/**
 * LUMIÈRE Header Styles
 * Modern sticky header with glassmorphism effect
 * Based on 2024 design trends: sticky positioning, glassmorphism, minimal UI
 */

/* ==================== ANNOUNCEMENT BAR ==================== */
.announcement-bar {
    background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: var(--color-text-inverse);
    padding: var(--space-2) 0;
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    letter-spacing: 0.5px;
    text-align: center;
    position: relative;
    z-index: var(--z-fixed);
    overflow: hidden;
}

.announcement-bar::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    0% { left: -100%; }
    100% { left: 100%; }
}

.announcement-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
    position: relative;
    z-index: 1;
}

.announcement-content .separator {
    opacity: 0.5;
}

/* ==================== NAVIGATION ==================== */
.navbar {
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border-light);
    z-index: var(--z-sticky);
    transition: all var(--transition-base);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-6);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

/* Logo */
.logo {
    font-family: var(--font-heading);
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    letter-spacing: 3px;
    color: var(--color-primary);
    text-transform: uppercase;
    transition: transform var(--transition-fast);
}

.logo:hover {
    transform: scale(1.02);
}

/* Desktop Navigation Links */
.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-8);
    list-style: none;
}

.nav-links a {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-text);
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    padding: var(--space-2) 0;
    transition: color var(--transition-fast);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width var(--transition-base);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--color-accent);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.nav-links .sale-link {
    color: var(--color-error);
}

.nav-links .sale-link:hover {
    color: var(--color-error);
}

/* Navigation Icons */
.nav-icons {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.nav-icon-btn {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    color: var(--color-primary);
    font-size: var(--text-lg);
    transition: all var(--transition-fast);
    position: relative;
}

.nav-icon-btn:hover {
    background: var(--color-secondary);
    color: var(--color-accent);
    transform: scale(1.1);
}

/* Cart Button */
.cart-btn {
    position: relative;
}

.cart-count {
    position: absolute;
    top: -2px;
    right: -2px;
    background: var(--color-accent);
    color: var(--color-primary);
    font-size: var(--text-xs);
    font-weight: var(--font-bold);
    width: 20px;
    height: 20px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

/* User Dropdown */
.user-dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + var(--space-2));
    right: 0;
    background: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    min-width: 200px;
    padding: var(--space-2) 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-base);
    z-index: var(--z-dropdown);
}

.user-dropdown:hover .dropdown-menu,
.dropdown-menu.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu a {
    display: block;
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-sm);
    color: var(--color-text);
    transition: background var(--transition-fast);
}

.dropdown-menu a:hover {
    background: var(--color-secondary);
    color: var(--color-accent);
}

.dropdown-menu hr {
    margin: var(--space-2) 0;
    border: none;
    border-top: 1px solid var(--color-border);
}

/* ==================== SEARCH OVERLAY ==================== */
.search-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    z-index: var(--z-modal);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 15vh;
}

.search-overlay.active {
    opacity: 1;
    visibility: visible;
}

.search-container {
    width: 90%;
    max-width: 600px;
    position: relative;
}

.search-form {
    display: flex;
    gap: var(--space-4);
}

.search-form input {
    flex: 1;
    padding: var(--space-4) var(--space-6);
    font-size: var(--text-xl);
    background: transparent;
    border: none;
    border-bottom: 2px solid var(--color-accent);
    color: var(--color-text-inverse);
    outline: none;
}

.search-form input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.search-form button {
    color: var(--color-accent);
    font-size: var(--text-2xl);
    padding: var(--space-4);
}

.search-close {
    position: absolute;
    top: -60px;
    right: 0;
    color: var(--color-text-inverse);
    font-size: var(--text-2xl);
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    transition: background var(--transition-fast);
}

.search-close:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* ==================== MOBILE MENU ==================== */
.mobile-menu-btn {
    display: none;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    font-size: var(--text-xl);
    color: var(--color-primary);
    border-radius: var(--radius-full);
    transition: background var(--transition-fast);
}

.mobile-menu-btn:hover {
    background: var(--color-secondary);
}

.mobile-menu {
    position: fixed;
    top: 0;
    left: -100%;
    width: 80%;
    max-width: 320px;
    height: 100vh;
    background: var(--color-background);
    z-index: var(--z-modal);
    transition: left var(--transition-base);
    box-shadow: var(--shadow-2xl);
    overflow-y: auto;
}

.mobile-menu.active {
    left: 0;
}

.mobile-menu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) var(--space-6);
    border-bottom: 1px solid var(--color-border);
}

.mobile-menu-header .logo {
    font-size: var(--text-xl);
}

.mobile-menu-close {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-xl);
    color: var(--color-text);
    border-radius: var(--radius-full);
    transition: background var(--transition-fast);
}

.mobile-menu-close:hover {
    background: var(--color-secondary);
}

.mobile-nav-links {
    padding: var(--space-4) 0;
}

.mobile-nav-links li {
    border-bottom: 1px solid var(--color-border-light);
}

.mobile-nav-links a {
    display: block;
    padding: var(--space-4) var(--space-6);
    font-size: var(--text-base);
    font-weight: var(--font-medium);
    color: var(--color-text);
    transition: all var(--transition-fast);
}

.mobile-nav-links a:hover {
    background: var(--color-secondary);
    color: var(--color-accent);
    padding-left: var(--space-8);
}

/* Mobile Menu Overlay */
.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: var(--z-modal-backdrop);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.mobile-menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* ==================== CART SIDEBAR ==================== */
.cart-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: var(--z-modal-backdrop);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.cart-overlay.active {
    opacity: 1;
    visibility: visible;
}

.cart-sidebar {
    position: fixed;
    top: 0;
    right: -400px;
    width: 400px;
    max-width: 90vw;
    height: 100vh;
    background: var(--color-background);
    box-shadow: var(--shadow-2xl);
    z-index: var(--z-modal);
    transition: right var(--transition-base);
    display: flex;
    flex-direction: column;
}

.cart-sidebar.active {
    right: 0;
}

.cart-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) var(--space-6);
    border-bottom: 1px solid var(--color-border);
}

.cart-header h3 {
    font-family: var(--font-heading);
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
}

.cart-close {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-lg);
    color: var(--color-text);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.cart-close:hover {
    background: var(--color-secondary);
    color: var(--color-error);
}

.cart-items {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-4);
}

.cart-item {
    display: flex;
    gap: var(--space-4);
    padding: var(--space-4) 0;
    border-bottom: 1px solid var(--color-border-light);
    animation: slideInRight var(--transition-base);
}

.cart-item img {
    width: 80px;
    height: 100px;
    object-fit: cover;
    border-radius: var(--radius-sm);
}

.cart-item-details {
    flex: 1;
}

.cart-item-details h4 {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-1);
}

.cart-item-variant {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    margin-bottom: var(--space-2);
}

.cart-item-qty {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-2);
}

.qty-btn {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: var(--text-sm);
    font-weight: var(--font-bold);
    transition: all var(--transition-fast);
}

.qty-btn:hover {
    background: var(--color-secondary);
    border-color: var(--color-accent);
}

.cart-item-price {
    font-weight: var(--font-semibold);
    color: var(--color-accent);
}

.cart-item-remove {
    color: var(--color-text-muted);
    font-size: var(--text-sm);
    transition: color var(--transition-fast);
    align-self: flex-start;
}

.cart-item-remove:hover {
    color: var(--color-error);
}

.cart-empty {
    text-align: center;
    padding: var(--space-12) var(--space-6);
}

.cart-empty i {
    font-size: var(--text-4xl);
    color: var(--color-text-muted);
    margin-bottom: var(--space-4);
}

.cart-empty p {
    color: var(--color-text-light);
    margin-bottom: var(--space-6);
}

.cart-footer {
    padding: var(--space-6);
    border-top: 1px solid var(--color-border);
    background: var(--color-secondary);
}

.cart-subtotal {
    display: flex;
    justify-content: space-between;
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-2);
}

.cart-note {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    margin-bottom: var(--space-4);
}

/* ==================== RESPONSIVE DESIGN ==================== */
@media (max-width: 1024px) {
    .nav-links {
        gap: var(--space-6);
    }
    
    .nav-container {
        padding: 0 var(--space-4);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .nav-container {
        height: 60px;
    }
    
    .logo {
        font-size: var(--text-xl);
    }
    
    .nav-icons {
        gap: var(--space-2);
    }
    
    .nav-icon-btn {
        width: 40px;
        height: 40px;
        font-size: var(--text-base);
    }
    
    .cart-sidebar {
        width: 100%;
        max-width: none;
    }
}

@media (max-width: 480px) {
    .announcement-content {
        flex-direction: column;
        gap: var(--space-1);
    }
    
    .announcement-content .separator {
        display: none;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .navbar {
        border-bottom-width: 2px;
    }
    
    .nav-links a::after {
        height: 3px;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    .announcement-bar::before,
    .cart-count {
        animation: none;
    }
    
    .mobile-menu,
    .cart-sidebar,
    .search-overlay {
        transition: none;
    }
}