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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.7;
    color: #2c3e50;
    background: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 30px;
}

header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 15px 0;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 28px;
    font-weight: 700;
    color: #2980b9;
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    gap: 35px;
}

.nav-links a {
    text-decoration: none;
    color: #34495e;
    font-weight: 500;
    position: relative;
    padding: 5px 0;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: #2980b9;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: #3498db;
    transition: width 0.3s ease;
}

.nav-links a:hover::after {
    width: 100%;
}

.hero {
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><rect width="100" height="100" fill="%233498db"/><path d="M0 50 Q 25 30, 50 50 T 100 50" stroke="%232980b9" stroke-width="1" fill="none"/></svg>');
    background-size: cover;
    background-color: #2980b9;
    color: white;
    padding: 150px 0 120px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, transparent 0%, rgba(0,0,0,0.2) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

.hero h1 {
    font-size: 3.2rem;
    margin-bottom: 25px;
    line-height: 1.2;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 40px;
    opacity: 0.95;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.btn {
    display: inline-block;
    background: linear-gradient(135deg, #e74c3c 0%, #c0392b 100%);
    color: white;
    padding: 16px 40px;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-shadow: 0 6px 15px rgba(231, 76, 60, 0.4);
    border: none;
    cursor: pointer;
    letter-spacing: 0.5px;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(231, 76, 60, 0.6);
    background: linear-gradient(135deg, #c0392b 0%, #e74c3c 100%);
}

.section {
    padding: 120px 0;
    position: relative;
}

.section-title {
    text-align: center;
    font-size: 2.8rem;
    margin-bottom: 70px;
    color: #2c3e50;
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(to right, #3498db, #2ecc71);
    border-radius: 2px;
}

.content-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
}

.section-subtitle {
    font-size: 1.9rem;
    margin-bottom: 30px;
    color: #2980b9;
    position: relative;
    padding-left: 30px;
}

.section-subtitle::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    background: #3498db;
    border-radius: 50%;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 40px;
    margin-top: 50px;
}

.benefit-card {
    background: white;
    padding: 40px 30px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
    text-align: center;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.benefit-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(to right, #3498db, #2ecc71);
}

.benefit-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}

.benefit-card h3 {
    color: #2c3e50;
    margin-bottom: 20px;
    font-size: 1.5rem;
}

.benefit-card p {
    color: #7f8c8d;
    font-size: 1.1rem;
}

.benefits-list {
    margin: 30px 0;
    padding-left: 30px;
}

.benefits-list li {
    margin-bottom: 15px;
    font-size: 1.1rem;
    color: #34495e;
    position: relative;
    padding-left: 25px;
}

.benefits-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #2ecc71;
    font-weight: bold;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin: 40px 0;
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
}

.comparison-table th, .comparison-table td {
    padding: 20px 15px;
    text-align: left;
    border-bottom: 1px solid #ecf0f1;
}

.comparison-table th {
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
    color: white;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 0.9rem;
}

.comparison-table tr:last-child td {
    border-bottom: none;
}

.comparison-table tr:nth-child(even) {
    background: #f8f9fa;
}

.examples-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin: 40px 0;
}

.example-card {
    background: linear-gradient(135deg, #f8f9fa 0%, #eef2f7 100%);
    padding: 30px;
    border-radius: 12px;
    border-left: 5px solid #3498db;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: transform 0.3s ease;
}

.example-card:hover {
    transform: translateY(-5px);
}

.example-card h4 {
    color: #2980b9;
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 40px;
    margin-top: 50px;
}

.service-card {
    background: white;
    padding: 40px 30px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
    text-align: center;
    transition: all 0.4s ease;
    border-top: 4px solid #3498db;
}

.service-card:hover {
    transform: scale(1.03);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}

.service-card h3 {
    color: #2c3e50;
    margin-bottom: 20px;
    font-size: 1.5rem;
}

.service-card p {
    color: #7f8c8d;
    font-size: 1.1rem;
}

.services-list {
    margin: 30px 0;
    padding-left: 30px;
}

.services-list li {
    margin-bottom: 15px;
    font-size: 1.1rem;
    color: #34495e;
    position: relative;
    padding-left: 25px;
}

.services-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: #3498db;
    font-size: 1.5rem;
    line-height: 1;
}

.cta {
    background: linear-gradient(135deg, #2ecc71 0%, #27ae60 100%);
    color: white;
    padding: 150px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="none"><polygon points="0,0 100,100 0,100" fill="rgba(255,255,255,0.05)"/></svg>');
    background-size: cover;
}

.cta-content {
    position: relative;
    z-index: 2;
    max-width: 700px;
    margin: 0 auto;
    padding: 0 20px;
}

.cta h2 {
    font-size: 2.8rem;
    margin-bottom: 25px;
}

.cta p {
    font-size: 1.3rem;
    margin-bottom: 40px;
    opacity: 0.95;
}

footer {
    background: #2c3e50;
    color: white;
    padding: 60px 0 30px;
    text-align: center;
}

.highlight {
    background: linear-gradient(120deg, #e6f0ff 0%, #d1e7ff 100%);
    padding: 3px 8px;
    border-radius: 5px;
    color: #2980b9;
    font-weight: 600;
    border: 1px solid #aed6f1;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Адаптация под мобильные устройства */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .nav-links {
        display: none;
    }
    
    .section-title {
        font-size: 2.2rem;
    }
    
    .hero {
        padding: 100px 0 80px;
    }
    
    .section {
        padding: 80px 0;
    }
    
    .content-container {
        padding: 0 15px;
    }
    
    .benefits-grid,
    .services-grid {
        grid-template-columns: 1fr; /* Одна колонка на мобильных */
        gap: 30px;
    }
    
    .benefit-card,
    .service-card {
        padding: 30px 20px;
    }
    
    .comparison-table {
        font-size: 0.9rem;
    }
    
    .comparison-table th,
    .comparison-table td {
        padding: 15px 10px;
    }
    
    .btn {
        padding: 14px 30px;
        font-size: 1rem;
    }
    
    .section-subtitle {
        font-size: 1.6rem;
    }
    
    .hero p {
        font-size: 1.1rem;
    }
    
    .container {
        padding: 0 15px;
    }
    
    .cta {
        padding: 100px 0;
    }
    
    .cta h2 {
        font-size: 2.2rem;
    }
    
    .cta p {
        font-size: 1.1rem;
    }
    
    nav {
        flex-direction: column;
        gap: 15px;
        align-items: flex-start;
    }
    
    .logo {
        font-size: 24px;
    }
}

/* Дополнительные стили для очень маленьких экранов */
@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .hero {
        padding: 80px 0 60px;
    }
    
    .section {
        padding: 60px 0;
    }
    
    .benefit-card,
    .service-card {
        padding: 25px 15px;
    }
    
    .comparison-table {
        font-size: 0.8rem;
    }
    
    .comparison-table th,
    .comparison-table td {
        padding: 12px 8px;
    }
    
    .btn {
        padding: 12px 25px;
        font-size: 0.95rem;
    }
    
    .section-subtitle {
        font-size: 1.4rem;
    }
    
    .examples-grid {
        grid-template-columns: 1fr;
    }
}

/* Улучшенная адаптация для планшетов */
@media (max-width: 1024px) and (min-width: 769px) {
    .benefits-grid,
    .services-grid {
        grid-template-columns: repeat(2, 1fr); /* Две колонки на планшетах */
    }
    
    .examples-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero h1 {
        font-size: 2.8rem;
    }
    
    .section-title {
        font-size: 2.5rem;
    }
}