/* =====================================================================
   HEADER — barra branca fixa com logo à esquerda e menu à direita
   ===================================================================== */

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--c-white);
  height: var(--header-h);
}

.header__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

/* ------------------------------------------------------------------ logo */
.header__logo {
  display: block;
  flex: 0 0 auto;
}

.header__logo img {
  height: 2.5rem;          /* 40px @1440 */
  width: auto;
}

/* ------------------------------------------------------------------- nav */
.nav__list {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav__link {
  display: inline-block;
  font-size: 0.6875rem;    /* 11px @1440 */
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-green);
  padding-block: 0.25rem;
  position: relative;
  transition: color var(--t);
}

.nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: var(--c-orange);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--t);
}

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

/* ------------------------------------------------------- toggle (mobile) */
.nav__toggle {
  display: none;           /* liberado só no breakpoint mobile */
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0.5rem;
}

.nav__toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--c-green);
  transition: transform var(--t), opacity var(--t);
}

/* =====================================================================
   MOBILE — logo à esquerda, hambúrguer à direita, menu em painel
   ===================================================================== */
@media (max-width: 768px) {
  .header__logo img {
    height: 2.375rem;         /* 38px @430 */
  }

  .nav__toggle { display: flex; }

  /* Painel de tela cheia: `fixed` cobre da barra até o rodapé da viewport,
     independente da rolagem da página. O overflow-y garante acesso a todos
     os itens em telas baixas. */
  .nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    bottom: 0;
    display: none;
    overflow-y: auto;
    overscroll-behavior: contain;
    background: var(--c-white);
    border-top: 1px solid rgba(0, 0, 0, 0.08);
  }

  .nav.is-open { display: block; }

  /* trava a rolagem do conteúdo atrás enquanto o menu está aberto */
  body.is-menu-open { overflow: hidden; }

  .nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .nav__link {
    display: block;
    padding: 3.125rem var(--container-pad);
    font-size: 1.375rem;         /* 22px @430 */
    font-weight: 700;
    letter-spacing: 0.12em;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  }

  .nav__link::after { content: none; }

  /* hambúrguer vira X quando aberto */
  .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);
  }
}