:root {
  --primary: #000000;
  --primary-dark: #333333;
  --secondary: #666666;
  --success: #059669;
  --danger: #dc2626;
  --warning: #d97706;
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --border: #e2e8f0;
  --shadow: none;
  --radius: 0px;
  --font-main: "Inter", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", "Fira Code", Consolas, monospace;
}

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

body {
  font-family: var(--font-main);
  background: var(--bg-secondary);
  color: var(--text-primary);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* Login Screen */
.login-container {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: var(--bg-secondary);
}

.login-card {
  background: var(--bg-primary);
  padding: 3rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  width: 100%;
  max-width: 400px;
  margin: 1rem;
}

.login-card h1 {
  text-align: center;
  margin-bottom: 0.5rem;
  font-size: 2rem;
}

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

/* Header */
.header {
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border);
  padding: 1rem 2rem;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1400px;
  margin: 0 auto;
}

.header h1 {
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.025em;
}

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

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

/* Navigation */
.nav {
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 90;
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  gap: 2rem;
  overflow-x: auto;
}

.nav-item {
  background: none;
  border: none;
  padding: 1rem 0;
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
  white-space: nowrap;
  position: relative;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

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

.badge {
  background: var(--text-primary);
  color: var(--bg-primary);
  font-size: 0.7rem;
  padding: 0.1rem 0.4rem;
  border-radius: var(--radius);
  margin-left: 0.5rem;
  font-weight: 600;
  font-family: var(--font-mono);
}

/* Main Content */
.main-content {
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem;
}

.tab-content {
  display: none;
}

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

.tab-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.stat-card {
  background: var(--bg-primary);
  padding: 1.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 1rem;
}

.stat-icon {
  font-size: 1.5rem;
  color: var(--text-secondary);
}

.stat-value {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  font-family: var(--font-mono);
}

.stat-label {
  color: var(--text-secondary);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

/* Dashboard Sections */
.dashboard-sections {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 1rem;
}

.dashboard-section {
  background: var(--bg-primary);
  padding: 1.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.dashboard-section h3 {
  margin-bottom: 1.5rem;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.75rem;
}

/* Cards Grid */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 1rem;
}

.card {
  background: var(--bg-primary);
  padding: 1.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: border-color 0.2s;
}

.card:hover {
  border-color: var(--text-primary);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: start;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}

.card-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
  font-family: var(--font-mono);
}

.card-subtitle {
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-family: var(--font-mono);
}

.card-actions {
  display: flex;
  gap: 0.5rem;
}

.card-body {
  margin: 1rem 0;
}

.card-info {
  display: grid;
  gap: 0.5rem;
}

.info-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.25rem 0;
  border-bottom: 1px dashed var(--border);
}

.info-row:last-child {
  border-bottom: none;
}

.info-label {
  color: var(--text-secondary);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.info-value {
  font-weight: 500;
  font-family: var(--font-mono);
  font-size: 0.875rem;
}

/* Status Badge */
.status-badge {
  display: inline-block;
  padding: 0.1rem 0.5rem;
  border-radius: var(--radius);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  font-family: var(--font-mono);
  border: 1px solid transparent;
}

.status-online,
.status-running {
  background: transparent;
  color: var(--success);
  border-color: var(--success);
}

.status-offline,
.status-stopped,
.status-error {
  background: transparent;
  color: var(--danger);
  border-color: var(--danger);
}

.status-maintenance,
.status-unknown {
  background: transparent;
  color: var(--warning);
  border-color: var(--warning);
}

.status-production {
  background: var(--text-primary);
  color: var(--bg-primary);
}

.status-staging {
  background: transparent;
  color: var(--warning);
  border-color: var(--warning);
}

.status-development {
  background: transparent;
  color: var(--text-secondary);
  border-color: var(--text-secondary);
}

.status-testing {
  background: transparent;
  color: var(--secondary);
  border-color: var(--secondary);
}

/* Alert List */
.alert-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.alert-item {
  background: var(--bg-primary);
  padding: 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  border-left-width: 4px;
}

.alert-item.severity-critical {
  border-left-color: var(--danger);
}

.alert-item.severity-high {
  border-left-color: #ef4444;
}

.alert-item.severity-medium {
  border-left-color: var(--warning);
}

.alert-item.severity-low {
  border-left-color: var(--primary);
}

.alert-item.status-acknowledged {
  opacity: 0.7;
}

.alert-item.status-resolved {
  opacity: 0.5;
  border-left-color: var(--success);
}

.alert-header {
  display: flex;
  justify-content: space-between;
  align-items: start;
  margin-bottom: 0.5rem;
}

.alert-title {
  font-weight: 600;
  font-size: 0.875rem;
  font-family: var(--font-mono);
}

.alert-time {
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-family: var(--font-mono);
}

.alert-message {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-bottom: 0.5rem;
}

.alert-meta {
  display: flex;
  gap: 1rem;
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-family: var(--font-mono);
}

.alert-actions {
  margin-top: 0.75rem;
}

/* App Status List */
.app-status-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.app-status-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem;
  background: var(--bg-secondary);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.app-status-name {
  font-weight: 600;
  font-family: var(--font-mono);
  font-size: 0.875rem;
}

.app-status-server {
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-family: var(--font-mono);
}

/* Forms */
.form-group {
  margin-bottom: 1.5rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
select,
textarea {
  width: 100%;
  padding: 0.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.875rem;
  transition: border-color 0.2s;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-mono);
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--text-primary);
}

textarea {
  resize: vertical;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  font-weight: normal;
  font-size: 0.875rem;
}

input[type="checkbox"] {
  width: 1rem;
  height: 1rem;
  cursor: pointer;
  border-radius: 0;
}

.form-section-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 1.5rem 0 1rem 0;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Buttons */
.btn {
  padding: 0.5rem 1rem;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-family: var(--font-mono);
}

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

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

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

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

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

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

.btn-sm {
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
}

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

.btn-icon {
  background: none;
  border: none;
  padding: 0.5rem;
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 1.25rem;
  transition: color 0.2s;
}

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

/* Modal */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(2px);
  z-index: 1000;
  overflow-y: auto;
  padding: 2rem;
}

.modal.active {
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-content {
  background: var(--bg-primary);
  border-radius: var(--radius);
  max-width: 800px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: none;
  border: 1px solid var(--text-primary);
  margin: auto;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg-secondary);
}

.modal-header h2 {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.close-btn {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-secondary);
  line-height: 1;
  transition: color 0.2s;
}

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

.modal-content form {
  padding: 1.5rem;
}

.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 1rem;
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

/* Error Message */
.error-message {
  color: var(--danger);
  font-size: 0.875rem;
  margin-top: 1rem;
  padding: 0.75rem;
  background: transparent;
  border: 1px solid var(--danger);
  border-radius: var(--radius);
  display: none;
  font-family: var(--font-mono);
}

.error-message.show {
  display: block;
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--text-secondary);
}

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  color: var(--border);
}

.empty-state h3 {
  margin-bottom: 0.5rem;
  font-weight: 600;
  font-size: 1rem;
}

/* Loading */
.loading {
  text-align: center;
  padding: 2rem;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* Responsive */
@media (max-width: 768px) {
  .main-content {
    padding: 1rem;
  }

  .header {
    padding: 1rem;
  }

  .nav {
    padding: 0 1rem;
  }

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

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

  .dashboard-sections {
    grid-template-columns: 1fr;
  }

  .tab-header {
    flex-direction: column;
    align-items: stretch;
    gap: 1rem;
  }

  .stats-grid {
    grid-template-columns: 1fr;
  }
}
/* User Management Styles */
.table-container {
  background: var(--bg-primary);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
}

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

.data-table th {
  background: var(--bg-secondary);
  font-weight: 600;
  color: var(--text-secondary);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

.badge-admin { background: #7c3aed; color: white; }
.badge-server_admin { background: #2563eb; color: white; }
.badge-developer { background: #059669; color: white; }
.badge-stakeholder { background: #d97706; color: white; }
.badge-viewer { background: #64748b; color: white; }

/* Analytics Styles */
.event-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.event-item {
  background: var(--bg-primary);
  padding: 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.status-info {
  background: transparent;
  color: var(--text-secondary);
  border-color: var(--text-secondary);
}
/* Charts */
.charts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.chart-card {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  height: 350px;
  display: flex;
  flex-direction: column;
}

.chart-card h3 {
  color: var(--text-secondary);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
  text-align: center;
}

.chart-card canvas {
  flex: 1;
}

/* Filter Toolbar */
.filter-toolbar {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.search-input {
  flex: 1;
  min-width: 200px;
  padding: 0.5rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
}

.filter-select {
  padding: 0.5rem 2rem 0.5rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-primary);
  color: var(--text-primary);
  cursor: pointer;
  min-width: 150px;
}