.mono-reader{background:#fbfdfc}
.rail{position:fixed;inset:0 0 auto;z-index:10;min-height:66px;display:flex;align-items:center;gap:12px;padding:10px max(16px,calc((100vw - 1280px)/2));border-bottom:1px solid var(--line);background:rgba(255,255,255,.94);backdrop-filter:blur(16px)}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:900;letter-spacing:.04em;text-decoration:none}.brand span{display:grid;place-items:center;width:38px;height:38px;border:1px solid rgba(8,125,112,.32);border-radius:8px;color:var(--accent)}
.rail nav{display:flex;gap:6px;min-width:0;margin-left:auto;overflow-x:auto;scrollbar-width:thin}.rail nav a{flex:0 0 auto;min-height:40px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:8px;padding:9px 12px;background:rgba(8,125,112,.055);color:var(--mut);font-size:13px;font-weight:780;text-decoration:none;white-space:nowrap}.rail nav a[aria-current='page']{border-color:var(--accent);color:var(--ink);background:rgba(8,125,112,.11)}.rail nav a:hover{border-color:rgba(8,125,112,.42)}
.reader-layout{display:grid;grid-template-columns:minmax(250px,330px) minmax(0,1fr);gap:28px;max-width:1500px;margin:0 auto;padding:90px 18px 70px}
.mono-sidebar{position:sticky;top:82px;align-self:start;max-height:calc(100vh - 98px);overflow:auto;border:1px solid var(--line);border-radius:8px;background:rgba(255,255,255,.96);padding:14px;box-shadow:0 18px 45px rgba(22,32,30,.08)}
.sidebar-head{display:flex;flex-direction:column;gap:2px;border-bottom:1px solid var(--line);padding-bottom:12px;margin-bottom:12px}.sidebar-head strong{font-size:18px}.sidebar-head span{color:var(--mut);font-size:13px}
.sidebar-search{display:grid;gap:6px;margin:0 0 12px}.sidebar-search span{font-weight:900;font-size:12px;text-transform:uppercase;color:var(--accent);letter-spacing:.06em}.sidebar-search input{width:100%;min-height:42px;border:1px solid var(--line);border-radius:8px;padding:9px 11px;font:inherit;background:#fff;color:var(--ink)}
.sidebar-source,.sidebar-links a,.chapter-list a{display:flex;gap:8px;align-items:flex-start;border-radius:8px;padding:8px 9px;color:var(--ink);text-decoration:none;font-weight:750;line-height:1.25}
.sidebar-source{background:var(--soft);color:var(--accent);margin-bottom:10px}.chapter-list details{border-top:1px solid var(--line);padding:8px 0}.chapter-list summary{cursor:pointer;font-weight:900;color:var(--accent);padding:6px 4px;line-height:1.25}.chapter-list a span{min-width:36px;color:var(--accent);font-weight:900}
.chapter-list a:hover,.sidebar-links a:hover{background:var(--soft)}.chapter-list a[aria-current='page']{background:#dff3ef;color:#075e55;box-shadow:inset 3px 0 0 var(--accent)}
.chapter-list a.is-hidden{display:none}.sidebar-links{border-top:1px solid var(--line);padding-top:12px;margin-top:12px;display:grid;gap:4px}
.chapter-main{min-width:0;max-width:980px}.chapter-main h1{font-size:clamp(34px,4.4vw,58px);line-height:1.03;margin-top:8px}.chapter-kicker{display:inline-flex;border:1px solid var(--line);border-radius:999px;padding:6px 10px;background:#fff;color:var(--accent);font-weight:900;text-transform:uppercase;letter-spacing:.06em;font-size:12px}
.chapter-nav{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:18px 0}.chapter-nav span{color:var(--mut);font-weight:900}.chapter-nav a{min-height:42px;display:inline-flex;align-items:center;border:1px solid var(--line);border-radius:8px;background:#fff;padding:10px 14px;text-decoration:none;font-weight:900}.chapter-nav a:hover{background:var(--soft)}
.chapter-figure{margin:20px 0;border:1px solid var(--line);border-radius:8px;background:#fff;overflow:hidden}.chapter-figure img{display:block;width:100%;height:auto}.chapter-figure figcaption{padding:12px 14px;color:var(--mut);font-weight:700}
.chapter-meta{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin:18px 0}.chapter-meta span,.chapter-meta strong{border:1px solid var(--line);border-radius:999px;background:var(--soft);padding:6px 11px}.chapter-meta span{color:var(--mut)}.chapter-meta strong{color:var(--accent)}
.chapter-content{font-size:17px;line-height:1.72}.chapter-content p{max-width:78ch}.chapter-content ul,.chapter-content ol{max-width:82ch}.chapter-content h3{font-size:30px;margin:0 0 12px}.chapter-content .role{margin-top:0}.chapter-content .grid{grid-template-columns:1fr 1fr}.chapter-content .micro{max-width:82ch}
.chapter-references{margin:28px 0;border:1px solid var(--line);border-radius:8px;background:#fff;padding:18px}.chapter-references h2{margin:0 0 8px;font-size:24px}.chapter-references>p{margin:0 0 14px;color:var(--mut);font-weight:700}.chapter-references ol{display:grid;gap:10px;margin:0;padding-left:24px}.chapter-references li{padding:8px 0;border-top:1px solid var(--line)}.chapter-references a{color:var(--accent)}.chapter-references span{color:var(--mut);font-size:13px}.chapter-references p{margin:6px 0 0;color:var(--mut);font-size:14px;line-height:1.45}
.skip-link{position:fixed;left:14px;top:10px;z-index:100;transform:translateY(-140%);border:2px solid var(--accent);border-radius:8px;background:#fff;color:var(--ink);padding:9px 12px;font-weight:900;text-decoration:none}.skip-link:focus{transform:translateY(0)}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid rgba(8,125,112,.46);outline-offset:3px}
body[data-page='sources'] .source{margin:14px 0}
@media(max-width:980px){.reader-layout{grid-template-columns:1fr}.mono-sidebar{position:relative;top:auto;max-height:45vh}.chapter-main{max-width:none}.chapter-content .grid{grid-template-columns:1fr}}
@media(max-width:700px){.rail{min-height:104px;align-items:flex-start;flex-wrap:wrap;padding:8px 12px}.rail nav{order:3;flex-basis:100%;width:100%}.reader-layout{padding-top:124px}.mono-sidebar{max-height:44vh}}
@media(max-width:640px){.reader-layout{padding-left:12px;padding-right:12px;padding-bottom:54px}.chapter-nav{align-items:stretch}.chapter-nav a{justify-content:center;flex:1}.chapter-nav span{align-self:center}.chapter-main h1{font-size:34px}.chapter-content{font-size:16px}.mono-sidebar{max-height:52vh}}
@media print{.mono-sidebar,.rail,.chapter-nav,.sidebar-search{display:none}.reader-layout{display:block;padding-top:0}.chapter-main{max-width:none}.chapter-figure{break-inside:avoid}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition-duration:.001ms!important;animation-duration:.001ms!important;animation-iteration-count:1!important}}