/* Header */
header {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--light-text);
    padding: 20px 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}

.dark-mode header {
    background-color: rgba(24, 34, 45, 0.95);
    color: var(--dark-text);
}

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

.logo {
    font-size: 26px;
    font-weight: 800;
    text-decoration: none;
    color: var(--light-text);
    display: flex;
    align-items: center;
    letter-spacing: -0.03em;
}

.dark-mode .logo {
    color: var(--dark-text);
}

.logo img {
    margin-right: 10px;
}

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

nav ul li a {
    color: var(--light-text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 16px;
    transition: var(--transition);
    position: relative;
}

.dark-mode nav ul li a {
    color: var(--dark-text-secondary);
}

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

nav ul li a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background-color: var(--primary-color);
    transition: var(--transition);
}

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

.header-buttons {
    display: flex;
    align-items: center;
    gap: 15px;
}

.theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--light-bg-alt);
    color: var(--light-text);
    transition: var(--transition);
}

.dark-mode .theme-toggle {
    background-color: var(--dark-bg-alt);
    color: var(--dark-text);
}

.theme-toggle:hover {
    transform: rotate(15deg);
    background-color: var(--primary-light);
    color: var(--primary-color);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--light-text);
    font-size: 24px;
    cursor: pointer;
}

.dark-mode .mobile-menu-toggle {
    color: var(--dark-text);
}

/* Hero Section */
.hero {
    padding-top: 180px;
    padding-bottom: 120px;
    position: relative;
    overflow: hidden;
}

.hero-blur-1 {
    top: -10%;
    left: -10%;
}

.hero-blur-2 {
    bottom: 0;
    right: -10%;
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 60px;
}

.hero-text {
    flex: 1;
}

.hero-image {
    flex: 1;
    position: relative;
}

.hero-image img {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    transform: perspective(1000px) rotateY(-5deg) rotateX(5deg);
    transition: var(--transition);
}

.dark-mode .hero-image img {
    box-shadow: var(--shadow-dark);
}

.hero-image:hover img {
    transform: perspective(1000px) rotateY(-2deg) rotateX(2deg) translateZ(20px);
}

.hero h1 {
    font-size: 54px;
    margin-bottom: 20px;
    letter-spacing: -0.04em;
    line-height: 1.2;
}

.hero p {
    font-size: 20px;
    margin-bottom: 40px;
    max-width: 90%;
}

/* Services Section */
.services {
    background-color: var(--light-bg);
    position: relative;
}

.dark-mode .services {
    background-color: var(--dark-bg);
}

.services-blur {
    top: 50%;
    left: 30%;
    transform: translateY(-50%);
}

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

.service-card {
    background-color: var(--light-bg);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-light);
    transition: var(--transition);
    padding: 40px 30px;
    display: flex;
    flex-direction: column;
    height: 100%;
    position: relative;
    z-index: 1;
}

.dark-mode .service-card {
    background-color: var(--dark-bg-alt);
    box-shadow: var(--shadow-dark);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.dark-mode .service-card:hover {
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), #00a1ff);
    transition: var(--transition);
    z-index: -1;
}

.service-card:hover::before {
    height: 8px;
}

.service-icon {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
    border-radius: 16px;
    background-color: var(--primary-light);
    color: var(--primary-color);
    font-size: 32px;
    transition: var(--transition);
}

.service-card:hover .service-icon {
    transform: scale(1.1);
}

.service-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 16px;
}

.service-card h3 {
    font-size: 24px;
    margin-bottom: 15px;
}

.service-card p {
    margin-bottom: 25px;
    flex-grow: 1;
}

.service-btn {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

.service-btn:hover {
    gap: 12px;
}

.service-btn svg {
    transition: var(--transition);
}

.service-btn:hover svg {
    transform: translateX(5px);
}

/* Зелёная карточка для Node */
.service-card-green::before {
    background: linear-gradient(90deg, #10B981, #34D399);
}

.service-card-green .service-btn {
    color: #10B981;
}

.service-card-green .service-icon {
    background-color: rgba(16, 185, 129, 0.1);
}

/* Синяя карточка для Cortex */
.service-card-blue::before {
    background: linear-gradient(90deg, #0088cc, #00a1ff);
}

.service-card-blue .service-btn {
    color: #0088cc;
}

.service-card-blue .service-icon {
    background-color: rgba(0, 136, 204, 0.1);
}

/* Features Section */
.features {
    background-color: var(--light-bg-alt);
    position: relative;
}

.dark-mode .features {
    background-color: var(--dark-bg-alt);
}

.features-blur {
    top: 30%;
    right: -10%;
}

.features-content {
    display: flex;
    flex-direction: column;
    gap: 120px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 60px;
}

.feature-item:nth-child(even) {
    flex-direction: row-reverse;
}

.feature-image {
    flex: 1;
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-light);
    transition: var(--transition);
}

.dark-mode .feature-image {
    box-shadow: var(--shadow-dark);
}

.feature-image:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.dark-mode .feature-image:hover {
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.feature-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: var(--transition);
}

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

.feature-info {
    flex: 1;
}

.feature-info h3 {
    font-size: 32px;
    margin-bottom: 20px;
}

.feature-info p {
    margin-bottom: 25px;
    font-size: 17px;
}

.feature-list {
    margin-top: 25px;
    list-style: none;
}

.feature-list li {
    margin-bottom: 15px;
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.feature-list li svg {
    flex-shrink: 0;
    margin-top: 5px;
    color: var(--primary-color);
}

.feature-list li span {
    font-weight: 500;
}

/* CTA Section */
.cta {
    background: linear-gradient(135deg, #007ab8 0%, #0088cc 100%);
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-content {
    position: relative;
    z-index: 2;
}

.cta-decoration {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 1;
    opacity: 0.1;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.4'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.cta h2 {
    font-size: 42px;
    margin-bottom: 20px;
    color: white;
}

.cta p {
    font-size: 18px;
    max-width: 700px;
    margin: 0 auto 40px;
    color: rgba(255, 255, 255, 0.9);
}

/* Footer */
footer {
    background-color: var(--light-bg);
    color: var(--light-text);
    padding: 80px 0 30px;
}

.dark-mode footer {
    background-color: var(--dark-bg);
    color: var(--dark-text);
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 50px;
}

.footer-column h3 {
    font-size: 20px;
    margin-bottom: 25px;
    position: relative;
    padding-bottom: 10px;
    display: inline-block;
}

.footer-column h3::after {
    content: '';
    position: absolute;
    width: 40px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), #00a1ff);
    bottom: 0;
    left: 0;
}

.footer-about p {
    margin-bottom: 25px;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 15px;
}

.footer-links a {
    color: var(--light-text-secondary);
    text-decoration: none;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.dark-mode .footer-links a {
    color: var(--dark-text-secondary);
}

.footer-links a:hover {
    color: var(--primary-color);
    gap: 12px;
}

.footer-links a svg {
    transition: var(--transition);
    opacity: 0;
    width: 0;
}

.footer-links a:hover svg {
    opacity: 1;
    width: 16px;
}

.social-icons {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-icons a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--light-bg-alt);
    color: var(--light-text);
    text-decoration: none;
    transition: var(--transition);
}

.dark-mode .social-icons a {
    background-color: var(--dark-bg-alt);
    color: var(--dark-text);
}

.social-icons a:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-5px);
}

.footer-divider {
    height: 1px;
    background-color: var(--light-bg-alt);
    margin-bottom: 30px;
}

.dark-mode .footer-divider {
    background-color: var(--dark-bg-alt);
}

.legal-section {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.legal-links {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
}

.legal-links a {
    color: var(--light-text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition);
}

.dark-mode .legal-links a {
    color: var(--dark-text-secondary);
}

.legal-links a:hover {
    color: var(--primary-color);
}

.copyright {
    color: var(--light-text-secondary);
    font-size: 14px;
}

.dark-mode .copyright {
    color: var(--dark-text-secondary);
}