body {
  background: #f4f6fa;
}

.landing-hero {
  background: linear-gradient(120deg, #e2e8f0 0%, #f8fafc 45%, #dbeafe 100%);
  border: 1px solid #d6deec;
}

.app-shell {
  min-height: 100vh;
}

.main-content {
  min-height: 100vh;
  padding: 4.25rem 1rem 1rem;
  transition: margin-left 0.25s ease;
}

.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1040;
  width: min(280px, 84vw);
  height: 100vh;
  padding: 1.25rem 0;
  background: #0f172a;
  color: #f8fafc;
  transform: translateX(-100%);
  transition: transform 0.25s ease, width 0.25s ease;
  overflow-y: auto;
}

.sidebar .nav-link {
  color: #cbd5e1;
  border-radius: 0.5rem;
  white-space: nowrap;
}

.sidebar .nav-link:hover {
  background: #1e293b;
  color: #ffffff;
}

.sidebar-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
  z-index: 1030;
}

.menu-toggle {
  position: fixed;
  top: 0.9rem;
  left: 0.9rem;
  z-index: 1050;
  width: 42px;
  height: 42px;
  padding: 0;
  border-radius: 0.65rem;
}

.menu-toggle span {
  line-height: 1;
  font-size: 1.1rem;
}

.sidebar-open .sidebar {
  transform: translateX(0);
}

.sidebar-open .sidebar-overlay {
  opacity: 1;
  pointer-events: auto;
}

.sidebar-open {
  overflow: hidden;
}

.metric-card {
  border: 1px solid #dbe3f1;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.05);
}

.product-thumb {
  width: 68px;
  height: 68px;
  border-radius: 0.8rem;
  object-fit: cover;
  border: 1px solid #d9e0ef;
}

.product-hero-image {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: 0.75rem;
  margin-bottom: 0.8rem;
}

@media (min-width: 992px) {
  .menu-toggle {
    display: none;
  }

  .sidebar {
    transform: translateX(0);
  }

  .main-content {
    margin-left: 280px;
    padding: 1.5rem;
  }

  .sidebar-collapsed .sidebar {
    width: 88px;
  }

  .sidebar-collapsed .main-content {
    margin-left: 88px;
  }

  .sidebar-collapsed .sidebar h5,
  .sidebar-collapsed .sidebar .nav-link,
  .sidebar-collapsed .sidebar form {
    overflow: hidden;
  }
}