/* =============================================================================
   Pentfield Technologies Admin Portal - Stylesheet
   ============================================================================= */

:root {
  --primary: #2563eb; /* Pentfield blue */
  --primary-hover: #1d4ed8;
  --bg-dark: #0b0f19;
  --sidebar-bg: #111827;
  --card-bg: #1f2937;
  --surface: #374151;
  --border: rgba(255, 255, 255, 0.08);
  --text-main: #f9fafb;
  --text-muted: #9ca3af;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg-dark);
  color: var(--text-main);
  height: 100vh;
  display: flex;
  overflow: hidden;
}

.admin-sidebar {
  width: 260px;
  background: var(--sidebar-bg);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

.admin-brand {
  padding: 24px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--border);
}

.admin-nav {
  flex: 1;
  padding: 16px 10px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: 10px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
}

.nav-link:hover, .nav-link.active {
  background: var(--surface);
  color: white;
}

.nav-link.active {
  border-left: 3px solid var(--primary);
  border-top-left-radius: 2px;
  border-bottom-left-radius: 2px;
}

.admin-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.admin-topbar {
  padding: 16px 28px;
  background: var(--sidebar-bg);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.content-area {
  flex: 1;
  padding: 28px;
  overflow-y: auto;
}

.admin-section {
  display: none;
}

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

/* KPI Cards */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-bottom: 28px;
}

.kpi-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
}

.kpi-title {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}

.kpi-value {
  font-size: 1.6rem;
  font-weight: 700;
}

/* Data Tables */
.data-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card-bg);
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--border);
  margin-bottom: 24px;
}

.data-table th, .data-table td {
  padding: 14px 18px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 0.88rem;
}

.data-table th {
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-muted);
  font-weight: 600;
}

.badge-status {
  padding: 4px 10px;
  border-radius: 8px;
  font-size: 0.75rem;
  font-weight: 700;
  display: inline-block;
}

.badge-status.verified {
  background: rgba(16, 185, 129, 0.15);
  color: var(--success);
}

.badge-status.pending {
  background: rgba(245, 158, 11, 0.15);
  color: var(--warning);
}

.badge-status.suspended {
  background: rgba(239, 68, 68, 0.15);
  color: var(--danger);
}

.btn-action {
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: opacity 0.15s;
}

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

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

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

/* Chart Layouts & Visualizations */
.chart-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
  gap: 20px;
  margin-bottom: 24px;
}

.chart-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  display: flex;
  flex-direction: column;
}

.chart-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.chart-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: #f9fafb;
  display: flex;
  align-items: center;
  gap: 8px;
}

.chart-badge {
  font-size: 0.72rem;
  padding: 3px 8px;
  border-radius: 6px;
  background: rgba(37, 99, 235, 0.15);
  color: #60a5fa;
  font-weight: 600;
}

.chart-container {
  position: relative;
  width: 100%;
  height: 260px;
}