/* ============================================================================
   HEADER SECTION CSS for dubrovin.kz
   Навигация, логотип, переключатель темы, мобильное меню, переключатель языков
   ============================================================================ */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    z-index: var(--z-header);
    transition: all var(--transition);
}

.header .container {
    height: 100%;
}

[data-theme="dark"] .header {
    background-color: rgba(17, 24, 39, 0.95);
    border-bottom-color: var(--border);
}

.header__content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    gap: var(--spacing-lg);
}

/* Логотип */
.header__logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-primary);
    text-decoration: none;
    transition: transform var(--transition);
}

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

.logo {
    width: 32px;
    height: 32px;
}

.header__title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--primary);
}

/* Навигация */
.header__nav {
    display: none;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-link {
    position: relative;
    font-weight: var(--font-weight-medium);
    color: var(--text-secondary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    transition: all var(--transition);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    width: 0;
    height: 2px;
    background-color: var(--primary);
    transition: all var(--transition);
    transform: translateX(-50%);
}

.nav-link:hover,
.nav-link:focus {
    color: var(--primary);
    background-color: rgba(30, 64, 175, 0.1);
}

.nav-link:hover::after {
    width: 80%;
}

/* Header Actions (Language Switcher + Theme Toggle + Mobile Menu) */
.header__actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

/* Language Switcher in Header */
.header__actions .language-switcher {
    margin-right: var(--spacing-xs);
}

.header__actions .language-current {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--bg-color);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: var(--font-size-sm);
    color: var(--text-color);
    min-height: 36px;
    justify-content: center;
}

.header__actions .language-current:hover {
    border-color: var(--primary);
    background: var(--bg-accent);
}

.header__actions .language-current.active {
    border-color: var(--primary);
}

.language-current .flag {
    font-size: 16px;
    line-height: 1;
}

.language-current .lang-code {
    font-weight: 500;
    font-size: 12px;
    letter-spacing: 0.5px;
}

.dropdown-arrow {
    transition: transform 0.2s ease;
    flex-shrink: 0;
}

.language-current.active .dropdown-arrow {
    transform: rotate(180deg);
}

.header__actions .language-menu {
    position: absolute;
    top: 100%;
    right: 0;
    min-width: 120px;
    background: var(--bg-color);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all 0.2s ease;
    margin-top: 4px;
    z-index: 1001;
}

[data-theme="dark"] .header__actions .language-menu {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.header__actions .language-menu.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.language-option {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 10px 12px;
    border: none;
    background: none;
    cursor: pointer;
    transition: background-color 0.2s ease;
    color: var(--text-color);
    font-size: 14px;
    text-align: left;
}

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

.language-option:first-child {
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.language-option:last-child {
    border-radius: 0 0 var(--border-radius) var(--border-radius);
}

.language-option .flag {
    font-size: 16px;
    line-height: 1;
}

.language-option .lang-name {
    font-weight: 500;
}

/* Переключатель темы */
.theme-toggle {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--bg-accent);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: all var(--transition);
    min-height: 36px;
}

.theme-toggle:hover {
    background-color: var(--primary);
    color: var(--text-inverse);
    transform: translateY(-1px);
}

.theme-toggle__text {
    display: none;
}

/* Мобильное меню - кнопка */
.header__menu-toggle {
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    width: 30px;
    height: 30px;
    background: transparent;
    border: none;
    cursor: pointer;
}

.header__menu-toggle span {
    width: 100%;
    height: 3px;
    background-color: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition);
}

/* Анимация гамбургера */
.header__menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

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

.header__menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* Мобильное меню */
.mobile-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    height: calc(100vh - var(--header-height));
    background-color: var(--bg-primary);
    transform: translateX(-100%);
    transition: transform var(--transition);
    z-index: var(--z-modal);
    overflow-y: auto;
}

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

.mobile-menu__nav {
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.mobile-nav-link {
    display: block;
    padding: var(--spacing-md) var(--spacing-lg);
    color: var(--text-primary);
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-lg);
    border-radius: var(--border-radius);
    transition: all var(--transition);
}

.mobile-nav-link:hover {
    background-color: var(--bg-accent);
    color: var(--primary);
}

/* Mobile Language Switcher */
.mobile-menu__actions {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border);
    margin-top: var(--spacing-md);
    background-color: var(--bg-secondary);
}

.mobile-menu__actions .language-switcher {
    justify-content: center;
}

.mobile-menu__actions .language-current {
    width: 100%;
    justify-content: center;
    padding: var(--spacing-md);
}

/* Адаптивность */
@media (max-width: 767px) {
    .theme-toggle__text {
        display: none;
    }
    
    .theme-toggle {
        padding: var(--spacing-xs);
        min-width: 36px;
    }
    
    /* Show language switcher in header actions on mobile */
    .header__actions .language-switcher {
        display: flex;
    }
    
    /* Hide mobile menu language switcher to avoid duplication */
    .mobile-menu__actions {
        display: none;
    }
}

@media (min-width: 768px) {
    .header__nav {
        display: flex;
    }
    
    .header__menu-toggle {
        display: none;
    }
    
    .mobile-menu {
        display: none;
    }
    
    .theme-toggle__text {
        display: block;
    }
}

@media (min-width: 1024px) {
    .header__nav {
        gap: var(--spacing-xl);
    }
    
    .nav-link {
        padding: var(--spacing-sm) var(--spacing-lg);
    }
    
    .header__actions {
        gap: var(--spacing-lg);
    }
}