.header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.header.is-scrolled {
  border-color: var(--borda);
  box-shadow: var(--sombra-sm);
}

.header__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  height: var(--header-h);
}

.header__logo img {
  width: 168px;
  height: auto;
}

.footer {
  position: relative;
  overflow: hidden;
  padding-top: clamp(64px, 7vw, 96px);
  background: var(--fundo);
  border-top: 1px solid var(--borda);
}

.footer__top {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 32px 56px;
}

.footer__brand img {
  width: 176px;
  height: auto;
}

.footer__tagline {
  margin-top: 14px;
  font-family: var(--fonte-titulo);
  font-size: 1.05rem;
  font-weight: 300;
  color: var(--verde);
}

.footer__nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 26px;
}

.footer__nav a,
.footer__social {
  position: relative;
  padding: 4px 0;
  font-family: var(--fonte-titulo);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--verde-escuro);
}

.footer__nav a::after,
.footer__social::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--verde-lima);
  transform: scaleX(0);
  transform-origin: right center;
  transition: transform 0.45s var(--ease);
}

.footer__nav a:hover::after,
.footer__social:hover::after {
  transform: scaleX(1);
  transform-origin: left center;
}

.footer__totop {
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  overflow: hidden;
  border-radius: 50%;
  background: var(--verde-escuro);
  color: var(--verde-lima);
  transition: transform 0.5s var(--ease), background-color 0.35s;
}

.footer__totop svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.footer__totop:hover {
  transform: translateY(-4px);
  background: var(--verde-medio);
}

.footer__line {
  display: block;
  height: 1.5px;
  margin: clamp(40px, 5vw, 56px) 0 24px;
  background: var(--verde-escuro);
}

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px 24px;
  flex-wrap: wrap;
}

.footer__bottom p {
  font-size: var(--fs-small);
  color: var(--texto-suave);
}

.footer__social {
  font-size: var(--fs-small);
}

.footer__giant {
  margin-top: clamp(24px, 4vw, 48px);
  color: var(--cinza-claro);
  user-select: none;
  pointer-events: none;
}

/* "Principiar" em contornos (Poppins Bold, -0.06em), viewBox recortado no limite das letras: ocupa exatamente a largura do container */
.footer__giant svg {
  width: 100%;
  height: auto;
  fill: currentColor;
}

@media (max-width: 960px) {
  .footer__top {
    grid-template-columns: 1fr auto;
  }

  .footer__nav {
    grid-column: 1 / -1;
    grid-row: 2;
    justify-content: flex-start;
  }
}

@media (max-width: 640px) {
  .header__logo img {
    width: 132px;
  }

  .header .btn--sm {
    font-size: 0.85rem;
    padding-left: 14px;
  }

  .footer__nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px 16px;
  }

  .footer__bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 380px) {
  .header__logo img {
    width: 116px;
  }

  .header .btn--sm .btn__icon {
    display: none;
  }

  .header .btn--sm.btn--primary {
    padding: 0 14px;
  }
}

.header__actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 6px;
  font-family: var(--fonte-titulo);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--verde-escuro);
  opacity: 0.75;
  transition: opacity 0.3s var(--ease);
}

.lang-switch:hover {
  opacity: 1;
}