/**
 * Joycewemtek Header 组件样式
 * 包含导航栏、二级菜单、语言切换器
 */

/* ==================== Header Container ==================== */
#header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: var(--header-bg);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    backdrop-filter: saturate(180%) blur(20px);
}

.header-container {
    max-width: 1440px;
    margin: 0 auto;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-lg);
}

/* ==================== Logo ==================== */
.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    transition: opacity var(--transition-fast);
}

.logo:hover {
    opacity: 0.8;
}

.logo-text {
    font-size: 21px;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: 0;
}

/* ==================== Navigation ==================== */
.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.nav-item {
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    border-radius: 8px;
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.nav-link:hover {
    background-color: rgba(0, 0, 0, 0.04);
}

.nav-link.active {
    color: var(--accent-blue);
}

.dropdown-arrow {
    font-size: 10px;
    margin-left: 2px;
    transition: transform var(--transition-fast);
}

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

/* ==================== Submenu ==================== */
.submenu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 180px;
    padding: var(--spacing-xs) 0;
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all var(--transition-fast);
    z-index: 100;
}

.nav-item-dropdown:hover .submenu {
    opacity: 1;
    visibility: visible;
    transform: translateY(4px);
}

.submenu-item {
    display: block;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 14px;
    color: var(--text-primary);
    transition: background-color var(--transition-fast);
}

.submenu-item:hover {
    background-color: var(--secondary-bg);
}

/* ==================== Header Actions ==================== */
.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.header-quote-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 32px;
    padding: 6px 12px;
    border-radius: 8px;
    background: var(--accent-blue);
    color: var(--white);
    font-size: 13px;
    font-weight: 600;
}

.header-quote-link:hover {
    background: #005bb5;
}

/* ==================== Language Switcher ==================== */
.language-switcher {
    position: relative;
}

.language-btn {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    background: transparent;
    border-radius: 8px;
    transition: background-color var(--transition-fast);
}

.language-btn:hover {
    background-color: rgba(0, 0, 0, 0.04);
}

.lang-arrow {
    font-size: 10px;
    transition: transform var(--transition-fast);
}

.language-switcher.open .lang-arrow {
    transform: rotate(180deg);
}

.language-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    min-width: 120px;
    padding: var(--spacing-xs) 0;
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all var(--transition-fast);
    z-index: 100;
}

.language-dropdown.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(4px);
}

.language-option {
    display: block;
    width: 100%;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 14px;
    color: var(--text-primary);
    text-align: left;
    transition: background-color var(--transition-fast);
}

.language-option:hover {
    background-color: var(--secondary-bg);
}

.language-option.active {
    color: var(--accent-blue);
}

/* ==================== Mobile Menu Button ==================== */
.mobile-menu-btn {
    display: none;
    width: 36px;
    height: 36px;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    transition: background-color var(--transition-fast);
}

.mobile-menu-btn:hover {
    background-color: rgba(0, 0, 0, 0.04);
}

.hamburger {
    position: relative;
    width: 16px;
    height: 2px;
    background: var(--text-primary);
    transition: background var(--transition-fast);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--text-primary);
    transition: transform var(--transition-fast);
}

.hamburger::before {
    top: -5px;
}

.hamburger::after {
    bottom: -5px;
}

.mobile-menu-btn.active .hamburger {
    background: transparent;
}

.mobile-menu-btn.active .hamburger::before {
    transform: rotate(45deg) translate(3px, 3px);
}

.mobile-menu-btn.active .hamburger::after {
    transform: rotate(-45deg) translate(3px, -3px);
}

/* ==================== Mobile Styles ==================== */
@media (max-width: 768px) {
    .header-container {
        padding: 0 var(--spacing-sm);
    }

    .mobile-menu-btn {
        display: flex;
    }

    .header-quote-link {
        display: none;
    }

    .nav-menu {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        bottom: 0;
        flex-direction: column;
        align-items: stretch;
        padding: var(--spacing-md);
        background: var(--primary-bg);
        transform: translateX(100%);
        transition: transform var(--transition-normal);
        z-index: 999;
    }

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

    .nav-item {
        border-bottom: 1px solid var(--border-color);
    }

    .nav-link {
        padding: var(--spacing-sm);
        font-size: 16px;
    }

    .nav-item-dropdown .nav-link {
        justify-content: space-between;
    }

    .submenu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border: none;
        background: var(--secondary-bg);
        border-radius: 8px;
        margin-top: var(--spacing-xs);
    }

    .submenu-item {
        padding: var(--spacing-sm);
    }

    .language-dropdown {
        right: 0;
    }
}

@media (min-width: 769px) and (max-width: 1023px) {
    .header-container {
        padding: 0 var(--spacing-md);
    }

    .nav-link {
        padding: var(--spacing-xs);
    }
}