body {
    margin: 0;
    padding: 0;
    font-family: 'Roboto', sans-serif;
    background-image: url('bg.png');
    background-size: cover;
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-position: center;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.error-container {
    text-align: center;
    background-color: rgba(255, 255, 255, 0.8);
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

.error-container h1 {
    font-size: 10rem;
    margin: 0;
    font-family: 'Roboto Mono', monospace;
    color: #2c3e50;
}

.error-container p {
    margin: 0 0 20px 0;
    color: #2c3e50;
}

.btn {
    text-decoration: none;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    background-color: #3498db;
    color: #fff;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.3s;
}

.btn:hover {
    background-color: #2980b9;
}