:root {
  --admin-sidebar: #1c2434;
  --admin-sidebar-text: #c9d1d9;
  --admin-accent: #2f6fed;
  --admin-bg: #f3f5f8;
  --admin-border: #e2e8f0;
}

.admin-body {
  margin: 0;
  background: var(--admin-bg);
  font-family: "Segoe UI", system-ui, sans-serif;
}

.admin-shell {
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: 100vh;
}

.admin-sidebar {
  background: var(--admin-sidebar);
  color: var(--admin-sidebar-text);
  display: flex;
  flex-direction: column;
  padding: 1.25rem 1rem;
}

.admin-brand a {
  color: #fff;
  font-weight: 700;
  text-decoration: none;
  font-size: 1.1rem;
  display: block;
}

.admin-brand span {
  display: block;
  font-size: 0.75rem;
  opacity: 0.7;
  margin-top: 0.15rem;
}

.admin-nav {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  margin-top: 1.5rem;
  flex: 1;
}

.admin-nav a {
  color: var(--admin-sidebar-text);
  text-decoration: none;
  padding: 0.65rem 0.85rem;
  border-radius: 0.5rem;
}

.admin-nav a:hover,
.admin-nav a.active {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.admin-nav a.active {
  background: var(--admin-accent);
}

.admin-sidebar-foot a,
.admin-sidebar-foot .admin-logout-btn {
  color: #9aa4b2;
  text-decoration: none;
  font-size: 0.875rem;
}

.admin-sidebar-foot .admin-logout-btn:hover {
  color: #fff;
}

.admin-main {
  display: flex;
  flex-direction: column;
}

.admin-topbar {
  background: #fff;
  border-bottom: 1px solid var(--admin-border);
  padding: 1rem 1.5rem;
}

.admin-content {
  padding: 1.5rem;
}

.admin-card {
  background: #fff;
  border: 1px solid var(--admin-border);
  border-radius: 0.75rem;
  padding: 1.25rem;
}

.admin-stat {
  background: #fff;
  border: 1px solid var(--admin-border);
  border-radius: 0.75rem;
  padding: 1rem 1.25rem;
}

.admin-stat .value {
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1.1;
}

.admin-stat .label {
  color: #64748b;
  font-size: 0.875rem;
}

@media (max-width: 900px) {
  .admin-shell {
    grid-template-columns: 1fr;
  }

  .admin-sidebar {
    min-height: auto;
  }
}

/* Bootstrap 5.1 uyumluluğu: text-bg-* (5.2+) sınıfları */
.badge.text-bg-primary { color: #fff !important; background-color: #0d6efd !important; }
.badge.text-bg-secondary { color: #fff !important; background-color: #6c757d !important; }
.badge.text-bg-success { color: #fff !important; background-color: #198754 !important; }
.badge.text-bg-danger { color: #fff !important; background-color: #dc3545 !important; }
.badge.text-bg-warning { color: #000 !important; background-color: #ffc107 !important; }
.badge.text-bg-info { color: #000 !important; background-color: #0dcaf0 !important; }
.badge.text-bg-dark { color: #fff !important; background-color: #212529 !important; }
.badge.text-bg-light { color: #000 !important; background-color: #f8f9fa !important; }