/* Header & Navigation */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background-color: var(--color-header-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 1000;
  border-bottom: 1px solid rgba(99, 73, 46, 0.05);
  transition: background-color var(--transition-normal), box-shadow var(--transition-normal);
}

.site-header.scrolled {
  box-shadow: var(--shadow-sm);
  background-color: rgba(219, 212, 197, 0.95);
}

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

.site-logo {
  font-family: var(--font-title);
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--color-brand);
  letter-spacing: 0.05em;
  transition: opacity var(--transition-fast);
}

.site-logo:hover {
  opacity: 0.8;
}

.site-logo img {
  height: 3.6rem; /* 2.4x the original MB'S text size (1.5rem) */
  width: auto;
  display: block;
}

/* Nav Menu */
.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.nav-item {
  position: relative;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--color-brand);
  padding: 0.5rem 0;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.nav-item::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-brand);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-normal);
}

.nav-item:hover::after,
.nav-item.active::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-item.active {
  font-weight: 700;
}

.nav-cta {
  font-size: 0.9rem;
  padding: 0.5rem 1.2rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Mobile Toggle & Menu */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 30px;
  height: 24px;
  position: relative;
  z-index: 1001;
}

.mobile-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-brand);
  position: absolute;
  left: 0;
  transition: transform var(--transition-normal), opacity var(--transition-normal), top var(--transition-normal);
}

.mobile-toggle span:nth-child(1) { top: 0; }
.mobile-toggle span:nth-child(2) { top: 11px; }
.mobile-toggle span:nth-child(3) { top: 22px; }

.mobile-toggle.open span:nth-child(1) {
  transform: rotate(45deg);
  top: 11px;
}
.mobile-toggle.open span:nth-child(2) {
  opacity: 0;
}
.mobile-toggle.open span:nth-child(3) {
  transform: rotate(-45deg);
  top: 11px;
}

@media (max-width: 991px) {
  .nav-menu {
    gap: var(--spacing-md);
  }
}

@media (max-width: 768px) {
  .mobile-toggle {
    display: block;
  }
  
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 320px;
    height: 100vh;
    background-color: var(--color-bg-light);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    transition: right var(--transition-normal);
    gap: var(--spacing-lg);
    padding: var(--spacing-xl);
  }
  
  .nav-menu.open {
    right: 0;
  }
  
  .nav-item {
    font-size: 1.2rem;
  }
}