/* ==========================================================================
   STEM GLOBAL - MODERN EXECUTIVE ADMIN PANEL DESIGN SYSTEM
   ========================================================================== */

:root {
  --admin-navy-dark: #0B192C;
  --admin-navy-sidebar: #0f172a;
  --admin-navy-surface: #1e293b;
  --admin-primary: #1B3A6B;
  --admin-primary-light: #255294;
  --admin-teal: #0D7A8A;
  --admin-teal-light: #1299ac;
  --admin-gold: #F5A623;
  --admin-bg: #F4F6F9;
  --admin-card-bg: #FFFFFF;
  --admin-border: #E2E8F0;
  --admin-text-main: #1E293B;
  --admin-text-muted: #64748B;
  --admin-radius: 12px;
  --admin-radius-sm: 8px;
  --admin-shadow: 0 2px 10px rgba(0, 0, 0, 0.04), 0 1px 3px rgba(0, 0, 0, 0.02);
  --admin-shadow-hover: 0 10px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
}

/* Base Admin Container */
.admin-layout {
  display: flex;
  min-height: 100vh;
  background-color: var(--admin-bg);
  font-family: 'Poppins', system-ui, -apple-system, sans-serif;
  color: var(--admin-text-main);
}

/* Sidebar */
.admin-sidebar {
  width: 280px;
  min-width: 280px;
  background: var(--admin-navy-sidebar);
  color: #E2E8F0;
  display: flex;
  flex-direction: column;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1000;
  position: relative;
}

.admin-sidebar-header {
  padding: 24px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(0, 0, 0, 0.15);
}

.admin-brand-link {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: #FFFFFF;
}

.admin-brand-title {
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: 17px;
  letter-spacing: 0.5px;
  line-height: 1.2;
}

.admin-brand-badge {
  font-size: 10px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 20px;
  background: rgba(245, 166, 35, 0.15);
  color: var(--admin-gold);
  border: 1px solid rgba(245, 166, 35, 0.3);
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

/* Sidebar Navigation */
.admin-sidebar-nav {
  padding: 18px 12px;
  flex: 1;
  overflow-y: auto;
}

.admin-nav-section-title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  color: #64748B;
  letter-spacing: 1px;
  padding: 14px 12px 6px 12px;
  margin: 0;
}

.admin-nav-list {
  list-style: none;
  padding: 0;
  margin: 0 0 12px 0;
}

.admin-nav-item {
  margin-bottom: 3px;
}

.admin-nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: var(--admin-radius-sm);
  color: #94A3B8;
  text-decoration: none;
  font-size: 13.5px;
  font-weight: 500;
  transition: all 0.2s ease;
}

.admin-nav-link i {
  font-size: 16px;
  width: 20px;
  text-align: center;
  transition: transform 0.2s ease;
}

.admin-nav-link:hover {
  background: rgba(255, 255, 255, 0.06);
  color: #FFFFFF;
}

.admin-nav-link:hover i {
  transform: translateX(2px);
  color: var(--admin-gold);
}

.admin-nav-link.active {
  background: var(--admin-primary);
  color: #FFFFFF;
  font-weight: 600;
  box-shadow: 0 4px 12px rgba(27, 58, 107, 0.4);
}

.admin-nav-link.active i {
  color: var(--admin-gold);
}

.admin-nav-badge {
  margin-left: auto;
  font-size: 11px;
  padding: 2px 7px;
  border-radius: 12px;
  font-weight: 700;
}

/* Sidebar Footer */
.admin-sidebar-footer {
  padding: 16px 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(0, 0, 0, 0.2);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.admin-user-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--admin-teal), var(--admin-primary));
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  border: 2px solid rgba(255, 255, 255, 0.15);
}

.admin-user-info {
  display: flex;
  flex-direction: column;
}

.admin-user-name {
  font-size: 13px;
  font-weight: 600;
  color: #FFFFFF;
}

.admin-user-role {
  font-size: 11px;
  color: #94A3B8;
}

/* Top Navbar */
.admin-topbar {
  height: 64px;
  background: #FFFFFF;
  border-bottom: 1px solid var(--admin-border);
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 99;
}

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

.admin-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--admin-text-muted);
  margin: 0;
}

.admin-breadcrumb a {
  color: var(--admin-text-muted);
  text-decoration: none;
}

.admin-breadcrumb a:hover {
  color: var(--admin-primary);
}

.admin-topbar-right {
  display: flex;
  align-items: center;
  gap: 14px;
}

/* Main Content Area */
.admin-main-wrap {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow-x: hidden;
}

.admin-content {
  padding: 32px 32px 60px 32px;
  flex: 1;
}

/* Page Header */
.admin-page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
  flex-wrap: wrap;
  gap: 16px;
}

.admin-page-title {
  font-family: 'Montserrat', sans-serif;
  font-size: 24px;
  font-weight: 800;
  color: var(--admin-primary);
  margin: 0 0 4px 0;
}

.admin-page-subtitle {
  font-size: 13.5px;
  color: var(--admin-text-muted);
  margin: 0;
}

/* Stats KPI Cards */
.admin-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin-bottom: 32px;
}

.admin-stat-card {
  background: #FFFFFF;
  border-radius: var(--admin-radius);
  padding: 22px 24px;
  border: 1px solid var(--admin-border);
  box-shadow: var(--admin-shadow);
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: all 0.25s ease;
  position: relative;
  overflow: hidden;
}

.admin-stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent-color, var(--admin-primary));
  opacity: 0;
  transition: opacity 0.25s ease;
}

.admin-stat-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--admin-shadow-hover);
}

.admin-stat-card:hover::before {
  opacity: 1;
}

.admin-stat-info h4 {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--admin-text-muted);
  margin: 0 0 8px 0;
}

.admin-stat-value {
  font-family: 'Montserrat', sans-serif;
  font-size: 30px;
  font-weight: 800;
  color: var(--admin-primary);
  line-height: 1;
  margin: 0 0 8px 0;
}

.admin-stat-meta {
  font-size: 12px;
  color: var(--admin-text-muted);
  margin: 0;
  display: flex;
  align-items: center;
  gap: 4px;
}

.admin-stat-icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: var(--icon-bg, rgba(27, 58, 107, 0.08));
  color: var(--icon-color, var(--admin-primary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}

/* Card Containers */
.admin-card {
  background: #FFFFFF;
  border-radius: var(--admin-radius);
  border: 1px solid var(--admin-border);
  box-shadow: var(--admin-shadow);
  margin-bottom: 28px;
  overflow: hidden;
}

.admin-card-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--admin-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  background: #FFFFFF;
}

.admin-card-title {
  font-family: 'Montserrat', sans-serif;
  font-size: 17px;
  font-weight: 700;
  color: var(--admin-primary);
  margin: 0;
  display: flex;
  align-items: center;
  gap: 8px;
}

.admin-card-body {
  padding: 24px;
}

/* Tables */
.admin-table {
  width: 100%;
  border-collapse: collapse;
  margin: 0;
}

.admin-table th {
  background: #F8FAFC;
  padding: 12px 18px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--admin-text-muted);
  border-bottom: 1px solid var(--admin-border);
  white-space: nowrap;
}

.admin-table td {
  padding: 16px 18px;
  font-size: 13.5px;
  color: var(--admin-text-main);
  border-bottom: 1px solid var(--admin-border);
  vertical-align: middle;
}

.admin-table tr:hover td {
  background-color: #F8FAFC;
}

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

/* Status Badges */
.admin-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 11.5px;
  font-weight: 600;
  white-space: nowrap;
}

.admin-badge-success {
  background: #DEF7EC;
  color: #03543F;
}

.admin-badge-warning {
  background: #FEF08A;
  color: #854D0E;
}

.admin-badge-danger {
  background: #FDE8E8;
  color: #9B1C1C;
}

.admin-badge-info {
  background: #E1EFFE;
  color: #1E429F;
}

.admin-badge-purple {
  background: #EDEBFE;
  color: #5521B5;
}

.admin-badge-neutral {
  background: #F1F5F9;
  color: #475569;
}

/* Buttons */
.admin-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 18px;
  border-radius: var(--admin-radius-sm);
  font-size: 13.5px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s ease;
  border: 1px solid transparent;
}

.admin-btn-primary {
  background: var(--admin-primary);
  color: #FFFFFF;
}

.admin-btn-primary:hover {
  background: var(--admin-primary-light);
  color: #FFFFFF;
  box-shadow: 0 4px 12px rgba(27, 58, 107, 0.25);
}

.admin-btn-gold {
  background: var(--admin-gold);
  color: var(--admin-primary);
  font-weight: 700;
}

.admin-btn-gold:hover {
  background: #e0961b;
  color: var(--admin-primary);
}

.admin-btn-teal {
  background: var(--admin-teal);
  color: #FFFFFF;
}

.admin-btn-teal:hover {
  background: var(--admin-teal-light);
  color: #FFFFFF;
}

.admin-btn-outline {
  background: transparent;
  border-color: var(--admin-border);
  color: var(--admin-text-main);
}

.admin-btn-outline:hover {
  background: #F8FAFC;
  border-color: #CBD5E1;
}

.admin-btn-danger-outline {
  background: transparent;
  border-color: #F8B4B4;
  color: #E02424;
}

.admin-btn-danger-outline:hover {
  background: #FDE8E8;
}

.admin-btn-sm {
  padding: 6px 12px;
  font-size: 12.5px;
}

.admin-btn-icon {
  width: 32px;
  height: 32px;
  padding: 0;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* Filter Toolbar */
.admin-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 14px;
}

.admin-search-input {
  padding: 9px 14px 9px 38px;
  border-radius: var(--admin-radius-sm);
  border: 1px solid var(--admin-border);
  font-size: 13.5px;
  min-width: 280px;
  background: #FFFFFF;
  outline: none;
  transition: all 0.2s ease;
}

.admin-search-input:focus {
  border-color: var(--admin-teal);
  box-shadow: 0 0 0 3px rgba(13, 122, 138, 0.12);
}

.admin-search-wrap {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.admin-search-wrap i {
  position: absolute;
  left: 12px;
  color: var(--admin-text-muted);
  font-size: 14px;
}

/* Modals */
.admin-modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(11, 25, 44, 0.6);
  backdrop-filter: blur(4px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.admin-modal-dialog {
  background: #FFFFFF;
  border-radius: var(--admin-radius);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
  width: 100%;
  max-width: 650px;
  max-height: 90vh;
  overflow-y: auto;
  border: 1px solid var(--admin-border);
  animation: adminModalIn 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes adminModalIn {
  from {
    opacity: 0;
    transform: scale(0.96) translateY(8px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.admin-modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--admin-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.admin-modal-title {
  font-family: 'Montserrat', sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--admin-primary);
  margin: 0;
}

.admin-modal-body {
  padding: 24px;
}

.admin-modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--admin-border);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  background: #F8FAFC;
}

/* Responsive */
@media (max-width: 992px) {
  .admin-sidebar {
    position: fixed;
    top: 0;
    bottom: 0;
    left: -280px;
  }
  .admin-sidebar.open {
    left: 0;
  }
  .admin-content {
    padding: 20px 16px;
  }
}