/* ==========================================================================
   MotoTransfer – Header & Navigation (Light)
   ========================================================================== */

.site-header {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: var(--z-nav);
  padding: var(--space-5) 0;
  transition: padding var(--transition-base), background var(--transition-base),
              box-shadow var(--transition-base);
}
.site-header.is-scrolled {
  padding: var(--space-3) 0;
  background: rgba(250,250,248,0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 var(--color-border-subtle), var(--shadow-sm);
}
.site-header__inner {
  display: flex; align-items: center;
  justify-content: space-between; gap: var(--space-8);
  width: var(--container); margin-inline: auto;
}

/* Logo */
.site-logo {
  display: flex; align-items: center; gap: var(--space-3);
  text-decoration: none; flex-shrink: 0;
}
.site-logo__image {
  height: 2.5rem; width: auto;
  transition: transform var(--transition-spring);
}
.site-logo:hover .site-logo__image { transform: scale(1.05); }
.site-logo__text {
  font-family: var(--font-display); font-size: var(--fs-lg);
  font-weight: var(--fw-black); color: var(--color-text);
  letter-spacing: var(--ls-snug); line-height: 1;
}
.site-logo__text span {
  display: block; font-family: var(--font-body); font-size: var(--fs-xs);
  font-weight: var(--fw-medium); letter-spacing: var(--ls-widest);
  text-transform: uppercase; color: var(--color-amber); margin-top: 2px;
}

/* Desktop nav */
.site-nav { display: none; align-items: center; gap: var(--space-8); }
@media (min-width: 1024px) { .site-nav { display: flex; } }

.site-nav__menu { display: flex; align-items: center; gap: var(--space-6); list-style: none; }
.site-nav__link {
  font-size: var(--fs-sm); font-weight: var(--fw-medium);
  letter-spacing: var(--ls-wide); text-transform: uppercase;
  color: var(--color-text-muted); text-decoration: none;
  position: relative; padding-bottom: var(--space-1);
  transition: color var(--transition-fast);
}
.site-nav__link::after {
  content: ''; position: absolute; bottom: 0; left: 0;
  width: 0; height: 2px;
  background: var(--color-amber); border-radius: var(--radius-pill);
  transition: width var(--transition-base);
}
.site-nav__link:hover,
.site-nav__link.is-active { color: var(--color-text); }
.site-nav__link:hover::after,
.site-nav__link.is-active::after { width: 100%; }

/* Header actions */
.site-header__actions { display: flex; align-items: center; gap: var(--space-3); }

/* WC icons: hidden on mobile, visible on desktop only */
@media (max-width: 1023px) {
  .header-action-btn--desktop,
  .header-cart--desktop { display: none !important; }
}

.header-action-btn {
  display: flex; align-items: center; justify-content: center;
  width: 2.25rem; height: 2.25rem;
  border-radius: var(--radius-pill);
  color: var(--color-text-muted); font-size: var(--fs-md);
  text-decoration: none; position: relative;
  transition: color var(--transition-fast), background var(--transition-fast);
}
.header-action-btn:hover { color: var(--color-amber); background: var(--color-amber-glow2); }

.header-cart {
  display: flex; align-items: center; gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border: 1.5px solid var(--color-border-subtle);
  border-radius: var(--radius-pill);
  color: var(--color-text-muted); font-size: var(--fs-sm);
  transition: border-color var(--transition-fast), color var(--transition-fast),
              background var(--transition-fast);
  text-decoration: none; position: relative;
}
.header-cart:hover {
  border-color: var(--color-amber);
  color: var(--color-amber);
  background: var(--color-amber-glow2);
}
.header-cart__count {
  position: absolute; top: -0.4rem; right: -0.4rem;
  width: 1.2rem; height: 1.2rem; border-radius: var(--radius-pill);
  background: var(--color-amber); color: var(--color-white);
  font-size: 0.65rem; font-weight: var(--fw-bold);
  display: flex; align-items: center; justify-content: center; line-height: 1;
}

/* Hamburger */
.hamburger {
  display: flex; flex-direction: column; justify-content: center;
  align-items: center; gap: 5px;
  width: 2.5rem; height: 2.5rem; padding: 0;
  background: transparent; border: none; cursor: pointer;
  position: relative; z-index: var(--z-overlay);
}
@media (min-width: 1024px) { .hamburger { display: none; } }

.hamburger__line {
  display: block; width: 1.4rem; height: 1.5px;
  background: var(--color-text); border-radius: var(--radius-pill);
  transform-origin: center;
  transition: transform var(--transition-base), opacity var(--transition-fast),
              background-color var(--transition-fast);
}
.hamburger.is-active .hamburger__line:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg); background: var(--color-amber);
}
.hamburger.is-active .hamburger__line:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.is-active .hamburger__line:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg); background: var(--color-amber);
}

/* Mobile menu */
.mobile-menu {
  position: fixed; inset: 0;
  z-index: calc(var(--z-nav) - 1);
  background: rgba(250,250,248,0.97);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  display: flex; flex-direction: column;
  justify-content: center; align-items: center; gap: var(--space-8);
  opacity: 0; visibility: hidden;
  transition: opacity var(--transition-slow), visibility var(--transition-slow);
}
.mobile-menu.is-open { opacity: 1; visibility: visible; }
.mobile-menu__nav { display: flex; flex-direction: column; align-items: center; gap: var(--space-2); list-style: none; }
.mobile-menu__link {
  font-family: var(--font-display); font-size: clamp(2rem, 8vw, 3.5rem);
  font-weight: var(--fw-black); color: var(--color-text-muted);
  text-decoration: none; letter-spacing: var(--ls-tight);
  transition: color var(--transition-fast); line-height: var(--lh-tight);
}
.mobile-menu__link:hover { color: var(--color-amber); }
.mobile-menu__social { display: flex; gap: var(--space-6); }
.mobile-menu__social-link {
  font-size: var(--fs-xl); color: var(--color-text-muted);
  transition: color var(--transition-fast);
}
.mobile-menu__social-link:hover { color: var(--color-amber); }
.mobile-menu__item { overflow: hidden; }
.mobile-menu__item-inner {
  transform: translateY(100%);
  transition: transform 0.55s cubic-bezier(0.4,0,0.2,1);
}
.mobile-menu.is-open .mobile-menu__item-inner { transform: translateY(0); }
.mobile-menu__item:nth-child(1) .mobile-menu__item-inner { transition-delay: 0.04s; }
.mobile-menu__item:nth-child(2) .mobile-menu__item-inner { transition-delay: 0.08s; }
.mobile-menu__item:nth-child(3) .mobile-menu__item-inner { transition-delay: 0.12s; }
.mobile-menu__item:nth-child(4) .mobile-menu__item-inner { transition-delay: 0.16s; }
.mobile-menu__item:nth-child(5) .mobile-menu__item-inner { transition-delay: 0.20s; }
.mobile-menu__item:nth-child(6) .mobile-menu__item-inner { transition-delay: 0.24s; }

/* Mobile menu – WC actions */
.mobile-menu__wc-actions {
  display: flex; flex-direction: column; gap: var(--space-2);
  width: 100%; padding: var(--space-4) var(--space-8);
  border-top: 1px solid rgba(255,255,255,0.06);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  margin-bottom: var(--space-2);
}
.mobile-menu__wc-link {
  display: flex; align-items: center; gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  color: rgba(255,255,255,0.7); text-decoration: none;
  font-size: var(--fs-sm); font-weight: var(--fw-medium);
  transition: background var(--transition-fast), color var(--transition-fast);
}
.mobile-menu__wc-link:hover { background: rgba(255,255,255,0.06); color: var(--color-amber); }
.mobile-menu__wc-link i { color: var(--color-amber); width: 1.1rem; text-align: center; font-size: var(--fs-md); }
.mobile-menu__wc-count {
  margin-left: auto;
  background: var(--color-amber); color: #fff;
  font-size: var(--fs-xs); font-weight: var(--fw-bold);
  min-width: 1.3rem; height: 1.3rem; border-radius: var(--radius-pill);
  display: flex; align-items: center; justify-content: center; padding: 0 4px;
}