/* ═══════════════════════════════════════════
   HEADER / NAVIGATION
   ═══════════════════════════════════════════ */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-nav);
  transition: background-color var(--duration-normal) var(--ease-out),
              backdrop-filter var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
}

.header-shell {
  position: relative;
  width: 100%;
}

.site-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.35) 0%, transparent 100%);
  pointer-events: none;
  transition: opacity var(--duration-normal) var(--ease-out);
}

.site-header.is-scrolled::before {
  opacity: 0;
}

.site-header.is-scrolled {
  background-color: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.05);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-2xl);
  margin: 0 auto;
  padding: var(--space-4) var(--container-padding);
  position: relative;
  z-index: 2;
  transition: padding var(--duration-normal) var(--ease-out);
}

.site-header.is-scrolled .header-inner {
  padding-top: var(--space-3);
  padding-bottom: var(--space-3);
}

/* ─── Logo ─── */
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-weight: var(--weight-bold);
  font-size: var(--text-xl);
  color: var(--color-white);
  letter-spacing: var(--tracking-tight);
  transition: color var(--duration-normal) var(--ease-out);
  text-decoration: none;
}

.logo-icon {
  width: 32px;
  height: 32px;
}

.logo-mark {
  font-weight: var(--weight-semibold);
  opacity: 0.55;
  font-size: 0.85em;
  margin-left: 2px;
}

.site-header.is-scrolled .logo {
  color: var(--color-gray-900);
}

/* ─── Nav ─── */
.main-nav {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.nav-link {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: rgba(255, 255, 255, 0.85);
  transition: color var(--duration-fast) var(--ease-out);
  position: relative;
  padding: var(--space-1) 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: currentColor;
  transition: width var(--duration-normal) var(--ease-out);
}

.nav-link:hover::after {
  width: 100%;
}

.nav-link:hover {
  color: var(--color-white);
}

.site-header.is-scrolled .nav-link {
  color: var(--color-gray-500);
}

.site-header.is-scrolled .nav-link:hover {
  color: var(--color-gray-900);
}

/* ─── Mega menu trigger ─── */
.nav-item--mega {
  position: relative;
}

.nav-link--mega {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  border: none;
  background: none;
  font: inherit;
  cursor: pointer;
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: rgba(255, 255, 255, 0.85);
  padding: var(--space-1) 0;
  transition: color var(--duration-fast) var(--ease-out);
}

.nav-link--mega::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: currentColor;
  transition: width var(--duration-normal) var(--ease-out);
}

.nav-link--mega:hover::after,
.nav-item--mega:focus-within .nav-link--mega::after {
  width: 100%;
}

.nav-link--mega:hover {
  color: var(--color-white);
}

.site-header.is-scrolled .nav-link--mega {
  color: var(--color-gray-500);
}

.site-header.is-scrolled .nav-link--mega:hover {
  color: var(--color-gray-900);
}

.nav-link__chevron {
  flex-shrink: 0;
  opacity: 0.75;
  transition: transform var(--duration-fast) var(--ease-out);
}

.nav-link--mega[aria-expanded='true'] .nav-link__chevron {
  transform: rotate(180deg);
}

/* ─── Mega menu panel (abre via .is-mega-open em JS , evita zona morta entre trigger e painel) ─── */
.mega-menu {
  position: absolute;
  left: 50%;
  transform: translateX(-50%) translateY(-6px);
  width: 100vw;
  top: 100%;
  padding-top: var(--space-2);
  margin-top: calc(-1 * var(--space-2));
  background: var(--color-white);
  border-radius: 0 0 var(--radius-xl) var(--radius-xl);
  box-shadow: var(--shadow-2xl);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--duration-fast) var(--ease-out),
              visibility var(--duration-fast) var(--ease-out),
              transform var(--duration-fast) var(--ease-out);
  z-index: 3;
}

.mega-menu.is-active {
  z-index: 5;
}

.site-header.is-mega-open .mega-menu.is-active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.mega-menu__container {
  max-width: var(--container-2xl);
  margin: 0 auto;
  padding: var(--space-8) var(--container-padding) var(--space-10);
}

.mega-menu__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 42%);
  gap: var(--space-10);
  align-items: start;
}

@media (max-width: 1100px) {
  .mega-menu--verticals .mega-menu__grid:not(.mega-menu__grid--product) {
    grid-template-columns: 1fr;
  }

  .mega-menu--verticals .mega-menu__visual {
    display: none;
  }

  .mega-menu--product .mega-menu__grid--product {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .mega-menu--product .mega-menu__grid--product {
    grid-template-columns: 1fr;
  }
}

.mega-menu__grid--product {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-6) var(--space-8);
  align-items: start;
}

.product-mega__heading {
  margin: 0 0 var(--space-3);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-gray-500);
}

.product-mega__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.mega-menu--product .mega-menu__link {
  padding: var(--space-2) var(--space-3);
}

.mega-menu--product .mega-menu__item-desc {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.mega-menu__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.mega-menu__link {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: inherit;
  transition: background-color var(--duration-fast) var(--ease-out);
  border: 1px solid transparent;
}

.mega-menu__item-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  background: var(--color-accent-light);
  color: var(--color-accent);
}

.mega-menu__item-icon svg {
  width: 22px;
  height: 22px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.75;
}

.mega-menu__item-body {
  flex: 1;
  min-width: 0;
}

.mega-menu__link:hover,
.mega-menu__link:focus-visible {
  background: var(--color-gray-50);
  border-color: var(--color-gray-100);
  outline: none;
}

.mega-menu__item-title {
  display: block;
  font-family: var(--font-display);
  font-weight: var(--weight-semibold);
  font-size: var(--text-base);
  color: var(--color-gray-900);
  line-height: var(--leading-snug);
}

.mega-menu__item-desc {
  display: block;
  margin-top: var(--space-1);
  font-size: var(--text-sm);
  color: var(--color-gray-500);
  line-height: var(--leading-normal);
}

.mega-menu__visual {
  position: sticky;
  top: var(--space-4);
}

.mega-menu__visual-frame {
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--color-gray-100);
  aspect-ratio: 800 / 520;
  box-shadow: var(--shadow-lg);
}

.mega-menu__preview-img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity var(--duration-fast) var(--ease-out);
}

.mega-menu__preview-img.is-swapping {
  opacity: 0.65;
}

/* Mega menu verticais: coluna da foto na altura da lista + mesmas imagens do hero + véu premium */
.mega-menu--verticals .mega-menu__grid:not(.mega-menu__grid--product) {
  align-items: stretch;
}

.mega-menu--verticals .mega-menu__visual {
  position: relative;
  top: auto;
  display: flex;
  flex-direction: column;
  align-self: stretch;
  min-height: 0;
}

.mega-menu--verticals .mega-menu__visual-frame--verticals {
  position: relative;
  flex: 1 1 auto;
  min-height: 0;
  aspect-ratio: auto;
  height: 100%;
  background: var(--color-black);
  box-shadow: 0 24px 56px -24px rgba(0, 0, 0, 0.28);
}

.mega-menu--verticals .mega-menu__preview-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  object-position: center;
}

.mega-menu--verticals .mega-menu__visual-veil {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(0, 0, 0, 0.3) 0%, rgba(0, 0, 0, 0.06) 32%, rgba(0, 0, 0, 0.42) 72%, rgba(0, 0, 0, 0.82) 100%),
    linear-gradient(105deg, rgba(0, 0, 0, 0.58) 0%, rgba(0, 0, 0, 0.22) 38%, transparent 68%),
    rgba(0, 0, 0, 0.18);
}

/* ─── Header actions ─── */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.lang-switcher {
  position: relative;
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: rgba(255, 255, 255, 0.75);
  cursor: pointer;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-md);
  transition: color var(--duration-fast) var(--ease-out),
              background-color var(--duration-fast) var(--ease-out);
}

.lang-switcher:hover {
  color: var(--color-white);
  background: rgba(255,255,255,0.1);
}

.site-header.is-scrolled .lang-switcher {
  color: var(--color-gray-500);
}

.site-header.is-scrolled .lang-switcher:hover {
  color: var(--color-gray-900);
  background: var(--color-gray-50);
}

.lang-dropdown {
  position: absolute;
  top: calc(100% + var(--space-2));
  right: 0;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  padding: var(--space-2);
  min-width: 140px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: all var(--duration-fast) var(--ease-out);
  z-index: var(--z-modal);
}

.lang-switcher.is-open .lang-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-option {
  display: block;
  width: 100%;
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-gray-600);
  border-radius: var(--radius-md);
  transition: all var(--duration-fast) var(--ease-out);
  text-align: left;
}

.lang-option:hover,
.lang-option.is-active {
  background: var(--color-gray-50);
  color: var(--color-gray-900);
}

.lang-option.is-active {
  font-weight: var(--weight-semibold);
}

.btn-header {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-full);
  transition: all var(--duration-fast) var(--ease-out);
}

.btn-header--ghost {
  color: rgba(255, 255, 255, 0.85);
}

.btn-header--ghost:hover {
  color: var(--color-white);
}

.site-header.is-scrolled .btn-header--ghost {
  color: var(--color-gray-600);
}

.site-header.is-scrolled .btn-header--ghost:hover {
  color: var(--color-gray-900);
}

.btn-header--primary {
  background: var(--color-white);
  color: var(--color-gray-900);
}

.btn-header--primary:hover {
  background: var(--color-gray-100);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.site-header.is-scrolled .btn-header--primary {
  background: var(--color-accent);
  color: var(--color-white);
}

.site-header.is-scrolled .btn-header--primary:hover {
  background: var(--color-accent-hover);
}

/* ─── Mobile menu ─── */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 4px 0;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  height: 1.5px;
  background: var(--color-white);
  border-radius: 2px;
  transition: all var(--duration-normal) var(--ease-out);
}

.site-header.is-scrolled .menu-toggle span {
  background: var(--color-gray-900);
}

.menu-toggle.is-active span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.menu-toggle.is-active span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.menu-toggle.is-active span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* ─── Mobile nav overlay ─── */
.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(20px);
  z-index: calc(var(--z-nav) - 1);
  /* Cabeçalho fixo + notch; rodapé com área segura (home indicator) */
  padding-top: max(5.5rem, calc(env(safe-area-inset-top, 0px) + 4.25rem));
  padding-right: max(var(--container-padding), env(safe-area-inset-right, 0px));
  padding-bottom: max(var(--space-8), env(safe-area-inset-bottom, 0px));
  padding-left: max(var(--container-padding), env(safe-area-inset-left, 0px));
  flex-direction: column;
  gap: var(--space-6);
  opacity: 0;
  visibility: hidden;
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
  transition: opacity var(--duration-normal) var(--ease-out),
              visibility var(--duration-normal) var(--ease-out);
}

.mobile-nav.is-open {
  opacity: 1;
  visibility: visible;
}

.mobile-nav .nav-link {
  font-size: var(--text-2xl);
  color: var(--color-gray-900);
  display: block;
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-gray-100);
}

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

.mobile-nav__group-label {
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--color-gray-400);
  margin: var(--space-4) 0 var(--space-2);
  padding-top: var(--space-2);
  border-top: 1px solid var(--color-gray-100);
}

.mobile-nav .nav-link--sub {
  font-size: var(--text-lg);
  padding-left: var(--space-4);
  border-bottom-color: var(--color-gray-50);
}

.mobile-nav .mobile-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-top: auto;
  flex-shrink: 0;
}

.mobile-nav .btn-mobile {
  display: block;
  text-align: center;
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  font-weight: var(--weight-semibold);
  font-size: var(--text-lg);
}

.mobile-nav .btn-mobile--primary {
  background: var(--color-accent);
  color: var(--color-white);
}

.mobile-nav .btn-mobile--ghost {
  color: var(--color-gray-600);
}

@media (max-width: 1024px) {
  .nav-links,
  .header-actions .btn-header--ghost {
    display: none;
  }

  .mega-menu {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .mobile-nav {
    display: flex;
  }
}

@media (max-width: 640px) {
  .header-actions .btn-header--primary {
    display: none;
  }
}

/* Páginas de verticais: sombra leve sob o header fixo (separa nav do hero com foto) */
body[data-vertical-page] .site-header {
  box-shadow:
    0 1px 0 rgba(0, 0, 0, 0.07),
    0 12px 32px -8px rgba(0, 0, 0, 0.2);
}

body[data-vertical-page] .site-header.is-scrolled {
  box-shadow:
    0 1px 0 rgba(0, 0, 0, 0.06),
    0 8px 24px -10px rgba(0, 0, 0, 0.12);
}