:root {
  --primary-color: #4CAF50;
  --secondary-color: #f5f5f5;
  --text-color: #333;
  --border-radius: 12px;
}

body {
  font-family: 'Segoe UI', sans-serif;
  background: #f3f4f6;
  margin: 0;
  padding: 0;
  color: var(--text-color);
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: 30px auto;
  padding: 20px;
}

.card {
  background: white;
  padding: 24px;
  margin: 20px 0;
  border-radius: var(--border-radius);
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

h1, h2 {
  color: #111827;
}

input, select, textarea {
  width: 100%;
  padding: 10px;
  margin-top: 8px;
  margin-bottom: 16px;
  border: 1px solid #d1d5db;
  border-radius: var(--border-radius);
  font-size: 16px;
  box-sizing: border-box;
}

button, .btn {
  display: inline-block;
  background: var(--primary-color);
  color: white;
  padding: 12px 24px;
  border: none;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  margin: 5px 0;
  transition: background-color 0.3s;
  cursor: pointer;
}

button:hover, .btn:hover {
  background: #388E3C;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: white;
  margin-top: 20px;
}

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

table th {
  background-color: #f9fafb;
  color: #374151;
}

a {
  color: #2563eb;
}

a:hover {
  text-decoration: underline;
}