/* ==========================================================================
   Lutz Falkner – Autoren-Website
   Basis-Stylesheet (mobile-first)
   ========================================================================== */

/* --- Design Tokens ------------------------------------------------------ */
:root {
  /* Farbwelt: helles Chamois / Creme, mit dunklen Brauntönen als Kontrast */
  --color-bg: #f3ecdc;
  --color-bg-alt: #e9decb;
  --color-surface: #f8f2e4;
  --color-surface-alt: #ecdfc4;
  --color-border: #d7c6a3;

  --color-text: #2e2013;
  --color-text-muted: #5c4a37;
  --color-text-faint: #8a7860;

  --color-accent: #6b4226;      /* dunkles Braun als Akzent */
  --color-accent-strong: #4a2f1e;
  --color-blood: #7a3229;       /* gedämpfter Rotbraunton, sparsam für "Kalter Wald" */

  --font-heading: Georgia, 'Times New Roman', serif;
  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  --container-max: 1120px;
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
  --space-6: 6rem;

  --radius: 4px;
  --transition-fast: 0.25s ease;
  --transition-slow: 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

/* --- Reset --------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
ul { list-style: none; margin: 0; padding: 0; }
h1, h2, h3 { font-family: var(--font-heading); font-weight: 400; margin: 0 0 var(--space-2); }
p { margin: 0 0 var(--space-2); }

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-3);
}

/* Respect reduced-motion preference */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; animation: none !important; }
}

/* --- Navigation ----------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(243, 236, 220, 0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}
.site-header.is-scrolled {
  border-bottom-color: var(--color-border);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-2) var(--space-3);
  max-width: var(--container-max);
  margin: 0 auto;
}
.nav__brand {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--color-text);
  text-decoration: none;
}
.nav__brand::after {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-left: 0.4em;
  margin-bottom: 0.15em;
  border-radius: 50%;
  background: var(--color-blood);
  vertical-align: middle;
}
.nav__toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}
.nav__toggle span {
  display: block;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}
.nav__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav__links {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
  flex-direction: column;
  display: none;
  padding: var(--space-2) var(--space-3) var(--space-3);
}
.nav__links.is-open { display: flex; }
.nav__links a {
  display: block;
  padding: var(--space-2) var(--space-2);
  text-decoration: none;
  color: var(--color-text-muted);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  border-radius: 999px;
  transition: color var(--transition-fast), background-color var(--transition-fast);
}
.nav__links a:hover,
.nav__links a:focus-visible {
  color: var(--color-accent-strong);
  background-color: rgba(107, 66, 38, 0.12);
}

@media (min-width: 720px) {
  .nav__toggle { display: none; }
  .nav__links {
    position: static;
    display: flex !important;
    flex-direction: row;
    background: none;
    border: none;
    padding: 0;
    gap: var(--space-2);
  }
  .nav__links a { padding: 0.5em 1.1em; }
}

/* --- Hero ------------------------------------------------------------------ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--space-6) + 3rem) 0 var(--space-6);
  background:
    radial-gradient(ellipse at top, rgba(107, 66, 38, 0.07), transparent 60%),
    linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-alt) 100%);
}
.hero__grid {
  display: grid;
  gap: var(--space-4);
  align-items: center;
}
.hero__photo-wrap {
  order: -1;
  max-width: 260px;
  margin: 0 auto;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: 0 20px 60px rgba(46, 32, 19, 0.25);
}
.hero__name {
  margin-bottom: var(--space-2);
  text-align: center;
}
.hero__name-highlight {
  display: inline;
  font-size: clamp(2.6rem, 10vw, 4.4rem);
  font-weight: 700;
  letter-spacing: 0.01em;
  line-height: 1.08;
  color: var(--color-text);
  background-image: linear-gradient(180deg, transparent 60%, rgba(107, 66, 38, 0.22) 60%);
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
  padding: 0 0.06em;
}
.hero__claim {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 1.1rem;
  max-width: 40ch;
  margin: 0 auto var(--space-3);
}
.hero__cta {
  text-align: center;
}

@media (min-width: 860px) {
  .hero__grid {
    grid-template-columns: 1fr 1.2fr;
    text-align: left;
  }
  .hero__photo-wrap { order: 0; margin: 0; max-width: 320px; }
  .hero__name, .hero__claim { text-align: left; margin-left: 0; }
  .hero__cta { text-align: left; }
  .hero__name-highlight { padding: 0 0.08em; }
}

/* --- Buttons ------------------------------------------------------------- */
.btn {
  display: inline-block;
  padding: 0.85em 1.8em;
  border-radius: var(--radius);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  border: 1px solid var(--color-accent);
  transition: background var(--transition-fast), color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
  cursor: pointer;
}
.btn--primary {
  background: var(--color-accent);
  color: var(--color-bg);
}
.btn--primary:hover {
  background: var(--color-accent-strong);
  transform: translateY(-3px);
  box-shadow: 0 12px 26px rgba(74, 47, 30, 0.35);
}
.btn--secondary {
  background: transparent;
  color: var(--color-accent-strong);
}
.btn--secondary:hover {
  background: rgba(107, 66, 38, 0.08);
  transform: translateY(-3px);
  box-shadow: 0 10px 22px rgba(74, 47, 30, 0.18);
}
.btn--ghost {
  border-color: var(--color-border);
  color: var(--color-text-muted);
  background: transparent;
}
.btn--ghost:hover {
  border-color: var(--color-accent);
  color: var(--color-accent-strong);
  transform: translateY(-3px);
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

/* --- Sections ------------------------------------------------------------- */
.section {
  padding: var(--space-6) 0;
}
.section--alt { background: var(--color-bg-alt); }
.section--tight { padding-top: var(--space-3); }
.section__title {
  position: relative;
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-2);
  text-align: center;
}
.section__title::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 64px;
  height: 3px;
  border-radius: 2px;
  background: var(--color-blood);
  transform: translateX(-50%) scaleX(0);
  transform-origin: center;
  transition: transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}
.section__title.is-visible::after {
  transform: translateX(-50%) scaleX(1);
}
.section__intro {
  max-width: 60ch;
  margin: 0 auto var(--space-4);
  text-align: center;
  color: var(--color-text-muted);
}

/* Fade/slide scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- About section --------------------------------------------------------- */
.about__text {
  max-width: 68ch;
  margin: 0 auto;
  color: var(--color-text-muted);
}
.about__text p:first-child::first-letter {
  font-family: var(--font-heading);
  font-size: 2.6rem;
  color: var(--color-accent-strong);
  float: left;
  line-height: 1;
  padding-right: 0.15em;
}

/* --- Book feature / component ---------------------------------------------- */
.book {
  display: grid;
  gap: var(--space-4);
  align-items: start;
}
.book__cover {
  max-width: 320px;
  margin: 0 auto;
}
.book__cover img {
  border-radius: var(--radius);
  box-shadow: 0 30px 80px rgba(46, 32, 19, 0.3);
}
.book__title {
  font-size: 1.8rem;
  color: var(--color-text);
}
.book__genre {
  display: inline-block;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-blood);
  border: 1px solid rgba(122, 50, 41, 0.4);
  padding: 0.25em 0.7em;
  border-radius: 2px;
  margin-bottom: var(--space-2);
}
.book__description {
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
}
.book__sample-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  margin-top: var(--space-2);
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 2px;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}
.book__sample-link:hover {
  color: var(--color-accent-strong);
  border-color: var(--color-accent);
}

@media (min-width: 780px) {
  .book {
    grid-template-columns: 320px 1fr;
  }
  .book__cover { margin: 0; }
}

/* --- Reviews / Stimmen ------------------------------------------------------ */
.reviews {
  display: grid;
  gap: var(--space-3);
}
.review-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-4) var(--space-3);
  min-height: 180px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
}
.review-card::before {
  content: "\201C";
  font-family: var(--font-heading);
  font-size: 3rem;
  color: var(--color-border);
  position: absolute;
  top: 0.2em;
  left: 0.3em;
  line-height: 1;
}
.review-card__placeholder {
  color: var(--color-text-faint);
  font-style: italic;
  font-size: 0.9rem;
  text-align: center;
}

@media (min-width: 780px) {
  .reviews { grid-template-columns: repeat(3, 1fr); }
}

/* --- Footer ----------------------------------------------------------------- */
.site-footer {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  padding: var(--space-4) 0;
  text-align: center;
  color: var(--color-text-faint);
  font-size: 0.85rem;
}
.site-footer__links {
  display: flex;
  justify-content: center;
  gap: var(--space-3);
  margin-bottom: var(--space-2);
}
.site-footer__links a {
  text-decoration: none;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}
.site-footer__links a:hover { color: var(--color-accent-strong); }

/* --- Simple page header (Bücher / Impressum / Datenschutz) ------------------ */
.page-hero {
  padding: calc(var(--space-6) + 2rem) 0 var(--space-4);
  text-align: center;
}
.page-hero--tight { padding-bottom: var(--space-2); }
.page-hero__title { font-size: clamp(2rem, 6vw, 2.8rem); }
.page-hero__intro { color: var(--color-text-muted); max-width: 60ch; margin: 0 auto; }

/* --- Legal pages ------------------------------------------------------------ */
.legal {
  max-width: 70ch;
  margin: 0 auto;
  color: var(--color-text-muted);
}
.legal h2 {
  color: var(--color-text);
  font-size: 1.3rem;
  margin-top: var(--space-4);
  margin-bottom: 0.35rem;
}
.legal .placeholder {
  color: var(--color-text-faint);
  font-style: italic;
}
.legal ul {
  list-style: disc;
  padding-left: 1.4em;
  margin: 0 0 var(--space-2);
}
.legal li {
  margin-bottom: 0.4em;
}
.legal a {
  color: var(--color-accent-strong);
  text-decoration: underline;
}