body {
  font-family: Arial, sans-serif;
  background: url('../img/bg.jpg') no-repeat center center fixed;
  background-size: cover;
  color: #333;
}
.container {
  max-width: 700px;
  margin: auto;
  padding: 20px;
  background: #fff;
  border-radius: 10px;
}
input, select, button {
  display: block;
  width: 100%;
  margin: 10px 0;
  padding: 8px;
}
.alert {
  background-color: #ffefc5;
  padding: 10px;
  border: 1px solid #f0c000;
  border-radius: 5px;
  font-weight: bold;
  text-align: center;
}
table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
}
table td, table th {
  padding: 8px;
  border: 1px solid #ccc;
}