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/* end css.sty */

/* ── sugi.bio/biobtree theme overrides ── */

@import url("https://fonts.googleapis.com/css2?family=Source+Serif+4:ital,opsz,wght@0,8..60,400;0,8..60,500;0,8..60,600;1,8..60,400&family=JetBrains+Mono:wght@400;500&display=swap");

.preprint-doc{
    --text-color: #2c2c2c;
    --text-muted: #555;
    --text-light: #666;
    --bg-color: #e8e5de;
    --bg-paper: #f5f4ef;
    --accent-color: #1a6b7c;
    --accent-light: #e8f4f6;
    --accent-dark: #145566;
    --border-color: #d0cbc2;
    --border-dark: #b8b3aa;
}

.preprint-doc{
    background: var(--bg-color);
}

.preprint-doc{
    font-family: "Source Serif 4", "Georgia", "Times New Roman", serif;
    font-size: 1.05rem;
    line-height: 1.75;
    color: var(--text-color);
    max-width: 52em;
    margin: 0 auto;
    padding: 2rem 2.5rem 4rem;
    background: var(--bg-paper);
}

@media (max-width: 768px) {
    .preprint-doc{ font-size: 0.95rem; padding: 1rem; }
}

/* Title block */
.preprint-doc div.maketitle{
    padding: 2rem 0 1.5rem;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 2rem;
}

.preprint-doc h2.titleHead{
    font-family: "Source Serif 4", Georgia, serif;
    font-size: 1.7rem;
    font-weight: 600;
    color: var(--text-color);
    letter-spacing: -0.01em;
    line-height: 1.35;
}

.preprint-doc div.author{ color: var(--text-muted); font-size: 0.95rem; line-height: 1.6; }
.preprint-doc .author-affiliation{ color: var(--text-light); font-style: italic; }
.preprint-doc a.author-email{ color: var(--accent-color); font-style: normal; }
.preprint-doc a.author-email:hover{ color: var(--accent-dark); }
.preprint-doc div.date{ color: var(--text-light); font-size: 0.85rem; margin-top: 0.3rem; }
.preprint-doc .preprint-link{ margin-top: 0.5rem; font-size: 0.85rem; }
.preprint-doc .preprint-link a{ color: var(--accent-color); border-bottom: 1px solid var(--border-color); padding-bottom: 1px; }
.preprint-doc .preprint-link a:hover{ color: var(--accent-dark); border-bottom-color: var(--accent-dark); text-decoration: none; }

/* Abstract */
.preprint-doc .abstract{
    background: var(--accent-light);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 1.2rem 1.5rem;
    margin: 1.5rem 0;
}
.preprint-doc .abstracttitle{
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.85rem;
    color: var(--text-color);
}

/* Section headings */
.preprint-doc h3.sectionHead, .preprint-doc h3.likesectionHead{
    font-family: "Source Serif 4", Georgia, serif;
    font-size: 1.35rem;
    font-weight: 600;
    color: var(--text-color);
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0.35rem;
    margin-top: 2.5rem;
}

.preprint-doc h4.subsectionHead, .preprint-doc h4.likesubsectionHead{
    font-family: "Source Serif 4", Georgia, serif;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-top: 1.8rem;
}

/* Links */
.preprint-doc a{ color: var(--accent-color); text-decoration: none; }
.preprint-doc a:hover{ color: var(--accent-dark); text-decoration: underline; }

/* Code listings */
.preprint-doc pre.lstlisting, .preprint-doc pre.listings, .preprint-doc pre.verbatim{
    font-family: "JetBrains Mono", monospace;
    font-size: 0.88rem;
    background: #eae8e1;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 0.8rem 1rem;
    overflow-x: auto;
}

.preprint-doc code.lstinline, .preprint-doc code.verb{
    font-family: "JetBrains Mono", monospace;
    background: #eae8e1;
    padding: 0.1em 0.35em;
    border-radius: 3px;
    font-size: 0.88em;
}

/* Monospace spans from tex4ht */
.preprint-doc .ectt-1000, .preprint-doc .ectt-1095, .preprint-doc .ectt-0900{
    font-family: "JetBrains Mono", monospace !important;
}

/* Blockquotes (use case questions) */
.preprint-doc blockquote, .preprint-doc .quote{
    border-left: 3px solid var(--accent-color);
    background: var(--accent-light);
    padding: 0.8rem 1.2rem;
    border-radius: 0 4px 4px 0;
    margin: 1em 0;
}

/* Tables */
.preprint-doc table.tabular{
    font-size: 0.88rem;
    border-collapse: collapse;
    width: 100%;
}

.preprint-doc table.tabular td, .preprint-doc table.tabular th{
    padding: 0.45rem 0.6rem;
}

.preprint-doc table.tabular tr:hover{
    background: #eae8e1;
}

.preprint-doc div.caption, .preprint-doc figcaption.caption{
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.5;
}

/* Figure */
.preprint-doc figure.figure{ margin: 2rem 0; }
.preprint-doc figure.figure img, .preprint-doc figure.figure svg{ max-width: 100%; height: auto; }

/* References */
.preprint-doc dd.thebibliography{
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.55;
}
.preprint-doc dt.thebibliography{
    font-weight: 600;
    color: var(--text-color);
    font-size: 0.85rem;
}

/* Navigation bar */
.preprint-doc .paper-nav{
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.8rem 0;
    margin-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.85rem;
    color: var(--text-light);
}
.preprint-doc .paper-nav a{ color: var(--accent-color); font-weight: 500; }
.preprint-doc .paper-nav a:hover{ color: var(--accent-dark); }

/* Override tex4ht font-size classes to not shrink text */
.preprint-doc .ecrm-1000, .preprint-doc .ecbx-1000, .preprint-doc .ectt-1000, .preprint-doc .ecti-1000, .preprint-doc .ecrm-0900, .preprint-doc .ectt-0900, .preprint-doc .tcrm-0900{ font-size: inherit; }

/* Print */
@media print {
    .preprint-doc{ max-width: none; padding: 0; background: #fff; }
    .preprint-doc a{ color: inherit; }
}