/* AT chrome (v=2 wave)  — one steel header on every page (wins over stack drift). */
html {
  scrollbar-gutter: stable;
}

.main-nav {
  background: rgba(5, 5, 8, 0.95) !important;
  border-bottom: 1px solid var(--border-subtle, rgba(255, 255, 255, 0.08)) !important;
  backdrop-filter: blur(20px) !important;
  -webkit-backdrop-filter: blur(20px) !important;
  position: fixed !important;
  top: 0 !important;
  left: 0 !important;
  right: 0 !important;
  z-index: 1000 !important;
  height: 60px !important;
  min-height: 60px !important;
  max-height: 60px !important;
  display: flex !important;
  align-items: center !important;
  padding: 0 !important;
  margin: 0 !important;
}

.main-nav::before {
  display: none !important;
  content: none !important;
}

.nav-container {
  width: 100% !important;
  max-width: 1400px !important;
  margin: 0 auto !important;
  padding: 0 2rem !important;
  display: flex !important;
  align-items: center !important;
  justify-content: space-between !important;
  gap: 2rem !important;
  box-sizing: border-box !important;
}

.nav-logo {
  display: flex !important;
  align-items: center !important;
  gap: 0.5rem !important;
  font-size: 1.25rem !important;
  font-weight: 600 !important;
  color: var(--text-primary, #e8e6e1) !important;
  text-decoration: none !important;
  flex-shrink: 0 !important;
}

.nav-logo .phi {
  font-size: 1.5rem !important;
  color: var(--phi-amber, #c9a227) !important;
  text-shadow: 0 0 20px var(--phi-glow, rgba(201, 162, 39, 0.45)) !important;
}

.nav-logo .logo-text {
  display: inline !important;
}

.nav-menu {
  display: flex !important;
  align-items: center !important;
  gap: 1.5rem !important;
  list-style: none !important;
  margin: 0 !important;
  padding: 0 !important;
  flex: 1 !important;
  justify-content: center !important;
  flex-wrap: nowrap !important;
  position: static !important;
  background: transparent !important;
  border: 0 !important;
}

.nav-link {
  color: var(--text-secondary, #a8a6a1) !important;
  font-size: 0.75rem !important;
  font-weight: 500 !important;
  letter-spacing: var(--tracking-tech, 0.06em) !important;
  text-transform: uppercase !important;
  text-decoration: none !important;
  position: relative !important;
  padding: 0.25rem 0 !important;
  border: 0 !important;
  background: transparent !important;
  transition: color 0.2s ease !important;
  white-space: nowrap !important;
  text-shadow: none !important;
}

.nav-link::after {
  content: "" !important;
  position: absolute !important;
  bottom: -2px !important;
  left: 0 !important;
  width: 0 !important;
  height: 1px !important;
  background: var(--phi-amber, #c9a227) !important;
  transition: width 0.3s ease !important;
}

.nav-link:hover,
.nav-link.active {
  color: #00e5ff !important;
  text-shadow: 0 0 15px rgba(0, 229, 255, 0.7) !important;
}

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

.lang-switcher {
  display: flex !important;
  align-items: center !important;
  flex-shrink: 0 !important;
  margin-left: 1rem !important;
  padding-left: 0 !important;
  border-left: 0 !important;
  gap: 0.5rem !important;
}

.lang-switcher a,
.lang-switcher .lang-link {
  color: var(--text-secondary, #a8a6a1) !important;
  font-size: 0.75rem !important;
  font-weight: 500 !important;
  text-decoration: none !important;
  padding: 0.5rem 0.75rem !important;
  border: 1px solid var(--border-subtle, rgba(255, 255, 255, 0.08)) !important;
  border-radius: 4px !important;
  transition: all 0.2s ease !important;
  display: inline-block !important;
  width: auto !important;
  height: auto !important;
  background: transparent !important;
}

.lang-switcher a:hover,
.lang-switcher .lang-link:hover {
  color: var(--phi-amber, #c9a227) !important;
  border-color: var(--border-active, rgba(201, 162, 39, 0.45)) !important;
  background: rgba(201, 162, 39, 0.05) !important;
}

.mobile-toggle {
  display: none !important;
  flex-direction: column !important;
  gap: 5px !important;
  background: none !important;
  border: none !important;
  cursor: pointer !important;
  padding: 0.5rem !important;
}

.mobile-toggle span {
  width: 24px !important;
  height: 2px !important;
  background: var(--text-primary, #e8e6e1) !important;
}

main#main-content,
body > main {
  padding-top: 60px;
}

/* Eco/theory strip sits under fixed nav — clear it without double-padding main */
.framing-banner {
  margin-top: 60px !important;
  position: relative;
  z-index: 900;
  box-sizing: border-box;
}

body:has(.framing-banner) main#main-content,
body:has(.framing-banner) > main {
  padding-top: 0 !important;
}

@media (max-width: 1280px) {
  .nav-menu {
    display: none !important;
    position: absolute !important;
    top: 60px !important;
    left: 0 !important;
    right: 0 !important;
    background: var(--void, #050508) !important;
    flex-direction: column !important;
    padding: 1rem !important;
    gap: 1rem !important;
    border-bottom: 1px solid var(--border-subtle, rgba(255, 255, 255, 0.08)) !important;
    justify-content: flex-start !important;
    max-height: calc(100vh - 60px) !important;
    overflow-y: auto !important;
  }

  .nav-menu.active {
    display: flex !important;
  }

  .mobile-toggle {
    display: flex !important;
  }
}

@media (max-width: 768px) {
  .nav-container {
    padding: 0 1rem !important;
  }
}