/**
 * Enhanced Navigation CSS with multi-column dropdown menus
 * Supports desktop horizontal menu, mobile burger menu, and proper hover logic
 */

/* CSS Custom Properties for theming */
:root {
    /* Light theme colors */
    --nav-bg: #ffffff;
    --nav-text: #333333;
    --nav-text-secondary: #666666;
    --nav-hover-bg: rgba(0, 0, 0, 0.05);
    --nav-active-bg: rgba(0, 0, 0, 0.1);
    --nav-border: #e0e0e0;
    --nav-shadow: rgba(0, 0, 0, 0.1);
    --nav-focus-color: #007B9E;
    --nav-focus-shadow: rgba(0, 123, 158, 0.25);
    
    /* Дополнительные цвета для совместимости */
    --color-background: #ffffff;
    --color-text: #333333;
    --color-primary: #007B9E;
    --color-background-alt: #f5f5f5;
    --nav-background-alt: #f8f9fa;
    
    /* Overlay and backdrop */
    --overlay-bg: rgba(34, 34, 34, 0.5);
    --backdrop-blur: blur(2px) brightness(0.7);
    
    /* Typography */
    --nav-font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    --nav-font-size: 1rem;
    --nav-font-weight: 400;
    --nav-line-height: 1.5;
    
    /* Spacing and sizing */
    --nav-height: 60px;
    --nav-padding: 0 1rem;
    --nav-item-padding: 0.75rem 1rem;
    --nav-dropdown-width: 500px;
    --nav-border-radius: 4px;
    --nav-icon-size: 1.2em;
    
    /* Animation */
    --nav-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --nav-transition-fast: all 0.15s ease-out;
    --nav-scale-hover: 1.02;
    
    /* Z-index layers */
    --nav-z-index: 1000;
    --nav-dropdown-z-index: 1001;
    --nav-burger-z-index: 1002;
    --nav-overlay-z-index: 999;
}

/* Dark theme colors */
[data-theme="dark"] {
    --nav-bg: #1a1a1a;
    --nav-text: #ffffff;
    --nav-text-secondary: #e0e0e0;
    --nav-hover-bg: rgba(255, 255, 255, 0.15);
    --nav-active-bg: rgba(255, 255, 255, 0.2);
    --nav-border: #333333;
    --nav-shadow: rgba(0, 0, 0, 0.3);
    --nav-focus-color: #1a95be;
    --nav-focus-shadow: rgba(26, 149, 190, 0.25);
    --overlay-bg: rgba(0, 0, 0, 0.7);
    --nav-background-alt: #2a2a2a;
}

/* Reset and base styles */
html {
    scroll-behavior: smooth;
}

.nav-wrapper * {
    box-sizing: border-box;
}

/* Skip link for accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--nav-bg);
    color: var(--nav-text);
    padding: 8px;
    border-radius: var(--nav-border-radius);
    text-decoration: none;
    z-index: 9999;
    transform: translateY(-100%);
    transition: transform 0.3s ease;
}

.skip-link:focus {
    transform: translateY(0);
}

/* Visually hidden utility */
.visually-hidden {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

/* Main navigation wrapper */
.nav-wrapper {
    position: sticky;
    top: 0;
    left: 0;
    width: 100%;
    z-index: var(--nav-z-index);
    background: var(--nav-bg);
    box-shadow: 0 2px 4px var(--nav-shadow);
    transition: var(--nav-transition);
    overflow: visible;
}

.nav-wrapper.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
}

.nav-wrapper.hidden {
    transform: translateY(-100%);
}

/* --- ФИНАЛЬНОЕ ВЫРАВНИВАНИЕ ШАПКИ --- */
.nav-container {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    flex-wrap: nowrap;
    min-width: 0;
    width: 100%;
    gap: 0.5rem;
    position: relative;
    height: 80px;
    padding: 0 20px;
    box-sizing: border-box;
}

.nav-brand {
    flex-shrink: 0;
    margin-right: 1rem;
}

.nav-menu-desktop {
    flex: 1 1 auto;
    min-width: 0;
    display: flex;
    align-items: center;
    justify-content: flex-start;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    flex-shrink: 0;
    margin-left: auto;
    min-width: 120px;
    max-width: 160px;
    position: relative;
    z-index: 10;
}

.burger-menu {
    align-self: center;
    margin-left: 0.5rem;
    z-index: 1100;
}

/* Brand/Logo section */
.nav-brand-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--nav-text);
    font-weight: 600;
    transition: var(--nav-transition-fast);
}

.nav-brand-link:hover {
    transform: scale(var(--nav-scale-hover));
}

.nav-brand-logo {
    height: 40px;
    width: auto;
    object-fit: contain;
}

.nav-brand-text {
    font-size: 1.25rem;
    font-weight: 700;
}

/* Desktop menu */
.nav-menu-desktop {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    overflow: visible;
    flex: 1;
    justify-content: center;
    max-width: 750px;
    position: relative;
}

.nav-menu-list {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    align-items: center;
    flex-wrap: nowrap;
    overflow: visible;
    max-width: 100%;
}

.nav-item {
    position: relative;
    margin: 0 1px;
    flex-shrink: 0;
}

.nav-link {
    color: var(--nav-text);
    text-decoration: none;
    padding: 4px 6px;
    display: flex;
    align-items: center;
    transition: var(--nav-transition);
    border-radius: var(--nav-border-radius);
    font-weight: var(--nav-font-weight);
    position: relative;
    font-size: 0.85rem;
}

.nav-link:hover {
    color: var(--nav-focus-color);
    background: var(--nav-hover-bg);
}

.nav-link.active {
    color: var(--nav-focus-color);
    background: var(--nav-active-bg);
}

.nav-arrow {
    margin-left: 5px;
    font-size: 0.8em;
    transition: transform 0.3s ease;
}

.nav-item.submenu-open .nav-arrow {
    transform: rotate(180deg);
}

/* Multi-column dropdown menu */
.submenu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--nav-bg);
    box-shadow: 0 8px 25px var(--nav-shadow);
    width: calc(var(--nav-dropdown-width) * 0.67);
    max-width: 335px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--nav-transition);
    list-style: none;
    padding: 0;
    border-radius: var(--nav-border-radius);
    border: 1px solid var(--nav-border);
    z-index: var(--nav-dropdown-z-index);
    overflow: visible;
}

.nav-item.submenu-open .submenu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* Columns container - Second level in single column */
.submenu-columns {
    display: flex;
    width: 100%;
    min-height: 250px;
    max-height: 400px;
}

.submenu-column {
    flex: 1;
    padding: 25px 0;
    border-right: 1px solid var(--nav-border);
}

.submenu-column:last-child {
    border-right: none;
}

/* Submenu items */
.submenu-item {
    position: relative;
    margin: 0;
    padding: 0;
}

.submenu-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 25px;
    color: var(--nav-text);
    text-decoration: none;
    transition: var(--nav-transition-fast);
    font-size: 1.05rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.submenu-link:hover {
    background: var(--nav-hover-bg);
    color: var(--nav-focus-color);
}

.submenu-arrow {
    margin-left: auto;
    font-size: 0.8em;
    color: var(--nav-text-secondary);
    transition: transform 0.3s ease;
}

.submenu-item.sub-submenu-open .submenu-arrow {
    transform: rotate(90deg);
}

/* Third level submenu - Two columns layout */
.sub-submenu {
    position: absolute;
    top: 0;
    left: 100%;
    background: var(--nav-bg);
    border: 1px solid var(--nav-border);
    border-radius: var(--nav-border-radius);
    box-shadow: 0 8px 25px var(--nav-shadow);
    min-width: 400px;
    max-width: 500px;
    opacity: 0;
    visibility: hidden;
    transform: translateX(10px);
    transition: var(--nav-transition);
    z-index: calc(var(--nav-dropdown-z-index) + 1);
    list-style: none;
    padding: 0;
    margin-left: 1px;
    overflow: visible;
}

/* Third level columns container */
.sub-submenu-columns {
    display: flex;
    width: 100%;
    min-height: 200px;
    max-height: 350px;
}

.sub-submenu-column {
    flex: 1;
    padding: 20px 0;
    border-right: 1px solid var(--nav-border);
}

.sub-submenu-column:last-child {
    border-right: none;
}

.submenu-item.sub-submenu-open .sub-submenu {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

.sub-submenu-item {
    margin: 0;
    padding: 0;
}

.sub-submenu-link {
    display: block;
    padding: 12px 20px;
    color: var(--nav-text);
    text-decoration: none;
    transition: var(--nav-transition-fast);
    font-size: 0.95rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sub-submenu-link:hover {
    background: var(--nav-hover-bg);
    color: var(--nav-focus-color);
}

/* Actions section */
.nav-actions {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    flex-shrink: 0;
    margin-left: auto;
    min-width: 120px;
    max-width: 160px;
}

.nav-theme-switch {
    background: rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(0, 0, 0, 0.1);
    padding: 6px;
    border-radius: 50%;
    cursor: pointer;
    transition: var(--nav-transition);
    color: var(--nav-text);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    position: relative;
    overflow: hidden;
}

.nav-theme-switch:hover {
    background: rgba(0, 0, 0, 0.1);
    border-color: rgba(0, 0, 0, 0.2);
    color: var(--nav-focus-color);
    transform: scale(1.05);
    box-shadow: 0 3px 12px rgba(0, 0, 0, 0.2);
}

.nav-theme-switch:active {
    transform: scale(0.95);
}

.nav-theme-icon {
    font-size: 1.5em;
    transition: var(--nav-transition);
    transform-origin: center;
}

.nav-theme-switch:hover .nav-theme-icon {
    transform: rotate(180deg);
}

/* Анимация при смене темы */
.nav-theme-switch.theme-changing .nav-theme-icon {
    animation: themeSwitchRotate 0.6s ease-in-out;
}

@keyframes themeSwitchRotate {
    0% {
        transform: rotate(0deg) scale(1);
    }
    50% {
        transform: rotate(180deg) scale(1.2);
    }
    100% {
        transform: rotate(360deg) scale(1);
    }
}

.nav-action-button {
    display: flex;
    align-items: center;
    gap: 2px;
    padding: 5px 10px;
    background: var(--nav-focus-color);
    color: white;
    text-decoration: none;
    border-radius: var(--nav-border-radius);
    font-weight: 600;
    transition: var(--nav-transition);
    white-space: nowrap;
    font-size: 0.8rem;
    min-width: 75px;
    max-width: 110px;
}

.nav-action-button:hover {
    background: #005a7a;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px var(--nav-focus-shadow);
}

/* Скрываем текст кнопки на десктопе, оставляем только иконку */
.nav-action-button span:last-child {
    display: none;
}

/* Показываем текст только на больших экранах */
@media (min-width: 1400px) {
    .nav-action-button span:last-child {
        display: inline;
    }
    
    .nav-action-button {
        padding: 8px 16px;
        font-size: 0.9rem;
        max-width: none;
        min-width: 110px;
    }
}

/* Burger menu */
.burger-menu {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    position: relative;
    z-index: var(--nav-burger-z-index);
}

.burger-line {
    width: 24px;
    height: 2px;
    background: var(--nav-text);
    margin: 2px 0;
    transition: var(--nav-transition);
    border-radius: 1px;
}

.burger-menu.active .burger-line:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}

.burger-menu.active .burger-line:nth-child(2) {
    opacity: 0;
}

.burger-menu.active .burger-line:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

/* Mobile menu overlay */
.nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--overlay-bg);
    /* применяем backdrop-filter где поддерживается */
    backdrop-filter: var(--backdrop-blur);
    z-index: var(--nav-overlay-z-index);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.nav-overlay.visible {
    opacity: 1;
    visibility: visible;
}

/* Улучшенное мобильное меню */
.nav-menu-mobile {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%; /* Полная ширина экрана */
    max-width: none; /* Убираем ограничение */
    height: 100vh;
    background: var(--nav-bg);
    border-left: none; /* Убираем границу */
    box-shadow: -4px 0 20px var(--nav-shadow);
    z-index: var(--nav-burger-z-index);
    transition: var(--nav-transition);
    overflow-y: auto;
    overscroll-behavior: contain;
    padding: 0; /* Убираем отступы */
    display: flex;
    flex-direction: column;
    will-change: transform;
}

/* Заголовок мобильного меню */
.nav-mobile-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--nav-border);
    background: var(--nav-bg);
    position: sticky;
    top: 0;
    z-index: 1;
}

.nav-mobile-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--nav-text);
    margin: 0;
}

.nav-mobile-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--nav-text);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: var(--nav-transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav-mobile-close:hover {
    background: var(--nav-hover-bg);
}

/* Поиск в мобильном меню */
.nav-mobile-search {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--nav-border);
    background: var(--nav-bg);
}

.nav-mobile-search-input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--nav-border);
    border-radius: var(--nav-border-radius);
    background: var(--nav-bg);
    color: var(--nav-text);
    font-size: 1rem;
    transition: var(--nav-transition);
}

.nav-mobile-search-input:focus {
    outline: none;
    border-color: var(--nav-focus-color);
    box-shadow: 0 0 0 3px var(--nav-focus-shadow);
}

/* Быстрые действия */
.nav-mobile-quick-actions {
    display: flex;
    gap: 0.5rem;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--nav-border);
    background: var(--nav-bg);
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.nav-mobile-quick-actions::-webkit-scrollbar {
    display: none;
}

.nav-mobile-quick-action {
    flex-shrink: 0;
    padding: 0.5rem 1rem;
    background: var(--nav-hover-bg);
    border: 1px solid var(--nav-border);
    border-radius: var(--nav-border-radius);
    color: var(--nav-text);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--nav-transition);
    white-space: nowrap;
}

.nav-mobile-quick-action:hover {
    background: var(--nav-active-bg);
    transform: translateY(-1px);
}

/* Контейнер списка меню */
.nav-menu-mobile-list {
    list-style: none;
    margin: 0;
    padding: 0;
    flex: 1;
    overflow-y: auto;
}

/* Улучшенные элементы мобильного меню */
.nav-mobile-item {
    width: 100%;
    border-bottom: 1px solid var(--nav-border);
    position: relative;
}

.nav-mobile-item:last-child {
    border-bottom: none;
}

.nav-mobile-item .nav-menu-link {
    width: 100%;
    height: auto;
    padding: 1rem 1.5rem;
    justify-content: space-between;
    border-radius: 0;
    font-size: 1.1rem;
    color: var(--nav-text);
    text-decoration: none;
    display: flex;
    align-items: center;
    transition: var(--nav-transition);
    position: relative;
    overflow: hidden;
}

/* Кнопка-тогглер подменю отдельно от ссылки */
.nav-dropdown-toggle {
    margin-left: 0.5rem;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: none;
    background: var(--nav-hover-bg);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.nav-dropdown-toggle:focus-visible {
    outline: 2px solid var(--nav-focus-color);
    outline-offset: 2px;
}

/* Сенсорные цели не меньше 44px */
.nav-menu-link,
.nav-mobile-item .nav-menu-link {
    min-height: 2.75rem;
}

/* Эффект нажатия */
.nav-mobile-item .nav-menu-link:active {
    background: var(--nav-active-bg);
    transform: scale(0.98);
}

.nav-mobile-item .nav-menu-link:hover {
    background: var(--nav-hover-bg);
    transform: none;
}

/* Иконки в мобильном меню */
.nav-mobile-item .nav-menu-link::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--nav-focus-color);
    transform: scaleY(0);
    transition: transform 0.2s ease;
}

.nav-mobile-item .nav-menu-link:hover::before {
    transform: scaleY(1);
}

/* Хлебные крошки для мобильного меню */
.nav-mobile-breadcrumbs {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--nav-background-alt);
    border-bottom: 1px solid var(--nav-border);
    font-size: 0.9rem;
    color: var(--nav-text-secondary);
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.nav-mobile-breadcrumbs::-webkit-scrollbar {
    display: none;
}

.nav-mobile-breadcrumb {
    color: var(--nav-text-secondary);
    text-decoration: none;
    white-space: nowrap;
}

.nav-mobile-breadcrumb.active {
    color: var(--nav-text);
    font-weight: 500;
}

.nav-mobile-breadcrumb-separator {
    color: var(--nav-text-secondary);
}

/* Кнопка "Назад" */
.nav-mobile-back {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--nav-background-alt);
    border: none;
    color: var(--nav-text);
    font-size: 1rem;
    cursor: pointer;
    transition: var(--nav-transition);
    border-bottom: 1px solid var(--nav-border);
}

.nav-mobile-back:hover {
    background: var(--nav-hover-bg);
}

.nav-mobile-back-icon {
    font-size: 1.2rem;
}

/* Улучшенные стрелки */
.nav-dropdown-arrow {
    margin-left: auto;
    font-size: 0.8em;
    transition: transform 0.3s ease;
    color: var(--nav-text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--nav-hover-bg);
}

.nav-mobile-item.dropdown-open .nav-dropdown-arrow {
    transform: rotate(180deg);
    background: var(--nav-active-bg);
}

/* Улучшенные подменю */
.nav-mobile-item .nav-dropdown {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    background: var(--nav-background-alt);
    margin: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    list-style: none;
    padding: 0;
}

.nav-mobile-item.dropdown-open .nav-dropdown {
    max-height: 1000px; /* Увеличиваем для больших подменю */
}

.nav-mobile-item .nav-dropdown .nav-mobile-item .nav-menu-link {
    padding-left: 2.5rem;
    font-size: 0.95rem;
    color: var(--nav-text-secondary);
    border-left: 2px solid var(--nav-border);
    margin-left: 1rem;
}

/* Анимация для haptic feedback */
@keyframes mobileTap {
    0% { transform: scale(1); }
    50% { transform: scale(0.95); }
    100% { transform: scale(1); }
}

.nav-mobile-item .nav-menu-link.tap-animation {
    animation: mobileTap 0.15s ease-out;
}

/* Responsive design */
@media (max-width: 992px) {
    .nav-container {
        justify-content: flex-start;
    }
    .nav-brand {
        margin-right: 0.5rem;
        flex-shrink: 0;
    }
    .nav-menu-desktop {
        display: none !important;
        width: 0 !important;
        min-width: 0 !important;
        max-width: 0 !important;
        flex: 0 0 0 !important;
        padding: 0 !important;
        margin: 0 !important;
        overflow: hidden !important;
    }
    .nav-right {
        margin-left: auto;
        display: flex;
        align-items: center;
        gap: 0.5rem;
    }
}

@media (min-width: 769px) {
    .nav-menu-mobile {
        display: none;
    }
    
    .burger-menu {
        display: none;
    }
    
    .nav-menu-desktop {
        display: flex;
    }
}

/* Дополнительные стили для больших экранов */
@media (min-width: 1400px) {
    .nav-item {
        margin: 0 12px;
    }
    
    .nav-link {
        padding: 10px 16px;
        font-size: 1.1rem;
    }
    
    .nav-action-button {
        padding: 10px 10px;
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .nav-menu-mobile {
        width: 100%;
    }
    
    .nav-brand-text {
        display: none;
    }
    
    .nav-brand-logo {
        height: 30px;
    }
}

/* Дополнительные стили для очень компактного отображения */
@media (max-width: 1100px) {
    .nav-item {
        margin: 0 0.5px;
    }
    
    .nav-link {
        padding: 2px 4px;
        font-size: 0.75rem;
    }
    
    .nav-actions {
        min-width: 100px;
        gap: 0.3rem;
    }
    
    .nav-action-button {
        padding: 3px 6px;
        font-size: 0.7rem;
        max-width: 80px;
        min-width: 65px;
    }
    
    .nav-theme-switch {
        width: 32px;
        height: 32px;
        padding: 3px;
    }
}

/* Smart positioning for dropdowns */
@media (max-width: 1200px) {
    .nav-item {
        margin: 0 1px;
    }
    
    .nav-link {
        padding: 3px 6px;
        font-size: 0.8rem;
    }
    
    .nav-actions {
        min-width: 60px;
        gap: 0.4rem;
    }
    
    .nav-action-button {
        padding: 3px 8px;
        font-size: 0.75rem;
        max-width: 60px;
        min-width: 35px;
    }
    
    .submenu {
        width: 350px;
        max-width: 350px;
    }
    
    .submenu-columns {
        min-height: 180px;
        max-height: 250px;
    }
    
    /* Компактное третье меню для средних экранов */
    .sub-submenu {
        min-width: 350px;
        max-width: 400px;
    }
    
    .sub-submenu-columns {
        min-height: 150px;
        max-height: 250px;
    }
}

@media (max-width: 900px) {
    .submenu {
        width: 300px;
        max-width: 300px;
    }
    
    .submenu-columns {
        flex-direction: column;
        min-height: auto;
        max-height: none;
    }
    
    .submenu-column {
        border-right: none;
        border-bottom: 1px solid var(--nav-border);
        padding: 15px 0;
    }
    
    .submenu-column:last-child {
        border-bottom: none;
    }
    
    /* Адаптация третьего уровня меню */
    .sub-submenu {
        min-width: 280px;
        max-width: 320px;
    }
    
    .sub-submenu-columns {
        flex-direction: column;
        min-height: auto;
        max-height: none;
    }
    
    .sub-submenu-column {
        border-right: none;
        border-bottom: 1px solid var(--nav-border);
        padding: 15px 0;
    }
    
    .sub-submenu-column:last-child {
        border-bottom: none;
    }
}

/* Focus and accessibility */
.nav-link:focus-visible,
.submenu-link:focus-visible,
.sub-submenu-link:focus-visible {
    outline: 2px solid var(--nav-focus-color);
    outline-offset: 2px;
}

/* Плавные переходы для dropdown (desktop) */
.nav-item .submenu,
.submenu-item .sub-submenu {
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
}

/* Принудительное предотвращение наложения элементов */
.nav-item:last-child {
    margin-right: 0 !important;
}

.nav-actions {
    position: relative;
    z-index: 10;
}

.nav-action-button {
    position: relative;
    z-index: 11;
}

.nav-theme-switch {
    position: relative;
    z-index: 12;
}

/* Dark theme adjustments */
[data-theme="dark"] .nav-wrapper {
    background: var(--nav-bg);
}

[data-theme="dark"] .nav-wrapper.scrolled {
    background: rgba(26, 32, 44, 0.95);
}

[data-theme="dark"] .burger-line {
    background: #fff !important;
}

[data-theme="dark"] .burger-menu {
    background: transparent;
}

[data-theme="dark"] .burger-menu:hover,
[data-theme="dark"] .burger-menu:focus {
    background: rgba(255,255,255,0.08);
}

[data-theme="dark"] .nav-theme-switch {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    color: var(--nav-text);
}

[data-theme="dark"] .nav-theme-switch:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
    color: var(--nav-focus-color);
}

/* Print styles */
@media print {
    .nav-wrapper {
        position: static;
        box-shadow: none;
    }
    
    .nav-actions,
    .burger-menu {
        display: none !important;
    }
    
    .submenu,
    .sub-submenu {
        display: none !important;
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .nav-wrapper,
    .nav-link,
    .submenu,
    .sub-submenu,
    .burger-line {
        transition: none;
    }
    
    .nav-link:hover,
    .submenu-link:hover,
    .sub-submenu-link:hover {
        transform: none;
    }
}

/* ===============================
   БЫСТРАЯ НАВИГАЦИЯ
   =============================== */

.quick-nav {
    position: fixed;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 100;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-radius: 30px;
    padding: 15px 10px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.quick-nav__list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.quick-nav__item {
    position: relative;
}

.quick-nav__link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    color: var(--color-text);
    text-decoration: none;
    transition: 0.3s;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.quick-nav__link:hover {
    background: var(--color-primary);
    color: #fff;
    transform: translateX(-5px);
}

.quick-nav__link i {
    font-size: 18px;
}

.quick-nav__link::before {
    content: attr(data-tooltip);
    position: absolute;
    right: calc(100% + 15px);
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    color: var(--color-text);
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 14px;
    white-space: nowrap;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    opacity: 0;
    visibility: hidden;
    transition: 0.3s;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.quick-nav__link::after {
    content: '';
    position: absolute;
    right: calc(100% + 5px);
    top: 50%;
    transform: translateY(-50%);
    border: 6px solid transparent;
    border-left-color: rgba(255, 255, 255, 0.95);
    opacity: 0;
    visibility: hidden;
    transition: 0.3s;
}

.quick-nav__link:hover::after,
.quick-nav__link:hover::before {
    opacity: 1;
    visibility: visible;
}

.quick-nav__link.active {
    background: var(--color-primary);
    color: #fff;
}

/* Темная тема для быстрой навигации */
[data-theme="dark"] .quick-nav {
    background: rgba(26, 26, 26, 0.9);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .quick-nav__link {
    background: rgba(45, 45, 45, 0.8);
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .quick-nav__link::before {
    background: rgba(26, 26, 26, 0.95);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .quick-nav__link::after {
    border-left-color: rgba(26, 26, 26, 0.95);
}

/* Адаптивность для быстрой навигации */
@media (max-width: 768px) {
    .quick-nav {
        right: 10px;
        padding: 10px 5px;
    }
    
    .quick-nav__link {
        width: 35px;
        height: 35px;
    }
    
    .quick-nav__link i {
        font-size: 16px;
    }
    
    .quick-nav__link::after,
    .quick-nav__link::before {
        display: none;
    }
}

/* Скрытие быстрой навигации на очень маленьких экранах */
@media (max-width: 480px) {
    .quick-nav {
        display: none;
    }
}

/* Анимация появления */
.nav-menu-mobile.active {
    right: 0;
    animation: slideInRight 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
    }
    to {
        transform: translateX(0);
    }
}

/* Дополнительные стили для обеспечения корректной работы мобильного меню */
.nav-menu-mobile {
    /* Убеждаемся, что меню скрыто по умолчанию */
    right: -100%;
    /* Обеспечиваем правильное позиционирование */
    position: fixed;
    top: 0;
    width: 100%;
    height: 100vh;
    z-index: var(--nav-burger-z-index);
    /* Плавная анимация */
    transition: right 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Стили для overlay */
.nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--overlay-bg);
    z-index: var(--nav-overlay-z-index);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.nav-overlay.visible {
    opacity: 1;
    visibility: visible;
}

/* Стили для бургер-меню */
.burger-menu {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 30px;
    height: 30px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: var(--nav-burger-z-index);
}

.burger-line {
    width: 100%;
    height: 3px;
    background: var(--nav-text);
    border-radius: 2px;
    transition: var(--nav-transition);
}

/* Анимация бургер-меню */
.burger-menu.active .burger-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.burger-menu.active .burger-line:nth-child(2) {
    opacity: 0;
}

.burger-menu.active .burger-line:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Скрытие скролла при открытом меню */
body.no-scroll {
    overflow: hidden;
}

/* Адаптивность для мобильных и планшетов */
@media (max-width: 992px) {
    .burger-menu {
        display: flex;
    }
    .nav-menu-desktop {
        display: none;
    }
    .nav-menu-mobile {
        display: flex;
    }
}
@media (min-width: 993px) {
    .nav-menu-mobile {
        display: none;
    }
    .burger-menu {
        display: none;
    }
}

/* Скрытие скроллбара для мобильного меню */
.nav-menu-mobile::-webkit-scrollbar {
    width: 0;
    background: transparent;
}

.nav-menu-mobile-list::-webkit-scrollbar {
    width: 0;
    background: transparent;
}

/* --- ГАРАНТИРОВАННОЕ ВЫРАВНИВАНИЕ СПРАВА --- */
.nav-right {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-left: auto;
}

.burger-menu {
    margin-left: 0;
}

.nav-actions {
    margin-left: 0;
}

/* --- ГАРАНТИЯ ВЫРАВНИВАНИЯ ЛОГОТИПА СЛЕВА --- */
.nav-container {
  display: flex !important;
  align-items: center !important;
  justify-content: flex-start !important;
  flex-wrap: nowrap !important;
  min-width: 0 !important;
  width: 100% !important;
  gap: 0.5rem !important;
  position: relative !important;
  height: 80px !important;
  padding: 0 20px !important;
  box-sizing: border-box !important;
  text-align: left !important;
}
.nav-brand {
  display: flex !important;
  align-items: center !important;
  justify-content: flex-start !important;
  margin-left: 0 !important;
  margin-right: 0.5rem !important;
  flex-shrink: 0 !important;
}


/* --- ГАРАНТИЯ КОРРЕКТНОЙ РАБОТЫ МОБИЛЬНОГО МЕНЮ --- */

.nav-menu-mobile-list {
  padding: 0;
  margin: 0;
  list-style: none;
}

.nav-mobile-item {
  position: relative;
  border-bottom: 1px solid var(--nav-border, #222);
  background: none;
}

.nav-mobile-item.has-children > .nav-menu-link {
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-dropdown-arrow {
  margin-left: 0.5em;
  transition: transform 0.2s;
  display: inline-block;
}

.nav-mobile-item .nav-dropdown {
  display: none;
  padding-left: 1.5em;
  background: none;
  border: none;
}

.nav-mobile-item.dropdown-open > .nav-dropdown {
  display: block;
  animation: fadeInMenu 0.2s;
}

.nav-mobile-item.dropdown-open > .nav-menu-link .nav-dropdown-arrow {
  transform: rotate(180deg);
}

@keyframes fadeInMenu {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Тёмная тема для мобильного меню */
[data-theme="dark"] .nav-menu-mobile,
[data-theme="dark"] .nav-mobile-header,
[data-theme="dark"] .nav-mobile-search,
[data-theme="dark"] .nav-mobile-quick-actions,
[data-theme="dark"] .nav-mobile-breadcrumbs,
[data-theme="dark"] .nav-menu-mobile-list,
[data-theme="dark"] .nav-mobile-item,
[data-theme="dark"] .nav-dropdown {
  background: #18191a !important;
  color: #e0e0e0 !important;
  border-color: #222 !important;
}
[data-theme="dark"] .nav-menu-link,
[data-theme="dark"] .nav-mobile-quick-action {
  color: #7ecbff !important;
}
[data-theme="dark"] .nav-menu-link.active,
[data-theme="dark"] .nav-menu-link:focus,
[data-theme="dark"] .nav-menu-link:hover {
  background: #23272b !important;
  color: #fff !important;
}
[data-theme="dark"] .nav-dropdown-arrow {
  color: #7ecbff !important;
}