/* brenn-holz.app – Landing Page im Apple-Stil.
   Bewusst ohne JavaScript, ohne externe Schriften, ohne Nachladen von fremden Servern.
   Farben: weiß / anthrazit / orange – wie die App. */

:root {
  --bg: #ffffff;
  --bg-soft: #f5f5f7;
  --card: #ffffff;
  --ink: #1d1d1f;
  --ink-soft: #6e6e73;
  --line: #d2d2d7;
  --hairline: rgba(0, 0, 0, 0.12);
  --accent: #f0600c;
  --accent-deep: #c24d06;
  --accent-ink: #ffffff;
  --accent-soft: #fdeadd;
  --header-bg: rgba(255, 255, 255, 0.8);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #000000;
    --bg-soft: #161617;
    --card: #1d1d1f;
    --ink: #f5f5f7;
    --ink-soft: #a1a1a6;
    --line: #424245;
    --hairline: rgba(255, 255, 255, 0.18);
    --accent: #f97a2e;
    --accent-deep: #f97a2e;
    --accent-ink: #23130a;
    --accent-soft: #2e1d12;
    --header-bg: rgba(0, 0, 0, 0.8);
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.55;
  -webkit-text-size-adjust: 100%;
}

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

a { color: var(--accent-deep); }

a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
  border-radius: 8px;
}

.wrap {
  max-width: 1024px;
  margin: 0 auto;
  padding: 0 22px;
}

section { scroll-margin-top: 64px; }

/* ---------- Kopfzeile (schwebend, leicht durchscheinend) ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--header-bg);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--hairline);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 52px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 9px;
  text-decoration: none;
  color: var(--ink);
  font-weight: 600;
  font-size: 17px;
  min-height: 44px;
  white-space: nowrap;
}

.brand img { width: 26px; height: 26px; }

.site-nav {
  display: flex;
  gap: 2px;
  margin-left: auto;
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 12px;
  text-decoration: none;
  color: var(--ink-soft);
  font-weight: 400;
  font-size: 14px;
  border-radius: 8px;
}

.site-nav a:hover { color: var(--ink); }

.header-cta { margin-left: auto; }
.site-nav + .header-cta { margin-left: 8px; }
.header-cta .btn { white-space: nowrap; min-height: 36px; padding: 0 16px; font-size: 14px; }

/* ---------- Knöpfe (Pillenform) ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 24px;
  border-radius: 980px;
  font-weight: 600;
  font-size: 17px;
  text-decoration: none;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
}

.btn-primary:hover { filter: brightness(1.06); }

.btn-secondary {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}

.btn-secondary:hover { background: var(--bg-soft); }

/* Textverweis mit Pfeil, wie „Weitere Infos >" */
.link-more {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  min-height: 48px;
  padding: 0 8px;
  font-size: 17px;
  font-weight: 400;
  text-decoration: none;
  color: var(--accent-deep);
}

.link-more:hover { text-decoration: underline; }

/* ---------- Held-Bereich: reine Typografie, zentriert ---------- */

.hero {
  text-align: center;
  padding: 96px 0 72px;
}

.hero .eyebrow {
  margin: 0 0 10px;
  font-size: 19px;
  font-weight: 600;
  color: var(--accent-deep);
}

.hero h1 {
  margin: 0 auto 20px;
  max-width: 15em;
  font-size: clamp(40px, 7vw, 72px);
  line-height: 1.05;
  letter-spacing: -0.015em;
  font-weight: 700;
}

.hero .lead {
  margin: 0 auto 32px;
  max-width: 33em;
  font-size: clamp(19px, 2.4vw, 24px);
  line-height: 1.4;
  color: var(--ink-soft);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 8px 20px;
  margin-bottom: 18px;
}

.hero-note {
  margin: 0;
  font-size: 14px;
  color: var(--ink-soft);
}

/* Drei Kurzfakten als ruhige Zeile */

.facts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  padding: 40px 0 64px;
  text-align: center;
}

.fact { font-size: 15px; color: var(--ink-soft); max-width: 22em; margin: 0 auto; }
.fact strong { display: block; color: var(--ink); font-size: 17px; margin-bottom: 4px; }

/* ---------- Abschnitte ---------- */

section.block { padding: 88px 0; }

section.block h2 {
  margin: 0 auto 12px;
  text-align: center;
  max-width: 22em;
  font-size: clamp(30px, 4.5vw, 48px);
  line-height: 1.1;
  letter-spacing: -0.012em;
  font-weight: 700;
}

.section-lead {
  margin: 0 auto 48px;
  text-align: center;
  color: var(--ink-soft);
  font-size: clamp(17px, 2vw, 21px);
  max-width: 36em;
}

.alt { background: var(--bg-soft); }

/* Funktions-Kacheln (Bento) */

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.card {
  background: var(--card);
  border-radius: 24px;
  padding: 28px;
}

.alt .card { box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04); }

.card h3 { margin: 0 0 8px; font-size: 20px; letter-spacing: -0.01em; }
.card p { margin: 0; color: var(--ink-soft); font-size: 15px; line-height: 1.5; }

.card .kicker {
  display: block;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent-deep);
  margin-bottom: 10px;
}

/* Datenschutz: dunkler Block, in beiden Farbwelten anthrazit */

.dark-block {
  background: #1d1d1f;
  color: #f5f5f7;
}

.dark-block h2 em { font-style: normal; color: #f97a2e; }

.privacy-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.privacy-grid li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  background: #29292c;
  border-radius: 16px;
  padding: 18px 20px;
  font-size: 15px;
  line-height: 1.5;
  color: #d5d5da;
}

.privacy-grid strong { color: #f5f5f7; }

.privacy-grid .check {
  flex: none;
  color: #f97a2e;
  font-weight: 700;
}

.privacy-foot {
  margin: 28px auto 0;
  text-align: center;
  font-size: 14px;
  color: #a1a1a6;
  max-width: 46em;
}

.privacy-foot a { color: #f97a2e; }

/* Preis-Stufen */

.tiers {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  align-items: stretch;
}

.tier {
  display: flex;
  flex-direction: column;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 28px;
}

.tier.featured { border-color: var(--accent); border-width: 2px; }

.tier h3 { margin: 0; font-size: 24px; letter-spacing: -0.01em; }

.tier .tag {
  align-self: flex-start;
  margin: 10px 0 4px;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent-deep);
  background: var(--accent-soft);
  border-radius: 980px;
  padding: 4px 12px;
}

.tier ul {
  margin: 14px 0 24px;
  padding-left: 20px;
  color: var(--ink-soft);
  font-size: 15px;
}

.tier li { margin-bottom: 8px; }

.tier .btn { margin-top: auto; }

.tiers-foot {
  margin: 28px 0 0;
  text-align: center;
  font-size: 14px;
  color: var(--ink-soft);
}

/* Häufige Fragen: schlichte Trennlinien statt Kästen */

.faq-list {
  max-width: 720px;
  margin: 0 auto;
  border-top: 1px solid var(--hairline);
}

.faq-list details { border-bottom: 1px solid var(--hairline); }

.faq-list summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 56px;
  padding: 6px 4px;
  font-weight: 600;
  font-size: 17px;
}

.faq-list summary::-webkit-details-marker { display: none; }

.faq-list summary::after {
  content: "+";
  font-size: 24px;
  font-weight: 400;
  color: var(--accent-deep);
  flex: none;
}

.faq-list details[open] summary::after { content: "–"; }

.faq-list .answer {
  padding: 0 4px 18px;
  color: var(--ink-soft);
  font-size: 15.5px;
}

.faq-list .answer p { margin: 0 0 8px; }
.faq-list .answer p:last-child { margin-bottom: 0; }

/* ---------- Fußzeile ---------- */

.site-footer {
  background: var(--bg-soft);
  border-top: 1px solid var(--hairline);
  padding: 24px 0 36px;
  font-size: 13px;
  color: var(--ink-soft);
}

.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 0 20px;
  align-items: center;
}

.site-footer nav { display: flex; flex-wrap: wrap; gap: 2px; margin-left: auto; }

.site-footer a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 10px;
  color: var(--ink-soft);
}

.site-footer a:hover { color: var(--ink); }

.footer-note {
  width: 100%;
  margin: 2px 0 0;
  padding-top: 10px;
  border-top: 1px solid var(--hairline);
  font-size: 12px;
}

/* ---------- Unterseiten (Impressum / Datenschutz) ---------- */

.page { padding: 56px 0 72px; }
.page h1 { font-size: clamp(30px, 4.5vw, 44px); margin: 0 0 10px; letter-spacing: -0.012em; }
.page h2 { font-size: 21px; margin: 36px 0 8px; letter-spacing: -0.01em; }
.page p, .page ul { color: var(--ink-soft); max-width: 46em; }

.notice {
  background: var(--accent-soft);
  border: 1px solid var(--accent);
  border-radius: 14px;
  padding: 14px 18px;
  margin: 20px 0 28px;
  color: var(--ink);
  font-weight: 600;
  max-width: 46em;
}

.placeholder {
  display: inline-block;
  background: var(--bg-soft);
  border: 1px dashed var(--ink-soft);
  border-radius: 6px;
  padding: 1px 8px;
  font-style: italic;
}

/* ---------- Schmale Bildschirme ---------- */

@media (max-width: 899px) {
  .site-nav { display: none; }
}

@media (max-width: 860px) {
  .hero { padding: 64px 0 48px; }

  .facts, .grid, .tiers, .privacy-grid { grid-template-columns: 1fr; }

  .facts { gap: 20px; padding: 32px 0 48px; }

  section.block { padding: 64px 0; }
}