body {
  font-family: Arial, sans-serif;
  background-color: #f8f8f8;
  color: #222;
  margin: 0;
  padding: 20px;
}

h1 {
  text-align: center;
  margin-bottom: 10px;
}

p {
  text-align: center;
  margin-bottom: 20px;
}

form {
  max-width: 500px;
  margin: 0 auto;
  background: #fff;
  padding: 20px;
  border: 1px solid #ccc;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}

label {
  font-weight: bold;
  display: block;
  margin-top: 12px;
}

textarea {
  width: 100%;
  height: 80px;
  padding: 8px;
  margin-top: 4px;
  border: 1px solid #ccc;
  border-radius: 4px;
  resize: vertical;
}

iframe {
    display: flex;
    justify-content: center;
    margin-top: 20px;
}

.captcha-section {
  margin-top: 16px;
}

.captcha-box {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
}

#captcha {
  padding: 4px;
  width: 80px;
  border: 1px solid #ccc;
  border-radius: 4px;
}

button {
  display: block;
  width: 100%;
  padding: 10px;
  margin-top: 20px;
  background: #0078d7;
  color: white;
  font-weight: bold;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

button:hover {
  background: #005fa3;
}

.error {
  color: red;
  text-align: center;
  margin-top: 12px;
  font-weight: bold;
}

.hint {
  color: #666;
  font-size: 0.85em;
}

#iframe-container iframe {
    box-shadow: 0px 4px 12px rgba(0, 0, 0, 0.25);
    border-radius: 8px;
}