.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: var(--z-header);
  padding-block: 20px;
  background: transparent;
  border-bottom: 1px solid transparent;
  backdrop-filter: none;
  transition: background var(--dur-base) var(--ease), border-color var(--dur-base) var(--ease), padding var(--dur-base) var(--ease), backdrop-filter var(--dur-base) var(--ease);
}
.site-header.is-scrolled {
  background: rgba(5, 5, 5, 0.72);
  backdrop-filter: blur(14px);
  border-bottom-color: var(--border);
  padding-block: 14px;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 18px;
  letter-spacing: 0.06em;
}
.brand img { width: 26px; height: 26px; }

.main-nav {
  display: flex;
  gap: clamp(16px, 2vw, 32px);
}
.main-nav a {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--silver);
  padding-block: 6px;
  border-bottom: 1px solid transparent;
  transition: color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}
.main-nav a:hover, .main-nav a[aria-current="page"] {
  color: var(--off-white);
  border-color: var(--off-white);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 18px;
}

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  color: var(--off-white);
  transition: background var(--dur-fast) var(--ease);
}
.icon-btn:hover { background: rgba(255,255,255,0.08); }
.icon-btn svg { width: 18px; height: 18px; }

.saved-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  min-height: 40px;
  transition: border-color var(--dur-fast) var(--ease);
}
.saved-pill:hover { border-color: var(--light-silver); }

.mobile-menu-btn { display: none; }

.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--near-black);
  z-index: calc(var(--z-header) - 1);
  flex-direction: column;
  padding: 96px var(--gutter) 40px;
  gap: 8px;
  transform: translateY(-100%);
  transition: transform var(--dur-base) var(--ease);
}
.mobile-nav.is-open { transform: translateY(0); }
.mobile-nav a {
  font-family: var(--font-heading);
  font-size: 28px;
  font-weight: 800;
  text-transform: uppercase;
  padding-block: 12px;
  border-bottom: 1px solid var(--border);
}

@media (max-width: 900px) {
  .main-nav { display: none; }
  .mobile-menu-btn { display: inline-flex; }
  .mobile-nav { display: flex; }
}