/* =====================================================
   Regelwerk Styles
   Überarbeitet im Look von style.css
   Dunkel / modern / kantig / clean
   ===================================================== */

:root{
  --bg:#121212;
  --bg-soft:#171717;
  --section:#141414;
  --section-alt:#1a1a1a;
  --bg-elev:#1e1e1e;
  --panel:#1e1e1e;
  --panel-2:#242424;

  --text:#ededed;
  --text-dim:rgba(255,255,255,.72);
  --muted:#9e9e9e;

  --brand:#d2d2d2;
  --brand-2:#b8b8b8;
  --accent:#6f6f6f;
  --accent2:#8a8a8a;

  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.12);
  --stroke:rgba(255,255,255,.08);
  --stroke-2:rgba(255,255,255,.12);
  --glass:rgba(14,14,14,.76);

  --radius:4px;
  --radius-sm:4px;
  --shadow:none;
  --shadow-1:none;
  --shadow-2:none;

  --container:1180px;
  --max:1180px;
  --h-header:72px;
  --ease:ease;

  --gap-1:.5rem;
  --gap-2:1rem;
  --gap-3:1.5rem;
  --gap-4:2rem;
  --gap-6:3rem;

  --fs-xs:clamp(.82rem,.8vw,.92rem);
  --fs-sm:clamp(.92rem,.9vw,1rem);
  --fs-md:clamp(1rem,1vw,1.05rem);
  --fs-lg:clamp(1.15rem,1.4vw,1.25rem);
  --fs-xl:clamp(1.35rem,2.2vw,1.85rem);
  --fs-2xl:clamp(1.75rem,3vw,2.35rem);
  --fs-3xl:clamp(2.35rem,4.4vw,3.85rem);
}

/* =========================
   Reset & Base
   ========================= */
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
img,svg,video{display:block;max-width:100%}

body{
  margin:0;
  background:
    radial-gradient(560px 340px at 18% 12%, rgba(255,255,255,.035), transparent 60%),
    radial-gradient(520px 320px at 82% 5%, rgba(255,255,255,.025), transparent 62%),
    linear-gradient(180deg, #121212 0%, #101010 100%);
  color:var(--text);
  font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  line-height:1.65;
  overflow-x:hidden;
  padding-top:var(--h-header);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}

::selection{background:rgba(255,255,255,.16);color:var(--text)}

/* =========================
   Grundlayout
   ========================= */
.container{
  width:min(var(--container), calc(100% - 40px));
  margin-inline:auto;
  padding-inline:0;
}

/* =========================
   Typografie
   ========================= */
h1,h2,h3,h4,h5{
  line-height:1.12;
  letter-spacing:-.25px;
  overflow-wrap:anywhere;
  hyphens:auto;
  text-wrap:balance;
}

h1{
  font-size:var(--fs-3xl);
  color:var(--text);
  text-shadow:none;
}
h2{font-size:var(--fs-2xl);color:var(--text)}
h3{font-size:var(--fs-xl);color:var(--text)}
h4{font-size:var(--fs-lg);color:var(--text)}

p{
  color:var(--text-dim);
  font-size:var(--fs-md);
  line-height:1.7;
}
small,.text-xs{font-size:var(--fs-xs);color:rgba(255,255,255,.62)}

:where(.hero-content,.section .container,.footer .container)
  > :where(h1,h2,h3,h4,p,ul,ol,blockquote){
  margin-bottom:.95rem;
}

/* =========================
   Links & Fokus
   ========================= */
a{
  color:inherit;
  text-decoration:none;
  transition:.2s ease;
}
a:hover{opacity:1;color:#fff}

:focus-visible{
  outline:2px solid rgba(255,255,255,.38);
  outline-offset:3px;
  border-radius:0;
}

/* =========================
   Header / Navigation
   kompatibel zu .header und style.css .nav
   ========================= */
.header,
.nav{
  position:fixed;
  top:0;
  left:0;
  right:0;
  height:var(--h-header);
  z-index:100;
  display:flex;
  align-items:center;
  padding:0;
  background:linear-gradient(to bottom, rgba(10,10,10,.92), rgba(14,14,14,.72));
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid rgba(255,255,255,.05);
  box-shadow:none;
}

.header-inner,
.nav__inner{
  width:min(var(--max), calc(100% - 40px));
  margin:0 auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:100%;
  gap:16px;
}

.logo,
.brand__logo{
  display:flex;
  align-items:baseline;
  gap:.55rem;
  font-size:22px;
  font-weight:800;
  letter-spacing:.5px;
  text-transform:uppercase;
  color:var(--text);
}
.logo span,
.brand__logo span{
  color:#cfcfcf;
  font-weight:800;
  opacity:.95;
}

.nav ul,
.nav__links{
  list-style:none;
  display:flex;
  gap:12px;
  align-items:center;
  flex-wrap:wrap;
}

.nav a,
.nav__links a{
  display:inline-flex;
  align-items:center;
  padding:10px 12px;
  border-radius:0;
  font-weight:700;
  color:rgba(255,255,255,.82);
  opacity:.85;
  background:transparent;
  border:1px solid transparent;
  transition:.2s ease;
}

.nav a:hover,
.nav__links a:hover,
.nav__links a.active{
  opacity:1;
  color:#fff;
  background:rgba(255,255,255,.05);
  border-color:rgba(255,255,255,.06);
  transform:none;
}

/* =========================
   Hero
   ========================= */
.hero{
  position:relative;
  min-height:calc(92vh - var(--h-header));
  display:grid;
  place-items:center;
  text-align:left;
  overflow:hidden;
  background:
    linear-gradient(90deg, rgba(10,10,10,.90) 0%, rgba(14,14,14,.76) 52%, rgba(10,10,10,.34) 100%),
    linear-gradient(180deg, rgba(0,0,0,.18) 0%, rgba(0,0,0,.42) 100%),
    var(--bg);
}

.hero::before{
  content:"";
  position:absolute;
  inset:-40px;
  background:
    radial-gradient(560px 340px at 18% 22%, rgba(255,255,255,.04), transparent 60%),
    radial-gradient(520px 320px at 70% 20%, rgba(255,255,255,.025), transparent 62%);
  pointer-events:none;
}

.hero-content{
  position:relative;
  width:min(var(--max), calc(100% - 40px));
  margin:0 auto;
  padding:clamp(48px,7vw,92px) 0;
}

.hero-content h1{
  max-width:900px;
  color:var(--text);
  margin:0 0 14px;
}

.hero-content p{
  max-width:66ch;
  margin:0 0 22px;
  color:rgba(233,238,247,.82);
  font-size:16px;
}

.hero-cta{
  margin-top:var(--gap-3);
  display:flex;
  gap:14px;
  flex-wrap:wrap;
}

/* =========================
   Buttons
   ========================= */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:12px 16px;
  border-radius:0;
  font-weight:700;
  font-size:var(--fs-sm);
  letter-spacing:.2px;
  color:#111;
  background:linear-gradient(180deg, #8e8e8e, #666666);
  border:1px solid rgba(255,255,255,.16);
  box-shadow:none;
  transition:.18s ease;
}

.btn:hover{
  transform:translateY(-1px);
  filter:brightness(1.05);
  box-shadow:none;
}

.btn--ghost{
  background:rgba(255,255,255,.04);
  color:var(--text);
  border:1px solid rgba(255,255,255,.10);
  box-shadow:none;
}

.btn--ghost:hover{
  background:rgba(255,255,255,.08);
  color:#fff;
}

/* =========================
   Sektionen
   ========================= */
.section{
  padding:92px 0;
  background:transparent;
  border-top:1px solid rgba(255,255,255,.04);
}

.section:nth-of-type(even){background:var(--section)}
.section:nth-of-type(odd){background:var(--section-alt)}

.section .container{
  display:flex;
  flex-direction:column;
  align-items:stretch;
  background:transparent;
  border:0;
  border-radius:0;
  box-shadow:none;
  padding:0;
}

.section header{
  margin-bottom:30px;
  text-align:center;
}

.section h2{
  position:relative;
  margin:0 0 10px;
  padding-bottom:0;
}

.section h2::after{
  content:"";
  display:block;
  width:70px;
  height:1px;
  margin:16px auto 0;
  background:rgba(255,255,255,.22);
}

.section header p{
  max-width:72ch;
  margin-inline:auto;
  color:rgba(255,255,255,.70);
}

/* =========================
   Regelwerk / Content Cards
   ========================= */
.grid-2{display:grid;gap:18px;grid-template-columns:repeat(2,1fr)}
.grid-3{display:grid;gap:18px;grid-template-columns:repeat(3,1fr)}
.grid-4{display:grid;gap:18px;grid-template-columns:repeat(4,1fr)}

.card{
  background:linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,.018));
  border:1px solid rgba(255,255,255,.08);
  border-radius:0;
  padding:28px;
  box-shadow:none;
  text-align:left;
  transition:.18s ease;
}

.card:hover{
  transform:translateY(-2px);
  box-shadow:none;
  border-color:rgba(255,255,255,.14);
}

.card h3{
  margin:0 0 10px;
  color:var(--text);
  font-size:clamp(20px,1.8vw,28px);
}

.card p{
  margin:0 0 14px;
  color:rgba(255,255,255,.78);
}

.card p:last-child{margin-bottom:0}

.card ul,
.card ol,
.section ul,
.section ol{
  padding-left:1.25rem;
  color:rgba(255,255,255,.76);
}

.card li,
.section li{
  margin:.45rem 0;
}

/* Zusätzliche Regel-Boxen, falls im HTML vorhanden */
.rule-box,
.rule-card,
.rule,
.regel,
.info-panel,
.feature-card,
.stack-card{
  background:var(--panel);
  border:1px solid rgba(255,255,255,.08);
  border-radius:0;
  padding:22px;
  box-shadow:none;
}

.rule-box:hover,
.rule-card:hover,
.feature-card:hover,
.stack-card:hover{
  border-color:rgba(255,255,255,.14);
}

/* =========================
   Galerie
   ========================= */
.gallery{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
  gap:18px;
}

.gallery img{
  width:100%;
  aspect-ratio:1/1;
  object-fit:cover;
  border-radius:0;
  cursor:zoom-in;
  border:1px solid rgba(255,255,255,.08);
  box-shadow:none;
  filter:saturate(.9) contrast(1.02) brightness(.78);
  transition:.18s ease;
}

.gallery img:hover{
  transform:scale(1.012);
  filter:saturate(.95) contrast(1.04) brightness(.9);
  border-color:rgba(255,255,255,.16);
}

/* =========================
   Footer
   ========================= */
.footer{
  padding:26px 0;
  background:#101010;
  border-top:1px solid rgba(255,255,255,.06);
  margin-top:0;
}

.footer .container,
.footer__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  padding:0;
  color:rgba(255,255,255,.62);
  text-align:left;
  font-size:var(--fs-sm);
}

.footer__links{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
}

.muted{color:rgba(255,255,255,.62)}

/* =========================
   Utilities
   ========================= */
.center{display:flex;align-items:center;justify-content:center}
.stack{display:flex;flex-direction:column;gap:var(--gap-2)}
.max-w{max-width:68ch}
.mt-2{margin-top:var(--gap-2)}
.mt-4{margin-top:var(--gap-4)}
.mb-4{margin-bottom:var(--gap-4)}
.accent{color:#d2d2d2}

/* =========================
   Responsive
   ========================= */
@media (max-width:1100px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
}

@media (max-width:980px){
  .nav ul,
  .nav__links{display:none}

  .hero{
    text-align:left;
    min-height:auto;
  }

  .hero-content{
    padding:74px 0;
  }

  .grid-3{grid-template-columns:repeat(2,1fr)}
}

@media (max-width:720px){
  body{padding-top:68px}
  :root{--h-header:68px}

  .container,
  .header-inner,
  .nav__inner,
  .hero-content{
    width:min(var(--max), calc(100% - 28px));
  }

  .section{padding:74px 0}

  .grid-2,
  .grid-3,
  .grid-4{
    grid-template-columns:1fr;
  }

  .card,
  .rule-box,
  .rule-card,
  .rule,
  .regel,
  .info-panel,
  .feature-card,
  .stack-card{
    padding:22px;
  }

  .footer .container,
  .footer__inner{
    flex-direction:column;
    align-items:flex-start;
  }
}

/* =========================
   Reduced Motion
   ========================= */
@media (prefers-reduced-motion:reduce){
  *,
  *::before,
  *::after{
    scroll-behavior:auto!important;
    transition:none!important;
    animation:none!important;
  }
}


/* =========================
   UX Erweiterungen Regelwerk
   Keine Farb-/Designänderung, nur bessere Bedienung
   ========================= */
.rules-tools .container{
  background:var(--bg-elev);
  border:1px solid rgba(255,255,255,.08);
  box-shadow:none;
  padding:18px;
}
.rules-search{
  display:grid;
  gap:8px;
  font-weight:800;
  color:var(--text);
}
.rules-search input{
  width:100%;
  border:1px solid rgba(255,255,255,.10);
  background:rgba(255,255,255,.04);
  color:var(--text);
  padding:13px 14px;
  font:inherit;
  outline:none;
}
.rules-search input:focus{
  border-color:rgba(255,255,255,.28);
  background:rgba(255,255,255,.06);
}
.rules-result{
  margin-top:10px;
  color:rgba(255,255,255,.68);
  font-size:var(--fs-sm);
}
.rules-toc{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:16px;
}
.rules-toc a{
  padding:8px 10px;
  border:1px solid rgba(255,255,255,.08);
  background:rgba(255,255,255,.04);
  color:rgba(255,255,255,.82);
  font-weight:700;
  font-size:var(--fs-sm);
}
.rules-toc a:hover{
  background:rgba(255,255,255,.08);
  color:#fff;
}
.rule-hidden{display:none!important;}
.section.rule-section-hidden{display:none!important;}
.rule-mark{
  background:rgba(255,255,255,.16);
  color:#fff;
  padding:0 .15em;
}
.reveal{
  opacity:0;
  transform:translateY(18px);
  transition:opacity .5s ease, transform .5s ease;
}
.reveal.is-visible{
  opacity:1;
  transform:translateY(0);
}
.to-top{
  position:fixed;
  right:18px;
  bottom:18px;
  z-index:120;
  width:44px;
  height:44px;
  border:1px solid rgba(255,255,255,.10);
  background:rgba(24,24,24,.84);
  color:#fff;
  cursor:pointer;
  opacity:0;
  pointer-events:none;
  transition:.2s ease;
}
.to-top.is-visible{opacity:1;pointer-events:auto;}
@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *{scroll-behavior:auto!important}
}

/* Optimierung: keine Schatten und kein Hero-Bild */
.hero__youtube-bg,.hero__artShadow{display:none!important;}
*{box-shadow:none!important;text-shadow:none!important;}


/* =========================
   Regelwerk: durchgängiger Hintergrund
   Keine abgehackten Farbblöcke zwischen den Abschnitten
   ========================= */
body{
  background:#121212!important;
}
main,
.rules{
  background:#121212!important;
}
.rules .section,
.section,
.section:nth-of-type(even),
.section:nth-of-type(odd){
  background:transparent!important;
}
.rules .section{
  border-top:0!important;
  padding-top:72px;
  padding-bottom:72px;
}
.rules-tools{
  padding-top:44px!important;
  padding-bottom:34px!important;
}
.rules-tools .container{
  background:var(--panel)!important;
}
.footer{
  background:#101010!important;
}


/* =========================
   Regelwerk UX-Verbesserung
   Farben und Grundaufbau bleiben gleich
   ========================= */
.rules-hero{
  padding:64px 0 34px!important;
  border-top:0!important;
  background:transparent!important;
}
.rules-hero .container{
  background:linear-gradient(180deg, rgba(30,30,30,.98), rgba(24,24,24,.98))!important;
  border:1px solid rgba(255,255,255,.08)!important;
  padding:34px!important;
  border-radius:0!important;
}
.rules-hero h1{
  margin:10px 0 12px;
  font-size:clamp(2.2rem, 5vw, 4.2rem);
}
.rules-hero p{
  max-width:78ch;
  color:rgba(255,255,255,.72);
}
.rules-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:20px;
}
.rules-meta span{
  display:inline-flex;
  border:1px solid rgba(255,255,255,.08);
  background:rgba(255,255,255,.04);
  padding:8px 10px;
  font-weight:700;
  font-size:var(--fs-xs);
  color:rgba(255,255,255,.78);
}
.rules-tools .container{
  border:1px solid rgba(255,255,255,.08)!important;
  padding:22px!important;
}
.rules-search{
  display:grid;
  gap:8px;
}
.rules-search span{
  font-weight:800;
  color:rgba(255,255,255,.86);
}
#ruleSearch{
  min-height:48px;
  border:1px solid rgba(255,255,255,.10);
  background:#151515;
  color:#fff;
  padding:0 14px;
  outline:none;
  border-radius:0;
}
#ruleSearch:focus{
  border-color:rgba(255,255,255,.22);
  background:#181818;
}
.rules-result{
  margin-top:10px;
  color:rgba(255,255,255,.65);
  font-size:var(--fs-sm);
}
.rules-toc{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:16px;
}
.rules-toc a{
  border:1px solid rgba(255,255,255,.08);
  background:rgba(255,255,255,.04);
  padding:8px 10px;
  color:rgba(255,255,255,.78);
  font-weight:700;
}
.rules-toc a:hover{
  background:rgba(255,255,255,.08);
  color:#fff;
}
.rules .section > header.container{
  padding-bottom:6px;
  border-bottom:1px solid rgba(255,255,255,.06);
}
ol.rule-list > li{
  transition:background .18s ease, border-color .18s ease, transform .18s ease;
}
ol.rule-list > li:hover{
  background:var(--panel-2);
  border-color:rgba(255,255,255,.13);
  transform:translateY(-1px);
}
.rule-mark{
  background:rgba(255,255,255,.16);
  color:#fff;
  padding:0 .15em;
}
@media (max-width:720px){
  .rules-hero .container,
  .rules-tools .container{padding:20px!important;}
  .rules .section{padding-top:48px!important;padding-bottom:48px!important;}
}