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

:root {
    /* Colors */
    --primary-color: #00D4AA;
    --primary-dark: #00B894;
    --secondary-color: #6C5CE7;
    --accent-color: #FD79A8;
    --text-primary: #2D3436;
    --text-secondary: #636E72;
    --text-light: #B2BEC3;
    --background: #FFFFFF;
    --background-light: #F8F9FA;
    --background-dark: #2D3436;
    --border-color: #E9ECEF;
    --success-color: #00B894;
    --warning-color: #FDCB6E;
    --error-color: #E17055;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #00D4AA 0%, #00B894 100%);
    --gradient-secondary: linear-gradient(135deg, #6C5CE7 0%, #A29BFE 100%);
    --gradient-accent: linear-gradient(135deg, #FD79A8 0%, #FDCB6E 100%);
    --gradient-hero: linear-gradient(135deg, #00D4AA 0%, #6C5CE7 50%, #FD79A8 100%);
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.25);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 50%;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background);
    overflow-x: hidden;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

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

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left var(--transition-slow);
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: var(--background);
    color: var(--text-primary);
    border: 2px solid var(--primary-color);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-icon {
    width: 20px;
    height: 20px;
    stroke-width: 2;
}

/* Mobile Navigation */
.mobile-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

/* Desktop Navigation */
@media (min-width: 768px) {
    .mobile-nav {
        position: static;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(15px);
        border-bottom: 1px solid rgba(0, 212, 170, 0.2);
    }
    
    .nav-container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 2rem;
    }
    
    .nav-menu {
        position: static;
        transform: none;
        background: none;
        backdrop-filter: none;
        border: none;
        box-shadow: none;
        flex-direction: row;
        justify-content: center;
        align-items: center;
        gap: 2rem;
        padding: 1rem 0;
        height: auto;
        width: auto;
    }
    
    .nav-link {
        padding: 0.5rem 1rem;
        border-radius: 8px;
        transition: all 0.3s ease;
        font-weight: 500;
    }
    
    .nav-link:hover {
        background: rgba(0, 212, 170, 0.1);
        color: var(--primary-color);
    }
    
    .nav-toggle {
        display: none;
    }
    
    .chat-link {
        background: var(--primary-color);
        color: white !important;
        padding: 0.75rem 1.5rem;
        border-radius: 25px;
        font-weight: 600;
        display: flex;
        align-items: center;
        gap: 0.5rem;
        transition: all 0.3s ease;
    }
    
    .chat-link:hover {
        background: var(--primary-dark);
        transform: translateY(-2px);
        box-shadow: 0 4px 12px rgba(0, 212, 170, 0.3);
    }
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm);
    max-width: 1200px;
    margin: 0 auto;
}

.brand-text {
    font-size: var(--font-size-xl);
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-toggle {
    display: flex;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.hamburger-line {
    width: 24px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-normal);
}

.nav-toggle.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.nav-toggle.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

.nav-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.nav-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md) var(--spacing-sm);
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    border-bottom: 1px solid var(--border-color);
    transition: all var(--transition-fast);
}

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

.nav-link.chat-link {
    background: var(--gradient-primary);
    color: white;
    border-bottom: none;
}

.nav-link.chat-link:hover {
    background: var(--primary-dark);
}

.chat-icon {
    width: 20px;
    height: 20px;
    stroke-width: 2;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2xl) 0;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -1;
}

.hero-image-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('фото/1блок.png');
    background-size: cover;
    background-position: center right;
    background-repeat: no-repeat;
    opacity: 0.3;
    z-index: 1;
}

.hero-gradient {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-hero);
    opacity: 0.1;
    z-index: 2;
}

.hero-bubbles {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 3;
}

.bubble {
    position: absolute;
    border-radius: var(--radius-full);
    background: rgba(0, 212, 170, 0.1);
    animation: float 6s ease-in-out infinite;
}

.bubble-1 {
    width: 80px;
    height: 80px;
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.bubble-2 {
    width: 120px;
    height: 120px;
    top: 60%;
    right: 15%;
    animation-delay: 2s;
}

.bubble-3 {
    width: 60px;
    height: 60px;
    top: 30%;
    right: 30%;
    animation-delay: 4s;
}

.bubble-4 {
    width: 100px;
    height: 100px;
    bottom: 20%;
    left: 20%;
    animation-delay: 1s;
}

.bubble-5 {
    width: 140px;
    height: 140px;
    top: 10%;
    right: 5%;
    animation-delay: 3s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

.hero-content {
    flex: 1;
    max-width: 600px;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(255, 255, 255, 0.9);
    border-radius: var(--radius-xl);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--success-color);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

.badge-icon {
    width: 16px;
    height: 16px;
    stroke-width: 2;
}

.hero-title {
    margin-bottom: var(--spacing-lg);
}

.title-highlight {
    display: block;
    font-size: var(--font-size-5xl);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-xs);
}

.title-main {
    display: block;
    font-size: var(--font-size-4xl);
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.title-sub {
    display: block;
    font-size: var(--font-size-2xl);
    color: var(--text-secondary);
    font-weight: 400;
}

.hero-description {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xl);
    color: var(--text-secondary);
}

.hero-stats {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: var(--font-size-3xl);
    font-weight: 800;
    color: var(--primary-color);
    line-height: 1;
}

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

.hero-actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
}

/* Section Styles */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-title {
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

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

/* Benefits Section */
.benefits {
    padding: var(--spacing-2xl) 0;
    background: var(--background-light);
}

.benefits-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

.benefit-card {
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.benefit-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
}

.benefit-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.benefit-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--spacing-md);
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.benefit-icon svg {
    width: 32px;
    height: 32px;
    stroke-width: 2;
}

.benefit-title {
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.benefit-description {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Products Section */
.products {
    padding: var(--spacing-2xl) 0;
}

.products-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.product-card {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: all var(--transition-normal);
    position: relative;
}

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

.product-card.featured {
    border: 2px solid var(--primary-color);
    transform: scale(1.05);
}

.product-badge {
    position: absolute;
    top: var(--spacing-sm);
    left: var(--spacing-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--gradient-primary);
    color: white;
    font-size: var(--font-size-sm);
    font-weight: 600;
    border-radius: var(--radius-sm);
    z-index: 1;
}

.product-image {
    height: 200px;
    overflow: hidden;
}

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

.product-card:hover .product-image img {
    transform: scale(1.1);
}

.product-info {
    padding: var(--spacing-lg);
}

.product-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.product-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.product-source {
    font-size: var(--font-size-sm);
    color: var(--primary-color);
    font-weight: 600;
}

.price-info {
    text-align: center;
}

.price-badge {
    display: inline-block;
    padding: var(--spacing-md) var(--spacing-xl);
    background: var(--gradient-primary);
    color: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.price-text {
    display: block;
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.price-note {
    font-size: var(--font-size-sm);
    opacity: 0.9;
}

/* How to Use Section */
.how-to-use {
    padding: var(--spacing-2xl) 0;
    background: var(--background-light);
}

.steps-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    align-items: center;
}

.step-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    max-width: 200px;
}

.step-number {
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    color: white;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.step-image {
    width: 120px;
    height: 120px;
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: var(--spacing-sm);
    box-shadow: var(--shadow-md);
}

.step-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.step-text {
    font-weight: 600;
    color: var(--text-primary);
}

.step-arrow {
    display: none;
    color: var(--primary-color);
}

.step-arrow svg {
    width: 24px;
    height: 24px;
    stroke-width: 2;
}

/* Solutions Section */
.solutions {
    padding: var(--spacing-2xl) 0;
}

.solutions-tabs {
    max-width: 800px;
    margin: 0 auto;
}

.tab-buttons {
    display: flex;
    background: var(--background-light);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xs);
    margin-bottom: var(--spacing-xl);
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.tab-buttons::-webkit-scrollbar {
    display: none;
}

.tab-btn {
    flex: 1;
    min-width: 0;
    padding: var(--spacing-sm) var(--spacing-xs);
    background: none;
    border: none;
    border-radius: var(--radius-md);
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-normal);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.tab-btn.active {
    background: white;
    color: var(--primary-color);
    box-shadow: var(--shadow-sm);
}

/* Специальные стили для последней кнопки */
.tab-btn:last-child {
    font-size: 12px;
    padding: var(--spacing-sm) var(--spacing-xs);
    flex: 0 1 auto;
    min-width: 0;
}

/* Дополнительные стили для планшетов */
@media (max-width: 1024px) and (min-width: 768px) {
    .tab-btn {
        font-size: 12px;
        padding: var(--spacing-sm) var(--spacing-xs);
    }
    
    .tab-btn:last-child {
        font-size: 11px;
        padding: var(--spacing-sm) 8px;
    }
}

/* Стили для средних мобильных устройств */
@media (max-width: 600px) and (min-width: 481px) {
    .tab-btn {
        font-size: 11px;
        padding: 6px 5px;
    }
    
    .tab-btn:last-child {
        font-size: 10px;
        padding: 6px 4px;
    }
    
    /* Карточки маркетплейсов для средних мобильных */
    .marketplaces-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-sm);
        padding: 0 var(--spacing-xs);
    }
    
    .marketplace-card {
        padding: var(--spacing-md);
    }
    
    .marketplace-icon {
        width: 38px;
        height: 38px;
    }
    
    .marketplace-title {
        font-size: 13px;
    }
}

.tab-content {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.tab-pane {
    display: none;
    padding: var(--spacing-xl);
}

.tab-pane.active {
    display: block;
}

.solution-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.solution-image {
    text-align: center;
}

.solution-image img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
}

.solution-title {
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.solution-list {
    list-style: none;
    margin-bottom: var(--spacing-lg);
}

.solution-list li {
    position: relative;
    padding-left: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
}

.solution-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: 700;
}

.solution-cta {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--primary-color);
    text-align: center;
    padding: var(--spacing-md);
    background: var(--background-light);
    border-radius: var(--radius-md);
}

/* Reviews Section */
.reviews {
    padding: var(--spacing-2xl) 0;
    background: var(--background-light);
}

.reviews-carousel {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.reviews-container {
    display: flex;
    overflow: hidden;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.review-item {
    flex: 0 0 100%;
    background: white;
    padding: var(--spacing-xl);
    text-align: center;
}

.review-image {
    width: 100%;
    max-width: 400px;
    height: auto;
    border-radius: var(--radius-md);
    margin: 0 auto;
    box-shadow: var(--shadow-sm);
}

.carousel-controls {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.carousel-btn {
    width: 48px;
    height: 48px;
    background: white;
    border: 2px solid var(--primary-color);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    color: var(--primary-color);
}

.carousel-btn:hover {
    background: var(--primary-color);
    color: white;
    transform: scale(1.1);
}

.carousel-btn svg {
    width: 20px;
    height: 20px;
    stroke-width: 2;
}

/* Marketplaces Section */
.marketplaces {
    padding: var(--spacing-2xl) 0;
}

.marketplaces-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

.marketplace-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-xl);
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-decoration: none;
    color: var(--text-primary);
    transition: all var(--transition-normal);
    border: 2px solid transparent;
}

.marketplace-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.marketplace-icon {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-sm);
}

.marketplace-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.marketplace-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    text-align: center;
}

/* Video Section */
.video {
    padding: var(--spacing-2xl) 0;
    background: var(--background-light);
}

.video-container {
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.video-player {
    width: 100%;
    height: auto;
    display: block;
}

.video-info {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.video-description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Chat Section */
.chat {
    padding: var(--spacing-2xl) 0;
}

.chat-container {
    max-width: 800px;
    margin: 0 auto;
}

.chat-window {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    margin-bottom: var(--spacing-xl);
}

.chat-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--gradient-primary);
    color: white;
}

.chat-avatar {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
}

.chat-avatar svg {
    width: 20px;
    height: 20px;
    stroke-width: 2;
}

.chat-info {
    flex: 1;
}

.chat-name {
    display: block;
    font-weight: 600;
    font-size: var(--font-size-lg);
}

.chat-status {
    font-size: var(--font-size-sm);
    opacity: 0.9;
}

.chat-status.online::before {
    content: '●';
    color: #00B894;
    margin-right: var(--spacing-xs);
}

.chat-messages {
    height: 400px;
    overflow-y: auto;
    padding: var(--spacing-md);
    background: #f0f0f0;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.message {
    display: flex;
    margin-bottom: var(--spacing-sm);
    max-width: 80%;
}

.user-message {
    align-self: flex-end;
    justify-content: flex-end;
}

.assistant-message {
    align-self: flex-start;
    justify-content: flex-start;
}

.message-avatar {
    width: 32px;
    height: 32px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
}

.message-avatar svg {
    width: 16px;
    height: 16px;
    stroke-width: 2;
}

.message-content {
    background: white;
    padding: 12px 16px;
    border-radius: 18px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    position: relative;
    word-wrap: break-word;
}

.message-content p {
    margin: 0;
    color: var(--text-primary);
    font-size: 14px;
    line-height: 1.4;
}

/* SMS стиль для сообщений пользователя */
.user-message .message-content {
    background: #007AFF;
    color: white;
    border-bottom-right-radius: 4px;
}

.user-message .message-content p {
    color: white;
}

.user-message .message-avatar {
    background: #007AFF;
    order: 2;
    margin-left: 8px;
}

/* SMS стиль для сообщений ассистента */
.assistant-message .message-content {
    background: white;
    color: var(--text-primary);
    border-bottom-left-radius: 4px;
    border: 1px solid #e0e0e0;
}

.assistant-message .message-avatar {
    background: #34C759;
    order: 1;
    margin-right: 8px;
}

/* Мобильная оптимизация для SMS стиля */
@media (max-width: 768px) {
    .chat-messages {
        height: 350px;
        padding: 12px;
    }
    
    .message {
        max-width: 85%;
    }
    
    .message-content {
        padding: 10px 14px;
        font-size: 14px;
    }
    
    .user-message .message-content {
        background: #007AFF;
    }
    
    .assistant-message .message-content {
        background: white;
        border: 1px solid #e0e0e0;
    }
}

.chat-form {
    padding: var(--spacing-md);
    background: white;
    border-top: 1px solid var(--border-color);
}

.chat-input {
    display: flex;
    gap: var(--spacing-sm);
}

.chat-input-field {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    transition: border-color var(--transition-fast);
}

.chat-input-field:focus {
    outline: none;
    border-color: var(--primary-color);
}

.chat-send-btn {
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--radius-md);
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
}

.chat-send-btn:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

.chat-send-btn svg {
    width: 20px;
    height: 20px;
    stroke-width: 2;
}

.chat-features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: white;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.feature-icon {
    width: 24px;
    height: 24px;
    color: var(--success-color);
    stroke-width: 2;
    flex-shrink: 0;
}

/* Footer */
.footer {
    background: var(--background-dark);
    color: white;
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-title {
    color: white;
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-lg);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--text-light);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-link:hover {
    color: var(--primary-color);
}

.footer-icon {
    width: 16px;
    height: 16px;
    stroke-width: 2;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-light);
}

/* Floating Chat Button */
.floating-chat-btn {
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--radius-full);
    color: white;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    transition: all var(--transition-normal);
}

.floating-chat-btn:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-xl);
}

.floating-chat-btn svg {
    width: 24px;
    height: 24px;
    stroke-width: 2;
}

.chat-notification {
    position: absolute;
    top: -4px;
    right: -4px;
    width: 20px;
    height: 20px;
    background: var(--accent-color);
    border-radius: var(--radius-full);
    display: none;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xs);
    font-weight: 700;
    color: white;
}

.chat-notification.show {
    display: flex;
}

/* Responsive Design */
@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-lg);
    }
    
    .hero {
        flex-direction: row;
        gap: var(--spacing-2xl);
    }
    
    .hero-actions {
        flex-direction: row;
    }
    
    .benefits-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .products-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .steps-container {
        flex-direction: row;
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .step-arrow {
        display: block;
    }
    
    .solution-content {
        flex-direction: row;
        align-items: center;
    }
    
    .solution-image {
        flex: 1;
    }
    
    .solution-info {
        flex: 1;
    }
    
    .tab-buttons {
        overflow-x: visible;
    }
    
    .tab-btn {
        flex: 1;
        min-width: auto;
    }
    
    .marketplaces-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .footer-content {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .chat-features {
        flex-direction: row;
    }
}

/* Mobile specific styles for tabs */
@media (max-width: 767px) {
    .tab-buttons {
        padding: var(--spacing-xs);
        gap: 4px;
        overflow-x: auto;
        scrollbar-width: none;
        -ms-overflow-style: none;
        display: flex;
        flex-wrap: nowrap;
        position: relative;
    }
    
    /* Индикатор прокрутки для мобильных */
    .tab-buttons::after {
        content: '→';
        position: absolute;
        right: 5px;
        top: 50%;
        transform: translateY(-50%);
        color: var(--primary-color);
        font-size: 16px;
        pointer-events: none;
        opacity: 0.7;
    }
    
    .tab-buttons::-webkit-scrollbar {
        display: none;
    }
    
    .tab-btn {
        font-size: 12px;
        padding: 8px 6px;
        min-width: max-content;
        white-space: nowrap;
        flex-shrink: 0;
    }
    
    .tab-btn:last-child {
        font-size: 10px;
        padding: 8px 4px;
        min-width: max-content;
    }
    
    /* Специальные стили для очень маленьких экранов */
    @media (max-width: 480px) {
        .tab-btn {
            font-size: 11px;
            padding: 6px 4px;
        }
        
        .tab-btn:last-child {
            font-size: 9px;
            padding: 6px 3px;
        }
        
        /* Карточки маркетплейсов в одну колонку на очень маленьких экранах */
        .marketplaces-grid {
            grid-template-columns: 1fr;
            gap: var(--spacing-sm);
        }
        
        .marketplace-card {
            padding: var(--spacing-md);
        }
        
        .marketplace-icon {
            width: 35px;
            height: 35px;
        }
        
        .marketplace-title {
            font-size: 13px;
        }
    }
    
    .solution-content {
        flex-direction: column;
        text-align: center;
    }
    
    .solution-image {
        margin-bottom: var(--spacing-lg);
    }
    
    /* Исправление для карточек маркетплейсов на мобильных */
    .marketplaces-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
        padding: 0 var(--spacing-sm);
    }
    
    .marketplace-card {
        padding: var(--spacing-lg);
        min-height: auto;
    }
    
    .marketplace-icon {
        width: 40px;
        height: 40px;
        margin-bottom: var(--spacing-sm);
    }
    
    .marketplace-title {
        font-size: 14px;
        text-align: center;
    }
    
    .hero-image-bg {
        background-position: center center;
        opacity: 0.2;
    }
}

@media (min-width: 1024px) {
    .benefits-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .hero-title {
        font-size: var(--font-size-5xl);
    }
    
    .title-highlight {
        font-size: 4rem;
    }
    
    .title-main {
        font-size: var(--font-size-5xl);
    }
}

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

.animate-in {
    animation: fadeInUp 0.6s ease forwards;
}

/* Loading States */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--primary-color);
    border-top: 2px solid transparent;
    border-radius: var(--radius-full);
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus styles */
button:focus,
input:focus,
textarea:focus,
a:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* High contrast mode */
@media (prefers-contrast: high) {
    :root {
        --text-primary: #000000;
        --text-secondary: #333333;
        --border-color: #000000;
    }
}

/* Desktop Navigation */
@media (min-width: 768px) {
    .mobile-nav {
        display: flex !important;
        position: static;
        background: white;
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        padding: 15px 0;
    }
    
    .mobile-nav .nav-container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 20px;
        display: flex;
        justify-content: space-between;
        align-items: center;
        width: 100%;
    }
    
    .mobile-nav .nav-brand {
        flex: 0 0 auto;
    }
    
    .mobile-nav .nav-toggle {
        display: none;
    }
    
    .mobile-nav .nav-menu {
        position: static;
        flex-direction: row;
        background: none;
        box-shadow: none;
        padding: 0;
        gap: 30px;
        align-items: center;
        display: flex;
        transform: none;
        opacity: 1;
        visibility: visible;
    }
    
    .mobile-nav .nav-link {
        padding: 10px 0;
        font-size: 16px;
        color: var(--text-primary);
        border-bottom: 2px solid transparent;
        transition: all 0.3s ease;
    }
    
    .mobile-nav .nav-link:hover {
        color: var(--primary-color);
        border-bottom-color: var(--primary-color);
    }
    
    .mobile-nav .chat-link {
        background: var(--primary-color);
        color: white;
        padding: 12px 20px;
        border-radius: 25px;
        margin-left: 20px;
        border-bottom: none;
    }
    
    .mobile-nav .chat-link:hover {
        background: var(--primary-dark);
        border-bottom-color: transparent;
    }
}