/* ==========================================================================
   NETBOOKLER - ADMIN DASHBOARD STYLES (ADMIN.CSS)
   ========================================================================== */

/* Layout Shell */
.admin-layout {
  display: flex;
  min-height: 100vh;
  background-color: var(--bg-body);
}

/* Sidebar */
.admin-sidebar {
  width: 260px;
  background-color: var(--bg-surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 100;
  transition: transform var(--trans-base);
}

.sidebar-header {
  height: 70px;
  display: flex;
  align-items: center;
  padding: 0 1.5rem;
  border-bottom: 1px solid var(--border);
}

.sidebar-menu {
  list-style: none;
  padding: 1.5rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  flex: 1;
  overflow-y: auto;
}

.sidebar-item a {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.9375rem;
  transition: all var(--trans-fast);
}

.sidebar-item a:hover {
  background-color: var(--bg-surface-elevated);
  color: var(--text-main);
}

.sidebar-item.active a {
  background: rgba(142, 166, 107, 0.16);
  color: var(--primary);
  font-weight: 600;
  border-left: 3px solid var(--primary);
}

.sidebar-footer {
  padding: 1.25rem 1rem;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Main Content Area */
.admin-main {
  flex: 1;
  margin-left: 260px;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

/* Admin Topbar */
.admin-topbar {
  height: 70px;
  background-color: var(--bg-glass);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  position: sticky;
  top: 0;
  z-index: 90;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.topbar-search {
  position: relative;
  width: 280px;
}

.topbar-search input {
  width: 100%;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 0.5rem 0.85rem 0.5rem 2.25rem;
  font-size: 0.875rem;
  color: var(--text-main);
}

.topbar-search span {
  position: absolute;
  left: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-faint);
  font-size: 0.85rem;
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Admin Container */
.admin-body {
  padding: 2rem;
  flex: 1;
}

/* KPI Cards Grid */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.kpi-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  position: relative;
  overflow: hidden;
}

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

.kpi-title {
  font-size: 0.875rem;
  color: var(--text-muted);
  font-weight: 500;
}

.kpi-icon-wrap {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: rgba(142, 166, 107, 0.15);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.kpi-value {
  font-family: var(--font-heading);
  font-size: 1.85rem;
  font-weight: 700;
  color: var(--text-main);
}

.kpi-trend {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.8125rem;
  font-weight: 600;
}

.trend-up { color: var(--success); }
.trend-down { color: var(--danger); }

/* Charts Section */
.charts-grid {
  display: grid;
  grid-template-columns: 2fr 1.15fr;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.chart-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.chart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

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

/* Data Tables */
.table-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  margin-bottom: 2rem;
}

.table-header-box {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

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

.admin-table th {
  background: var(--bg-surface-elevated);
  padding: 0.85rem 1.25rem;
  color: var(--text-muted);
  font-weight: 600;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.admin-table td {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

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

/* Admin Modals */
.admin-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(6px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: all 0.25s ease;
}

.admin-modal-overlay.open {
  opacity: 1;
  visibility: visible;
}

.admin-modal-dialog {
  background: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-xl);
  max-width: 640px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  padding: 2rem;
  position: relative;
  box-shadow: var(--shadow-lg);
}

/* Responsive adjustments */
@media (max-width: 1024px) {
  .admin-sidebar {
    transform: translateX(-100%);
  }
  .admin-sidebar.open {
    transform: translateX(0);
  }
  .admin-main {
    margin-left: 0;
  }
  .charts-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .admin-body {
    padding: 1.25rem;
  }
  .topbar-search {
    display: none;
  }
}