/* ==========================================================================
   NAVIGATION — GLASS BLUR & FULLSCREEN MOBILE MENU
   ========================================================================== */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  transition: height var(--transition-base), background-color var(--transition-base), backdrop-filter var(--transition-base), border-color var(--transition-base);
  border-bottom: 1px solid transparent;
}

.site-header.is-scrolled {
  height: var(--nav-height-scrolled);
  background-color: rgba(11, 11, 12, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom-color: var(--color-border);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

/* Monogram Logo */
.site-logo {
  display: flex;
  align-items: baseline;
  gap: 2px;
  font-family: var(--font-display);
  font-size: 1.85rem;
  font-weight: 400;
  letter-spacing: -0.02em;
  color: var(--color-ivory);
  text-decoration: none;
  z-index: 1002;
}

.site-logo .logo-dot {
  color: var(--color-gold);
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 1.6rem;
  line-height: 0;
}

/* Desktop Navigation */
.nav-desktop {
  display: flex;
  align-items: center;
  gap: clamp(24px, 3vw, 40px);
}

.nav-links {
  display: flex;
  align-items: center;
  list-style: none;
  gap: clamp(20px, 2.5vw, 36px);
}

.nav-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-muted);
  position: relative;
  padding: 6px 0;
  transition: color var(--transition-fast);
}

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

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

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

/* Nav Actions (CTA Button) */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav-cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  background-color: var(--color-gold);
  color: var(--color-ink);
  transition: transform var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast);
}

.nav-cta-btn:hover {
  background-color: var(--color-gold-hover);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(201, 166, 107, 0.25);
}

/* Mobile Toggle Hamburger */
.mobile-toggle {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  width: 44px;
  height: 44px;
  position: relative;
  z-index: 1002;
  align-items: center;
  justify-content: center;
}

.mobile-toggle-icon {
  width: 24px;
  height: 14px;
  position: relative;
  display: block;
}

.mobile-toggle-icon span {
  display: block;
  position: absolute;
  height: 1.5px;
  width: 100%;
  background: var(--color-ivory);
  border-radius: 2px;
  opacity: 1;
  left: 0;
  transform: rotate(0deg);
  transition: 0.3s ease-in-out;
}

.mobile-toggle-icon span:nth-child(1) {
  top: 0;
}

.mobile-toggle-icon span:nth-child(2) {
  top: 6px;
}

.mobile-toggle-icon span:nth-child(3) {
  top: 12px;
}

.mobile-toggle.is-open .mobile-toggle-icon span:nth-child(1) {
  top: 6px;
  transform: rotate(135deg);
}

.mobile-toggle.is-open .mobile-toggle-icon span:nth-child(2) {
  opacity: 0;
  left: -20px;
}

.mobile-toggle.is-open .mobile-toggle-icon span:nth-child(3) {
  top: 6px;
  transform: rotate(-135deg);
}

/* Fullscreen Mobile Drawer */
.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  background-color: var(--color-ink);
  z-index: 1001;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: calc(var(--nav-height) + 20px) var(--container-padding) 40px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.4s var(--ease-smooth), visibility 0.4s;
}

.mobile-menu.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.mobile-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 20px;
}

.mobile-link {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 8vw, 3.5rem);
  color: var(--color-ivory);
  text-decoration: none;
  display: inline-flex;
  align-items: baseline;
  gap: 16px;
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.mobile-link-num {
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: var(--color-gold);
  letter-spacing: 0.1em;
}

.mobile-link:hover {
  color: var(--color-gold);
  transform: translateX(8px);
}

.mobile-footer {
  border-top: 1px solid var(--color-border);
  padding-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.mobile-footer-socials {
  display: flex;
  gap: 24px;
}

.mobile-footer-socials a {
  font-size: 0.9375rem;
  color: var(--color-muted);
}

.mobile-footer-socials a:hover {
  color: var(--color-gold);
}

@media (max-width: 860px) {
  .nav-desktop {
    display: none;
  }
  .mobile-toggle {
    display: flex;
  }
}