.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 120;
  height: var(--header-height);
  border-bottom: 1px solid rgba(13, 61, 28, 0.08);
  background: rgba(251, 250, 246, 0.91);
  backdrop-filter: blur(16px);
  transition: background-color 0.25s ease, box-shadow 0.25s ease;
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.97);
  box-shadow: 0 9px 30px rgba(10, 40, 19, 0.07);
}

.site-header__inner {
  display: flex;
  height: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.site-header__brand {
  display: inline-flex;
  flex: none;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
}

.site-header__brand-mark {
  width: 49px;
  height: 49px;
  object-fit: contain;
}

.site-header__brand-copy {
  display: grid;
  gap: 0.18rem;
}

.site-header__logo {
  color: var(--lea-charcoal);
  font-family: var(--font-display);
  font-size: 1.28rem;
  font-weight: 700;
  line-height: 1;
}

.site-header__tag {
  color: var(--lea-green);
  font-size: 0.58rem;
  font-weight: 600;
  line-height: 1;
  text-transform: uppercase;
}

.site-header__nav {
  display: flex;
  align-items: center;
  gap: clamp(1.3rem, 2.4vw, 2.4rem);
}

.site-header__link {
  position: relative;
  padding: 0.65rem 0;
  color: var(--lea-ink-soft);
  font-size: 0.79rem;
  font-weight: 600;
  text-decoration: none;
  text-transform: uppercase;
}

.site-header__link::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0.2rem;
  left: 0;
  height: 2px;
  background: var(--lea-gold);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s var(--ease-birth);
}

.site-header__link:hover,
.site-header__link.is-active {
  color: var(--lea-green-deep);
}

.site-header__link:hover::after,
.site-header__link.is-active::after {
  transform: scaleX(1);
  transform-origin: left;
}

.site-header__burger {
  display: none;
  width: 44px;
  height: 44px;
  padding: 11px 8px;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.site-header__burger span {
  display: block;
  width: 100%;
  height: 2px;
  margin: 5px 0;
  background: var(--lea-charcoal);
  transition: transform 0.25s ease, opacity 0.2s ease;
}

.site-header__burger.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.site-header__burger.is-open span:nth-child(2) {
  opacity: 0;
}

.site-header__burger.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.mobile-nav {
  position: fixed;
  inset: var(--header-height) 0 0;
  z-index: 110;
  display: grid;
  visibility: hidden;
  overflow-y: auto;
  place-items: center;
  padding: 2rem 1.5rem;
  background:
    radial-gradient(circle at 92% 10%, rgba(226, 173, 8, 0.12), transparent 28%),
    linear-gradient(145deg, var(--lea-ivory), var(--lea-ivory-deep));
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}

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

.mobile-nav__inner {
  width: min(100%, 420px);
}

.mobile-nav__eyebrow {
  margin: 0 0 1.3rem;
  color: var(--lea-gold-text);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
}

.mobile-nav__link {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  padding: 0.7rem 0;
  border-bottom: 1px solid rgba(13, 61, 28, 0.12);
  color: var(--lea-green-deep);
  font-family: var(--font-display);
  font-size: clamp(2rem, 9vw, 3rem);
  font-weight: 500;
  line-height: 1;
  text-decoration: none;
}

.mobile-nav__link span {
  color: var(--lea-gold-text);
  font-family: var(--font-body);
  font-size: 0.66rem;
  font-weight: 600;
}

.mobile-nav__link.is-active {
  color: var(--lea-green);
}

.mobile-nav__motto {
  margin: 2rem 0 0;
  color: var(--lea-ink-soft);
  font-size: 0.76rem;
  font-weight: 600;
  text-transform: uppercase;
}

@media (max-width: 820px) {
  .site-header__nav {
    display: none;
  }

  .site-header__burger {
    display: block;
  }

  .site-header__brand-mark {
    width: 43px;
    height: 43px;
  }
}

@media (max-width: 390px) {
  .site-header__tag {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-header,
  .site-header__link::after,
  .site-header__burger span,
  .mobile-nav {
    transition: none;
  }
}