/* Custom variable setup with a minimalist, luxury black-and-white theme and educational accents */
:root {
  --font-serif: 'Playfair Display', Georgia, serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  --bg-primary: #ffffff;
  --bg-secondary: #f9f9fb;
  --bg-tertiary: #f1f1f4;
  --border-color: #e4e4e7;

  --text-primary: #09090b;
  --text-secondary: #52525b;
  --text-muted: #a1a1aa;

  --accent: #27272a;
  --accent-light: #f4f4f5;
  --accent-hover: #18181b;

  /* Educational warm accents */
  --accent-warm: #1e3a2f; /* Deep Forest Green / Chalkboard Green */
  --accent-highlight: #d97706; /* Warm Ochre Yellow */

  --success: #16a34a;
  --danger: #dc2626;
  --warning: #ca8a04;

  --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

body.dark-theme {
  --bg-primary: #09090b;
  --bg-secondary: #121215;
  --bg-tertiary: #1a1a1e;
  --border-color: #27272a;

  --text-primary: #f4f4f5;
  --text-secondary: #a1a1aa;
  --text-muted: #71717a;

  --accent: #f4f4f5;
  --accent-light: #18181b;
  --accent-hover: #ffffff;

  --accent-warm: #3f6212;
  --accent-highlight: #f59e0b;
}

/* Base resets & layout */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  transition: var(--transition);
}

/* Header */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  background-color: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
  height: 80px;
}

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

.brand-logo {
  height: 60px;
  display: flex;
  align-items: center;
}

.brand-img {
  max-height: 100%;
  width: auto;
  object-fit: contain;
}

body.light-theme .dark-only,
body.dark-theme .light-only {
  display: none;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.05em;
  text-transform: uppercase;
}

.brand-tagline {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-secondary);
}

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

/* Buttons */
.btn {
  padding: 0.5rem 1rem;
  border-radius: 4px;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid var(--border-color);
  background: var(--bg-primary);
  color: var(--text-primary);
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-sm {
  padding: 0.25rem 0.5rem;
  font-size: 0.75rem;
}

.btn-group {
  display: flex;
  gap: 2px;
  background: var(--bg-tertiary);
  padding: 2px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
}

.btn-group .btn {
  border: none;
  background: transparent;
  border-radius: 4px;
}

.btn-group .btn.active {
  background: var(--bg-primary);
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
  font-weight: 600;
}

.btn-primary {
  background: var(--accent);
  color: var(--bg-primary);
  border-color: var(--accent);
}

.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-secondary:hover {
  background: var(--bg-tertiary);
}

.btn-danger {
  background: var(--danger);
  color: white;
  border-color: var(--danger);
}

.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  justify-content: center;
  border-radius: 50%;
}

/* Status Indicator */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.75rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
}

.status-badge.connected {
  border-color: rgba(22, 163, 74, 0.3);
  color: var(--success);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 2px rgba(22, 163, 74, 0.2);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(22, 163, 74, 0.4); }
  70% { transform: scale(1); box-shadow: 0 0 0 5px rgba(22, 163, 74, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(22, 163, 74, 0); }
}

/* Shell Layout */
.app-container {
  display: flex;
  min-height: calc(100vh - 80px);
}

/* Sidebar */
.app-sidebar {
  width: 260px;
  background-color: var(--bg-primary);
  border-right: 1px solid var(--border-color);
  padding: 1.5rem 1rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  flex-shrink: 0;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border-radius: 6px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
}

.nav-item i {
  width: 18px;
  text-align: center;
}

.nav-item:hover {
  background-color: var(--accent-light);
  color: var(--text-primary);
}

.nav-item.active {
  background-color: var(--accent);
  color: var(--bg-primary);
}

.sidebar-footer {
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.version-tag {
  display: inline-block;
  margin-top: 0.25rem;
  background: var(--bg-tertiary);
  padding: 2px 6px;
  border-radius: 4px;
}

/* Content Pane */
.app-content {
  flex-grow: 1;
  padding: 2.5rem;
  max-width: 1200px;
  margin: 0 auto;
}

.tab-pane {
  display: none;
}

.tab-pane.active {
  display: block;
}

.section-header {
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1rem;
}

.section-header h2 {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  margin-bottom: 0.25rem;
}

.section-desc {
  color: var(--text-secondary);
  font-size: 1rem;
}

/* Metrics Grid */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.metric-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1.5rem;
  box-shadow: 0 1px 3px rgba(0,0,0,0.02);
}

.metric-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.metric-title {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
}

.metric-value {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 0.25rem;
}

.metric-change {
  font-size: 0.75rem;
  font-weight: 600;
}

.metric-change.positive { color: var(--success); }
.metric-change.neutral { color: var(--text-muted); }

/* Dashboard Grids */
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.col-span-2 {
  grid-column: span 2;
}

/* Card styles */
.card {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 1px 3px rgba(0,0,0,0.02);
}

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

.card-title {
  font-size: 1.15rem;
  font-weight: 700;
}

.badge {
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-accent {
  background: var(--accent-light);
  color: var(--accent);
}

/* Approval Queue */
.approval-queue {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.approval-item {
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 1.25rem;
  background: var(--bg-secondary);
  transition: var(--transition);
}

.approval-item:hover {
  border-color: var(--text-muted);
}

.approval-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
}

.platform-badge {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 2px 6px;
  border-radius: 3px;
  color: white;
}

.platform-badge.facebook { background: #1877f2; }
.platform-badge.blog { background: #21759b; }

.language-indicator {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--text-muted);
}

.approval-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

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

.media-preview-container {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  margin-bottom: 1rem;
  padding: 0.75rem;
  background: var(--bg-tertiary);
  border-radius: 6px;
}

.img-preview {
  width: 80px;
  height: 80px;
  object-fit: cover;
  border-radius: 4px;
  border: 1px solid var(--border-color);
}

.prompt-hint {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.prompt-hint code {
  display: block;
  margin-top: 0.25rem;
  background: var(--bg-primary);
  padding: 4px;
  border-radius: 3px;
  font-family: monospace;
}

.approval-actions {
  display: flex;
  gap: 0.5rem;
  justify-content: flex-end;
}

/* Schedule List */
.schedule-list {
  list-style: none;
}

.schedule-list li {
  display: flex;
  gap: 1rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border-color);
}

.schedule-list li:last-child {
  border-bottom: none;
}

.schedule-list .time {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
  width: 50px;
}

.activity {
  flex-grow: 1;
}

.activity-title {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
}

.activity-desc {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

/* Info Banner */
.info-banner {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  background: var(--accent-light);
  border-left: 4px solid var(--accent);
}

.banner-icon {
  font-size: 1.5rem;
}

.banner-content h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.banner-content p {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* Agent Panel Grid */
.agent-panel-grid {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: 1.5rem;
}

.agent-selector {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.agent-btn {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem;
  border-radius: 6px;
  border: 1px solid transparent;
  background: transparent;
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: var(--transition);
  text-align: left;
}

.agent-btn:hover {
  background: var(--bg-secondary);
}

.agent-btn.active {
  background: var(--accent-light);
  border-color: var(--border-color);
  color: var(--text-primary);
  font-weight: 600;
}

.agent-detail-card {
  padding: 2rem;
}

.agent-detail-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1rem;
}

.agent-name {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.agent-role-title {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.agent-architecture-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.architecture-block h5 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.architecture-block ul {
  list-style: none;
}

.architecture-block ul li {
  font-size: 0.85rem;
  margin-bottom: 0.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.architecture-block ul li::before {
  content: '•';
  color: var(--text-muted);
}

/* Agent Interactive Sandbox */
.sandbox-section {
  border-top: 1px solid var(--border-color);
  padding-top: 1.5rem;
}

.sandbox-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.sandbox-title {
  font-size: 1rem;
  font-weight: 700;
}

.sandbox-output-block {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 1.25rem;
  position: relative;
  min-height: 150px;
}

.output-loader {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 0.75rem;
  height: 100%;
  color: var(--text-secondary);
}

.output-loader i {
  animation: spin 1s linear infinite;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.simulated-text {
  font-family: var(--font-sans);
  font-size: 0.9rem;
}

/* Workflow Visualizer */
.workflow-visualizer {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  padding: 2rem;
  max-width: 700px;
  margin: 0 auto;
}

.workflow-step {
  display: flex;
  gap: 1.5rem;
  width: 100%;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1.5rem;
  align-items: center;
  transition: var(--transition);
}

.workflow-step:hover {
  transform: translateY(-2px);
  border-color: var(--text-muted);
}

.workflow-step.highlight {
  border-color: var(--accent);
  background: var(--accent-light);
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.step-num {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--bg-primary);
  display: flex;
  justify-content: center;
  align-items: center;
  font-weight: 700;
  flex-shrink: 0;
}

.workflow-step.highlight .step-num {
  background: var(--accent);
}

.step-content {
  flex-grow: 1;
}

.step-content h4 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.step-content p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.step-actor {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
}

.workflow-arrow {
  color: var(--text-muted);
  font-size: 1.25rem;
}

/* Automation Flows */
.tech-stack-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.tech-item {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.tech-logo {
  width: 45px;
  height: 45px;
  border-radius: 8px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 1.25rem;
}

.tech-info strong {
  display: block;
  font-size: 0.9rem;
}

.tech-info p {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.flow-diagram-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1rem;
}

.flow-box {
  border: 1px solid var(--border-color);
  padding: 0.75rem 1.25rem;
  border-radius: 6px;
  background: var(--bg-secondary);
  font-weight: 600;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.flow-box.highlighted-box {
  background: var(--accent);
  color: var(--bg-primary);
  border-color: var(--accent);
}

.flow-line-vertical {
  width: 1px;
  height: 30px;
  background: var(--border-color);
}

.flow-channels {
  display: flex;
  gap: 0.5rem;
}

.channel-box {
  border: 1px solid var(--border-color);
  padding: 0.5rem 1rem;
  border-radius: 4px;
  background: var(--bg-secondary);
  font-size: 0.8rem;
  font-weight: 600;
}

/* Prompt Library */
.prompt-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.prompt-card {
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: var(--bg-primary);
  box-shadow: 0 1px 3px rgba(0,0,0,0.02);
  overflow: hidden;
}

.prompt-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
}

.prompt-agent-title {
  font-size: 1.1rem;
  font-weight: 700;
}

.prompt-card-body {
  padding: 1.5rem;
}

.prompt-card-body pre {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: 1rem;
  border-radius: 6px;
  font-family: monospace;
  font-size: 0.8rem;
  white-space: pre-wrap;
  word-break: break-all;
  max-height: 250px;
  overflow-y: auto;
}

/* Database Schema Panel */
.database-schema-layout {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: 1.5rem;
}

.schema-tabs {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.schema-tab-btn {
  display: block;
  width: 100%;
  padding: 0.75rem;
  border-radius: 6px;
  border: 1px solid transparent;
  background: transparent;
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 0.9rem;
  text-align: left;
  transition: var(--transition);
}

.schema-tab-btn:hover {
  background: var(--bg-secondary);
}

.schema-tab-btn.active {
  background: var(--accent-light);
  border-color: var(--border-color);
  color: var(--text-primary);
  font-weight: 600;
}

.schema-code-pane {
  padding: 1.5rem;
}

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

.code-title {
  font-weight: 700;
  font-size: 1rem;
}

.schema-code-pane pre {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: 1.25rem;
  border-radius: 6px;
  overflow-x: auto;
  font-family: monospace;
  font-size: 0.85rem;
}

/* Timeline */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding: 1rem 0;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 20px;
  width: 1px;
  background: var(--border-color);
}

.timeline-item {
  display: flex;
  gap: 1.5rem;
  position: relative;
}

.timeline-badge {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--bg-primary);
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 1rem;
  z-index: 1;
  flex-shrink: 0;
}

.timeline-panel {
  flex-grow: 1;
  margin-bottom: 0;
}

.timeline-date {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: block;
  margin-bottom: 0.25rem;
}

.timeline-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.timeline-panel p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Responsive Overrides */
@media (max-width: 900px) {
  .app-container {
    flex-direction: column;
  }

  .app-sidebar {
    width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--border-color);
  }

  .dashboard-grid {
    grid-template-columns: 1fr;
  }

  .col-span-2 {
    grid-column: span 1;
  }

  .agent-panel-grid,
  .database-schema-layout {
    grid-template-columns: 1fr;
  }
}