/* ==========================================================================
   ELISIA — Navigation Stylesheet
   Sticky, responsive, editorial navbar & mobile drawer
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: var(--color-plum-dark);
  border-bottom: 1px solid rgba(232, 85, 103, 0.15);
  box-shadow: 0 4px 25px rgba(18, 4, 19, 0.4);
  transition: background-color var(--transition-smooth), padding var(--transition-smooth), box-shadow var(--transition-smooth);
}

.site-header.scrolled {
  background-color: rgba(33, 8, 34, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(232, 85, 103, 0.2);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  padding: 0 2rem;
  max-width: var(--container-max);
  margin: 0 auto;
}

/* Brand Logo Placement */
.brand-link {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  text-decoration: none;
}

.brand-logo-img {
  width: 52px;
  height: 52px;
  object-fit: cover;
  border-radius: 50%;
  border: 1px solid rgba(232, 85, 103, 0.4);
  box-shadow: 0 0 16px rgba(232, 85, 103, 0.15);
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.brand-link:hover .brand-logo-img {
  transform: scale(1.04);
  border-color: var(--color-coral);
}

.brand-text-lockup {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  letter-spacing: 0.08em;
  color: var(--color-white);
  font-weight: 500;
  line-height: 1;
}

.brand-tagline {
  font-family: var(--font-sans);
  font-size: 0.65rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--color-coral);
  margin-top: 0.25rem;
}

/* Desktop Navigation Menu */
.desktop-nav {
  display: flex;
  align-items: center;
  gap: 2.25rem;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  font-family: var(--font-sans);
  font-size: 0.88rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted-dark);
  position: relative;
  padding: 0.5rem 0;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1.5px;
  background-color: var(--color-coral);
  transition: width var(--transition-fast);
}

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

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

/* Mobile Toggle Hamburger */
.mobile-nav-toggle {
  display: none;
  background: none;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-sm);
  padding: 0.55rem;
  color: var(--color-white);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.mobile-nav-toggle:hover {
  background-color: rgba(255, 255, 255, 0.06);
  border-color: var(--color-coral);
}

.hamburger-icon {
  width: 22px;
  height: 16px;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.hamburger-line {
  display: block;
  width: 100%;
  height: 1.5px;
  background-color: var(--color-white);
  border-radius: 2px;
  transition: transform var(--transition-smooth), opacity var(--transition-fast);
}

/* Toggle Active State */
.mobile-nav-toggle.open .hamburger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
  background-color: var(--color-coral);
}

.mobile-nav-toggle.open .hamburger-line:nth-child(2) {
  opacity: 0;
}

.mobile-nav-toggle.open .hamburger-line:nth-child(3) {
  transform: translateY(-7.5px) rotate(-45deg);
  background-color: var(--color-coral);
}

/* Mobile Navigation Drawer */
.mobile-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: 85%;
  max-width: 380px;
  height: 100vh;
  background-color: var(--color-plum-black);
  border-left: 1px solid rgba(232, 85, 103, 0.2);
  box-shadow: -10px 0 35px rgba(0, 0, 0, 0.6);
  z-index: 1001;
  display: flex;
  flex-direction: column;
  padding: 2rem 1.75rem;
  transition: right var(--transition-smooth);
  overflow-y: auto;
}

.mobile-drawer.open {
  right: 0;
}

.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2.5rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.mobile-close-btn {
  color: var(--color-text-muted-dark);
  font-size: 1.75rem;
  line-height: 1;
  padding: 0.25rem;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.mobile-close-btn:hover {
  color: var(--color-coral);
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.mobile-nav-link {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  color: var(--color-text-on-dark);
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
  color: var(--color-coral);
  transform: translateX(6px);
}

.mobile-nav-link .link-arrow {
  font-size: 1rem;
  color: var(--color-coral);
  opacity: 0.6;
}

.mobile-drawer-footer {
  margin-top: auto;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.mobile-drawer-contact {
  font-size: 0.85rem;
  color: var(--color-text-muted-dark);
  line-height: 1.6;
}

.mobile-drawer-contact strong {
  color: var(--color-white);
  display: block;
  margin-bottom: 0.25rem;
}

.drawer-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(14, 3, 15, 0.7);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-smooth);
}

.drawer-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}

/* Responsive Breakpoint for Navbar */
@media (max-width: 991px) {
  .desktop-nav,
  .nav-actions {
    display: none;
  }

  .mobile-nav-toggle {
    display: flex;
  }

  .nav-container {
    height: var(--header-height-mobile);
    padding: 0 1.25rem;
  }
}