body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f9;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    color: #333;
}
.container {
    text-align: center;
    background-color: #fff;
    padding: 20px 40px;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}
h1 {
    font-size: 2.5em;
    color: #4e54c8;
}
p {
    font-size: 1.2em;
    margin-top: 10px;
    color: #666;
}
.btn {
    display: inline-block;
    margin-top: 20px;
    padding: 10px 20px;
    font-size: 1em;
    color: #fff;
    background: linear-gradient(45deg, #4e54c8, #8f94fb);
    text-decoration: none;
    border-radius: 5px;
    transition: background 0.3s ease;
}
.btn:hover {
    background: linear-gradient(45deg, #8f94fb, #4e54c8);
}