/* ── Variables — Dark Fantasy Palette ── */
:root {
  --color-bg: #221e1c;
  --color-bg-alt: #2c2624;
  --color-bg-elevated: #38322e;
  --color-text: #f5f0e6;
  --color-text-muted: #c4b0a4;
  --color-accent: #8b4040;
  --color-accent-light: #d4a088;
  --color-brown: #6b4540;
  --color-brown-dark: #4a302c;
  --color-border: #4a3c38;
  --font-display: 'Marcellus', Georgia, serif;
  --font-body: 'Crimson Pro', Georgia, serif;
  --max-width: 1100px;
  --header-height: 72px;
}

/* ── Reset & Base ── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--color-accent-light);
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.2;
  color: var(--color-text);
}

::selection {
  background: var(--color-brown);
  color: var(--color-accent-light);
}

/* ── Header ── */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(34, 30, 28, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.nav {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: 0.02em;
}

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

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-accent);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-accent-light);
  transition: transform 0.3s, opacity 0.3s;
}

/* ── Hero ── */
.hero {
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: calc(var(--header-height) + 3rem) 1.5rem 4rem;
  position: relative;
  overflow: hidden;
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-label {
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 1rem;
}

.hero .hero-label {
  font-size: clamp(2.2rem, 6vw, 2.6rem);
  letter-spacing: 0.18em;
  margin-bottom: 1.25rem;
}

.hero h1 {
  font-size: clamp(3rem, 8vw, 5.5rem);
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

.hero-tagline {
  font-family: var(--font-body);
  font-size: clamp(1.1rem, 2.8vw, 1.4rem);
  font-style: italic;
  color: var(--color-text-muted);
  max-width: 36rem;
  margin: 0 auto;
  line-height: 1.6;
}

.hero-accent {
  position: absolute;
  bottom: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  height: 700px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(122, 53, 53, 0.14) 0%, rgba(92, 53, 48, 0.06) 40%, transparent 70%);
  pointer-events: none;
}

/* ── Page Hero (Books page) ── */
.page-hero {
  padding: calc(var(--header-height) + 4rem) 1.5rem 3rem;
  text-align: center;
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
}

.page-hero h1 {
  font-size: clamp(2.5rem, 6vw, 4rem);
  margin-bottom: 0.75rem;
}

.page-hero-desc {
  font-family: var(--font-body);
  font-size: 1.2rem;
  font-style: italic;
  color: var(--color-text-muted);
  max-width: 500px;
  margin: 0 auto;
}

/* ── Introduction ── */
.intro {
  padding: 6rem 0;
}

.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.intro-text h2 {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
}

.intro-text p {
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
  font-size: 1.05rem;
}

.intro-text p:last-child {
  margin-bottom: 0;
}

.intro-image img {
  width: 100%;
  aspect-ratio: 4/5;
  object-fit: cover;
  object-position: center top;
  border: 1px solid var(--color-border);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
}

/* ── Books Preview ── */
.books-preview {
  padding: 6rem 0;
  background: var(--color-bg-alt);
}

.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 3rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.section-header h2 {
  font-size: 2.5rem;
}

.section-header h2::after,
.intro-text h2::after,
.kontakt-info h2::after {
  content: '';
  display: block;
  width: 48px;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent), transparent);
  margin-top: 0.75rem;
}

.link-arrow {
  font-size: 0.9rem;
  font-weight: 400;
  letter-spacing: 0.02em;
  color: var(--color-accent);
}

.books-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.books-grid--single {
  grid-template-columns: 1fr;
  max-width: 360px;
  margin: 0 auto;
}

.book-card {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}

.book-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-brown);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5), 0 0 30px rgba(122, 53, 53, 0.12);
}

.book-cover,
.book-detail-cover {
  aspect-ratio: 2/3;
  overflow: hidden;
  background: var(--color-bg-elevated);
}

.book-cover img,
.book-detail-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.book-info {
  padding: 1.5rem;
}

.book-info h3 {
  font-size: 1.3rem;
  margin-bottom: 0.25rem;
}

.book-meta {
  font-size: 0.8rem;
  color: var(--color-accent);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.book-desc {
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

/* ── Books Full Page ── */
.books-full {
  padding: 4rem 0 6rem;
}

.book-detail {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 3rem;
  align-items: start;
  padding: 3rem 0;
  border-bottom: 1px solid var(--color-border);
}

.book-detail:last-child {
  border-bottom: none;
}

.book-detail--featured {
  max-width: 800px;
  margin: 0 auto;
  border-bottom: none;
}

.book-detail-content h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.book-detail-content p {
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
  max-width: 560px;
}

.book-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ── Buttons ── */
.btn-primary {
  display: inline-block;
  padding: 0.75rem 2rem;
  background: var(--color-accent);
  color: var(--color-bg);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid var(--color-accent);
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.btn-primary:hover {
  background: transparent;
  color: var(--color-accent-light);
  border-color: var(--color-accent);
}

.btn-secondary {
  display: inline-block;
  padding: 0.75rem 2rem;
  background: transparent;
  color: var(--color-text-muted);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid var(--color-border);
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s;
}

.btn-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent-light);
}

/* ── Kontakt / Newsletter ── */
.kontakt {
  padding: 6rem 0;
}

.kontakt-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.kontakt-info h2 {
  font-size: 2.5rem;
  margin-bottom: 1.25rem;
}

.kontakt-info > p {
  color: var(--color-text-muted);
  margin-bottom: 2rem;
}

.kontakt-details {
  list-style: none;
}

.kontakt-details li {
  margin-bottom: 1.25rem;
}

.kontakt-details strong {
  display: block;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 0.25rem;
}

.newsletter-form {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  padding: 2.5rem;
}

.newsletter-form h3 {
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 0.4rem;
  color: var(--color-text-muted);
}

.optional {
  font-weight: 300;
  text-transform: none;
  letter-spacing: 0;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-text);
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  transition: border-color 0.2s;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-brown);
}

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

.form-group textarea {
  resize: vertical;
}

.newsletter-form .btn-primary {
  width: 100%;
  margin-top: 0.5rem;
}

.form-group--checkbox {
  margin-bottom: 1.5rem;
}

.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.85rem;
  font-weight: 300;
  line-height: 1.5;
  text-transform: none;
  letter-spacing: 0;
  color: var(--color-text-muted);
  cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
  width: auto;
  margin-top: 0.2rem;
  flex-shrink: 0;
  accent-color: var(--color-accent);
  cursor: pointer;
}

.checkbox-label a {
  color: var(--color-accent);
}

.kontakt-details + .social-links {
  margin-top: 1.5rem;
}

/* ── Social links ── */
.social-links {
  display: flex;
  gap: 0.75rem;
  align-items: center;
}

.social-links--hero {
  justify-content: center;
  margin-top: 2rem;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--color-border);
  color: var(--color-accent);
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.social-link svg {
  width: 20px;
  height: 20px;
}

.social-link:hover {
  border-color: var(--color-accent);
  color: var(--color-accent-light);
  background: rgba(122, 53, 53, 0.1);
}

/* ── Legal pages ── */
.legal-page {
  padding: calc(var(--header-height) + 4rem) 0 6rem;
}

.legal-content {
  max-width: 720px;
  margin: 0 auto;
}

.legal-content h1 {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  margin-bottom: 0.5rem;
}

.legal-updated {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 3rem;
}

.legal-content h2 {
  font-size: 1.5rem;
  margin: 2.5rem 0 1rem;
  color: var(--color-accent-light);
}

.legal-content h3 {
  font-size: 1.15rem;
  margin: 1.5rem 0 0.75rem;
  color: var(--color-text);
}

.legal-content p {
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.legal-content ul {
  color: var(--color-text-muted);
  margin: 0 0 1rem 1.25rem;
}

.legal-content li {
  margin-bottom: 0.4rem;
}

.legal-content strong {
  color: var(--color-text);
  font-weight: 500;
}

/* ── Footer ── */
.site-footer {
  padding: 2rem 0;
  border-top: 1px solid var(--color-border);
  background: var(--color-bg-alt);
}

.site-footer .container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
  text-align: center;
}

.footer-social {
  width: 100%;
  display: flex;
  justify-content: center;
}

.site-footer .footer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  width: 100%;
}

.site-footer p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.5rem;
}

.footer-nav a {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

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

/* ── Responsive ── */
@media (max-width: 900px) {
  .intro-grid,
  .kontakt-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .books-grid {
    grid-template-columns: 1fr;
    max-width: 360px;
    margin: 0 auto;
  }

  .book-detail {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin: 0 auto;
  }

  .book-detail-cover {
    max-width: 240px;
  }
}

@media (max-width: 640px) {
  .nav-links {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: 1.5rem;
    gap: 1rem;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-toggle.open span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .nav-toggle.open span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.open span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  .section-header {
    flex-direction: column;
    align-items: flex-start;
  }

}