/* Identical header geometry on the home page, manual and gallery. */
html{scrollbar-gutter:stable;--site-header-height:92px;scroll-padding-top:110px}
.site-header{position:sticky;inset:0 0 auto;z-index:50;width:100%;max-width:none;margin:0;padding:0!important;height:var(--site-header-height);min-height:var(--site-header-height);border:0;border-bottom:1px solid var(--line);background:var(--bg);color:var(--ink,var(--text));font-family:Inter,"Segoe UI",Arial,sans-serif;line-height:1.5;box-sizing:border-box;display:block}
.site-header *{box-sizing:border-box}.site-header-inner{width:min(1280px,calc(100% - 96px));height:100%;margin:0 auto;padding:0;display:flex;align-items:center;justify-content:space-between;gap:28px}.site-header a{text-decoration:none;color:inherit;filter:none}.site-header button,.site-header select{font-family:inherit;filter:none}.site-brand{display:flex;align-items:center;gap:11px;flex-shrink:0}.site-header .brand-logo{display:block;width:42px;height:42px;max-width:none;margin:0;padding:0;border-radius:25%;object-fit:contain;background:transparent}.site-brand-text{display:flex;flex-direction:column;gap:4px}.site-brand-text strong{font-size:25px;font-weight:650;line-height:1;letter-spacing:-.05em}.site-brand-text>span{font-size:10px;font-weight:400;line-height:1;letter-spacing:.07em;color:var(--muted);white-space:nowrap}.site-header .site-nav{position:static;display:flex;align-items:center;justify-content:flex-start;gap:27px;width:auto;margin:0 0 0 auto;padding:0;border:0;background:transparent;font-size:14px;font-weight:500;box-shadow:none;flex-wrap:nowrap}.site-nav a{white-space:nowrap}.site-nav a:hover{text-decoration:underline;text-underline-offset:5px}.site-controls{display:flex;align-items:center;gap:14px}.site-language{display:flex;align-items:center;gap:6px}.site-icon{height:21px;width:21px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}.site-language>.site-icon{width:17px;height:17px}.site-language select{font-size:13px;font-weight:400;line-height:1.5;min-height:44px;height:44px;max-width:99px;margin:0;padding:9px 0;border:0;border-radius:0;background:transparent;color:inherit;cursor:pointer}.site-language option{background:var(--bg);color:var(--ink,var(--text))}.site-header .site-icon-button{display:grid;place-items:center;min-width:42px;width:42px;height:42px;min-height:42px;padding:0;margin:0;border:1px solid var(--line);border-radius:50%;background:transparent;color:inherit;cursor:pointer;box-shadow:none}.site-header .site-icon-button:hover{background:var(--wash)}.site-header .site-download{font-size:13px;font-weight:560;line-height:1.5;min-height:42px;margin:0;padding:10px 17px;border:1px solid var(--accent);border-radius:7px;display:flex;align-items:center;justify-content:center;background:var(--accent);color:var(--accent-ink,var(--button-text));white-space:nowrap}.site-header .site-menu{display:none}.site-header a:focus-visible,.site-header button:focus-visible,.site-header select:focus-visible{outline:3px solid var(--accent);outline-offset:5px}.site-header .sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.guide-tools{max-width:1500px;margin:0 auto;padding:13px 32px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:flex-end;gap:23px;font-size:13px;background:var(--soft)}.guide-tools a{color:var(--accent);text-decoration:none}.guide-tools a:hover{text-decoration:underline}.guide-tools button{font-size:12px;padding:7px 11px}.guide-tools #contents-toggle{display:none}.guide-tools label{display:flex;align-items:center;gap:7px}.guide-tools select{font-size:12px;padding:6px 9px}.guide-tools-title{margin-right:auto;font-weight:500;color:var(--muted)}body[data-page="manual"] .layout aside{top:var(--site-header-height);height:calc(100dvh - var(--site-header-height))}body[data-page="manual"] article{scroll-margin-top:calc(var(--site-header-height) + 20px)}body[data-page="gallery"] .site-header+nav{max-width:1420px}
@media(max-width:1150px){.site-header-inner{width:calc(100% - 64px);gap:20px}.site-header .site-nav{gap:20px}.site-controls{gap:10px}.site-header .site-download{display:none}}
@media(max-width:850px){html{--site-header-height:78px}.site-header .site-nav{gap:16px;font-size:13px}.site-header .brand-logo{width:36px;height:36px}.site-brand-text strong{font-size:23px}.site-brand-text>span{font-size:9px}.guide-tools #contents-toggle{display:block}.guide-tools{padding-inline:22px}}
@media(max-width:650px){html{--site-header-height:75px}.site-header-inner{width:calc(100% - 40px);gap:10px}.site-brand{gap:8px}.site-header .brand-logo{width:34px;height:34px}.site-brand-text strong{font-size:23px}.site-brand-text>span{font-size:8px;letter-spacing:.045em}.site-controls{gap:8px}.site-language>.site-icon{display:none}.site-language select{max-width:80px;font-size:12px}.site-header .site-icon-button{min-width:36px;width:36px;height:36px;min-height:36px}.site-header .site-icon-button .site-icon{width:18px;height:18px}.site-header .site-menu{display:grid}.site-header .site-nav{display:none;position:absolute;top:var(--site-header-height);left:0;right:0;width:100%;padding:20px;background:var(--bg);border-bottom:1px solid var(--line);box-shadow:0 10px 15px #00000008;margin:0;justify-content:center;gap:22px;flex-wrap:wrap}.site-header .site-nav.open{display:flex}.guide-tools{padding:12px 20px;gap:15px;font-size:12px;flex-wrap:wrap}.guide-tools-title{width:100%}.guide-tools select{max-width:120px}.guide-tools #contents-toggle{margin-left:auto}body[data-page="manual"] .layout aside{top:var(--site-header-height);height:calc(100dvh - var(--site-header-height));z-index:40}}
@media(max-width:360px){.site-header-inner{width:calc(100% - 24px)}.site-header .brand-logo{width:30px;height:30px}.site-brand-text strong{font-size:21px}.site-controls{gap:5px}.site-language select{max-width:73px;font-size:11px}}
@media print{.site-header,.guide-tools{display:none!important}}

@media(min-width:651px) and (max-width:760px){.site-header .site-menu{display:grid}.site-header .site-nav{display:none;position:absolute;top:var(--site-header-height);left:0;right:0;width:100%;padding:20px;background:var(--bg);border-bottom:1px solid var(--line);margin:0;justify-content:center;gap:22px;flex-wrap:wrap}.site-header .site-nav.open{display:flex}}

.language-links{display:flex;flex-wrap:wrap;gap:16px;justify-content:center;padding:22px;font-size:13px}.language-links a{text-decoration:underline;text-underline-offset:3px}.chapter-transcripts{margin-top:40px}.chapter-transcripts details{padding:16px 0;border-bottom:1px solid var(--line,#33443a)}.chapter-transcripts summary{cursor:pointer;font-weight:600}.chapter-transcripts p{max-width:80ch;line-height:1.8;margin:16px 0}.chapter-transcripts a{margin-right:18px;text-decoration:underline}