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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
  padding: 20px;
}

.container {
  max-width: 800px;
  margin: 0 auto;
  background: white;
  border-radius: 10px;
  padding: 40px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

header {
  text-align: center;
  margin-bottom: 40px;
}

h1 {
  color: #333;
  font-size: 2.5rem;
  margin-bottom: 10px;
}

.subtitle {
  color: #666;
  font-size: 1.1rem;
}

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

.search-box form {
  display: flex;
  gap: 10px;
}

.search-box input {
  flex: 1;
  padding: 15px;
  border: 2px solid #ddd;
  border-radius: 5px;
  font-size: 1rem;
}

.search-box input:focus {
  outline: none;
  border-color: #667eea;
}

.search-box button {
  padding: 15px 30px;
  background: #667eea;
  color: white;
  border: none;
  border-radius: 5px;
  font-size: 1rem;
  cursor: pointer;
  transition: background 0.3s;
}

.search-box button:hover {
  background: #5568d3;
}

.results {
  background: #f8f9fa;
  padding: 20px;
  border-radius: 5px;
  margin-bottom: 30px;
}

.results h2 {
  color: #333;
  margin-bottom: 15px;
}

.result-item {
  background: white;
  padding: 15px;
  border-radius: 5px;
  margin-bottom: 10px;
}

.query-display {
  color: #667eea;
  font-weight: bold;
}

.no-results {
  color: #999;
  font-style: italic;
  margin-top: 10px;
}

.hint-box {
  background: #fff3cd;
  padding: 20px;
  border-radius: 5px;
  border-left: 4px solid #ffc107;
  margin-bottom: 20px;
}

.hint-box h3 {
  color: #856404;
  margin-bottom: 15px;
}

.hint-box details {
  margin-bottom: 10px;
  cursor: pointer;
}

.hint-box summary {
  font-weight: bold;
  color: #856404;
  padding: 10px;
  background: white;
  border-radius: 3px;
  margin-bottom: 5px;
}

.hint-box p {
  color: #664d03;
  padding: 10px;
  margin-left: 10px;
}

.info-box {
  background: #d1ecf1;
  padding: 20px;
  border-radius: 5px;
  border-left: 4px solid #17a2b8;
}

.info-box h3 {
  color: #0c5460;
  margin-bottom: 10px;
}

.info-box p {
  color: #0c5460;
}

.info-box code {
  background: #bee5eb;
  padding: 2px 6px;
  border-radius: 3px;
  font-family: 'Courier New', monospace;
}