/* ==========================================================================
   Design System - Clean Enterprise Light Theme (Linear / Stripe / Vercel Grade)
   Follows: ak:ui-ux-pro-max standard specifications
   ========================================================================== */

:root, html.light {
  /* Surface Tokens - Crisp, Clean, Modern Light Mode */
  --bg-app: #f8fafc;
  --surface-panel: #ffffff;
  --surface-card: #f1f5f9;
  --surface-subtle: #e2e8f0;
  --surface-hover: #cbd5e1;
  
  /* Border Tokens */
  --border-hairline: #e2e8f0;
  --border-subtle: #cbd5e1;
  --border-focus: #2563eb;

  /* Typography Colors */
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-tertiary: #64748b;
  --text-disabled: #94a3b8;

  /* Functional Palette (Accessible Contrast >= 4.5:1) */
  --brand-primary: #2563eb;
  --brand-hover: #1d4ed8;
  --brand-muted: rgba(37, 99, 235, 0.08);

  --color-success: #16a34a;
  --color-success-bg: #f0fdf4;
  --color-success-border: #bbf7d0;

  --color-danger: #dc2626;
  --color-danger-bg: #fef2f2;
  --color-danger-border: #fecaca;

  --color-warning: #d97706;
  --color-warning-bg: #fffbeb;
  --color-warning-border: #fde68a;

  --color-info: #0284c7;

  /* Typography Specs */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* Radii */
  --radius-xs: 4px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-full: 9999px;

  /* Elevation */
  --shadow-card: 0 1px 3px 0 rgba(0, 0, 0, 0.05), 0 1px 2px -1px rgba(0, 0, 0, 0.03);
  --shadow-dialog: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.06);

  /* Transition Timing */
  --motion-fast: 150ms cubic-bezier(0.16, 1, 0.3, 1);
  --motion-base: 200ms cubic-bezier(0.16, 1, 0.3, 1);
}

html.dark {
  --bg-app: #080c14;
  --surface-panel: #0e1320;
  --surface-card: #131a2c;
  --surface-subtle: #182137;
  --surface-hover: #1e2843;
  --border-hairline: rgba(255, 255, 255, 0.07);
  --border-subtle: rgba(255, 255, 255, 0.12);
  --border-focus: #3b82f6;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-tertiary: #64748b;
  --text-disabled: #475569;
  --brand-primary: #2563eb;
  --brand-hover: #1d4ed8;
  --brand-muted: rgba(37, 99, 235, 0.15);
  --color-success: #10b981;
  --color-success-bg: rgba(16, 185, 129, 0.1);
  --color-success-border: rgba(16, 185, 129, 0.25);
  --color-danger: #ef4444;
  --color-danger-bg: rgba(239, 68, 68, 0.1);
  --color-danger-border: rgba(239, 68, 68, 0.25);
  --color-warning: #f59e0b;
  --color-warning-bg: rgba(245, 158, 11, 0.1);
  --color-warning-border: rgba(245, 158, 11, 0.25);
  --color-info: #06b6d4;
  --shadow-card: 0 1px 3px 0 rgba(0, 0, 0, 0.3), 0 1px 2px -1px rgba(0, 0, 0, 0.3);
  --shadow-dialog: 0 20px 25px -5px rgba(0, 0, 0, 0.6), 0 8px 10px -6px rgba(0, 0, 0, 0.5);
}

/* Base Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  background-color: var(--bg-app);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
}

/* App Shell */
.app-layout {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Top Navigation Bar */
.top-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--border-hairline);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

html.dark .top-nav {
  background-color: rgba(14, 19, 32, 0.88);
}

.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 32px;
  height: 32px;
  background-color: var(--surface-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--brand-primary);
}

.brand-name {
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  display: flex;
  align-items: center;
  gap: 8px;
}

.version-tag {
  font-size: 0.7rem;
  font-family: var(--font-mono);
  font-weight: 500;
  color: var(--text-tertiary);
  background-color: var(--surface-subtle);
  padding: 1px 6px;
  border-radius: var(--radius-xs);
  border: 1px solid var(--border-hairline);
}

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

.nav-toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
}

.system-status-indicator {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background: var(--surface-subtle);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--text-secondary);
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-success);
}

/* Main Workspace Container */
.main-workspace {
  max-width: 1280px;
  margin: 0 auto;
  padding: 24px;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Panels */
.panel {
  background-color: var(--surface-panel);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-md);
  padding: 20px;
  box-shadow: var(--shadow-card);
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.panel-title {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.panel-title-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.panel-link {
  font-size: 0.8rem;
  color: var(--brand-primary);
  text-decoration: none;
  font-weight: 500;
}
.panel-link:hover {
  text-decoration: underline;
}

.panel-badge-ai {
  font-size: 0.7rem;
  font-family: var(--font-mono);
  background: rgba(99, 102, 241, 0.15);
  color: #a5b4fc;
  border: 1px solid rgba(99, 102, 241, 0.3);
  padding: 2px 8px;
  border-radius: var(--radius-full);
}

/* Console Input Bar */
.console-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.input-command-line {
  display: flex;
  align-items: center;
  background-color: var(--surface-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 4px 6px;
  transition: border-color var(--motion-fast);
}

.input-command-line:focus-within {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.2);
}

.command-prefix {
  padding: 0 10px;
  color: var(--text-tertiary);
  display: flex;
  align-items: center;
}

.command-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.92rem;
  padding: 8px 6px;
}
.command-input::placeholder {
  color: var(--text-tertiary);
}

.command-options-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding-top: 4px;
}

.option-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.option-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.select-field {
  background-color: var(--surface-card);
  border: 1px solid var(--border-hairline);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.8rem;
  padding: 5px 10px;
  border-radius: var(--radius-xs);
  outline: none;
  cursor: pointer;
}
.select-field:focus {
  border-color: var(--border-focus);
}

/* Clean Custom Checkbox */
.checkbox-container {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  user-select: none;
}
.checkbox-container input {
  display: none;
}
.checkmark {
  width: 16px;
  height: 16px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  background-color: var(--surface-card);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--motion-fast);
}
.checkbox-container input:checked + .checkmark {
  background-color: var(--brand-primary);
  border-color: var(--brand-primary);
}
.checkbox-container input:checked + .checkmark::after {
  content: "";
  width: 4px;
  height: 8px;
  border: solid white;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
  margin-bottom: 2px;
}
.checkbox-text {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.mono-badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-tertiary);
  background: var(--surface-card);
  border: 1px solid var(--border-hairline);
  padding: 3px 8px;
  border-radius: var(--radius-xs);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  padding: 7px 14px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--motion-fast);
  white-space: nowrap;
}
.btn:active {
  transform: scale(0.98);
}
.btn:focus-visible {
  outline: 2px solid var(--border-focus);
  outline-offset: 1px;
}

.btn-primary {
  background-color: var(--brand-primary);
  color: #fff;
}
.btn-primary:hover {
  background-color: var(--brand-hover);
}

.btn-secondary {
  background-color: var(--surface-card);
  border-color: var(--border-subtle);
  color: var(--text-secondary);
}
.btn-secondary:hover {
  background-color: var(--surface-subtle);
  color: var(--text-primary);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
}
.btn-ghost:hover {
  background-color: var(--surface-subtle);
  color: var(--text-primary);
}

.btn-execute {
  padding: 7px 16px;
  font-weight: 600;
}

.btn-sm {
  font-size: 0.78rem;
  padding: 5px 10px;
}

.btn-spinner {
  width: 14px;
  height: 14px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

/* Pipeline Progress Tracker */
.pipeline-tracker {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--border-hairline);
}

.tracker-steps {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.step-unit {
  display: flex;
  align-items: center;
  gap: 10px;
}

.step-icon-box {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-xs);
  background-color: var(--surface-card);
  border: 1px solid var(--border-hairline);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-tertiary);
  transition: all var(--motion-fast);
}

.step-unit.active .step-icon-box {
  background-color: var(--brand-muted);
  border-color: var(--brand-primary);
  color: var(--brand-primary);
}

.step-unit.completed .step-icon-box {
  background-color: var(--color-success-bg);
  border-color: var(--color-success-border);
  color: var(--color-success);
}

.step-title {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
}
.step-unit.active .step-title {
  color: var(--text-primary);
}

.step-sub {
  font-size: 0.7rem;
  font-family: var(--font-mono);
  color: var(--text-tertiary);
}

.tracker-separator {
  flex: 1;
  height: 1px;
  background-color: var(--border-hairline);
  margin: 0 12px;
}

.live-activity-bar {
  margin-top: 12px;
  padding: 6px 12px;
  background-color: var(--surface-card);
  border-radius: var(--radius-xs);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-info);
  border: 1px solid var(--border-hairline);
}

/* Executive Notice Bar */
.notice-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.84rem;
  margin-bottom: 16px;
}

.notice-success {
  background-color: var(--color-success-bg);
  border: 1px solid var(--color-success-border);
  color: #34d399;
}

.notice-content {
  display: flex;
  align-items: center;
  gap: 8px;
}

.notice-action {
  font-weight: 600;
  color: var(--color-success);
  text-decoration: none;
}
.notice-action:hover {
  text-decoration: underline;
}

/* Executive KPI Grid */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 20px;
}

.kpi-card {
  background-color: var(--surface-panel);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-md);
  padding: 16px 18px;
  box-shadow: var(--shadow-card);
}

.kpi-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.kpi-label {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.kpi-icon-badge {
  width: 24px;
  height: 24px;
  border-radius: var(--radius-xs);
  background-color: var(--surface-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-tertiary);
}
.icon-success { color: var(--color-success); background: var(--color-success-bg); }
.icon-danger { color: var(--color-danger); background: var(--color-danger-bg); }

.kpi-value {
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
  margin-bottom: 4px;
}

.kpi-meta {
  font-size: 0.75rem;
}

.mono-val {
  font-family: var(--font-mono);
  font-size: 1.3rem;
  font-weight: 600;
}

/* 2-Column Analytics Layout */
.analytics-layout {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

.context-author-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-hairline);
  margin-bottom: 12px;
}

.author-avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background-color: var(--surface-subtle);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--brand-primary);
}

.author-meta {
  flex: 1;
}

.author-name {
  font-weight: 600;
  font-size: 0.9rem;
}

.mono-text {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-tertiary);
}

.post-reactions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.reaction-item {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 0.8rem;
  color: var(--text-secondary);
  background-color: var(--surface-card);
  padding: 4px 10px;
  border-radius: var(--radius-xs);
  border: 1px solid var(--border-hairline);
}

.context-body {
  background-color: var(--surface-card);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-sm);
  padding: 14px;
  max-height: 160px;
  overflow-y: auto;
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

.chart-panel .chart-container {
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Intelligence Panel: Pain Points & Topics */
.intelligence-panel {
  margin-bottom: 20px;
}

.executive-summary-block {
  background-color: var(--surface-card);
  border: 1px solid var(--border-hairline);
  border-left: 3px solid var(--brand-primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 12px 16px;
  margin-bottom: 16px;
}

.summary-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--brand-primary);
  margin-bottom: 4px;
}

.summary-content {
  font-size: 0.88rem;
  color: var(--text-primary);
  line-height: 1.5;
}

.insights-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.column-header {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.clean-bullet-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.clean-bullet-list li {
  background-color: var(--surface-card);
  border: 1px solid var(--border-hairline);
  border-left: 2px solid var(--color-danger);
  padding: 8px 12px;
  border-radius: 0 var(--radius-xs) var(--radius-xs) 0;
  font-size: 0.84rem;
  color: #fca5a5;
  line-height: 1.4;
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  background-color: var(--surface-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 500;
}

/* Data Explorer & Feed */
.explorer-panel {
  padding: 16px 20px;
}

.explorer-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border-hairline);
  margin-bottom: 14px;
}

.segment-control {
  display: flex;
  background-color: var(--surface-card);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-sm);
  padding: 2px;
  gap: 2px;
}

.segment-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: var(--radius-xs);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all var(--motion-fast);
}
.segment-btn.active {
  background-color: var(--surface-subtle);
  color: var(--text-primary);
  font-weight: 600;
}

.counter-badge {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  background: rgba(255, 255, 255, 0.08);
  padding: 1px 6px;
  border-radius: var(--radius-full);
}
.counter-success { color: var(--color-success); background: var(--color-success-bg); }
.counter-danger { color: var(--color-danger); background: var(--color-danger-bg); }

.search-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  flex: 1;
  max-width: 320px;
}

.search-icon {
  position: absolute;
  left: 10px;
  color: var(--text-tertiary);
  pointer-events: none;
}

.search-input {
  width: 100%;
  background-color: var(--surface-card);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-sm);
  padding: 6px 10px 6px 32px;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.82rem;
  outline: none;
  transition: border-color var(--motion-fast);
}
.search-input:focus {
  border-color: var(--border-focus);
}

.feed-container {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 560px;
  overflow-y: auto;
  padding-right: 4px;
}

.feed-item {
  background-color: var(--surface-card);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  transition: background-color var(--motion-fast);
}
.feed-item:hover {
  background-color: var(--surface-hover);
}

.feed-item-spam {
  border-left: 3px solid var(--color-danger);
}
.feed-item-clean {
  border-left: 3px solid var(--color-success);
}

.feed-item-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}

.feed-user-info {
  display: flex;
  align-items: center;
  gap: 8px;
}

.feed-avatar {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background-color: var(--surface-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.feed-user-name {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-primary);
}

.feed-badges {
  display: flex;
  align-items: center;
  gap: 6px;
}

.badge {
  font-size: 0.7rem;
  font-weight: 500;
  padding: 2px 8px;
  border-radius: var(--radius-xs);
  display: inline-flex;
  align-items: center;
}

.badge-clean { background: var(--color-success-bg); color: #34d399; border: 1px solid var(--color-success-border); }
.badge-spam { background: var(--color-danger-bg); color: #f87171; border: 1px solid var(--color-danger-border); }
.badge-neutral { background: var(--surface-subtle); color: var(--text-secondary); border: 1px solid var(--border-hairline); }

.feed-content {
  font-size: 0.86rem;
  line-height: 1.5;
  color: var(--text-primary);
  margin-bottom: 6px;
  word-break: break-word;
}

.feed-pain-point {
  font-size: 0.78rem;
  color: #fca5a5;
  background: rgba(239, 68, 68, 0.08);
  padding: 4px 8px;
  border-radius: var(--radius-xs);
  margin-bottom: 6px;
  display: inline-block;
}

.feed-footer {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.72rem;
  font-family: var(--font-mono);
  color: var(--text-tertiary);
}

/* Modal Drawer */
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 100;
  background-color: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-dialog {
  background-color: var(--surface-panel);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 680px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-dialog);
}

.dialog-header {
  padding: 18px 24px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-hairline);
}

.dialog-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
}

.dialog-subtitle {
  font-size: 0.78rem;
  color: var(--text-secondary);
  margin-top: 2px;
}

.btn-icon-close {
  background: transparent;
  border: none;
  font-size: 1.5rem;
  color: var(--text-tertiary);
  cursor: pointer;
  line-height: 1;
}
.btn-icon-close:hover {
  color: var(--text-primary);
}

.dialog-body {
  padding: 20px 24px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.config-section {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.section-label-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border-hairline);
}

.section-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-primary);
}

.section-badge {
  font-size: 0.68rem;
  font-family: var(--font-mono);
  background: var(--brand-muted);
  color: var(--brand-primary);
  padding: 1px 6px;
  border-radius: var(--radius-xs);
}
.badge-opt {
  background: var(--surface-card);
  color: var(--text-tertiary);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.field-label {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.field-help {
  font-size: 0.7rem;
  color: var(--text-tertiary);
}

.text-input, .textarea-input {
  background-color: var(--surface-card);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-xs);
  padding: 8px 10px;
  color: var(--text-primary);
  font-size: 0.84rem;
  outline: none;
  transition: border-color var(--motion-fast);
}
.text-input:focus, .textarea-input:focus {
  border-color: var(--border-focus);
}

.mono-font {
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.grid-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.dialog-footer {
  padding: 14px 24px;
  border-top: 1px solid var(--border-hairline);
  display: flex;
  justify-content: flex-end;
}

/* Utilities */
.hidden { display: none !important; }
.text-success { color: var(--color-success) !important; }
.text-danger { color: var(--color-danger) !important; }
.text-muted { color: var(--text-secondary) !important; }

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

/* ==========================================================================
   Responsive Mobile-First Optimization (Tối ưu hoá hoàn hảo trên Mobile)
   ========================================================================== */

@media (max-width: 1024px) {
  .kpi-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .analytics-layout {
    grid-template-columns: 1fr;
  }
  .insights-columns {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .top-nav {
    padding: 10px 14px;
  }
  .nav-container {
    flex-wrap: wrap;
    gap: 8px;
  }
  .brand-group {
    gap: 8px;
  }
  .brand-mark {
    width: 28px;
    height: 28px;
  }
  .brand-name {
    font-size: 0.88rem;
  }
  .brand-subtitle {
    display: none !important;
  }
  .nav-toolbar {
    gap: 6px;
    margin-left: auto;
  }
  .nav-toolbar .btn {
    padding: 5px 8px;
    font-size: 0.72rem;
  }
  #btnHeaderLarkLink span {
    display: inline;
  }
  #systemStatusPill {
    padding: 3px 6px;
  }
  #systemStatusText {
    display: none;
  }
  .main-workspace {
    padding: 14px 10px;
    gap: 14px;
  }
  .panel {
    padding: 14px 12px;
  }
}

@media (max-width: 640px) {
  /* Input Console Mobile App Layout */
  .input-command-line {
    flex-direction: column;
    align-items: stretch;
    background: transparent;
    border: none;
    padding: 0;
    gap: 10px;
  }
  .input-command-line .command-prefix {
    display: none;
  }
  .input-command-line .command-input {
    background: var(--surface-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    padding: 12px 14px;
    font-size: 0.88rem;
    width: 100%;
    box-shadow: 0 1px 2px rgba(0,0,0,0.03);
  }
  .input-command-line .btn-execute {
    width: 100%;
    min-height: 46px;
    font-size: 0.92rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    justify-content: center;
    box-shadow: 0 2px 4px rgba(37, 99, 235, 0.2);
  }

  .command-options-bar {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    padding-top: 8px;
  }
  .option-item {
    width: 100%;
    justify-content: space-between;
  }
  .select-field {
    flex: 1;
    max-width: 180px;
  }

  /* Tracker Steps */
  .pipeline-tracker {
    padding: 12px;
  }
  .tracker-steps {
    display: flex;
    flex-direction: column;
    gap: 8px;
    width: 100%;
  }
  .tracker-separator {
    display: none;
  }
  .step-unit {
    width: 100%;
    padding: 8px 10px;
    background: var(--surface-subtle);
    border-radius: var(--radius-xs);
  }

  /* KPI Grid: 2 Cột Gọn Gàng */
  .kpi-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 8px;
  }
  .kpi-card {
    padding: 12px 10px;
  }
  .kpi-header {
    margin-bottom: 6px;
  }
  .kpi-label {
    font-size: 0.72rem;
  }
  .kpi-value {
    font-size: 1.35rem;
  }
  .kpi-meta {
    font-size: 0.68rem;
  }

  /* Feed Controls */
  .feed-controls {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }
  .feed-tabs {
    display: flex;
    width: 100%;
    background: var(--surface-card);
    padding: 3px;
    border-radius: var(--radius-sm);
  }
  .segment-btn {
    flex: 1;
    justify-content: center;
    padding: 7px 4px;
    font-size: 0.74rem;
  }
  .feed-actions {
    flex-direction: column;
    width: 100%;
    gap: 8px;
  }
  .search-box {
    width: 100%;
  }
  .search-input {
    width: 100%;
  }
  #btnExportCsv {
    width: 100%;
    justify-content: center;
    padding: 9px;
  }

  /* Feed Items */
  .feed-item {
    padding: 12px;
  }
  .feed-content {
    font-size: 0.85rem;
  }

  /* Modals on Mobile */
  .modal-backdrop {
    padding: 10px;
    align-items: flex-end;
  }
  .modal-dialog {
    max-width: 100% !important;
    width: 100% !important;
    max-height: 90vh;
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
  }
  .dialog-header {
    padding: 14px 16px;
  }
  .dialog-body {
    padding: 14px 16px;
    gap: 14px;
  }
  .dialog-footer {
    padding: 12px 16px;
  }
  .grid-2col {
    grid-template-columns: 1fr;
  }
  .user-table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  .user-table {
    min-width: 460px;
  }

  /* Notice Bar on Mobile */
  .notice-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  .notice-action {
    width: 100%;
    text-align: center;
    display: block;
    padding: 6px;
    background: rgba(37, 99, 235, 0.08);
    border-radius: var(--radius-xs);
  }
}

/* App Footer */
.app-footer {
  margin-top: auto;
  border-top: 1px solid var(--border-hairline);
  background-color: var(--surface-panel);
  padding: 18px 24px;
}

.footer-container {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.footer-copyright {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.footer-author-link {
  color: var(--brand-primary);
  font-weight: 600;
  text-decoration: none;
  transition: color var(--motion-fast);
}

.footer-author-link:hover {
  color: var(--brand-hover);
  text-decoration: underline;
}

/* User Management Table & Role Badges */
.user-table-wrap {
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--surface-panel);
}

.user-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.78rem;
}

.user-table th {
  text-align: left;
  padding: 8px 12px;
  background-color: var(--surface-card);
  color: var(--text-secondary);
  font-weight: 600;
  border-bottom: 1px solid var(--border-hairline);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.user-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border-hairline);
  color: var(--text-primary);
  vertical-align: middle;
}

.user-table tr:last-child td {
  border-bottom: none;
}

.user-table tr:hover td {
  background-color: rgba(0, 0, 0, 0.015);
}

html.dark .user-table tr:hover td {
  background-color: rgba(255, 255, 255, 0.02);
}

.role-badge {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 2px 7px;
  border-radius: var(--radius-xs);
  font-size: 0.7rem;
  font-weight: 600;
}

.role-admin {
  background-color: rgba(245, 158, 11, 0.12);
  color: #d97706;
}

.role-member {
  background-color: rgba(37, 99, 235, 0.12);
  color: var(--brand-primary);
}

.role-viewer {
  background-color: rgba(100, 116, 139, 0.12);
  color: var(--text-secondary);
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.72rem;
  font-weight: 500;
}

.status-pill.active {
  color: var(--color-success);
}

.status-pill.inactive {
  color: var(--color-danger);
}