/* ========================================
   3. Header
   ======================================== */
.site-header {
    background-color: var(--header-bg);
    color: var(--header-color);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-inner {
    display: flex;
    align-items: center;
    /* justify-content: space-between; Removed to allow Nav to center with flex-grow */
    padding: var(--spacing-4) 0;
    gap: var(--spacing-4);
}

.site-branding .site-title {
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--color-primary);
}

.site-branding img {
    max-height: 50px;
    width: auto;
}

/* Navigation */
.main-navigation {
    flex-grow: 1;
    display: flex;
    justify-content: center;
}

.main-navigation .primary-menu {
    display: flex;
    gap: var(--spacing-6);
}

.main-navigation a {
    font-weight: 500;
    color: var(--header-color);
    padding: var(--spacing-2) 0;
    position: relative;
}

.main-navigation a:hover,
.main-navigation .current-menu-item a {
    color: var(--color-primary);
}

.main-navigation a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    /* Thicker for better visibility */
    background-color: #ff6600;
    /* Vivid Orange as requested */
    transition: width var(--transition-normal);
}

.main-navigation a:hover::after,
.main-navigation .current-menu-item a::after {
    width: 100%;
}

/* Menu Toggle (Mobile) */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--spacing-2);
}

.hamburger-icon,
.hamburger-icon::before,
.hamburger-icon::after {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--header-color);
    transition: var(--transition-normal);
}

.hamburger-icon {
    position: relative;
}

.hamburger-icon::before,
.hamburger-icon::after {
    content: '';
    position: absolute;
    left: 0;
}

.hamburger-icon::before {
    top: -7px;
}

.hamburger-icon::after {
    top: 7px;
}

/* Header Contact */
.header-contact .header-phone {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: var(--radius-md);
    font-weight: 500;
    transition: background-color var(--transition-fast);
}

.header-contact .header-phone:hover {
    background-color: var(--color-primary-dark);
    color: var(--color-white);
}

/* Top Bar */
.top-bar {
    background-color: var(--topbar-bg, var(--color-primary-dark));
    color: var(--topbar-color, var(--color-gray-300));
    padding: var(--spacing-2) 0;
    font-size: var(--text-sm);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.top-bar-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.top-bar-left {
    display: flex;
    gap: var(--spacing-6);
    flex-wrap: wrap;
}

.top-bar-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    color: var(--topbar-color, var(--color-gray-300));
    transition: color var(--transition-fast);
}

.top-bar-item:hover {
    color: var(--color-white);
}

.top-bar-item i {
    color: var(--color-secondary);
}

.top-bar-right {
    display: flex;
    align-items: center;
}

.social-icons {
    display: flex;
    gap: var(--spacing-3);
}

.social-item {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: var(--color-white);
    transition: all var(--transition-fast);
    font-size: 0.8em;
}

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

/* Responsive */
@media (max-width: 768px) {
    .header-inner {
        flex-wrap: wrap;
    }

    .menu-toggle {
        display: flex;
    }

    .main-navigation {
        order: 3;
        width: 100%;
        display: none;
    }

    .main-navigation.active {
        display: block;
    }

    .main-navigation .primary-menu {
        flex-direction: column;
        gap: 0;
        padding: var(--spacing-4) 0;
    }

    .main-navigation a {
        display: block;
        padding: var(--spacing-3) 0;
        border-bottom: 1px solid var(--color-gray-100);
    }

    .header-contact {
        display: none;
    }

    .top-bar-inner {
        flex-direction: column;
        gap: var(--spacing-2);
    }

    .top-bar-left {
        justify-content: center;
        width: 100%;
        gap: var(--spacing-4);
    }

    .top-bar-right {
        width: 100%;
        justify-content: center;
    }
}