/* Modern redesign — Inhalt übernommen, Design neu (ohne Framework) */
:root{
  --bg: 248 250 252;
  --fg: 15 23 42;
  --muted: 100 116 139;
  --card: 255 255 255;
  --border: 226 232 240;

  --accent: 99 102 241;
  --accent2: 20 184 166;

  --radius: 18px;
  --max: 1120px;
  --header-h: 72px;
}
:root[data-theme="dark"]{
  --bg: 2 6 23;
  --fg: 226 232 240;
  --muted: 148 163 184;
  --card: 15 23 42;
  --border: 30 41 59;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font:16px/1.6 ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial,"Apple Color Emoji","Segoe UI Emoji";
  color: rgb(var(--fg));
  background: rgb(var(--bg));
}
a{color:inherit;text-decoration:none}
a:hover{opacity:.95}
.link{color: color-mix(in oklab, rgb(var(--accent)) 75%, rgb(var(--fg)))}
.link:hover{text-decoration:underline}

.container{width:min(100% - 2rem, var(--max)); margin-inline:auto}

.skip-link{position:absolute; left:-999px; top:auto; width:1px; height:1px; overflow:hidden}
.skip-link:focus{
  left:1rem; top:1rem; width:auto; height:auto;
  padding:.75rem 1rem; border-radius:999px;
  background: rgb(var(--card)); border:1px solid rgb(var(--border));
  box-shadow:0 10px 30px rgba(0,0,0,.12);
  z-index:1000;
}

.site-header{
  position:sticky; top:0; z-index:100;
  height: var(--header-h);
  backdrop-filter: blur(10px);
  background: color-mix(in oklab, rgb(var(--bg)) 88%, transparent);
  border-bottom:1px solid rgb(var(--border));
}
.header-inner{
  height:100%;
  display:flex; align-items:center; justify-content:space-between;
  gap:1rem;
}
.brand{display:flex; align-items:center; gap:.75rem; font-weight:800}
.brand-mark{
  width:40px; height:40px; border-radius:14px;
  display:grid; place-items:center;
  background: linear-gradient(135deg, rgb(var(--accent)), rgb(var(--accent2)));
  color:#fff;
  box-shadow:0 10px 30px rgba(0,0,0,.18);
}
.nav{display:flex; align-items:center; gap:1rem}
.nav-menu{
  display:flex; align-items:center; gap:.9rem;
  list-style:none; margin:0; padding:0;
}
.nav-menu a{
  padding:.45rem .65rem; border-radius:999px;
  color: rgb(var(--muted));
}
.nav-menu a:hover{
  color: rgb(var(--fg));
  background: color-mix(in oklab, rgb(var(--card)) 92%, transparent);
}
.header-actions{display:flex; align-items:center; gap:.75rem}
.theme-toggle{
  width:44px; height:44px; border-radius:999px;
  border:1px solid rgb(var(--border));
  background: rgb(var(--card));
  display:grid; place-items:center;
  box-shadow:0 12px 30px rgba(0,0,0,.10);
  cursor:pointer;
}
.icon{width:20px; height:20px; fill: currentColor; opacity:.9}
.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}

.nav-toggle{
  display:none; width:44px; height:44px; border-radius:999px;
  border:1px solid rgb(var(--border));
  background: rgb(var(--card));
  box-shadow:0 12px 30px rgba(0,0,0,.10);
  cursor:pointer; place-items:center;
}
.burger{width:18px; height:2px; background: rgb(var(--fg)); position:relative; border-radius:2px}
.burger::before,.burger::after{content:""; position:absolute; left:0; width:18px; height:2px; background: rgb(var(--fg)); border-radius:2px}
.burger::before{top:-6px}
.burger::after{top:6px}

.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:.5rem;
  padding:.75rem 1rem;
  border-radius:999px;
  border:1px solid rgb(var(--border));
  background: rgb(var(--card));
  box-shadow:0 12px 30px rgba(0,0,0,.10);
  font-weight:800;
  color: rgb(var(--fg));

}
.btn:hover{transform: translateY(-1px)}
.btn:active{transform: translateY(0)}
.btn-primary{
  border-color: color-mix(in oklab, rgb(var(--accent)) 55%, rgb(var(--border)));
  background: linear-gradient(135deg, rgb(var(--accent)), rgb(var(--accent2)));
  color:#fff;
}
.btn-ghost{background:transparent; box-shadow:none}

.card{
  border:1px solid rgb(var(--border));
  background: rgb(var(--card));
  border-radius: var(--radius);
  padding:1.25rem;
  box-shadow:0 20px 50px rgba(0,0,0,.10);
}
.glass{
  background: color-mix(in oklab, rgb(var(--card)) 80%, transparent);
  backdrop-filter: blur(12px);
}

.section{padding:4.25rem 0}
.section-head{display:flex; align-items:flex-end; justify-content:space-between; gap:1rem; margin-bottom:1.5rem}
.section h2{font-size: clamp(1.5rem, 3vw, 2.1rem); margin:0}
h3{margin:.25rem 0 .5rem}
p{margin:.6rem 0}
.muted{color: rgb(var(--muted))}
.strong{font-weight:900}

.hero{position:relative; padding: clamp(4rem, 7vw, 6.5rem) 0 3rem; overflow:hidden}
.hero-grid{display:grid; gap:2rem; grid-template-columns: 1.1fr .9fr; align-items:center; position:relative; z-index:2}
.kicker{font-weight:900; color: rgb(var(--muted)); margin:0 0 .25rem}
.hero h1{margin:.25rem 0 .65rem; font-size: clamp(2.2rem, 4vw, 3.4rem); letter-spacing:-.02em}
.lead{margin:0 0 1.25rem; font-size:1.06rem}
.hero-cta{display:flex; gap:.75rem; flex-wrap:wrap; margin-bottom:1.25rem}
.hero-stats{
  display:grid; grid-template-columns: repeat(3, minmax(0,1fr));
  gap:.75rem; margin:0;
}
.hero-stats div{
  border:1px solid rgb(var(--border));
  background: color-mix(in oklab, rgb(var(--card)) 92%, transparent);
  border-radius: var(--radius);
  padding:.85rem;
}
.hero-stats dt{color: rgb(var(--muted)); font-weight:900; font-size:.9rem}
.hero-stats dd{margin:.25rem 0 0; font-weight:900}

.profile{display:flex; align-items:center; gap:1rem}
.profile-img{width:84px; height:84px; border-radius:22px; object-fit:cover; border:1px solid rgb(var(--border))}
.profile-note{margin-top:.9rem; padding-top:.9rem; border-top:1px solid rgb(var(--border))}

.books-grid{display:grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap:1rem}
.book-card{
  border:1px solid rgb(var(--border));
  background: color-mix(in oklab, rgb(var(--card)) 92%, transparent);
  border-radius: var(--radius);
  padding:1rem;
  box-shadow:0 18px 45px rgba(0,0,0,.08);
  display:flex; flex-direction:column; gap:.9rem;
}
.book-media{
  display:grid; place-items:center;
  border-radius:16px;
  border:1px solid rgb(var(--border));
  background: color-mix(in oklab, rgb(var(--card)) 92%, transparent);
  padding:.75rem;
}
.book-media img{max-width:86px; height:auto}

.cols{display:grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap:1rem}
.contact-row{display:flex; align-items:center; gap:1rem}
.contact-img{width:72px; height:72px; border-radius:20px; object-fit:cover; border:1px solid rgb(var(--border))}

.legal-toolbar{display:flex; gap:.75rem; align-items:center; flex-wrap:wrap; margin-bottom:1rem}
.legal-search{
  flex:1; min-width:220px;
  padding:.75rem .9rem; border-radius:14px;
  border:1px solid rgb(var(--border));
  background: color-mix(in oklab, rgb(var(--card)) 92%, transparent);
  color: rgb(var(--fg));
  outline:none;
}
.legal-search:focus{
  border-color: color-mix(in oklab, rgb(var(--accent)) 65%, rgb(var(--border)));
  box-shadow: 0 0 0 4px color-mix(in oklab, rgb(var(--accent)) 20%, transparent);
}
.legal-content{
  max-height:520px;
  overflow:auto;
  padding-right:.5rem;
}
.legal-content h2{font-size:1.35rem}
.legal-content h3{font-size:1.15rem}
.legal-content h4{font-size:1.02rem}
.legal-content ul{padding-left:1.15rem}
.legal-content ul[style*="list-style: none"]{padding-left:0; list-style:none}
.legal-content a{color: color-mix(in oklab, rgb(var(--accent)) 75%, rgb(var(--fg)))}
.legal-content mark{background: color-mix(in oklab, rgb(var(--accent2)) 28%, transparent); padding:0 .2em; border-radius:.35em}

.site-footer{padding:2.25rem 0; border-top:1px solid rgb(var(--border)); background: color-mix(in oklab, rgb(var(--bg)) 92%, transparent)}
.footer-inner{display:flex; align-items:center; justify-content:space-between; gap:1rem; flex-wrap:wrap}
.footer-links{display:flex; gap:1rem; flex-wrap:wrap}
.footer-links a{color: rgb(var(--muted))}
.footer-links a:hover{color: rgb(var(--fg))}

.hero-bg{position:absolute; inset:0; z-index:1}
.blob{position:absolute; width:520px; height:520px; filter: blur(38px); opacity:.35; border-radius:50%}
.blob-a{left:-220px; top:-260px; background: radial-gradient(circle at 30% 30%, rgb(var(--accent)), transparent 60%)}
.blob-b{right:-240px; bottom:-280px; background: radial-gradient(circle at 30% 30%, rgb(var(--accent2)), transparent 60%)}
.grid-fade{
  position:absolute; inset:0;
  background:
    linear-gradient(to bottom, rgba(0,0,0,0), color-mix(in oklab, rgb(var(--bg)) 90%, transparent)),
    radial-gradient(circle at 50% 0%, color-mix(in oklab, rgb(var(--card)) 22%, transparent), transparent 55%),
    repeating-linear-gradient(90deg, color-mix(in oklab, rgb(var(--border)) 65%, transparent) 0 1px, transparent 1px 70px),
    repeating-linear-gradient(0deg, color-mix(in oklab, rgb(var(--border)) 65%, transparent) 0 1px, transparent 1px 70px);
  opacity:.45;
}

.reveal{opacity:0; transform: translateY(10px); transition: opacity .7s ease, transform .7s ease}
.reveal.is-visible{opacity:1; transform: translateY(0)}

@media (max-width: 980px){
  .hero-grid{grid-template-columns: 1fr}
  .books-grid{grid-template-columns: 1fr}
  .cols{grid-template-columns: 1fr}
  .section-head{flex-direction:column; align-items:flex-start}
  .hero-stats{grid-template-columns: 1fr}
}
@media (max-width: 760px){
  .nav-toggle{display:grid}
  .nav-menu{
    position:absolute;
    right:1rem; top: calc(var(--header-h) - 8px);
    width:min(320px, calc(100vw - 2rem));
    padding:.75rem;
    border-radius:18px;
    border:1px solid rgb(var(--border));
    background: rgb(var(--card));
    box-shadow: 0 30px 70px rgba(0,0,0,.20);
    display:none;
    flex-direction:column;
    align-items:stretch;
  }
  .nav-menu.open{display:flex}
  .nav-menu a{padding:.7rem .85rem}
}


/* ===== V2 Style Enhancements ===== */
:root{
  --ring: 99 102 241;
  --shadow-lg: 0 25px 80px rgba(0,0,0,.18);
  --shadow-md: 0 18px 55px rgba(0,0,0,.14);
}
:root[data-theme="dark"]{
  --shadow-lg: 0 25px 80px rgba(0,0,0,.55);
  --shadow-md: 0 18px 55px rgba(0,0,0,.42);
}

body{
  background:
    radial-gradient(1200px 600px at 10% -10%, color-mix(in oklab, rgb(var(--accent)) 16%, transparent), transparent 60%),
    radial-gradient(900px 500px at 95% 10%, color-mix(in oklab, rgb(var(--accent2)) 14%, transparent), transparent 55%),
    rgb(var(--bg));
}

.card{box-shadow: var(--shadow-md)}
.site-header{background: color-mix(in oklab, rgb(var(--bg)) 82%, transparent)}
.brand-mark{box-shadow: 0 16px 40px rgba(0,0,0,.22)}

.section{padding: 4.75rem 0}
.section-head p{max-width: 62ch}

.hero h1{letter-spacing:-.03em}
.lead{font-size: 1.12rem; max-width: 58ch}

.btn{
  box-shadow: 0 14px 40px rgba(0,0,0,.14);
  transition: transform .15s ease, box-shadow .15s ease, opacity .15s ease;
}
.btn:hover{transform: translateY(-2px); box-shadow: 0 18px 55px rgba(0,0,0,.16)}
.btn:active{transform: translateY(-1px)}

.books-grid{gap: 1.25rem}
.book-card{
  padding: 1.1rem;
  box-shadow: var(--shadow-md);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
  border-color: color-mix(in oklab, rgb(var(--border)) 80%, rgb(var(--accent)) 20%);
}
.book-card:hover{
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: color-mix(in oklab, rgb(var(--accent)) 55%, rgb(var(--border)));
}
.book-media{
  padding: 1.15rem;
  border-radius: 20px;
  background:
    radial-gradient(circle at 30% 20%, color-mix(in oklab, rgb(var(--accent)) 10%, transparent), transparent 55%),
    radial-gradient(circle at 80% 40%, color-mix(in oklab, rgb(var(--accent2)) 9%, transparent), transparent 60%),
    color-mix(in oklab, rgb(var(--card)) 92%, transparent);
}
.book-media img{
  max-width: 150px; /* was ~86 */
  width: 100%;
  height: auto;
  filter: drop-shadow(0 14px 24px rgba(0,0,0,.20));
}
.book-body h3{font-size: 1.1rem}
.book-actions .btn{width: 100%}

.hero-stats div{
  box-shadow: 0 12px 30px rgba(0,0,0,.10);
}

.legal{
  position: relative;
  overflow: hidden;
}
.legal::before{
  content:"";
  position:absolute;
  inset:-2px;
  background: linear-gradient(135deg,
    color-mix(in oklab, rgb(var(--accent)) 50%, transparent),
    color-mix(in oklab, rgb(var(--accent2)) 45%, transparent)
  );
  opacity:.18;
  pointer-events:none;
}
.legal > *{position:relative}

.legal-content{
  scrollbar-width: thin;
}
.legal-content::-webkit-scrollbar{width: 10px}
.legal-content::-webkit-scrollbar-thumb{
  background: color-mix(in oklab, rgb(var(--accent)) 45%, rgb(var(--border)));
  border-radius: 999px;
  border: 2px solid color-mix(in oklab, rgb(var(--card)) 92%, transparent);
}
.legal-content::-webkit-scrollbar-track{background: transparent}

/* subtle separators */
.section:nth-of-type(odd) .container > .card,
.section:nth-of-type(odd) .container .book-card{
  background: color-mix(in oklab, rgb(var(--card)) 88%, transparent);
}

/* Focus ring */
a:focus-visible, button:focus-visible, input:focus-visible{
  outline: 3px solid color-mix(in oklab, rgb(var(--ring)) 55%, transparent);
  outline-offset: 3px;
}