body {
    font-family: Arial, sans-serif;
    background: #f2f2f2;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
}

.card {
    background: #fff;
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 4px 10px rgba(0,0,0,.1);
    max-width: 500px;
    width: 90%;
    text-align: center;
}

h1 {
    font-size: 26px;
    margin-bottom: 20px;
}

p {
    font-size: 18px;
    margin: 8px 0;
}

.contact {
    text-align: left;
}

input {
    width: 100%;
    padding: 12px;
    margin-bottom: 12px;
    box-sizing: border-box;
    font-size: 16px;
}

button {
    width: 100%;
    padding: 12px;
    font-size: 16px;
    cursor: pointer;
}

.error {
    color: #c00000;
    margin-bottom: 10px;
}

.info {
    color: #555;
}

@media (max-width: 600px) {

    .card {
        width: 90%;
        padding: 20px;
    }

    h1 {
        font-size: 22px;
    }

    p {
        font-size: 18px;
    }

    input,
    button {
        font-size: 18px;
        padding: 14px;
    }
}