/* resets the browser default spacing */
* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

body {
    font-family: sans-serif;
    width: 100%;
    max-width: 760px;
    margin: 0 auto;
}

/* styles the header element */
header {
    height: 80px;
    text-align: center;
    position: relative;
    background-color: aliceblue;

    border: 1px solid rgba(0, 0, 0, 0.26);
    box-shadow: 0px 0px 4px 4px rgba(0, 0, 0, 0.116);
}

/* styles for logo wrapper*/
header .logo-wrapper {
    width: 100px;
    position: absolute;
    top: 50%;
    left: 20px;
    transform: translateY(-50%);
    cursor: pointer;
}

/* styles to fit logo image within the logo wrapper */
.logo-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* style for the main heading of page */
header h1 {
    line-height: 80px;
    color: #25265e;
}

.table-of-content {
    /* remaining width for the main content of page */
    width: 30%;
    border: 1px solid rgba(0, 0, 0, 0.137);
    color: #25265e;
    padding: 8px;
    height: 450px;
    /* makes the sidebar sticky */
    position: sticky;
    top: 0;
}

.menu-heading {
    margin-bottom: 20px;
}

.table-of-content ul {
    /* removes the bullet points in list items */
    list-style-type: none;

    /* list item marker is placed within the content area of the list item */
    list-style-position: inside;

    padding-left: 20px;
    margin-bottom: 12px;
}

/* styles for sub-heading inside our menu */
.menu-sub-heading {
    font-weight: bold;
    text-decoration: none;
    margin-bottom: 12px;
    color: #25265e;
}

/* provides the bottom spacing for each list item in menu */
.sub-menu li {
    margin-bottom: 16px;
}

/* color the menu item */
.table-of-content a {
    color: #25265e;
}

/* change color of menu items while on hovering */
.table-of-content a:hover {
    color: blue;
}

/* changes color while menu items are clicked */
.table-of-content a:active {
    color: red;
}

.main {
    /* default width is always 100% */
    width: 100%;

    /* aligns the sidebar and main content horizontally next to each other */
    display: flex;
    flex-direction: row;
    gap: 20px;
    border: 1px solid rgba(0, 0, 0, 0.26);
    box-shadow: 0px 0px 4px 4px rgba(0, 0, 0, 0.116);
}

/* styes for the main content */
.main-content {
    /* sets 70% width of the document, 25% is occupied by sidebar earlier,
    and remaining for spacing between them */

    width: 70%;
    padding: 10px;
}

h2,
h3 {
    color: #25265e;
    margin-bottom: 12px;
}

p {
    margin-bottom: 24px;
    line-height: 24px;
}

/* styles the under ordered list in main element */
.main ul {
    list-style-position: inside;
    padding-left: 20px;
    margin-bottom: 12px;
}

/* adds margin to top and botton for hr element for spacing */
.section-break {
    margin: 24px 0px;
}

/* styles the code block */
pre.code-block {
    width: 100%;
    padding: 12px;
    border: 1px solid rgba(0, 0, 0, 0.13);
    background-color: aliceblue;
    margin-bottom: 24px;
    white-space: pre-line;
}

/* images are allowed to shrink for smaller screen sizes */
.main-content img {
    max-width: 100%;
}

/* style for footer */
footer {
    height: 50px;
    font-size: 14px;
    text-align: center;
    color: #25265e;
    background-color: aliceblue;
    border: 1px solid rgba(0, 0, 0, 0.26);
    box-shadow: 0px 0px 4px 4px rgba(0, 0, 0, 0.116);
}

/* provide line-height same as height of footer to vertically center */
footer p {
    line-height: 50px;
}

/* adding media query for responsiveness  */

@media screen and (max-width: 672px) {
    /* the sidebar and content are stacked on top of each other */
    .main {
        flex-direction: column;
    }

    /* takes the full width of the document */
    .table-of-content {
        width: 100%;
        position: relative;
    }

    /* takes the full width of document */
    .main-content {
        width: 100%;
    }
}