body {
    font-family: Arial, sans-serif;
    background-color: #f1f1f1;
}

.container {
    max-width: 400px;
    margin: 0 auto;
    padding: 20px;
    border: 1px solid #ccc;
    background-color: #fff;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.input-group {
    margin-bottom: 20px;
}

    .input-group label,
    .input-group input {
        display: block;
        width: 94%;
    }

    .input-group input {
        padding: 10px;
    }

    .input-group button {
        padding: 10px;
        background-color: #ADD8E6;
        color: #000;
        border: none;
        cursor: pointer;
        width: 100%;
    }

header {
    background-color: ##ADD8E6;
    padding: 20px;
    text-align: center;
}

h1 {
    margin: 0;
    color: white;
    font-size: 32px;
}

main {
    padding: 20px;
}

.section {
    margin-bottom: 20px;
}

    .section h2 {
        font-size: 24px;
        margin-bottom: 10px;
    }

    .section p {
        margin: 0;
    }

.activity-link {
    display: block;
    margin-bottom: 10px;
    padding: 10px;
    background-color: #ffffff;
    border-radius: 5px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    text-decoration: none;
    color: #333333;
}

.return-btn {
    margin-top: 20px;
    text-align: center;
}

.logout-btn {
    display: block;
    width: 150px;
    margin: 20px auto;
    padding: 10px;
    background-color: #ff0000;
    color: white;
    text-align: center;
    border-radius: 5px;
    text-decoration: none;
    font-weight: bold;
}

footer {
    background-color: #333333;
    padding: 10px;
    text-align: center;
    color: white;
    font-size: 14px;
}