:root {
  --b2b-primary: #1e40af;
  --b2b-bg: #f8fafc;
  --b2b-card-bg: #ffffff;
  --b2b-text-primary: #0f172a;
  --b2b-text-secondary: #475569;
  --b2b-text-muted: #94a3b8;
  --b2b-border: #e2e8f0;
  --b2b-border-hover: #94a3b8;
  --b2b-border-success: #a7f3d0;
  --b2b-border-info: #bfdbfe;
  --b2b-border-danger: #fecaca;
  --b2b-border-warning: #fbbf24;
  --b2b-btn-radius: 6px;
  --b2b-stat-radius: 8px;
}

.b2b-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  padding: 0.5rem 1rem;
  border-radius: var(--b2b-btn-radius);
  font-weight: 500;
  font-size: 0.8125rem;
  line-height: 1.4;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: all 0.15s ease;
  position: relative;
}
.b2b-btn:active {
  transform: scale(0.97);
}

.b2b-btn-primary {
  background: #0f172a;
  color: #fff;
}
.b2b-btn-primary:hover {
  background: #1e293b;
}

.b2b-btn-secondary {
  background: transparent;
  color: var(--b2b-text-secondary);
  border: 1px solid var(--b2b-border);
}
.b2b-btn-secondary:hover {
  background: var(--b2b-bg);
  border-color: var(--b2b-border-hover);
  color: var(--b2b-text-primary);
}

.b2b-btn-outline {
  background: transparent;
  color: var(--b2b-text-primary);
  border: 1px solid var(--b2b-border);
}
.b2b-btn-outline:hover {
  background: var(--b2b-bg);
  border-color: var(--b2b-primary);
  color: var(--b2b-primary);
}

.b2b-btn-sm {
  padding: 0.3125rem 0.75rem;
  font-size: 0.75rem;
  gap: 0.25rem;
}

.b2b-btn-lg {
  padding: 0.625rem 1.25rem;
  font-size: 0.875rem;
  gap: 0.5rem;
}

.b2b-btn-primary.b2b-btn-outline {
  background: transparent;
  color: var(--b2b-primary);
  border: 1px solid var(--b2b-primary);
}
.b2b-btn-primary.b2b-btn-outline:hover {
  background: var(--b2b-primary);
  color: #fff;
}

.b2b-card {
  background: var(--b2b-card-bg);
  border: 1px solid var(--b2b-border);
  border-radius: var(--b2b-stat-radius);
  padding: 1rem;
  transition: all 0.2s ease;
}

.b2b-card-header {
  background: #0f172a;
  color: #fff;
  padding: 1.25rem 1.5rem;
  border-radius: var(--b2b-stat-radius) var(--b2b-stat-radius) 0 0;
  font-weight: 600;
}

.b2b-card:hover {
  box-shadow: 0 4px 12px rgba(0,0,0,0.06);
}

.b2b-input {
  width: 100%;
  padding: 0.5625rem 0.875rem;
  border: 1px solid var(--b2b-border);
  border-radius: 6px;
  font-size: 0.8125rem;
  color: var(--b2b-text-primary);
  background: #fff;
  outline: none;
  transition: all 0.15s ease;
}
.b2b-input:focus {
  border-color: var(--b2b-primary);
  box-shadow: 0 0 0 3px rgba(30,64,175,0.1);
}

.b2b-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8125rem;
}
.b2b-table th {
  background: var(--b2b-bg);
  color: var(--b2b-text-secondary);
  font-weight: 600;
  padding: 0.625rem 0.75rem;
  text-align: left;
  border-bottom: 2px solid var(--b2b-border);
}
.b2b-table td {
  padding: 0.625rem 0.75rem;
  border-bottom: 1px solid var(--b2b-border);
  color: var(--b2b-text-primary);
}

.b2b-badge {
  display: inline-block;
  padding: 0.125rem 0.5rem;
  border-radius: 9999px;
  font-size: 0.6875rem;
  font-weight: 600;
  color: #fff;
}

.b2b-alert {
  padding: 0.75rem 1rem;
  border-radius: 6px;
  font-size: 0.8125rem;
  line-height: 1.5;
}

.b2b-alert-success {
  background: #ecfdf5;
  color: #065f46;
  border: 1px solid var(--b2b-border-success);
}

.b2b-alert-info {
  background: #eff6ff;
  color: #1e40af;
  border: 1px solid var(--b2b-border-info);
}

.b2b-alert-danger {
  background: #fef2f2;
  color: #991b1b;
  border: 1px solid var(--b2b-border-danger);
}

.b2b-text-primary {
  color: var(--b2b-text-primary);
}

.b2b-text-secondary {
  color: var(--b2b-text-secondary);
}

.b2b-text-muted {
  color: var(--b2b-text-muted);
}

.b2b-text-white {
  color: #fff;
}

.b2b-stat-card {
  background: var(--b2b-card-bg);
  border: 1px solid var(--b2b-border);
  border-radius: var(--b2b-stat-radius);
  padding: 1rem;
  transition: all 0.2s ease;
  text-align: center;
}

.b2b-stat-card:hover {
  box-shadow: 0 4px 12px rgba(0,0,0,0.06);
  transform: translateY(-2px);
}

.animate-item {
  animation: fadeInUp 0.5s ease forwards;
  opacity: 0;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(15px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.page-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--b2b-text-primary);
}

.b2b-grid-cols-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.b2b-grid-cols-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.b2b-grid-cols-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

@media (max-width: 640px) {
  .b2b-grid-cols-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .b2b-grid-cols-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .b2b-grid-cols-2 {
    grid-template-columns: 1fr;
  }
}