* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  color: #1a1a1a;
  background: #f5f5f5;
  padding: 2rem;
}

.container {
  max-width: 960px;
  margin: 0 auto;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}

h1 {
  font-size: 1.5rem;
  font-weight: 600;
}

.btn {
  display: inline-block;
  padding: 0.5rem 1rem;
  border: 1px solid #ccc;
  border-radius: 4px;
  background: #fff;
  color: #333;
  text-decoration: none;
  font-size: 0.875rem;
  cursor: pointer;
}

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

.btn-primary:hover {
  background: #1d4ed8;
}

table {
  width: 100%;
  background: #fff;
  border-radius: 6px;
  border-collapse: collapse;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

th, td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid #eee;
  font-size: 0.875rem;
}

th {
  font-weight: 600;
  color: #666;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

tr:last-child td {
  border-bottom: none;
}

.badge {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 500;
}

.badge-creating {
  background: #fef3c7;
  color: #92400e;
}

.badge-done {
  background: #d1fae5;
  color: #065f46;
}

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

.error-detail {
  color: #991b1b;
  font-size: 0.8rem;
  background: #fef2f2;
}

.empty-state {
  text-align: center;
  padding: 3rem;
  background: #fff;
  border-radius: 6px;
  color: #666;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.report-form {
  background: #fff;
  padding: 2rem;
  border-radius: 6px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  max-width: 480px;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.375rem;
  font-weight: 500;
  font-size: 0.875rem;
}

.form-group select,
.form-group input {
  width: 100%;
  padding: 0.5rem 0.75rem;
  border: 1px solid #d1d5db;
  border-radius: 4px;
  font-size: 0.875rem;
}

a {
  color: #2563eb;
}