body {
    font-family: Arial, sans-serif;
    background: #f2f5fa;
    margin: 0;
}

.container {
    max-width: 600px;
    margin: 30px auto;
}

h1, h2 {
    text-align: center;
    color: #0055aa;
}

form {
    background: white;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 30px;
}

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

input, select, button {
    width: 100%;
    padding: 8px;
    margin-top: 5px;
}

button {
    margin-top: 15px;
    background: #0055aa;
    color: white;
    border: none;
}

.box {
    background: white;
    padding: 15px;
    margin-bottom: 10px;
    border-radius: 6px;
}

.success {
    color: green;
    text-align: center;
}

.error {
    color: red;
    text-align: center;
}