:root{
  --ink:#20302e; --ink-soft:#52605c; --paper:#faf9f5; --panel:#ffffff;
  --accent:#3f7d6e; --accent-soft:#e7efeb; --line:#e3e0d6;
  --sidebar:18rem; --maxw:44rem;
  --display:"Spectral",Georgia,serif; --body:"Inter",system-ui,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--body);font-size:1.05rem;line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-underline-offset:2px}

/* ---- Top-Bar ---- */
.topbar{position:sticky;top:0;z-index:30;display:flex;align-items:center;gap:1rem;
  background:var(--panel);border-bottom:1px solid var(--line);padding:.85rem 1.2rem}
.brand{font-family:var(--display);font-weight:600;font-size:1.25rem;color:var(--ink);
  text-decoration:none;letter-spacing:-.01em}
.brand .mark{color:var(--accent)}
.menu-toggle{display:none;margin-left:auto;font-size:1.5rem;background:none;border:0;
  color:var(--ink);cursor:pointer;line-height:1}
#nav-switch{display:none}

/* ---- Layout ---- */
.layout{display:grid;grid-template-columns:var(--sidebar) 1fr;
  max-width:74rem;margin:0 auto;align-items:start}
.sidebar{position:sticky;top:3.4rem;align-self:start;height:calc(100vh - 3.4rem);
  overflow-y:auto;padding:1.6rem 1rem 3rem;border-right:1px solid var(--line);
  font-size:.92rem}
.sidebar a{color:var(--ink-soft);text-decoration:none;display:block;
  padding:.22rem .4rem;border-radius:5px}
.sidebar a:hover{background:var(--accent-soft);color:var(--ink)}
.sidebar a[aria-current="page"]{background:var(--accent-soft);color:var(--ink);
  font-weight:600;box-shadow:inset 2px 0 0 var(--accent)}
.sidebar details{margin:.1rem 0}
.sidebar summary{cursor:pointer;list-style:none;padding:.22rem .4rem;border-radius:5px;
  color:var(--ink);font-weight:500;display:flex;align-items:center;gap:.35rem}
.sidebar summary::-webkit-details-marker{display:none}
.sidebar summary::before{content:"▸";color:var(--accent);font-size:.7rem;
  transition:transform .15s}
.sidebar details[open]>summary::before{transform:rotate(90deg)}
.sidebar summary:hover{background:var(--accent-soft)}
.sidebar .lvl1{margin-left:.5rem;border-left:1px solid var(--line);padding-left:.4rem}
.sidebar .lvl2{margin-left:.5rem;border-left:1px solid var(--line);padding-left:.4rem}
.sidebar .sec-title{font-family:var(--display);font-size:.78rem;letter-spacing:.12em;
  text-transform:uppercase;color:var(--accent);font-weight:600;margin:1.3rem 0 .3rem .4rem}

/* ---- Inhalt ---- */
main{padding:2.6rem 2.4rem 4rem;min-width:0}
.content{max-width:var(--maxw)}
.eyebrow{font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--accent);font-weight:600;margin:0 0 .5rem}
h1{font-family:var(--display);font-weight:600;font-size:clamp(1.8rem,4vw,2.6rem);
  line-height:1.14;letter-spacing:-.015em;margin:.1rem 0 1.3rem}
h1::after{content:"";display:block;width:3rem;height:3px;margin-top:.9rem;
  background:var(--accent);border-radius:2px}
h2{font-family:var(--display);font-weight:600;font-size:1.5rem;margin:2.4rem 0 .7rem}
h3{font-size:1.15rem;font-weight:600;margin:1.6rem 0 .5rem}
p{margin:0 0 1.05rem}
img{max-width:100%;height:auto;border-radius:6px;margin:1.3rem 0;border:1px solid var(--line)}
.hero-figs{display:flex;gap:.8rem;flex-wrap:wrap;margin:1.3rem 0}
.hero-figs a{flex:1 1 0;line-height:0}
.hero-figs img{width:100%;margin:0}
.book-cover{width:210px;height:auto;float:right;margin:.2rem 0 1rem 1.6rem}
.book-entry{overflow:hidden;padding:1.4rem 0;border-bottom:1px solid var(--line)}
.book-entry:last-child{border-bottom:0}
.book-entry p:first-of-type{margin-top:0}
.book-shots{display:flex;flex-wrap:wrap;gap:.7rem;margin:1.3rem 0;clear:both}
.book-shots a{flex:0 0 auto;line-height:0}
.book-shots img{width:160px;height:auto;margin:0;border:1px solid var(--line);border-radius:4px}
.float-img{float:right;max-width:280px;margin:.4rem 0 1.1rem 1.6rem}
.lead-cluster{float:right;width:200px;margin:.4rem 0 1.1rem 1.6rem;
  display:flex;flex-direction:column;gap:.7rem}
.lead-cluster img{width:100%;margin:0}
.content::after{content:"";display:block;clear:both}
ul,ol{padding-left:1.2rem}li{margin:.3rem 0}
blockquote{margin:1.5rem 0;padding:.3rem 0 .3rem 1.2rem;border-left:3px solid var(--accent);
  color:var(--ink-soft);font-style:italic}
hr{border:0;border-top:1px solid var(--line);margin:2.2rem 0}

/* ---- Bereichs-Karten (Startseite) ---- */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(15rem,1fr));
  gap:1rem;margin:2rem 0}
.card{display:block;text-decoration:none;border:1px solid var(--line);border-radius:10px;
  padding:1.1rem 1.2rem;background:var(--panel);color:var(--ink);transition:border-color .15s}
.card:hover{border-color:var(--accent)}
.card h3{margin:0 0 .35rem;font-family:var(--display);color:var(--ink)}
.card p{margin:0;font-size:.9rem;color:var(--ink-soft);line-height:1.5}

footer.site{border-top:1px solid var(--line);background:var(--panel);color:var(--ink-soft);
  font-size:.88rem;padding:1.6rem 2.4rem;margin-top:0}
footer.site a{color:var(--ink-soft);margin-right:1rem}

@media (max-width:820px){
  .layout{grid-template-columns:1fr}
  .menu-toggle{display:block}
  .sidebar{position:fixed;top:0;left:0;bottom:0;width:min(82vw,20rem);height:100vh;
    background:var(--paper);z-index:40;transform:translateX(-100%);transition:transform .2s;
    border-right:1px solid var(--line);box-shadow:2px 0 12px rgba(0,0,0,.06)}
  #nav-switch:checked ~ .layout .sidebar{transform:translateX(0)}
  main{padding:1.8rem 1.3rem 3rem}
  .float-img{float:none;max-width:100%;margin:1.3rem 0}
  .book-cover{float:none;margin:1.3rem 0}
  .lead-cluster{float:none;width:auto;flex-direction:row;flex-wrap:wrap;margin:1.3rem 0}
  .lead-cluster img{width:auto;max-width:45%}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.sidebar{transition:none}}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:3px}