body {
  font-family: Arial, sans-serif;
  background: #f5f7fb;
  margin: 0;
  color: #1f2937;
}

.container {
  max-width: 1200px;
  margin: 32px auto;
  padding: 24px;
}

.container.narrow {
  max-width: 900px;
}

h1, h2 {
  margin-top: 0;
}

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin: 20px 0 24px;
}

.card, .summary-box {
  background: white;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 4px 14px rgba(0,0,0,0.04);
}

.card span {
  display: block;
  color: #6b7280;
  margin-bottom: 8px;
}

.card strong {
  font-size: 1.5rem;
}

.actions {
  margin: 16px 0 24px;
}

.button {
  display: inline-block;
  padding: 10px 14px;
  border-radius: 8px;
  border: 1px solid #d1d5db;
  text-decoration: none;
  color: #111827;
  background: white;
  cursor: pointer;
}

.button.primary {
  background: #2563eb;
  border-color: #2563eb;
  color: white;
}

.button.ghost {
  background: transparent;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

label {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.95rem;
}

input, select, button {
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid #d1d5db;
  font-size: 1rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: white;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  overflow: hidden;
}

thead {
  background: #eef2ff;
}

th, td {
  padding: 12px 14px;
  border-bottom: 1px solid #e5e7eb;
  text-align: left;
}

.alert {
  padding: 12px 14px;
  border-radius: 8px;
  margin: 16px 0;
}

.alert.error {
  background: #fef2f2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
}