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

:root {
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --accent-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --dark-bg: #0f0f1e;
    --card-bg: #1a1a2e;
    --text-primary: #ffffff;
    --text-secondary: #b4b4c8;
    --border-color: rgba(255, 255, 255, 0.1);
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --purple: #8b5cf6;
    --blue: #3b82f6;
    --green: #10b981;
    --orange: #f97316;
}

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

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

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(15, 15, 30, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    padding: 12px 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo i {
    font-size: 28px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 25px;
    align-items: center;
}

.nav-menu a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    transition: color 0.3s;
}

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

.btn-primary-small {
    background: var(--primary-gradient);
    padding: 8px 20px;
    border-radius: 8px;
    color: white !important;
    font-weight: 600;
    font-size: 14px;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 24px;
    cursor: pointer;
}

/* Hero Section */
.hero {
    padding: 100px 0 50px;
    position: relative;
    overflow: hidden;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.hero-content {
    animation: fadeInUp 0.8s ease-out;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(139, 92, 246, 0.2);
    border: 1px solid rgba(139, 92, 246, 0.3);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 13px;
    color: #a78bfa;
    margin-bottom: 20px;
}

.hero-title {
    margin-bottom: 20px;
}

.title-main {
    display: block;
    font-size: 52px;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 12px;
    /* Максимальный контраст для читаемости */
    color: #ffffff;
    text-shadow: 
        0 0 20px rgba(139, 92, 246, 0.8),
        0 0 40px rgba(139, 92, 246, 0.4),
        2px 2px 4px rgba(0, 0, 0, 0.8);
    letter-spacing: -0.5px;
}

.title-sub {
    display: block;
    font-size: 28px;
    font-weight: 600;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.3;
}

.hero-description {
    font-size: 17px;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.hero-description strong {
    color: var(--text-primary);
    font-weight: 700;
}

.hero-benefits {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.hero-benefit-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

.hero-benefit-item i {
    color: var(--success-color);
    font-size: 16px;
}

.hero-cta {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    background: var(--primary-gradient);
    color: white;
    padding: 16px 32px;
    border-radius: 12px;
    font-weight: 700;
    font-size: 16px;
    text-decoration: none;
    transition: transform 0.3s, box-shadow 0.3s;
    box-shadow: 0 10px 30px rgba(139, 92, 246, 0.4);
    width: fit-content;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 40px rgba(139, 92, 246, 0.6);
}

.instant-response {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--success-color);
    font-weight: 600;
}

.instant-response i {
    animation: pulse 2s infinite;
}

/* Hero Visual */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.ai-avatar {
    position: relative;
    width: 280px;
    height: 280px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.avatar-circle {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    background: var(--primary-gradient);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 80px;
    color: white;
    box-shadow: 0 20px 60px rgba(139, 92, 246, 0.5);
    animation: float 3s ease-in-out infinite;
}

.sound-wave {
    position: absolute;
    bottom: 20px;
    display: flex;
    gap: 6px;
    align-items: flex-end;
}

.sound-wave span {
    width: 4px;
    background: var(--accent-gradient);
    border-radius: 2px;
    animation: wave 1s ease-in-out infinite;
}

.sound-wave span:nth-child(1) { height: 20px; animation-delay: 0s; }
.sound-wave span:nth-child(2) { height: 35px; animation-delay: 0.1s; }
.sound-wave span:nth-child(3) { height: 50px; animation-delay: 0.2s; }
.sound-wave span:nth-child(4) { height: 35px; animation-delay: 0.3s; }
.sound-wave span:nth-child(5) { height: 20px; animation-delay: 0.4s; }

/* Section Styles */
section {
    padding: 40px 0;
}

.section-title {
    text-align: center;
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 12px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    text-align: center;
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 30px;
}

/* Why Works Section */
.why-works {
    background: rgba(26, 26, 46, 0.5);
}

.why-works-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.why-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    transition: transform 0.3s, border-color 0.3s;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.why-card:hover {
    transform: translateY(-5px);
    border-color: rgba(139, 92, 246, 0.5);
}

.why-icon {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: 16px;
}

.why-icon.purple { background: rgba(139, 92, 246, 0.2); color: #a78bfa; }
.why-icon.blue { background: rgba(59, 130, 246, 0.2); color: #60a5fa; }
.why-icon.green { background: rgba(16, 185, 129, 0.2); color: #34d399; }
.why-icon.orange { background: rgba(249, 115, 22, 0.2); color: #fb923c; }

.why-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
    min-height: 50px;
    display: flex;
    align-items: center;
}

.why-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    flex-grow: 1;
}

/* Our Products Section */
.our-products {
    background: rgba(26, 26, 46, 0.5);
}

.products-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 30px;
}

.product-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 28px;
    transition: transform 0.3s, border-color 0.3s;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.product-card.highlighted {
    border-color: rgba(139, 92, 246, 0.5);
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
}

.product-card:hover {
    transform: translateY(-5px);
    border-color: rgba(139, 92, 246, 0.5);
}

.product-icon {
    width: 64px;
    height: 64px;
    border-radius: 12px;
    background: var(--primary-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: white;
    margin-bottom: 18px;
}

.product-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
    min-height: 48px;
    display: flex;
    align-items: center;
}

.product-desc {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.6;
    min-height: 42px;
}

.product-features {
    list-style: none;
    flex-grow: 1;
}

.product-features li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 13px;
    margin-bottom: 8px;
    color: var(--text-primary);
    line-height: 1.5;
}

.product-features i {
    color: var(--success-color);
    font-size: 14px;
    margin-top: 2px;
}

/* Process Section */
.process {
    background: rgba(26, 26, 46, 0.5);
}

.process-timeline {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 30px;
}

.process-step {
    position: relative;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    transition: transform 0.3s;
}

.process-step:hover {
    transform: translateY(-5px);
    border-color: rgba(139, 92, 246, 0.5);
}

.step-number {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: var(--primary-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    font-weight: 800;
    color: white;
    margin-bottom: 16px;
}

.step-content h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
}

.step-content p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 12px;
}

.step-time {
    display: inline-block;
    background: rgba(139, 92, 246, 0.2);
    color: #a78bfa;
    padding: 4px 12px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
}

/* Integrations Section */
.integrations-row {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
    margin-top: 30px;
}

.integration-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px 32px;
    min-width: 140px;
    transition: transform 0.3s, border-color 0.3s;
}

.integration-item:hover {
    transform: translateY(-5px);
    border-color: rgba(139, 92, 246, 0.5);
}

.integration-item i {
    font-size: 36px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.integration-item span {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

/* Stats Section */
.stats {
    background: rgba(26, 26, 46, 0.5);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 30px;
}

.stat-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 28px;
    text-align: center;
    transition: transform 0.3s;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    height: 100%;
    min-height: 200px;
}

.stat-card:hover {
    transform: translateY(-5px);
    border-color: rgba(139, 92, 246, 0.5);
}

.stat-number {
    display: inline-block;
    font-size: 48px;
    font-weight: 900;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.stat-suffix {
    display: inline-block;
    font-size: 28px;
    font-weight: 700;
    color: #a78bfa;
    margin-left: 4px;
}

.stat-label {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 12px 0 8px;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-desc {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
    min-height: 40px;
}

/* Cases Section */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 30px;
}

.case-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 28px;
    transition: transform 0.3s, border-color 0.3s;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.case-card:hover {
    transform: translateY(-5px);
    border-color: rgba(139, 92, 246, 0.5);
}

.case-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    background: var(--primary-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: white;
    margin-bottom: 16px;
}

.case-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 10px;
    min-height: 50px;
    display: flex;
    align-items: center;
}

.case-desc {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.6;
    min-height: 60px;
}

.case-results {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 20px;
    min-height: 140px;
}

.case-result {
    background: rgba(139, 92, 246, 0.1);
    border: 1px solid rgba(139, 92, 246, 0.2);
    border-radius: 12px;
    padding: 16px;
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100%;
}

.result-value {
    font-size: 28px;
    font-weight: 900;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
    margin-bottom: 8px;
    min-height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.result-label {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.3;
    min-height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.case-benefits {
    list-style: none;
    margin-top: auto;
}

.case-benefits li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 13px;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.case-benefits i {
    color: var(--success-color);
    font-size: 14px;
    margin-top: 2px;
}

/* FAQ Section */
.faq {
    background: rgba(26, 26, 46, 0.5);
}

.faq-list {
    max-width: 800px;
    margin: 30px auto 0;
}

.faq-item {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    margin-bottom: 16px;
    overflow: hidden;
    transition: border-color 0.3s;
}

.faq-item:hover {
    border-color: rgba(139, 92, 246, 0.5);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 24px;
    cursor: pointer;
    user-select: none;
}

.faq-question h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.faq-question i {
    color: var(--text-secondary);
    transition: transform 0.3s;
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

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

.faq-answer p {
    padding: 0 24px 20px;
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Final CTA */
.final-cta {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.2) 0%, rgba(118, 75, 162, 0.2) 100%);
    padding: 50px 0;
}

.cta-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-title {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 16px;
    line-height: 1.3;
}

.cta-description {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 24px;
}

.cta-description strong {
    color: var(--text-primary);
}

.cta-benefits {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.cta-benefit {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

.cta-benefit i {
    color: var(--success-color);
    font-size: 18px;
}

.btn-primary-large {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    background: var(--primary-gradient);
    color: white;
    padding: 18px 40px;
    border-radius: 12px;
    font-weight: 700;
    font-size: 18px;
    text-decoration: none;
    transition: transform 0.3s, box-shadow 0.3s;
    box-shadow: 0 15px 40px rgba(139, 92, 246, 0.5);
    margin-bottom: 16px;
}

.btn-primary-large:hover {
    transform: translateY(-2px);
    box-shadow: 0 20px 50px rgba(139, 92, 246, 0.7);
}

.instant-response-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(16, 185, 129, 0.2);
    border: 1px solid rgba(16, 185, 129, 0.3);
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 14px;
    color: #34d399;
    font-weight: 600;
}

.instant-response-badge i {
    animation: pulse 2s infinite;
}

/* Footer */
.footer {
    background: rgba(26, 26, 46, 0.8);
    border-top: 1px solid var(--border-color);
    padding: 30px 0 20px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    gap: 40px;
    margin-bottom: 20px;
}

.footer-brand p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 10px;
    max-width: 300px;
}

.footer-contact h4 {
    font-size: 16px;
    margin-bottom: 12px;
}

.footer-contact a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s;
}

.footer-contact a:hover {
    color: #a78bfa;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.footer-bottom p {
    font-size: 13px;
    color: var(--text-secondary);
}

/* Scroll to Top */
.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary-gradient);
    border: none;
    border-radius: 12px;
    color: white;
    font-size: 20px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s, transform 0.3s;
    box-shadow: 0 10px 30px rgba(139, 92, 246, 0.4);
    z-index: 999;
}

.scroll-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    transform: translateY(-5px);
}

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

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

@keyframes wave {
    0%, 100% { transform: scaleY(1); }
    50% { transform: scaleY(1.5); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Responsive Design */
@media (max-width: 968px) {
    .hero .container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .hero-visual {
        order: -1;
    }
    
    .ai-avatar {
        width: 200px;
        height: 200px;
    }
    
    .avatar-circle {
        width: 140px;
        height: 140px;
        font-size: 60px;
    }
    
    .title-main {
        font-size: 40px;
    }
    
    .title-sub {
        font-size: 22px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .why-works-grid,
    .process-timeline {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    
    .products-row,
    .cases-grid,
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 24px;
    }
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }
    
    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(26, 26, 46, 0.98);
        flex-direction: column;
        padding: 20px;
        gap: 15px;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease-out;
        border-bottom: 1px solid var(--border-color);
    }
    
    .nav-menu.active {
        max-height: 400px;
    }
    
    .hero {
        padding: 80px 0 40px;
    }
    
    .title-main {
        font-size: 32px;
    }
    
    .title-sub {
        font-size: 18px;
    }
    
    .hero-benefits {
        flex-direction: column;
        gap: 12px;
    }
    
    .btn-primary,
    .btn-primary-large {
        width: 100%;
    }
    
    .products-row,
    .cases-grid,
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .why-works-grid,
    .process-timeline {
        grid-template-columns: 1fr;
    }
    
    .cta-benefits {
        flex-direction: column;
        gap: 16px;
    }
    
    .integrations-row {
        gap: 12px;
    }
    
    .integration-item {
        min-width: 120px;
        padding: 20px 24px;
    }
    
    .case-results {
        grid-template-columns: 1fr;
    }
    
    .cta-title {
        font-size: 24px;
    }
    
    .scroll-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}