body { font-family: sans-serif; margin: 20px; }
.inputs { margin-bottom: 20px; }
input, button { padding: 8px; margin-right: 10px; }
table { width: 100%; border-collapse: collapse; margin-top: 20px; }
th, td { border: 1px solid #ccc; padding: 8px; text-align: left; }
th { background-color: #f2f2f2; }
#summary { border: 1px solid #ccc; padding: 15px; margin-top: 20px; background-color: #fafafa; }