/* ==========================================================================
   Roteqse - nav.css
   Header, navegação principal, mega menu de Produtos, menu mobile
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 900;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.header__bar {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  padding-block: 0.75rem;
}

.header__logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-right: auto;
}

.header__logo img,
.header__logo svg {
  height: 36px;
  width: auto;
}

/* --- Nav principal (desktop) --- */
.main-nav {
  display: flex;
}

.main-nav__list {
  display: flex;
  align-items: stretch;
  gap: 0.25rem;
}

.main-nav__item {
  position: relative;
}

.main-nav__link {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  height: 100%;
  padding: 1.1rem 0.85rem;
  color: var(--color-primary);
  font-weight: 600;
  font-size: 0.92rem;
  white-space: nowrap;
  background: none;
  border: none;
  cursor: pointer;
}

.main-nav__link:hover,
.main-nav__link[aria-expanded="true"] {
  color: var(--color-accent-dark);
  text-decoration: none;
}

.main-nav__link .chevron {
  width: 10px;
  height: 10px;
  transition: transform var(--transition-fast);
}

.main-nav__link[aria-expanded="true"] .chevron {
  transform: rotate(180deg);
}

.main-nav__link--store {
  background: var(--color-cta);
  color: var(--color-primary);
  border-radius: var(--radius);
  padding: 0.6rem 1rem;
  margin-left: 0.25rem;
}

.main-nav__link--store:hover {
  background: var(--color-cta-dark);
  color: var(--color-primary);
}

/* --- Painel de dropdown simples --- */
.dropdown-panel {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 240px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 0 0 var(--radius) var(--radius);
  box-shadow: var(--shadow-md);
  padding: 0.5rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
}

.main-nav__item--open > .dropdown-panel,
.main-nav__item--open > .mega-panel {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-panel a {
  display: block;
  padding: 0.6rem 0.75rem;
  border-radius: var(--radius);
  color: var(--color-body);
  font-size: 0.92rem;
}

.dropdown-panel a:hover {
  background: var(--color-surface-alt);
  color: var(--color-accent-dark);
  text-decoration: none;
}

/* --- Mega menu de Produtos (2 colunas em cascata) --- */
.mega-panel {
  position: absolute;
  top: 100%;
  left: 0;
  display: flex;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 0 0 var(--radius) var(--radius);
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
}

.mega-panel__col {
  min-width: 260px;
  padding: 0.75rem;
}

.mega-panel__col + .mega-panel__col {
  border-left: 1px solid var(--color-border);
  min-width: 280px;
  display: none;
}

.mega-panel__col--active {
  display: block;
}

.mega-item {
  position: relative;
}

.mega-item__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.65rem 0.75rem;
  border-radius: var(--radius);
  color: var(--color-body);
  font-size: 0.92rem;
  background: none;
  border: none;
  width: 100%;
  text-align: left;
  cursor: pointer;
}

.mega-item__link:hover,
.mega-item--active > .mega-item__link {
  background: var(--color-surface-alt);
  color: var(--color-accent-dark);
  text-decoration: none;
}

.mega-item__arrow {
  width: 8px;
  height: 8px;
  border-top: 2px solid currentColor;
  border-right: 2px solid currentColor;
  transform: rotate(45deg);
  opacity: 0.6;
  flex-shrink: 0;
}

.mega-panel__col-title {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-muted);
  padding: 0.4rem 0.75rem;
  margin: 0;
}

/* --- Seletor de idioma --- */
.lang-switcher {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.85rem;
  font-weight: 700;
  margin-left: var(--space-sm);
}

.lang-switcher a {
  color: var(--color-muted);
  padding: 0.25rem 0.35rem;
}

.lang-switcher a[aria-current="true"] {
  color: var(--color-primary);
  text-decoration: underline;
}

.lang-switcher span {
  color: var(--color-border);
}

/* --- Botão hambúrguer (mobile) --- */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-primary);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}