body {
    font-family: Tahoma, sans-serif;
    background-color: #f4f6f8;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

form {
    background: #fff;
    padding: 20px 25px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    width: 320px;
}

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

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

input[type=text],
input[type=password],
input[type=tel] {
    width: 100%;
    padding: 8px;
    margin-bottom: 12px;
    border-radius: 4px;
    border: 1px solid #ccc;
}

button {
    width: 100%;
    background-color: #2d89ef;
    color: #fff;
    padding: 10px;
    border: none;
    border-radius: 4px;
    font-size: 15px;
    cursor: pointer;
}

button:hover {
    background-color: #1b5fa7;
}

.message {
    text-align: center;
    margin-top: 10px;
    font-size: 14px;
}