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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #f5f5f5;
  padding: 20px;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  background-color: #fff;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

h1 {
  margin-bottom: 10px;
  color: #2c3e50;
  text-align: center;
}

.author {
  text-align: center;
  color: #7f8c8d;
  font-size: 14px;
  margin-bottom: 20px;
}

h2 {
  margin: 20px 0;
  color: #2c3e50;
}

.search-form {
  margin-bottom: 30px;
}

textarea, input {
  width: 100%;
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-family: inherit;
  font-size: 14px;
  margin-bottom: 10px;
}

.form-row {
  display: flex;
  gap: 20px;
  margin-bottom: 10px;
}

.form-row label {
  flex: 1;
}

.form-row input {
  width: 60px;
  display: inline-block;
  margin: 0 0 0 5px;
}

button {
  background-color: #3498db;
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 16px;
  width: 100%;
}

button:hover {
  background-color: #2980b9;
}

.loading {
  display: none;
  text-align: center;
  margin: 20px 0;
  font-style: italic;
  color: #666;
}

.results-container {
  margin-top: 20px;
}

.results {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 20px;
}

th, td {
  padding: 10px;
  border: 1px solid #ddd;
  text-align: left;
}

th {
  background-color: #f2f2f2;
}

tr:nth-child(even) {
  background-color: #f9f9f9;
}

.error {
  color: #e74c3c;
  padding: 10px;
  background-color: #fadbd8;
  border-radius: 4px;
  margin-top: 10px;
}