/* ========================
   NAVIGATION
   ======================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-nav);
  background-color: rgba(10, 10, 20, 0.85);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  transition: background-color var(--transition-normal);
  padding: var(--sp-md) 0;
}

.site-header.is-scrolled {
  background-color: rgba(10, 10, 20, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: var(--shadow-nav);
}

[data-theme="light"] .site-header {
  background-color: rgba(245, 243, 239, 0.85);
}

[data-theme="light"] .site-header.is-scrolled {
  background-color: rgba(245, 243, 239, 0.95);
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--sp-sm);
  max-width: var(--max-w-content);
  margin-inline: auto;
  padding-inline: var(--sp-lg);
}

.nav__logo {
  font-family: var(--font-heading);
  font-size: var(--fs-lg);
  font-weight: var(--fw-bold);
  color: var(--color-text-heading);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}

.nav__logo:hover,
.nav__logo:focus-visible {
  color: var(--color-accent);
}

/* Hide toggle when JS is not available */
.nav__toggle {
  display: none;
}

/* Show toggle only when JS is enabled (below desktop breakpoint) */
.js-enabled .nav__toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 6px;
  width: 44px;
  height: 44px;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: var(--sp-sm);
  flex-shrink: 0;
}

.js-enabled .nav__toggle:hover,
.js-enabled .nav__toggle:focus-visible {
  border-color: var(--color-accent);
}

.nav__toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--color-text-heading);
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* Without JS: show menu as a simple horizontal wrap list */
.nav__menu {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-sm);
  padding: var(--sp-md) 0;
  list-style: none;
}

/* With JS: enable slide-in drawer behavior */
.js-enabled .nav__menu {
  position: fixed;
  top: 0;
  right: 0;
  width: min(80vw, 320px);
  height: 100vh;
  height: 100dvh;
  background-color: var(--color-bg-menu, #1a1a3a);
  border-left: 2px solid var(--color-accent);
  padding: var(--sp-4xl) var(--sp-xl) var(--sp-xl);
  gap: var(--sp-xs);
  flex-direction: column;
  flex-wrap: nowrap;
  transform: translateX(100%);
  transition: transform var(--transition-normal);
  z-index: var(--z-menu);
  box-shadow: -8px 0 32px rgba(0, 0, 0, 0.7);
  overflow-y: auto;
}

.js-enabled .nav__menu.is-open {
  transform: translateX(0);
}

/* Drawer links: larger touch targets, visible text */
.js-enabled .nav__menu .nav__link {
  padding: var(--sp-md) var(--sp-lg);
  font-size: var(--fs-lg);
  color: var(--color-text-menu);
  border-bottom: 1px solid var(--color-border);
}

.js-enabled .nav__menu .nav__link:last-child {
  border-bottom: none;
}

.js-enabled .nav__menu .nav__link--lang {
  margin-top: var(--sp-md);
  align-self: flex-start;
  font-size: var(--fs-sm);
  border-bottom: none;
  border: 1px solid var(--color-border);
}

.nav__overlay {
  position: fixed;
  inset: 0;
  background-color: var(--color-overlay);
  z-index: calc(var(--z-menu) - 1);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.nav__overlay.is-visible {
  opacity: 1;
  visibility: visible;
}

.nav__link {
  display: block;
  padding: var(--sp-sm) var(--sp-md);
  font-size: var(--fs-md);
  color: var(--color-text-primary);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.nav__link:hover,
.nav__link:focus-visible {
  background-color: var(--color-accent-subtle);
  color: var(--color-accent);
}

.nav__link[aria-current="page"] {
  color: var(--color-accent);
  background-color: var(--color-accent-subtle);
}

.nav__link--lang {
  font-weight: var(--fw-bold);
  font-size: var(--fs-xs);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--sp-xs) var(--sp-sm);
  min-width: 36px;
  text-align: center;
}

.nav__link--lang:hover,
.nav__link--lang:focus-visible {
  border-color: var(--color-accent);
}

/* ========================
   THEME TOGGLE
   ======================== */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  cursor: pointer;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
  flex-shrink: 0;
  margin-left: auto;
}

.theme-toggle:hover,
.theme-toggle:focus-visible {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.theme-toggle svg {
  width: 20px;
  height: 20px;
}

/* Hide moon icon by default (dark theme), show sun */
.theme-toggle__sun {
  display: block;
}

.theme-toggle__moon {
  display: none;
}

/* In light theme, show moon icon, hide sun */
[data-theme="light"] .theme-toggle__sun {
  display: none;
}

[data-theme="light"] .theme-toggle__moon {
  display: block;
}

/* ========================
   BUTTONS
   ======================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-sm);
  padding: 0.75em 1.75em;
  font-family: var(--font-heading);
  font-size: var(--fs-sm);
  font-weight: var(--fw-bold);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  min-height: 44px;
  text-align: center;
}

.btn--primary {
  background-color: var(--color-accent);
  color: var(--color-bg-primary);
  border-color: var(--color-accent);
}

.btn--primary:hover,
.btn--primary:focus-visible {
  background-color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: var(--color-bg-primary);
}

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

.btn--secondary:hover,
.btn--secondary:focus-visible {
  background-color: var(--color-accent);
  color: var(--color-bg-primary);
}

.btn--ghost {
  background-color: transparent;
  color: var(--color-text-primary);
  border-color: var(--color-text-secondary);
}

.btn--ghost:hover,
.btn--ghost:focus-visible {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-md);
  justify-content: center;
}

/* ========================
   HERO
   ======================== */
.hero__content {
  position: relative;
  z-index: 1;
}

.hero__title {
  margin-bottom: var(--sp-lg);
}

.hero__tagline {
  font-size: var(--fs-md);
  color: var(--color-text-secondary);
  margin-bottom: var(--sp-sm);
}

.hero__book-title {
  font-family: var(--font-heading);
  font-size: var(--fs-xl);
  color: var(--color-accent);
  margin-bottom: var(--sp-2xl);
}

.hero__scroll {
  position: absolute;
  bottom: var(--sp-xl);
  left: 50%;
  transform: translateX(-50%);
  color: var(--color-text-muted);
  font-size: var(--fs-sm);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-sm);
}

.hero__scroll-arrow {
  width: 20px;
  height: 20px;
  border-right: 2px solid var(--color-text-muted);
  border-bottom: 2px solid var(--color-text-muted);
  transform: rotate(45deg);
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: rotate(45deg) translateY(0); }
  40% { transform: rotate(45deg) translateY(6px); }
  60% { transform: rotate(45deg) translateY(3px); }
}

/* ========================
   ICONS (inline SVG)
   ======================== */
.icon {
  width: 1.25em;
  height: 1.25em;
  fill: currentColor;
  vertical-align: middle;
  flex-shrink: 0;
}

/* ========================
   BOOK CARDS
   ======================== */
.book-card {
  display: flex;
  flex-direction: column;
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.book-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.book-card__image {
  aspect-ratio: 2/3;
  overflow: hidden;
  background-color: var(--color-bg-secondary);
}

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

.book-card__content {
  padding: var(--sp-lg);
  flex: 1;
}

.book-card__label {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: var(--sp-sm);
}

.book-card__title {
  font-size: var(--fs-xl);
  margin-bottom: var(--sp-md);
}

.book-card__text {
  color: var(--color-text-secondary);
  font-size: var(--fs-sm);
  line-height: var(--lh-loose);
}

/* ========================
   TEAM CARDS
   ======================== */
.team-card {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--sp-xl);
  transition: border-color var(--transition-normal);
}

.team-card:hover {
  border-color: var(--color-border-accent);
}

.team-card__name {
  font-size: var(--fs-xl);
  margin-bottom: var(--sp-xs);
}

.team-card__role {
  font-size: var(--fs-sm);
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--sp-md);
}

.team-card__bio {
  color: var(--color-text-secondary);
  font-size: var(--fs-sm);
  line-height: var(--lh-loose);
  margin-bottom: var(--sp-md);
}

.team-card__quote {
  border-left: 3px solid var(--color-accent);
  padding-left: var(--sp-md);
  font-style: italic;
  color: var(--color-text-muted);
  font-size: var(--fs-sm);
}

.team-card__link {
  display: inline-block;
  font-size: var(--fs-sm);
  margin-bottom: var(--sp-md);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ========================
   GALLERY
   ======================== */
.gallery-section {
  margin-bottom: var(--sp-2xl);
}

.gallery-section__title {
  font-size: var(--fs-lg);
  margin-bottom: var(--sp-lg);
  padding-bottom: var(--sp-sm);
  border-bottom: 1px solid var(--color-border);
}

.gallery-item {
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
}

.gallery-item img {
  width: 100%;
  height: auto;
}

/* ========================
   STAT CARD
   ======================== */
.stat-card {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--sp-lg);
  text-align: center;
}

.stat-card__value {
  font-family: var(--font-heading);
  font-size: var(--fs-2xl);
  font-weight: var(--fw-bold);
  color: var(--color-accent);
  display: block;
}

.stat-card__label {
  font-size: var(--fs-sm);
  color: var(--color-text-secondary);
  margin-top: var(--sp-xs);
}

/* ========================
   TIMELINE
   ======================== */
.timeline {
  position: relative;
  padding-left: var(--sp-xl);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background-color: var(--color-border);
}

.timeline__item {
  position: relative;
  padding-bottom: var(--sp-xl);
}

.timeline__item::before {
  content: '';
  position: absolute;
  left: calc(-1 * var(--sp-xl) - 4px);
  top: 6px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--color-accent);
  border: 2px solid var(--color-bg-primary);
}

.timeline__year {
  font-family: var(--font-heading);
  font-weight: var(--fw-bold);
  color: var(--color-accent);
  font-size: var(--fs-sm);
  margin-bottom: var(--sp-xs);
}

.timeline__text {
  color: var(--color-text-secondary);
  font-size: var(--fs-sm);
}

/* ========================
   EXCERPT (prose)
   ======================== */
.prose {
  max-width: var(--max-w-text);
  margin-inline: auto;
  font-size: var(--fs-md);
  line-height: var(--lh-loose);
}

.prose p {
  margin-bottom: var(--sp-lg);
  text-align: justify;
  text-indent: 2em;
}

.prose p:first-of-type {
  text-indent: 0;
}

.prose .epigraph {
  text-align: right;
  font-style: italic;
  text-indent: 0;
  margin-bottom: var(--sp-lg);
}

.prose .epigraph-author {
  text-align: right;
  font-weight: var(--fw-bold);
  font-style: normal;
  text-indent: 0;
  margin-bottom: var(--sp-2xl);
}

.prose .chapter-title {
  text-align: center;
  font-family: var(--font-heading);
  font-size: var(--fs-lg);
  font-weight: var(--fw-bold);
  text-indent: 0;
  padding: var(--sp-lg) 0;
}

/* ========================
   FOOTER
   ======================== */
.site-footer {
  background-color: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  padding: var(--sp-2xl) 0;
  text-align: center;
}

.footer__social {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--sp-md);
  margin-bottom: var(--sp-xl);
}

.footer__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}

.footer__social-link:hover,
.footer__social-link:focus-visible {
  color: var(--color-accent);
  border-color: var(--color-accent);
  background-color: var(--color-accent-subtle);
}

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

.footer__links {
  display: flex;
  justify-content: center;
  gap: var(--sp-lg);
  margin-bottom: var(--sp-md);
}

.footer__link {
  font-size: var(--fs-sm);
  color: var(--color-text-secondary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.footer__link:hover,
.footer__link:focus-visible {
  color: var(--color-accent);
}

.footer__copy {
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
}

/* ========================
   PAGE HEADER CTA
   ======================== */
.page-header .btn-group {
  margin-top: var(--sp-xl);
}

/* ========================
   CONTENT SECTIONS (coulisses)
   ======================== */
.content-block {
  margin-bottom: var(--sp-2xl);
}

.content-block__title {
  font-size: var(--fs-xl);
  margin-bottom: var(--sp-md);
  color: var(--color-accent);
}

.content-block__subtitle {
  font-size: var(--fs-lg);
  margin-bottom: var(--sp-md);
  margin-top: var(--sp-xl);
}

.content-block p {
  color: var(--color-text-secondary);
  line-height: var(--lh-loose);
  text-align: justify;
}

/* ========================
   BOOK INFO (livre page)
   ======================== */
.book-info__description {
  max-width: var(--max-w-text);
  margin-inline: auto;
}

.book-info__description p {
  text-align: justify;
  line-height: var(--lh-loose);
  color: var(--color-text-secondary);
}

.book-price {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-md);
  justify-content: center;
  margin: var(--sp-xl) 0;
}

.book-price__item {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--sp-md) var(--sp-xl);
  text-align: center;
}

.book-price__amount {
  font-family: var(--font-heading);
  font-size: var(--fs-2xl);
  font-weight: var(--fw-bold);
  color: var(--color-accent);
}

.book-price__format {
  font-size: var(--fs-sm);
  color: var(--color-text-secondary);
}

.book-price__link {
  text-decoration: none;
  transition: border-color var(--transition-fast), transform var(--transition-fast);
}

.book-price__link:hover,
.book-price__link:focus-visible {
  border-color: var(--color-accent);
  transform: translateY(-2px);
}