/* BAUZ! – kinderbuchhaft, warm, per FTP deploybar */
@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@400;600;700&display=swap');

:root {
  --bauz-red: #c44d3f;
  --bauz-red-hover: #a83f33;
  --bauz-blue: #4a7fb5;
  --bauz-blue-hover: #3d6a99;
  --bauz-green: #5a9a5e;
  --bauz-green-hover: #4a8250;
  --bauz-parchment: #f5efe4;
  --bauz-parchment-dark: #ebe3d4;
  --bauz-anthracite: #2d3436;
  --bauz-anthracite-soft: #4a5558;
  --bauz-white: #fffdf9;
  --bauz-shadow: 0 4px 24px rgba(45, 52, 54, 0.08);
  --bauz-radius: 1.25rem;
  --bauz-radius-lg: 1.75rem;
  --max-width: 64rem;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: 'Nunito', system-ui, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--bauz-anthracite);
  background: var(--bauz-white);
}

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

a { color: inherit; }

.skip-link {
  position: absolute;
  left: -9999px;
  z-index: 100;
  padding: 0.75rem 1.25rem;
  background: var(--bauz-anthracite);
  color: var(--bauz-white);
  border-radius: var(--bauz-radius);
  text-decoration: none;
}
.skip-link:focus { left: 1rem; top: 1rem; }

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}
.container--narrow { max-width: 48rem; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 253, 249, 0.95);
  border-bottom: 1px solid rgba(235, 227, 212, 0.6);
  backdrop-filter: blur(8px);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  max-width: var(--max-width);
  margin: 0 auto;
}
.site-logo img { height: 2.5rem; width: auto; }
.nav-desktop { display: none; gap: 0.25rem; list-style: none; margin: 0; padding: 0; }
.nav-desktop a {
  display: inline-flex;
  align-items: center;
  min-height: 3rem;
  padding: 0.75rem 1rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--bauz-radius);
}
.nav-desktop a:hover { background: var(--bauz-parchment); }
.menu-toggle {
  min-height: 3rem;
  min-width: 3rem;
  font-size: 1.25rem;
  font-weight: 600;
  border: 2px solid var(--bauz-parchment-dark);
  background: var(--bauz-parchment);
  border-radius: var(--bauz-radius);
  cursor: pointer;
}
.nav-mobile {
  display: none;
  border-top: 1px solid var(--bauz-parchment-dark);
  background: var(--bauz-parchment);
  padding: 1rem 1.25rem;
}
.nav-mobile.is-open { display: block; }
.nav-mobile ul { list-style: none; margin: 0; padding: 0; }
.nav-mobile a {
  display: flex;
  align-items: center;
  min-height: 3.5rem;
  padding: 0 1rem;
  font-size: 1.125rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--bauz-radius);
}
@media (min-width: 768px) {
  .nav-desktop { display: flex; }
  .menu-toggle, .nav-mobile { display: none !important; }
}

/* Sections */
.section { padding: 3.5rem 0; }
.section--parchment { background: rgba(245, 239, 228, 0.5); }

h1, h2, h3 { line-height: 1.2; margin: 0 0 1rem; }
h1 { font-size: clamp(2rem, 5vw, 2.75rem); }
h2 { font-size: clamp(1.5rem, 4vw, 1.875rem); }
.lead { font-size: 1.125rem; color: var(--bauz-anthracite-soft); max-width: 36rem; }
.text-soft { color: var(--bauz-anthracite-soft); }
.text-center { text-align: center; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.75rem 1.5rem;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border: none;
  border-radius: var(--bauz-radius);
  cursor: pointer;
  transition: background 0.2s;
}
.btn--lg { min-height: 3.5rem; padding: 1rem 2rem; font-size: 1.125rem; }
.btn--primary { background: var(--bauz-red); color: #fff; box-shadow: var(--bauz-shadow); }
.btn--primary:hover { background: var(--bauz-red-hover); }
.btn--secondary { background: var(--bauz-parchment); color: var(--bauz-anthracite); border: 2px solid var(--bauz-parchment-dark); }
.btn--secondary:hover { background: var(--bauz-parchment-dark); }
.btn--discover { background: var(--bauz-blue); color: #fff; box-shadow: var(--bauz-shadow); }
.btn--discover:hover { background: var(--bauz-blue-hover); }
.btn--ghost { background: transparent; color: var(--bauz-anthracite); }
.btn--ghost:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-row { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 1.5rem; }

/* Card */
.card {
  background: var(--bauz-parchment);
  border-radius: var(--bauz-radius-lg);
  padding: 1.5rem;
  box-shadow: var(--bauz-shadow);
}
@media (min-width: 768px) { .card { padding: 2rem; } }

.badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: 999px;
  background: rgba(74, 127, 181, 0.15);
  color: var(--bauz-blue);
}

/* Hero */
.hero { display: grid; gap: 2.5rem; align-items: center; }
.hero__image { max-width: 22rem; margin: 0 auto; }
@media (min-width: 768px) {
  .hero { grid-template-columns: 1fr 1fr; }
  .hero--reverse .hero__image { order: 2; }
}

.grid-3 { display: grid; gap: 1.5rem; }
.grid-2 { display: grid; gap: 2rem; }
@media (min-width: 768px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
}

/* Book card */
.book-card { display: flex; flex-direction: column; gap: 1.5rem; }
.book-card__cover { border-radius: var(--bauz-radius); overflow: hidden; max-width: 12rem; margin: 0 auto; }
@media (min-width: 768px) {
  .book-card { flex-direction: row; align-items: center; text-align: left; }
  .book-card__cover { margin: 0; flex-shrink: 0; width: 12rem; }
}

/* Accordion */
.search-input {
  width: 100%;
  max-width: 16rem;
  min-height: 3.5rem;
  padding: 0 1.25rem;
  font-size: 1.125rem;
  font-family: inherit;
  border: 2px solid var(--bauz-parchment-dark);
  border-radius: var(--bauz-radius);
  margin-bottom: 2rem;
}
.search-input:focus { outline: none; border-color: var(--bauz-blue); }

.accordion { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 1rem; }
.accordion__item {
  background: var(--bauz-white);
  border: 2px solid var(--bauz-parchment-dark);
  border-radius: var(--bauz-radius-lg);
  box-shadow: var(--bauz-shadow);
  overflow: hidden;
}
.accordion__item.is-hidden { display: none; }
.accordion__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 4rem;
  padding: 1.25rem;
  text-align: left;
  font-family: inherit;
  font-size: 1.125rem;
  font-weight: 700;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--bauz-anthracite);
}
.accordion__trigger:hover { background: rgba(245, 239, 228, 0.5); }
.accordion__page {
  display: inline-flex;
  min-width: 4.5rem;
  justify-content: center;
  padding: 0.25rem 0.75rem;
  font-size: 0.875rem;
  font-weight: 700;
  border-radius: 999px;
  background: rgba(74, 127, 181, 0.15);
  color: var(--bauz-blue);
  margin-right: 0.5rem;
}
.accordion__icon { color: var(--bauz-blue); transition: transform 0.2s; }
.accordion__item.is-open .accordion__icon { transform: rotate(180deg); }
.accordion__panel {
  display: none;
  padding: 0 1.25rem 1.5rem;
  border-top: 1px solid var(--bauz-parchment-dark);
  color: var(--bauz-anthracite-soft);
  font-size: 1.125rem;
}
.accordion__item.is-open .accordion__panel { display: block; padding-top: 0.5rem; }

/* Newsletter */
.newsletter-form { display: flex; flex-direction: column; gap: 1rem; max-width: 32rem; margin: 0 auto; }
.newsletter-form__row { display: flex; flex-direction: column; gap: 0.75rem; }
@media (min-width: 640px) {
  .newsletter-form__row { flex-direction: row; }
  .newsletter-form__row input { flex: 1; }
}
.newsletter-form input[type="email"] {
  min-height: 3.5rem;
  padding: 0 1.25rem;
  font-size: 1.125rem;
  font-family: inherit;
  border: 2px solid var(--bauz-parchment-dark);
  border-radius: var(--bauz-radius);
}
.newsletter-form input:focus { outline: none; border-color: var(--bauz-blue); }
.form-status { font-weight: 600; text-align: center; }
.form-status--ok { color: var(--bauz-green); }
.form-status--err { color: var(--bauz-red); }

.affiliate-card__img {
  aspect-ratio: 4/3;
  object-fit: cover;
  width: 100%;
  border-radius: var(--bauz-radius);
  background: var(--bauz-parchment-dark);
}

/* Footer */
.site-footer {
  border-top: 1px solid rgba(235, 227, 212, 0.6);
  background: rgba(245, 239, 228, 0.4);
  padding: 2.5rem 0;
  margin-top: 2rem;
}
.site-footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  text-align: center;
}
.site-footer nav ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem 2rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.site-footer nav a {
  font-weight: 500;
  color: var(--bauz-anthracite-soft);
  text-decoration: none;
}
.site-footer nav a:hover { color: var(--bauz-anthracite); text-decoration: underline; }
.site-footer__copy { font-size: 0.875rem; color: var(--bauz-anthracite-soft); margin: 0; }
@media (min-width: 768px) {
  .site-footer__inner { flex-direction: row; justify-content: space-between; text-align: left; }
}

:focus-visible { outline: 3px solid var(--bauz-blue); outline-offset: 3px; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}