/* css/navbar.css */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 100;
  background-color: transparent;
  transition: var(--transition-smooth);
  display: flex;
  align-items: center;
}

header.sticky {
  height: var(--header-height-sticky);
  background-color: var(--color-bg);
  box-shadow: var(--shadow-subtle);
  border-bottom: var(--border-light);
}

.navbar-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--max-width-wide);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* Logo Design */
.logo {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.logo-primary {
  font-family: var(--font-heading);
  font-size: 1.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-dark);
  font-weight: var(--weight-medium);
  transition: var(--transition-smooth);
}

.logo-secondary {
  font-family: var(--font-body);
  font-size: 0.55rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-top: 2px;
  font-weight: var(--weight-semibold);
  transition: var(--transition-smooth);
}

/* Nav Links - Desktop */
.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-md);
  align-items: center;
}

.nav-link {
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: var(--weight-semibold);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-dark);
  padding: 0.5rem 0;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-accent);
  transition: var(--transition-fast);
}

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

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

/* Nav CTA Actions */
.nav-actions {
  display: flex;
  align-items: center;
}

.nav-actions .btn {
  padding: 0.7rem 1.5rem;
  font-size: 0.75rem;
}

/* Mobile Toggle Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 16px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 101;
}

.hamburger span {
  width: 100%;
  height: 1.5px;
  background-color: var(--color-dark);
  transition: var(--transition-smooth);
  transform-origin: left center;
}

/* Mobile Drawer Overlay */
.mobile-nav {
  position: fixed;
  top: 0;
  right: -100%;
  width: 100%;
  height: 100vh;
  background-color: var(--color-bg);
  z-index: 99;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  transition: right 0.5s cubic-bezier(0.77,0.2,0.05,1.0);
  padding: var(--spacing-xl) var(--spacing-md);
  box-shadow: var(--shadow-lightbox);
}

.mobile-nav.active {
  right: 0;
}

.mobile-nav-menu {
  display: flex;
  flex-direction: column;
  list-style: none;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  width: 100%;
}

.mobile-nav-link {
  font-family: var(--font-heading);
  font-size: 2rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-dark);
  padding: 0.5rem 0;
  transition: var(--transition-fast);
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
  color: var(--color-accent);
  padding-left: var(--spacing-xs);
}

.mobile-nav-cta {
  width: 100%;
  max-width: 280px;
  text-align: center;
}

/* Responsive Overrides for Navigation Toggle */
@media (max-width: 1024px) {
  .nav-menu,
  .nav-actions {
    display: none;
  }
  
  .hamburger {
    display: flex;
  }

  header {
    height: var(--header-height-sticky);
    background-color: var(--color-bg);
    border-bottom: var(--border-light);
  }
}

/* Hamburger active animation */
.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(-1px, -2px);
}

.hamburger.active span:nth-child(2) {
  width: 0%;
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(-1px, 2px);
}

/* Homepage Transparent Header Overrides (For dark hero background contrast) */
body.home-page header:not(.sticky) .logo-primary {
  color: var(--color-white);
}

body.home-page header:not(.sticky) .logo-secondary {
  color: var(--color-accent-light);
}

body.home-page header:not(.sticky) .nav-link {
  color: var(--color-white);
}

body.home-page header:not(.sticky) .nav-link::after {
  background-color: var(--color-white);
}

body.home-page header:not(.sticky) .nav-link:hover,
body.home-page header:not(.sticky) .nav-link.active {
  color: var(--color-accent);
}

body.home-page header:not(.sticky) .hamburger span {
  background-color: var(--color-white);
}

body.home-page header:not(.sticky) .btn-outline {
  border-color: var(--color-white);
  color: var(--color-white);
}

body.home-page header:not(.sticky) .btn-outline:hover {
  background-color: var(--color-white);
  color: var(--color-dark);
}