“`html

/* Base Styles for a clean, modern, and academic look */
body {
font-family: ‘Tahoma’, ‘Arial’, ‘Nazanin’, sans-serif; /* Added Nazanin as a common Persian font */
line-height: 1.8;
color: #333; /* Dark gray for readability */
background-color: #f8f9fa; /* Light background for the page */
margin: 0;
padding: 20px;
direction: rtl; /* Right-to-left for Persian */
text-align: right; /* Default text alignment */
}

/* Article Container for responsiveness and overall design */
.article-container {
max-width: 900px;
margin: 0 auto; /* Center the content */
padding: 30px;
background-color: #fff; /* White background for the article */
box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08); /* Subtle shadow for depth */
border-radius: 12px; /* Rounded corners */
overflow: hidden; /* Ensures content stays within bounds */
}

/* Headings Styling */
h1 {
font-size: 2.8em; /* Large size for main title */
font-weight: 800; /* Extra bold */
color: #004d99; /* Deep blue for prominence */
margin-bottom: 30px;
text-align: center; /* Center align main title */
border-bottom: 3px solid #e0b16a; /* Muted gold accent line */
padding-bottom: 15px;
line-height: 1.3;
}

h2 {
font-size: 2.2em;
font-weight: 700; /* Bold */
color: #0056b3; /* Slightly lighter blue */
margin-top: 40px;
margin-bottom: 25px;
border-bottom: 2px solid #f0f0f0; /* Light gray separator */
padding-bottom: 10px;
text-align: right; /* Ensure RTL alignment */
}

h3 {
font-size: 1.7em;
font-weight: 600; /* Semi-bold */
color: #007bff; /* Standard blue */
margin-top: 30px;
margin-bottom: 20px;
padding-right: 15px; /* Padding for custom bullet */
position: relative;
text-align: right; /* Ensure RTL alignment */
}
h3::before {
content: ‘▪’; /* Custom bullet icon */
color: #e0b16a; /* Muted gold for bullet */
position: absolute;
right: 0; /* Position to the right for RTL */
top: 2px;
font-size: 0.8em;
line-height: 1;
}

/* Paragraphs */
p {
margin-bottom: 1.5em;
text-align: justify; /* Justify text for a clean look */
}

/* Lists */
ul, ol {
margin-bottom: 1.5em;
padding-right: 25px; /* RTL padding */
padding-left: unset; /* Remove LTR padding */
}
ul li, ol li {
margin-bottom: 0.8em;
padding-right: 5px; /* Small padding for list items */
}

/* Table of Contents Specific Styles */
.toc-section {
background-color: #fcfdfe; /* Very light blue background */
border: 1px solid #e0e0e0;
border-radius: 8px;
padding: 20px 25px;
margin-bottom: 30px;
box-shadow: 0 1px 5px rgba(0,0,0,0.03);
}
.toc-section h2 {
font-size: 1.6em; /* Smaller size for TOC heading */
border-bottom: 1px solid #ddd;
padding-bottom: 10px;
margin-top: 0;
margin-bottom: 15px;
color: #0056b3;
}
ul.toc {
list-style-type: none; /* Remove default list bullets */
padding: 0; /* Remove default padding */
}
ul.toc li {
margin-bottom: 10px;
position: relative;
padding-right: 25px; /* Space for custom bullet */
}
ul.toc li a {
color: #007bff; /* Link color */
text-decoration: none;
font-weight: 500;
transition: color 0.3s ease; /* Smooth transition on hover */
}
ul.toc li a:hover {
color: #e0b16a; /* Muted gold on hover */
}
ul.toc li::before {
content: ‘➤’; /* Custom arrow bullet for TOC */
color: #e0b16a;
margin-left: 10px; /* Space from text */
margin-right: unset; /* Reset LTR margin */
position: absolute;
right: 0; /* Position to the right for RTL */
font-size: 0.9em;
top: 2px;
}

/* Table Styles */
table {
width: 100%;
border-collapse: collapse; /* Collapse borders */
margin: 2em 0;
background-color: #fcfcfc;
border-radius: 8px;
overflow: hidden; /* Ensures rounded corners are applied */
box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}
th, td {
border: 1px solid #eee; /* Light border */
padding: 12px 15px;
text-align: right; /* RTL alignment */
}
th {
background-color: #0056b3; /* Blue header background */
color: #fff; /* White text for header */
font-weight: 600;
font-size: 1.1em;
}
tr:nth-child(even) {
background-color: #f6f6f6; /* Zebra striping for rows */
}
tr:hover {
background-color: #eff6fc; /* Subtle hover effect */
}

/* Infographic-like Section (Challenges) Styling */
.infographic-box {
background-color: #fff7eb; /* Light gold/beige background */
border-right: 5px solid #e0b16a; /* Muted gold accent border on the right for RTL */
border-left: none; /* Remove default LTR border if any */
padding: 25px;
margin: 30px 0;
border-radius: 8px;
box-shadow: 0 2px 10px rgba(0, 0, 0, 0.06);
position: relative;
text-align: right;
}
.infographic-box h3 {
color: #a07e3a; /* Darker gold for inner heading */
margin-top: 0;
margin-bottom: 15px;
padding-right: 0; /* Remove general h3 padding */
border-bottom: 1px dashed #e0b16a; /* Dashed line separator */
padding-bottom: 10px;
}
.infographic-box h3::before {
content: ‘⚡’; /* Lightning icon for challenges */
color: #e0b16a;
font-size: 1em;
position: static; /* Reset absolute positioning */
margin-left: 10px; /* Space from text */
margin-right: unset;
display: inline-block;
}
.infographic-item {
margin-bottom: 15px;
display: flex; /* Flexbox for icon and text alignment */
align-items: flex-start;
flex-direction: row-reverse; /* Icon on the right for RTL */
}
.infographic-item .icon {
font-size: 1.5em; /* Larger icon size */
color: #e0b16a;
margin-left: 15px; /* Space between icon and text for RTL */
margin-right: unset; /* Remove LTR margin */
line-height: 1.2;
}
.infographic-item p {
margin: 0;
text-align: justify;
flex-grow: 1; /* Allow text to take remaining space */
}

/* Responsive Adjustments */
/* For Tablets and larger mobiles */
@media (max-width: 768px) {
.article-container {
padding: 20px;
}
h1 {
font-size: 2.2em;
margin-bottom: 20px;
padding-bottom: 10px;
}
h2 {
font-size: 1.8em;
margin-top: 30px;
margin-bottom: 20px;
}
h3 {
font-size: 1.4em;
margin-top: 25px;
margin-bottom: 15px;
padding-right: 10px; /* Adjust for smaller screens */
}
h3::before {
font-size: 0.7em; /* Smaller bullet for smaller screens */
}
table, th, td {
font-size: 0.9em;
padding: 10px;
}
.infographic-box {
padding: 20px;
margin: 25px 0;
}
.infographic-item {
flex-direction: row-reverse; /* Stays RTL */
}
}

/* For Mobile Phones */
@media (max-width: 480px) {
.article-container {
padding: 15px;
border-radius: 0; /* No border-radius on very small screens */
box-shadow: none; /* No shadow */
}
h1 {
font-size: 1.8em;
text-align: right; /* Adjust alignment for small screens */
border-bottom: 2px solid #e0b16a;
margin-bottom: 15px;
}
h2 {
font-size: 1.5em;
margin-top: 25px;
margin-bottom: 15px;
}
h3 {
font-size: 1.2em;
margin-top: 20px;
margin-bottom: 10px;
padding-right: 8px;
}
body {
padding: 10px;
}
.infographic-box {
padding: 15px;
margin: 20px 0;
}
/* Table stacking for small screens */
table {
border: none;
box-shadow: none;
}
th, td {
display: block; /* Stack table cells */
width: 100%;
text-align: right;
border: none; /* Remove individual cell borders */
padding: 8px 10px;
}
th {
background-color: #0056b3;
color: #fff;
border-bottom: 1px solid rgba(255,255,255,0.2); /* Separator for stacked header */
border-radius: 5px 5px 0 0; /* Rounded top for stacked header */
}
td {
border-bottom: 1px solid #eee; /* Separator for stacked cells */
}
tr {
margin-bottom: 15px;
display: block;
border: 1px solid #ddd; /* Border around each row */
border-radius: 8px;
background-color: #fff; /* Ensure row background is white */
box-shadow: 0 1px 4px rgba(0,0,0,0.05);
}
tr:nth-child(even) {
background-color: #fff; /* Reset zebra for stacked rows */
}
tr:hover {
background-color: #fff; /* Reset hover for stacked rows */
box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}
}

/* Print styles for better readability on paper */
@media print {
body {
background-color: #fff;
color: #000;
padding: 0;
margin: 0;
line-height: 1.5;
font-size: 12pt;
}
.article-container {
box-shadow: none;
border-radius: 0;
padding: 0;
margin: 0;
max-width: none;
width: 100%;
}
h1, h2, h3 {
color: #000;
border-bottom-color: #ccc;
padding-bottom: 5px;
margin-top: 20px;
margin-bottom: 10px;
font-size: 1.5em; /* Adjust for print */
}
h1 { font-size: 2em; text-align: center; border-bottom: 1px solid #000; }
h2 { font-size: 1.3em; border-bottom: 1px solid #ccc; }
h3 { font-size: 1.1em; }
h3::before { content: ‘▪’; color: #000; }
.infographic-box {
background-color: #f0f0f0;
border-right-color: #ccc;
box-shadow: none;
padding: 15px;
}
ul.toc, .toc-section {
display: none; /* Hide TOC on print */
}
table, th, td {
border: 1px solid #ccc;
font-size: 10pt;
padding: 8px;
}
th {
background-color: #e0e0e0;
color: #000;
}
tr:nth-child(even) {
background-color: #f7f7f7;
}
}

/* Styles for large screens (TV, very large monitors) */
@media (min-width: 1200px) {
.article-container {
max-width: 1000px; /* Slightly wider for larger screens */
padding: 40px;
}
h1 {
font-size: 3.2em;
}
h2 {
font-size: 2.5em;
}
h3 {
font-size: 2em;
}
body {
font-size: 1.1em; /* Slightly larger base font */
}
}

“`