/* Princeps Support-Site — dunkel, minimal, keine externen Deps. */
:root {
  --bg: #0a0c0f;
  --surface: #16181e;
  --surface-2: #20222a;
  --border: #30333d;
  --text: #e8e9ee;
  --text-muted: #a5a8b4;
  --text-subtle: #797c8a;
  --accent: #27ae60;
  --accent-fg: #08090c;
  --link: #6bb4ff;
  --radius: 4px;
  --max: 780px;
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* Header */
.page-header {
  border-bottom: 1px solid var(--border);
  background: rgba(10, 12, 15, 0.9);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 10;
}
.page-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
  gap: 1rem;
  flex-wrap: wrap;
}
.brand {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text);
  text-decoration: none;
  letter-spacing: 0.02em;
}
.page-header nav {
  display: flex;
  gap: 1.25rem;
  font-size: 0.9rem;
}
.page-header nav a {
  color: var(--text-muted);
  text-decoration: none;
}
.page-header nav a:hover,
.page-header nav a.active {
  color: var(--text);
}

/* Main */
.main {
  padding: 2rem 1.25rem 4rem;
}
.hero h1 {
  font-size: 2.25rem;
  margin: 0 0 0.5rem;
  letter-spacing: -0.01em;
}
.hero .lead {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin: 0 0 2rem;
}

/* Cards */
.cards {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  margin-top: 1rem;
}
.card {
  display: block;
  padding: 1.25rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  text-decoration: none;
  transition: border-color 120ms;
}
.card:hover {
  border-color: var(--accent);
}
.card-icon {
  font-size: 1.4rem;
  margin-bottom: 0.35rem;
}
.card-title {
  font-weight: 600;
  margin-bottom: 0.15rem;
}
.card-desc {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Prose (Support + Datenschutz) */
.prose h1 { font-size: 1.8rem; margin: 0 0 0.35rem; letter-spacing: -0.01em; }
.prose h2 {
  font-size: 1.15rem;
  margin: 2rem 0 0.6rem;
  color: var(--text);
}
.prose p, .prose ul { margin: 0.6rem 0; }
.prose ul { padding-left: 1.25rem; }
.prose li { margin: 0.25rem 0; }
.prose a {
  color: var(--link);
  text-decoration: none;
}
.prose a:hover { text-decoration: underline; }
.lead {
  color: var(--text-muted);
  font-size: 1.02rem;
}
.muted {
  color: var(--text-subtle);
  font-size: 0.9rem;
}
.footer-hint {
  margin-top: 2.5rem;
  color: var(--text-muted);
  font-size: 0.92rem;
}

/* Contact box on support page */
.contact-box {
  margin: 1.5rem 0 2rem;
  padding: 1rem 1.25rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.contact-box h2 {
  margin-top: 0;
  font-size: 1rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* FAQ accordions */
details {
  border-bottom: 1px solid var(--border);
  padding: 0.9rem 0;
}
details:first-of-type { border-top: 1px solid var(--border); }
details summary {
  cursor: pointer;
  font-weight: 500;
  color: var(--text);
  list-style: none;
  position: relative;
  padding-right: 1.5rem;
}
details summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 0;
  color: var(--text-subtle);
  font-weight: 300;
  transition: transform 120ms;
}
details[open] summary::after { content: "−"; }
details p {
  margin-top: 0.5rem;
  color: var(--text-muted);
}

/* Footer */
.page-footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem 0;
  color: var(--text-subtle);
  font-size: 0.85rem;
}
.page-footer .wrap {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  flex-wrap: wrap;
}
.page-footer a {
  color: var(--text-subtle);
  text-decoration: none;
}
.page-footer a:hover { color: var(--text); }
.sep { opacity: 0.5; }

@media (max-width: 480px) {
  .hero h1 { font-size: 1.8rem; }
  .page-header .wrap { flex-direction: column; align-items: flex-start; height: auto; padding-top: 0.75rem; padding-bottom: 0.75rem; }
  .page-header nav { gap: 1rem; }
}