body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
}


.header, footer {
    background-color: #333;
    color: white;
    padding: 10px 20px;
    position: fixed;
    width: 100%;
    z-index: 1000;
}
footer {
    bottom: 0;
    text-align: center;
}


.sidebar {
    background-color: #f8f9fa;
    position: fixed;
    top: 60px;
    left: 0;
    width: 250px;
    height: calc(100% - 120px);
    padding: 20px;
    overflow-y: auto;
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
}


.main {
    margin-left: 250px;
    padding: 20px;
    background-color: lightcoral;
    box-shadow: 0px 3px 10px rgba(0, 0, 0, 0.2);
}


.content {
    margin-left: 250px;
    padding: 20px;
    box-sizing: border-box;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
    background-color: rgb(61, 60, 60);
    color: white;
    margin-right: 50px; 
    width: calc(100% - 300px); 
}


.main-page {
    text-align: center;
    margin-top: 20px;
}

.main-page a {
    color: #007bff;
    font-weight: bold;
    text-decoration: none;
    transition: color 0.3s ease;
}

.main-page a:hover {
    color: #ff6f61;
}


.card-text {
    background-color: lightcoral;
    border: purple dashed 2px;
    padding: 10px;
}


@media screen and (max-width: 768px) {
    .sidebar {
        width: 200px;
        height: calc(100% - 60px);
    }
    .main, .content {
        margin-left: 200px;
        margin-right: 0;
        padding: 15px;
    }
}

@media screen and (max-width: 576px) {
    .sidebar {
        width: 100%;
        position: relative;
        height: auto;
    }
    .main, .content {
        margin-left: 0;
        margin-right: 0;
        padding: 10px;
    }
}