/* ========== BASIS ========== */

:root {
  --bg: #ffffff;
  --bg-alt: #f7f4f0;
  --text: #111111;
  --muted: #555555;
  --accent-gold: #d9a441;
  --accent-gold-dark: #b38422;
  --accent-burgund: #5b2333;
  --border-light: #e2e2e2;

  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-serif: "Georgia", "Times New Roman", serif;

  --max-width: 1100px;
  --radius: 999px;
  --radius-soft: 12px;
  --shadow-soft: 0 14px 40px rgba(0, 0, 0, 0.12);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

/* Alle Bilder: niemals größer als Container, kein Overflow */

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

/* Figure / Figcaption barrierearm */

figure {
  margin: 0;
}

figcaption {
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: 0.4rem;
}

/* ========== HEADER / NAV ========== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(17, 17, 17, 0.96);
  backdrop-filter: blur(10px);
}

.nav {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0.75rem 1.25rem;
  display: flex;
  justify-content: flex-end;
  gap: 1.5rem;
  align-items: center;
}

.nav a {
  color: #f7f4f0;
  text-decoration: none;
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.nav a:hover {
  color: var(--accent-gold);
}

/* ========== SECTIONS ALLGEMEIN ========== */

.section,
.hero,
.section-keynotes,
.section-about,
.section-book,
.section-book-preorder,
.section-expertcard,
.section-faq,
.section-contact,
.section-socialproof {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 3.5rem 1.25rem;
}

.section header > h2 {
  font-family: var(--font-serif);
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.section header > p {
  margin-top: 0;
  color: var(--muted);
}

/* ========== HERO ========== */

.hero {
  padding-top: 4rem;
  padding-bottom: 4rem;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 3rem;
  align-items: center;
}

.hero-text h1 {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 4vw, 3.5rem);
  margin: 0 0 0.5rem;
}

.hero-subline {
  font-size: 1.2rem;
  font-weight: 500;
  margin: 0 0 0.75rem;
}

.hero-support {
  margin: 0 0 1.5rem;
  color: var(--muted);
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* Hero-Bild: definierte Box, Bild füllt Box ohne Überlauf */

.hero-image {
  min-height: 260px;
  border-radius: 24px;
  background: radial-gradient(circle at 10% 0%, #111 0, #000 35%, #2f2328 100%);
  box-shadow: var(--shadow-soft);
  position: relative;
  overflow: hidden;
}

.hero-image figure {
  margin: 0;
  height: 100%;
}

.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ========== BUTTONS ========== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.6rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent-gold);
  color: #111;
}

.btn-primary:hover {
  background: var(--accent-gold-dark);
}

.btn-secondary {
  background: transparent;
  color: #111;
  border-color: var(--accent-gold);
}

.btn-secondary:hover {
  background: var(--accent-gold);
  color: #111;
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border-color: var(--border-light);
}

.btn-outline:hover {
  border-color: var(--accent-gold);
}

/* ========== BENEFITS / NUTZEN ========== */

.benefits {
  margin-top: 3rem;
  border-top: 1px solid var(--border-light);
  padding-top: 2.5rem;
}

.benefits h2 {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  margin-bottom: 1.5rem;
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.75rem;
}

.benefits-grid h3 {
  font-size: 1.05rem;
  margin-bottom: 0.4rem;
}

.benefits-grid p {
  margin: 0;
  color: var(--muted);
}

/* ========== THESEN ========== */

.thesen {
  margin-top: 3rem;
  padding: 2rem 1.5rem;
  background: var(--bg-alt);
  border-radius: 18px;
}

.thesen ol {
  margin: 0 0 1.5rem 1.4rem;
  padding: 0;
}

.thesen li + li {
  margin-top: 0.3rem;
}

.thesen-cta {
  font-weight: 600;
  margin-bottom: 1rem;
}

/* ========== KEYNOTES ========== */

.section-keynotes {
  border-top: 1px solid var(--border-light);
}

.keynote {
  border-radius: 14px;
  border: 1px solid var(--border-light);
  padding: 1.5rem 1.4rem;
  margin-top: 1.5rem;
}

.keynote h3 {
  margin-top: 0;
  font-size: 1.1rem;
}

.keynote p {
  margin: 0.4rem 0;
}

/* ========== ABOUT ========== */

.section-about p {
  max-width: 720px;
}

/* ========== BUCH (kurze Beschreibung) ========== */

.section-book {
  background: #0d0b0c;
  color: #f7f4f0;
  border-radius: 32px;
  margin-block: 3rem;
}

.section-book header h2 {
  color: #f7f4f0;
}

.section-book p {
  max-width: 700px;
}

.section-book .book-cta .btn {
  margin-right: 0.75rem;
}

/* ========== BUCH VORBESTELLUNG + COVER ========== */

.section-book-preorder {
  border-top: 1px solid var(--border-light);
}

.book-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.4fr);
  gap: 2.5rem;
  margin-top: 2rem;
  align-items: flex-start;
}

/* Container für das Cover – begrenzt, damit es nichts überlagert */

.book-cover-placeholder {
  max-width: 340px;
  width: 100%;
}

.book-cover-placeholder figure {
  border-radius: 18px;
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  background: #111;
}

/* Buchcover-Bild: füllt Figure, bleibt aber im Rahmen */

.book-cover-placeholder img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* Buch-Textteil */

.book-content h3 {
  margin-top: 0;
  margin-bottom: 0.5rem;
}

.book-content ul {
  margin-top: 0.2rem;
  margin-bottom: 1rem;
  padding-left: 1.2rem;
}

.book-preorder-cta {
  margin-top: 1.5rem;
}

.preorder-form div {
  margin-bottom: 0.8rem;
}

.preorder-form input {
  width: 100%;
  padding: 0.6rem 0.75rem;
  border-radius: 8px;
  border: 1px solid var(--border-light);
  font-family: var(--font-sans);
  font-size: 0.95rem;
}

.preorder-form input:focus {
  outline: none;
  border-color: var(--accent-gold);
}

.small-print {
  margin-top: 0.6rem;
  font-size: 0.8rem;
  color: var(--muted);
}

/* ========== EXPERTENKARTE ========== */

.section-expertcard {
  border: 1px solid var(--border-light);
  border-radius: 18px;
  background: #fff;
}

.section-expertcard ul {
  padding-left: 1.2rem;
}

/* ========== SOCIAL PROOF ========== */

.section-socialproof {
  border-top: 1px solid var(--border-light);
}

.socialproof-grid {
  margin-top: 1.5rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

/* Bilder in gleichmäßigen Kacheln */

.socialproof-grid figure {
  border-radius: 18px;
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  background: #111;
}

.socialproof-grid img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ========== FAQ ========== */

.section-faq details {
  border-radius: 10px;
  border: 1px solid var(--border-light);
  padding: 0.8rem 1rem;
  margin-top: 0.75rem;
  background: #fff;
}

.section-faq summary {
  cursor: pointer;
  font-weight: 500;
}

.section-faq p {
  margin-top: 0.5rem;
  color: var(--muted);
}

/* ========== KONTAKT ========== */

.section-contact {
  border-top: 1px solid var(--border-light);
}

.contact-form {
  max-width: 640px;
}

.contact-form div {
  margin-bottom: 1rem;
}

.contact-form label {
  display: block;
  margin-bottom: 0.25rem;
  font-size: 0.95rem;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 0.6rem 0.75rem;
  border-radius: 8px;
  border: 1px solid var(--border-light);
  font-family: var(--font-sans);
  font-size: 0.95rem;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--accent-gold);
}

/* ========== FOOTER ========== */

.site-footer {
  border-top: 1px solid var(--border-light);
  padding: 1rem 1.25rem 2rem;
  font-size: 0.85rem;
  color: var(--muted);
  text-align: center;
}

/* ========== RESPONSIVE ========== */

@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-image {
    order: -1;
    min-height: 220px;
  }

  .benefits-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .nav {
    justify-content: center;
    flex-wrap: wrap;
  }

  /* Buchbereich: untereinander statt nebeneinander */

  .book-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .book-cover-placeholder {
    max-width: 260px;
    margin: 0 auto 1.5rem;
  }
}

@media (max-width: 600px) {
  .section,
  .hero {
    padding-inline: 1rem;
  }

  .section-book {
    border-radius: 0;
  }

  .hero-cta {
    flex-direction: column;
    align-items: flex-start;
  }
}