body {
    font-family: Arial, sans-serif;
    /* background-color: #f9f9f9; */
    background: linear-gradient(135deg, #6db3f2 0%, #1e69de 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    padding: 20px;
    box-sizing: border-box;
}

.container {
    text-align: center;
    /* background-color: #fff; */
    background-color: rgba(255, 255, 255, 0.9);
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    max-width: 800px;
    width: 100%;
}

.header {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.logo {
    width: 50px;
    height: 50px;
    margin-right: 10px;
}

.title {
    font-size: 28px;
    color: #333;
    font-weight: bold;
}

.message {
    font-size: 24px;
    color: #333;
    margin-bottom: 20px;
    line-height: 1.6;
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    font-size: 18px;
    color: #fff;
    background-color: #007bff;
    border: none;
    border-radius: 5px;
    text-decoration: none;
    cursor: pointer;
    transition: background-color 0.3s;
}

.btn:hover {
    background-color: #0056b3;
}

@media (max-width: 600px) {
    .message {
        font-size: 20px;
    }

    .btn {
        font-size: 16px;
        padding: 10px 20px;
    }
}

@media (max-width: 400px) {
    .message {
        font-size: 18px;
    }

    .btn {
        font-size: 14px;
        padding: 8px 16px;
    }
}