/* ============================================
   Business OS - Design System & Component Library
   ============================================ */

:root {
  --primary: #4F46E5;
  --primary-light: #818CF8;
  --primary-dark: #3730A3;
  --primary-bg: #EEF2FF;
  --secondary: #10B981;
  --secondary-light: #34D399;
  --secondary-dark: #059669;
  --accent: #06B6D4;
  --accent-light: #22D3EE;
  --bg: #F8FAFC;
  --surface: #FFFFFF;
  --surface-hover: #F1F5F9;
  --text: #0F172A;
  --text-secondary: #475569;
  --text-muted: #94A3B8;
  --border: #E2E8F0;
  --border-light: #F1F5F9;
  --success: #22C55E;
  --warning: #F59E0B;
  --danger: #EF4444;
  --info: #3B82F6;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.1), 0 4px 6px rgba(0,0,0,0.05);
  --shadow-xl: 0 20px 25px rgba(0,0,0,0.1), 0 10px 10px rgba(0,0,0,0.04);
  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-full: 9999px;
  --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --sidebar-width: 260px;
  --sidebar-collapsed: 68px;
  --context-panel-width: 320px;
  --header-height: 64px;
}

/* Dark Mode */
[data-theme="dark"] {
  --bg: #0F172A;
  --surface: #1E293B;
  --surface-hover: #334155;
  --text: #F1F5F9;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  --border: #334155;
  --border-light: #1E293B;
  --primary-bg: #1E1B4B;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
  --shadow: 0 1px 3px rgba(0,0,0,0.4);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.4);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.4);
  --shadow-xl: 0 20px 25px rgba(0,0,0,0.5);
}

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

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

/* Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--text-muted); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-secondary); }

/* Typography */
.h1 { font-size: 40px; font-weight: 700; line-height: 1.2; letter-spacing: -0.02em; }
.h2 { font-size: 32px; font-weight: 700; line-height: 1.25; letter-spacing: -0.01em; }
.h3 { font-size: 24px; font-weight: 600; line-height: 1.3; }
.h4 { font-size: 20px; font-weight: 600; line-height: 1.35; }
.body { font-size: 16px; line-height: 1.6; }
.caption { font-size: 14px; line-height: 1.5; }
.small { font-size: 12px; line-height: 1.5; }

/* === LAYOUT === */
.app-layout {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* Sidebar */
.sidebar {
  width: var(--sidebar-width);
  min-width: var(--sidebar-width);
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  z-index: 40;
  overflow: hidden;
}

.sidebar.collapsed {
  width: var(--sidebar-collapsed);
  min-width: var(--sidebar-collapsed);
}

.sidebar-header {
  height: var(--header-height);
  padding: 0 20px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--border);
  gap: 12px;
}

.sidebar-logo {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 18px;
  color: white;
  flex-shrink: 0;
}

.sidebar-brand {
  font-weight: 700;
  font-size: 18px;
  white-space: nowrap;
}

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
}

.nav-section {
  margin-bottom: 8px;
}

.nav-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  padding: 8px 12px 6px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  position: relative;
  white-space: nowrap;
}

.nav-item:hover {
  background: var(--surface-hover);
  color: var(--text);
}

.nav-item.active {
  background: var(--primary-bg);
  color: var(--primary);
  font-weight: 600;
}

.nav-item.active::before {
  content: '';
  position: absolute;
  left: -12px;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 20px;
  background: var(--primary);
  border-radius: 0 2px 2px 0;
}

.nav-item .icon {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 16px;
}

.nav-item .badge {
  margin-left: auto;
  background: var(--primary-bg);
  color: var(--primary);
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: var(--radius-full);
}

.sidebar.collapsed .nav-label,
.sidebar.collapsed .nav-item span:not(.icon),
.sidebar.collapsed .sidebar-brand,
.sidebar.collapsed .nav-item .badge {
  display: none;
}

.sidebar.collapsed .nav-item {
  justify-content: center;
  padding: 9px;
}

/* Main Content */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-width: 0;
}

/* Header */
.app-header {
  height: var(--header-height);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 24px;
  gap: 16px;
  flex-shrink: 0;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-search {
  flex: 1;
  max-width: 480px;
  position: relative;
}

.header-search input {
  width: 100%;
  padding: 8px 16px 8px 40px;
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  outline: none;
  transition: var(--transition);
}

.header-search input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-bg);
}

.header-search .search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 14px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

/* Content Area */
.content-area {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
}

/* Context Panel */
.context-panel {
  width: var(--context-panel-width);
  min-width: var(--context-panel-width);
  background: var(--surface);
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: var(--transition);
}

.context-panel.hidden {
  width: 0;
  min-width: 0;
  border: none;
  overflow: hidden;
}

.context-panel-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  font-weight: 600;
  font-size: 14px;
}

.context-panel-body {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
}

/* === WORKSPACE SWITCHER === */
.workspace-switcher {
  display: flex;
  background: var(--bg);
  border-radius: var(--radius-full);
  padding: 3px;
  gap: 2px;
}

.workspace-btn {
  padding: 6px 14px;
  border-radius: var(--radius-full);
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}

.workspace-btn:hover {
  color: var(--text);
}

.workspace-btn.active {
  background: var(--surface);
  color: var(--primary);
  box-shadow: var(--shadow-sm);
  font-weight: 600;
}

/* === KPI CARDS === */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.kpi-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  transition: var(--transition);
  cursor: default;
}

.kpi-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--primary-light);
  transform: translateY(-1px);
}

.kpi-card .kpi-label {
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: 4px;
}

.kpi-card .kpi-value {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}

.kpi-card .kpi-change {
  font-size: 13px;
  font-weight: 500;
  margin-top: 4px;
  display: flex;
  align-items: center;
  gap: 4px;
}

.kpi-change.up { color: var(--success); }
.kpi-change.down { color: var(--danger); }

.kpi-card .kpi-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  margin-bottom: 12px;
}

.kpi-icon.indigo { background: var(--primary-bg); color: var(--primary); }
.kpi-icon.emerald { background: #ECFDF5; color: var(--secondary); }
.kpi-icon.cyan { background: #ECFEFF; color: var(--accent); }
.kpi-icon.amber { background: #FFFBEB; color: var(--warning); }
.kpi-icon.red { background: #FEF2F2; color: var(--danger); }
.kpi-icon.blue { background: #EFF6FF; color: var(--info); }

/* === CARDS === */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-body {
  padding: 20px;
}

.card-footer {
  padding: 12px 20px;
  border-top: 1px solid var(--border);
}

/* === BUTTONS === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid transparent;
  text-decoration: none;
  line-height: 1.4;
  white-space: nowrap;
}

.btn:active { transform: scale(0.97); }

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

.btn-primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
}

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

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

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

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border-color: transparent;
}

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

.btn-sm { padding: 5px 10px; font-size: 13px; }
.btn-lg { padding: 12px 24px; font-size: 16px; }
.btn-icon { padding: 8px; width: 36px; height: 36px; }
.btn-icon-sm { padding: 4px; width: 28px; height: 28px; }

/* === BADGES === */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 10px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
  line-height: 1.5;
}

.badge-primary { background: var(--primary-bg); color: var(--primary); }
.badge-success { background: #ECFDF5; color: var(--secondary); }
.badge-warning { background: #FFFBEB; color: var(--warning); }
.badge-danger { background: #FEF2F2; color: var(--danger); }
.badge-info { background: #EFF6FF; color: var(--info); }
.badge-gray { background: var(--surface-hover); color: var(--text-secondary); }

/* === TABLES === */
.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th {
  text-align: left;
  padding: 12px 16px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.data-table td {
  padding: 12px 16px;
  font-size: 14px;
  border-bottom: 1px solid var(--border-light);
  color: var(--text);
}

.data-table tr:hover td {
  background: var(--surface-hover);
}

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

/* === AI CHAT === */
.ai-chat {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: var(--surface);
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.chat-message {
  display: flex;
  gap: 12px;
  max-width: 85%;
  animation: messageSlide 0.3s ease-out;
}

.chat-message.user {
  align-self: flex-end;
  flex-direction: row-reverse;
}

.chat-message.ai {
  align-self: flex-start;
}

.chat-avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 14px;
  flex-shrink: 0;
}

.chat-message.user .chat-avatar {
  background: var(--surface-hover);
  color: var(--text-secondary);
}

.chat-bubble {
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 14px;
  line-height: 1.6;
}

.chat-message.ai .chat-bubble {
  background: var(--bg);
  border: 1px solid var(--border);
}

.chat-message.user .chat-bubble {
  background: var(--primary);
  color: white;
  border-bottom-right-radius: 4px;
}

.chat-message.ai .chat-bubble {
  border-bottom-left-radius: 4px;
}

.chat-input-area {
  padding: 16px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 12px;
  align-items: flex-end;
  background: var(--surface);
}

.chat-input {
  flex: 1;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  outline: none;
  resize: none;
  min-height: 44px;
  max-height: 120px;
  font-family: var(--font-sans);
  transition: var(--transition);
}

.chat-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-bg);
}

.chat-actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

/* === AI INSIGHT CARDS === */
.ai-insight {
  background: linear-gradient(135deg, var(--primary-bg), #ECFEFF);
  border: 1px solid rgba(79, 70, 229, 0.15);
  border-radius: var(--radius);
  padding: 16px;
  transition: var(--transition);
}

.ai-insight:hover {
  box-shadow: var(--shadow-md);
}

.ai-insight .insight-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
}

.ai-insight .insight-text {
  font-size: 14px;
  color: var(--text);
  line-height: 1.6;
}

/* === SUGGESTED PROMPTS === */
.prompt-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  font-size: 13px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.prompt-chip:hover {
  background: var(--primary-bg);
  border-color: var(--primary-light);
  color: var(--primary);
}

/* === VOICE ASSISTANT === */
.voice-btn {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: var(--primary);
  color: white;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  transition: var(--transition);
  box-shadow: 0 4px 14px rgba(79, 70, 229, 0.3);
  position: relative;
}

.voice-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 20px rgba(79, 70, 229, 0.4);
}

.voice-btn.listening {
  background: var(--danger);
  animation: pulse 1.5s infinite;
}

.voice-waveform {
  display: flex;
  align-items: center;
  gap: 2px;
  height: 30px;
}

.voice-waveform .bar {
  width: 3px;
  background: var(--primary);
  border-radius: 2px;
  animation: wave 0.8s ease-in-out infinite;
}

.voice-waveform .bar:nth-child(1) { height: 12px; animation-delay: 0s; }
.voice-waveform .bar:nth-child(2) { height: 20px; animation-delay: 0.1s; }
.voice-waveform .bar:nth-child(3) { height: 28px; animation-delay: 0.2s; }
.voice-waveform .bar:nth-child(4) { height: 24px; animation-delay: 0.3s; }
.voice-waveform .bar:nth-child(5) { height: 16px; animation-delay: 0.4s; }
.voice-waveform .bar:nth-child(6) { height: 26px; animation-delay: 0.5s; }
.voice-waveform .bar:nth-child(7) { height: 18px; animation-delay: 0.6s; }
.voice-waveform .bar:nth-child(8) { height: 22px; animation-delay: 0.7s; }

/* === FLOATING AI ASSISTANT === */
.floating-ai {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 50;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 12px;
}

.floating-ai-btn {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: white;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  box-shadow: 0 6px 24px rgba(79, 70, 229, 0.35);
  transition: var(--transition);
}

.floating-ai-btn:hover {
  transform: scale(1.08);
  box-shadow: 0 8px 30px rgba(79, 70, 229, 0.45);
}

/* === KANBAN === */
.kanban-board {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  padding-bottom: 8px;
}

.kanban-column {
  min-width: 280px;
  max-width: 320px;
  flex: 1;
  background: var(--bg);
  border-radius: var(--radius);
  padding: 12px;
}

.kanban-column-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 4px 12px;
  font-weight: 600;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
}

.kanban-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px;
  margin-bottom: 8px;
  cursor: pointer;
  transition: var(--transition);
}

.kanban-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--primary-light);
}

/* === MODAL === */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
  z-index: 60;
  display: none;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.2s ease-out;
}

.modal-overlay.open {
  display: flex;
}

.modal {
  background: var(--surface);
  border-radius: var(--radius-lg);
  width: 90%;
  max-width: 540px;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  animation: modalSlide 0.25s ease-out;
}

.modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-body {
  padding: 24px;
}

.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

/* === FORMS === */
.form-group {
  margin-bottom: 16px;
}

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  font-family: var(--font-sans);
  outline: none;
  transition: var(--transition);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-bg);
}

.form-textarea {
  resize: vertical;
  min-height: 80px;
}

/* === ANIMATIONS === */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes modalSlide {
  from { opacity: 0; transform: translateY(20px) scale(0.97); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes messageSlide {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.5); }
  50% { box-shadow: 0 0 0 16px rgba(239, 68, 68, 0); }
}

@keyframes wave {
  0%, 100% { transform: scaleY(0.5); }
  50% { transform: scaleY(1); }
}

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(20px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-20px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* === AVATAR === */
.avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: var(--primary-bg);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
  flex-shrink: 0;
}

.avatar-sm { width: 28px; height: 28px; font-size: 11px; }
.avatar-lg { width: 48px; height: 48px; font-size: 18px; }

/* === TABS === */
.tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--border);
  padding: 0 4px;
}

.tab {
  padding: 10px 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: var(--transition);
  background: none;
  border-top: none;
  border-left: none;
  border-right: none;
}

.tab:hover {
  color: var(--text);
}

.tab.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

/* === DROPDOWN === */
.dropdown {
  position: relative;
  display: inline-block;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 4px;
  min-width: 200px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  z-index: 50;
  display: none;
  overflow: hidden;
}

.dropdown-menu.open {
  display: block;
  animation: fadeIn 0.15s ease-out;
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  font-size: 14px;
  color: var(--text);
  cursor: pointer;
  transition: var(--transition);
}

.dropdown-item:hover {
  background: var(--surface-hover);
}

.dropdown-divider {
  height: 1px;
  background: var(--border);
  margin: 4px 0;
}

/* === TIMELINE === */
.timeline {
  position: relative;
  padding-left: 24px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 6px;
  top: 4px;
  bottom: 4px;
  width: 2px;
  background: var(--border);
}

.timeline-item {
  position: relative;
  padding-bottom: 20px;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -20px;
  top: 6px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--primary);
  border: 2px solid var(--surface);
}

.timeline-item .time {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 2px;
}

/* === TOGGLE SWITCH === */
.toggle {
  position: relative;
  width: 44px;
  height: 24px;
  cursor: pointer;
}

.toggle input {
  display: none;
}

.toggle-slider {
  position: absolute;
  inset: 0;
  background: var(--border);
  border-radius: var(--radius-full);
  transition: var(--transition);
}

.toggle-slider::before {
  content: '';
  position: absolute;
  left: 3px;
  top: 3px;
  width: 18px;
  height: 18px;
  background: white;
  border-radius: 50%;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.toggle input:checked + .toggle-slider {
  background: var(--primary);
}

.toggle input:checked + .toggle-slider::before {
  transform: translateX(20px);
}

/* === PROGRESS BAR === */
.progress-bar {
  width: 100%;
  height: 8px;
  background: var(--bg);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-bar .progress-fill {
  height: 100%;
  border-radius: var(--radius-full);
  transition: width 0.5s ease;
}

/* === TOAST === */
.toast-container {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 100;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  padding: 12px 20px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 12px;
  animation: slideInRight 0.3s ease-out;
  font-size: 14px;
  max-width: 360px;
}

.toast.success { border-left: 4px solid var(--success); }
.toast.error { border-left: 4px solid var(--danger); }
.toast.warning { border-left: 4px solid var(--warning); }
.toast.info { border-left: 4px solid var(--info); }

/* === STAT CARD (MINI) === */
.stat {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  background: var(--bg);
  border-radius: var(--radius-sm);
}

.stat .stat-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}

.stat .stat-content .stat-value {
  font-size: 18px;
  font-weight: 700;
}

.stat .stat-content .stat-label {
  font-size: 12px;
  color: var(--text-secondary);
}

/* === EMPTY STATE === */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 48px 24px;
  text-align: center;
}

.empty-state .empty-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius);
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.empty-state h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 4px;
}

.empty-state p {
  font-size: 14px;
  color: var(--text-secondary);
  max-width: 300px;
}

/* === DIVIDER === */
.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 16px 0;
}

/* === TOOLTIP === */
[data-tooltip] {
  position: relative;
}

[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  padding: 4px 10px;
  background: var(--text);
  color: var(--bg);
  font-size: 12px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}

[data-tooltip]:hover::after {
  opacity: 1;
}

/* === RESPONSIVE === */
@media (max-width: 1200px) {
  .context-panel {
    display: none;
  }
}

@media (max-width: 768px) {
  .sidebar {
    position: fixed;
    left: -280px;
    top: 0;
    bottom: 0;
    z-index: 50;
    box-shadow: var(--shadow-xl);
  }

  .sidebar.mobile-open {
    left: 0;
  }

  .sidebar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.4);
    z-index: 45;
    display: none;
  }

  .sidebar-overlay.open { display: block; }

  .app-header {
    padding: 0 12px;
  }

  .content-area {
    padding: 16px;
  }

  .kpi-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .floating-ai {
    bottom: 80px;
    right: 16px;
  }

  .header-search {
    display: none;
  }

  .kanban-board {
    flex-direction: column;
  }

  .kanban-column {
    min-width: 100%;
  }
}

@media (max-width: 480px) {
  .kpi-grid {
    grid-template-columns: 1fr;
  }
}

/* === UTILITY === */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-1 { gap: 4px; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.gap-6 { gap: 24px; }
.mt-1 { margin-top: 4px; }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 12px; }
.mt-4 { margin-top: 16px; }
.mt-6 { margin-top: 24px; }
.mb-1 { margin-bottom: 4px; }
.mb-2 { margin-bottom: 8px; }
.mb-3 { margin-bottom: 12px; }
.mb-4 { margin-bottom: 16px; }
.mb-6 { margin-bottom: 24px; }
.ml-auto { margin-left: auto; }
.mr-auto { margin-right: auto; }
.mx-auto { margin-left: auto; margin-right: auto; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-primary { color: var(--primary); }
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-danger { color: var(--danger); }
.text-info { color: var(--info); }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.w-full { width: 100%; }
.h-full { height: 100%; }
.relative { position: relative; }
.hidden { display: none !important; }
.cursor-pointer { cursor: pointer; }
.select-none { user-select: none; }
.grid { display: grid; }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }
.shrink-0 { flex-shrink: 0; }

/* === AI AGENT CARDS === */
.agent-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  display: flex;
  align-items: center;
  gap: 14px;
  cursor: pointer;
  transition: var(--transition);
}

.agent-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--primary-light);
}

.agent-avatar {
  width: 44px;
  height: 44px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.agent-info .agent-name {
  font-weight: 600;
  font-size: 14px;
}

.agent-info .agent-status {
  font-size: 12px;
  display: flex;
  align-items: center;
  gap: 4px;
}

.agent-status.online { color: var(--success); }
.agent-status.busy { color: var(--warning); }
.agent-status.offline { color: var(--text-muted); }

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.status-dot.online { background: var(--success); }
.status-dot.busy { background: var(--warning); }
.status-dot.offline { background: var(--text-muted); }

/* === COMMAND PALETTE === */
.command-palette {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  backdrop-filter: blur(8px);
  z-index: 70;
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding-top: 120px;
}

.command-palette.open { display: flex; }

.command-palette .command-input-wrapper {
  width: 100%;
  max-width: 600px;
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
}

.command-palette input {
  width: 100%;
  padding: 16px 20px;
  border: none;
  background: transparent;
  color: var(--text);
  font-size: 16px;
  outline: none;
  font-family: var(--font-sans);
}

.command-palette .command-results {
  max-height: 320px;
  overflow-y: auto;
  border-top: 1px solid var(--border);
}

.command-palette .command-item {
  padding: 10px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  transition: var(--transition);
  font-size: 14px;
}

.command-palette .command-item:hover,
.command-palette .command-item.selected {
  background: var(--surface-hover);
}

.command-palette .command-item .cmd-shortcut {
  margin-left: auto;
  font-size: 11px;
  padding: 2px 6px;
  background: var(--bg);
  border-radius: 4px;
  color: var(--text-muted);
}

/* === NOTIFICATION DOT === */
.notif-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--danger);
  position: absolute;
  top: 4px;
  right: 4px;
}

/* === RESPONSIVE GRID === */
.responsive-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
}

/* === SECTION HEADER === */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.section-header h2 {
  font-size: 20px;
  font-weight: 700;
}

/* === BREADCRUMB === */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.breadcrumb a {
  color: var(--text-secondary);
  text-decoration: none;
}

.breadcrumb a:hover {
  color: var(--primary);
}

/* === FILTER BAR === */
.filter-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.filter-bar .filter-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  font-size: 13px;
  cursor: pointer;
  transition: var(--transition);
}

.filter-bar .filter-chip:hover {
  border-color: var(--text-muted);
}

.filter-bar .filter-chip.active {
  background: var(--primary-bg);
  border-color: var(--primary);
  color: var(--primary);
}

/* === MOBILE BOTTOM NAV === */
.mobile-bottom-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 60px;
  background: var(--surface);
  border-top: 1px solid var(--border);
  z-index: 40;
  justify-content: space-around;
  align-items: center;
  padding: 0 8px;
}

.mobile-bottom-nav .nav-item-mobile {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 4px 12px;
  color: var(--text-muted);
  font-size: 10px;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  background: none;
}

.mobile-bottom-nav .nav-item-mobile.active {
  color: var(--primary);
}

.mobile-bottom-nav .nav-item-mobile .icon {
  font-size: 20px;
}

@media (max-width: 768px) {
  .mobile-bottom-nav {
    display: flex;
  }
}