/* ========================================
   Free Model Auto - Admin Panel Styles
   ======================================== */

/* CSS Variables */
:root {
  --primary-color: #4f46e5;
  --primary-hover: #4338ca;
  --secondary-color: #6b7280;
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --danger-color: #ef4444;
  --info-color: #3b82f6;
  
  --bg-primary: #ffffff;
  --bg-secondary: #f9fafb;
  --bg-tertiary: #f3f4f6;
  --bg-sidebar: #1f2937;
  
  --text-primary: #111827;
  --text-secondary: #6b7280;
  --text-light: #9ca3af;
  --text-white: #ffffff;
  
  --border-color: #e5e7eb;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  
  --sidebar-width: 260px;
  --top-bar-height: 64px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  color: var(--text-primary);
  background-color: var(--bg-secondary);
}

/* ========================================
   Login Page
   ======================================== */
.login-page {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-container {
  width: 100%;
  max-width: 420px;
  padding: 20px;
}

.login-box {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 40px;
}

.login-header {
  text-align: center;
  margin-bottom: 32px;
}

.login-header h1 {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.login-header p {
  color: var(--text-secondary);
  font-size: 14px;
}

.login-form .form-group {
  margin-bottom: 20px;
}

.login-form label {
  display: block;
  margin-bottom: 6px;
  font-weight: 500;
  color: var(--text-primary);
}

.login-form input {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 14px;
  transition: all 0.2s;
}

.login-form input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.error-message {
  color: var(--danger-color);
  font-size: 13px;
  margin-bottom: 16px;
  min-height: 20px;
}

.login-footer {
  text-align: center;
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
}

.login-footer p {
  color: var(--text-light);
  font-size: 13px;
}

/* ========================================
   Buttons
   ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
  background-color: var(--primary-hover);
}

.btn-secondary {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--border-color);
}

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

.btn-danger:hover:not(:disabled) {
  background-color: #dc2626;
}

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

.btn-sm {
  padding: 6px 12px;
  font-size: 12px;
}

.btn-block {
  width: 100%;
}

/* Spinner */
.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-right: 8px;
}

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

/* ========================================
   Admin Layout
   ======================================== */
.admin-layout {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: var(--sidebar-width);
  background-color: var(--bg-sidebar);
  color: var(--text-white);
  display: flex;
  flex-direction: column;
  position: fixed;
  height: 100vh;
  left: 0;
  top: 0;
  z-index: 100;
}

.sidebar-header {
  padding: 24px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-header h2 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 4px;
}

.sidebar-header p {
  font-size: 12px;
  color: var(--text-light);
}

.sidebar-nav {
  flex: 1;
  padding: 16px 12px;
  overflow-y: auto;
}

.nav-item {
  display: flex;
  align-items: center;
  padding: 12px 16px;
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  border-radius: var(--radius-md);
  margin-bottom: 4px;
  transition: all 0.2s;
}

.nav-item:hover {
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--text-white);
}

.nav-item.active {
  background-color: var(--primary-color);
  color: var(--text-white);
}

.nav-icon {
  font-size: 18px;
  margin-right: 12px;
  width: 24px;
  text-align: center;
}

.nav-text {
  font-size: 14px;
  font-weight: 500;
}

.sidebar-footer {
  padding: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.user-info {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.user-info span {
  font-size: 14px;
  font-weight: 500;
}

/* Main Content */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  display: flex;
  flex-direction: column;
}

/* Top Bar */
.top-bar {
  height: var(--top-bar-height);
  background-color: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  position: sticky;
  top: 0;
  z-index: 50;
}

.top-bar h1 {
  font-size: 20px;
  font-weight: 600;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
}

.status-badge.connected {
  background-color: rgba(16, 185, 129, 0.1);
  color: var(--success-color);
}

.status-badge.disconnected {
  background-color: rgba(239, 68, 68, 0.1);
  color: var(--danger-color);
}

/* Content Wrapper */
.content-wrapper {
  flex: 1;
  padding: 24px 32px;
  overflow-y: auto;
}

/* ========================================
   Pages
   ======================================== */
.page {
  display: none;
}

.page.active {
  display: block;
}

/* ========================================
   Stats Grid
   ======================================== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin-bottom: 32px;
}

.stat-card {
  background-color: var(--bg-primary);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  align-items: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
}

.stat-icon {
  font-size: 32px;
  margin-right: 16px;
}

.stat-info h3 {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.stat-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-primary);
}

/* ========================================
   Dashboard Sections
   ======================================== */
.dashboard-sections {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 24px;
}

.section {
  background-color: var(--bg-primary);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
}

.section h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-primary);
}

/* ========================================
   Tables
   ======================================== */
.table-wrapper {
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.data-table th,
.data-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.data-table th {
  font-weight: 600;
  color: var(--text-secondary);
  background-color: var(--bg-tertiary);
  white-space: nowrap;
}

.data-table tbody tr:hover {
  background-color: var(--bg-secondary);
}

.data-table td {
  color: var(--text-primary);
}

/* Status Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 500;
}

.badge-success {
  background-color: rgba(16, 185, 129, 0.1);
  color: var(--success-color);
}

.badge-warning {
  background-color: rgba(245, 158, 11, 0.1);
  color: var(--warning-color);
}

.badge-danger {
  background-color: rgba(239, 68, 68, 0.1);
  color: var(--danger-color);
}

.badge-info {
  background-color: rgba(59, 130, 246, 0.1);
  color: var(--info-color);
}

.badge-secondary {
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
}

/* ========================================
   Page Actions
   ======================================== */
.page-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.search-box {
  display: flex;
  gap: 8px;
}

.search-box input {
  padding: 8px 16px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 14px;
  width: 280px;
}

.search-box input:focus {
  outline: none;
  border-color: var(--primary-color);
}

.search-box select {
  padding: 8px 16px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 14px;
  background-color: var(--bg-primary);
  cursor: pointer;
}

.search-box select:focus {
  outline: none;
  border-color: var(--primary-color);
}

/* ========================================
   Pagination
   ======================================== */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 20px;
}

.pagination button {
  padding: 8px 12px;
  border: 1px solid var(--border-color);
  background-color: var(--bg-primary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 13px;
}

.pagination button:hover {
  background-color: var(--bg-tertiary);
}

.pagination button.active {
  background-color: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

.pagination button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ========================================
   Distribution List
   ======================================== */
.distribution-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.distribution-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px;
  background-color: var(--bg-secondary);
  border-radius: var(--radius-md);
}

.distribution-item .label {
  font-weight: 500;
}

.distribution-item .value {
  font-size: 18px;
  font-weight: 600;
  color: var(--primary-color);
}

/* ========================================
   Modal
   ======================================== */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 1000;
  align-items: center;
  justify-content: center;
}

.modal.active {
  display: flex;
}

.modal-content {
  background-color: var(--bg-primary);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
}

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

.modal-header h3 {
  font-size: 18px;
  font-weight: 600;
}

.modal-close {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--text-secondary);
  padding: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
}

.modal-close:hover {
  background-color: var(--bg-tertiary);
}

.modal form {
  padding: 24px;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 24px;
}

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

.form-group label {
  display: block;
  margin-bottom: 6px;
  font-weight: 500;
  font-size: 13px;
  color: var(--text-primary);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 14px;
  font-family: inherit;
  transition: all 0.2s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.form-group input[type="checkbox"] {
  width: auto;
  margin-right: 8px;
}

/* ========================================
   Settings
   ======================================== */
.settings-section {
  background-color: var(--bg-primary);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  max-width: 500px;
}

.settings-section h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-color);
}

.settings-form {
  max-width: 400px;
}

.text-muted {
  color: var(--text-secondary);
  font-size: 13px;
}

/* ========================================
   Dictionary
   ======================================== */
.dictionary-list {
  margin-top: 20px;
}

.dictionary-section {
  margin-bottom: 32px;
  padding: 20px;
  background-color: var(--bg-secondary);
  border-radius: var(--radius-md);
}

.dictionary-section h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--primary-color);
}

.dictionary-section .data-table {
  background-color: var(--bg-primary);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-top: 16px;
}

/* ========================================
   Utilities
   ======================================== */
.text-center {
  text-align: center;
}

.text-right {
  text-align: right;
}

.text-success {
  color: var(--success-color);
}

.text-danger {
  color: var(--danger-color);
}

.text-warning {
  color: var(--warning-color);
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-secondary);
}

.empty-state-icon {
  font-size: 48px;
  margin-bottom: 16px;
}

/* Toast Notification */
.toast {
  position: fixed;
  top: 20px;
  right: 20px;
  padding: 16px 24px;
  border-radius: var(--radius-md);
  color: white;
  font-weight: 500;
  z-index: 2000;
  animation: slideIn 0.3s ease;
}

.toast.success {
  background-color: var(--success-color);
}

.toast.error {
  background-color: var(--danger-color);
}

.toast.warning {
  background-color: var(--warning-color);
}

@keyframes slideIn {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 1024px) {
  .dashboard-sections {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
    transition: transform 0.3s;
  }
  
  .sidebar.open {
    transform: translateX(0);
  }
  
  .main-content {
    margin-left: 0;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .content-wrapper {
    padding: 16px;
  }
  
  .top-bar {
    padding: 0 16px;
  }
}