/* ========================================
   HEADER - Top Bar, Main Nav, Search, Mobile
   ======================================== */

/* Top Bar */
.topbar {
  background-color: var(--color-primary-dark);
  color: rgba(255,255,255,0.85);
  font-size: var(--text-xs);
  padding: var(--space-2) 0;
  letter-spacing: 0.02em;
}
.topbar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.topbar-tagline {
  font-weight: var(--font-weight-medium);
}
.topbar-right {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

/* Language Switcher */
.lang-switcher {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}
.lang-option {
  color: rgba(255,255,255,0.6);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-medium);
  text-decoration: none;
  padding: 2px 4px;
  transition: color var(--transition-fast);
}
.lang-option.active {
  color: #fff;
  font-weight: var(--font-weight-bold);
}
.lang-option:hover {
  color: #fff;
}
.lang-sep {
  color: rgba(255,255,255,0.3);
  font-size: var(--text-xs);
}

/* Main Header */
.header-main {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}
.header-main-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) 0;
  gap: var(--space-6);
}

/* Logo */
.header-logo {
  display: flex;
  align-items: baseline;
  gap: var(--space-1);
  text-decoration: none;
  flex-shrink: 0;
}
.logo-text {
  font-size: var(--text-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  letter-spacing: -0.02em;
}
.logo-sub {
  font-size: var(--text-lg);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
}

/* Navigation */
.header-nav {
  display: flex;
  align-items: center;
  gap: var(--space-5);
}
.nav-link {
  color: var(--color-text);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  text-decoration: none;
  padding: var(--space-2) 0;
  position: relative;
  transition: color var(--transition-fast);
}
.nav-link:hover {
  color: var(--color-primary);
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  transition: width var(--transition-base);
}
.nav-link:hover::after {
  width: 100%;
}

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}
.header-action-btn {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text);
  text-decoration: none;
  padding: var(--space-2);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  background: none;
  border: none;
  cursor: pointer;
  font-size: var(--text-sm);
  position: relative;
}
.header-action-btn:hover {
  color: var(--color-primary);
  background-color: var(--color-surface-alt);
}
.header-action-label {
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
}
.header-wa-btn {
  color: var(--color-whatsapp);
}
.header-wa-btn:hover {
  background-color: rgba(37,211,102,0.08);
  color: var(--color-whatsapp);
}
.header-quote-btn {
  margin-left: var(--space-2);
}

/* Cart Badge */
.cart-badge {
  position: absolute;
  top: -2px;
  right: -2px;
  background-color: var(--color-primary);
  color: #fff;
  font-size: 10px;
  font-weight: var(--font-weight-bold);
  min-width: 18px;
  height: 18px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
  line-height: 1;
}

/* Sticky Header */
#app-header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background-color: var(--color-surface);
}
.site-header {
  background-color: var(--color-surface);
}
.site-header.scrolled {
  box-shadow: var(--shadow-md);
}
.site-header.scrolled .topbar {
  display: none;
}

/* Search Bar */
.header-search {
  display: none;
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: var(--space-4) 0;
}
.header-search.active {
  display: block;
}
.search-bar {
  display: flex;
  align-items: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--space-2) var(--space-4);
  gap: var(--space-3);
  background: var(--color-surface);
}
.search-bar input {
  flex: 1;
  border: none;
  outline: none;
  font-size: var(--text-sm);
  font-family: var(--font-family);
  background: transparent;
  color: var(--color-text);
}
.search-bar input::placeholder {
  color: var(--color-text-secondary);
}
.search-close {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text-secondary);
  padding: var(--space-1);
  display: flex;
}
.search-close:hover {
  color: var(--color-text);
}
.search-results {
  margin-top: var(--space-3);
}
.search-result-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  text-decoration: none;
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition-fast);
}
.search-result-item:hover {
  background-color: var(--color-surface-alt);
}
.search-result-item img {
  width: 48px;
  height: 48px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  background-color: var(--color-surface-alt);
}
.search-result-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.search-result-name {
  color: var(--color-text);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
}
.search-result-price {
  color: var(--color-primary);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
}
.search-no-results {
  padding: var(--space-4);
  text-align: center;
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
}

/* Mobile Navigation */
.mobile-nav {
  position: fixed;
  top: 0;
  right: -320px;
  width: 320px;
  max-width: 85vw;
  height: 100vh;
  background-color: var(--color-surface);
  z-index: var(--z-modal);
  transition: right var(--transition-base);
  display: flex;
  flex-direction: column;
  box-shadow: -4px 0 20px rgba(0,0,0,0.1);
}
.mobile-nav.active {
  right: 0;
}
.mobile-nav-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5);
  border-bottom: 1px solid var(--color-border);
}
.mobile-nav-close {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text);
  padding: var(--space-2);
}
.mobile-nav-links {
  display: flex;
  flex-direction: column;
  flex: 1;
  overflow-y: auto;
  padding: var(--space-4) 0;
}
.mobile-nav-link {
  display: block;
  padding: var(--space-4) var(--space-5);
  color: var(--color-text);
  font-size: var(--text-base);
  font-weight: var(--font-weight-medium);
  text-decoration: none;
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition-fast);
}
.mobile-nav-link:hover {
  background-color: var(--color-surface-alt);
  color: var(--color-primary);
}
.mobile-nav-wa {
  color: var(--color-whatsapp);
  font-weight: var(--font-weight-semibold);
}
.mobile-nav-lang {
  padding: var(--space-4) var(--space-5);
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.mobile-nav-lang .lang-option {
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
}
.mobile-nav-lang .lang-option.active {
  color: var(--color-primary);
  font-weight: var(--font-weight-bold);
}
.mobile-nav-lang .lang-sep {
  color: var(--color-border);
}
.mobile-nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background-color: rgba(0,0,0,0.4);
  z-index: calc(var(--z-modal) - 1);
}
.mobile-nav-overlay.active {
  display: block;
}