/* ============================================
   BONI VERLAG — Stylesheet
   Warm Editorial Design
   ============================================ */

/* --- Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,600;0,700;1,400;1,600&family=Source+Sans+3:ital,wght@0,300;0,400;0,600;1,300;1,400&display=swap');

/* --- Variables --- */
:root {
  --cream: #FAF6F1;
  --terracotta: #C4704B;
  --walnut: #3A2E2A;
  --sand: #E8DDD3;
  --copper: #B8703F;
  --copper-light: #D4956A;
  --text: #3a3430;
  --text-light: #57514c;
  --white: #FFFDF9;

  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'Source Sans 3', 'Segoe UI', sans-serif;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 6rem;
  --space-2xl: 8rem;

  --max-width: 1140px;
  --max-width-text: 720px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
}

body {
  font-family: var(--font-body);
  font-size: 1.125rem;
  font-weight: 400;
  line-height: 1.7;
  color: var(--text);
  background-color: var(--cream);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::selection {
  background-color: var(--terracotta);
  color: var(--white);
}

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

a {
  color: var(--terracotta);
  text-decoration: none;
  transition: color 0.25s ease;
}

a:hover {
  color: var(--copper);
}

a:focus-visible {
  outline: 2px solid var(--terracotta);
  outline-offset: 3px;
  border-radius: 2px;
}

/* --- Layout --- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

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

/* --- Header --- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--cream);
  border-bottom: 1px solid var(--sand);
  transition: box-shadow 0.3s ease;
}

.header.scrolled {
  box-shadow: 0 2px 20px rgba(58, 46, 42, 0.08);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) var(--space-md);
  max-width: var(--max-width);
  margin: 0 auto;
}

.header__logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  transition: opacity 0.25s ease;
}

.header__logo:hover {
  opacity: 0.8;
}

.header__logo img {
  height: 40px;
  width: auto;
  mix-blend-mode: multiply;
}

.header__logo-text {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--walnut);
  letter-spacing: -0.02em;
}

.header__nav {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  list-style: none;
}

.header__nav a {
  font-size: 0.95rem;
  font-weight: 400;
  color: var(--text-light);
  text-decoration: none;
  position: relative;
  padding-bottom: 2px;
}

.header__nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1.5px;
  background-color: var(--terracotta);
  transition: width 0.3s ease;
}

.header__nav a:hover::after,
.header__nav a.active::after {
  width: 100%;
}

.header__nav a:hover,
.header__nav a.active {
  color: var(--walnut);
}

/* Mobile menu toggle */
.header__toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-xs);
  color: var(--walnut);
}

.header__toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background-color: currentColor;
  margin: 5px 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.header__toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.header__toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* --- Hero --- */
.hero {
  padding: var(--space-xl) 0 var(--space-lg);
  text-align: center;
  position: relative;
}

.hero__tagline {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--terracotta);
  margin-bottom: var(--space-md);
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--walnut);
  margin-bottom: var(--space-md);
  letter-spacing: -0.02em;
}

.hero__title em {
  font-style: italic;
  color: var(--terracotta);
}

.hero__text {
  max-width: 580px;
  margin: 0 auto;
  font-size: 1.2rem;
  line-height: 1.8;
  color: var(--text-light);
}

/* Decorative divider */
.divider {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-lg) 0;
}

.divider__line {
  width: 60px;
  height: 1px;
  background-color: var(--sand);
}

.divider__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--terracotta);
}

/* --- About --- */
.about {
  padding: 0 0 var(--space-lg);
}

.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  align-items: start;
}

.about__heading {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 600;
  color: var(--walnut);
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.about__heading em {
  font-style: italic;
  color: var(--terracotta);
}

.about__content p {
  margin-bottom: var(--space-sm);
  color: var(--text);
}

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

/* --- Books Showcase (Ullstein-style) --- */
.books-showcase {
  padding: var(--space-xl) 0;
  background-color: var(--sand);
  position: relative;
  overflow: hidden;
}

.books-showcase::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--copper-light), transparent);
}

.books-showcase__label {
  display: block;
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--terracotta);
  margin-bottom: var(--space-xs);
}

.books-showcase__heading {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 600;
  color: var(--walnut);
  margin-bottom: var(--space-lg);
}

.books-showcase__scroll {
  display: flex;
  gap: var(--space-lg);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  -ms-overflow-style: none;
  padding-bottom: var(--space-md);
}

.books-showcase__scroll::-webkit-scrollbar {
  display: none;
}

.books-showcase__item {
  flex: 0 0 320px;
  scroll-snap-align: start;
  scroll-snap-stop: always;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  transition: transform 0.3s ease;
}

.books-showcase__item:hover {
  transform: translateY(-4px);
}

.books-showcase__mock {
  width: 220px;
  height: auto;
  margin-bottom: var(--space-sm);

  transition: transform 0.6s ease, filter 0.6s ease;
}

.books-showcase__item:hover .books-showcase__mock {
  animation: bookSpin 0.8s ease-in-out;

}

.books-showcase__info {
  padding-top: var(--space-sm);
}

.books-showcase__badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--terracotta);
  background-color: rgba(196, 112, 75, 0.12);
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  margin-bottom: var(--space-xs);
}

.books-showcase__title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--walnut);
  line-height: 1.4;
  margin-bottom: var(--space-xs);
}

.books-showcase__desc {
  font-size: 0.95rem;
  color: var(--text-light);
  line-height: 1.6;
  max-width: 280px;
  margin-bottom: var(--space-sm);
}

.books-showcase__btn {
  display: inline-block;
  padding: 0.6rem 1.5rem;
  background-color: var(--terracotta);
  color: var(--white);
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: 6px;
  text-decoration: none;
  transition: background-color 0.25s ease, transform 0.15s ease;
}

.books-showcase__btn:hover {
  background-color: var(--copper);
  color: var(--white);
  transform: translateY(-2px);
}

/* --- Footer --- */
.footer {
  padding: var(--space-lg) 0 var(--space-md);
  border-top: 1px solid var(--sand);
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.footer__copy {
  font-size: 0.9rem;
  color: var(--text-light);
}

.footer__links {
  display: flex;
  gap: var(--space-md);
  list-style: none;
}

.footer__links a {
  font-size: 0.9rem;
  color: var(--text-light);
}

.footer__links a:hover {
  color: var(--terracotta);
}

/* --- Legal Pages --- */
.legal {
  padding: var(--space-xl) 0 var(--space-2xl);
}

.legal__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  color: var(--walnut);
  margin-bottom: var(--space-lg);
  letter-spacing: -0.02em;
}

.legal h2 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--walnut);
  margin-top: var(--space-lg);
  margin-bottom: var(--space-sm);
}

.legal h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--walnut);
  margin-top: var(--space-md);
  margin-bottom: var(--space-xs);
}

.legal p {
  margin-bottom: var(--space-sm);
}

.legal ul {
  margin-bottom: var(--space-sm);
  padding-left: 1.5rem;
}

.legal li {
  margin-bottom: var(--space-xs);
}

.legal a {
  word-break: break-all;
}

.legal__contact {
  background-color: var(--sand);
  padding: var(--space-md);
  border-radius: 4px;
  margin: var(--space-md) 0;
  line-height: 2;
}

.legal__contact strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--walnut);
  margin-bottom: var(--space-xs);
}

/* --- Animations --- */
@keyframes bookSpin {
  0% { transform: perspective(800px) rotateY(0deg); }
  50% { transform: perspective(800px) rotateY(25deg); }
  100% { transform: perspective(800px) rotateY(0deg); }
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-up {
  opacity: 0;
  animation: fadeUp 0.6s ease forwards;
}

.fade-up:nth-child(1) { animation-delay: 0.1s; }
.fade-up:nth-child(2) { animation-delay: 0.2s; }
.fade-up:nth-child(3) { animation-delay: 0.3s; }

@media (prefers-reduced-motion: reduce) {
  .fade-up {
    opacity: 1;
    animation: none;
  }

  html {
    scroll-behavior: auto;
  }
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .header__toggle {
    display: block;
  }

  .header__nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background-color: var(--cream);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: var(--space-lg);
    transition: right 0.35s ease;
    box-shadow: -4px 0 20px rgba(58, 46, 42, 0.1);
  }

  .header__nav.open {
    right: 0;
  }

  .header__nav a {
    font-size: 1.2rem;
  }

  .about__grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .books-showcase__scroll {
    gap: var(--space-md);
  }

  .books-showcase__item {
    flex: 0 0 260px;
  }

  .footer__inner {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: var(--space-lg) 0 var(--space-md);
  }

  .books-showcase__item {
    flex: 0 0 220px;
  }
}

/* --- About Page (Über uns) --- */
.about-page {
  padding: var(--space-xl) 0 var(--space-2xl);
}

.about-page__intro {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: var(--space-lg);
  align-items: start;
}

.about-page__portrait {
  width: 250px;
  height: 250px;
  object-fit: cover;
  border-radius: 50%;
  box-shadow: 6px 6px 20px rgba(58, 46, 42, 0.12);
  border: 4px solid var(--sand);
}

.about-page__greeting {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--walnut);
  margin-bottom: var(--space-sm);
}

.about-page__name {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  color: var(--walnut);
  margin-bottom: var(--space-md);
  letter-spacing: -0.02em;
}

.about-page__name em {
  font-style: italic;
  color: var(--terracotta);
}

.about-page__text p {
  margin-bottom: var(--space-sm);
  color: var(--text);
}

.about-page__text p:last-child {
  margin-bottom: 0;
}

.about-page__highlight {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.3rem;
  color: var(--terracotta);
  border-left: 3px solid var(--terracotta);
  padding-left: var(--space-md);
  margin: var(--space-lg) 0;
  line-height: 1.6;
}

.about-page__link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 600;
  color: var(--terracotta);
  border-bottom: 1.5px solid transparent;
  transition: border-color 0.25s ease;
}

.about-page__link:hover {
  border-bottom-color: var(--terracotta);
}

@media (max-width: 768px) {
  .about-page__intro {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .about-page__portrait {
    width: 200px;
    height: 200px;
    margin: 0 auto;
  }

  .about-page__highlight {
    text-align: left;
  }
}

/* --- Books Page (Unsere Bücher) --- */
.books-page {
  padding: var(--space-xl) 0 var(--space-2xl);
}

.books-page__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  color: var(--walnut);
  text-align: center;
  margin-bottom: var(--space-sm);
  letter-spacing: -0.02em;
}

.books-page__subtitle {
  text-align: center;
  color: var(--text-light);
  font-size: 1.1rem;
  margin-bottom: var(--space-xl);
  max-width: 550px;
  margin-left: auto;
  margin-right: auto;
}

.books-page__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-lg);
}

.book-card {
  background-color: var(--white);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(58, 46, 42, 0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.book-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 8px 30px rgba(58, 46, 42, 0.14);
}

.book-card__cover {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  border-bottom: 1px solid var(--sand);
}

.book-card__info {
  padding: var(--space-md);
}

.book-card__badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--terracotta);
  background-color: rgba(196, 112, 75, 0.1);
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  margin-bottom: var(--space-sm);
}

.book-card__title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--walnut);
  line-height: 1.4;
  margin-bottom: var(--space-xs);
}

.book-card__desc {
  font-size: 0.95rem;
  color: var(--text-light);
  line-height: 1.6;
}

@media (max-width: 480px) {
  .books-page__grid {
    grid-template-columns: 1fr;
  }
}

/* --- 3D Book Mockup --- */
.book-3d {
  perspective: 800px;
  display: flex;
  justify-content: center;
  padding: var(--space-sm) var(--space-md);
  margin-bottom: var(--space-sm);
}

.book-3d__wrap {
  width: 190px;
  height: 275px;
  position: relative;
  transform-style: preserve-3d;
  transform: rotateY(-25deg);
  transition: transform 0.4s ease;
}

.book-3d__wrap:hover {
  transform: rotateY(-10deg);
}

.book-3d__front {
  position: absolute;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 0 2px 2px 0;
  backface-visibility: hidden;
}

.book-3d__spine {
  position: absolute;
  left: 0;
  top: 0;
  width: 28px;
  height: 100%;
  background: linear-gradient(90deg, #d4a373, #c4956a, #b8864e);
  transform: rotateY(90deg) translateZ(14px);
  transform-origin: left center;
  border-radius: 2px 0 0 2px;
}

.book-3d__pages {
  position: absolute;
  right: 0;
  top: 4px;
  bottom: 4px;
  width: 28px;
  background: linear-gradient(90deg, #f5f0e8, #ede6db, #f5f0e8);
  transform: rotateY(90deg) translateZ(162px);
  transform-origin: right center;
  border-radius: 0 1px 1px 0;
}

.book-3d__shadow {
  position: absolute;
  bottom: -10px;
  left: 15%;
  width: 70%;
  height: 12px;
  background: radial-gradient(ellipse, rgba(58, 46, 42, 0.18) 0%, transparent 70%);
  filter: blur(6px);
  transform: rotateY(25deg);
}

/* Books page with 3D mockups */
.books-page__grid--3d {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
}

.book-card--3d {
  text-align: center;
  background: none;
  box-shadow: none;
  border-radius: 0;
}

.book-card--3d:hover {
  transform: none;
  box-shadow: none;
}

.book-card--3d .book-card__info {
  padding: var(--space-md) 0 0;
}

.book-card__mock {
  width: 100%;
  max-width: 280px;
  height: auto;
  margin: 0 auto;

  transition: transform 0.6s ease, filter 0.6s ease;
}

.book-card--3d:hover .book-card__mock {
  animation: bookSpin 0.8s ease-in-out;

}

/* Home page book covers in placeholder cards */
.books__card--cover {
  padding: 0;
  background: none;
  box-shadow:
    4px 4px 12px rgba(58, 46, 42, 0.1),
    -1px -1px 4px rgba(255, 255, 255, 0.6);
}

.books__card--cover::before {
  display: none;
}

.books__card--cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 4px;
}

/* --- Signup / Testleser Section (ConvertKit Override) --- */
.signup {
  padding: var(--space-xl) 0;
  text-align: center;
}

/* Override ConvertKit default styles to match site */
.signup .formkit-form[data-uid="8a0c923722"] {
  background-color: transparent !important;
  border: none !important;
  max-width: 100% !important;
  border-radius: 0 !important;
}

.signup .formkit-form[data-uid="8a0c923722"] .formkit-background {
  display: none !important;
}

.signup .formkit-form[data-uid="8a0c923722"] [data-style="minimal"] {
  padding: 0 !important;
}

.signup .formkit-form[data-uid="8a0c923722"] .formkit-header {
  color: var(--walnut) !important;
}

.signup .formkit-form[data-uid="8a0c923722"] .formkit-header h2 {
  font-family: var(--font-display) !important;
  font-size: clamp(1.8rem, 4vw, 2.4rem) !important;
  font-weight: 600 !important;
  color: var(--walnut) !important;
}

.signup .formkit-form[data-uid="8a0c923722"] .formkit-subheader p {
  font-family: var(--font-body) !important;
  color: var(--text-light) !important;
  font-size: 1rem !important;
  line-height: 1.7 !important;
  max-width: 650px;
  margin-left: auto;
  margin-right: auto;
}

.signup .formkit-form[data-uid="8a0c923722"] .formkit-input {
  font-family: var(--font-body) !important;
  background-color: var(--white) !important;
  border: 1.5px solid var(--sand) !important;
  border-radius: 6px !important;
  padding: 0.8rem 1rem !important;
  font-size: 1rem !important;
  color: var(--text) !important;
}

.signup .formkit-form[data-uid="8a0c923722"] .formkit-input:focus {
  border-color: var(--terracotta) !important;
  box-shadow: 0 0 0 3px rgba(196, 112, 75, 0.1) !important;
}

.signup .formkit-form[data-uid="8a0c923722"] .formkit-submit {
  background-color: var(--terracotta) !important;
  border-radius: 6px !important;
  font-family: var(--font-body) !important;
  transition: background-color 0.25s ease, transform 0.15s ease !important;
}

.signup .formkit-form[data-uid="8a0c923722"] .formkit-submit:hover {
  background-color: var(--copper) !important;
}

.signup .formkit-form[data-uid="8a0c923722"] .formkit-submit > span {
  font-weight: 600 !important;
  font-size: 1rem !important;
  padding: 0.9rem 2rem !important;
}

.signup .formkit-form[data-uid="8a0c923722"] .formkit-guarantee {
  color: var(--text-light) !important;
  font-family: var(--font-body) !important;
}

@media (max-width: 480px) {

  .books-page__grid--3d {
    grid-template-columns: 1fr;
  }

  .book-3d__wrap {
    width: 160px;
    height: 230px;
  }
}