:root {
  --primary: #2563eb;
  --success: #16a34a;
  --warning: #f59e0b;
  --danger: #dc2626;
  --text: #0f172a;
  --muted: #64748b;
  --border: #e2e8f0;
  --bg: #f8fafc;
  --white: #ffffff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  color: var(--text);
  background: var(--bg);
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 20px 16px 40px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.breadcrumbs {
  font-weight: 600;
  font-size: 16px;
}

.brand {
  font-weight: 700;
  font-size: 18px;
}

.tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 8px 0 4px;
  margin-bottom: 12px;
}

.tab {
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 13px;
  cursor: pointer;
  white-space: nowrap;
}

.tab.active {
  border-color: #c7d2fe;
  background: #eef2ff;
  color: #1e1b4b;
  font-weight: 600;
}

.section {
  margin: 24px 0;
}

.section-title {
  font-weight: 600;
  margin-bottom: 12px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.06);
}

.card-title {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 6px;
  text-transform: uppercase;
}

.metric {
  font-size: 24px;
  font-weight: 700;
}

.muted {
  color: var(--muted);
  font-size: 13px;
}

.row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
}

.gap {
  gap: 12px;
}

.btn {
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 10px 14px;
  font-weight: 600;
  cursor: pointer;
}

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

.btn-secondary {
  background: #eef2ff;
  color: #1e1b4b;
  border-color: #e0e7ff;
}

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

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}

.badge-success {
  background: #dcfce7;
  color: #166534;
}

.badge-danger {
  background: #fee2e2;
  color: #991b1b;
}

.badge-muted {
  background: #f1f5f9;
  color: #475569;
}

.toast {
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 13px;
}

.toast-success {
  background: #dcfce7;
  color: #166534;
}

.toast-danger {
  background: #fee2e2;
  color: #991b1b;
}

.form-grid {
  display: grid;
  gap: 12px;
  max-width: 520px;
}

.field {
  display: grid;
  gap: 6px;
}

.label {
  font-size: 13px;
  font-weight: 600;
}

.input,
.select {
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #fff;
  font-size: 14px;
}

.input.error {
  border-color: var(--danger);
}

.helper {
  font-size: 12px;
  color: var(--muted);
}

.error-text {
  font-size: 12px;
  color: var(--danger);
}

.list {
  display: grid;
  gap: 12px;
}

.list-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
}

.list-title {
  font-weight: 600;
  font-size: 14px;
}

@media (max-width: 1100px) {
  .card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 820px) {
  .topbar {
    flex-direction: column;
    align-items: flex-start;
  }
  .card-grid {
    grid-template-columns: 1fr;
  }
}