/* mind3D Website – im Stil der App: Weltraum-Hintergrund, Cyan-Akzent,
   Karten mit leuchtendem Rand wie die Knoten der Mindmap. */

:root {
  --bg: #000011;
  --card: #0d0d1a;
  --card-2: #0a0f1f;
  --line: #1a3a5a;
  --line-soft: #16203a;
  --text: #e8e8f0;
  --muted: #9aa5b8;
  --dim: #6c7690;
  --accent: #00d4ff;
  --accent-rgb: 0, 212, 255;
  --accent-bright: #33ddff;
  --pink: #ff4fd8;
  --on-accent: #001018;
  --radius: 14px;
  --max: 1080px;
  --font: system-ui, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: Consolas, "Cascadia Mono", "Courier New", monospace;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 var(--font);
  -webkit-text-size-adjust: 100%;
}

#sterne {
  position: fixed; inset: 0; width: 100%; height: 100%;
  z-index: 0; pointer-events: none;
}
.seite { position: relative; z-index: 1; }

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-bright); text-decoration: underline; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }

img { max-width: 100%; height: auto; display: block; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 16px; }

/* ── Kopfzeile ───────────────────────────────────────────── */
.kopf {
  position: sticky; top: 0; z-index: 10;
  background: rgba(0, 0, 17, 0.82);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line-soft);
}
.kopf .wrap { display: flex; align-items: center; gap: 16px; min-height: 60px; }
.marke { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 700; letter-spacing: 0.06em; font-size: 19px; }
.marke:hover { text-decoration: none; color: var(--text); }
.marke img { width: 34px; height: 34px; filter: drop-shadow(0 0 10px rgba(var(--accent-rgb), 0.45)); }
.nav { margin-left: auto; display: flex; gap: 4px; align-items: center; }
.nav a { color: var(--muted); padding: 8px 12px; border-radius: 10px; font-size: 15px; }
.nav a:hover { color: var(--text); background: rgba(var(--accent-rgb), 0.08); text-decoration: none; }
.nav a[aria-current="page"] { color: var(--accent); background: rgba(var(--accent-rgb), 0.1); }
.nav .knopf { margin-left: 6px; }
.nav .sprache { margin-left: 6px; border: 1px solid var(--line); font-size: 13px; font-weight: 700; letter-spacing: 0.06em; padding: 7px 10px; }
.nav .sprache:hover { color: var(--accent); border-color: var(--accent); }
.menue-knopf {
  display: none; margin-left: auto;
  background: none; border: 1px solid var(--line); color: var(--text);
  border-radius: 10px; width: 44px; height: 40px; font-size: 20px; cursor: pointer;
}
@media (max-width: 760px) {
  .menue-knopf { display: block; }
  .nav {
    display: none; position: absolute; top: 60px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 2px;
    background: rgba(0, 0, 17, 0.97); border-bottom: 1px solid var(--line-soft); padding: 8px 16px 16px;
  }
  .nav.offen { display: flex; }
  .nav a { padding: 12px; font-size: 16px; }
  .nav .knopf { margin: 8px 0 0; text-align: center; }
  .nav .sprache { margin: 8px 0 0; text-align: center; }
}

/* ── Knöpfe ──────────────────────────────────────────────── */
.knopf {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  background: var(--accent); color: var(--on-accent);
  font-weight: 700; padding: 12px 22px; border-radius: 12px; border: 1px solid var(--accent);
  box-shadow: 0 0 24px rgba(var(--accent-rgb), 0.28);
}
.knopf:hover { background: var(--accent-bright); color: var(--on-accent); text-decoration: none; }
.knopf.zweit { background: transparent; color: var(--accent); box-shadow: none; }
.knopf.zweit:hover { background: rgba(var(--accent-rgb), 0.1); color: var(--accent-bright); }
.knopf[aria-disabled="true"] { opacity: 0.55; pointer-events: none; box-shadow: none; }
.nav .knopf { padding: 8px 16px; font-size: 15px; color: var(--on-accent); }
.nav .knopf:hover { color: var(--on-accent); background: var(--accent-bright); }

/* ── Abschnitte ──────────────────────────────────────────── */
section { padding: 64px 0; }
section.eng { padding: 40px 0; }
h1, h2, h3 { line-height: 1.2; margin: 0 0 12px; }
h1 { font-size: clamp(32px, 6vw, 54px); letter-spacing: -0.01em; }
h2 { font-size: clamp(26px, 4vw, 36px); }
h3 { font-size: 20px; }
p { margin: 0 0 14px; }
.leise { color: var(--muted); }
.klein { font-size: 15px; }
.zentriert { text-align: center; }
.einleitung { font-size: 19px; color: var(--muted); max-width: 680px; }
.zentriert .einleitung { margin-left: auto; margin-right: auto; }
.akzent { color: var(--accent); }
.marke-text { color: var(--text); font-weight: 700; letter-spacing: 0.04em; }
.etikett {
  display: inline-block; font-size: 13px; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 10px;
}

/* ── Startbereich ────────────────────────────────────────── */
.held { padding: 72px 0 56px; }
.held .wrap { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 40px; align-items: center; }
.held .logo { width: 104px; height: 104px; margin-bottom: 18px; filter: drop-shadow(0 0 22px rgba(var(--accent-rgb), 0.5)); }
.held .knoepfe { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 24px; }
.held .bild { position: relative; }
.held .bild .desktop { border-radius: 12px; border: 1px solid var(--line); box-shadow: 0 0 40px rgba(var(--accent-rgb), 0.18); }
.held .bild .handy {
  position: absolute; width: 30%; right: -12px; bottom: -28px;
  border-radius: 18px; border: 2px solid var(--line); box-shadow: 0 10px 40px rgba(0, 0, 0, 0.7);
}
@media (max-width: 860px) {
  .held { padding-top: 40px; }
  .held .wrap { grid-template-columns: 1fr; }
  .held .bild { margin: 8px 8px 32px 0; }
}

/* ── Karten (wie Knoten) ─────────────────────────────────── */
.raster { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.raster.zwei { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.karte {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px; position: relative;
}
.karte.leuchtet { border-color: rgba(var(--accent-rgb), 0.55); box-shadow: 0 0 22px rgba(var(--accent-rgb), 0.12) inset; }
.karte h3 { display: flex; align-items: center; gap: 10px; }
.karte .symbol {
  font-size: 22px; width: 42px; height: 42px; flex: none;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 10px; background: rgba(var(--accent-rgb), 0.1); border: 1px solid rgba(var(--accent-rgb), 0.25);
}
.karte p:last-child, .karte ul:last-child { margin-bottom: 0; }
.karte ul { margin: 0 0 12px; padding-left: 20px; }
.karte li { margin-bottom: 4px; }

/* Knoten-Optik: Kopf mit Nummer wie in der App */
.knoten { padding: 0; overflow: hidden; }
.knoten .kopfleiste {
  display: flex; align-items: center; gap: 14px; padding: 12px 16px;
  border-bottom: 1px solid rgba(var(--accent-rgb), 0.55);
}
.knoten .nummer { font-family: var(--mono); font-weight: 700; color: var(--accent); font-size: 18px; }
.knoten .kopfleiste h3 { margin: 0; font-size: 18px; padding-left: 14px; border-left: 1px solid rgba(var(--accent-rgb), 0.55); }
.knoten .inhalt { padding: 16px; }

/* ── Bild + Text nebeneinander ───────────────────────────── */
.paar { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.paar.umgekehrt > :first-child { order: 2; }
.paar img { border-radius: 12px; border: 1px solid var(--line); }
.paar img.hoch { max-width: 300px; margin: 0 auto; border-radius: 18px; }
@media (max-width: 860px) {
  .paar { grid-template-columns: 1fr; gap: 24px; }
  .paar.umgekehrt > :first-child { order: 0; }
}

/* ── Schritte ────────────────────────────────────────────── */
.schritte { counter-reset: s; display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.schritt { counter-increment: s; }
.schritt::before {
  content: counter(s); display: inline-flex; width: 36px; height: 36px; align-items: center; justify-content: center;
  border-radius: 50%; background: var(--accent); color: var(--on-accent); font-weight: 800; margin-bottom: 10px;
}

/* ── Häkchen-Liste ───────────────────────────────────────── */
.haken { list-style: none; padding: 0; margin: 0 0 14px; }
.haken li { padding-left: 30px; position: relative; margin-bottom: 8px; }
.haken li::before { content: "✓"; position: absolute; left: 4px; color: var(--accent); font-weight: 800; }
.geplant li::before { content: "○"; color: var(--dim); }

/* ── Hinweis-Kasten ──────────────────────────────────────── */
.hinweis {
  border-left: 3px solid var(--accent); background: rgba(var(--accent-rgb), 0.06);
  padding: 14px 18px; border-radius: 0 10px 10px 0; color: var(--muted);
}
.hinweis strong { color: var(--text); }

/* ── Download ────────────────────────────────────────────── */
.plattform { display: flex; flex-direction: column; gap: 10px; }
.plattform .symbol { font-size: 30px; width: 56px; height: 56px; }
.plattform .knopf { align-self: flex-start; margin-top: 6px; }
.status { font-size: 14px; color: var(--muted); }
.status.bald::before { content: "● "; color: #ffb547; }

/* ── Tabelle ─────────────────────────────────────────────── */
.tabelle-huelle { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 15px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line-soft); vertical-align: top; }
th { color: var(--accent); font-weight: 600; }

/* ── Häufige Fragen ──────────────────────────────────────── */
details { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 0 18px; margin-bottom: 10px; }
summary { cursor: pointer; padding: 16px 0; font-weight: 600; list-style: none; position: relative; padding-right: 28px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; right: 0; color: var(--accent); font-size: 22px; line-height: 1; top: 14px; }
details[open] summary::after { content: "–"; }
details > :not(summary) { color: var(--muted); }
details p:last-child { padding-bottom: 6px; }

/* ── Fließtext-Seiten ────────────────────────────────────── */
.text-seite { max-width: 760px; }
.text-seite h2 { font-size: 22px; margin-top: 32px; color: var(--accent); }
.text-seite .stand { color: var(--dim); font-size: 14px; }
.todo { background: #3a2a00; color: #ffd27a; padding: 2px 6px; border-radius: 4px; }

/* ── Fußzeile ────────────────────────────────────────────── */
.fuss { border-top: 1px solid var(--line-soft); padding: 32px 0 40px; color: var(--dim); font-size: 15px; margin-top: 24px; }
.fuss .wrap { display: flex; flex-wrap: wrap; gap: 12px 28px; align-items: center; }
.fuss nav { display: flex; flex-wrap: wrap; gap: 6px 20px; }
.fuss a { color: var(--muted); }
.fuss .rechts { margin-left: auto; }
@media (max-width: 600px) { .fuss .rechts { margin-left: 0; } }

/* ── Abstände (keine Inline-Styles wegen CSP) ────────────── */
.abstand-16 { margin-top: 16px; }
.abstand-28 { margin-top: 28px; }
.abstand-32 { margin-top: 32px; }
.aufruf { max-width: 720px; margin: 0 auto; padding: 36px 24px; }

/* ── Entwickler-Doku (aus PLUGINS.md) ────────────────────── */
.doku { max-width: 860px; }
.doku h2 { font-size: 24px; margin-top: 40px; color: var(--accent); }
.doku h3 { font-size: 18px; margin-top: 26px; }
.doku p, .doku li { color: var(--muted); }
.doku strong { color: var(--text); }
.doku ul { padding-left: 22px; margin: 0 0 14px; }
.doku table { margin-bottom: 16px; }
.doku td { color: var(--muted); }
code { font-family: var(--mono); font-size: 0.9em; background: rgba(var(--accent-rgb), 0.08); color: var(--accent-bright); padding: 1px 5px; border-radius: 5px; }
pre { background: #070712; border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; overflow-x: auto; margin: 0 0 16px; }
pre code { background: none; padding: 0; color: #cfe8ff; font-size: 14px; line-height: 1.55; }
.team { max-width: 640px; margin-left: auto; margin-right: auto; text-align: left; }