.site-header {
  background: rgba(255,255,255,.88);
  border-bottom: 1px solid rgba(230,237,245,.7);
  left: 0;
  position: fixed;
  right: 0;
  top: 0;
  transition: box-shadow .2s ease, background .2s ease;
  z-index: 500;
}
.site-header.is-scrolled { background: white; box-shadow: 0 12px 28px rgba(6, 27, 58, .08); }
.header-inner {
  align-items: center;
  display: flex;
  gap: 18px;
  min-height: 78px;
}
.brand { align-items: center; display: flex; flex-shrink: 0; }
.brand img { height: 60px; object-fit: contain; width: auto; }
.main-nav { align-items: center; display: flex; gap: 18px; margin-left: auto; }
.main-nav a { color: var(--color-navy); font-size: .94rem; font-weight: 800; }
.main-nav a:hover, .main-nav a.is-active { color: var(--color-blue); }
.header-actions { align-items: center; display: flex; gap: 10px; }
.icon-button {
  align-items: center;
  background: white;
  border: 1px solid var(--color-line);
  border-radius: 999px;
  color: var(--color-navy);
  display: inline-flex;
  height: 42px;
  justify-content: center;
  position: relative;
  width: 42px;
}
.cart-count {
  align-items: center;
  background: var(--color-green);
  border-radius: 999px;
  color: var(--color-navy);
  display: flex;
  font-size: .72rem;
  font-weight: 900;
  height: 19px;
  justify-content: center;
  min-width: 19px;
  padding: 0 5px;
  position: absolute;
  right: -5px;
  top: -6px;
}
.menu-toggle { display: none; }