/* Modern CSS Framework - Main Entry Point */

/* Import Design System */
@import url('./variables.css');
@import url('./reset.css');
@import url('./typography.css');
@import url('./layout.css');
@import url('./components.css');
@import url('./utilities.css');
@import url('./animations.css');
@import url('./responsive.css');

/* Import Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* Application Layout */
.app {
  min-height: 100vh;
  background-color: var(--color-background, #f8fafc);
}

/* App Layout - Sidebar + Main */
.app-layout {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.app-sidebar {
  width: 260px;
  background: var(--color-white, #fff);
  border-right: 1px solid var(--color-border, #e2e8f0);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 40;
  overflow-y: auto;
  transition: transform 0.3s ease;
}

.sidebar-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--color-border, #e2e8f0);
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: inherit;
}

.sidebar-logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--color-primary-500, #3b82f6), var(--color-primary-600, #2563eb));
  border-radius: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.25rem;
}

.sidebar-logo-text {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0;
  color: var(--color-text-primary, #1e293b);
}

.sidebar-logo-version {
  font-size: 0.75rem;
  color: var(--color-text-secondary, #64748b);
  margin: 0;
}

.sidebar-nav {
  padding: 1rem 0.75rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.sidebar-nav-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;
  color: var(--color-text-secondary, #64748b);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all 0.15s ease;
}

.sidebar-nav-item:hover {
  background: var(--color-gray-50, #f8fafc);
  color: var(--color-text-primary, #1e293b);
}

.sidebar-nav-item.active {
  background: var(--color-primary-50, #eff6ff);
  color: var(--color-primary-600, #2563eb);
  font-weight: 600;
}

.sidebar-nav-icon {
  width: 1.25rem;
  text-align: center;
  font-size: 1rem;
}

.sidebar-divider {
  height: 1px;
  background: var(--color-border, #e2e8f0);
  margin: 0.5rem 0;
}

/* Main Area */
.app-main {
  flex: 1;
  margin-left: 260px;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* App Header */
.app-header {
  background: var(--color-white, #fff);
  border-bottom: 1px solid var(--color-border, #e2e8f0);
  padding: 1rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 30;
}

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

.header-title-area {}

.header-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text-primary, #1e293b);
  margin: 0;
}

.header-subtitle {
  font-size: 0.8125rem;
  color: var(--color-text-secondary, #64748b);
  margin: 0;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.header-action-btn {
  background: none;
  border: 1px solid var(--color-border, #e2e8f0);
  border-radius: 0.5rem;
  padding: 0.5rem;
  cursor: pointer;
  color: var(--color-text-secondary, #64748b);
  transition: all 0.15s ease;
}

.header-action-btn:hover {
  background: var(--color-gray-50, #f8fafc);
  color: var(--color-text-primary, #1e293b);
}

.header-user {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.header-user-avatar {
  width: 2rem;
  height: 2rem;
  background: linear-gradient(135deg, var(--color-primary-500, #3b82f6), var(--color-primary-600, #2563eb));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 600;
  font-size: 0.8125rem;
}

.header-user-name {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-primary, #1e293b);
}

.sidebar-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-border, #e2e8f0);
  border-radius: 0.5rem;
  padding: 0.5rem 0.75rem;
  cursor: pointer;
  color: var(--color-text-secondary, #64748b);
}

/* App Content */
.app-content {
  flex: 1;
  padding: 1.5rem;
  max-width: 1400px;
  width: 100%;
}

/* Loading Overlay */
.loading-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;
}

.loading-overlay.hidden {
  display: none;
}

.loading-card {
  background: white;
  border-radius: 0.75rem;
  padding: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.loading-spinner {
  width: 1.5rem;
  height: 1.5rem;
  border: 2px solid var(--color-gray-200, #e2e8f0);
  border-radius: 50%;
  border-top-color: var(--color-primary-500, #3b82f6);
  animation: spin 1s linear infinite;
}

/* Toast Container */
.toast-container {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 100;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

/* Dashboard-specific: stat card content layout */
.stat-card-content {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.stat-icon-primary { background: var(--color-primary-50, #eff6ff); color: var(--color-primary-600, #2563eb); }
.stat-icon-success { background: var(--color-success-50, #f0fdf4); color: var(--color-success-600, #16a34a); }
.stat-icon-warning { background: var(--color-warning-50, #fffbeb); color: var(--color-warning-600, #d97706); }
.stat-icon-info { background: var(--color-info-50, #eff6ff); color: var(--color-info-600, #2563eb); }

/* Service cards */
.service-card { padding: 1.25rem; }
.service-card-header { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 1rem; }
.service-name { font-size: 0.9375rem; font-weight: 600; margin: 0; }
.service-desc { font-size: 0.75rem; color: var(--color-text-secondary, #64748b); margin: 0; }
.service-status-row { display: flex; align-items: center; gap: 0.5rem; }
.service-icon-blue { background: #dbeafe; color: #2563eb; }
.service-icon-green { background: #dcfce7; color: #16a34a; }
.service-icon-purple { background: #f3e8ff; color: #9333ea; }

/* Quick actions grid */
.quick-actions-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }

.action-card {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem;
  border: 1px solid var(--color-border, #e2e8f0);
  border-radius: 0.75rem;
  text-decoration: none;
  color: inherit;
  transition: all 0.15s ease;
}

.action-card:hover {
  background: var(--color-gray-50, #f8fafc);
  border-color: var(--color-gray-300, #cbd5e1);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.action-icon {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.action-icon-primary { background: var(--color-primary-50, #eff6ff); color: var(--color-primary-600, #2563eb); }
.action-icon-purple { background: #f3e8ff; color: #9333ea; }
.action-icon-green { background: #dcfce7; color: #16a34a; }
.action-icon-red { background: #fee2e2; color: #dc2626; }
.action-title { font-size: 0.875rem; font-weight: 600; margin: 0; }
.action-desc { font-size: 0.75rem; color: var(--color-text-secondary, #64748b); margin: 0; }

/* Empty state */
.empty-state {
  text-align: center;
  padding: 3rem 1rem;
}

.empty-icon {
  font-size: 3rem;
  color: var(--color-text-secondary, #64748b);
  margin-bottom: 1rem;
}

.empty-state h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.empty-state p {
  color: var(--color-text-secondary, #64748b);
  margin-bottom: 1.5rem;
}

/* Table responsive */
.table-responsive {
  overflow-x: auto;
}

/* Card header flex layout */
.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* Filter grid */
.filter-grid {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 1rem;
  align-items: end;
}

@media (max-width: 768px) {
  .filter-grid {
    grid-template-columns: 1fr;
  }
}

/* Pagination bar */
.pagination-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
  border-top: 1px solid var(--color-border, #e2e8f0);
  margin-top: 1rem;
}

.pagination-info {
  font-size: 0.875rem;
  color: var(--color-text-secondary, #64748b);
}

.pagination-controls {
  display: flex;
  gap: 0.25rem;
  align-items: center;
}

@media (max-width: 768px) {
  .pagination-bar {
    flex-direction: column;
    gap: 0.75rem;
  }
}

/* Link button */
.link {
  background: none;
  border: none;
  color: var(--color-primary-600, #2563eb);
  cursor: pointer;
  font-weight: 600;
  font-size: inherit;
  padding: 0;
  text-decoration: none;
}

.link:hover {
  text-decoration: underline;
}

/* Form elements */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.form-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-primary, #1e293b);
}

.form-control {
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--color-border, #e2e8f0);
  border-radius: 0.5rem;
  font-size: 0.875rem;
  background: var(--color-white, #fff);
  color: var(--color-text-primary, #1e293b);
  transition: border-color 0.15s ease;
  width: 100%;
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary-500, #3b82f6);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* Toast container */
#toast-container {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

/* Utility classes */
.ml-1 { margin-left: 0.25rem; }
.mr-1 { margin-right: 0.25rem; }
.text-primary { color: var(--color-primary-600, #2563eb); }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }

/* Responsive - Mobile sidebar */
@media (max-width: 1023px) {
  .app-sidebar {
    transform: translateX(-100%);
  }

  .app-sidebar.sidebar-open {
    transform: translateX(0);
    box-shadow: var(--shadow-xl, 0 20px 25px -5px rgb(0 0 0 / 0.1));
  }

  .app-main {
    margin-left: 0;
  }

  .sidebar-toggle {
    display: block;
  }

  .header-user-name {
    display: none;
  }

  .quick-actions-grid {
    grid-template-columns: 1fr;
  }
}

/* Header */
.header {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  padding: var(--space-4) 0;
  position: sticky;
  top: 0;
  z-index: var(--z-index-sticky);
  backdrop-filter: blur(8px);
  background-color: rgba(255, 255, 255, 0.95);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--space-4);
}

.logo {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary-600);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  transition: color var(--transition-fast);
}

.logo:hover {
  color: var(--color-primary-700);
}

.logo-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--color-primary-500), var(--color-primary-600));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-weight: var(--font-weight-bold);
}

/* Navigation */
.nav {
  display: flex;
  gap: var(--space-6);
  align-items: center;
}

.nav-link {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  position: relative;
}

.nav-link:hover {
  color: var(--color-primary-600);
  background-color: var(--color-primary-50);
}

.nav-link.active {
  color: var(--color-primary-600);
  background-color: var(--color-primary-100);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -12px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 4px;
  background-color: var(--color-primary-500);
  border-radius: 50%;
}

/* User Menu */
.user-menu {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary-500), var(--color-primary-600));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: transform var(--transition-fast);
}

.user-avatar:hover {
  transform: scale(1.05);
}

/* Main Content */
.main {
  flex: 1;
  padding: var(--space-8) 0;
  max-width: var(--container-max-width);
  margin: 0 auto;
  width: 100%;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}

.page-header {
  margin-bottom: var(--space-8);
}

.page-title {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
  line-height: var(--line-height-tight);
}

.page-subtitle {
  color: var(--color-text-secondary);
  font-size: var(--font-size-lg);
  line-height: var(--line-height-relaxed);
  max-width: 600px;
}

.page-actions {
  margin-top: var(--space-6);
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

/* Content Sections */
.section {
  margin-bottom: var(--space-12);
}

.section-header {
  margin-bottom: var(--space-6);
}

.section-title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.section-description {
  color: var(--color-text-secondary);
  font-size: var(--font-size-base);
  line-height: var(--line-height-relaxed);
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-6);
  margin-bottom: var(--space-8);
}

.stat-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

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

.stat-value {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-1);
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat-change {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  margin-top: var(--space-2);
}

.stat-change.positive {
  color: var(--color-success-600);
}

.stat-change.negative {
  color: var(--color-error-600);
}

/* Footer */
.footer {
  background: var(--color-gray-50);
  border-top: 1px solid var(--color-border);
  padding: var(--space-8) 0;
  margin-top: auto;
}

.footer-content {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--space-4);
  text-align: center;
}

.footer-text {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

/* Responsive Design */
@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
    gap: var(--space-4);
    padding: var(--space-3);
  }

  .nav {
    gap: var(--space-4);
    flex-wrap: wrap;
    justify-content: center;
  }

  .main {
    padding: var(--space-6) var(--space-3);
  }

  .page-title {
    font-size: var(--font-size-3xl);
  }

  .stats-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .page-actions {
    flex-direction: column;
  }

  .page-actions .btn {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .page-title {
    font-size: var(--font-size-2xl);
  }

  .section-title {
    font-size: var(--font-size-xl);
  }

  .stat-card {
    padding: var(--space-4);
  }

  .stat-value {
    font-size: var(--font-size-2xl);
  }
}

/* Print Styles */
@media print {

  .header,
  .footer,
  .nav,
  .user-menu {
    display: none;
  }

  .main {
    padding: 0;
    max-width: none;
  }

  .page-title {
    font-size: 24pt;
    margin-bottom: 12pt;
  }

  .card {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid #ccc;
  }
}