/* =========================================================
   LAYOUT — cabeçalho fino, navegação de capítulos, rodapé
   ========================================================= */

/* ---------- Loader ---------- */

.loader {
  position: fixed;
  inset: 0;
  z-index: var(--z-loader);
  background: var(--c-dark);
  display: grid;
  place-items: center;
  transition:
    opacity var(--dur-slow) var(--ease-in-out),
    visibility var(--dur-slow) linear;
}

.loader.is-done {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader__bar {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  overflow: hidden;
}

.loader__bar__fill {
  height: 100%;
  width: 100%;
  background: var(--c-gold);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--dur-normal) linear;
}

.loader__mark {
  display: grid;
  justify-items: center;
  gap: 0.75rem;
  text-align: center;
}

.loader__name {
  font-family: var(--font-display);
  font-weight: 600;
  text-transform: uppercase;
  font-size: var(--text-2xl);
  letter-spacing: var(--tracking-display);
  color: var(--c-cream);
}

.loader__percent {
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide);
  color: var(--c-gold);
  font-variant-numeric: tabular-nums;
}

/* ---------- Cursor ---------- */

.cursor {
  position: fixed;
  top: 0;
  left: 0;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--c-cream);
  mix-blend-mode: exclusion;
  pointer-events: none;
  z-index: var(--z-cursor);
  opacity: 0;
  transform: translate3d(-50%, -50%, 0);
  transition:
    width var(--dur-fast) var(--ease-out),
    height var(--dur-fast) var(--ease-out),
    opacity var(--dur-fast) linear;
}

.cursor.is-active {
  opacity: 1;
}

.cursor.is-hover {
  width: 56px;
  height: 56px;
}

@media (hover: none), (pointer: coarse) {
  .cursor {
    display: none;
  }
}

/* ---------- Cabeçalho ---------- */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-header);
  transition: transform var(--dur-normal) var(--ease-out);
}

.site-header.is-hidden {
  transform: translateY(-100%);
}

.info-bar {
  background: var(--c-dark);
  border-bottom: 1px solid var(--c-line);
}

.info-bar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  min-height: 2rem;
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--c-text-mute);
}

.info-bar__meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.info-bar__meta span {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  white-space: nowrap;
}

.info-bar__meta svg {
  width: 12px;
  height: 12px;
  opacity: 0.6;
}

.info-bar__link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--c-gold);
  white-space: nowrap;
  transition: opacity var(--dur-fast) var(--ease-out);
}

.info-bar__link:hover {
  opacity: 0.65;
}

.dot-sep {
  width: 2px;
  height: 2px;
  background: currentColor;
  opacity: 0.5;
  flex-shrink: 0;
}

.header-bar {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  min-height: 4.25rem;
  background: linear-gradient(to bottom, rgba(11, 9, 10, 0.85), transparent);
  backdrop-filter: blur(var(--blur-sm));
  transition: background var(--dur-normal) var(--ease-out);
}

.site-header.is-stuck .header-bar {
  background: rgba(11, 9, 10, 0.94);
  backdrop-filter: blur(var(--blur-md));
}

.brand {
  display: grid;
  gap: 0.1rem;
  flex-shrink: 0;
}

.brand__name {
  font-family: var(--font-display);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 1.05rem;
  letter-spacing: 0.04em;
  color: var(--c-gold);
  line-height: 1;
}

.brand__role {
  font-size: 0.625rem;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--c-text-mute);
}

.header-nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.header-nav__link {
  position: relative;
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--c-text-soft);
  padding-block: 0.4rem;
  transition: color var(--dur-fast) var(--ease-out);
}

.header-nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: var(--c-gold);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform var(--dur-normal) var(--ease-in-out);
}

.header-nav__link:hover,
.header-nav__link[aria-current="page"] {
  color: var(--c-cream);
}

.header-nav__link:hover::after,
.header-nav__link[aria-current="page"]::after {
  transform: scaleX(1);
}

.header-cta {
  flex-shrink: 0;
}

.nav-toggle {
  display: none;
  width: 2.5rem;
  height: 2.5rem;
  margin-left: auto;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  color: var(--c-cream);
}

.nav-toggle__bar {
  display: block;
  width: 20px;
  height: 1px;
  background: currentColor;
  transition: transform var(--dur-normal) var(--ease-in-out), opacity var(--dur-fast) linear;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
  transform: translateY(6px) 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(-6px) rotate(-45deg);
}

/* ---------- Painel de navegação ---------- */

.nav-panel {
  position: fixed;
  inset: 0;
  z-index: var(--z-nav-panel);
  background: var(--c-dark);
  padding: 7rem var(--gutter) var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  clip-path: inset(0 0 100% 0);
  visibility: hidden;
  transition:
    clip-path var(--dur-normal) var(--ease-in-out),
    visibility var(--dur-normal) linear;
  overflow-y: auto;
}

.nav-panel.is-open {
  clip-path: inset(0 0 0 0);
  visibility: visible;
}

.nav-panel__list {
  display: flex;
  flex-direction: column;
}

.nav-panel__list a {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-sm);
  padding-block: var(--space-sm);
  border-bottom: 1px solid var(--c-line);
  font-family: var(--font-display);
  font-weight: 600;
  text-transform: uppercase;
  font-size: var(--text-2xl);
  letter-spacing: var(--tracking-display);
  transition: color var(--dur-fast) var(--ease-out);
}

.nav-panel__list a:hover {
  color: var(--c-gold);
}

.nav-panel__list a span {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide);
  color: var(--c-text-mute);
}

.nav-panel__foot {
  margin-top: auto;
  display: grid;
  gap: var(--space-sm);
  color: var(--c-text-soft);
  font-size: var(--text-sm);
}

/* ---------- Navegação de capítulos (lateral) ---------- */

.chapter-nav {
  position: fixed;
  right: var(--gutter);
  top: 50%;
  transform: translateY(-50%);
  z-index: 70;
  display: grid;
  gap: 0.9rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur-normal) var(--ease-out);
}

.chapter-nav.is-visible {
  opacity: 1;
  pointer-events: auto;
}

.chapter-nav__item {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.6rem;
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--c-text-mute);
  transition: color var(--dur-fast) var(--ease-out);
}

.chapter-nav__item span {
  opacity: 0;
  transform: translateX(6px);
  transition:
    opacity var(--dur-fast) var(--ease-out),
    transform var(--dur-fast) var(--ease-out);
}

.chapter-nav__item::after {
  content: "";
  width: 1.75rem;
  height: 1px;
  background: currentColor;
  transition: width var(--dur-normal) var(--ease-in-out);
}

.chapter-nav__item:hover,
.chapter-nav__item.is-active {
  color: var(--c-gold);
}

.chapter-nav__item:hover span,
.chapter-nav__item.is-active span {
  opacity: 1;
  transform: none;
}

.chapter-nav__item.is-active::after {
  width: 3rem;
}

/* ---------- CTA fixo no mobile ---------- */

.sticky-cta {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: var(--z-header);
  display: none;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  padding: 0.75rem var(--gutter) calc(0.75rem + env(safe-area-inset-bottom));
  background: rgba(11, 9, 10, 0.95);
  backdrop-filter: blur(var(--blur-md));
  border-top: 1px solid var(--c-line);
  transform: translateY(140%);
  transition: transform var(--dur-normal) var(--ease-out);
}

.sticky-cta.is-visible {
  transform: none;
}

.sticky-cta__price {
  display: grid;
  gap: 0.1rem;
}

.sticky-cta__price strong {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-lg);
  border: 0;
}

.sticky-cta__price span {
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--c-text-mute);
}

/* ---------- Rodapé ---------- */

.site-footer {
  background: var(--c-dark);
  border-top: 1px solid var(--c-line);
  padding-block: var(--space-xl) var(--space-lg);
}

.footer-top {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-xl);
  align-items: center;
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--c-line);
}

.footer-brand {
  display: block;
  font-family: var(--font-display);
  font-weight: 600;
  text-transform: uppercase;
  font-size: var(--text-2xl);
  letter-spacing: var(--tracking-display);
  color: var(--c-gold);
  margin-bottom: var(--space-xs);
}

.footer-tagline {
  color: var(--c-text-soft);
  max-width: 34ch;
}

.footer-nav {
  display: grid;
  gap: 0.6rem;
  font-size: var(--text-sm);
}

.footer-nav strong {
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--c-text-mute);
  border: 0;
  margin-bottom: 0.3rem;
}

.footer-nav a {
  color: var(--c-text-soft);
  transition: color var(--dur-fast) var(--ease-out);
}

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

.footer-disclaimer {
  padding-block: var(--space-lg);
  color: var(--c-text-mute);
  font-size: var(--text-sm);
  max-width: 66ch;
}

/* Assinatura tipográfica: frase partida em duas linhas gigantes. */
.footer-wordmark {
  display: grid;
  gap: 0;
  padding-block: var(--space-lg);
  border-top: 1px solid var(--c-line);
  font-family: var(--font-display);
  font-weight: 600;
  text-transform: uppercase;
  font-size: var(--text-huge);
  line-height: 0.86;
  letter-spacing: var(--tracking-display);
  color: var(--c-cream);
  user-select: none;
}

.footer-wordmark span:last-child {
  justify-self: end;
  color: var(--c-gold);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm) var(--space-md);
  justify-content: space-between;
  padding-top: var(--space-md);
  border-top: 1px solid var(--c-line);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--c-text-mute);
}

/* ---------- Responsivo ---------- */

@media (max-width: 62rem) {
  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
  .footer-top .cta {
    grid-column: 1 / -1;
    justify-self: start;
  }
  .chapter-nav {
    display: none;
  }
}

@media (max-width: 52rem) {
  .header-nav {
    display: none;
  }
  .nav-toggle {
    display: flex;
  }
  .header-bar .header-cta {
    display: none;
  }
  .sticky-cta {
    display: flex;
  }
  .info-bar__meta {
    display: none;
  }
  .info-bar__inner {
    justify-content: center;
  }
  body:has(.sticky-cta) {
    padding-bottom: 4.5rem;
  }
}

@media (max-width: 40rem) {
  .footer-top {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
  .footer-wordmark span:last-child {
    justify-self: start;
  }
}