/* Landing Page. Schrift wie im Aqyana-Portal: Systemschrift (system-ui) - keine Schriftdatei, daher null Ladezeit und kein Flackern. */
:root {
  --bg: #226778; --text: #fff; --muted: rgba(255, 255, 255, .78); --line: rgba(255, 255, 255, .22); --accent: #5b9bff;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color-scheme: dark;
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; background: var(--bg); }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.6 var(--font); -webkit-font-smoothing: antialiased; }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

/* ---------- Startseite ---------- */
.hero {
  position: relative; isolation: isolate; overflow: hidden;
  min-height: 100vh; min-height: 100svh;
  display: grid; grid-template-rows: auto 1fr auto;
  background: var(--bg) url("../video/poster-1080.jpg?v=1") center / cover no-repeat;
}
@media (max-width: 900px) { .hero { background-image: url("../video/poster-720.jpg?v=1"); } }
.hero video {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -2;
  opacity: 0; transition: opacity .9s ease;
  pointer-events: none;
}
/* 0.999 statt 1: ein ganz leicht durchsichtiges Video wird von Android-Chrome/Mi-Browser nicht in eine eigene Vollbild-Ebene gehoben (die ignoriert 'cover', Text und Abdunklung). */
.hero.is-playing video { opacity: .999; }
/* Abdunklung, damit weisser Text auf jedem Videobild lesbar bleibt */
.hero::after {
  content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background:
    linear-gradient(90deg, rgba(5, 11, 22, .55) 0%, rgba(5, 11, 22, .15) 60%, rgba(5, 11, 22, 0) 100%),
    linear-gradient(180deg, rgba(5, 11, 22, .25) 0%, rgba(5, 11, 22, 0) 35%, rgba(5, 11, 22, .7) 100%);
}
.brandbar { padding: 26px max(clamp(24px, 6vw, 112px), env(safe-area-inset-right)) 0 max(clamp(24px, 6vw, 112px), env(safe-area-inset-left)); }
.brandbar img, .doc-logo img { display: block; height: 34px; width: auto; }
.brandbar a { display: inline-block; }
.content {
  align-self: center; width: 100%; max-width: 64rem;
  padding: clamp(24px, 6vw, 112px); padding-top: clamp(24px, 6vh, 72px);
  padding-left: max(clamp(24px, 6vw, 112px), env(safe-area-inset-left));
}
h1 {
  margin: 0 0 1.2rem; font-size: clamp(2.3rem, 6.6vw, 5.6rem); font-weight: 700; line-height: 1.04; letter-spacing: -.025em;
  text-wrap: balance; text-shadow: 0 2px 30px rgba(0, 0, 0, .35);
}
.lead { margin: 0; max-width: 34rem; font-size: clamp(1.05rem, 1.6vw, 1.3rem); color: var(--muted); text-shadow: 0 1px 14px rgba(0, 0, 0, .4); }

.foot {
  display: flex; align-items: center; gap: 1.2rem 2rem; flex-wrap: wrap;
  padding: 18px max(clamp(20px, 4vw, 48px), env(safe-area-inset-right)) calc(18px + env(safe-area-inset-bottom)) max(clamp(20px, 4vw, 48px), env(safe-area-inset-left));
  font-size: .85rem; color: var(--muted);
}
.copy { margin: 0 auto 0 0; }
.foot nav { display: flex; gap: 1.6rem; }
.foot a { text-decoration: none; padding: 10px 0; border-bottom: 1px solid transparent; transition: border-color .2s, color .2s; }
.foot a:hover, .foot a:focus-visible { color: #fff; border-bottom-color: var(--line); }

.toggle {
  display: inline-grid; place-items: center; width: 44px; height: 44px; padding: 0; cursor: pointer;
  color: #fff; background: rgba(255, 255, 255, .1); border: 1px solid var(--line); border-radius: 50%;
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px); transition: background .2s;
}
.toggle:hover { background: rgba(255, 255, 255, .2); }
.toggle svg { width: 20px; height: 20px; fill: currentColor; }
.toggle .i-play { display: none; }
.toggle[aria-pressed="true"] .i-play { display: block; }
.toggle[aria-pressed="true"] .i-pause { display: none; }
.toggle[hidden] { display: none; }

/* Querformat auf dem Handy: wenig Hoehe */
@media (max-height: 520px) { .brandbar { padding-top: 14px; } .brandbar img { height: 28px; } .content { padding-top: 12px; padding-bottom: 8px; } h1 { font-size: clamp(1.8rem, 5vw, 3rem); } }
@media (max-width: 560px) { .copy { flex-basis: 100%; order: 3; margin: 0; } .foot nav { margin-right: auto; } }

/* ---------- Rechtsseiten ---------- */
.doc { min-height: 100vh; min-height: 100svh; display: flex; flex-direction: column; }
.doc-top { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 22px max(clamp(20px, 5vw, 64px), env(safe-area-inset-right)) 0 max(clamp(20px, 5vw, 64px), env(safe-area-inset-left)); }
.back { display: inline-flex; align-items: center; gap: .5rem; padding: 10px 0; text-decoration: none; font-size: .95rem; color: var(--muted); }
.back:hover, .back:focus-visible { color: #fff; }
.doc-main { flex: 1; width: 100%; max-width: 48rem; padding: clamp(24px, 5vw, 56px) max(clamp(20px, 5vw, 64px), env(safe-area-inset-right)) 56px max(clamp(20px, 5vw, 64px), env(safe-area-inset-left)); margin: 0 auto; }
.doc h1 { font-size: clamp(1.9rem, 4.5vw, 2.8rem); margin-bottom: .4em; text-shadow: none; }
.doc h2 { font-size: 1.15rem; margin: 2em 0 .5em; letter-spacing: -.005em; }
.doc p, .doc li { color: rgba(255, 255, 255, .86); }
.doc ul { padding-left: 1.2rem; }
.doc a { color: var(--accent); }
.doc .meta { color: var(--muted); font-size: .9rem; }
.doc .todo { background: rgba(242, 184, 75, .18); color: #ffd98a; padding: 0 .3em; border-radius: 4px; }
.doc-foot { border-top: 1px solid var(--line); padding: 18px max(clamp(20px, 5vw, 64px), env(safe-area-inset-right)) calc(18px + env(safe-area-inset-bottom)) max(clamp(20px, 5vw, 64px), env(safe-area-inset-left)); display: flex; flex-wrap: wrap; gap: .4rem 2rem; font-size: .85rem; color: var(--muted); }
.doc-foot a { color: var(--muted); text-decoration: none; padding: 8px 0; }
.doc-foot a:hover, .doc-foot a:focus-visible { color: #fff; }

@media (prefers-reduced-motion: reduce) { .hero video, .toggle, .foot a { transition: none; } }