/* ==========================================================================
   Site header & navigation
   ========================================================================== */

#site-header { min-height: var(--header-h); } /* reserves space before JS renders → no layout shift */

.site-header {
  position: sticky;
  top: 0;
  z-index: 1030;
  /* Solid background on purpose: backdrop-filter would create a containing
     block and trap the fixed-position mobile off-canvas menu inside the header. */
  background: #fff;
  border-bottom: 1px solid transparent;
  transition: box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.site-header.is-scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

.site-header .navbar {
  min-height: var(--header-h);
  padding-block: 0;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  text-decoration: none;
  padding-block: 0.5rem;
}
.brand-logo img { width: 64px; height: auto; }
.brand-logo__text {
  display: flex;
  flex-direction: column;
  line-height: 1.05;
}
.brand-logo__name {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--brand-charcoal);
  letter-spacing: 0.02em;
}
.brand-logo__tag {
  font-size: 0.625rem;
  font-weight: 500;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--brand-copper-deep);
}

/* ---- Desktop links ---- */
.site-nav .nav-link {
  position: relative;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--brand-charcoal);
  padding: 0.75rem 0.85rem !important;
}
.site-nav .nav-link:hover,
.site-nav .nav-link:focus-visible,
.site-nav .nav-link.show { color: var(--brand-copper-deep); }

@media (min-width: 1200px) {
  .site-nav .nav-link::after {
    content: "";
    position: absolute;
    left: 0.85rem;
    right: 0.85rem;
    bottom: 0.35rem;
    height: 1px;
    background: var(--brand-copper);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--dur) var(--ease);
    border: 0;
    margin: 0;
    vertical-align: 0;
  }
  .site-nav .nav-link:hover::after,
  .site-nav .nav-link.active::after,
  .site-nav .nav-link[aria-current="page"]::after { transform: scaleX(1); }
}
.site-nav .nav-link.active,
.site-nav .nav-link[aria-current="page"] { color: var(--brand-copper-deep); }

/* Replace Bootstrap caret with Font Awesome chevron for consistency */
.site-nav .dropdown-toggle { display: inline-flex; align-items: center; gap: 0.35rem; }
.site-nav .dropdown-toggle .fa-chevron-down { font-size: 0.6rem; transition: transform var(--dur) var(--ease); }
.site-nav .dropdown-toggle.show .fa-chevron-down { transform: rotate(180deg); }

.site-nav .dropdown-menu {
  --bs-dropdown-min-width: 17rem;
  --bs-dropdown-padding-y: 0.75rem;
  --bs-dropdown-border-color: var(--color-border);
  --bs-dropdown-border-radius: var(--radius);
  --bs-dropdown-link-color: var(--brand-charcoal);
  --bs-dropdown-link-hover-bg: var(--brand-cream);
  --bs-dropdown-link-hover-color: var(--brand-copper-deep);
  --bs-dropdown-link-active-bg: var(--brand-cream);
  --bs-dropdown-link-active-color: var(--brand-copper-deep);
  box-shadow: var(--shadow);
  margin-top: 0 !important;
}
.site-nav .dropdown-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--fs-sm);
  padding: 0.6rem 1.25rem;
}
.site-nav .dropdown-item small {
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
}
.site-nav .dropdown-divider { border-color: var(--color-border); }

.header-cta { white-space: nowrap; }

/* ---- Toggler ---- */
.site-header .navbar-toggler {
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  width: 48px;
  height: 48px;
  padding: 0;
  align-items: center;
  justify-content: center;
  color: var(--brand-charcoal);
}
@media (max-width: 1199.98px) {
  .site-header .navbar-toggler { display: inline-flex; } /* Bootstrap hides it at ≥ xl */
}
.site-header .navbar-toggler:focus { box-shadow: none; }

/* ---- Mobile off-canvas panel ---- */
@media (max-width: 1199.98px) {
  .site-header .offcanvas {
    --bs-offcanvas-width: min(88vw, 380px);
    background: #fff;
  }
  .site-header .offcanvas-header { border-bottom: 1px solid var(--color-border); min-height: var(--header-h); }
  .site-nav .nav-link {
    font-size: 0.875rem;
    padding: 0.95rem 0 !important;
    border-bottom: 1px solid var(--color-border);
    justify-content: space-between;
    width: 100%;
  }
  .site-nav .dropdown-menu {
    position: static !important;
    transform: none !important;
    box-shadow: none;
    border: 0;
    padding: 0 0 0.5rem;
    background: var(--brand-cream);
  }
  .site-nav .dropdown-item { padding: 0.75rem 1rem; }
  .header-cta { width: 100%; margin-top: 1.5rem; }
}

/* 1200–1399px: full desktop nav, tighter spacing so links never collide with the logo */
@media (min-width: 1200px) and (max-width: 1399.98px) {
  .site-nav .nav-link { padding-inline: 0.6rem !important; letter-spacing: 0.1em; }
  .site-nav .nav-link::after { left: 0.6rem; right: 0.6rem; }
  .brand-logo__tag { display: none; }
  .brand-logo__name { font-size: 1.2rem; }
  .header-cta { --bs-btn-padding-x: 1.25rem; }
}