.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.9);
  border-bottom: 1px solid rgba(215, 236, 231, 0.9);
  backdrop-filter: blur(18px);
}

.header-inner {
  min-height: 88px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand img {
  width: 270px;
  height: auto;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.main-nav a {
  padding: 10px 15px;
  border-radius: 999px;
  color: var(--text);
  font-size: 0.94rem;
  font-weight: 900;
  transition: 0.2s ease;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--green-dark);
  background: var(--mint);
}

.main-nav .nav-cta {
  color: var(--white);
  background: var(--green-dark);
}

.main-nav .nav-cta:hover,
.main-nav .nav-cta.active {
  color: var(--white);
  background: var(--green-deep);
}

.nav-toggle,
.nav-close {
  display: none;
  border: 0;
  background: none;
  cursor: pointer;
}

.nav-toggle {
  width: 48px;
  height: 48px;
  border-radius: 17px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  background: var(--mint);
}

.nav-toggle span {
  width: 23px;
  height: 2px;
  border-radius: 99px;
  background: var(--green-dark);
}

.nav-close {
  align-self: flex-end;
  width: 46px;
  height: 46px;
  justify-content: center;
  align-items: center;
  color: var(--text);
  font-size: 2rem;
}

.nav-overlay {
  position: fixed;
  inset: 0;
  z-index: 900;
  opacity: 0;
  visibility: hidden;
  background: rgba(11, 44, 42, 0.48);
  transition: 0.25s ease;
}

body.nav-open .nav-overlay {
  opacity: 1;
  visibility: visible;
}