/* ============================================================
   LUBYLAB — Shared chrome: nav, buttons, footer
   ============================================================ */

/* ===== NAV ===== */
.nav {
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-md);
  position: sticky;
  top: 0;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  z-index: 100;
}
.nav__links {
  display: flex;
  align-items: center;
  gap: clamp(20px, 3vw, 40px);
  height: 100%;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}
.nav__link {
  position: relative;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg);
  padding: 0;
  height: 100%;
  display: flex;
  align-items: center;
  transition: opacity 0.2s;
}
.nav__link { transition: color 0.2s ease, opacity 0.2s ease; }
.nav__link:hover { color: var(--hover); opacity: 1; }
.nav__link--active,
.nav__link--active:hover {
  color: var(--hover);
}
.nav__link--active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--hover);
}
.nav__logo {
  display: inline-flex;
  align-items: center;
  height: 100%;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--fg);
  transition: opacity 0.2s;
}
.nav__logo { transition: color 0.2s ease, opacity 0.2s ease; }
.nav__logo:hover { color: var(--hover); opacity: 1; }
.nav__logo-img {
  display: block;
  height: 20px;
  width: auto;
  max-width: 126px;
  object-fit: contain;
}
@media (max-width: 480px) {
  .nav__logo-img { height: 15px; }
}
.nav__right {
  display: flex;
  align-items: center;
  gap: 0;
}

/* ===== LANGUAGE DROPDOWN ===== */
.nav__lang {
  position: relative;
}
.nav__lang-trigger {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 6px 10px;
  border: none;
  background: transparent;
  cursor: pointer;
  transition: color 0.2s;
}
.nav__lang-trigger:hover { color: var(--hover); }
.nav__lang-trigger[aria-expanded="true"] { color: var(--hover); }
.nav__lang-trigger svg {
  transition: transform 0.2s;
}
.nav__lang-trigger[aria-expanded="true"] svg { transform: rotate(180deg); }

.nav__lang-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  min-width: 140px;
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: 0 8px 28px rgba(22, 22, 22, 0.08);
  padding: 4px 0;
  display: none;
  z-index: 110;
}
.nav__lang-menu.open { display: block; }
.nav__lang-option {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 10px 14px;
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  cursor: pointer;
  text-align: left;
  transition: background 0.15s, color 0.15s;
}
.nav__lang-option:hover { background: var(--hover); color: #ffffff; }
.nav__lang-option--active { color: var(--fg); font-weight: 600; }
.nav__lang-option--active::after {
  content: '•';
  margin-left: 12px;
  font-size: 14px;
  color: var(--fg);
}

.nav__menu-btn { display: none; }

/* ===== MOBILE NAV OVERLAY ===== */
.nav-overlay {
  position: fixed;
  inset: 0;
  background: var(--dark);
  color: var(--dark-fg);
  z-index: 200;
  display: flex;
  flex-direction: column;
  padding: var(--space-lg);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.nav-overlay.open { opacity: 1; pointer-events: all; }
.nav-overlay__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-xl);
}
.nav-overlay__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}
.nav-overlay__link {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(32px, 6vw, 48px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  cursor: pointer;
  color: var(--dark-fg);
  text-align: left;
}
.nav-overlay__link:hover { opacity: 0.6; }

/* ===== BUTTONS ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--fg);
  color: var(--surface);
  padding: 14px 32px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: opacity 0.2s;
}
.btn-primary:hover { background: var(--hover); color: #ffffff; opacity: 1; }
.btn-outline {
  display: inline-block;
  border: 1px solid var(--fg);
  color: var(--fg);
  padding: 10px 20px;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: background 0.2s, color 0.2s;
}
.btn-outline:hover { background: var(--hover); color: #ffffff; border-color: var(--hover); }

/* ===== FOOTER ===== */
.footer {
  background: var(--dark);
  color: var(--dark-fg);
  padding: var(--space-xl) var(--space-md) var(--space-lg);
}
.footer__top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr 1.2fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}
.footer__logo {
  width: 160px;
  height: auto;
  display: block;
  /* Footer is on a dark surface; invert the dark wordmark to white. */
  filter: invert(1) brightness(2);
}
.footer__brand-name {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
}
.footer__tagline {
  font-family: var(--font-display);
  font-weight: 500;
  font-style: italic;
  /* 50% of the previous 20px size. */
  font-size: 10px;
  line-height: 1.4;
  letter-spacing: -0.01em;
}
.footer__sub {
  font-size: 13px;
  color: oklch(70% 0.01 60);
  line-height: 1.6;
}
.footer__col-title {
  font-size: 10px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: oklch(60% 0.01 60);
  margin-bottom: var(--space-sm);
  font-weight: 500;
}
.footer__link {
  display: block;
  font-size: 14px;
  color: var(--dark-fg);
  margin-bottom: var(--space-xs);
  transition: opacity 0.2s;
}
.footer__link:hover { opacity: 0.6; }
.footer__email-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid oklch(30% 0.01 60);
  padding-top: var(--space-sm);
  margin-top: var(--space-sm);
}
.footer__email {
  font-size: 14px;
  color: var(--dark-fg);
  transition: opacity 0.2s;
}
.footer__email:hover { opacity: 0.6; }
.footer__arrow { font-size: 18px; color: var(--dark-fg); }
.footer__legal {
  max-width: var(--max-w);
  margin: 0 auto;
  padding-top: var(--space-md);
  border-top: 1px solid oklch(28% 0.01 60);
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: oklch(55% 0.01 60);
}
.footer__legal a:hover { color: var(--dark-fg); }

.footer__regions {
  max-width: var(--max-w);
  margin: 0 auto;
  padding-top: var(--space-md);
  padding-bottom: var(--space-md);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 20px;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: oklch(55% 0.01 60);
}
.footer__regions-label { opacity: 0.7; }
.footer__regions a {
  color: oklch(75% 0.01 60);
  text-decoration: none;
  transition: color 0.2s;
}
.footer__regions a:hover { color: var(--dark-fg); }

/* ===== MEGA MENU ===== */
.nav__link-wrap { display: inline-flex; align-items: center; height: 100%; }
.nav__link--open { color: var(--accent-strong, oklch(72% 0.18 130)); }
.nav__link--open::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  background: var(--accent-strong, oklch(72% 0.18 130));
}

.nav-mega {
  position: fixed;
  top: var(--nav-h);
  left: 0; right: 0;
  z-index: 99;
  display: grid;
  grid-template-rows: 0fr;
  opacity: 0;
  transition: grid-template-rows 340ms cubic-bezier(.22,.61,.36,1),
              opacity 260ms cubic-bezier(.22,.61,.36,1);
  pointer-events: none;
}
.nav-mega--open {
  grid-template-rows: 1fr;
  opacity: 1;
  pointer-events: auto;
}
.nav-mega__inner {
  min-height: 0;
  overflow: hidden;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 24px 56px rgba(0,0,0,0.06);
}
.nav-mega__grid {
  display: flex;
  gap: 48px;
  padding: 40px clamp(24px, 5vw, 56px) 48px;
  max-width: 1440px;
  margin: 0 auto;
  align-items: flex-start;
}
.nav-mega__col { flex: 1 1 0; min-width: 0; }
.nav-mega__col-title {
  font-family: var(--font-body);
  font-size: 14px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg);
  margin-top: 22px;
  margin-bottom: 22px;
  font-weight: 600;
}
.nav-mega__list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
.nav-mega__link {
  display: inline-block;
  font-size: 14px;
  color: var(--fg);
  text-decoration: none;
  transition: color 160ms ease, transform 160ms ease;
}
.nav-mega__link:hover { color: var(--hover); transform: translateX(4px); }

/* Caps columns (By Category, By Skin Concern) — uppercase, tracked items */
.nav-mega__col--caps .nav-mega__link {
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 13px;
  font-weight: 500;
}

/* Disabled / coming-soon items */
.nav-mega__link--disabled {
  color: var(--muted);
  text-decoration: line-through;
  cursor: default;
  pointer-events: none;
  opacity: 0.55;
}
.nav-mega__link--disabled:hover {
  color: var(--muted);
  transform: none;
}

/* Features block: image cards row + bottom-right CTA */
.nav-mega__features {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 18px;
}
.nav-mega__features-row {
  display: flex;
  gap: 16px;
}
.nav-mega__feature {
  display: block;
  text-decoration: none;
  color: inherit;
  width: 200px;
}
.nav-mega__feature-img {
  aspect-ratio: 1/1;
  background: var(--accent, #ffffff);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 10px;
  position: relative;
}
.nav-mega__feature-img img {
  width: 100%; height: 100%;
  object-fit: cover; display: block;
  transition: transform 600ms cubic-bezier(.22,.61,.36,1);
}
.nav-mega__feature:hover .nav-mega__feature-img img { transform: scale(1.04); }
.nav-mega__feature-name {
  font-size: 14px;
  line-height: 1.35;
  color: var(--fg);
  white-space: pre-line;
}
.nav-mega__cta {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--fg);
  text-decoration: none;
  transition: color 160ms ease;
}
.nav-mega__cta:hover { color: var(--hover); }

.nav-mega__backdrop {
  position: fixed;
  top: var(--nav-h);
  left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.18);
  z-index: 98;
  pointer-events: none;
  animation: nav-mega-fade-in 260ms ease;
}
@keyframes nav-mega-fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@media (max-width: 1100px) {
  .nav-mega__features { display: none; }
  .nav-mega__col { flex: 1 1 33%; }
}
@media (max-width: 900px) {
  .nav-mega { display: none; }
}

/* ===== CHROME-ONLY TYPE TRACKING (-35 / -0.035em) =====
   Scoped to nav, nav dropdown (mega menu + mobile overlay) and footer.
   Placed at end-of-file so it wins the cascade against per-element
   trackings declared earlier in this stylesheet. */
.nav,
.nav *,
.nav-mega,
.nav-mega *,
.nav-overlay,
.nav-overlay *,
.footer,
.footer * {
  letter-spacing: -0.035em;
}