body {
            font-family: serif;
            line-height: 1.6;
            max-width: 800px;
            margin: 20px auto;
            padding: 0 15px;
            color: #333;
        }

        h1, h2, h3, h4 {
            font-family: sans-serif;
            color: #111;
            margin-top: 1.5em;
            margin-bottom: 0.5em;
            line-height: 1.3;
        }

        h1 {
            font-size: 2em;
            text-align: center;
            margin-bottom: 1em;
        }

        h2 {
            font-size: 1.6em;
            border-bottom: 1px solid #eee;
            padding-bottom: 0.3em;
        }

        h3 {
            font-size: 1.3em;
        }

        h4 {
            font-size: 1.1em;
            font-style: italic;
        }

        p {
            margin-bottom: 1em;
            text-align: justify;
        }

        a {
            color: #0066cc;
            text-decoration: none;
        }

        a:hover {
            text-decoration: underline;
        }

        .authors-affiliations {
            text-align: center;
            margin-bottom: 2em;
            font-family: sans-serif;
        }

        .author {
            font-weight: bold;
        }

        .affiliation {
            font-size: 0.9em;
            color: #555;
        }

        .email a {
            font-size: 0.9em;
            color: #0066cc; /* Link-like color */
            text-decoration: none;
        }
         .email a:hover {
            text-decoration: underline;
        }

        .abstract {
            margin-top: 2em;
            margin-bottom: 2em;
            padding: 1em;
            background-color: #f9f9f9;
            border-left: 3px solid #ccc;
        }

        .abstract h2 {
            font-size: 1.4em;
            border-bottom: none;
            margin-top: 0;
        }

        .keywords {
            margin: -1em 0 2em;
            padding: 0.75em 1em;
            background-color: #f9f9f9;
            border-left: 3px solid #ccc;
            font-size: 0.95em;
        }

        .keywords p {
            margin: 0;
            text-align: left;
        }

        figure {
            margin: 2em auto;
            text-align: center;
            border: 1px solid #eee;
            padding: 1em;
            background-color: #fdfdfd;
        }

        figure img {
            max-width: 100%;
            height: auto;
            display: block;
            margin: 0 auto 0.5em auto;
        }

        figcaption {
            font-size: 0.9em;
            color: #555;
            text-align: left;
            margin-top: 0.5em;
            font-family: sans-serif;
        }

        table {
            width: 100%;
            border-collapse: collapse;
            margin: 2em 0;
            font-family: sans-serif;
            font-size: 0.9em;
        }

        caption {
            caption-side: top;
            font-weight: bold;
            margin-bottom: 0.5em;
            font-size: 1em;
            color: #333;
            text-align: left;
        }

        th, td {
            border: 1px solid #ccc;
            padding: 8px;
            text-align: left;
            vertical-align: top;
        }

        th {
            background-color: #f2f2f2;
            font-weight: bold;
        }

        .equation {
            text-align: center;
            margin: 1.5em 0;
            font-family: monospace; /* Or keep serif */
            font-size: 1.1em;
        }

        .references ol {
            padding-left: 20px;
            list-style: none; /* Remove default numbering */
            counter-reset: ref-counter;
        }

        .references li {
            margin-bottom: 0.8em;
            counter-increment: ref-counter;
            position: relative;
            padding-left: 25px; /* Space for custom number */
        }
        .references li::before {
            content: "[" counter(ref-counter) "]";
            position: absolute;
            left: 0;
            font-weight: bold;
            color: #555;
        }
        .references li span.ref-content {
            display: inline-block; /* Keep content together */
			margin-left: 1em;
        }

        strong {
            font-weight: bold;
        }

        code, pre {
             font-family: monospace, monospace;
             background-color: #f4f4f4;
             padding: 1px 3px;
             border-radius: 3px;
        }

        /* Footer/Acknowledgments */
        .acknowledgments {
            font-size: 0.9em;
            margin-top: 2em;
        }

        /* Style for the arXiv ID mentioned in the header */
        .header-arxiv-id {
            font-family: sans-serif;
            color: #555;
            font-size: 0.9em;
            margin-bottom: 2em;
            text-align: left; /* Or adjust as needed */
        }
        .header-arxiv-id a {
            color: #0066cc;
            text-decoration: none;
        }
        .header-arxiv-id a:hover {
            text-decoration: underline;
        }


        @media print {
            body {
                max-width: none;
                margin: 1cm;
                font-size: 10pt;
            }
            h1, h2, h3, h4 { page-break-after: avoid; }
            figure, table { page-break-inside: avoid; }
            .header-arxiv-id { display: none; } /* Hide on print too */
            a { color: inherit; text-decoration: none; } /* Make links look like normal text */
             .references li::before { color: inherit; }
			#translations { display: none }
        }

		#notebooklm {
			display: flex;
		}
		#notebooklm div {
			flex: 1;
		}
		#translations {
			float: right;
		}


/* Bidirectional overrides keep the single shared stylesheet readable in RTL. */
[dir="rtl"] .abstract,
[dir="rtl"] .keywords { border-left: 0; border-right: 3px solid #ccc; }
[dir="rtl"] .keywords p { text-align: right; }
[dir="rtl"] figcaption,
[dir="rtl"] caption,
[dir="rtl"] th,
[dir="rtl"] td { text-align: right; }
[dir="rtl"] .header-arxiv-id { text-align: right; direction: ltr; }
[dir="rtl"] .equation { direction: ltr; }
[dir="rtl"] .references ol { padding-right: 20px; padding-left: 0; }
[dir="rtl"] .references li {
    padding-right: 25px;
    padding-left: 0;
    direction: ltr;
    text-align: left;
}
[dir="rtl"] .references li::before { right: 0; left: auto; }
[dir="rtl"] .references li span.ref-content { margin-right: 1em; margin-left: 0; }

#translations { float: right; font-family: sans-serif; }
#notebooklm { display: flex; gap: 1rem; }
#notebooklm > div { flex: 1; }
audio, video { max-width: 100%; }

@media (max-width: 640px) {
    #translations { float: none; margin-bottom: 1rem; }
    #notebooklm { display: block; }
}