/* Gemeinsames Layout für Info- und Rechtsseiten (FAQ, Support, AGB, Impressum, Datenschutz) */
[hidden] { display: none !important; }
:root {
  --ink: #1d1d1f;
  --muted: #6e6e73;
  --bg-alt: #f5f5f7;
  --accent: #0071e3;
  --accent-hover: #0077ed;
  --ok: #1d8a3e;
  --warn: #c93b3b;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg-alt);
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

nav.doc-nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  background: rgba(255,255,255,.78);
  border-bottom: 1px solid rgba(0,0,0,.08);
}
.doc-nav .nav-inner {
  max-width: 860px; margin: 0 auto; padding: 0 22px;
  height: 52px; display: flex; align-items: center; justify-content: space-between;
}
.doc-nav .nav-brand { font-size: .98rem; font-weight: 650; letter-spacing: -.01em; color: var(--ink); text-decoration: none; }
.doc-nav .nav-back { font-size: .9rem; color: var(--accent); text-decoration: none; }
.doc-nav .nav-back:hover { text-decoration: underline; }

main.doc {
  flex: 1; width: 100%; max-width: 860px; margin: 0 auto; padding: 44px 22px 70px;
}
.doc h1 { font-size: clamp(1.9rem, 4.5vw, 2.7rem); letter-spacing: -.02em; line-height: 1.1; margin-bottom: 10px; }
.doc .doc-sub { color: var(--muted); margin-bottom: 34px; font-size: 1.02rem; }
.doc-card {
  background: #fff; border-radius: 20px; padding: clamp(22px, 4vw, 40px);
  box-shadow: 0 4px 24px rgba(0,0,0,.05); margin-bottom: 20px;
}
.doc h2 { font-size: 1.3rem; letter-spacing: -.015em; margin: 28px 0 10px; }
.doc h2:first-child { margin-top: 0; }
.doc h3 { font-size: 1.02rem; margin: 20px 0 6px; }
.doc p { margin-bottom: 12px; font-size: .95rem; }
.doc ul, .doc ol { margin: 0 0 12px 22px; font-size: .95rem; }
.doc li { margin-bottom: 6px; }
.doc a { color: var(--accent); text-decoration: none; }
.doc a:hover { text-decoration: underline; }
.doc .stand { color: var(--muted); font-size: .82rem; margin-top: 24px; }

/* FAQ-Auf-/Zuklapper */
.doc details {
  background: #fff; border-radius: 16px; padding: 18px 22px; margin-bottom: 12px;
  box-shadow: 0 2px 14px rgba(0,0,0,.04);
}
.doc summary {
  cursor: pointer; font-weight: 600; font-size: 1rem; list-style: none;
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
}
.doc summary::-webkit-details-marker { display: none; }
.doc summary::after { content: "+"; font-size: 1.35rem; color: var(--accent); font-weight: 400; flex: none; }
.doc details[open] summary::after { content: "–"; }
.doc details p { color: var(--muted); font-size: .93rem; margin: 10px 0 0; }
.doc .faq-group { font-size: .85rem; font-weight: 650; color: var(--accent); margin: 30px 0 12px; }
.doc .faq-group:first-of-type { margin-top: 0; }

/* Formulare (Support) */
.doc label { display: block; font-size: .86rem; font-weight: 600; margin-bottom: 16px; }
.doc input, .doc select, .doc textarea {
  display: block; width: 100%; margin-top: 6px;
  font: inherit; font-size: .95rem; padding: 11px 14px;
  border: 1px solid rgba(0,0,0,.16); border-radius: 12px; background: #fff;
}
.doc textarea { resize: vertical; min-height: 140px; }
.doc input:focus, .doc select:focus, .doc textarea:focus {
  outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(0,113,227,.18);
}
.doc .btn-primary {
  border: 0; cursor: pointer; background: var(--accent); color: #fff;
  border-radius: 980px; padding: 13px 34px; font: inherit; font-size: 1rem; font-weight: 600;
}
.doc .btn-primary:hover { background: var(--accent-hover); }
.doc .btn-primary:disabled { background: #b8d6f5; cursor: not-allowed; }
.doc .msg { font-size: .9rem; margin-top: 14px; }
.doc .msg.ok { color: var(--ok); }
.doc .msg.bad { color: var(--warn); }
.doc .success-box {
  background: #e7f5ec; color: #14532d; border-radius: 14px; padding: 18px 22px; font-size: .95rem;
}

footer.doc-foot { background: var(--bg-alt); border-top: 1px solid rgba(0,0,0,.07); padding: 26px 22px; }
.doc-foot .foot-inner { max-width: 860px; margin: 0 auto; font-size: .8rem; color: var(--muted); }
.doc-foot a { color: var(--muted); text-decoration: none; margin-right: 16px; }
.doc-foot a:hover { text-decoration: underline; }
.doc-foot .links { margin-bottom: 8px; }