
}

.tier-low {
  background: rgba(244, 63, 94, 0.2);
  color: var(--accent-rose);
  border: 1px solid var(--accent-rose);
}

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

.slider-group {
  background: var(--bg-card);
  padding: 0.85rem 1rem;
  border-radius: 6px;
  border: 1px solid var(--border-color);
}

.slider-label-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.82rem;
  margin-bottom: 0.4rem;
  font-weight: 600;
}

.slider-val-readout {
  color: var(--accent-cyan);
}

.score-slider {
  width: 100%;
  accent-color: var(--accent-cyan);
  cursor: pointer;
}

/* Capstone Tabs */
.cap-tabs {
  display: flex;
  gap: 0.5rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.5rem;
  margin-bottom: 1.25rem;
  overflow-x: auto;
}

.cap-tab-btn {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 0.8rem;
  padding: 0.45rem 0.85rem;
  border-radius: 6px;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s ease;
}

.cap-tab-btn:hover {
  color: var(--text-primary);
  border-color: var(--text-muted);
}

.cap-tab-btn.active {
  background: var(--xai-gradient);
  color: #05070d;
  font-weight: 700;
  border-color: transparent;
}

.cap-content-view {
  display: none;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1.5rem;
}

.cap-content-view.active {
  display: block;
}

/* Checkpoint Card */
.checkpoint-card {
  background: var(--bg-tertiary);
  border: 1px solid rgba(0, 210, 255, 0.35);
  border-radius: 10px;
  padding: 1.5rem;
  margin-top: 2rem;
}

.checkpoint-header {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 0.85rem;
}

.checkpoint-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--accent-cyan);
  color: #05070d;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 800;
}

.checkpoint-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.checkpoint-prompt {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.verify-input-group {
  display: flex;
  gap: 0.65rem;
}

.verify-input {
  flex: 1;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 0.6rem 0.85rem;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.verify-input:focus {
  outline: none;
  border-color: var(--border-focus);
}

.verify-btn {
  background: var(--accent-cyan);
  color: #05070d;
  font-weight: 700;
  border: none;
  border-radius: 6px;
  padding: 0.6rem 1.25rem;
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 0.85rem;
}

.verify-btn:hover {
  background: #38bdf8;
  transform: translateY(-1px);
}

.feedback-box {
  margin-top: 0.85rem;
  padding: 0.75rem;
  border-radius: 6px;
  font-size: 0.85rem;
  display: none;
}

.feedback-box.success {
  display: block;
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border: 1px solid var(--accent-emerald);
}

.feedback-box.error {
  display: block;
  background: rgba(244, 63, 94, 0.15);
  color: #f87171;
  border: 1px solid var(--accent-rose);
}

/* Card Navigation Footer */
.card-nav-footer {
  display: flex;
  justify-content: space-between;
  margin-top: 2rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-color);
}

.step-nav-btn {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-size: 0.88rem;
  padding: 0.55rem 1.25rem;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.step-nav-btn:hover {
  border-color: var(--accent-cyan);
  background: #19233f;
}

.step-nav-btn.primary {
  background: var(--accent-cyan);
  color: #05070d;
  font-weight: 700;
  border-color: transparent;
}

.step-nav-btn.primary:hover {
  background: #38bdf8;
}

/* Orbit Coach Sidebar */
.coach-sidebar {
  background-color: var(--bg-secondary);
  border-left: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  height: calc(100vh - var(--header-height));
  position: sticky;
  top: var(--header-height);
}

.coach-header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
  background-color: var(--bg-card);
}

.coach-title-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.coach-status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-emerald);
  box-shadow: 0 0 8px rgba(16, 185, 129, 0.6);
}

.coach-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
}

.coach-subtitle {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: 0.15rem;
}

.coach-quick-q {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-input);
}

.quick-q-title {
  font-size: 0.72rem;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.quick-questions-list {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  max-height: 140px;
  overflow-y: auto;
}

.faq-chip {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 0.75rem;
  padding: 0.35rem 0.65rem;
  border-radius: 4px;
  cursor: pointer;
  text-align: left;
  line-height: 1.3;
  transition: all 0.2s ease;
}

.faq-chip:hover {
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
  background: #141e38;
}

.coach-messages {
  flex: 1;
  padding: 1rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.msg-bubble {
  max-width: 88%;
  padding: 0.65rem 0.85rem;
  border-radius: 8px;
  font-size: 0.82rem;
  line-height: 1.5;
}

.msg-bubble.msg-bot {
  align-self: flex-start;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  color: #e2e8f0;
}

.msg-bubble.msg-user {
  align-self: flex-end;
  background: var(--accent-cyan);
  color: #05070d;
  font-weight: 500;
}

.coach-input-wrap {
  padding: 0.85rem 1rem;
  border-top: 1px solid var(--border-color);
  background-color: var(--bg-card);
  display: flex;
  gap: 0.5rem;
}

.coach-input {
  flex: 1;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 0.55rem 0.75rem;
  color: var(--text-primary);
  font-size: 0.82rem;
}

.coach-input:focus {
  outline: none;
  border-color: var(--border-focus);
}

.coach-send-btn {
  background: var(--accent-cyan);
  color: #05070d;
  font-weight: 700;
  border: none;
  border-radius: 6px;
  padding: 0.55rem 0.85rem;
  cursor: pointer;
  font-size: 0.82rem;
}

/* Responsive adjustments */
@media (max-width: 1280px) {
  .main-layout {
    grid-template-columns: 240px 1fr 280px;
  }
}

@media (max-width: 1024px) {
  .main-layout {
    grid-template-columns: 220px 1fr;
  }
  .coach-sidebar {
    display: none;
  }
}

@media (max-width: 768px) {
  .main-layout {
    display: block;
  }
  .sidebar-nav {
    position: static;
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--border-color);
    padding: 0.75rem;
  }
  .step-nav-list {
    flex-direction: row;
    overflow-x: auto;
    padding-bottom: 0.5rem;
  }
  .content-area {
    padding: 1.25rem;
  }
  .grid-2col, .grid-3col, .slider-grid {
    grid-template-columns: 1fr;
  }
}

.styled-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.25rem 0;
  font-size: 0.85rem;
}
.styled-table th {
  background: var(--bg-card);
  padding: 10px 14px;
  text-align: left;
  border: 1px solid var(--border-color);
  font-weight: 700;
  color: var(--text-primary);
}
.styled-table td {
  padding: 10px 14px;
  border: 1px solid var(--border-color);
  vertical-align: top;
  color: var(--text-secondary);
}
.styled-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}


/* Checkpoint Green Checkmark on Menu Items (Right-aligned) */
.nav-item a,
.step-nav-item,
.step-nav-btn,
.nav-item-btn,
.nav-link {
  display: flex !important;
  align-items: center !important;
  justify-content: flex-start !important;
  position: relative !important;
}

.nav-item.completed a::after,
.step-nav-item.completed::after,
.step-nav-btn.completed::after,
.nav-item-btn.completed::after,
.nav-link.completed::after {
  content: " \2713" !important;
  margin-left: auto !important;
  color: #22c55e !important;
  font-weight: 800 !important;
  font-size: 1.15rem !important;
  line-height: 1 !important;
  display: inline-flex !important;
  align-items: center !important;
}