body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background: #f9f9f9;
  color: #333;
}
header {
  text-align: center;
  background: #ffffff;
  padding-bottom: 1em;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}
.header-image {
  width: 100%;
  max-height: 200px;
  object-fit: cover;
  border-bottom: 1px solid #ccc;
}
main {
  max-width: 600px;
  margin: 2em auto;
  background: white;
  padding: 1.5em;
  border-radius: 8px;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
}
label, fieldset {
  display: block;
  margin-bottom: 1em;
}
input, textarea {
  width: 100%;
  padding: 0.6em;
  border: 1px solid #ccc;
  border-radius: 4px;
}
button {
  background-color: #28a745;
  color: white;
  padding: 1em;
  width: 100%;
  font-size: 1.1em;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}
footer {
  text-align: center;
  font-size: 0.9em;
  padding: 1em;
  background: #eee;
  margin-top: 2em;
}