/* Admin Center Styles */
:root {
  --primary-color: #2563eb;
  --secondary-color: #1e40af;
  --success-color: #16a34a;
  --danger-color: #dc2626;
  --warning-color: #ea580c;
  --background-color: #f8fafc;
  --surface-color: #ffffff;
  --border-color: #e2e8f0;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --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);
}

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

html, body {
  height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
  background-color: var(--background-color);
  color: var(--text-primary);
}

body {
  overflow-x: hidden;
}

.container {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Navbar */
.navbar {
  background-color: var(--surface-color);
  border-bottom: 1px solid var(--border-color);
  padding: 1.5rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 100;
}

.navbar-brand {
  flex: 1;
}

.navbar-brand h1 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 0.25rem;
}

.navbar-brand .subtitle {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.navbar-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.user-display {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* Main Content */
main {
  flex: 1;
  padding: 2rem;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

/* Tabs */
.tabs {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 70px;
  background-color: var(--background-color);
  z-index: 10;
  padding-bottom: 0;
}

.tab-btn {
  padding: 1rem 1.5rem;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-bottom: 2px solid transparent;
  transition: all 0.3s ease;
  margin-bottom: -1px;
}

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

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

/* Tab Content */
.tab-content {
  display: none;
  animation: fadeIn 0.3s ease;
}

.tab-content.active {
  display: block;
}

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

/* Cards */
.card {
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.card h2 {
  font-size: 1.25rem;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
}

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

/* Dashboard Grid */
.status-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.status-item {
  background-color: var(--background-color);
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  padding: 1.5rem;
  text-align: center;
}

.status-item h3 {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
}

.status-value {
  font-size: 1.75rem;
  font-weight: 700;
  margin: 0;
}

.status-badge {
  display: inline-block;
  margin-right: 0.5rem;
}

.status-badge.status-online {
  color: var(--success-color);
}

.status-badge.status-offline {
  color: var(--danger-color);
}

/* Quick Actions */
.quick-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Forms */
.form-section {
  background-color: var(--background-color);
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  padding: 1.5rem;
  margin-bottom: 2rem;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  align-items: flex-end;
}

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

.form-group label {
  font-weight: 500;
  margin-bottom: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-primary);
}

.form-group input,
.form-group select {
  padding: 0.625rem 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 0.375rem;
  font-size: 0.95rem;
  font-family: inherit;
  transition: all 0.2s ease;
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Buttons */
.btn {
  padding: 0.625rem 1rem;
  border: none;
  border-radius: 0.375rem;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  display: inline-block;
  text-align: center;
}

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

.btn-primary:hover {
  background-color: var(--secondary-color);
}

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

.btn-secondary:hover {
  background-color: #cbd5e1;
}

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

.btn-danger:hover {
  background-color: #b91c1c;
}

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

.btn-success:hover {
  background-color: #15803d;
}

.btn-block {
  width: 100%;
}

/* Tables */
.table-section {
  margin-top: 2rem;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--surface-color);
}

.data-table thead {
  background-color: var(--background-color);
  border-bottom: 2px solid var(--border-color);
}

.data-table th {
  padding: 1rem 0.75rem;
  text-align: left;
  font-weight: 600;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
}

.data-table td {
  padding: 1rem 0.75rem;
  border-bottom: 1px solid var(--border-color);
}

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

.data-table .empty-state {
  text-align: center;
  color: var(--text-secondary);
  font-style: italic;
}

/* Filters */
.filters {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.filter-select {
  padding: 0.625rem 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 0.375rem;
  background-color: var(--surface-color);
  font-size: 0.95rem;
  cursor: pointer;
}

/* Deployment List */
.deployments-list {
  display: grid;
  gap: 1rem;
}

.deployment-item {
  background-color: var(--background-color);
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  padding: 1.5rem;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1.5rem;
  align-items: start;
}

.deployment-info h3 {
  margin-bottom: 0.5rem;
}

.deployment-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
  font-size: 0.875rem;
}

.deployment-meta p {
  margin: 0;
  color: var(--text-secondary);
}

.deployment-actions {
  display: flex;
  gap: 0.5rem;
  flex-direction: column;
}

.deployment-badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 0.25rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-pending {
  background-color: #fef3c7;
  color: #92400e;
}

.badge-approved {
  background-color: #d1fae5;
  color: #065f46;
}

.badge-rejected {
  background-color: #fee2e2;
  color: #7f1d1d;
}

/* Login Section */
.login-container {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: 1rem;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
}

.login-card {
  background-color: var(--surface-color);
  border-radius: 0.5rem;
  padding: 2rem;
  width: 100%;
  max-width: 400px;
  box-shadow: var(--shadow-lg);
}

.login-card h1 {
  font-size: 1.75rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.login-card .subtitle {
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

#loginForm {
  margin-bottom: 1.5rem;
}

.error-message {
  background-color: #fee2e2;
  color: #7f1d1d;
  padding: 0.75rem 1rem;
  border-radius: 0.375rem;
  margin-top: 1rem;
  font-size: 0.875rem;
}

.success-message {
  background-color: #d1fae5;
  color: #065f46;
  padding: 0.75rem 1rem;
  border-radius: 0.375rem;
  margin-bottom: 1rem;
  font-size: 0.875rem;
}

.login-footer {
  background-color: var(--background-color);
  border: 1px solid var(--border-color);
  border-radius: 0.375rem;
  padding: 1rem;
  text-align: center;
  font-size: 0.875rem;
}

.login-footer p {
  margin: 0.25rem 0;
  color: var(--text-secondary);
}

.login-footer code {
  background-color: var(--surface-color);
  padding: 0.25rem 0.5rem;
  border-radius: 0.25rem;
  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
  color: var(--primary-color);
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 2rem;
  color: var(--text-secondary);
}

/* Responsive */
@media (max-width: 768px) {
  .navbar {
    flex-direction: column;
    gap: 1rem;
    align-items: flex-start;
  }

  .navbar-actions {
    width: 100%;
    justify-content: flex-end;
  }

  main {
    padding: 1rem;
  }

  .tabs {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .tab-btn {
    white-space: nowrap;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

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

  .deployment-item {
    grid-template-columns: 1fr;
  }

  .deployment-actions {
    flex-direction: row;
  }
}

@media (max-width: 480px) {
  .tabs {
    padding: 0.5rem;
  }

  .tab-btn {
    padding: 0.75rem 1rem;
    font-size: 0.85rem;
  }

  .card {
    padding: 1rem;
  }

  .status-grid {
    grid-template-columns: 1fr;
  }
}