:root {
  --bg: #05070c;
  --panel: #0a0e18;
  --ink: #e9eef5;
  --text: #c3cfde;
  --soft: #8a97ab;
  --rule: rgba(159, 212, 255, .16);
  --volt: #9fd4ff;
  --hot: #ffc24a;
  --display: Bahnschrift, "DIN Alternate", "Segoe UI", system-ui, sans-serif;
  --maxw: 1100px;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 70px; }
body { margin: 0; background: var(--bg); color: var(--text); font: 17px/1.7 "Segoe UI", system-ui, -apple-system, Roboto, sans-serif; overflow-x: hidden; }
h1, h2, h3, p, ol, ul { margin: 0; padding: 0; }
ol, ul { list-style: none; }
a { color: inherit; }
strong { color: var(--ink); font-weight: 600; }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 32px; }

/* Kopfzeile */
.site-header {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between; padding: 18px 32px;
  background: rgba(5, 7, 12, .7); backdrop-filter: blur(12px); border-bottom: 1px solid var(--rule);
  font: 500 13px/1 var(--display); letter-spacing: .2em; text-transform: uppercase; color: var(--soft);
}
.site-header a { text-decoration: none; transition: color .2s; }
.site-header a:hover { color: var(--volt); }
.brand { color: var(--ink); display: flex; align-items: center; gap: 10px; }
.brand-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--hot); box-shadow: 0 0 12px var(--hot); }
.site-header nav { display: flex; gap: 30px; }

/* Hero mit Gewitter */
.hero { position: relative; height: calc(100vh - 50px); min-height: 600px; overflow: hidden;
  background: radial-gradient(120% 70% at 78% 0%, #131c3a 0%, #0a0f20 38%, var(--bg) 72%); }
#bg { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.hero::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 22%; background: linear-gradient(transparent, var(--bg)); pointer-events: none; }
.intro { position: absolute; z-index: 2; left: 32px; right: 32px; top: 10vh; pointer-events: none; }
.kicker, .eyebrow { font: 500 13px/1.3 var(--display); letter-spacing: .32em; text-transform: uppercase; color: var(--hot); }
.kicker { margin-bottom: 20px; }
.mark { font-family: var(--display); font-size: clamp(3.4rem, 13.5vw, 12rem); line-height: .9; letter-spacing: .015em; text-transform: uppercase; font-weight: 300; color: #c9d6e6; }
.mark b { font-weight: 700; color: #fff; text-shadow: 0 0 28px rgba(159, 212, 255, .55), 0 0 90px rgba(90, 150, 255, .35); }
.claim { margin-top: 26px; max-width: 31em; font-size: clamp(1.05rem, 1.7vw, 1.3rem); text-shadow: 0 1px 12px var(--bg); }
.claim strong { display: block; color: #fff; }

/* Zahlen */
.facts { display: grid; grid-template-columns: repeat(3, 1fr); border-block: 1px solid var(--rule); }
.facts li { padding: 34px 0 30px; display: flex; align-items: baseline; gap: 16px; }
.facts li + li { border-left: 1px solid var(--rule); padding-left: 32px; }
.facts strong { font: 300 clamp(2.6rem, 6vw, 4.2rem)/1 var(--display); color: #fff; font-variant-numeric: tabular-nums; text-shadow: 0 0 26px rgba(159, 212, 255, .4); }
.facts li > span { color: var(--soft); font-size: .95rem; line-height: 1.4; }

/* Abschnitte */
.section { padding: 110px 0; }
.section-alt { background: var(--panel); border-block: 1px solid var(--rule); }
.eyebrow { margin-bottom: 18px; }
h2 { font: 300 clamp(2rem, 5vw, 3.6rem)/1.05 var(--display); letter-spacing: .01em; text-transform: uppercase; color: var(--ink); margin-bottom: 22px; }
h2 b { font-weight: 700; color: #fff; }
.section-lead { max-width: 38em; margin-bottom: 50px; font-size: 1.1rem; }

.statement { font: 300 clamp(1.5rem, 3.4vw, 2.6rem)/1.3 var(--display); color: var(--ink); max-width: 22em; }
.statement b { font-weight: 600; color: #fff; text-shadow: 0 0 24px rgba(159, 212, 255, .45); }
.statement + p { margin-top: 28px; max-width: 38em; }

/* Schwerpunkte */
.list li { position: relative; display: grid; grid-template-columns: 70px 1fr 1.3fr; gap: 26px; align-items: baseline; padding: 26px 0; border-top: 1px solid var(--rule); cursor: pointer; }
.list li:last-child { border-bottom: 1px solid var(--rule); }
.list li::before { content: ""; position: absolute; left: 0; top: -1px; height: 1px; width: 100%; transform: scaleX(0); transform-origin: left;
  background: linear-gradient(90deg, var(--hot), #fff 30%, var(--volt) 60%, transparent); box-shadow: 0 0 14px var(--volt); transition: transform .5s cubic-bezier(.2, .7, .2, 1); }
.list li:hover::before, .list li:focus-visible::before { transform: scaleX(1); }
.list li:focus-visible { outline: 2px solid var(--volt); outline-offset: -2px; }
.list .no { font: 500 14px/1 var(--display); letter-spacing: .2em; color: var(--soft); transition: color .3s; }
.list h3 { font: 400 clamp(1.3rem, 2.4vw, 1.8rem)/1.15 var(--display); text-transform: uppercase; letter-spacing: .03em; color: var(--ink); transition: color .3s, text-shadow .3s; }
.list p { color: var(--soft); transition: color .3s; }
.list li:hover .no, .list li:focus-visible .no { color: var(--hot); }
.list li:hover h3, .list li:focus-visible h3 { color: #fff; text-shadow: 0 0 22px rgba(159, 212, 255, .6); }
.list li:hover p, .list li:focus-visible p { color: var(--text); }

/* Kreislauf */
.narrow-text { max-width: 800px; }
.flow { display: flex; gap: 0; margin: 44px 0 40px; border: 1px solid var(--rule); }
.flow li { position: relative; flex: 1; padding: 22px 24px; }
.flow li + li { border-left: 1px solid var(--rule); }
.flow li + li::before { content: "→"; position: absolute; left: -11px; top: 50%; transform: translateY(-50%); width: 21px; text-align: center; color: var(--hot); background: var(--panel); font-weight: 700; }
.flow strong { display: block; font: 600 1.25rem/1.2 var(--display); text-transform: uppercase; letter-spacing: .06em; color: #fff; }
.flow span { color: var(--soft); font-size: .92rem; }
.ticks li { position: relative; padding: 0 0 16px 32px; }
.ticks li::before { content: ""; position: absolute; left: 0; top: .8em; width: 18px; height: 1px; background: var(--hot); box-shadow: 0 0 8px var(--hot); }

/* Werdegang */
.path { margin-top: 20px; padding-left: 34px; position: relative; --p: 0; }
.path::before, .path::after { content: ""; position: absolute; left: 7px; top: 8px; bottom: 8px; width: 1px; }
.path::before { background: var(--rule); }
.path::after { width: 2px; left: 6.5px; background: linear-gradient(var(--hot), #fff 35%, var(--volt)); box-shadow: 0 0 14px var(--volt); transform-origin: top; transform: scaleY(var(--p)); }
.step { position: relative; padding: 0 0 48px 26px; }
.step::before { content: ""; position: absolute; left: -33px; top: 7px; width: 13px; height: 13px; border-radius: 50%; background: var(--bg); border: 2px solid var(--soft); transition: border-color .4s, box-shadow .4s, background .4s; }
.step.in::before { border-color: var(--volt); box-shadow: 0 0 14px var(--volt); }
.step-top.in::before { background: #fff; border-color: #fff; box-shadow: 0 0 22px var(--volt), 0 0 50px var(--volt); }
.stage { font: 500 12px/1 var(--display); letter-spacing: .24em; text-transform: uppercase; color: var(--hot); margin-right: 14px; }
.when { font: 500 14px/1 var(--display); letter-spacing: .08em; color: var(--soft); }
.step h3 { font: 400 clamp(1.3rem, 2.6vw, 1.8rem)/1.15 var(--display); text-transform: uppercase; letter-spacing: .03em; color: var(--ink); margin: 10px 0 8px; }
.step-top h3 { color: #fff; font-weight: 600; text-shadow: 0 0 24px rgba(159, 212, 255, .5); }
.step p { max-width: 40em; color: var(--soft); }
.step-top p { color: var(--text); }

/* Kontakt */
.contact { text-align: center; padding: 130px 0; background: radial-gradient(70% 90% at 50% 100%, #131c3a 0%, var(--bg) 70%); border-top: 1px solid var(--rule); }
.contact .section-lead { margin: 0 auto 40px; }
.mail { display: inline-block; font: 300 clamp(1.4rem, 5vw, 3rem)/1.2 var(--display); color: #fff; text-decoration: none; padding-bottom: 6px;
  border-bottom: 1px solid var(--hot); text-shadow: 0 0 26px rgba(159, 212, 255, .5); transition: border-color .3s, text-shadow .3s; overflow-wrap: anywhere; }
.mail:hover { border-color: #fff; text-shadow: 0 0 18px #fff, 0 0 60px var(--volt); }

/* Fußzeile */
.site-footer { padding: 28px 0; border-top: 1px solid var(--rule); color: var(--soft); font-size: .9rem; }
.site-footer .wrap { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
.site-footer .wrap > div { display: flex; gap: 20px; align-items: center; flex-wrap: wrap; }
.site-footer nav { display: flex; gap: 20px; }
.site-footer a:hover { color: var(--volt); }
.motion-toggle { background: none; border: 1px solid var(--rule); color: var(--soft); border-radius: 999px; padding: 4px 14px; font: inherit; font-size: .85rem; cursor: pointer; }
.motion-toggle:hover { color: var(--ink); border-color: var(--volt); }

/* Einblenden beim Scrollen (nur mit JavaScript) */
.js .reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.js .reveal.in { opacity: 1; transform: none; }
.calm.js .reveal { transform: none; }

/* Detailfenster */
.detail { border: 1px solid var(--rule); border-top: 1px solid var(--volt); border-radius: 4px; padding: 0; width: min(680px, calc(100vw - 28px));
  max-height: calc(100vh - 40px); overflow: auto; color: var(--text); background: #080c15;
  box-shadow: 0 0 60px rgba(90, 150, 255, .18), 0 30px 80px rgba(0, 0, 0, .7); scrollbar-color: var(--rule) transparent; }
.detail::backdrop { background: rgba(3, 4, 8, .78); backdrop-filter: blur(6px); }
.detail[open] { animation: pop .28s ease; }
@keyframes pop { from { opacity: 0; transform: translateY(14px); } }
.detail:focus, .detail:focus-visible { outline: none; }
#detail-body { padding: 40px 36px 8px; }
#detail-body h3 { font: 400 clamp(1.5rem, 4vw, 2.1rem)/1.1 var(--display); text-transform: uppercase; letter-spacing: .03em; color: #fff; margin-bottom: 10px; }
#detail-body p { margin-bottom: 1em; }
.d-kicker { font: 500 13px/1 var(--display); letter-spacing: .24em; color: var(--hot); margin-bottom: 14px !important; }
.d-lead { font-size: 1.15rem; color: var(--volt); }
.d-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
.d-tags li { font-size: .82rem; color: var(--soft); border: 1px solid var(--rule); border-radius: 999px; padding: 4px 12px; }
.detail-close { position: absolute; top: 12px; right: 14px; width: 38px; height: 38px; border-radius: 50%; border: 1px solid var(--rule); background: transparent; color: var(--ink); font-size: 1.5rem; line-height: 1; cursor: pointer; }
.detail-close:hover { border-color: var(--volt); color: var(--volt); }
.detail-nav { display: flex; justify-content: space-between; padding: 18px 36px 28px; }
.detail-nav button { background: none; border: 1px solid var(--rule); color: var(--soft); border-radius: 999px; padding: 8px 18px; font: inherit; font-size: .9rem; cursor: pointer; }
.detail-nav button:hover { color: var(--ink); border-color: var(--volt); }
html:has(dialog[open]) { overflow: hidden; }

/* Rechtstexte */
.legal { max-width: 720px; margin: 0 auto; padding: 60px 32px 100px; }
.legal h1 { font: 300 clamp(2rem, 6vw, 3.2rem)/1.1 var(--display); text-transform: uppercase; color: #fff; margin-bottom: .8em; }
.legal h2 { font: 500 1.15rem/1.3 var(--display); letter-spacing: .08em; color: var(--ink); margin: 2em 0 .5em; }
.legal p, .legal ul { margin-bottom: 1em; }
.legal ul { list-style: disc; padding-left: 1.3em; }
.legal a { color: var(--volt); }
.legal .note { background: var(--panel); border: 1px solid var(--rule); border-left: 2px solid var(--hot); padding: 14px 18px; color: var(--soft); }

@media (max-width: 760px) {
  .wrap { padding: 0 20px; }
  .site-header { padding: 16px 20px; }
  .site-header nav:not(.klapp) a:not(.keep) { display: none; }
  /* Startseite: Menü zum Aufklappen statt ausgeblendeter Punkte */
  .site-header .menue-knopf { display: inline-flex; }
  .site-header nav.klapp { display: none; position: absolute; left: 0; right: 0; top: 100%; flex-direction: column; gap: 0; background: #05070c; border-bottom: 1px solid var(--rule); }
  .site-header nav.klapp.offen { display: flex; }
  .site-header nav.klapp a { padding: 16px 20px; border-top: 1px solid var(--rule); font-size: 14px; }
  .intro { left: 20px; right: 20px; top: 8vh; }
  .kicker { letter-spacing: .22em; }
  .section { padding: 80px 0; }
  .facts { grid-template-columns: 1fr; }
  .facts li { padding: 20px 0; }
  .facts li + li { border-left: 0; border-top: 1px solid var(--rule); padding-left: 0; }
  .facts strong { min-width: 2.3em; }
  .list li { grid-template-columns: 44px 1fr; gap: 6px 10px; }
  .list p { grid-column: 2; }
  .flow { flex-direction: column; }
  .flow li + li { border-left: 0; border-top: 1px solid var(--rule); }
  .flow li + li::before { content: "↓"; left: 24px; top: -1px; }
  .legal { padding: 40px 20px 80px; }
  #detail-body { padding: 40px 22px 8px; }
  .detail-nav { padding: 18px 22px 24px; }
}

.tool-link { display: inline-block; margin-top: 10px; padding: 14px 26px; font: 500 1rem/1 var(--display); letter-spacing: .08em; text-transform: uppercase; color: #fff; text-decoration: none; border: 1px solid var(--volt); transition: box-shadow .2s, background .2s; }
.tool-link:hover, .tool-link:focus-visible { background: rgba(159, 212, 255, .1); box-shadow: 0 0 24px rgba(159, 212, 255, .35); }
.tool-kurz { margin-top: 48px; padding-top: 30px; border-top: 1px solid var(--rule); max-width: 760px; }
.tool-kurz h3 { font: 300 clamp(1.4rem, 3vw, 1.9rem)/1.1 var(--display); text-transform: uppercase; color: var(--ink); margin: 0 0 12px; }
.tool-kurz h3 b { font-weight: 700; color: #fff; }
.tool-kurz p { color: var(--text); }

.lora-status { display: inline-flex; align-items: center; gap: 16px; margin: 6px 0 26px; padding: 16px 22px; background: var(--panel); border: 1px solid var(--rule); }
.lora-dot { width: 14px; height: 14px; border-radius: 50%; background: var(--soft); flex: none; }
.lora-status.on .lora-dot { background: #5fe08a; box-shadow: 0 0 14px rgba(95, 224, 138, .7); }
.lora-status.off .lora-dot { background: #ff6b57; box-shadow: 0 0 14px rgba(255, 107, 87, .6); }
.lora-text { display: block; font: 500 1.15rem/1.2 var(--display); letter-spacing: .06em; text-transform: uppercase; color: #fff; }
.lora-sub { display: block; margin-top: 3px; font-size: .88rem; color: var(--soft); }
.lora-facts { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 1px; background: var(--rule); border: 1px solid var(--rule); max-width: 900px; }
.lora-facts li { background: var(--panel); padding: 14px 18px; color: var(--ink); }
.lora-facts span { display: block; font-size: .74rem; letter-spacing: .14em; text-transform: uppercase; color: var(--soft); margin-bottom: 4px; }

/* Flex statt Grid: Bleibt in der letzten Reihe Platz, werden die letzten Kacheln breiter, statt dass leere Zellen in Linienfarbe stehen bleiben */
.tiles { list-style: none; padding: 0; margin-top: 10px; display: flex; flex-wrap: wrap; gap: 1px; background: var(--rule); border: 1px solid var(--rule); max-width: 900px; }
.tiles li { flex: 1 1 260px; background: var(--panel); }
.tiles a { display: block; padding: 22px 24px; text-decoration: none; color: var(--text); }
.tiles b { display: block; font: 500 1.25rem/1.2 var(--display); text-transform: uppercase; letter-spacing: .05em; color: #fff; }
.tiles span { display: block; margin-top: 5px; color: var(--soft); font-size: .92rem; }
.tiles a:hover b, .tiles a:focus-visible b { text-shadow: 0 0 22px rgba(159, 212, 255, .7); }

.tiles li[hidden] { display: none; }
.konto-link { margin-top: 22px; font-size: .9rem; }
.konto-link a { color: var(--soft); text-decoration: none; border-bottom: 1px solid var(--rule); padding-bottom: 2px; }
.konto-link a:hover { color: var(--volt); border-color: var(--volt); }

/* Verweis auf eine geschützte Seite: sichtbar, aber für nicht Angemeldete nicht aufrufbar (siehe konto.js) */
.zu { cursor: default; opacity: .55; }
.tiles .zu { display: block; padding: 22px 24px; color: var(--text); opacity: 1; }
.tiles .zu b, .kb-tiles .zu b { color: var(--soft) !important; }
.kb-tiles li > .zu { display: block; padding: 20px 22px; color: var(--text); opacity: 1; }

/* ---- Barrierefreiheit ---- */
/* Deutlicher, einheitlicher Rahmen für alles, was mit der Tastatur angesteuert wird */
:focus-visible { outline: 2px solid var(--volt); outline-offset: 3px; }
main:focus, #inhalt:focus { outline: none; }
/* Sprunglink: unsichtbar, bis er mit der Tabulatortaste erreicht wird */
.sprung { position: absolute; left: 12px; top: -80px; z-index: 100; padding: 12px 18px; background: #fff; color: #05070c; font: 600 1rem/1 inherit; text-decoration: none; }
.sprung:focus { top: 12px; outline: 2px solid var(--volt); outline-offset: 2px; }
/* Text nur für Vorlesesoftware */
.nur-vorlesen { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
/* Menüknopf der Startseite (nur auf schmalen Bildschirmen sichtbar) */
.menue-knopf { display: none; align-items: center; gap: 8px; padding: 8px 12px; background: none; border: 1px solid var(--rule); color: var(--ink); font: inherit; letter-spacing: inherit; text-transform: inherit; cursor: pointer; }
.menue-knopf:hover, .menue-knopf:focus-visible, .menue-knopf[aria-expanded="true"] { border-color: var(--volt); color: #fff; }
/* Wertetabellen unter den Diagrammen */
.werte { margin: 10px 0 26px; max-width: 900px; }
.werte summary { cursor: pointer; color: var(--soft); font-size: .88rem; padding: 6px 0; }
.werte table { width: 100%; border-collapse: collapse; margin-top: 8px; font-size: .9rem; font-variant-numeric: tabular-nums; }
.werte th, .werte td { padding: 6px 10px; text-align: right; border-top: 1px solid var(--rule); }
.werte th:first-child, .werte td:first-child { text-align: left; }
.werte thead th { color: var(--soft); font-weight: 400; border-top: 0; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition-duration: .01ms !important; animation-duration: .01ms !important; } }