:root {
  --pill-height: 56px;
  --pill-radius: 20px;
  --pill-bg: rgba(255,255,255,0.92);
  --text-dark: #1d1d1f;
  --accent: #C9A84C;
  --accent-hover: #B89435;
}

body > header { display: none !important; }

.product-subnav-wrap {
  position: sticky;
  top: 12px;
  z-index: 900;
  display: flex;
  justify-content: center;
  padding: 0 20px;
  pointer-events: none;
}

.product-subnav {
  pointer-events: auto;
  width: 100%;
  max-width: 1100px;
  height: var(--pill-height);
  border-radius: var(--pill-radius);
  background: var(--pill-bg);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  opacity: 1;
  transform: translateY(0) scale(1);
  transition: height 0.28s cubic-bezier(0.4,0,0.2,1),
              border-radius 0.28s cubic-bezier(0.4,0,0.2,1),
              padding 0.28s cubic-bezier(0.4,0,0.2,1),
              transform 0.28s cubic-bezier(0.4,0,0.2,1);
}

.product-subnav.scrolled {
  height: 44px;
  border-radius: 16px;
  padding: 0 18px;
  transform: scale(0.98);
}

.product-subnav .product-name {
  font-size: 19px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text-dark);
  white-space: nowrap;
  transition: font-size 0.28s cubic-bezier(0.4,0,0.2,1);
}

.product-subnav.scrolled .product-name {
  font-size: 16px;
}

.product-subnav .subnav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.product-subnav .subnav-btn {
  font-size: 14px;
  font-weight: 500;
  padding: 9px 18px;
  border-radius: 999px;
  border: 1px solid rgba(201,168,76,0.55);
  background: transparent;
  color: var(--accent);
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.2s ease, border-color 0.2s ease;
  text-decoration: none;
  display: inline-block;
  transition: background 0.2s ease, border-color 0.2s ease,
              padding 0.28s cubic-bezier(0.4,0,0.2,1),
              font-size 0.28s cubic-bezier(0.4,0,0.2,1);
}

.product-subnav.scrolled .subnav-btn {
  padding: 7px 14px;
  font-size: 13px;
}

.product-subnav .subnav-btn:hover,
.product-subnav .subnav-btn:focus-visible {
  background: rgba(201,168,76,0.12);
}

.product-subnav .subnav-btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.product-subnav .subnav-btn.primary:hover,
.product-subnav .subnav-btn.primary:focus-visible {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

@media (prefers-color-scheme: dark) {
  .product-subnav {
    --pill-bg: rgba(28,28,30,0.92);
    --text-dark: #f5f5f7;
  }
}

@media (max-width: 560px) {
  .product-subnav-wrap { padding: 0 8px; }
  .product-subnav { padding: 0 12px; }
  .product-subnav .product-name { font-size: 17px; }
  .product-subnav .subnav-actions { gap: 7px; }
  .product-subnav .subnav-btn { padding: 7px 10px; font-size: 12px; }
  .product-subnav.scrolled { padding: 0 10px; }
  .product-subnav.scrolled .product-name { font-size: 15px; }
  .product-subnav.scrolled .subnav-actions { gap: 5px; }
  .product-subnav.scrolled .subnav-btn { padding: 6px 8px; font-size: 11px; }
}