/* ==========================================================================
   HEADER STYLES — PrintForge3D
   ========================================================================== */

/* ── Top bar ─────────────────────────────────────────────────────────────── */
.pf3d-topbar {
  background: var(--pf-bg-elevated);
  border-bottom: 1px solid var(--pf-border);
  padding: 6px 0;
  font-size: var(--pf-text-xs);
  color: var(--pf-text-muted);
}

.pf3d-topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.pf3d-topbar__msg {
  display: flex;
  align-items: center;
  gap: var(--pf-space-2);
}

.pf3d-topbar-icon {
  color: var(--pf-primary);
  width: 14px;
  height: 14px;
}

.pf3d-topbar__phone {
  display: flex;
  align-items: center;
  gap: var(--pf-space-2);
  color: var(--pf-text-muted);
  text-decoration: none;
  font-weight: var(--pf-font-medium);
  transition: color var(--pf-transition-fast);
}

.pf3d-topbar__phone:hover { color: var(--pf-primary); }

/* ── Main Header ─────────────────────────────────────────────────────────── */
.pf3d-header {
  position: relative;
  z-index: var(--pf-z-sticky);
  background: transparent;
  transition: background var(--pf-transition-base), box-shadow var(--pf-transition-base);
}

.pf3d-header.is-sticky {
  position: sticky;
  top: 0;
}

.pf3d-header__main {
  background: rgba(13, 14, 26, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--pf-border);
  transition: box-shadow var(--pf-transition-base);
}

.pf3d-header.scrolled .pf3d-header__main {
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
}

.pf3d-header__inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: var(--pf-space-8);
  height: var(--pf-header-height);
}

/* ── Logo ────────────────────────────────────────────────────────────────── */
.pf3d-header__logo {
  flex-shrink: 0;
}

.pf3d-header__logo a,
.pf3d-logo-text {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.pf3d-header__logo img {
  height: 44px;
  width: auto;
}

.pf3d-logo-text__main {
  font-family: var(--pf-font-heading);
  font-size: var(--pf-text-xl);
  font-weight: var(--pf-font-extrabold);
  color: var(--pf-text-primary);
  letter-spacing: -0.03em;
  background: var(--pf-gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Primary Nav ─────────────────────────────────────────────────────────── */
.pf3d-nav {
  justify-self: center;
}

.pf3d-nav__list {
  display: flex;
  align-items: center;
  gap: 0;
  list-style: none;
  margin: 0;
  padding: 0;
}

.pf3d-nav__list > li {
  position: relative;
}

.pf3d-nav__list > li > a {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0.5rem 1rem;
  font-family: var(--pf-font-heading);
  font-size: var(--pf-text-sm);
  font-weight: var(--pf-font-semibold);
  color: var(--pf-text-secondary);
  text-decoration: none;
  letter-spacing: 0.02em;
  transition: color var(--pf-transition-fast);
  white-space: nowrap;
  position: relative;
}

.pf3d-nav__list > li > a::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 60%;
  height: 2px;
  background: var(--pf-primary);
  border-radius: 2px;
  transition: transform var(--pf-transition-base);
}

.pf3d-nav__list > li:hover > a,
.pf3d-nav__list > li.current-menu-item > a,
.pf3d-nav__list > li.current-menu-parent > a {
  color: var(--pf-text-primary);
}

.pf3d-nav__list > li:hover > a::after,
.pf3d-nav__list > li.current-menu-item > a::after {
  transform: translateX(-50%) scaleX(1);
}

/* Dropdown */
.pf3d-nav__list .sub-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 220px;
  background: var(--pf-bg-elevated);
  border: 1px solid var(--pf-border);
  border-radius: var(--pf-radius-lg);
  padding: var(--pf-space-2);
  list-style: none;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: all var(--pf-transition-base);
  box-shadow: var(--pf-shadow-xl);
  z-index: var(--pf-z-dropdown);
}

.pf3d-nav__list > li:hover .sub-menu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.pf3d-nav__list .sub-menu li a {
  display: block;
  padding: 0.5rem 0.875rem;
  font-size: var(--pf-text-sm);
  color: var(--pf-text-secondary);
  text-decoration: none;
  border-radius: var(--pf-radius-md);
  transition: all var(--pf-transition-fast);
}

.pf3d-nav__list .sub-menu li a:hover {
  background: var(--pf-bg-surface);
  color: var(--pf-text-primary);
  padding-left: 1.25rem;
}

/* ── Header Actions ──────────────────────────────────────────────────────── */
.pf3d-header__actions {
  display: flex;
  align-items: center;
  gap: var(--pf-space-1);
}

.pf3d-header__action-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: transparent;
  border: none;
  border-radius: var(--pf-radius-md);
  color: var(--pf-text-secondary);
  cursor: pointer;
  transition: all var(--pf-transition-fast);
  position: relative;
  text-decoration: none;
}

.pf3d-header__action-btn:hover {
  background: var(--pf-bg-elevated);
  color: var(--pf-text-primary);
}

/* Cart count bubble */
.pf3d-cart-count {
  position: absolute;
  top: 4px;
  right: 4px;
  min-width: 18px;
  height: 18px;
  background: var(--pf-primary);
  color: #fff;
  font-size: 10px;
  font-weight: var(--pf-font-bold);
  border-radius: var(--pf-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
  opacity: 0;
  transform: scale(0);
  transition: all var(--pf-transition-spring);
  pointer-events: none;
}

.pf3d-cart-count.has-items {
  opacity: 1;
  transform: scale(1);
}

/* Hamburger */
.pf3d-mobile-toggle { display: none; }

.pf3d-hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 22px;
  height: 22px;
}

.pf3d-hamburger span {
  display: block;
  height: 2px;
  background: var(--pf-text-secondary);
  border-radius: 2px;
  transition: all var(--pf-transition-base);
  transform-origin: center;
}

.pf3d-mobile-toggle[aria-expanded="true"] .pf3d-hamburger span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.pf3d-mobile-toggle[aria-expanded="true"] .pf3d-hamburger span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.pf3d-mobile-toggle[aria-expanded="true"] .pf3d-hamburger span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ── Search Overlay ──────────────────────────────────────────────────────── */
.pf3d-search-overlay {
  position: fixed;
  inset: 0;
  background: rgba(13, 14, 26, 0.95);
  backdrop-filter: blur(12px);
  z-index: var(--pf-z-modal);
  display: flex;
  align-items: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--pf-transition-base);
}

.pf3d-search-overlay.is-open {
  opacity: 1;
  visibility: visible;
}

.pf3d-search-overlay__inner {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--pf-space-4);
}

.pf3d-search-form {
  display: flex;
  align-items: center;
  width: 100%;
  max-width: 700px;
  margin: 0 auto;
  border-bottom: 2px solid var(--pf-border-light);
}

.pf3d-search-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  font-family: var(--pf-font-heading);
  font-size: var(--pf-text-3xl);
  font-weight: var(--pf-font-bold);
  color: var(--pf-text-primary);
  padding: var(--pf-space-4) 0;
  caret-color: var(--pf-primary);
}

.pf3d-search-input::placeholder { color: var(--pf-text-muted); }

.pf3d-search-submit {
  background: transparent;
  border: none;
  color: var(--pf-primary);
  cursor: pointer;
  padding: var(--pf-space-3);
  transition: transform var(--pf-transition-fast);
}

.pf3d-search-submit:hover { transform: scale(1.15); }

.pf3d-search-close {
  position: absolute;
  top: -60px;
  right: 0;
  background: transparent;
  border: none;
  color: var(--pf-text-muted);
  cursor: pointer;
  padding: var(--pf-space-2);
  transition: color var(--pf-transition-fast);
}

.pf3d-search-close:hover { color: var(--pf-text-primary); }

/* ── Mobile Menu Drawer ──────────────────────────────────────────────────── */
.pf3d-mobile-menu {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(340px, 90vw);
  background: var(--pf-bg-surface);
  border-left: 1px solid var(--pf-border);
  z-index: var(--pf-z-modal);
  transform: translateX(100%);
  transition: transform var(--pf-transition-slow);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

.pf3d-mobile-menu.is-open {
  transform: translateX(0);
}

.pf3d-mobile-menu__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--pf-space-5) var(--pf-space-6);
  border-bottom: 1px solid var(--pf-border);
}

.pf3d-mobile-menu__close {
  background: transparent;
  border: none;
  color: var(--pf-text-muted);
  cursor: pointer;
  padding: var(--pf-space-2);
  border-radius: var(--pf-radius-md);
  transition: all var(--pf-transition-fast);
}

.pf3d-mobile-menu__close:hover {
  background: var(--pf-bg-elevated);
  color: var(--pf-text-primary);
}

.pf3d-mobile-nav {
  flex: 1;
  padding: var(--pf-space-4) var(--pf-space-4);
}

.pf3d-mobile-nav__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.pf3d-mobile-nav__list li a {
  display: block;
  padding: 0.875rem var(--pf-space-4);
  font-family: var(--pf-font-heading);
  font-size: var(--pf-text-base);
  font-weight: var(--pf-font-semibold);
  color: var(--pf-text-secondary);
  text-decoration: none;
  border-radius: var(--pf-radius-md);
  transition: all var(--pf-transition-fast);
}

.pf3d-mobile-nav__list li a:hover,
.pf3d-mobile-nav__list li.current-menu-item > a {
  background: var(--pf-bg-elevated);
  color: var(--pf-primary);
  padding-left: calc(var(--pf-space-4) + 4px);
}

.pf3d-mobile-nav__list .sub-menu {
  list-style: none;
  padding: 0 0 0 var(--pf-space-4);
  margin: 0;
}

.pf3d-mobile-nav__list .sub-menu a {
  font-size: var(--pf-text-sm);
  padding: 0.5rem var(--pf-space-4);
}

.pf3d-mobile-menu__footer {
  padding: var(--pf-space-5) var(--pf-space-6);
  border-top: 1px solid var(--pf-border);
  display: flex;
  gap: var(--pf-space-3);
}

.pf3d-mobile-menu__footer .pf-btn {
  flex: 1;
  justify-content: center;
}

/* Overlay */
.pf3d-mobile-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  z-index: calc(var(--pf-z-modal) - 1);
  opacity: 0;
  visibility: hidden;
  transition: all var(--pf-transition-base);
}

.pf3d-mobile-overlay.is-visible {
  opacity: 1;
  visibility: visible;
}