.bio-header {
  position: sticky;
  top: 0;
  z-index: 50;
  width: 100%;
  background: rgba(251,249,248,.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(191,201,196,.4);
  box-shadow: var(--shadow-sm);
}

.bio-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 74px;
  gap: 28px;
}

.bio-logo {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-head);
  font-size: 26px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: -.01em;
  white-space: nowrap;
}

.bio-nav {
  display: none;
  gap: 32px;
  align-items: center;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.bio-nav a {
  position: relative;
  color: var(--on-surface-variant);
  padding-block: 26px;
  transition: color .2s;
}

.bio-nav a:hover {
  color: var(--primary);
}

.bio-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 20px;
  height: 2px;
  background: var(--gold-dim);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform .2s;
}

.bio-nav a:hover::after,
.bio-nav a.is-active::after {
  transform: scaleX(1);
}

.bio-nav a.is-active {
  color: var(--primary);
  font-weight: 700;
}

.bio-header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.bio-icon-btn {
  position: relative;
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--r-full);
  color: var(--on-surface-variant);
  transition: background .2s, color .2s, transform .1s;
}

.bio-icon-btn:hover {
  background: rgba(0,52,43,.08);
  color: var(--primary);
}

.bio-icon-btn:active {
  transform: scale(.95);
}

.bio-cart-count {
  position: absolute;
  top: 3px;
  right: 2px;
  min-width: 18px;
  height: 18px;
  padding-inline: 5px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--r-full);
  background: var(--gold-dim);
  color: #3a2f00;
  font-size: 10px;
  font-weight: 700;
}

@media (min-width: 768px) {
  .bio-nav {
    display: flex;
  }
}

@media (max-width: 767px) {
  .bio-header-inner {
    min-height: 66px;
  }

  .bio-logo {
    font-size: 22px;
  }

  .bio-header-actions {
    gap: 4px;
  }
}