:root {
  --bg-color: #0d0d0f;
  --panel-bg: #141417;
  --border-color: #27272a;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --accent-blue: #3b82f6;
  --accent-green: #10b981;
  --accent-red: #ef4444;
  --accent-orange: #f59e0b;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Roboto Mono', monospace;
}

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

body {
  background-color: var(--bg-color);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.5;
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* Sidebar */
.sidebar {
  width: 260px;
  background-color: var(--panel-bg);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
}

.sidebar-header {
  padding: 20px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo {
  width: 24px;
  height: 24px;
  background-color: var(--accent-blue);
  border-radius: 2px;
}

.sidebar-header h1 {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.nav-links {
  padding: 16px 0;
  list-style: none;
  flex: 1;
}

.nav-links li {
  padding: 10px 20px;
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 500;
  transition: all 0.2s;
}

.nav-links li:hover, .nav-links li.active {
  color: var(--text-primary);
  background-color: rgba(255, 255, 255, 0.03);
  border-left: 3px solid var(--accent-blue);
}

.nav-links li:not(.active) {
  border-left: 3px solid transparent;
}

.sidebar-footer {
  padding: 20px;
  border-top: 1px solid var(--border-color);
  font-size: 12px;
  color: var(--text-secondary);
  font-family: var(--font-mono);
}

/* Main Content */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

.topbar {
  height: 64px;
  border-bottom: 1px solid var(--border-color);
  background-color: var(--panel-bg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

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

.breadcrumb span {
  color: var(--text-primary);
  font-weight: 500;
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-secondary);
}

.status-indicator {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent-green);
}

.dashboard-container {
  padding: 32px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

/* Cards */
.card {
  background-color: var(--panel-bg);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
}

.card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.card-title {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-secondary);
  letter-spacing: 0.5px;
}

.card-icon {
  color: var(--text-secondary);
}

.card-body {
  padding: 20px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.metric {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.metric-label {
  font-size: 12px;
  color: var(--text-secondary);
}

.metric-value {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 500;
  color: var(--text-primary);
}

.metric-value.good { color: var(--accent-green); }
.metric-value.warning { color: var(--accent-orange); }
.metric-value.danger { color: var(--accent-red); }

/* Full width card for specific dense tables if needed */
.card.full-width {
  grid-column: 1 / -1;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: 12px;
}

.data-table th, .data-table td {
  padding: 12px 20px;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.data-table th {
  color: var(--text-secondary);
  font-weight: 500;
  text-transform: uppercase;
  background-color: rgba(255,255,255,0.01);
}

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