/* ============================================
   VICTRON ENERGY MOLDOVA - Components
   Header, Footer, Navigation, UI Components
   ============================================ */

/* =========== HEADER =========== */
.site-header {
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    height: var(--header-height);
    transition: box-shadow var(--transition);
}

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

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-6);
}

/* Logo */
.header-logo {
    flex-shrink: 0;
}

.header-logo img {
    height: 32px;
    width: auto;
}

/* Desktop Navigation */
.main-nav {
    display: flex;
    align-items: center;
    height: 100%;
}

.nav-list {
    display: flex;
    align-items: center;
    height: 100%;
    gap: 0;
}

.nav-item {
    position: relative;
    height: 100%;
    display: flex;
    align-items: center;
}

.nav-item > a,
.nav-item > button {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    padding: 0 var(--space-5);
    height: 100%;
    font-size: var(--font-size-sm);
    font-weight: var(--font-medium);
    color: var(--color-text);
    transition: color var(--transition-fast);
    border: none;
    background: none;
    cursor: pointer;
    white-space: nowrap;
}

.nav-item > a:hover,
.nav-item > button:hover,
.nav-item.active > a,
.nav-item.active > button {
    color: var(--color-primary);
}

.nav-item .chevron {
    width: 12px;
    height: 12px;
    transition: transform var(--transition-fast);
    fill: currentColor;
}

.nav-item.mega-open .chevron {
    transform: rotate(180deg);
}

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    flex-shrink: 0;
}

.header-action-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--border-radius);
    color: var(--color-text);
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.header-action-btn:hover {
    background-color: var(--color-bg-gray);
    color: var(--color-primary);
}

.header-action-btn svg {
    width: 20px;
    height: 20px;
}

/* Mobile Menu Toggle */
.mobile-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    cursor: pointer;
}

.mobile-toggle svg {
    width: 24px;
    height: 24px;
}

/* =========== MEGA MENU =========== */
.mega-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    width: 100vw;
    max-width: 1200px;
    background: var(--color-white);
    border-top: 2px solid var(--color-primary);
    box-shadow: var(--shadow-xl);
    padding: var(--space-8) var(--space-8);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition), visibility var(--transition);
    z-index: var(--z-dropdown);
}

.nav-item.mega-open .mega-menu {
    opacity: 1;
    visibility: visible;
}

.mega-menu__grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--space-8);
}

.mega-menu__column h3 {
    font-size: var(--font-size-sm);
    font-weight: var(--font-bold);
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-2);
    border-bottom: 2px solid var(--color-primary);
}

.mega-menu__column ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.mega-menu__column li a {
    display: block;
    padding: var(--space-2) 0;
    font-size: var(--font-size-sm);
    color: var(--color-text);
    transition: color var(--transition-fast), padding-left var(--transition-fast);
}

.mega-menu__column li a:hover {
    color: var(--color-primary);
    padding-left: var(--space-2);
}

/* Discover mega menu - different layout */
.mega-menu--discover .mega-menu__grid {
    grid-template-columns: repeat(4, 1fr);
}

/* Info mega menu */
.mega-menu--info .mega-menu__grid {
    grid-template-columns: repeat(3, 1fr);
}

/* =========== MOBILE NAVIGATION =========== */
.mobile-nav {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: var(--color-white);
    z-index: var(--z-overlay);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    transform: translateX(-100%);
    transition: transform var(--transition-normal);
}

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

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

.mobile-nav__close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
}

.mobile-nav__close svg {
    width: 24px;
    height: 24px;
}

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

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

.mobile-nav__item > a,
.mobile-nav__item > button {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: var(--space-4) var(--space-6);
    font-size: var(--font-size-base);
    font-weight: var(--font-medium);
    color: var(--color-text);
    background: none;
    border: none;
    cursor: pointer;
    text-align: left;
}

.mobile-nav__item > button .chevron {
    width: 16px;
    height: 16px;
    transition: transform var(--transition-fast);
}

.mobile-nav__item.is-expanded > button .chevron {
    transform: rotate(180deg);
}

.mobile-nav__sub {
    display: none;
    padding: 0 var(--space-6) var(--space-4);
}

.mobile-nav__item.is-expanded .mobile-nav__sub {
    display: block;
}

.mobile-nav__sub-title {
    font-size: var(--font-size-xs);
    font-weight: var(--font-bold);
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: var(--space-3) var(--space-4);
    margin-top: var(--space-2);
}

.mobile-nav__sub a {
    display: block;
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.mobile-nav__sub a:hover {
    color: var(--color-primary);
}

/* =========== FOOTER =========== */
.site-footer {
    background-color: var(--color-navy);
    color: rgba(255, 255, 255, 0.8);
}

.footer-main {
    padding: var(--space-16) 0 var(--space-8);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--space-8);
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.footer-column h4 {
    font-size: var(--font-size-sm);
    font-weight: var(--font-bold);
    color: var(--color-white);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-4);
}

.footer-column ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.footer-column a {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.6);
    transition: color var(--transition-fast);
}

.footer-column a:hover {
    color: var(--color-white);
}

/* Footer Social */
.footer-social {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-8) 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    max-width: var(--max-width);
    margin: 0 auto;
    padding-left: var(--space-6);
    padding-right: var(--space-6);
}

.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--border-radius);
    color: rgba(255, 255, 255, 0.6);
    transition: color var(--transition-fast), background-color var(--transition-fast);
}

.footer-social a:hover {
    color: var(--color-white);
    background-color: rgba(255, 255, 255, 0.1);
}

.footer-social svg {
    width: 20px;
    height: 20px;
}

/* Footer Bottom */
.footer-bottom {
    padding: var(--space-6) 0;
    max-width: var(--max-width);
    margin: 0 auto;
    padding-left: var(--space-6);
    padding-right: var(--space-6);
}

.footer-bottom__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--space-4);
}

.footer-bottom__copy {
    font-size: var(--font-size-xs);
    color: rgba(255, 255, 255, 0.4);
}

.footer-bottom__links {
    display: flex;
    gap: var(--space-6);
}

.footer-bottom__links a {
    font-size: var(--font-size-xs);
    color: rgba(255, 255, 255, 0.4);
}

.footer-bottom__links a:hover {
    color: rgba(255, 255, 255, 0.8);
}

/* =========== FOOTER RESPONSIVE =========== */
@media (max-width: 1024px) {
    .footer-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-bottom__inner {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

/* =========== HEADER RESPONSIVE =========== */
@media (max-width: 1023px) {
    .main-nav {
        display: none;
    }
    .mobile-toggle {
        display: flex;
    }
    .mobile-nav {
        display: block;
    }
}

/* =========== LOADING STATES =========== */
/* Reserve space for injected components */
#site-header {
    min-height: var(--header-height);
    background: var(--color-white);
}

#site-footer {
    min-height: 300px;
    background: var(--color-navy);
}

#site-header:empty::before,
#site-footer:empty::before {
    content: '';
    display: block;
    width: 100%;
    height: 100%;
    animation: shimmer 1.5s ease-in-out infinite;
}

@keyframes shimmer {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* =========== SEARCH OVERLAY =========== */
.search-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: var(--z-modal);
    align-items: flex-start;
    justify-content: center;
    padding-top: 120px;
}

.search-overlay.is-open {
    display: flex;
}

.search-box {
    background: var(--color-white);
    border-radius: var(--border-radius-lg);
    padding: var(--space-8);
    width: 90%;
    max-width: 600px;
    box-shadow: var(--shadow-xl);
}

.search-input {
    width: 100%;
    padding: var(--space-4);
    font-size: var(--font-size-xl);
    border: 2px solid var(--color-border);
    border-radius: var(--border-radius);
    outline: none;
    transition: border-color var(--transition-fast);
}

.search-input:focus {
    border-color: var(--color-primary);
}

.search-hints {
    margin-top: var(--space-4);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.search-hints span {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    background: var(--color-bg-gray);
    border-radius: var(--border-radius-full);
    margin: var(--space-1);
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.search-hints span:hover {
    background: var(--color-primary-light);
    color: var(--color-primary);
}