:root {
  --accent: #3c87f7;
  --violet: #7c5cf6;
  --text: #0b1020;
  --muted: #4c5566;
  --glass: rgba(255, 255, 255, 0.55);
  --glass-border: rgba(255, 255, 255, 0.7);
  --pill: rgba(255, 255, 255, 0.5);
  --bg: #eef2fa;
  --backdrop: url("/img/backdrop-light.jpg");
}
@media (prefers-color-scheme: dark) {
  :root {
    --text: #f3f5fa;
    --muted: #aab3c5;
    --glass: rgba(20, 24, 40, 0.55);
    --glass-border: rgba(255, 255, 255, 0.12);
    --pill: rgba(255, 255, 255, 0.08);
    --bg: #090c18;
    --backdrop: url("/img/backdrop-dark.jpg");
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: var(--bg) var(--backdrop) center / cover fixed no-repeat;
  line-height: 1.55;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
[data-lang] { display: none; }
html[lang="de"] [data-lang="de"], html[lang="en"] [data-lang="en"] { display: contents; }
html[lang="de"] section[data-lang="de"], html[lang="en"] section[data-lang="en"],
html[lang="de"] div[data-lang="de"], html[lang="en"] div[data-lang="en"],
html[lang="de"] p[data-lang="de"], html[lang="en"] p[data-lang="en"],
html[lang="de"] li[data-lang="de"], html[lang="en"] li[data-lang="en"] { display: block; }
html[lang="de"] span[data-lang="de"], html[lang="en"] span[data-lang="en"] { display: inline; }

.wrap { max-width: 980px; margin: 0 auto; padding: 0 16px; }
header.top {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 18px 0;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; color: var(--text); }
.brand img { width: 36px; height: 36px; border-radius: 10px; }
nav { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
nav a, .lang button {
  display: inline-block; padding: 8px 12px; border-radius: 12px; color: var(--text);
  background: var(--pill); border: 1px solid var(--glass-border); font-size: 14px; font-weight: 600;
  cursor: pointer; font-family: inherit;
}
nav a:hover { text-decoration: none; background: var(--glass); }
.lang { display: inline-flex; gap: 6px; }
.lang button[aria-pressed="true"] { background: var(--accent); color: #fff; border-color: transparent; }

.glass {
  background: var(--glass); border: 1px solid var(--glass-border); border-radius: 24px;
  backdrop-filter: blur(22px) saturate(1.4); -webkit-backdrop-filter: blur(22px) saturate(1.4);
  padding: 24px;
}
.hero { display: grid; grid-template-columns: 1.1fr 1fr; gap: 24px; align-items: center; margin-top: 12px; }
.hero h1 { font-size: 40px; line-height: 1.1; margin: 0 0 12px; letter-spacing: -0.02em; }
.hero p.lead { font-size: 18px; color: var(--muted); margin: 0 0 20px; }
.hero img { width: 100%; height: auto; }
.cta { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.btn {
  display: inline-flex; align-items: center; gap: 8px; padding: 12px 18px; border-radius: 14px;
  background: var(--accent); color: #fff; font-weight: 700; border: 0; font-size: 15px;
}
.btn:hover { text-decoration: none; filter: brightness(1.08); }
.btn.secondary { background: var(--pill); color: var(--text); border: 1px solid var(--glass-border); }
.note { font-size: 13px; color: var(--muted); }

.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 24px; }
.card h3 { margin: 10px 0 6px; font-size: 17px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
.card .icon {
  width: 44px; height: 44px; border-radius: 14px; display: grid; place-items: center;
  background: rgba(60, 135, 247, 0.16); color: var(--accent); font-size: 22px;
}
.steps { counter-reset: step; display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 14px; }
.steps .card::before {
  counter-increment: step; content: counter(step);
  display: inline-grid; place-items: center; width: 32px; height: 32px; border-radius: 50%;
  background: var(--accent); color: #fff; font-weight: 700; margin-bottom: 8px;
}
h2 { font-size: 26px; margin: 40px 0 8px; letter-spacing: -0.01em; }
.price { display: flex; align-items: baseline; gap: 8px; }
.price strong { font-size: 36px; }
ul.clean { padding-left: 20px; margin: 8px 0; }
ul.clean li { margin: 4px 0; }
.badge { display: inline-block; padding: 4px 10px; border-radius: 999px; background: rgba(60,135,247,0.16); color: var(--accent); font-size: 13px; font-weight: 700; }

article { padding: 28px; }
article h1 { font-size: 32px; margin: 0 0 6px; }
article h2 { font-size: 20px; margin: 28px 0 6px; }
article p, article li { color: var(--text); }
article .meta { color: var(--muted); font-size: 14px; margin-bottom: 18px; }
details { border-top: 1px solid var(--glass-border); padding: 10px 0; }
details summary { cursor: pointer; font-weight: 600; }
details p { color: var(--muted); }
footer { margin: 48px 0 32px; color: var(--muted); font-size: 14px; display: flex; flex-wrap: wrap; gap: 8px 18px; align-items: center; }
footer a { color: var(--muted); }

@media (max-width: 760px) {
  .hero { grid-template-columns: 1fr; }
  .hero h1 { font-size: 32px; }
  .grid, .steps { grid-template-columns: 1fr; }
  header.top { flex-wrap: wrap; }
}