/* ============================================================
   HEADER.CSS — Topbar, Navbar e Menu Mobile
   ============================================================ */

/* ── Topbar ──────────────────────────────────────────────── */
.topbar {
  background: var(--color-dark);
  color: rgba(255,255,255,0.55);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  text-align: center;
  padding: 0.45rem 1rem;
}

.topbar a {
  color: var(--color-primary-light);
  text-decoration: none;
  transition: opacity var(--transition-fast);
}

.topbar a:hover {
  opacity: 0.75;
}

/* ── Header Principal ────────────────────────────────────── */
.site-header {
  background: var(--color-white);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--color-light);
  overflow: visible; /* necessário para o dropdown não ser cortado */
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem var(--spacing-md);
  max-width: var(--max-width);
  margin: 0 auto;
}

/* ── Logo ────────────────────────────────────────────────── */
.logo {
  display: flex;
  flex-direction: column;
  line-height: 1;
  text-decoration: none;
}

.logo__name {
  font-family: var(--font-serif);
  font-size: 1.9rem;
  font-weight: 600;
  color: var(--color-dark);
  letter-spacing: 0.04em;
}

.logo__sub {
  font-family: var(--font-sans);
  font-size: 0.58rem;
  letter-spacing: 0.26em;
  color: var(--color-primary);
  text-transform: uppercase;
  margin-top: 0.15rem;
}

/* ── Navegação Desktop ───────────────────────────────────── */
.nav__list {
  display: flex;
  align-items: center;
  gap: 1.8rem;
}

.nav__link {
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-mid);
  position: relative;
  transition: color var(--transition-fast);
}

.nav__link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -3px;
  width: 0;
  height: 1.5px;
  background: var(--color-primary);
  transition: width var(--transition-normal);
}

.nav__link:hover {
  color: var(--color-primary);
}

.nav__link:hover::after {
  width: 100%;
}

/* ── Link CTA (Contactos) ────────────────────────────────── */
.nav__link--cta {
  background: var(--color-primary);
  color: var(--color-white) !important;
  padding: 0.48rem 1.1rem;
  border-radius: var(--radius);
  letter-spacing: 0.1em;
}

.nav__link--cta::after {
  display: none;
}

.nav__link--cta:hover {
  background: var(--color-primary-light);
}

/* ── Dropdown "Mais" ─────────────────────────────────────── */
.nav__item--dropdown {
  position: relative;
}

.nav__dropdown-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav__dropdown-arrow {
  font-size: 0.6rem;
  transition: transform var(--transition-fast);
  display: inline-block;
}

.nav__item--dropdown.is-open .nav__dropdown-arrow {
  transform: rotate(180deg);
}

.nav__dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 0.8rem);
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-dark);
  border-radius: var(--radius);
  min-width: 170px;
  padding: 0.5rem 0;
  box-shadow: 0 8px 24px rgba(0,0,0,0.22);
  z-index: 9999;
  border-top: 2px solid var(--color-primary);
}

.nav__item--dropdown.is-open .nav__dropdown {
  display: block;
  animation: dropdownIn 0.2s ease;
}

@keyframes dropdownIn {
  from { opacity: 0; transform: translateX(-50%) translateY(-6px); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}

.nav__dropdown-link {
  display: block;
  padding: 0.55rem 1.2rem;
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  transition: color var(--transition-fast), background var(--transition-fast);
  white-space: nowrap;
}

.nav__dropdown-link:hover {
  color: var(--color-white);
  background: rgba(255,255,255,0.06);
}

/* ── Botão Hamburguer ────────────────────────────────────── */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}

.hamburger__line {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-dark);
  border-radius: 2px;
  transition: var(--transition-fast);
}

/* ── Menu Mobile (overlay) ───────────────────────────────── */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--color-dark);
  z-index: 200;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2.5rem;
}

.mobile-menu.is-open {
  display: flex;
}

.mobile-menu__link {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 300;
  color: var(--color-white);
  text-decoration: none;
  letter-spacing: 0.04em;
  transition: color var(--transition-fast);
}

.mobile-menu__link:hover {
  color: var(--color-primary-light);
}

.mobile-menu__close {
  position: absolute;
  top: 2rem;
  right: 2rem;
  background: none;
  border: none;
  color: var(--color-white);
  font-size: 2rem;
  cursor: pointer;
  line-height: 1;
}

/* ── Responsivo ──────────────────────────────────────────── */
@media (max-width: 900px) {
  .nav__list {
    display: none;
  }

  .hamburger {
    display: flex;
  }
}