:root{
  --bg:#f6f1e7; --paper:#fbf8f1; --ink:#2b2620; --ink-2:#5f564a; --ink-3:#8a7f70;
  --line:#e2d9c8; --accent:#2f4f8f; --accent-ink:#ffffff; --accent-soft:#e6ebf5;
  --mark:#f3e3b5; --shadow:0 1px 2px rgba(60,45,20,.08),0 6px 20px rgba(60,45,20,.08);
  --serif:"Iowan Old Style","Palatino Linotype",Palatino,"Book Antiqua",Georgia,serif;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --top:60px; color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#191714; --paper:#211e1a; --ink:#ece5d8; --ink-2:#bdb3a3; --ink-3:#8c8274;
    --line:#37322b; --accent:#9db4e8; --accent-ink:#141210; --accent-soft:#262c3a;
    --mark:#4a3f22; --shadow:0 1px 2px rgba(0,0,0,.3),0 6px 20px rgba(0,0,0,.3); color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --bg:#191714; --paper:#211e1a; --ink:#ece5d8; --ink-2:#bdb3a3; --ink-3:#8c8274;
  --line:#37322b; --accent:#9db4e8; --accent-ink:#141210; --accent-soft:#262c3a;
  --mark:#4a3f22; --shadow:0 1px 2px rgba(0,0,0,.3),0 6px 20px rgba(0,0,0,.3); color-scheme:dark;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:calc(var(--top) + 16px)}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--serif);font-size:19px;line-height:1.65}
a{color:var(--accent)}
button{font:inherit;color:inherit}
svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.skip{position:absolute;left:-999px;top:8px;background:var(--accent);color:var(--accent-ink);padding:8px 12px;z-index:100}
.skip:focus{left:8px}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* header */
.top{position:sticky;top:0;z-index:30;height:var(--top);display:flex;align-items:center;gap:12px;padding:0 16px;
  background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.brand{display:flex;flex-direction:column;text-decoration:none;color:var(--ink);min-width:0;flex:1}
.brand-t{font-size:17px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;line-height:1.2}
.brand-s{font-family:var(--sans);font-size:12px;color:var(--ink-3);letter-spacing:.04em;text-transform:uppercase}
.topnav{display:flex;gap:4px;font-family:var(--sans);font-size:14px}
.topnav a{color:var(--ink-2);text-decoration:none;padding:7px 12px;border-radius:999px}
.topnav a:hover{background:var(--accent-soft);color:var(--ink)}
.topnav a[aria-current="page"]{background:var(--ink);color:var(--bg)}
.iconbtn{background:none;border:0;width:40px;height:40px;border-radius:10px;display:grid;place-items:center;cursor:pointer;color:var(--ink-2)}
.iconbtn:hover{background:var(--accent-soft);color:var(--ink)}
.menu{display:none}

/* layout */
.layout{display:grid;grid-template-columns:290px minmax(0,1fr);max-width:1240px;margin:0 auto}
.toc{position:sticky;top:var(--top);height:calc(100vh - var(--top));overflow:auto;padding:28px 16px 28px 20px;font-family:var(--sans);border-right:1px solid var(--line)}
.toc-h{font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:var(--ink-3);margin:0 0 10px 10px}
.toc ol{list-style:none;margin:0;padding:0;counter-reset:c}
.toc li a{display:grid;grid-template-columns:26px 1fr;gap:2px 6px;padding:8px 10px;border-radius:10px;text-decoration:none;color:var(--ink-2);font-size:14.5px;line-height:1.3}
.toc li a::before{counter-increment:c;content:counter(c);font-variant-numeric:tabular-nums;color:var(--ink-3);font-size:13px;padding-top:1px}
.toc li a small{grid-column:2;color:var(--ink-3);font-size:12px}
.toc li a:hover{background:var(--accent-soft);color:var(--ink)}
.toc li a[aria-current="true"]{background:var(--paper);color:var(--ink);box-shadow:var(--shadow)}
.toc-foot{margin-top:20px;padding:14px 10px 0;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:8px;font-size:14px}
.toc-foot a{text-decoration:none}
.scrim{position:fixed;inset:var(--top) 0 0 0;background:rgba(0,0,0,.35);z-index:19}

main{padding:40px 48px 96px;min-width:0;outline:none}

/* home */
.hero{display:grid;grid-template-columns:minmax(0,260px) 1fr;gap:40px;align-items:center;margin:8px 0 48px}
.hero-cover{border-radius:4px;box-shadow:var(--shadow);overflow:hidden;cursor:zoom-in;border:0;padding:0;background:none}
.hero-cover img{display:block;width:100%;height:auto}
.eyebrow{font-family:var(--sans);font-size:12.5px;text-transform:uppercase;letter-spacing:.1em;color:var(--ink-3);margin:0 0 8px}
h1{font-size:44px;line-height:1.1;margin:0 0 16px;font-weight:600;letter-spacing:-.01em;text-wrap:balance}
.hero p.intro{color:var(--ink-2);margin:0 0 20px;max-width:56ch}
.btnrow{display:flex;flex-wrap:wrap;gap:10px;font-family:var(--sans);font-size:15px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 18px;border-radius:999px;text-decoration:none;border:1px solid var(--line);color:var(--ink);background:var(--paper)}
.btn.primary{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px;list-style:none;padding:0;margin:0}
.card{display:flex;flex-direction:column;text-decoration:none;color:var(--ink);background:var(--paper);border-radius:12px;overflow:hidden;box-shadow:var(--shadow);height:100%;transition:transform .15s}
.card:hover{transform:translateY(-2px)}
.card img{width:100%;aspect-ratio:16/10;object-fit:cover;display:block;filter:sepia(.15)}
.card div{padding:12px 14px 16px}
.card .num{font-family:var(--sans);font-size:12px;color:var(--ink-3)}
.card h3{margin:2px 0 2px;font-size:18px;line-height:1.25}
.card small{font-family:var(--sans);color:var(--ink-3);font-size:12.5px}
h2.section{font-size:24px;margin:0 0 16px}

/* chapter */
.chap{max-width:720px;margin:0 auto}
.chap-head{margin:0 0 32px}
.chap-head h1{font-size:40px}
.chap-meta{font-family:var(--sans);font-size:13.5px;color:var(--ink-3)}
.chap p{margin:0 0 1em;hyphens:auto;-webkit-hyphens:auto}
.chap p.lead::first-letter{float:left;font-size:3.4em;line-height:.85;padding:6px 8px 0 0;color:var(--accent);font-weight:600}
.chap p.sig{text-align:right;font-style:italic;margin:2em 0 0}
.chap p.sig.name{margin:0;font-size:1.3em}
.unsure{background:var(--mark);border-radius:3px;padding:0 2px;cursor:help}
.pg{display:inline-block;font-family:var(--sans);font-size:11.5px;color:var(--ink-3);border:1px solid var(--line);border-radius:999px;padding:1px 9px;margin:0 0 .8em;cursor:pointer;user-select:none;line-height:1.6}
.pg:hover{color:var(--accent);border-color:var(--accent)}
.tbl{overflow-x:auto;margin:1.4em 0 1.6em;background:var(--paper);border-radius:10px;box-shadow:var(--shadow)}
table{border-collapse:collapse;width:100%;font-family:var(--sans);font-size:15px;line-height:1.4;font-variant-numeric:tabular-nums}
th,td{padding:9px 14px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
th{font-weight:600;font-size:13px;color:var(--ink-2);background:color-mix(in srgb,var(--line) 35%,transparent)}
tr:last-child td{border-bottom:0}
td:not(:first-child),th:not(:first-child){text-align:right}

figure.fig{margin:2em auto;max-width:520px}
figure.fig.wide{max-width:none;margin-left:-40px;margin-right:-40px}
.figbtn{display:block;position:relative;width:100%;padding:0;border:0;background:var(--paper);border-radius:6px;overflow:hidden;cursor:zoom-in;box-shadow:var(--shadow)}
.figbtn img{display:block;width:100%;height:auto;transition:transform .35s ease}
.figbtn:hover img{transform:scale(1.015)}
.zoomhint{position:absolute;right:10px;bottom:10px;width:38px;height:38px;border-radius:50%;background:rgba(20,18,15,.6);opacity:.85;transition:opacity .2s;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2' stroke-linecap='round'%3E%3Ccircle cx='10.5' cy='10.5' r='6'/%3E%3Cpath d='M15 15l5 5M10.5 8v5M8 10.5h5'/%3E%3C/svg%3E");background-size:20px;background-repeat:no-repeat;background-position:center}
.figbtn:hover .zoomhint{opacity:1}
figcaption{font-family:var(--sans);font-size:14px;color:var(--ink-2);margin-top:10px;display:flex;justify-content:space-between;gap:12px;padding:0 4px}
.figmeta{color:var(--ink-3);white-space:nowrap}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:56px;font-family:var(--sans)}
.pager a{display:block;padding:14px 18px;border:1px solid var(--line);border-radius:12px;text-decoration:none;color:var(--ink);background:var(--paper)}
.pager a:hover{border-color:var(--accent)}
.pager small{display:block;color:var(--ink-3);font-size:12.5px}
.pager .next{text-align:right;grid-column:2}

/* galleries */
.gal-head{margin:0 0 24px}
.gal-group{margin:0 0 40px}
.gal-group h2{font-size:20px;margin:0 0 12px;display:flex;align-items:baseline;gap:10px}
.gal-group h2 a{color:var(--ink);text-decoration:none}
.gal-group h2 small{font-family:var(--sans);font-size:13px;color:var(--ink-3);font-weight:400}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:12px;list-style:none;padding:0;margin:0}
.grid button{display:block;width:100%;padding:0;border:0;background:var(--paper);border-radius:8px;overflow:hidden;cursor:zoom-in;box-shadow:var(--shadow);text-align:left}
.grid img{display:block;width:100%;aspect-ratio:1;object-fit:cover}
.grid.pages img{aspect-ratio:auto}
.grid span{display:block;font-family:var(--sans);font-size:12.5px;color:var(--ink-2);padding:7px 9px 9px;line-height:1.3;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* viewer */
.viewer{position:fixed;inset:0;z-index:50;background:#0e0d0b;color:#f2ede4;font-family:var(--sans);overscroll-behavior:contain}
.viewer[hidden]{display:none}
.v-stage{position:absolute;inset:0;overflow:hidden;touch-action:none;cursor:grab}
.v-stage.drag{cursor:grabbing}
.v-stage img{position:absolute;left:0;top:0;transform-origin:0 0;user-select:none;-webkit-user-select:none;will-change:transform;max-width:none}
.v-stage img.anim{transition:transform .25s ease}
.v-load{position:absolute;left:50%;top:72px;transform:translateX(-50%);background:rgba(0,0,0,.6);padding:6px 12px;border-radius:999px;font-size:13px}
.v-bar{position:absolute;left:0;right:0;display:flex;align-items:center;gap:12px;padding:10px 14px;pointer-events:none}
.v-bar>*{pointer-events:auto}
.v-top{top:0;justify-content:space-between;background:linear-gradient(rgba(0,0,0,.65),transparent)}
.v-bottom{bottom:0;align-items:flex-end;justify-content:space-between;padding:40px 18px calc(16px + env(safe-area-inset-bottom));background:linear-gradient(transparent,rgba(0,0,0,.8))}
.v-count{font-size:13px;color:#bdb6aa;min-width:80px}
.v-tools{display:flex;align-items:center;gap:4px;background:rgba(30,28,25,.8);border-radius:999px;padding:3px}
.v-zoom{min-width:52px;text-align:center;font-size:13px;font-variant-numeric:tabular-nums}
.vbtn{background:rgba(30,28,25,.8);border:0;color:#f2ede4;width:40px;height:40px;border-radius:999px;display:grid;place-items:center;cursor:pointer}
.v-tools .vbtn{background:transparent;width:36px;height:36px}
.vbtn:hover{background:rgba(255,255,255,.15)}
.vbtn span{font-size:12.5px;font-weight:600}
.v-nav{position:absolute;top:50%;transform:translateY(-50%);width:48px;height:48px}
.v-prev{left:14px}.v-next{right:14px}
.v-nav[disabled]{opacity:.25;cursor:default}
.v-cap{max-width:760px;min-width:0}
.v-title{margin:0;font-family:var(--serif);font-size:19px;line-height:1.3}
.v-sub{margin:4px 0 0;font-size:13px;color:#bdb6aa;line-height:1.45}
.v-links{display:flex;gap:8px;flex-shrink:0;flex-wrap:wrap;justify-content:flex-end}
.v-links button,.v-links a{background:rgba(255,255,255,.12);border:0;color:#f2ede4;font-size:13px;padding:8px 14px;border-radius:999px;cursor:pointer;text-decoration:none;white-space:nowrap}
.v-links button:hover,.v-links a:hover{background:rgba(255,255,255,.22)}
.v-help{position:absolute;top:58px;left:50%;transform:translateX(-50%);margin:0;font-size:12px;color:#9a9286;pointer-events:none;transition:opacity .6s;white-space:nowrap}
.viewer.used .v-help{opacity:0}

@media (max-width:1000px){
  .layout{grid-template-columns:1fr}
  .menu{display:grid}
  .toc{position:fixed;left:0;top:var(--top);bottom:0;width:min(320px,86vw);z-index:20;background:var(--bg);transform:translateX(-100%);transition:transform .2s;border-right:1px solid var(--line);height:auto}
  .toc.open{transform:none}
  main{padding:28px 16px 80px}
  figure.fig.wide{margin-left:0;margin-right:0}
}
@media (max-width:640px){
  body{font-size:17.5px}
  .topnav a[data-nav="text"]{display:none}
  .topnav a{padding:6px 9px;font-size:13px}
  .brand-t{font-size:15px}
  .hero{grid-template-columns:1fr;gap:20px}
  .hero-cover{max-width:180px}
  h1,.chap-head h1{font-size:30px}
  .v-nav{top:auto;bottom:120px;transform:none}
  .v-bottom{flex-direction:column;align-items:stretch}
  .v-links{justify-content:flex-start}
  .v-help{display:none}
  .v-count{display:none}
  .grid{grid-template-columns:repeat(auto-fill,minmax(130px,1fr))}
}
@media (max-width:420px){ .topnav a[data-nav="seiten"]{display:none} }
@media (prefers-reduced-motion:reduce){*{transition:none!important}}
.figrow{display:grid;gap:20px;margin:2em -40px;align-items:start}
.figrow.n2{grid-template-columns:1fr 1fr}
.figrow.n3{grid-template-columns:1fr 1fr 1fr}
.figrow figure.fig{margin:0;max-width:none}
.figrow figcaption{font-size:13px}
@media (max-width:1000px){.figrow{margin:2em 0}}
@media (max-width:640px){
  .brand-s{display:none}
  .figrow.n3{grid-template-columns:1fr 1fr}
  .figrow{gap:12px}
  .figrow figcaption{flex-direction:column;gap:0}
}
.v-help{background:rgba(0,0,0,.7);color:#d9d2c6;padding:5px 12px;border-radius:999px}