:root {
  --sidebar-w: 230px;
  --brand: #4f46e5;
  --bg: #f4f5f9;
}

body {
  background: var(--bg);
}

.admin-sidebar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--sidebar-w);
  background: #111827;
  color: #e5e7eb;
  padding: 1.25rem 0.75rem;
}

.admin-sidebar .brand {
  font-weight: 700;
  font-size: 1.15rem;
  color: #fff;
  padding: 0 0.5rem 1rem;
  display: block;
}

.admin-sidebar a {
  color: #cbd5e1;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.55rem 0.7rem;
  border-radius: 0.4rem;
  margin-bottom: 0.15rem;
  font-size: 0.92rem;
}

.admin-sidebar a:hover,
.admin-sidebar a.active {
  background: var(--brand);
  color: #fff;
}

.admin-main {
  margin-left: var(--sidebar-w);
  padding: 1.75rem 2rem;
}

.stat-card {
  border: none;
  border-radius: 0.6rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.stat-card .stat-value {
  font-size: 1.9rem;
  font-weight: 700;
}

.card {
  border: none;
  border-radius: 0.6rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.btn-brand {
  background: var(--brand);
  border-color: var(--brand);
  color: #fff;
}

.btn-brand:hover {
  background: #4338ca;
  border-color: #4338ca;
  color: #fff;
}

.slug-preview {
  font-family: monospace;
  font-size: 0.85rem;
  color: #6b7280;
}

@media (max-width: 768px) {
  .admin-sidebar {
    position: static;
    width: 100%;
  }
  .admin-main {
    margin-left: 0;
  }
}