/* Основные переменные */
:root {
    --primary-color: #ff3333;
    --primary-hover: #e62e2e;
    --secondary-color: #ff6b6b;
    --text-color: #333;
    --light-text: #666;
    --light-bg: #f8f9fa;
    --white: #fff;
    --border-color: #e1e1e1;
    --shadow: 0 4px 12px rgba(0,0,0,0.1);
    --transition: all 0.3s ease;
    --dark-color: #1a1a1a;
}

/* Сброс стилей */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    background: var(--white);
    box-shadow: var(--shadow);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    height: 60px;
}

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--text-color);
    font-size: 24px;
    font-weight: bold;
}

.logo i {
    margin-right: 10px;
    color: var(--primary-color);
}

.yandex {
    color: var(--primary-color);
}

.logo-text {
    display: flex;
    align-items: center;
    gap: 5px;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 30px;
    margin: 0;
    padding: 0;
}

nav a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: var(--transition);
    padding: 5px 0;
    position: relative;
}

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

nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

nav a:hover::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    color: var(--text-color);
    cursor: pointer;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    border-radius: 5px;
    transition: var(--transition);
}

.mobile-menu-btn:hover {
    background: var(--light-bg);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--white);
    padding: 160px 0 80px;
    text-align: center;
    margin-top: 60px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.05) 100%);
    opacity: 0.1;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-content p {
    font-size: 1.2rem;
    max-width: 800px;
    margin: 0 auto 30px;
    opacity: 0.95;
}

.hero-badges {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.badge {
    background: rgba(255, 255, 255, 0.15);
    padding: 12px 25px;
    border-radius: 50px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    font-weight: 500;
    transition: var(--transition);
}

.badge:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-2px);
}

.cta-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    background: var(--primary-color);
    color: var(--white);
    padding: 18px 40px;
    font-size: 1.2rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 50px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    margin: 0 auto;
    min-width: 300px;
    box-shadow: 0 8px 20px rgba(255, 51, 51, 0.3);
}

.cta-button:hover {
    background: var(--primary-hover);
    transform: translateY(-3px);
    box-shadow: 0 12px 25px rgba(255, 51, 51, 0.4);
}

.cta-button:active {
    transform: translateY(-1px);
}

/* Sections */
section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 50px;
    color: var(--dark-color);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 3px;
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    background: var(--white);
    padding: 30px;
    border-radius: 15px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
    border: 1px solid transparent;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.15);
    border-color: rgba(255, 51, 51, 0.1);
}

.feature-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: var(--white);
    font-size: 24px;
    transition: var(--transition);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.feature-card p {
    color: var(--light-text);
    line-height: 1.7;
}

/* Comparison Table */
.comparison-table {
    background: var(--white);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow);
    margin-top: 30px;
}

.table-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.table-row:not(.header):hover {
    background: var(--light-bg);
}

.table-row.header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    font-weight: 600;
    font-size: 1.1rem;
}

.table-cell {
    padding: 20px;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 70px;
}

.table-cell:first-child {
    justify-content: flex-start;
    padding-left: 30px;
    font-weight: 500;
}

.table-cell.check {
    color: #4CAF50;
    font-size: 20px;
}

.table-cell.cross {
    color: #f44336;
    font-size: 20px;
}

/* Download Section */
#download {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    position: relative;
}

/* Стили для обновленного Download Section */
.download-section {
    text-align: center;
    padding: 60px 40px;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    border-radius: 20px;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.08);
    margin: 40px auto;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.download-section .section-title {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: var(--text-color);
    font-weight: 700;
}

.download-stats {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin: 40px 0;
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
    min-width: 120px;
}

.stat-number {
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--primary-color);
    display: block;
    line-height: 1;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.stat-label {
    font-size: 0.95rem;
    color: var(--light-text);
    margin-top: 8px;
    display: block;
}

.cta-button.large-button {
    padding: 22px 50px;
    font-size: 1.4rem;
    border-radius: 60px;
    margin: 30px auto;
    display: block;
    background: linear-gradient(135deg, var(--primary-color), #ff8c00);
    box-shadow: 0 10px 30px rgba(255, 140, 0, 0.3);
    transition: all 0.3s ease;
    border: none;
    color: white;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.cta-button.large-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(255, 140, 0, 0.4);
    background: linear-gradient(135deg, #ff5722, #ff9800);
}

.cta-button.large-button:active {
    transform: translateY(-1px);
    box-shadow: 0 5px 20px rgba(255, 140, 0, 0.3);
}

.cta-button.large-button .subtext {
    display: block;
    font-size: 0.95rem;
    opacity: 0.9;
    margin-top: 8px;
    font-weight: 400;
}

.security-badge {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 16px 28px;
    background: rgba(76, 175, 80, 0.1);
    border-radius: 30px;
    margin: 25px 0;
    color: #2e7d32;
    font-weight: 500;
    border: 1px solid rgba(76, 175, 80, 0.2);
}

.security-badge i {
    font-size: 1.3rem;
}

.os-hint {
    margin: 20px 0 30px;
    color: var(--light-text);
    font-size: 1rem;
    line-height: 1.6;
}

.license {
    margin-top: 30px;
    font-size: 0.85rem;
    color: #777;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.5;
}

/* Адаптивность */
@media (max-width: 768px) {
    .download-section {
        padding: 40px 20px;
        margin: 30px auto;
    }
    
    .download-section .section-title {
        font-size: 2rem;
    }
    
    .download-stats {
        gap: 25px;
    }
    
    .stat-item {
        min-width: 90px;
    }
    
    .stat-number {
        font-size: 2.2rem;
    }
    
    .cta-button.large-button {
        padding: 18px 30px;
        font-size: 1.2rem;
        width: 100%;
        max-width: 100%;
    }
    
    .security-badge {
        padding: 14px 20px;
        font-size: 0.9rem;
        flex-direction: column;
        text-align: center;
    }
}
/* OS Buttons */
.os-buttons {
    margin: 40px 0;
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    justify-content: center;
}

.os-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    background: var(--primary-color);
    color: var(--white);
    padding: 18px 30px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 10px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    min-width: 200px;
    box-shadow: 0 5px 15px rgba(255, 51, 51, 0.2);
}

.os-button:hover {
    background: var(--primary-hover);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(255, 51, 51, 0.3);
}

/* Компактные кнопки */
.os-buttons.compact {
    margin: 25px 0;
    gap: 12px;
}

.os-button.compact-btn {
    padding: 14px 20px;
    font-size: 14px;
    border-radius: 8px;
    min-width: 160px;
    max-width: 180px;
    gap: 8px;
}

.os-button.compact-btn i {
    font-size: 16px;
}

.security-badge {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: var(--light-bg);
    padding: 15px 30px;
    border-radius: 50px;
    color: var(--light-text);
    margin-top: 30px;
    border: 1px solid var(--border-color);
    font-weight: 500;
}

.security-badge i {
    color: #4CAF50;
    font-size: 18px;
}

/* FAQ */
.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--white);
    margin-bottom: 15px;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid transparent;
}

.faq-item:hover {
    border-color: rgba(255, 51, 51, 0.2);
}

.faq-question {
    padding: 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--dark-color);
    transition: var(--transition);
}

.faq-question:hover {
    background: var(--light-bg);
}

.faq-question i {
    transition: var(--transition);
    color: var(--primary-color);
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 25px;
    max-height: 0;
    overflow: hidden;
    transition: var(--transition);
    line-height: 1.7;
}

.faq-item.active .faq-answer {
    padding: 0 25px 25px;
    max-height: 500px;
}

/* Footer */
footer {
    background: #2c3e50;
    color: var(--white);
    padding: 60px 0 30px;
    position: relative;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-column h3 {
    margin-bottom: 20px;
    font-size: 1.2rem;
    color: var(--white);
    position: relative;
    padding-bottom: 10px;
}

.footer-column h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--primary-color);
}

.footer-column ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-column li {
    margin-bottom: 12px;
    display: flex;
    align-items: center;
}

.footer-column li::before {
    content: '›';
    margin-right: 8px;
    color: var(--primary-color);
    font-weight: bold;
}

.footer-column a {
    color: #bdc3c7;
    text-decoration: none;
    transition: var(--transition);
    font-size: 0.95rem;
}

.footer-column a:hover {
    color: var(--white);
    padding-left: 5px;
}

.copyright {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: #bdc3c7;
    font-size: 0.9rem;
    line-height: 1.6;
}

.copyright p {
    margin: 0;
}

/* SEO Text Section - Расширенные стили */
#seo-text {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    position: relative;
    padding: 80px 0;
}

.seo-content {
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    border-radius: 20px;
    padding: 60px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 51, 51, 0.1);
    position: relative;
    overflow: hidden;
    max-width: 1200px;
    margin: 0 auto;
}

.seo-content::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(255, 51, 51, 0.08) 0%, transparent 70%);
    z-index: 0;
}

.seo-content::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(102, 126, 234, 0.08) 0%, transparent 70%);
    z-index: 0;
}

/* Заголовок */
.seo-title {
    color: var(--dark-color);
    font-size: 2.8rem;
    margin-bottom: 40px;
    text-align: center;
    position: relative;
    padding-bottom: 25px;
    font-weight: 700;
    line-height: 1.3;
    z-index: 1;
}

.seo-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
}

/* Контейнер для текста */
.seo-text-content {
    position: relative;
    z-index: 1;
    line-height: 1.8;
    color: var(--text-color);
    font-size: 1.05rem;
}

/* Параграфы */
.seo-paragraph {
    margin-bottom: 35px;
    position: relative;
    padding: 0 10px;
}

.seo-paragraph:last-of-type {
    margin-bottom: 0;
}

.seo-paragraph p {
    font-size: 1.2rem;
    line-height: 1.8;
    color: var(--text-color);
    margin-bottom: 25px;
    text-align: justify;
    font-weight: 400;
}

.seo-paragraph p:last-child {
    margin-bottom: 0;
}

/* Акцентные стили */
.seo-highlight {
    color: var(--primary-color);
    font-weight: 700;
    font-size: 1.3rem;
    position: relative;
    padding: 0 5px;
}

.seo-highlight::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    opacity: 0.5;
    border-radius: 1px;
}

/* Ключевые слова */
.seo-keyword {
    color: var(--primary-color);
    background: linear-gradient(135deg, rgba(255, 51, 51, 0.1), rgba(255, 107, 107, 0.1));
    padding: 4px 12px;
    border-radius: 6px;
    font-weight: 600;
    margin: 0 4px;
    transition: var(--transition);
    display: inline-block;
    border: 1px solid rgba(255, 51, 51, 0.2);
    position: relative;
    cursor: pointer;
}

.seo-keyword:hover {
    background: linear-gradient(135deg, rgba(255, 51, 51, 0.15), rgba(255, 107, 107, 0.15));
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 51, 51, 0.15);
    border-color: rgba(255, 51, 51, 0.3);
}

.seo-keyword::before {
    content: '#';
    margin-right: 2px;
    opacity: 0.7;
    font-weight: 400;
}

/* Подзаголовки */
.seo-subtitle {
    color: var(--dark-color);
    font-size: 2rem;
    margin: 50px 0 30px;
    font-weight: 600;
    text-align: center;
    position: relative;
    padding-bottom: 20px;
}

.seo-subtitle::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 3px;
}

/* SEO Features Grid */
.seo-features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin: 50px 0;
    position: relative;
    z-index: 1;
}

.seo-feature {
    background: linear-gradient(135deg, var(--white) 0%, var(--light-bg) 100%);
    padding: 35px;
    border-radius: 15px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
    border: 1px solid rgba(255, 51, 51, 0.1);
    position: relative;
    overflow: hidden;
}

.seo-feature::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 5px;
    height: 100%;
    background: linear-gradient(to bottom, var(--primary-color), var(--secondary-color));
}

.seo-feature:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
    border-color: rgba(255, 51, 51, 0.3);
}

.seo-feature:hover::before {
    background: linear-gradient(to bottom, var(--secondary-color), var(--primary-color));
}

.seo-feature-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    color: var(--white);
    font-size: 28px;
    transition: var(--transition);
    box-shadow: 0 5px 15px rgba(255, 51, 51, 0.2);
}

.seo-feature:hover .seo-feature-icon {
    transform: rotate(15deg) scale(1.1);
    box-shadow: 0 8px 20px rgba(255, 51, 51, 0.3);
}

.seo-feature-content {
    text-align: center;
}

.seo-feature-content h4 {
    color: var(--dark-color);
    font-size: 1.6rem;
    margin-bottom: 15px;
    font-weight: 600;
    line-height: 1.3;
}

.seo-feature-content p {
    color: var(--light-text);
    line-height: 1.7;
    font-size: 1.05rem;
    margin: 0;
}

.seo-feature-content strong {
    color: var(--primary-color);
    font-weight: 600;
}

/* SEO Features List */
.seo-features-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin: 40px 0;
    position: relative;
    z-index: 1;
}

.seo-feature-item {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9), rgba(248, 249, 250, 0.9));
    padding: 25px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 20px;
    transition: var(--transition);
    border: 1px solid rgba(255, 51, 51, 0.1);
    backdrop-filter: blur(10px);
}

.seo-feature-item:hover {
    transform: translateY(-5px);
    background: linear-gradient(135deg, var(--white), var(--light-bg));
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    border-color: rgba(255, 51, 51, 0.3);
}

.seo-feature-item i {
    color: var(--primary-color);
    font-size: 28px;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, rgba(255, 51, 51, 0.1), rgba(255, 107, 107, 0.1));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: var(--transition);
}

.seo-feature-item:hover i {
    transform: scale(1.1);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    box-shadow: 0 5px 15px rgba(255, 51, 51, 0.2);
}

.seo-feature-item-content {
    flex: 1;
}

.seo-feature-item-content span {
    color: var(--dark-color);
    font-size: 1.1rem;
    line-height: 1.6;
    font-weight: 500;
}

.seo-feature-item-content strong {
    color: var(--primary-color);
    font-weight: 600;
    display: block;
    margin-bottom: 5px;
    font-size: 1.2rem;
}

/* SEO CTA */
.seo-cta {
    background: linear-gradient(135deg, rgba(255, 51, 51, 0.05), rgba(102, 126, 234, 0.05));
    border-radius: 15px;
    padding: 40px;
    margin-top: 60px;
    border: 1px solid rgba(255, 51, 51, 0.15);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.seo-cta::before {
    content: '';
    position: absolute;
    top: -50px;
    right: -50px;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(255, 51, 51, 0.1) 0%, transparent 70%);
    z-index: 0;
}

.seo-cta::after {
    content: '';
    position: absolute;
    bottom: -50px;
    left: -50px;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(102, 126, 234, 0.1) 0%, transparent 70%);
    z-index: 0;
}

.seo-cta-content {
    position: relative;
    z-index: 1;
    text-align: center;
}

.seo-cta-content p {
    font-size: 1.2rem;
    line-height: 1.8;
    color: var(--text-color);
    margin-bottom: 35px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* Анимации */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Адаптивность */
@media (max-width: 1200px) {
    .container {
        max-width: 100%;
        padding: 0 30px;
    }
}

@media (max-width: 992px) {
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2.2rem;
    }
    
    .seo-title {
        font-size: 1.8rem;
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: flex;
    }
    
    nav {
        position: fixed;
        top: 60px;
        left: 0;
        width: 100%;
        background: var(--white);
        padding: 20px;
        box-shadow: var(--shadow);
        display: none;
        z-index: 999;
    }
    
    nav.active {
        display: block;
    }
    
    nav ul {
        flex-direction: column;
        gap: 15px;
    }
    
    nav a {
        display: block;
        padding: 10px;
        border-radius: 5px;
    }
    
    nav a:hover {
        background: var(--light-bg);
    }
    
    nav a::after {
        display: none;
    }
    
    .hero {
        padding: 140px 0 60px;
        margin-top: 60px;
    }
    
    .hero-content h1 {
        font-size: 2.2rem;
        padding: 0 10px;
    }
    
    .hero-content p {
        font-size: 1.1rem;
        padding: 0 10px;
    }
    
    .cta-button {
        min-width: 250px;
        padding: 16px 30px;
        font-size: 1.1rem;
    }
    
    .section-title {
        font-size: 2rem;
        padding: 0 20px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .download-section {
        padding: 30px;
        margin: 0 10px;
    }
    
    .download-stats {
        gap: 30px;
    }
    
    .stat-item {
        min-width: 100px;
    }
    
    .stat-number {
        font-size: 2.2rem;
    }
    
    .os-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .os-button {
        width: 100%;
        max-width: 300px;
    }
    
    .os-buttons.compact {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .os-button.compact-btn {
        min-width: 140px;
        max-width: 160px;
    }
    
    .table-row {
        grid-template-columns: 1fr;
        border-bottom: 2px solid var(--border-color);
    }
    
    .table-row.header {
        display: none;
    }
    
    .table-cell {
        justify-content: center;
        text-align: center;
        padding: 15px;
    }
    
    .table-cell:first-child {
        background: var(--light-bg);
        font-weight: 600;
        border-top-left-radius: 8px;
        border-top-right-radius: 8px;
        justify-content: center;
        padding-left: 20px;
    }
    
    .seo-content {
        padding: 30px;
    }
    
    .seo-title {
        font-size: 1.6rem;
    }
    
    .seo-features-grid {
        grid-template-columns: 1fr;
    }
    
    .seo-features-list {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    section {
        padding: 60px 0;
    }
}

@media (max-width: 576px) {
    .container {
        padding: 0 15px;
    }
    
    .hero {
        padding: 120px 0 50px;
    }
    
    .hero-content h1 {
        font-size: 1.8rem;
    }
    
    .hero-content p {
        font-size: 1rem;
    }
    
    .hero-badges {
        flex-direction: column;
        align-items: center;
        gap: 10px;
    }
    
    .badge {
        width: 100%;
        max-width: 250px;
    }
    
    .cta-button {
        min-width: 200px;
        padding: 14px 25px;
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .download-section {
        padding: 25px 20px;
    }
    
    .download-stats {
        gap: 20px;
    }
    
    .stat-item {
        min-width: 80px;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .os-button.compact-btn {
        min-width: 120px;
        padding: 12px 15px;
        font-size: 13px;
    }
    
    .os-buttons.compact {
        gap: 8px;
    }
    
    .seo-content {
        padding: 25px 20px;
    }
    
    .seo-title {
        font-size: 1.4rem;
    }
    
    .seo-paragraph p {
        text-align: left;
    }
    
    .seo-feature {
        flex-direction: column;
        text-align: center;
        align-items: center;
    }
    
    .seo-feature-icon {
        margin-bottom: 15px;
    }
    
    .seo-cta {
        padding: 25px 20px;
    }
}

@media (max-width: 480px) {
    .header-container {
        padding: 10px 15px;
    }
    
    .logo {
        font-size: 20px;
    }
    
    .hero {
        padding: 100px 0 40px;
    }
    
    .hero-content h1 {
        font-size: 1.6rem;
    }
    
    .section-title {
        font-size: 1.6rem;
        margin-bottom: 30px;
    }
    
    .feature-card {
        padding: 20px;
    }
    
    .feature-icon {
        width: 60px;
        height: 60px;
        font-size: 20px;
    }
    
    .download-stats {
        flex-direction: column;
        gap: 25px;
    }
    
    .os-buttons.compact {
        flex-direction: column;
        align-items: center;
    }
    
    .os-button.compact-btn {
        width: 100%;
        max-width: 250px;
        margin-bottom: 8px;
    }
    
    .faq-question {
        padding: 20px;
        font-size: 1rem;
    }
    
    .faq-answer {
        padding: 0 20px;
    }
    
    .faq-item.active .faq-answer {
        padding: 0 20px 20px;
    }
}