:root {
  color-scheme: dark;
  --ink: #dce8ea;
  --muted: #90a5aa;
  --panel: rgba(12, 25, 31, .84);
  --line: rgba(112, 224, 232, .2);
  --cyan: #38f4ff;
  --coral: #ff8153;
  --black: #05090c;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { background: var(--black); scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: radial-gradient(circle at 15% 12%, #11313a 0, transparent 34%), radial-gradient(circle at 84% 30%, #392015 0, transparent 30%), #05090c; font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; font-size: 17px; line-height: 1.65; }
a { color: inherit; text-underline-offset: .2em; }
img { display: block; max-width: 100%; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
[data-lang-block] { display: none; }
html[data-lang="de"] [data-lang-block="de"], html[data-lang="en"] [data-lang-block="en"] { display: revert; }
.skip-link { position: fixed; z-index: 100; top: 12px; left: 12px; transform: translateY(-160%); padding: 10px 14px; background: #fff; color: #000; border-radius: 8px; }
.skip-link:focus { transform: none; }

.site-header { position: fixed; z-index: 30; inset: 0 0 auto; padding: max(15px, env(safe-area-inset-top)) max(18px, env(safe-area-inset-right)) 14px max(18px, env(safe-area-inset-left)); background: linear-gradient(180deg, rgba(4, 8, 11, .95), rgba(4, 8, 11, .62) 72%, transparent); }
.header-inner { width: min(var(--max), 100%); margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; font-weight: 800; letter-spacing: .08em; }
.brand img { width: 42px; height: 42px; border-radius: 12px; box-shadow: 0 0 24px rgba(56,244,255,.24); }
.main-nav { display: flex; align-items: center; gap: clamp(16px, 2vw, 30px); }
.main-nav a { color: var(--muted); text-decoration: none; font-size: .86rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; }
.main-nav a:hover, .main-nav a:focus-visible { color: white; }
.lang-switch { display: inline-flex; padding: 3px; border: 1px solid var(--line); border-radius: 999px; background: rgba(6, 15, 20, .72); }
.lang-switch button { border: 0; border-radius: 999px; padding: 5px 9px; background: transparent; color: var(--muted); cursor: pointer; font-size: .76rem; font-weight: 800; }
.lang-switch button.is-active { background: rgba(56,244,255,.15); color: var(--cyan); }
.nav-toggle { display: none; border: 1px solid var(--line); border-radius: 10px; color: var(--ink); background: rgba(8,18,23,.92); width: 44px; height: 42px; }

.hero { position: relative; min-height: min(890px, 100svh); display: grid; align-items: end; overflow: hidden; isolation: isolate; }
.hero::before { content: ""; position: absolute; inset: 0; z-index: -3; background: url('/assets/arena-crossfire.jpg') center 44%/cover no-repeat; filter: saturate(1.05) contrast(1.08); transform: scale(1.015); }
.hero::after { content: ""; position: absolute; inset: 0; z-index: -2; background: linear-gradient(180deg, rgba(3,6,8,.06), rgba(3,6,8,.25) 42%, #05090c 95%), linear-gradient(90deg, rgba(3,6,8,.8), transparent 62%); }
.hero-grid { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; padding: 150px 0 95px; display: grid; grid-template-columns: minmax(0, 690px) 1fr; align-items: end; gap: 50px; }
.hero-logo { width: min(650px, 88vw); margin-bottom: 28px; filter: drop-shadow(0 10px 32px #000); }
.eyebrow { margin: 0 0 10px; color: var(--cyan); font-size: .76rem; font-weight: 900; letter-spacing: .22em; text-transform: uppercase; }
h1, h2, h3 { margin: 0; line-height: 1.05; letter-spacing: -.035em; }
h1 { max-width: 790px; font-size: clamp(3rem, 7.3vw, 6.7rem); text-transform: uppercase; }
h2 { font-size: clamp(2.2rem, 4.6vw, 4.7rem); }
h3 { font-size: 1.35rem; }
.lead { max-width: 690px; margin: 24px 0 0; color: #c3d0d2; font-size: clamp(1.05rem, 1.5vw, 1.3rem); }
.actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.button { min-height: 54px; display: inline-flex; align-items: center; justify-content: center; gap: 10px; padding: 13px 21px; border: 1px solid rgba(56,244,255,.64); border-radius: 4px 14px 4px 14px; color: #eaffff; background: linear-gradient(120deg, rgba(14,58,66,.94), rgba(9,28,34,.94)); box-shadow: inset 0 0 20px rgba(56,244,255,.08), 0 0 28px rgba(56,244,255,.12); text-decoration: none; font-weight: 800; }
.button.secondary { border-color: rgba(255,129,83,.5); background: linear-gradient(120deg, rgba(65,31,21,.92), rgba(27,16,13,.92)); }
.button[aria-disabled="true"] { cursor: default; opacity: .78; }
.spec { justify-self: end; width: 230px; padding: 22px; border: 1px solid var(--line); border-radius: 3px 22px 3px 22px; background: rgba(4, 13, 17, .68); backdrop-filter: blur(16px); }
.spec strong { display: block; font-size: 1.7rem; color: white; }
.spec span { color: var(--muted); font-size: .78rem; letter-spacing: .12em; text-transform: uppercase; }

.section { padding: 110px max(20px, env(safe-area-inset-right)) 110px max(20px, env(safe-area-inset-left)); }
.section-inner { width: min(var(--max), 100%); margin: 0 auto; }
.section-head { display: grid; grid-template-columns: 1fr minmax(260px, 440px); align-items: end; gap: 40px; margin-bottom: 50px; }
.section-head p { margin: 0; color: var(--muted); }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.feature { position: relative; min-height: 260px; padding: 30px; overflow: hidden; border: 1px solid var(--line); border-radius: 4px 26px 4px 26px; background: linear-gradient(145deg, rgba(18,37,43,.88), rgba(7,14,18,.9)); }
.feature::before { content: ""; position: absolute; inset: 0 auto auto 0; width: 80px; height: 2px; background: var(--accent, var(--cyan)); box-shadow: 0 0 22px var(--accent, var(--cyan)); }
.feature:nth-child(2) { --accent: var(--coral); }
.feature-index { color: var(--accent, var(--cyan)); font-size: .75rem; font-weight: 900; letter-spacing: .18em; }
.feature h3 { margin-top: 54px; }
.feature p { margin: 14px 0 0; color: var(--muted); }
.cinema { padding-top: 30px; }
.cinema-frame { position: relative; width: min(1420px, calc(100% - 30px)); margin: 0 auto; border: 1px solid rgba(112,224,232,.23); border-radius: 5px 36px 5px 36px; overflow: hidden; background: #020405; box-shadow: 0 34px 90px rgba(0,0,0,.48); }
.cinema-frame img { width: 100%; aspect-ratio: 16/8.7; object-fit: cover; }
.cinema-copy { position: absolute; inset: auto 0 0; display: flex; align-items: end; justify-content: space-between; gap: 30px; padding: clamp(24px, 5vw, 65px); background: linear-gradient(transparent, rgba(2,5,7,.95)); }
.cinema-copy p { max-width: 480px; margin: 0; color: #b6c5c8; }

.access-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 20px; }
.access-panel { padding: clamp(28px, 5vw, 56px); border: 1px solid var(--line); border-radius: 4px 28px 4px 28px; background: var(--panel); }
.access-panel p { color: var(--muted); }
.access-panel ul { padding-left: 1.15em; color: #bfd0d3; }
.warning { border-color: rgba(255,129,83,.3); background: linear-gradient(145deg, rgba(53,29,21,.84), rgba(13,17,19,.88)); }
.final { text-align: center; padding-top: 80px; }
.final img { width: 100px; height: 100px; margin: 0 auto 28px; border-radius: 24px; box-shadow: 0 0 50px rgba(56,244,255,.18); }
.final p { max-width: 610px; margin: 20px auto 32px; color: var(--muted); }
.final .actions { justify-content: center; }

.doc-hero { padding: 190px 20px 72px; border-bottom: 1px solid var(--line); background: radial-gradient(circle at 80% 5%, rgba(255,129,83,.15), transparent 36%); }
.doc-hero .section-inner { display: grid; grid-template-columns: 1fr minmax(250px, 480px); align-items: end; gap: 40px; }
.doc-hero p { margin: 0; color: var(--muted); }
.doc-layout { display: grid; grid-template-columns: 240px minmax(0, 760px); justify-content: space-between; gap: 70px; }
.doc-nav { position: sticky; top: 110px; align-self: start; display: grid; gap: 8px; }
.doc-nav > span { display: grid; gap: 8px; }
.doc-nav a { padding: 9px 12px; border-left: 1px solid var(--line); color: var(--muted); text-decoration: none; font-size: .88rem; }
.doc-nav a:hover { color: white; border-color: var(--cyan); }
.doc-content section { scroll-margin-top: 110px; padding: 0 0 42px; margin-bottom: 42px; border-bottom: 1px solid rgba(112,224,232,.12); }
.doc-content h2 { margin-bottom: 18px; font-size: clamp(1.7rem, 3vw, 2.6rem); }
.doc-content p, .doc-content li, .doc-content address { color: #b8c6c9; }
.doc-content address { font-style: normal; }
.legal-note { padding: 20px 22px; border-left: 2px solid var(--cyan); background: rgba(56,244,255,.055); }

.site-footer { padding: 55px max(20px, env(safe-area-inset-right)) max(38px, env(safe-area-inset-bottom)) max(20px, env(safe-area-inset-left)); border-top: 1px solid var(--line); background: #04080a; }
.footer-inner { width: min(var(--max), 100%); margin: 0 auto; display: flex; justify-content: space-between; gap: 50px; }
.footer-brand p { max-width: 480px; color: var(--muted); font-size: .88rem; }
.footer-links { display: flex; flex-wrap: wrap; align-items: start; justify-content: end; gap: 12px 24px; }
.footer-links a { color: var(--muted); font-size: .86rem; }
.copyright { margin-top: 18px; color: #6f858a; font-size: .78rem; }

@media (max-width: 820px) {
  body { font-size: 16px; }
  .nav-toggle { display: block; }
  .main-nav { position: absolute; top: calc(100% - 2px); left: 18px; right: 18px; display: none; align-items: stretch; padding: 16px; border: 1px solid var(--line); border-radius: 4px 18px 4px 18px; background: rgba(5,12,15,.98); box-shadow: 0 18px 50px #000; }
  .main-nav[data-open="true"] { display: grid; }
  .main-nav a { padding: 10px 8px; }
  .lang-switch { justify-self: start; }
  .hero-grid { grid-template-columns: 1fr; padding-bottom: 52px; }
  .spec { display: none; }
  .section { padding-top: 76px; padding-bottom: 76px; }
  .section-head, .doc-hero .section-inner { grid-template-columns: 1fr; gap: 20px; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature { min-height: 220px; }
  .cinema-copy { position: relative; display: block; background: #081116; }
  .cinema-copy p { margin-top: 16px; }
  .access-grid { grid-template-columns: 1fr; }
  .doc-layout { grid-template-columns: 1fr; gap: 38px; }
  .doc-nav { position: static; grid-template-columns: repeat(2, 1fr); }
  .footer-inner { display: grid; }
  .footer-links { justify-content: start; }
}

@media (max-width: 520px) {
  .brand span { display: none; }
  .hero { min-height: 760px; }
  .hero::before { background-position: 57% center; }
  h1 { font-size: clamp(2.8rem, 15vw, 4.5rem); }
  .hero-logo { width: 100%; }
  .actions .button { width: 100%; }
  .doc-nav { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
}