/* Chapter navigation is deliberately in-flow: no extra mobile overlay. */
.reader-guide{padding-top:28px;padding-bottom:0}.reader-guide [hidden],.chapter-pager [hidden]{display:none!important}.reader-contents{border:1px solid #ffffff32;background:#ffffff04}.reader-contents summary{padding:17px 20px;cursor:pointer;font-size:15px;font-weight:700}.reader-contents summary:focus-visible,.reader-guide button:focus-visible,.chapter-pager button:focus-visible{outline:3px solid currentColor;outline-offset:4px}.reader-contents ol{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:0 24px;margin:0;padding:0 20px 16px}.reader-contents li{border-top:1px solid #ffffff1d;min-width:0}.reader-contents a{display:flex;align-items:baseline;gap:12px;padding:12px 0;text-decoration:none;line-height:1.5;font-size:15px}.reader-contents a:hover{text-decoration:underline}.reader-contents a span{font-size:12px;opacity:.65;flex:none}.reader-label{font-size:11px!important;letter-spacing:.13em;text-transform:uppercase;font-weight:700;line-height:1.5!important;opacity:.75}.chapter-pager{border-top:1px solid #ffffff30;margin-top:40px;padding-top:20px}.chapter-links{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:12px 0 16px}.chapter-links a{font-size:15px;line-height:1.5;text-decoration:none;overflow-wrap:anywhere}.chapter-links a:hover{text-decoration:underline}.chapter-links a span{display:block;font-size:11px;letter-spacing:.07em;text-transform:uppercase;opacity:.62;margin-bottom:5px}.chapter-next{text-align:right;grid-column:2}.chapter h2[tabindex]:focus{outline:none}.chapter h2[tabindex]:focus-visible{outline:2px solid currentColor;outline-offset:8px}.timeline-chapter-link{display:inline-block;margin-top:15px;margin-bottom:8px;font-size:14px;font-weight:700}
@media(max-width:600px){.reader-guide{padding-top:20px}.reader-contents ol{grid-template-columns:1fr}.reader-contents summary{padding:15px 16px}.reader-contents ol{padding:0 16px 12px}.chapter-links{gap:14px}.chapter-links a{font-size:14px}.chapter-pager{margin-top:30px}}
@media print{.reader-guide,.chapter-pager,.timeline-chapter-link{display:none!important}}

.reader-hint{font-size:13px;line-height:1.5;padding:0 20px 14px;opacity:.75}.chapter-tools{display:flex;flex-wrap:wrap;align-items:center;gap:14px 24px}.chapter-tools a{font-size:13px;line-height:1.5;padding:10px 0;min-height:44px}