/* CSS Variables */
:root {
    --font-family: Inter, system-ui, -apple-system, sans-serif;
    --font-size: 16px;
    --line-height: 1.6;

    /* Colors */
    --color-primary: #2563eb;
    --color-primary-dark: #1d4ed8;
    --color-secondary: #64748b;
    --color-accent: #f59e0b;
    --color-success: #10b981;
    --color-danger: #ef4444;
    --color-warning: #f59e0b;

    --color-bg: #ffffff;
    --color-bg-secondary: #f8fafc;
    --color-bg-dark: #1e293b;

    --color-text: #1e293b;
    --color-text-secondary: #64748b;
    --color-text-light: #94a3b8;

    --color-border: #e2e8f0;
    --color-border-light: #f1f5f9;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Border radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

    /* Transitions */
    --transition: all 0.2s ease-in-out;
}

/* RTL Support */
[dir="rtl"] {
    --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: var(--font-size);
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size);
    line-height: var(--line-height);
    color: var(--color-text);
    background-color: var(--color-bg);
    transition: var(--transition);
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

h5 {
    font-size: 1.125rem;
}

h6 {
    font-size: 1rem;
}

p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--color-primary-dark);
}

/* Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    width: 100%;
    box-sizing: border-box;
}

/* Header */
.site-header {
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.main-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-lg);
}

.nav-left .logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
}

.nav-center {
    flex: 1;
    display: flex;
    justify-content: center;
}

/* Dropdown Navigation */
.nav-dropdown {
    position: relative;
    display: inline-block;
}

.nav-dropdown-btn {
    background-color: var(--color-primary);
    color: white;
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: var(--transition);
}

.nav-dropdown-btn:hover {
    background-color: var(--color-primary-dark);
}

.dropdown-arrow {
    font-size: 0.75rem;
    transition: var(--transition);
}

.nav-dropdown-content {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-bg);
    min-width: 200px;
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    z-index: 1001;
    overflow: hidden;
}

.nav-dropdown-content.show {
    display: block;
}

.nav-dropdown-content .nav-link {
    color: var(--color-text);
    padding: var(--spacing-sm) var(--spacing-lg);
    text-decoration: none;
    display: block;
    transition: var(--transition);
    border-bottom: 1px solid var(--color-border-light);
}

.nav-dropdown-content .nav-link:last-child {
    border-bottom: none;
}

.nav-dropdown-content .nav-link:hover {
    background-color: var(--color-bg-secondary);
    color: var(--color-primary);
}

/* RTL Dropdown Support */
[dir="rtl"] .nav-dropdown-content {
    left: auto;
    right: 0;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

/* Language Switcher */
.language-switcher {
    position: relative;
    display: inline-block;
}

.lang-dropdown-btn {
    background-color: var(--color-bg-secondary);
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 0.875rem;
    transition: var(--transition);
    min-width: 120px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-sm);
    white-space: nowrap;
}

.lang-dropdown-btn:hover {
    background-color: var(--color-border-light);
    color: var(--color-text);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.lang-dropdown-btn:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.language-dropdown-content.show~.lang-dropdown-btn,
.language-dropdown-content.show+.lang-dropdown-btn {
    background-color: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
}

.current-lang {
    font-weight: 500;
}

.language-switcher .dropdown-arrow {
    font-size: 0.75rem;
    transition: var(--transition);
    transform: rotate(0deg);
}

.language-dropdown-content.show~.lang-dropdown-btn .dropdown-arrow,
.language-dropdown-content.show+.lang-dropdown-btn .dropdown-arrow {
    transform: rotate(180deg);
}

.language-dropdown-content {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-bg);
    min-width: 120px;
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    z-index: 1001;
    overflow: hidden;
    margin-top: var(--spacing-xs);
    opacity: 0;
    transform: translateY(-10px);
    transition: all 0.2s ease-in-out;
}

.language-dropdown-content.show {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

/* Мобильный backdrop для dropdown */
@media (max-width: 768px) {
    .language-dropdown-content.show::before {
        content: '';
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background-color: transparent;
        z-index: -1;
    }
}

.lang-option {
    background: none;
    border: none;
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
    cursor: pointer;
    font-size: 0.875rem;
    color: var(--color-text);
    transition: var(--transition);
    border-bottom: 1px solid var(--color-border-light);
    position: relative;
}

.lang-option:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: -2px;
    background-color: var(--color-bg-secondary);
}

.lang-option:last-child {
    border-bottom: none;
}

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

.lang-option[data-lang="{{ lang }}"] {
    background-color: var(--color-primary);
    color: white;
    font-weight: 500;
}

.lang-option[data-lang="{{ lang }}"]:hover {
    background-color: var(--color-primary-dark);
    color: white;
}

/* RTL Support for dropdown */
[dir="rtl"] .language-dropdown-content {
    left: auto;
    right: 0;
}

[dir="rtl"] .lang-option {
    text-align: right;
}

/* Font Size Controls */
.font-size-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    background-color: var(--color-bg-secondary);
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    min-width: 120px;
    justify-content: center;
}

.font-size-label {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    font-weight: 500;
}

.font-size-btn {
    background-color: var(--color-primary);
    color: white;
    border: none;
    width: 24px;
    height: 24px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 1rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.font-size-btn:hover {
    background-color: var(--color-primary-dark);
}

.font-size-value {
    font-size: 0.875rem;
    color: var(--color-text);
    font-weight: 500;
    min-width: 40px;
    text-align: center;
}

/* Main Content */
.main-content {
    min-height: calc(100vh - 200px);
    padding: var(--spacing-xl) 0;
    width: 100%;
    max-width: 100%;
    overflow-x: hidden;
}

/* Home Page */
.home-page {
    padding: var(--spacing-xl) 0;
}

.page-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.page-title {
    font-size: 3rem;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
}

.page-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    font-size: 2.5rem;
    color: var(--color-text);
}

/* Featured Articles */
.featured-articles {
    margin-bottom: var(--spacing-2xl);
    width: 100%;
    max-width: 100%;
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
    width: 100%;
    max-width: 100%;
}

.article-card {
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.article-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.article-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
    background-color: var(--color-bg-secondary);
}

.article-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.article-card:hover .article-image img {
    transform: scale(1.05);
}

.article-content {
    padding: var(--spacing-lg);
}

.article-title {
    margin-bottom: var(--spacing-md);
    line-height: 1.3;
}

.article-title a {
    color: var(--color-text);
    font-size: 1.25rem;
    font-weight: 700;
}

.article-title a:hover {
    color: var(--color-primary);
}

.article-excerpt {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
    font-size: 0.95rem;
}

.read-more {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: var(--color-primary);
    color: white;
    border-radius: var(--radius-md);
    font-weight: 500;
    transition: var(--transition);
    text-decoration: none;
}

.read-more:hover {
    background-color: var(--color-primary-dark);
    text-decoration: none;
    transform: translateY(-2px);
}

.about-section {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.about-text {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* Footer */
.site-footer {
    background-color: var(--color-bg-dark);
    color: var(--color-text-light);
    padding: var(--spacing-xl) 0;
    margin-top: var(--spacing-2xl);
    text-align: center;
}

/* Responsive Design */
@media (max-width: 768px) {

    /* Header адаптация */
    .site-header {
        padding: var(--spacing-sm) 0;
    }

    .main-nav {
        flex-direction: column;
        gap: var(--spacing-md);
        align-items: stretch;
    }

    .nav-left {
        order: 1;
        text-align: center;
    }

    .nav-center {
        order: 2;
        width: 100%;
    }

    .nav-right {
        flex-direction: column;
        gap: var(--spacing-md);
        order: 3;
        width: 100%;
        align-items: stretch;
    }

    /* Навигационные ссылки */
    .nav-links {
        display: flex;
        flex-direction: column;
        gap: var(--spacing-sm);
        width: 100%;
    }

    .nav-links li {
        width: 100%;
    }

    .nav-links .nav-link {
        display: block;
        padding: var(--spacing-sm) var(--spacing-md);
        text-align: center;
        background-color: var(--color-bg-secondary);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-md);
        transition: var(--transition);
    }

    .nav-links .nav-link:hover {
        background-color: var(--color-primary);
        color: white;
    }

    /* Переключатель языков */
    .language-switcher {
        width: 100%;
        position: relative;
    }

    .lang-dropdown-btn {
        width: 100%;
        padding: var(--spacing-sm) var(--spacing-md);
        text-align: center;
        font-size: 1rem;
        border-radius: var(--radius-md);
        justify-content: center;
    }

    .language-dropdown-content {
        width: 100%;
        left: 0;
        right: 0;
        min-width: 100%;
        position: fixed;
        top: auto;
        bottom: 0;
        left: 0;
        right: 0;
        width: 100%;
        border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        margin-top: 0;
        max-height: 50vh;
        overflow-y: auto;
        box-shadow: var(--shadow-xl);
        border: none;
        border-top: 3px solid var(--color-primary);
    }

    .lang-option {
        text-align: center;
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 1rem;
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
        border-bottom: 1px solid var(--color-border-light);
    }

    .lang-option:last-child {
        border-bottom: none;
    }

    /* Управление размером шрифта */
    .font-size-controls {
        flex-direction: column;
        gap: var(--spacing-sm);
        width: 100%;
        padding: var(--spacing-md);
        align-items: center;
        background-color: var(--color-bg);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-md);
    }

    .font-size-label {
        font-size: 1rem;
        font-weight: 600;
        color: var(--color-text);
    }

    .font-size-btn {
        width: 40px;
        height: 40px;
        font-size: 1.25rem;
        font-weight: 700;
        border-radius: var(--radius-md);
    }

    .font-size-value {
        min-width: 60px;
        font-size: 1.125rem;
        font-weight: 600;
        color: var(--color-text);
        padding: var(--spacing-xs) var(--spacing-sm);
        background-color: var(--color-bg-secondary);
        border-radius: var(--radius-sm);
        text-align: center;
    }

    /* Основной контент */
    .page-title {
        font-size: 2rem;
    }

    .articles-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
        width: 100%;
        max-width: 100%;
    }

    .article-card {
        width: 100%;
        max-width: 100%;
        margin: 0;
    }

    .article-content {
        padding: var(--spacing-md);
    }

    .article-title a {
        font-size: 1.125rem;
        word-wrap: break-word;
        overflow-wrap: break-word;
    }

    .article-excerpt {
        font-size: 0.875rem;
        word-wrap: break-word;
        overflow-wrap: break-word;
    }

    .nav-dropdown-content {
        min-width: 150px;
    }

    /* Контейнер */
    .container {
        padding: 0 var(--spacing-md);
    }
}

@media (max-width: 480px) {

    /* Header для очень маленьких экранов */
    .site-header {
        padding: var(--spacing-xs) 0;
    }

    .main-nav {
        gap: var(--spacing-sm);
    }

    .nav-left .logo {
        font-size: 1.25rem;
    }

    /* Навигационные ссылки */
    .nav-links .nav-link {
        padding: var(--spacing-sm);
        font-size: 0.875rem;
    }

    /* Переключатель языков */
    .lang-dropdown-btn {
        padding: var(--spacing-sm);
        font-size: 0.875rem;
    }

    .lang-option {
        padding: var(--spacing-sm);
        font-size: 0.875rem;
        min-height: 40px;
    }

    /* Управление размером шрифта */
    .font-size-controls {
        padding: var(--spacing-sm);
        gap: var(--spacing-sm);
    }

    .font-size-btn {
        width: 36px;
        height: 36px;
        font-size: 1.125rem;
    }

    .font-size-value {
        min-width: 50px;
        font-size: 1rem;
        padding: var(--spacing-xs);
    }

    /* Контейнер */
    .container {
        padding: 0 var(--spacing-sm);
    }

    /* Основной контент */
    .page-title {
        font-size: 1.75rem;
    }

    .nav-dropdown-btn {
        padding: var(--spacing-sm);
        font-size: 0.875rem;
    }

    /* Статьи для очень маленьких экранов */
    .articles-grid {
        gap: var(--spacing-md);
        padding: 0 var(--spacing-xs);
    }

    .article-card {
        border-radius: var(--radius-md);
    }

    .article-content {
        padding: var(--spacing-sm);
    }

    .article-title a {
        font-size: 1rem;
    }

    .article-excerpt {
        font-size: 0.8rem;
    }
}

/* Планшеты */
@media (min-width: 769px) and (max-width: 1024px) {
    .main-nav {
        gap: var(--spacing-md);
    }

    .nav-right {
        gap: var(--spacing-md);
    }

    .language-switcher {
        gap: var(--spacing-xs);
    }

    .lang-dropdown-btn {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: 0.875rem;
        min-width: 100px;
    }

    .lang-option {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: 0.875rem;
        min-height: 36px;
    }

    .font-size-controls {
        gap: var(--spacing-xs);
        padding: var(--spacing-xs);
    }

    .font-size-btn {
        width: 26px;
        height: 26px;
        font-size: 0.875rem;
    }

    .font-size-value {
        min-width: 45px;
        font-size: 0.875rem;
    }

    /* Статьи для планшетов */
    .articles-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: var(--spacing-lg);
    }

    .article-card {
        max-width: 100%;
    }

    .article-content {
        padding: var(--spacing-md);
    }

    .article-title a {
        font-size: 1.125rem;
    }

    .article-excerpt {
        font-size: 0.9rem;
    }
}

/* Accessibility - removed sr-only class */

/* Hero Image Styles */
.hero-image-container {
    width: 100%;
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
    text-align: center;
    overflow: hidden;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.hero-image {
    max-width: 600px;
    width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.75rem;
    }

    h3 {
        font-size: 1.25rem;
    }

    .hero-image-container {
        margin-bottom: var(--spacing-lg);
        border-radius: var(--radius-md);
        max-width: 600px;
    }

    .cards {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .card-title {
        font-size: 1rem;
        line-height: 1.3;
    }

    .card-desc {
        font-size: 0.875rem;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 1.75rem;
    }

    .hero-image-container {
        max-width: 400px;
    }

    .home-hero {
        padding: var(--spacing-lg) var(--spacing-md);
    }

    .cards {
        padding: 0 var(--spacing-md);
    }
}

.hero-image:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-lg);
}

@media (max-width: 768px) {
    .hero-image {
        max-width: 500px;
        border-radius: var(--radius-sm);
    }
}

@media (max-width: 480px) {
    .hero-image {
        max-width: 400px;
        border-radius: var(--radius-sm);
        box-shadow: var(--shadow-sm);
    }
}