/* Modern Dark Theme inspired by Intellectia.AI */
:root {
  --primary-bg: #ffffff;
  --secondary-bg: #f8f9fa;
  --card-bg: #ffffff;
  --accent-bg: #e9ecef;
  --primary-text: #212529;
  --secondary-text: #6c757d;
  --accent-text: #007bff;
  --success-color: #28a745;
  --warning-color: #ffc107;
  --error-color: #dc3545;
  --gradient-primary: linear-gradient(135deg, #007bff 0%, #0056b3 100%);
  --gradient-secondary: linear-gradient(135deg, #28a745 0%, #1e7e34 100%);
  --gradient-accent: linear-gradient(135deg, #dc3545 0%, #c82333 100%);
  --border-color: #dee2e6;
  --shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-hover: 0 4px 8px rgba(0, 0, 0, 0.15);
  --border-radius: 8px;
  --border-radius-small: 6px;
  --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans', Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji';
  background: var(--primary-bg);
  color: var(--primary-text);
  line-height: 1.5;
  overflow-x: hidden;
  font-size: 14px;
  font-weight: 400;
}

/* Background Pattern */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 25% 25%, rgba(0, 123, 255, 0.03) 0%, transparent 50%),
    radial-gradient(circle at 75% 75%, rgba(40, 167, 69, 0.03) 0%, transparent 50%);
  z-index: -1;
  pointer-events: none;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.25;
  margin-bottom: 0.5rem;
  color: var(--primary-text);
}

h1 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

h2 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--primary-text);
}

h3 {
  font-size: 1.8rem;
  color: var(--accent-text);
}

p {
  color: var(--secondary-text);
  font-size: 1.1rem;
  margin-bottom: 1rem;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Sidebar */
.sidebar {
  position: fixed;
  left: 0;
  top: 0;
  width: 280px;
  height: 100vh;
  background: #f8f9fa !important;
  backdrop-filter: blur(20px);
  border-right: 1px solid #dee2e6;
  z-index: 1000;
  transition: var(--transition);
  overflow-y: auto;
}

.sidebar .brand {
  padding: 2rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  text-align: center;
}

.sidebar .brand .logo {
  display: block;
  margin: 0 auto 30px;
  height: 50px;
  padding: 10px;
}

.sidebar .brand h2 {
  font-size: 1.5rem;
  margin: 0;
  color: #212529;
  font-weight: 600;
}

.sidebar nav {
  padding: 1rem 0;
}

.sidebar nav a {
  display: block;
  padding: 1rem 1.5rem;
  color: #6c757d;
  text-decoration: none;
  transition: var(--transition);
  border-left: 3px solid transparent;
}

.sidebar nav a:hover,
.sidebar nav a.active {
  color: #212529;
  background: #e9ecef;
  border-left-color: #007bff;
}

.sidebar .lang-switch {
  margin-top: 0.5rem;
  padding: 0;
}

.sidebar .lang-switch a {
  display: flex;
  align-items: center;
  padding: 12px 15px;
  color: #6c757d;
  text-decoration: none;
  border-radius: var(--border-radius);
  margin-bottom: 8px;
  transition: background 0.3s ease, color 0.3s ease;
}

.sidebar .lang-switch a:hover {
  background: #e9ecef;
  color: #007bff;
  text-decoration: none;
}

/* Main Content */
.content {
  margin-left: 280px;
  min-height: 100vh;
  padding: 2rem 0;
}

/* Page Header */
.page-header {
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 2rem;
  margin-bottom: 2rem;
  box-shadow: var(--shadow);
}

.page-header h1 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.header-links {
  margin-top: 1rem;
}

.header-links a {
  color: var(--accent-text);
  text-decoration: none;
  margin-right: 1rem;
  transition: var(--transition);
}

.header-links a:hover {
  color: var(--primary-text);
}

/* Cards */
.card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 2rem;
  margin-bottom: 2rem;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

/* Buttons */
.btn, .cta {
  display: inline-block;
  padding: 8px 16px;
  background: var(--accent-text);
  color: var(--primary-bg);
  text-decoration: none;
  border-radius: var(--border-radius);
  font-weight: 500;
  font-size: 14px;
  transition: var(--transition);
  border: 1px solid var(--accent-text);
  cursor: pointer;
}

.btn:hover, .cta:hover {
  background: var(--primary-bg);
  color: var(--accent-text);
  border-color: var(--accent-text);
  box-shadow: var(--shadow-hover);
}

.btn-secondary {
  background: var(--gradient-secondary);
}

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

/* Forms */
input, select, textarea {
  width: 100%;
  padding: 8px 12px;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  color: var(--primary-text);
  font-size: 14px;
  transition: var(--transition);
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent-text);
  box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.2);
}

input::placeholder {
  color: var(--secondary-text);
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card-bg);
  border-radius: var(--border-radius);
  overflow: hidden;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow);
}

th, td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
  font-size: 14px;
}

th {
  background: var(--secondary-bg);
  color: var(--primary-text);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 13px;
  letter-spacing: 0.5px;
}

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

tr:hover {
  background: var(--secondary-bg);
}

/* Toolbar */
.im-toolbar {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  align-items: center;
}

.im-toolbar input {
  flex: 1;
  min-width: 200px;
}

.im-toolbar button {
  padding: 0.75rem 1.5rem;
  background: var(--gradient-primary);
  color: var(--primary-text);
  border: none;
  border-radius: var(--border-radius-small);
  cursor: pointer;
  font-weight: 600;
  transition: var(--transition);
}

.im-toolbar button:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow);
}

/* Status Indicators */
.im-muted {
  color: var(--secondary-text);
  font-style: italic;
}

/* Loading States */
.loading {
  text-align: center;
  padding: 3rem;
  color: var(--secondary-text);
}

.loading::after {
  content: '';
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-color);
  border-top: 2px solid var(--accent-text);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-left: 1rem;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Error States */
.error {
  background: var(--gradient-accent);
  color: var(--primary-text);
  padding: 1rem;
  border-radius: var(--border-radius-small);
  margin: 1rem 0;
}

/* Success States */
.success {
  background: var(--gradient-secondary);
  color: var(--primary-text);
  padding: 1rem;
  border-radius: var(--border-radius-small);
  margin: 1rem 0;
}

/* Newsletter Section */
.newsletter-section {
  background: var(--gradient-primary);
  border-radius: var(--border-radius);
  padding: 3rem 2rem;
  text-align: center;
  margin: 3rem 0;
  box-shadow: var(--shadow);
}

.newsletter-container h3 {
  color: var(--primary-text);
  font-size: 2rem;
  margin-bottom: 1rem;
}

.newsletter-container p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.2rem;
  margin-bottom: 2rem;
}

.newsletter-input-group {
  display: flex;
  gap: 1rem;
  max-width: 500px;
  margin: 0 auto;
}

.newsletter-input-group input {
  flex: 1;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--primary-text);
}

.newsletter-input-group input::placeholder {
  color: rgba(255, 255, 255, 0.7);
}

.newsletter-btn {
  background: var(--gradient-accent);
  color: var(--primary-text);
  border: none;
  padding: 1rem 2rem;
  border-radius: var(--border-radius-small);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.newsletter-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

/* Language Switch */
.lang-switch {
  text-align: center;
  padding: 2rem;
  background: var(--card-bg);
  border-radius: var(--border-radius);
  margin-top: 2rem;
  box-shadow: var(--shadow);
}

.lang-switch a {
  margin: 0 1rem;
  color: var(--accent-text);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
}

.lang-switch a:hover {
  color: var(--primary-text);
}

/* Mobile Menu Button */
.mobile-menu-btn {
  display: none;
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 1001;
  background: var(--gradient-primary);
  color: var(--primary-text);
  border: none;
  padding: 1rem;
  border-radius: 50%;
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

/* Responsive Design */
@media (max-width: 768px) {
  .sidebar {
    left: -280px;
  }
  
  .sidebar.active {
    left: 0;
  }
  
  .content {
    margin-left: 0;
    padding: 1rem;
  }
  
  .mobile-menu-btn {
    display: block;
  }
  
  h1 {
    font-size: 2.5rem;
  }
  
  h2 {
    font-size: 2rem;
  }
  
  .container {
    padding: 0 1rem;
  }
  
  .newsletter-input-group {
    flex-direction: column;
  }
  
  .im-toolbar {
    flex-direction: column;
    align-items: stretch;
  }
  
  .im-toolbar input {
    min-width: auto;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 2rem;
  }
  
  .card {
    padding: 1.5rem;
  }
  
  .page-header {
    padding: 1.5rem;
  }
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--secondary-bg);
}

::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-text);
}

/* Selection */
::selection {
  background: var(--accent-text);
  color: var(--primary-bg);
}

/* Focus */
:focus {
  outline: 2px solid var(--accent-text);
  outline-offset: 2px;
}

/* Dashboard Sections */
.dashboard-sections {
  margin-top: 20px;
}

.dashboard-section {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  margin-bottom: 20px;
  box-shadow: var(--shadow-light);
  transition: var(--transition);
}

.dashboard-section:hover {
  box-shadow: var(--shadow-hover);
}

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

.section-header:hover {
  background: rgba(255, 255, 255, 0.02);
}

.section-header h2 {
  margin: 0;
  color: var(--accent-text);
  font-size: 1.5rem;
}

.section-controls {
  display: flex;
  align-items: center;
  gap: 15px;
}

.section-status {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.expand-btn {
  background: var(--gradient-primary);
  color: var(--primary-text);
  border: none;
  padding: 8px 16px;
  border-radius: var(--border-radius-small);
  cursor: pointer;
  font-size: 0.9rem;
  transition: var(--transition);
}

.expand-btn:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.section-content {
  padding: 20px;
}

.section-loading {
  text-align: center;
  padding: 40px;
  color: var(--text-secondary);
  font-style: italic;
}

.section-data {
  display: none;
}

.section-data.active {
  display: block;
}

/* Summary Cards */
.summary-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-bottom: 30px;
}

.summary-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 20px;
  text-align: center;
  transition: var(--transition);
}

.summary-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-light);
}

.summary-card h3 {
  margin: 0 0 10px 0;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.summary-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent-text);
  margin: 0;
}

/* Data Sections */
.data-section {
  margin-bottom: 30px;
}

.data-section h3 {
  color: var(--text-primary);
  margin-bottom: 15px;
  font-size: 1.2rem;
  border-bottom: 2px solid var(--accent-text);
  padding-bottom: 5px;
}

.table-container {
  overflow-x: auto;
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color);
}

/* Print Styles */
@media print {
  .sidebar,
  .mobile-menu-btn,
  .lang-switch {
    display: none;
  }
  
  .content {
    margin-left: 0;
  }
  
  body {
    background: white;
    color: black;
  }
}