/* Admin Management Portal CSS */

.admin-layout {
  display: flex;
  min-height: 100vh;
  background-color: var(--surface-100);
}

/* Admin Sidebar */
.admin-sidebar {
  width: var(--sidebar-width);
  background: var(--surface-900);
  color: var(--surface-300);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  z-index: 95;
}

.admin-sidebar-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.admin-brand {
  font-size: 1.1rem;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: -0.01em;
}

.admin-nav-section {
  padding: 1rem 0.75rem 0.25rem;
}

.admin-nav-title {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--surface-500);
  padding: 0 0.75rem 0.5rem;
}

.admin-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.admin-nav-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 0.85rem;
  color: var(--surface-400);
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

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

.admin-nav-item.active {
  color: #ffffff;
  background: var(--primary-500);
}

.admin-nav-badge {
  margin-left: auto;
  padding: 0.15rem 0.45rem;
  font-size: 0.7rem;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.2);
  color: #ffffff;
}

.admin-sidebar-footer {
  margin-top: auto;
  padding: 1rem 1.25rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(0, 0, 0, 0.2);
}

.admin-user-card {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.admin-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--primary-600);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
}

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

.admin-topbar {
  background: var(--surface-0);
  height: 64px;
  border-bottom: 1px solid var(--surface-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  position: sticky;
  top: 0;
  z-index: 80;
  box-shadow: var(--shadow-xs);
}

.admin-content {
  padding: 2rem;
  flex: 1;
}

/* KPI Widgets */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.kpi-card {
  background: var(--surface-0);
  border: 1px solid var(--surface-200);
  border-radius: var(--radius-xl);
  padding: 1.25rem 1.5rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}

.kpi-icon {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.kpi-icon.primary { background: var(--primary-100); color: var(--primary-700); }
.kpi-icon.warning { background: var(--status-pending-bg); color: var(--status-pending-text); }
.kpi-icon.info { background: var(--status-review-bg); color: var(--status-review-text); }
.kpi-icon.success { background: var(--status-approved-bg); color: var(--status-approved-text); }

.kpi-value {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--surface-900);
  line-height: 1.1;
  margin-top: 0.25rem;
}

/* Filter Bar */
.filter-bar {
  background: var(--surface-0);
  border: 1px solid var(--surface-200);
  border-radius: var(--radius-lg);
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.85rem;
}

/* Application Reviewer Split View */
.review-workspace {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  height: calc(100vh - 180px);
}

.review-panel {
  background: var(--surface-0);
  border: 1px solid var(--surface-200);
  border-radius: var(--radius-xl);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.review-panel-header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--surface-200);
  background: var(--surface-50);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.review-panel-body {
  padding: 1.25rem;
  overflow-y: auto;
  flex: 1;
}

.proof-viewer-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--surface-900);
  padding: 1rem;
  border-radius: var(--radius-lg);
  position: relative;
  min-height: 380px;
}

.proof-viewer-img {
  max-width: 100%;
  max-height: 480px;
  object-fit: contain;
  transition: transform var(--transition-base);
}

/* Audit Diff Box */
.diff-box {
  background: var(--surface-900);
  color: #E2E8F0;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 1rem;
  border-radius: var(--radius-md);
  overflow-x: auto;
  line-height: 1.5;
}

.diff-add { color: #4ADE80; }
.diff-remove { color: #F87171; }