/* ========================================
   NAVIGATION - ENTERPRISE HEADER
   ======================================== */

.site-header {
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    background-color: var(--color-white);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

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

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

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

/* Logo */
.navbar-brand {
    flex-shrink: 0;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    text-decoration: none;
    transition: opacity var(--transition-base);
}

.logo-link:hover {
    opacity: 0.8;
}

.logo-image {
    height: 48px;
    width: auto;
}

.logo-text {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--brand-primary);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
    z-index: var(--z-fixed);
}

.hamburger-line {
    display: block;
    width: 28px;
    height: 3px;
    background-color: var(--brand-primary);
    transition: all var(--transition-base);
    border-radius: var(--radius-sm);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* Navigation Menu */
.navbar-menu {
    display: flex;
    align-items: center;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-700);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.nav-link:hover {
    color: var(--brand-primary);
    background-color: var(--color-gray-50);
}

.dropdown-icon {
    font-size: var(--font-size-xs);
    transition: transform var(--transition-base);
}

.nav-item-dropdown:hover .dropdown-icon {
    transform: rotate(180deg);
}

/* Dropdown Menu */
.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 240px;
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--space-2);
    margin-top: var(--space-2);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-base);
    z-index: var(--z-dropdown);
}

.nav-item-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: block;
    padding: var(--space-3) var(--space-4);
    font-size: var(--font-size-sm);
    color: var(--color-gray-700);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.dropdown-item:hover {
    color: var(--brand-primary);
    background-color: var(--color-gray-50);
}

.nav-item-cta {
    margin-left: var(--space-4);
}

/* ========================================
   FOOTER - ENTERPRISE STYLE
   ======================================== */

.site-footer {
    background: linear-gradient(135deg, var(--brand-primary), var(--brand-primary-dark));
    color: var(--color-white);
    margin-top: var(--space-24);
}

.footer-main {
    padding: var(--space-16) 0 var(--space-12);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-8);
}

.footer-column {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
}

.footer-logo-image {
    height: 40px;
    width: auto;
    filter: brightness(0) invert(1);
}

.footer-logo-text {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
}

.footer-description {
    color: var(--color-gray-100);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--space-4);
}

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

.location-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--color-gray-100);
    font-size: var(--font-size-sm);
}

.location-item i {
    color: var(--brand-secondary);
}

.footer-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-white);
    margin-bottom: var(--space-4);
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.footer-links li a {
    color: var(--color-gray-100);
    text-decoration: none;
    font-size: var(--font-size-sm);
    transition: all var(--transition-base);
    display: inline-block;
}

.footer-links li a:hover {
    color: var(--color-white);
    transform: translateX(4px);
}

.footer-contact {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer-contact li {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
    color: var(--color-gray-100);
}

.footer-contact li i {
    color: var(--brand-secondary);
    width: 20px;
}

.footer-contact li a {
    color: var(--color-gray-100);
    text-decoration: none;
    transition: color var(--transition-base);
}

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

.social-links {
    display: flex;
    gap: var(--space-3);
    margin-top: var(--space-4);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    color: var(--color-white);
    text-decoration: none;
    transition: all var(--transition-base);
}

.social-link:hover {
    background-color: var(--brand-secondary);
    transform: translateY(-2px);
}

/* Footer Bottom */
.footer-bottom {
    background-color: rgba(0, 0, 0, 0.2);
    padding: var(--space-6) 0;
}

.footer-bottom-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-6);
}

.footer-copyright p {
    color: var(--color-gray-200);
    font-size: var(--font-size-sm);
    margin: 0;
}

.footer-legal {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex-wrap: wrap;
}

.footer-legal a {
    color: var(--color-gray-200);
    text-decoration: none;
    font-size: var(--font-size-sm);
    transition: color var(--transition-base);
}

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

.footer-legal .separator {
    color: var(--color-gray-400);
}

/* ========================================
   RESPONSIVE NAVIGATION
   ======================================== */

@media (max-width: 1024px) {
    .mobile-menu-toggle {
        display: flex;
    }
    
    .navbar-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 320px;
        height: 100vh;
        background-color: var(--color-white);
        box-shadow: var(--shadow-xl);
        padding: var(--space-20) var(--space-6);
        overflow-y: auto;
        transition: right var(--transition-slow);
        z-index: var(--z-modal);
    }
    
    .navbar-menu.active {
        right: 0;
    }
    
    .nav-links {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
    }
    
    .nav-item {
        width: 100%;
    }
    
    .nav-link {
        padding: var(--space-4);
        justify-content: space-between;
    }
    
    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        background-color: var(--color-gray-50);
        margin: 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height var(--transition-base);
    }
    
    .nav-item-dropdown.active .dropdown-menu {
        max-height: 400px;
    }
    
    .nav-item-cta {
        margin-left: 0;
        margin-top: var(--space-4);
    }
    
    .nav-item-cta .btn {
        width: 100%;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .footer-about {
        grid-column: 1 / -1;
    }
}

@media (max-width: 640px) {
    .navbar-menu {
        width: 100%;
        right: -100%;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-legal {
        justify-content: center;
    }
}

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

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