/* ============================================================
   header-footer.css — Site Header & Footer Styles
   Sticky header, desktop nav, dropdown menus, hamburger,
   mobile menu, footer grid, footer bottom bar.
   ============================================================ */

/* ============================
   Site Header
   ============================ */

.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  width: 100%;
  height: var(--nav-height);
  background-color: var(--color-white);
  box-shadow: var(--shadow-nav);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}


/* ============================
   Logo
   ============================ */

.site-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  text-decoration: none;
  flex-shrink: 0;
}

.logo-text {
  font-family: var(--font-family);
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-bold);
  color: var(--color-navy);
  letter-spacing: -0.02em;
  line-height: 1;
}

.logo-image {
  height: 48px;
  width: auto;
  display: block;
}

/* Footer: grayscale + invert + lighten blend makes white JPG background
   dissolve into the navy while the logo silhouette appears white */
.footer-logo .logo-image {
  height: 44px;
  filter: grayscale(1) invert(1);
  mix-blend-mode: lighten;
  opacity: 0.92;
}

.site-logo:hover .logo-image {
  opacity: 0.85;
}

.site-logo:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 4px;
  border-radius: var(--radius-xs);
}


/* ============================
   Desktop Navigation
   ============================ */

/* Hidden on mobile — shown via responsive.css at 1024px+ */
.site-nav {
  display: none;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  list-style: none;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast),
              background-color var(--transition-fast);
  white-space: nowrap;
}

.nav-link:hover {
  color: var(--color-primary);
  background-color: var(--color-light-gray);
  text-decoration: none;
}

.nav-link.is-active {
  color: var(--color-primary);
  font-weight: var(--font-weight-semibold);
  background-color: rgba(24, 95, 165, 0.07);
}

/* Nav CTA (Contact button in nav) */
.nav-list .btn {
  margin-left: var(--spacing-sm);
}


/* ============================
   Dropdown Menus
   ============================ */

.nav-item-dropdown {
  position: relative;
}

.nav-item-dropdown > .nav-link .icon-chevron-down {
  transition: transform var(--transition-fast);
  opacity: 0.6;
}

.nav-item-dropdown > .nav-link[aria-expanded="true"] .icon-chevron-down {
  transform: rotate(180deg);
  opacity: 1;
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  min-width: 200px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  list-style: none;
  padding: var(--spacing-sm) 0;
  z-index: var(--z-dropdown);
  /* Hidden by default */
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity var(--transition-fast),
              visibility var(--transition-fast),
              transform var(--transition-fast);
  pointer-events: none;
}

.dropdown-menu.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}

.dropdown-menu a {
  display: block;
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: var(--font-size-sm);
  color: var(--color-text);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.dropdown-menu a:hover {
  background-color: var(--color-light-gray);
  color: var(--color-primary);
  text-decoration: none;
}


/* ============================
   Hamburger Button
   ============================ */

.hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: var(--spacing-sm);
  border-radius: var(--radius-sm);
  cursor: pointer;
  background: none;
  border: none;
  transition: background-color var(--transition-fast);
  flex-shrink: 0;
}

.hamburger:hover {
  background-color: var(--color-light-gray);
}

.hamburger:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.hamburger-line {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-navy);
  border-radius: var(--radius-full);
  transition: transform var(--transition-normal),
              opacity var(--transition-normal);
  transform-origin: center;
}

/* Hamburger → X animation when open */
body.menu-open .hamburger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
body.menu-open .hamburger-line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
body.menu-open .hamburger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}


/* ============================
   Mobile Menu
   ============================ */

.mobile-menu {
  position: fixed;
  top: 0;
  right: 0;
  width: min(320px, 85vw);
  height: 100vh;
  background-color: var(--color-white);
  z-index: var(--z-overlay);
  padding: calc(var(--nav-height) + var(--spacing-lg)) var(--spacing-lg) var(--spacing-lg);
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform var(--transition-normal);
  box-shadow: var(--shadow-card);
}

.mobile-menu.is-open {
  transform: translateX(0);
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  list-style: none;
}

.mobile-nav-link {
  display: block;
  padding: var(--spacing-md) var(--spacing-sm);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
  transition: color var(--transition-fast), background-color var(--transition-fast);
  border-radius: var(--radius-sm);
}

.mobile-nav-link:hover {
  color: var(--color-primary);
  background-color: var(--color-light-gray);
  text-decoration: none;
}

.mobile-nav-link.is-active {
  color: var(--color-primary);
  font-weight: var(--font-weight-semibold);
}

/* Mobile CTA button link */
.mobile-nav-link.mobile-cta {
  margin-top: var(--spacing-md);
  background-color: var(--color-primary);
  color: var(--color-white);
  text-align: center;
  border-radius: var(--radius-sm);
  border-bottom: none;
  font-weight: var(--font-weight-semibold);
}

.mobile-nav-link.mobile-cta:hover {
  background-color: var(--color-primary-dark);
  color: var(--color-white);
}

/* Overlay behind mobile menu */
.menu-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(4, 44, 83, 0.5);
  z-index: calc(var(--z-overlay) - 1);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
  cursor: pointer;
}

.menu-overlay.is-visible {
  opacity: 1;
  visibility: visible;
}

/* Prevent body scroll when menu is open */
body.menu-open {
  overflow: hidden;
}


/* ============================
   Site Footer
   ============================ */

.site-footer {
  background-color: var(--color-navy);
  color: var(--color-text-inverse);
  border-top: 3px solid var(--color-gold);
}

.footer-main {
  padding: var(--spacing-3xl) 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-2xl);
}

.footer-col {}

/* Logo in footer */
.footer-logo {
  display: inline-block;
  margin-bottom: var(--spacing-md);
  text-decoration: none;
}

.footer-logo .logo-text {
  color: var(--color-white);
  font-size: var(--font-size-lg);
}

.footer-logo:hover .logo-image {
  opacity: 0.75;
}

.footer-tagline {
  font-size: var(--font-size-sm);
  color: rgba(250, 250, 248, 0.7);
  line-height: var(--line-height-relaxed);
  max-width: 280px;
}

/* Footer headings */
.footer-heading {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(250, 250, 248, 0.5);
  margin-bottom: var(--spacing-md);
}

/* Footer link lists */
.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  list-style: none;
}

.footer-links a {
  font-size: var(--font-size-sm);
  color: rgba(250, 250, 248, 0.8);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-white);
  text-decoration: none;
}

/* Footer address */
.footer-address {
  font-style: normal;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer-address p {
  font-size: var(--font-size-sm);
  color: rgba(250, 250, 248, 0.8);
  line-height: var(--line-height-relaxed);
}

.footer-address a {
  color: rgba(250, 250, 248, 0.8);
  transition: color var(--transition-fast);
}

.footer-address a:hover {
  color: var(--color-white);
  text-decoration: none;
}

/* Footer Bottom Bar */
.footer-bottom {
  background-color: rgba(0, 0, 0, 0.25);
  padding: var(--spacing-md) 0;
}

.footer-bottom-inner {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  align-items: center;
  text-align: center;
}

.footer-copyright {
  font-size: var(--font-size-xs);
  color: rgba(250, 250, 248, 0.5);
  margin: 0;
}

.footer-legal-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--spacing-md);
  list-style: none;
}

.footer-legal-links a {
  font-size: var(--font-size-xs);
  color: rgba(250, 250, 248, 0.5);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-legal-links a:hover {
  color: var(--color-white);
}