/* ===========================
   MTL Electric - Component Styles
   Header, Navigation, Footer
   =========================== */

/* ===========================
   Site Header & Navigation
   =========================== */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: var(--white);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.site-header.scroll-down {
    transform: translateY(-100%);
}

.site-header.scroll-up {
    transform: translateY(0);
    box-shadow: var(--shadow-lg);
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
    min-height: var(--header-height);
}

.logo-link {
    display: flex;
    align-items: center;
    z-index: 1001;
}

.logo {
    height: 50px;
    width: auto;
    transition: transform var(--transition-base);
}

.logo:hover {
    transform: scale(1.05);
}

/* Desktop Navigation */
.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    list-style: none;
    margin: 0;
}

.nav-menu li {
    position: relative;
}

.nav-link {
    font-weight: 600;
    font-size: 0.9375rem;
    color: var(--gray-800);
    padding: 0.5rem 0;
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-blue);
}

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

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

/* Dropdown Menu */
.nav-dropdown {
    position: relative;
}

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

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--white);
    box-shadow: var(--shadow-xl);
    border-radius: var(--radius-md);
    min-width: 240px;
    padding: var(--spacing-sm);
    list-style: none;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-base);
    margin-top: 0.5rem;
}

.dropdown-menu li {
    margin: 0;
}

.dropdown-menu a {
    display: block;
    padding: 0.75rem 1rem;
    color: var(--gray-700);
    font-size: 0.9375rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.dropdown-menu a:hover {
    background-color: var(--gray-50);
    color: var(--primary-blue);
    transform: translateX(4px);
}

.nav-cta {
    margin-left: var(--spacing-sm);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 30px;
    height: 25px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
}

.mobile-menu-toggle span {
    width: 30px;
    height: 3px;
    background-color: var(--gray-800);
    border-radius: 3px;
    transition: all var(--transition-base);
    transform-origin: center;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: translateY(11px) rotate(45deg);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: translateY(-11px) rotate(-45deg);
}

/* ===========================
   Site Footer
   =========================== */

.site-footer {
    background-color: var(--gray-900);
    color: var(--gray-300);
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
    margin-top: var(--spacing-3xl);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-section h4 {
    color: var(--white);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
    font-weight: 600;
}

.footer-logo {
    height: 60px;
    width: auto;
    margin-bottom: var(--spacing-md);
    filter: brightness(0) invert(1);
}

.footer-tagline {
    color: var(--gray-400);
    font-size: 0.9375rem;
    margin-bottom: var(--spacing-md);
}

.footer-social {
    display: flex;
    gap: var(--spacing-sm);
}

.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--gray-800);
    color: var(--gray-300);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.footer-social a:hover {
    background-color: var(--primary-blue);
    color: var(--white);
    transform: translateY(-2px);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    color: var(--gray-400);
    font-size: 0.9375rem;
    transition: color var(--transition-fast);
}

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

.footer-contact {
    list-style: none;
}

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    color: var(--gray-400);
    font-size: 0.9375rem;
}

.footer-contact svg {
    flex-shrink: 0;
    margin-top: 2px;
    color: var(--primary-blue-light);
}

.footer-contact a {
    color: var(--gray-400);
    transition: color var(--transition-fast);
}

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

.footer-license {
    margin-top: var(--spacing-sm);
    font-size: 0.875rem;
    line-height: 1.6;
    color: var(--gray-500);
}

.footer-bottom {
    border-top: 1px solid var(--gray-800);
    padding-top: var(--spacing-lg);
    text-align: center;
}

.footer-bottom p {
    color: var(--gray-500);
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.footer-tagline-bottom {
    color: var(--gray-600);
    font-size: 0.8125rem;
}

/* ===========================
   Responsive Styles
   =========================== */

@media (max-width: 1024px) {
    .nav-menu {
        gap: var(--spacing-md);
    }

    .nav-link {
        font-size: 0.875rem;
    }
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: 0;
        width: 280px;
        height: 100vh;
        background-color: var(--white);
        flex-direction: column;
        align-items: flex-start;
        padding: 100px var(--spacing-lg) var(--spacing-lg);
        gap: 0;
        transform: translateX(100%);
        transition: transform var(--transition-base);
        box-shadow: var(--shadow-xl);
        overflow-y: auto;
    }

    .nav-menu.active {
        transform: translateX(0);
    }

    .nav-menu li {
        width: 100%;
        margin-bottom: var(--spacing-md);
    }

    .nav-link {
        display: block;
        padding: 0.75rem 0;
        font-size: 1.0625rem;
    }

    .nav-link::after {
        display: none;
    }

    .nav-dropdown .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        background-color: var(--gray-50);
        margin-top: var(--spacing-sm);
        padding: var(--spacing-sm);
    }

    .nav-cta {
        width: 100%;
        margin-left: 0;
        margin-top: var(--spacing-md);
    }

    .nav-cta .btn {
        width: 100%;
    }

    body.menu-open {
        overflow: hidden;
    }

    .logo {
        height: 40px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
}

@media (max-width: 480px) {
    .nav-menu {
        width: 100%;
        padding: 80px var(--spacing-md) var(--spacing-md);
    }
}