/* ============================================================
   CASA DA MONTANHA — Header & Navigation
   header.css
   ============================================================ */

/* ── Header Container ── */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 4rem;
  height: 80px;
  transition: background 0.4s ease, backdrop-filter 0.4s ease;
}

.site-header.scrolled {
  background: rgba(10, 10, 10, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

/* ── Logo ── */
.logo {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.25rem;
  font-weight: 300;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--white);
  line-height: 1.2;
}

.logo__subtitle {
  display: block;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.55rem;
  letter-spacing: 0.6em;
  color: var(--green);
  margin-top: 2px;
  font-weight: 300;
}

/* ── Navigation ── */
.nav {
  display: flex;
  gap: 2.5rem;
  align-items: center;
}

.nav__link {
  color: rgba(248, 247, 244, 0.8);
  font-family: 'Montserrat', sans-serif;
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-weight: 400;
  transition: color 0.2s ease;
}

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

.nav__link--cta {
  border: 1px solid var(--green);
  padding: 0.5rem 1.4rem;
  color: var(--green) !important;
  transition: background 0.2s ease, color 0.2s ease;
}

.nav__link--cta:hover {
  background: var(--green);
  color: var(--black) !important;
}

/* ── Mobile Hamburger ── */
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}

.nav__toggle span {
  display: block;
  width: 24px;
  height: 1px;
  background: var(--white);
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav__toggle.active span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav__toggle.active span:nth-child(2) { opacity: 0; }
.nav__toggle.active span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ── Mobile Menu ── */
.nav__mobile {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(10, 10, 10, 0.97);
  z-index: 99;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2.5rem;
}

.nav__mobile.open {
  display: flex;
}

.nav__mobile .nav__link {
  font-size: 1rem;
  letter-spacing: 0.35em;
  color: rgba(248, 247, 244, 0.85);
}

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

.nav__mobile .nav__link--cta {
  font-size: 0.8rem;
  padding: 0.8rem 2.5rem;
}

/* ── Responsive ── */
@media (max-width: 900px) {
  .site-header {
    padding: 0 1.25rem;
    height: 64px;
  }

  .logo {
    font-size: 1rem;
    letter-spacing: 0.2em;
  }

  .logo__subtitle {
    font-size: 0.48rem;
    letter-spacing: 0.4em;
  }

  .nav {
    display: none;
  }

  .nav__toggle {
    display: flex;
    padding: 8px;
    min-width: 44px;
    min-height: 44px;
    justify-content: center;
    align-items: center;
    gap: 5px;
    flex-direction: column;
  }
}

@media (max-width: 500px) {
  .site-header {
    padding: 0 1rem;
  }

  .logo {
    font-size: 0.9rem;
    letter-spacing: 0.15em;
  }

  .nav__mobile .nav__link {
    font-size: 0.85rem;
    letter-spacing: 0.25em;
    min-height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .nav__mobile .nav__link--cta {
    font-size: 0.72rem;
    padding: 0.9rem 2.5rem;
    min-height: 48px;
  }
}