/**
 * AlphaBot Admin Dashboard - Premium Dark Theme
 */

:root {
  --bg: #0f172a;
  --bg-card: #1e293b;
  --bg-hover: #334155;
  --text: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --border: rgba(148, 163, 184, 0.2);
  --primary: #3b82f6;
  --primary-hover: #2563eb;
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
  --radius: 8px;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
}

/* Topbar */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  height: 60px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.topbar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo {
  font-size: 24px;
}

.brand-name {
  font-weight: 600;
  font-size: 18px;
}

.topbar-nav {
  display: flex;
  gap: 8px;
}

.nav-link {
  padding: 8px 16px;
  border-radius: var(--radius);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  transition: all 0.2s;
}

.nav-link:hover {
  background: var(--bg-hover);
  color: var(--text);
}

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

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

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

/* Main Content */
.main-content {
  max-width: 1400px;
  margin: 0 auto;
  padding: 24px;
}

/* View Header */
.view-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}

.view-header h1 {
  font-size: 24px;
  font-weight: 600;
}

.back-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
}

.back-link:hover {
  color: var(--text);
}

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 24px;
  box-shadow: var(--shadow);
}

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

.card-header h3 {
  font-size: 16px;
  font-weight: 600;
}

.card-body {
  padding: 20px;
}

/* KPI Grid */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

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

.kpi-card.primary {
  border-color: var(--primary);
  background: linear-gradient(180deg, rgba(59, 130, 246, 0.1) 0%, transparent 100%);
}

.kpi-label {
  font-size: 12px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}

.kpi-value {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 4px;
}

.kpi-sub, .kpi-change {
  font-size: 12px;
  color: var(--text-muted);
}

.kpi-value.positive, .positive {
  color: var(--success);
}

.kpi-value.negative, .negative {
  color: var(--danger);
}

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

.data-table th,
.data-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.data-table th {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

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

.data-table tr.clickable {
  cursor: pointer;
}

.client-sub {
  font-size: 11px;
  color: var(--text-muted);
}

/* Badges */
.badge {
  display: inline-block;
  padding: 4px 8px;
  font-size: 11px;
  font-weight: 600;
  border-radius: 4px;
  background: var(--bg-hover);
  color: var(--text-secondary);
}

.badge-success {
  background: rgba(16, 185, 129, 0.2);
  color: var(--success);
}

.badge-danger {
  background: rgba(239, 68, 68, 0.2);
  color: var(--danger);
}

.badge-warning {
  background: rgba(245, 158, 11, 0.2);
  color: var(--warning);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 16px;
  font-size: 14px;
  font-weight: 500;
  border: none;
  border-radius: var(--radius);
  background: var(--primary);
  color: white;
  cursor: pointer;
  transition: all 0.2s;
}

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

.btn-sm {
  padding: 6px 12px;
  font-size: 12px;
}

/* Search */
.search-box input {
  width: 300px;
  padding: 8px 12px;
  font-size: 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
}

.search-box input:focus {
  outline: none;
  border-color: var(--primary);
}

/* System Grid */
.system-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 16px;
}

.system-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px;
  background: var(--bg);
  border-radius: var(--radius);
}

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

.system-value {
  font-weight: 600;
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.stat-item {
  text-align: center;
  padding: 16px;
  background: var(--bg);
  border-radius: var(--radius);
}

.stat-label {
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.stat-value {
  font-size: 20px;
  font-weight: 600;
}

/* Config List */
.config-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.config-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px;
  background: var(--bg);
  border-radius: var(--radius);
}

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

.config-value {
  font-weight: 500;
}

/* Grid Layouts */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

/* Explain Box */
.explain-box {
  background: var(--bg);
  border-radius: var(--radius);
  padding: 16px;
}

.explain-box p {
  margin-bottom: 8px;
  color: var(--text-secondary);
}

.explain-box p:last-child {
  margin-bottom: 0;
}

/* Loading */
.loading {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-secondary);
}

/* Error */
.error-box {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid var(--danger);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
  color: var(--danger);
}

/* Responsive */
@media (max-width: 768px) {
  .topbar {
    padding: 0 16px;
  }

  .topbar-nav {
    display: none;
  }

  .main-content {
    padding: 16px;
  }

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

  .grid-2 {
    grid-template-columns: 1fr;
  }

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

  .data-table {
    font-size: 12px;
  }

  .data-table th,
  .data-table td {
    padding: 8px 12px;
  }
}