:root {
  --blau: #4F6DF5;
  --blau-dunkel: #3B54C4;
  --gruen: #2FB380;
  --rot: #EF5B5B;
  --gelb: #F0B93F;
  --lila: #A06BD6;
  --tuerkis: #3FB0C9;
  --text: #1F2733;
  --text-hell: #5B6472;
  --hintergrund: #FFFFFF;
  --hintergrund-alt: #F5F7FC;
  --rand: #E3E7F0;
  --karte-schatten: 0 2px 6px rgba(31, 39, 51, 0.05);
  --karte-schatten-hover: 0 16px 32px rgba(79, 109, 245, 0.14);
}

@media (prefers-color-scheme: dark) {
  :root {
    --text: #F0F2F7;
    --text-hell: #A9B1C2;
    --hintergrund: #14161C;
    --hintergrund-alt: #1B1E27;
    --rand: #2A2E3A;
    --karte-schatten: 0 2px 6px rgba(0, 0, 0, 0.25);
    --karte-schatten-hover: 0 16px 32px rgba(79, 109, 245, 0.22);
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: var(--hintergrund);
  line-height: 1.6;
  overflow-x: hidden;
}

a { color: var(--blau); }

img { max-width: 100%; }

.wrap {
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
}

/* ---------- Kopf ---------- */

header.kopf {
  padding: 18px 0;
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--hintergrund) 82%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--rand);
}

header.kopf .wrap {
  display: flex;
  align-items: center;
  gap: 12px;
}

header.kopf img {
  width: 36px;
  height: 36px;
  border-radius: 9px;
}

header.kopf strong {
  font-size: 1.05rem;
}

nav.kopf-nav {
  margin-left: auto;
  display: flex;
  gap: 24px;
}

nav.kopf-nav a {
  color: var(--text-hell);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  transition: color 0.15s ease;
}

nav.kopf-nav a:hover { color: var(--blau); }

/* ---------- Hero mit Verlaufs-„Blobs" (Anlehnung ans iPadOS-Wallpaper-Motiv) ---------- */

.hero {
  position: relative;
  padding: 96px 0 64px;
  text-align: center;
  isolation: isolate;
}

.hero::before,
.hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.35;
}

.hero::before {
  width: 480px;
  height: 480px;
  background: radial-gradient(circle at 30% 30%, var(--blau), transparent 70%);
  top: -220px;
  left: 50%;
  transform: translateX(-70%);
}

.hero::after {
  width: 420px;
  height: 420px;
  background: radial-gradient(circle at 70% 70%, var(--tuerkis), transparent 70%);
  top: -120px;
  left: 50%;
  transform: translateX(10%);
}

@media (prefers-color-scheme: dark) {
  .hero::before, .hero::after { opacity: 0.22; }
}

.hero-inhalt {
  animation: einblenden 0.7s ease both;
}

@keyframes einblenden {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero img.icon-groß {
  width: 108px;
  height: 108px;
  border-radius: 24px;
  box-shadow: 0 16px 40px rgba(79, 109, 245, 0.3);
  margin-bottom: 28px;
}

.hero h1 {
  font-size: clamp(2rem, 4.2vw, 2.7rem);
  margin: 0 0 18px;
  letter-spacing: -0.02em;
}

.hero p.untertitel {
  font-size: 1.2rem;
  color: var(--text-hell);
  max-width: 580px;
  margin: 0 auto 36px;
}

.badge {
  display: inline-block;
  padding: 14px 30px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--blau), var(--blau-dunkel));
  color: #fff;
  font-weight: 600;
  text-decoration: none;
  font-size: 1rem;
  box-shadow: 0 10px 24px rgba(79, 109, 245, 0.35);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.badge:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 28px rgba(79, 109, 245, 0.42);
}

/* ---------- Screenshot-Vitrine ---------- */

.vitrine {
  padding: 24px 0 72px;
  overflow: visible;
}

.geraete-reihe {
  display: flex;
  justify-content: center;
  align-items: flex-end;
  gap: 22px;
  flex-wrap: wrap;
  padding: 24px 0 8px;
}

.geraet {
  width: 240px;
  aspect-ratio: 4 / 3;
  border-radius: 20px;
  background: #0d0f14;
  padding: 10px;
  box-shadow: var(--karte-schatten-hover);
  transition: transform 0.25s ease;
}

.geraet:nth-child(1) { transform: rotate(-4deg) translateY(10px); }
.geraet:nth-child(2) { transform: translateY(-8px); width: 270px; z-index: 1; }
.geraet:nth-child(3) { transform: rotate(4deg) translateY(10px); }

.geraet:hover { transform: translateY(-4px) scale(1.02); }

.geraet-bildschirm {
  width: 100%;
  height: 100%;
  border-radius: 12px;
  overflow: hidden;
  background: var(--hintergrund-alt);
  display: flex;
  align-items: center;
  justify-content: center;
}

.geraet-bildschirm img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.geraet-platzhalter {
  color: var(--text-hell);
  font-size: 0.8rem;
  text-align: center;
  padding: 12px;
  border: 1px dashed var(--rand);
  border-radius: 10px;
  margin: 10px;
}

/* ---------- Ablauf-Schritte ---------- */

.schritte {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 28px;
  max-width: 860px;
  margin: 0 auto;
}

.schritt {
  text-align: center;
}

.schritt .nummer {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--blau);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  margin: 0 auto 14px;
}

.schritt h3 {
  margin: 0 0 6px;
  font-size: 1.02rem;
}

.schritt p {
  margin: 0;
  color: var(--text-hell);
  font-size: 0.92rem;
}

/* ---------- Funktionen ---------- */

section {
  padding: 64px 0;
}

section.alt {
  background: var(--hintergrund-alt);
  border-top: 1px solid var(--rand);
  border-bottom: 1px solid var(--rand);
}

section h2 {
  font-size: 1.8rem;
  text-align: center;
  margin: 0 0 48px;
  letter-spacing: -0.01em;
}

.funktionen-raster {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 20px;
}

.funktion {
  padding: 26px;
  border-radius: 18px;
  background: var(--hintergrund);
  border: 1px solid var(--rand);
  box-shadow: var(--karte-schatten);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.funktion:hover {
  transform: translateY(-4px);
  box-shadow: var(--karte-schatten-hover);
}

.funktion .symbol {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 16px;
  background: var(--akzent, var(--blau));
  background: color-mix(in srgb, var(--akzent, var(--blau)) 16%, transparent);
}

.funktion h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}

.funktion p {
  margin: 0;
  color: var(--text-hell);
  font-size: 0.95rem;
}

/* ---------- Datenschutz-Kurzhinweis ---------- */

.datenschutz-kurz {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}

.datenschutz-kurz ul {
  text-align: left;
  display: inline-block;
  color: var(--text-hell);
  list-style: none;
  padding: 0;
}

.datenschutz-kurz ul li {
  padding: 6px 0 6px 28px;
  position: relative;
}

.datenschutz-kurz ul li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--gruen);
  font-weight: 700;
}

/* ---------- Fuß ---------- */

footer.fuß {
  padding: 36px 0 52px;
  text-align: center;
  color: var(--text-hell);
  font-size: 0.9rem;
}

footer.fuß nav {
  margin-bottom: 12px;
}

footer.fuß nav a {
  color: var(--text-hell);
  margin: 0 10px;
  text-decoration: none;
}

footer.fuß nav a:hover { color: var(--blau); }

/* ---------- Rechtstexte (Impressum/Datenschutz) ---------- */

.rechtstext {
  padding: 48px 0 64px;
}

.rechtstext h1 {
  font-size: 1.8rem;
}

.rechtstext h2 {
  font-size: 1.2rem;
  margin-top: 2.2em;
}

.rechtstext .stand {
  color: var(--text-hell);
  font-size: 0.9rem;
  margin-bottom: 2em;
}

.zurueck {
  display: inline-block;
  margin-bottom: 24px;
  text-decoration: none;
  font-size: 0.95rem;
}

@media (prefers-reduced-motion: reduce) {
  .hero-inhalt { animation: none; }
  .funktion, .badge, .geraet { transition: none; }
}