body, html {
  margin: 0;
  padding: 0;
  font-family: Arial, sans-serif;
  background: #f4f4f4;
}
.background {
  background: url('assets/background.jpg') no-repeat center center fixed;
  background-size: cover;
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  width: 100vw;
  z-index: -1;
  opacity: 0.3;
}
.container {
  max-width: 500px;
  margin: 50px auto;
  background: white;
  padding: 20px;
  border-radius: 10px;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
}
h1 {
  text-align: center;
  margin-bottom: 5px;
}
.subtitle {
  text-align: center;
  margin-bottom: 20px;
  color: #555;
}
form {
  display: flex;
  flex-direction: column;
}
label, input, select, button {
  margin-bottom: 15px;
}
input, select {
  padding: 8px;
}
button {
  background: #007bff;
  color: white;
  border: none;
  padding: 10px;
  cursor: pointer;
}
button:hover {
  background: #0056b3;
}
#notice {
  padding: 10px;
  background: #fff3cd;
  color: #856404;
  border: 1px solid #ffeeba;
  margin-bottom: 20px;
  border-radius: 5px;
}