.site-header {
  background-color: var(--color-bg-header);
  width: 100%;
}

/* ===== Barra superior: logo + busca + redes sociais ===== */
.site-header__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  min-height: var(--header-height-top);
  padding-block: var(--space-md);
}

.site-header__brand {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.site-header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-text-light);
  font-weight: var(--fw-bold);
  font-size: var(--fs-lg);
  line-height: 1.1;
  white-space: nowrap;
}

.site-header__logo svg {
  flex-shrink: 0;
  color: var(--color-accent);
}

.site-header__logo-text {
  display: flex;
  flex-direction: column;
}

.site-header__logo-line1 {
  color: var(--color-accent);
}

.site-header__logo-line2 {
  color: var(--color-text-light);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.05em;
}

.site-header__tagline {
  display: none;
  color: var(--color-text-muted);
  font-size: var(--fs-sm);
  font-weight: var(--fw-regular);
  border-left: 1px solid var(--color-bg-nav-border);
  padding-left: var(--space-md);
}

@media (min-width: 900px) {
  .site-header__tagline {
    display: block;
  }
}

.site-header__search {
  flex: 1;
  max-width: 420px;
  margin-inline: auto;
  display: none;
}

@media (min-width: 768px) {
  .site-header__search {
    display: flex;
  }
}

.site-header__search-form {
  display: flex;
  align-items: center;
  width: 100%;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--color-bg-nav-border);
  border-radius: var(--radius-md);
  padding-inline: var(--space-md);
}

.site-header__search-form input[type="search"] {
  flex: 1;
  height: 40px;
  color: var(--color-text-light);
  font-size: var(--fs-sm);
}

.site-header__search-form input[type="search"]::placeholder {
  color: var(--color-text-muted);
}

.site-header__search-form button {
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  transition: color var(--transition-fast);
}

.site-header__search-form button:hover {
  color: var(--color-text-light);
}

.site-header__socials {
  display: none;
  align-items: center;
  gap: var(--space-md);
  color: var(--color-text-light);
}

@media (min-width: 768px) {
  .site-header__socials {
    display: flex;
  }
}

.site-header__socials a {
  display: flex;
  align-items: center;
  opacity: 0.85;
  transition: opacity var(--transition-fast);
}

.site-header__socials a:hover {
  opacity: 1;
  color: var(--color-accent);
}

.site-header__toggle {
  display: flex;
  color: var(--color-text-light);
}

@media (min-width: 768px) {
  .site-header__toggle {
    display: none;
  }
}

/* ===== Barra de navegação ===== */
.site-header__nav {
  position: relative;
  border-top: 1px solid var(--color-bg-nav-border);
}

.main-nav {
  display: none;
  align-items: center;
  gap: var(--space-lg);
  min-height: var(--header-height-nav);
}

@media (min-width: 768px) {
  .main-nav {
    display: flex;
  }
}

.main-nav > ul {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.main-nav a {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  color: var(--color-text-light);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  letter-spacing: 0.02em;
  padding-block: var(--space-sm);
  border-bottom: 2px solid transparent;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.main-nav a:hover,
.main-nav .current-menu-item > a {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.main-nav li.menu-item-has-children {
  position: relative;
}

.main-nav li.menu-item-has-children > a svg {
  width: 12px;
  height: 12px;
  transition: transform var(--transition-fast);
}

.main-nav li.menu-item-has-children:hover > a svg {
  transform: rotate(180deg);
}

.main-nav .sub-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  background: var(--color-bg-header);
  border: 1px solid var(--color-bg-nav-border);
  border-radius: var(--radius-md);
  padding: var(--space-sm);
  opacity: 0;
  visibility: hidden;
  transform: translateY(4px);
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
  z-index: 20;
}

.main-nav li.menu-item-has-children:hover .sub-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.main-nav .sub-menu a {
  border-bottom: none;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
}

.main-nav .sub-menu a:hover {
  background: var(--color-accent-soft);
}

/* ===== Menu mobile ===== */
.main-nav.is-open {
  display: flex;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  flex-direction: column;
  align-items: stretch;
  background: var(--color-bg-header);
  border-top: 1px solid var(--color-bg-nav-border);
  padding: var(--space-md);
  z-index: 30;
}

.main-nav.is-open > ul {
  flex-direction: column;
  align-items: stretch;
  gap: 0;
}

.main-nav.is-open .sub-menu {
  position: static;
  opacity: 1;
  visibility: visible;
  transform: none;
  display: none;
  border: none;
  padding-left: var(--space-md);
}

.main-nav.is-open li.menu-item-has-children.is-expanded .sub-menu {
  display: block;
}