:root {
  --bg-dark: #090d16;
  --bg-card: #111827;
  --bg-card-hover: #1f2937;
  --border-color: #1f293d;
  --accent-primary: #10b981;
  --accent-primary-hover: #059669;
  --accent-cyan: #06b6d4;
  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --danger: #ef4444;
  --warning: #f59e0b;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

body {
  font-family: var(--font);
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.5;
  overflow-x: hidden;
}

.app-layout {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: 260px;
  background-color: #0d1322;
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  padding: 24px 16px;
  flex-shrink: 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 8px 24px 8px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 24px;
}

.brand-badge {
  font-size: 26px;
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, #10b981 0%, #06b6d4 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.25);
}

.brand-info h1 {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 1px;
}

.brand-info span {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.nav-menu {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  background: transparent;
  border: none;
  border-radius: 8px;
  color: var(--text-muted);
  font-size: 0.92rem;
  font-weight: 500;
  cursor: pointer;
  text-align: left;
  transition: all 0.2s ease;
}

.nav-item:hover {
  background-color: var(--bg-card);
  color: var(--text-main);
}

.nav-item.active {
  background-color: rgba(16, 185, 129, 0.12);
  color: var(--accent-primary);
  border: 1px solid rgba(16, 185, 129, 0.25);
}

.sidebar-footer {
  padding-top: 20px;
  border-top: 1px solid var(--border-color);
}

.mobile-launch-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  background: linear-gradient(135deg, #059669 0%, #047857 100%);
  color: #fff;
  border-radius: 8px;
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 600;
  transition: opacity 0.2s;
}

.mobile-launch-btn:hover {
  opacity: 0.9;
}

/* Main Content */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 32px;
  background-color: rgba(13, 19, 34, 0.8);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 10;
}

.top-title h2 {
  font-size: 1.4rem;
  font-weight: 700;
}

.top-title p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 2px;
}

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

.refresh-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-main);
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 500;
  transition: all 0.2s;
}

.refresh-btn:hover {
  background-color: var(--bg-card-hover);
  border-color: var(--accent-cyan);
}

.live-pill {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background-color: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-primary);
  letter-spacing: 0.5px;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent-primary);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-primary);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.3); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.8; }
}

.content-body {
  padding: 32px;
  flex: 1;
}

.tab-pane {
  display: none;
}

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

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

.kpi-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 20px;
  position: relative;
  overflow: hidden;
}

.kpi-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.kpi-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.kpi-icon {
  font-size: 1.25rem;
  opacity: 0.8;
}

.kpi-value {
  font-size: 2rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.5px;
}

.kpi-hint {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 6px;
}

.status-safe {
  color: var(--accent-primary);
  font-weight: 600;
}

/* Split Section */
.dashboard-split {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 24px;
}

.panel {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 24px;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.panel-header h3 {
  font-size: 1.1rem;
  font-weight: 700;
}

.text-btn {
  background: none;
  border: none;
  color: var(--accent-cyan);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
}

.badge {
  background-color: rgba(255, 255, 255, 0.08);
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Tables */
.table-container {
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.9rem;
}

.data-table th {
  padding: 12px 14px;
  background-color: rgba(0, 0, 0, 0.2);
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border-color);
}

.data-table td {
  padding: 14px;
  border-bottom: 1px solid var(--border-color);
}

.data-table tbody tr:hover {
  background-color: rgba(255, 255, 255, 0.02);
}

.user-cell {
  display: flex;
  align-items: center;
  gap: 10px;
}

.user-avatar-circle {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: #1f2937;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  border: 1px solid var(--border-color);
}

.user-name-text {
  font-weight: 600;
}

.status-badge {
  display: inline-block;
  padding: 4px 8px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}

.status-badge.active {
  background-color: rgba(16, 185, 129, 0.15);
  color: var(--accent-primary);
}

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

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

/* Search and Filters */
.search-header {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.search-box {
  display: flex;
  align-items: center;
  gap: 10px;
  background-color: var(--bg-dark);
  border: 1px solid var(--border-color);
  padding: 10px 14px;
  border-radius: 8px;
  flex: 1;
  min-width: 250px;
}

.search-box input {
  background: none;
  border: none;
  outline: none;
  color: var(--text-main);
  font-size: 0.9rem;
  width: 100%;
}

.filter-group select {
  background-color: var(--bg-dark);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 10px 16px;
  border-radius: 8px;
  outline: none;
  font-size: 0.9rem;
}

.action-btns {
  display: flex;
  gap: 8px;
}

.action-btn {
  padding: 6px 10px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.action-btn:hover {
  background-color: var(--border-color);
}

.action-btn.ban-btn:hover {
  background-color: var(--warning);
  color: #000;
}

.action-btn.delete-btn:hover {
  background-color: var(--danger);
  color: #fff;
}

/* Audit log list */
.audit-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: 380px;
  overflow-y: auto;
}

.audit-item {
  display: flex;
  justify-content: space-between;
  padding: 12px;
  background-color: rgba(0, 0, 0, 0.2);
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.04);
  font-size: 0.85rem;
}

.audit-action {
  font-weight: 600;
  color: var(--accent-cyan);
}

.audit-details {
  color: var(--text-muted);
  font-size: 0.8rem;
  margin-top: 2px;
}

.audit-time {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Storage Meter */
.storage-meter {
  margin-bottom: 28px;
}

.meter-bar {
  height: 16px;
  background-color: rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 8px;
  border: 1px solid var(--border-color);
}

.meter-fill {
  height: 100%;
  background: linear-gradient(90deg, #10b981 0%, #06b6d4 100%);
  border-radius: 10px;
  transition: width 0.4s ease;
}

.meter-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 600;
}

.storage-highlights {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.highlight-item {
  padding: 16px;
  background-color: rgba(0, 0, 0, 0.2);
  border-radius: 8px;
  border-left: 4px solid var(--accent-primary);
}

.highlight-title {
  font-weight: 700;
  margin-bottom: 4px;
}

.highlight-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.empty-state {
  text-align: center;
  color: var(--text-muted);
  padding: 24px;
}

@media (max-width: 900px) {
  .app-layout {
    flex-direction: column;
  }
  .sidebar {
    width: 100%;
  }
  .dashboard-split {
    grid-template-columns: 1fr;
  }
}