* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    background-color: #f4f4f4;
    padding: 20px;
}

.container {
    max-width: 500px;
    margin: 0 auto;
    background: white;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

h1, h2 {
    color: #333;
    margin-bottom: 20px;
    text-align: center;
}

.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
    color: #555;
}

input, select, textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
}

button {
    width: 100%;
    padding: 12px;
    background: #007bff;
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    cursor: pointer;
}

button:hover {
    background: #0056b3;
}

button:disabled {
    background: #6c757d;
    cursor: not-allowed;
}

.alert {
    padding: 10px;
    margin-bottom: 20px;
    border-radius: 4px;
}

.alert-success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.success-message {
    text-align: center;
    padding: 40px 0;
}

.success-message h1 {
    color: #28a745;
    margin-bottom: 20px;
}

#captchaDisplay {
    font-family: monospace;
    font-size: 20px;
    font-weight: bold;
    background: #f8f9fa;
    padding: 5px 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

small {
    color: #6c757d;
    font-size: 12px;
}