:root {
  --primary-color: #1e88e5;
  --accent-color: #43a047;
  --background-color: #f9fafb;
  --surface-color: #ffffff;
  --table-header-bg: #e3f2fd;
  --table-hover-bg: #f1f8ff;
  --table-border: #ddd;
  --font-color: #333;
  --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 10px rgba(0, 0, 0, 0.08);
}

body {
  font-family: var(--font-family);
  background-color: var(--background-color);
  color: var(--font-color);
  margin: 0;
  padding: 24px;
  line-height: 1.6;
}

h1, h2, h3 {
  color: var(--primary-color);
  margin-top: 0;
}

form {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  background-color: var(--surface-color);
  padding: 20px;
  border-radius: 16px;
  box-shadow: var(--shadow-md);
  margin-bottom: 24px;
}

form label {
  font-weight: bold;
}

input[type="text"], select {
  padding: 10px 14px;
  border: 1px solid #ccc;
  border-radius: 10px;
  font-size: 1rem;
  min-width: 200px;
  flex: 1;
}

input[type="submit"] {
  background-color: var(--primary-color);
  color: white;
  border: none;
  padding: 12px 20px;
  border-radius: 10px;
  cursor: pointer;
  font-weight: bold;
  transition: background-color 0.3s ease;
}

input[type="submit"]:hover {
  background-color: #1565c0;
}

.table-wrapper {
  max-height: 600px;
  overflow-y: auto;
  overflow-x: auto;
  border: 1px solid #ccc;
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  background-color: var(--surface-color);
  margin-top: 20px;
}

table {
  width: 100%;
  border-collapse: collapse;
  table-layout: auto;
  min-width: 1000px;
}

thead th {
  background-color: var(--table-header-bg);
  position: sticky;
  top: 0;
  z-index: 2;
  white-space: nowrap;
  text-align: left;
  padding: 12px 16px;
  font-weight: bold;
  border-bottom: 2px solid var(--table-border);
  color: #2c3e50;
}

tbody td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--table-border);
  white-space: nowrap;
  color: #444;
}

tbody tr:hover {
  background-color: var(--table-hover-bg);
}

.error-message {
  color: #d32f2f;
  font-weight: bold;
  margin-top: 10px;
}

.recent-searches {
  background: var(--surface-color);
  padding: 20px;
  border-radius: 12px;
  margin-top: 30px;
  box-shadow: var(--shadow-md);
}

.recent-searches ul {
  padding-left: 20px;
  list-style: disc;
  margin: 0;
}

dl {
  background: var(--surface-color);
  padding: 20px;
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  margin-top: 20px;
}

dt {
  font-weight: bold;
  color: var(--primary-color);
  margin-top: 10px;
}

dd {
  margin-left: 20px;
  margin-bottom: 10px;
}