/* =========================================================
   Brigade Granada — Header
   Fixed, transparent header that solidifies on scroll.
   ========================================================= */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1500;
  padding: 22px 0;
  background: linear-gradient(180deg, rgba(20, 39, 32, 0.55) 0%, rgba(20, 39, 32, 0) 100%);
  border-bottom: 1px solid transparent;
  transition: background 0.5s var(--ease-luxe), padding 0.4s var(--ease-luxe),
    box-shadow 0.5s var(--ease-luxe), border-color 0.5s var(--ease-luxe);
}

.site-header.is-scrolled {
  padding: 14px 0;
  background: rgba(20, 39, 32, 0.86);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 12px 40px rgba(8, 14, 11, 0.3);
  border-bottom-color: rgba(209, 122, 82, 0.18);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

/* ---------- Logo ---------- */

.site-header__logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.site-header__logo img {
  height: 44px;
  width: 44px;
  transition: height 0.4s var(--ease-luxe), width 0.4s var(--ease-luxe);
}

.is-scrolled .site-header__logo img {
  height: 36px;
  width: 36px;
}

.site-header__wordmark {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.site-header__wordmark strong {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--color-cream);
}

.site-header__wordmark span {
  font-family: var(--font-sans);
  font-size: 0.62rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-top: 3px;
}

/* ---------- Nav ---------- */

.site-header__nav ul {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-link {
  position: relative;
  padding: 6px 1px;
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--color-cream);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 1px;
  background: var(--color-accent);
  transition: width 0.4s var(--ease-luxe);
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--color-accent);
}

.nav-link:hover::after,
.nav-link:focus-visible::after {
  width: 100%;
}

.btn-enquire-mobile {
  display: none;
}

/* ---------- Actions ---------- */

.site-header__actions {
  display: flex;
  align-items: center;
  gap: 26px;
  flex-shrink: 0;
}

.btn-call {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  color: var(--color-cream);
  transition: color 0.3s ease;
}

.btn-call svg {
  width: 16px;
  height: 16px;
  stroke: var(--color-accent);
  flex-shrink: 0;
}

.btn-call:hover,
.btn-call:focus-visible {
  color: var(--color-accent);
}

.btn-call__label {
  display: inline;
}

/* ---------- Mobile menu toggle ---------- */

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 6px;
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  z-index: 1600;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 1px;
  background: var(--color-cream);
  transition: transform 0.4s var(--ease-luxe), opacity 0.3s ease, background 0.3s ease;
}

.menu-toggle.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle.is-open span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---------- Responsive ---------- */

@media (max-width: 1080px) {
  .site-header__nav ul {
    gap: 24px;
  }

  .site-header__actions {
    gap: 18px;
  }

  .btn-call__label {
    display: none;
  }
}

@media (max-width: 860px) {
  .site-header {
    padding: 16px 0;
  }

  .is-scrolled {
    padding: 12px 0;
  }

  .site-header__wordmark {
    display: none;
  }

  .site-header__nav {
    position: fixed;
    inset: 0;
    z-index: 1550;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-dark-soft);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-12px);
    transition: opacity 0.45s var(--ease-luxe), visibility 0.45s var(--ease-luxe),
      transform 0.45s var(--ease-luxe);
  }

  .site-header__nav.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .site-header__nav ul {
    flex-direction: column;
    gap: 30px;
    text-align: center;
  }

  .nav-link {
    font-size: 1.05rem;
  }

  .site-header__nav .btn-enquire-mobile {
    margin-top: 16px;
    display: inline-flex;
  }

  .site-header__actions .btn-enquire {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }
}

@media (max-width: 420px) {
  .btn-call svg {
    width: 18px;
    height: 18px;
  }
}