body {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
    background: #f4f6f9;
}

.container {
    max-width: 900px;
    margin: 40px auto;
    padding: 20px;
}

.card, .carteira {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    padding: 24px;
}

h1 {
    margin-top: 0;
}

label {
    display: block;
    margin-top: 15px;
    margin-bottom: 6px;
    font-weight: bold;
}

input[type="text"] {
    width: 100%;
    padding: 12px;
    border: 1px solid #bbb;
    border-radius: 8px;
    box-sizing: border-box;
}

button {
    margin-top: 20px;
    padding: 12px 18px;
    border: 0;
    border-radius: 8px;
    background: #0a4fa3;
    color: #fff;
    font-size: 16px;
    cursor: pointer;
}

button:hover {
    background: #083d80;
}

.alert.error {
    background: #ffe3e3;
    color: #8a1f1f;
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 15px;
}

.captcha-box {
    margin: 10px 0;
}

.carteira {
    max-width: 550px;
    margin: 0 auto;
    border: 2px solid #0a4fa3;
}

.carteira-header {
    display: flex;
    align-items: center;
    gap: 16px;
    border-bottom: 1px solid #ddd;
    padding-bottom: 12px;
    margin-bottom: 18px;
}

.logo {
    width: 90px;
    height: auto;
}

.carteira-body p {
    margin: 10px 0;
    font-size: 16px;
}

.codigo {
    font-family: monospace;
    font-size: 18px;
    color: #0a4fa3;
    font-weight: bold;
}

.qr-box {
    margin-top: 20px;
    text-align: center;
}

.qr-box img {
    max-width: 160px;
    border: 1px solid #ccc;
    padding: 6px;
    background: #fff;
}