* {
  box-sizing: border-box;
}

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

a {
  color: inherit;
  text-decoration: none;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px;
}

.card {
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 6px 20px rgba(15, 23, 42, 0.06);
}

.row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.col {
  flex: 1 1 240px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid #d1d5db;
  background: #fff;
  color: #111827;
  padding: 8px 12px;
  border-radius: 8px;
  font-weight: 700;
  cursor: pointer;
}

.btn.primary {
  background: #2563eb;
  border-color: #2563eb;
  color: #fff;
}

.btn.danger {
  background: #ef4444;
  border-color: #ef4444;
  color: #fff;
}

.badge {
  font-size: 11px;
  font-weight: 700;
  padding: 4px 8px;
  border-radius: 999px;
  background: #e5e7eb;
  color: #374151;
}

.badge.active {
  background: #dcfce7;
  color: #166534;
}

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

.nav {
  background: #111827;
  color: #e5e7eb;
  padding: 16px 24px;
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.nav-links a {
  padding: 6px 10px;
  border-radius: 8px;
  font-weight: 700;
  color: #e5e7eb;
}

.nav-links a.active {
  background: #1d4ed8;
  color: #fff;
}

.table {
  width: 100%;
  border-collapse: collapse;
}

.table th,
.table td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid #e5e7eb;
  vertical-align: top;
}

.table th {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #6b7280;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.field label {
  font-size: 12px;
  font-weight: 700;
  color: #6b7280;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.field input,
.field select,
.field textarea {
  padding: 10px 12px;
  border: 1px solid #d1d5db;
  border-radius: 8px;
  font-size: 14px;
}

.flash {
  padding: 12px 14px;
  border-radius: 10px;
  margin-bottom: 16px;
  font-weight: 700;
}

.flash.info {
  background: #eff6ff;
  color: #1d4ed8;
}

.flash.success {
  background: #ecfccb;
  color: #365314;
}

.flash.error {
  background: #fee2e2;
  color: #991b1b;
}

.muted {
  color: #6b7280;
  font-size: 13px;
}