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

:root {
    /* Фиолетово-синяя цветовая схема как в оригинале */
    --primary-purple: #8B5CF6;
    --primary-blue: #6366F1;
    --dark-bg: #0A0E27;
    --dark-bg-2: #1A1F3A;
    --card-bg: #2A2F4F;
    --card-bg-light: #3A3F5F;
    --white: #FFFFFF;
    --gray-light: #E5E7EB;
    --gray-text: #9CA3AF;
    --accent-gradient: linear-gradient(135deg, #8B5CF6 0%, #6366F1 100%);
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.4);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
    line-height: 1.6;
    color: var(--white);
    background-color: var(--dark-bg);
    overflow-x: hidden;
    width: 100%;
    max-width: 100vw;
}

html {
    overflow-x: hidden;
    max-width: 100vw;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
}

@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }
}

/* Header */
.header {
    background: var(--dark-bg);
    padding: 1.5rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

    .header-top {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 2rem;
    }
    
    @media (max-width: 640px) {
        .header-top {
            gap: 0.5rem;
            flex-wrap: nowrap;
        }
    }

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.2rem;
    color: var(--white);
    border-radius: 8px;
}

.logo-img {
    height: 50px;
    width: auto;
    object-fit: contain;
    display: block;
    max-width: 200px;
}

.footer .logo-img {
    height: 60px;
    max-width: 220px;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--white);
}

.nav {
    display: flex;
    gap: 2.5rem;
    flex: 1;
    justify-content: center;
}

.nav a {
    color: var(--white);
    text-decoration: none;
    font-size: 1rem;
    transition: opacity 0.3s;
    white-space: nowrap;
}

.nav a:hover {
    opacity: 0.7;
}

.header-contacts {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.header-phone {
    text-align: right;
    color: var(--white);
    font-size: 0.95rem;
}

.presentation-link {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.6rem 1.2rem;
    background: #8B0000;
    color: var(--white);
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s;
    box-shadow: 0 2px 8px rgba(139, 0, 0, 0.3);
    position: relative;
    overflow: hidden;
}

.presentation-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.1);
    opacity: 0;
    transition: opacity 0.3s;
}

.presentation-link:hover::before {
    opacity: 1;
}

.presentation-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(139, 0, 0, 0.4);
}

.presentation-icon {
    width: 20px;
    height: 20px;
    stroke: var(--white);
    filter: drop-shadow(0 0 2px rgba(255, 255, 255, 0.5));
    flex-shrink: 0;
}

.presentation-link span {
    position: relative;
    z-index: 1;
    text-shadow: 0 0 4px rgba(255, 255, 255, 0.3);
}

.btn-calculate {
    padding: 0.7rem 1.8rem;
    background: var(--white);
    color: var(--dark-bg);
    border: none;
    border-radius: 12px;
    cursor: pointer;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s;
    white-space: nowrap;
}

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


.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--white);
    font-size: 2rem;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
}

/* Mobile Menu Styles */
@media (max-width: 968px) {
    .nav {
        position: fixed;
        top: 0;
        left: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background: var(--dark-bg-2);
        flex-direction: column;
        padding: 5rem 2rem 2rem;
        gap: 1.5rem;
        transition: left 0.3s ease;
        z-index: 1000;
        box-shadow: 2px 0 20px rgba(0, 0, 0, 0.5);
    }
    
    .nav.active {
        left: 0;
    }
    
    .nav a {
        font-size: 1.2rem;
        padding: 1rem;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .mobile-menu-toggle {
        display: block;
        z-index: 1001;
        position: relative;
    }
    
    /* Overlay when menu is open */
    .nav.active::before {
        content: '';
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.7);
        z-index: 998;
    }
    
    /* Close button for mobile menu */
    .nav::after {
        content: '✕';
        position: absolute;
        top: 1rem;
        right: 1rem;
        font-size: 2rem;
        color: var(--white);
        cursor: pointer;
        display: none;
        z-index: 1002;
    }
    
    .nav.active::after {
        display: block;
    }
}

/* Hero Section */
.hero {
    min-height: 90vh;
    display: flex;
    align-items: center;
    padding: 4rem 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(139, 92, 246, 0.2) 0%, transparent 70%);
    pointer-events: none;
}

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

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 2rem;
    background: linear-gradient(135deg, #FFFFFF 0%, #E0E7FF 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.3rem;
    line-height: 1.8;
    margin-bottom: 3rem;
    max-width: 800px;
    opacity: 0.9;
}

/* Hero Features Visual Container */
.hero-features-visual {
    position: relative;
    width: 100%;
    min-height: 450px;
    margin: 3rem 0;
}

/* LED Film Graphic */
.led-film-graphic {
    position: relative;
    width: 100%;
    height: 500px;
    margin: 0;
    display: flex;
    gap: 2rem;
    justify-content: center;
    align-items: center;
}

.film-strip {
    position: relative;
    width: 500px;
    height: 350px;
    border-radius: 20px;
    opacity: 1;
    border: 1px solid rgba(139, 92, 246, 0.3);
    overflow: hidden;
    flex-shrink: 0;
    touch-action: none;
    -webkit-user-drag: none;
    user-drag: none;
}

.film-strip video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
    border-radius: 20px;
    display: block;
    touch-action: none;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    user-select: none;
    pointer-events: none;
}

.film-strip-1 {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.4) 0%, rgba(99, 102, 241, 0.3) 100%);
}

.film-strip-2 {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.5) 0%, rgba(99, 102, 241, 0.4) 100%);
}

.film-strip-3 {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.4) 0%, rgba(99, 102, 241, 0.3) 100%);
}

.led-grid {
    width: 100%;
    height: 100%;
    background-image: 
        repeating-linear-gradient(0deg, transparent, transparent 8px, rgba(255, 255, 255, 0.15) 8px, rgba(255, 255, 255, 0.15) 9px),
        repeating-linear-gradient(90deg, transparent, transparent 8px, rgba(255, 255, 255, 0.15) 8px, rgba(255, 255, 255, 0.15) 9px);
    border-radius: 20px;
    position: relative;
    z-index: 1;
    pointer-events: none;
}



@media (max-width: 1200px) {
    .led-film-graphic {
        height: 400px;
        gap: 1.5rem;
    }
    .film-strip {
        width: 400px;
        height: 280px;
    }
}

@media (max-width: 768px) {
    .hero-features-visual {
        min-height: auto;
        overflow-x: hidden;
        overflow-y: visible;
        position: relative;
    }
    .led-film-graphic {
        height: auto;
        flex-direction: column;
        gap: 1rem;
        width: 100%;
        max-width: 100%;
        overflow-x: hidden;
        overflow-y: visible;
        position: relative;
        transform: none !important;
        padding: 0;
    }
    .film-strip {
        width: 100%;
        max-width: 100%;
        height: 200px;
        transform: none !important;
        margin: 0 auto;
        position: relative;
        animation: none !important;
        visibility: visible !important;
        opacity: 1 !important;
        overflow: visible;
    }
    .film-strip video {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        object-fit: cover;
    }
}

/* Hero CTA */
.hero-cta {
    display: flex;
    gap: 3rem;
    align-items: center;
    justify-content: center;
    margin-top: 2rem;
}

.btn-large {
    padding: 1.2rem 3rem;
    font-size: 1.1rem;
    font-weight: 600;
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--white);
    color: var(--white);
    border-radius: 16px;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-outline:hover {
    background: var(--white);
    color: var(--dark-bg);
}


/* Technology Section */
.technology {
    padding: 6rem 0;
    background: var(--dark-bg-2);
}

.tech-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
}

.tech-main-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 2rem;
    line-height: 1.3;
}

.tech-subtitle-block {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.tech-subtitle-large {
    font-size: 1.3rem;
    line-height: 1.8;
    opacity: 0.9;
}

.tech-subtitle-small {
    font-size: 1.1rem;
    line-height: 1.8;
    opacity: 0.8;
}

.tech-features {
    display: grid;
    gap: 2rem;
}

.tech-feature-card {
    background: var(--card-bg);
    border-radius: 20px;
    overflow: hidden;
    transition: transform 0.3s;
}

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

.feature-image-wrapper {
    position: relative;
    height: 250px;
    background: var(--card-bg-light);
    touch-action: none;
    -webkit-user-drag: none;
    user-drag: none;
}

.feature-img {
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    position: relative;
    overflow: hidden;
}

.feature-img video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
    display: block;
    touch-action: none;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    user-select: none;
    pointer-events: none;
}

.feature-img-1 {
    background: 
        linear-gradient(135deg, rgba(139, 92, 246, 0.4) 0%, rgba(99, 102, 241, 0.3) 100%);
}

.feature-img-2 {
    background: 
        linear-gradient(135deg, rgba(59, 130, 246, 0.4) 0%, rgba(139, 92, 246, 0.3) 100%);
}

.feature-img-3 {
    background: 
        linear-gradient(135deg, rgba(16, 185, 129, 0.4) 0%, rgba(59, 130, 246, 0.3) 100%);
}

.question-btn {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.5);
    color: var(--white);
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.3s;
}

.question-btn:hover {
    background: rgba(0, 0, 0, 0.8);
    transform: scale(1.1);
}

.tech-feature-card h3 {
    padding: 1.5rem;
    font-size: 1.3rem;
    font-weight: 600;
}

/* Principle Section */
.principle {
    padding: 6rem 0;
}

.section-heading {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.section-link {
    font-size: 1.2rem;
    color: var(--primary-purple);
    cursor: pointer;
    margin-bottom: 3rem;
    display: inline-block;
}

.principle-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 3rem;
}

.principle-card {
    position: relative;
    height: 300px;
    background: var(--card-bg);
    border-radius: 20px;
    overflow: hidden;
    transition: transform 0.3s;
    touch-action: none;
    -webkit-user-drag: none;
    user-drag: none;
}

.principle-card:hover {
    transform: scale(1.05);
}

.principle-img {
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    position: relative;
    overflow: hidden;
}

.principle-img video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
    display: block;
    touch-action: none;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    user-select: none;
    pointer-events: none;
}

.btn-center {
    display: block;
    margin: 0 auto;
    padding: 1.2rem 3rem;
    background: var(--accent-gradient);
    color: var(--white);
    border: none;
    border-radius: 16px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-center:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

/* Exploded View */
.exploded-view {
    padding: 6rem 0;
    background: var(--dark-bg-2);
    position: relative;
    overflow: hidden;
}

.exploded-diagram {
    position: relative;
    min-height: 700px;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Центральные перекрывающиеся слои */
.center-layers {
    position: relative;
    width: 600px;
    height: 400px;
    margin: 0 auto;
}

.layer-visual {
    position: absolute;
    border-radius: 20px;
    background: 
        linear-gradient(135deg, rgba(139, 92, 246, 0.3) 0%, rgba(99, 102, 241, 0.2) 100%);
    background-size: cover;
    background-position: center;
    border: 2px solid rgba(139, 92, 246, 0.4);
    backdrop-filter: blur(10px);
    box-shadow: 0 10px 40px rgba(139, 92, 246, 0.3);
    overflow: hidden;
    touch-action: none;
    -webkit-user-drag: none;
    user-drag: none;
}

.layer-visual video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
    border-radius: 20px;
    display: block;
    touch-action: none;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    user-select: none;
    pointer-events: none;
}

.layer-visual::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        repeating-linear-gradient(0deg, transparent, transparent 19px, rgba(255, 255, 255, 0.08) 19px, rgba(255, 255, 255, 0.08) 20px),
        repeating-linear-gradient(90deg, transparent, transparent 19px, rgba(255, 255, 255, 0.08) 19px, rgba(255, 255, 255, 0.08) 20px);
    border-radius: 20px;
    pointer-events: none;
}

.layer-bottom {
    width: 550px;
    height: 350px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 1;
}

/* Информационные блоки вокруг */
.layer-info {
    position: absolute;
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
    max-width: 300px;
    z-index: 10;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.layer-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    min-width: 60px;
    background: var(--accent-gradient);
    border-radius: 50%;
    font-size: 1.8rem;
    font-weight: bold;
    box-shadow: 0 4px 20px rgba(139, 92, 246, 0.5);
}

.layer-text h3 {
    font-size: 1.4rem;
    margin-bottom: 0.8rem;
    font-weight: 700;
    word-wrap: break-word;
    overflow-wrap: break-word;
    white-space: normal;
}

.layer-text p {
    opacity: 0.9;
    line-height: 1.6;
    font-size: 1rem;
    word-wrap: break-word;
    overflow-wrap: break-word;
    white-space: normal;
}

/* Позиционирование компонентов */
.layer-info-01 {
    top: 15%;
    left: 2%;
}

.layer-info-02 {
    top: 15%;
    right: 2%;
}

.layer-info-03 {
    top: 70%;
    left: 2%;
}

.layer-info-04 {
    top: 70%;
    right: 2%;
}

/* Адаптивность */
@media (max-width: 1200px) {
    .exploded-diagram {
        min-height: 600px;
    }
    
    .center-layers {
        width: 500px;
        height: 350px;
    }
    
    .layer-bottom {
        width: 450px;
        height: 300px;
    }
    
    .layer-middle {
        width: 380px;
        height: 250px;
    }
    
    .layer-top {
        width: 320px;
        height: 220px;
    }
    
    .layer-info {
        max-width: 250px;
    }
}

@media (max-width: 968px) {
    .exploded-view {
        padding: 3rem 0;
        overflow-x: hidden;
    }
    
    .exploded-diagram {
        min-height: auto;
        padding: 2rem 1rem;
        overflow-x: hidden;
        width: 100%;
        max-width: 100%;
        display: flex;
        flex-direction: column;
    }
    
    .center-layers {
        width: 100%;
        max-width: 100%;
        height: 250px;
        margin-bottom: 2rem;
        position: relative;
        display: flex;
        justify-content: center;
        align-items: center;
        overflow: visible;
    }
    
    .layer-bottom,
    .layer-middle,
    .layer-top {
        position: relative;
        bottom: auto;
        left: auto;
        right: auto;
        transform: none;
        margin: 0 auto;
        width: 85% !important;
        max-width: 85%;
        height: 220px !important;
        overflow: visible;
    }
    
    .layer-visual {
        width: 100%;
        height: 100%;
        overflow: visible;
    }
    
    .layer-info {
        position: static !important;
        margin: 1.5rem 0;
        width: 100% !important;
        max-width: 100% !important;
        padding: 0;
        left: auto !important;
        right: auto !important;
        top: auto !important;
        bottom: auto !important;
        display: flex;
        flex-direction: row;
        gap: 1rem;
        align-items: flex-start;
    }
    
    .layer-info-01,
    .layer-info-02,
    .layer-info-03,
    .layer-info-04 {
        position: static !important;
        top: auto !important;
        bottom: auto !important;
        left: auto !important;
        right: auto !important;
        width: 100% !important;
        max-width: 100% !important;
    }
    
    .layer-number {
        width: 50px;
        height: 50px;
        min-width: 50px;
        font-size: 1.5rem;
        flex-shrink: 0;
    }
    
    .layer-text {
        flex: 1;
        min-width: 0;
        width: 100%;
        max-width: 100%;
        word-wrap: break-word;
        overflow-wrap: break-word;
        white-space: normal;
    }
    
    .layer-text h3 {
        font-size: 1.2rem;
        margin-bottom: 0.5rem;
        word-wrap: break-word;
        overflow-wrap: break-word;
        white-space: normal;
        hyphens: auto;
    }
    
    .layer-text p {
        font-size: 0.9rem;
        word-wrap: break-word;
        overflow-wrap: break-word;
        white-space: normal;
        hyphens: auto;
        line-height: 1.6;
    }
}

/* Video Section */
.video-section {
    padding: 4rem 0;
}

.video-hero {
    width: 100%;
    height: 600px;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.2) 0%, rgba(99, 102, 241, 0.2) 100%);
    border-radius: 20px;
    overflow: hidden;
    position: relative;
}

.video-display {
    width: 100%;
    height: 100%;
    position: relative;
}

.video-display video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 20px;
}

.video-display::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.2) 0%, rgba(139, 92, 246, 0.2) 100%);
    pointer-events: none;
    border-radius: 20px;
}

/* Application Section */
.application {
    padding: 6rem 0;
    background: var(--dark-bg-2);
}

.application-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 5rem;
}

.app-category-card {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 2rem;
    transition: transform 0.3s;
}

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

.category-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

    .category-header h3 {
        font-size: 1.5rem;
        font-weight: 600;
    }
    
    @media (max-width: 640px) {
        .category-header h3 {
            font-size: 1.2rem;
            word-wrap: break-word;
            overflow-wrap: break-word;
        }
    }

.expand-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(139, 92, 246, 0.2);
    color: var(--primary-purple);
    border: 2px solid var(--primary-purple);
    font-size: 1.5rem;
    cursor: pointer;
    transition: all 0.3s;
}

.expand-btn:hover {
    background: var(--primary-purple);
    color: var(--white);
}

.category-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.tag {
    padding: 0.6rem 1.2rem;
    background: var(--card-bg-light);
    border-radius: 20px;
    font-size: 0.9rem;
}

.test-drive-cta {
    text-align: center;
    padding: 4rem;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.2) 0%, rgba(99, 102, 241, 0.2) 100%);
    border-radius: 20px;
}

.test-drive-cta h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.test-drive-cta p {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-bottom: 2rem;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.btn-test-drive {
    padding: 1.2rem 3rem;
    background: var(--white);
    color: var(--dark-bg);
    border: none;
    border-radius: 16px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-test-drive:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

/* Comparison Section */
.comparison {
    padding: 6rem 0;
}

.comparison-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 3rem;
    position: relative;
}

.highlight {
    color: var(--primary-purple);
}

.presentation-btn {
    position: absolute;
    top: 0;
    right: 0;
    padding: 0.8rem 2rem;
    background: var(--white);
    color: var(--dark-bg);
    border: none;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

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

.comparison-content {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 4rem;
}

.comparison-features {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.feature-number {
    padding: 1.5rem;
    background: var(--card-bg);
    border-radius: 16px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    border: 2px solid transparent;
}

.feature-number.active {
    background: var(--card-bg-light);
    border-color: var(--primary-purple);
}

.feature-number:hover {
    transform: translateX(10px);
}

.comparison-visual {
    display: flex;
    gap: 2rem;
}

.compare-item {
    flex: 1;
}

.compare-img {
    width: 100%;
    height: 400px;
    border-radius: 20px;
    margin-bottom: 1rem;
    position: relative;
    overflow: hidden;
}

.compare-img video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
    border-radius: 20px;
}

.compare-img-film {
    background: 
        linear-gradient(135deg, rgba(139, 92, 246, 0.4) 0%, rgba(99, 102, 241, 0.3) 100%);
    position: relative;
}

.compare-img-film::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(3px);
    border-radius: 20px;
    z-index: 1;
    pointer-events: none;
}

.compare-img-screen {
    background: 
        linear-gradient(135deg, rgba(59, 130, 246, 0.5) 0%, rgba(139, 92, 246, 0.4) 100%);
    position: relative;
}

.compare-label {
    text-align: center;
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.transparency-slider {
    text-align: center;
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary-purple);
}

/* FAQ Section */
.faq {
    padding: 6rem 0;
    background: var(--dark-bg-2);
}

.section-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 3rem;
}

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

.faq-item {
    background: var(--card-bg);
    border-radius: 16px;
    margin-bottom: 1rem;
    overflow: hidden;
}

.faq-question {
    padding: 2rem;
    font-size: 1.3rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-question::after {
    content: '+';
    font-size: 2rem;
    transition: transform 0.3s;
}

.faq-item.active .faq-question::after {
    transform: rotate(45deg);
}

.faq-answer {
    padding: 0 2rem 2rem;
    opacity: 0.8;
    line-height: 1.8;
    display: none;
}

.faq-item.active .faq-answer {
    display: block;
}

/* Order Section */
.order-section {
    padding: 6rem 0;
}

.order-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.order-form-container {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 3rem;
}

.order-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group input {
    width: 100%;
    padding: 1.2rem;
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    background: var(--card-bg-light);
    color: var(--white);
    font-size: 1rem;
    transition: all 0.3s;
}

.form-group input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-purple);
}

.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
}

.checkbox-group input {
    width: auto;
    margin-top: 0.3rem;
}

.checkbox-group label {
    font-size: 0.9rem;
    line-height: 1.6;
}

.btn-primary {
    padding: 1.2rem 3rem;
    background: var(--accent-gradient);
    color: var(--white);
    border: none;
    border-radius: 16px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.order-info {
    margin-top: 2rem;
    padding: 1.5rem;
    background: var(--card-bg-light);
    border-radius: 12px;
    text-align: center;
}

.order-stats {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    justify-content: center;
}

.stat-item {
    text-align: center;
    padding: 2rem;
    background: var(--card-bg);
    border-radius: 20px;
}

.stat-number {
    font-size: 3.5rem;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* Footer */
.footer {
    background: var(--dark-bg-2);
    padding: 4rem 0 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h4 {
    margin-bottom: 1.5rem;
    color: var(--primary-purple);
    font-size: 1.2rem;
}

.footer-section a {
    color: var(--white);
    text-decoration: none;
    display: block;
    margin-bottom: 0.8rem;
    transition: opacity 0.3s;
}

.footer-section a:hover {
    opacity: 0.7;
}

.footer-description {
    opacity: 0.8;
    line-height: 1.8;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    padding: 0.6rem 1.2rem;
    background: var(--card-bg);
    border-radius: 8px;
    transition: all 0.3s;
}

.social-link:hover {
    background: var(--primary-purple);
}

.footer-bottom {
    padding-top: 2rem;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.6;
}

/* Cookie Notice */
.cookie-notice {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--dark-bg-2);
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.3);
    z-index: 10000;
}

.cookie-notice.hidden {
    display: none;
}

.btn-cookie {
    padding: 0.8rem 2rem;
    background: var(--accent-gradient);
    color: var(--white);
    border: none;
    border-radius: 12px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s;
}

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

/* Responsive Design */
@media (max-width: 1200px) {
    .container {
        padding: 0 30px;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .tech-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .comparison-content {
        grid-template-columns: 1fr;
    }
    
    .application-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .header-contacts {
        gap: 1rem;
    }
    
    .header-phone {
        font-size: 0.9rem;
    }
    
    .btn-calculate {
        padding: 0.6rem 1.5rem;
        font-size: 0.95rem;
    }
}

@media (max-width: 968px) {
    .header-contacts {
        display: none;
    }
    
    .header-top {
        gap: 1rem;
    }
    
    .hero-title {
        font-size: 2rem;
        line-height: 1.3;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
        margin-bottom: 2rem;
        word-wrap: break-word;
        overflow-wrap: break-word;
        hyphens: auto;
    }
    
    .hero {
        padding: 3rem 0;
        min-height: auto;
    }
    
    .led-film-graphic {
        height: 300px;
        gap: 1rem;
    }
    
    .film-strip {
        width: 250px;
        height: 180px;
    }
    
    .hero-cta {
        flex-direction: column;
        gap: 1rem;
    }
    
    .btn-large {
        width: 100%;
        padding: 1rem 2rem;
    }
    
    .principle-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .principle-card {
        height: 250px;
    }
    
    .application-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .order-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .order-form-container {
        padding: 2rem;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }
    
    .tech-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .tech-main-title {
        font-size: 2rem;
    }
    
    .section-heading,
    .section-title {
        font-size: 2.2rem;
    }
    
    .test-drive-cta {
        padding: 2rem;
    }
    
    .test-drive-cta h2 {
        font-size: 2rem;
    }
    
    .comparison-content {
        grid-template-columns: 1fr;
    }
    
    .comparison-visual {
        flex-direction: column;
    }
}

@media (max-width: 640px) {
    * {
        max-width: 100%;
        box-sizing: border-box;
    }
    
    html {
        width: 100%;
        max-width: 100vw;
        overflow-x: hidden;
        position: relative;
    }
    
    body {
        width: 100%;
        max-width: 100vw;
        overflow-x: hidden;
        position: relative;
    }
    
    .container {
        padding: 0 15px;
        width: 100%;
        max-width: 100%;
        overflow-x: hidden;
        position: relative;
    }
    
    /* Предотвратить горизонтальный скролл */
    section, div, header, footer {
        max-width: 100%;
        overflow-x: hidden;
    }
    
    /* Фиксируем все видео на мобильных */
    video {
        max-width: 100%;
        width: 100%;
        height: 100%;
        object-fit: contain !important;
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
        touch-action: none !important;
        -webkit-touch-callout: none !important;
        -webkit-user-select: none !important;
        user-select: none !important;
        pointer-events: none !important;
        -webkit-user-drag: none;
        user-drag: none;
        position: absolute;
        top: 0;
        left: 0;
        z-index: 1;
    }
    
    /* Убираем все трансформации и анимации */
    * {
        will-change: auto;
    }
    
    .header {
        padding: 1rem 0;
    }
    
    .logo-img {
        height: 35px;
        max-width: 150px;
    }
    
    .hero {
        min-height: auto;
        padding: 2rem 0;
    }
    
    .hero-title {
        font-size: 1.6rem;
        margin-bottom: 1.5rem;
        word-wrap: break-word;
        overflow-wrap: break-word;
        hyphens: auto;
        max-width: 100%;
    }
    
    .hero-subtitle {
        font-size: 1rem;
        margin-bottom: 1.5rem;
        word-wrap: break-word;
        overflow-wrap: break-word;
        hyphens: auto;
    }
    
    .hero-features-visual {
        min-height: auto;
        margin: 2rem 0;
        overflow-x: hidden;
        overflow-y: visible;
    }
    
    .led-film-graphic {
        height: auto;
        flex-direction: column;
        gap: 1rem;
        width: 100%;
        max-width: 100%;
        overflow-x: hidden;
        overflow-y: visible;
        position: relative;
        transform: none !important;
        padding: 0;
    }
    
    .film-strip {
        width: 100%;
        max-width: 100%;
        height: 180px;
        transform: none !important;
        margin: 0 auto;
        position: relative;
        animation: none !important;
        visibility: visible !important;
        opacity: 1 !important;
        overflow: visible;
    }
    
    .film-strip video {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        object-fit: contain !important;
        display: block;
        touch-action: none !important;
        -webkit-touch-callout: none !important;
        -webkit-user-select: none !important;
        user-select: none !important;
        pointer-events: none !important;
        -webkit-user-drag: none;
        user-drag: none;
    }
    
    .section-heading,
    .section-title {
        font-size: 1.8rem;
        margin-bottom: 1.5rem;
        word-wrap: break-word;
        overflow-wrap: break-word;
        max-width: 100%;
    }
    
    .section-link {
        font-size: 1rem;
        margin-bottom: 2rem;
    }
    
    .tech-main-title {
        font-size: 1.8rem;
        word-wrap: break-word;
        overflow-wrap: break-word;
        max-width: 100%;
    }
    
    .tech-subtitle-large {
        font-size: 1.1rem;
        word-wrap: break-word;
        overflow-wrap: break-word;
    }
    
    .tech-subtitle-small {
        font-size: 1rem;
        word-wrap: break-word;
        overflow-wrap: break-word;
    }
    
    .feature-image-wrapper {
        height: 200px;
        position: relative;
        visibility: visible !important;
        opacity: 1 !important;
        overflow: visible;
    }
    
    .feature-img {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        overflow: visible;
    }
    
    .feature-img video {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        object-fit: contain !important;
        display: block;
        touch-action: none !important;
        -webkit-touch-callout: none !important;
        -webkit-user-select: none !important;
        user-select: none !important;
        pointer-events: none !important;
        -webkit-user-drag: none;
        user-drag: none;
    }
    
    .tech-feature-card h3 {
        padding: 1rem;
        font-size: 1.1rem;
        word-wrap: break-word;
        overflow-wrap: break-word;
        max-width: 100%;
    }
    
    .principle-card {
        height: 200px;
        position: relative;
        overflow: visible;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .principle-img {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        overflow: visible;
    }
    
    .principle-img video {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        object-fit: contain !important;
        display: block;
        touch-action: none !important;
        -webkit-touch-callout: none !important;
        -webkit-user-select: none !important;
        user-select: none !important;
        pointer-events: none !important;
        -webkit-user-drag: none;
        user-drag: none;
    }
    
    .cta-buttons {
        flex-direction: column;
        gap: 1rem;
    }
    
    .btn-test-drive,
    .btn-outline {
        width: 100%;
        padding: 1rem 2rem;
    }
    
    .comparison-visual {
        flex-direction: column;
    }
    
    .compare-img {
        height: 300px;
    }
    
    .order-form-container {
        padding: 1.5rem;
        max-width: 100%;
        overflow-x: hidden;
    }
    
    .form-group input {
        padding: 1rem;
        font-size: 0.95rem;
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
    }
    
    .btn-primary {
        width: 100%;
        padding: 1rem 2rem;
    }
    
    .stat-item {
        padding: 1.5rem;
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
    
    .stat-label {
        font-size: 1rem;
    }
    
    .footer {
        padding: 3rem 0 1.5rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-section h4 {
        font-size: 1.1rem;
        margin-bottom: 1rem;
    }
    
    .footer .logo-img {
        height: 45px;
        max-width: 180px;
    }
    
    .cookie-notice {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
        padding: 1rem;
    }
    
    .btn-cookie {
        width: 100%;
    }
    
    .test-drive-cta {
        padding: 1.5rem;
    }
    
    .test-drive-cta h2 {
        font-size: 1.8rem;
        word-wrap: break-word;
        overflow-wrap: break-word;
        max-width: 100%;
    }
    
    .test-drive-cta p {
        font-size: 1rem;
    }
    
    .faq-question {
        padding: 1.5rem;
        font-size: 1.1rem;
        word-wrap: break-word;
        overflow-wrap: break-word;
        max-width: 100%;
    }
    
    .faq-answer {
        padding: 0 1.5rem 1.5rem;
        font-size: 0.95rem;
    }
    
    .header-phone {
        font-size: 0.9rem;
    }
    
    .btn-calculate {
        padding: 0.6rem 1.2rem;
        font-size: 0.9rem;
    }
    
    .exploded-view {
        padding: 2rem 0;
        overflow-x: hidden;
    }
    
    .exploded-diagram {
        min-height: auto;
        padding: 1rem 0.5rem;
        overflow-x: hidden;
        width: 100%;
        max-width: 100%;
    }
    
    .center-layers {
        width: 100%;
        max-width: 100%;
        height: 200px;
        margin-bottom: 1.5rem;
        position: relative;
        display: flex;
        justify-content: center;
        align-items: center;
        overflow: visible;
    }
    
    .layer-bottom {
        width: 80% !important;
        max-width: 80%;
        height: 180px !important;
        position: relative;
        visibility: visible !important;
        opacity: 1 !important;
        overflow: visible;
        margin: 0 auto;
    }
    
    .layer-visual {
        width: 100%;
        height: 100%;
        overflow: visible;
    }
    
    .layer-visual video {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        object-fit: contain !important;
        display: block;
        touch-action: none !important;
        -webkit-touch-callout: none !important;
        -webkit-user-select: none !important;
        user-select: none !important;
        pointer-events: none !important;
        -webkit-user-drag: none;
        user-drag: none;
    }
    
    .layer-info {
        position: static !important;
        margin: 1rem 0;
        width: 100% !important;
        max-width: 100% !important;
        padding: 0;
        left: auto !important;
        right: auto !important;
        top: auto !important;
        bottom: auto !important;
        display: flex;
        flex-direction: row;
        gap: 0.8rem;
        align-items: flex-start;
    }
    
    .layer-info-01,
    .layer-info-02,
    .layer-info-03,
    .layer-info-04 {
        position: static !important;
        top: auto !important;
        bottom: auto !important;
        left: auto !important;
        right: auto !important;
        width: 100% !important;
        max-width: 100% !important;
    }
    
    .layer-number {
        width: 45px;
        height: 45px;
        min-width: 45px;
        font-size: 1.3rem;
        flex-shrink: 0;
    }
    
    .layer-text {
        flex: 1;
        min-width: 0;
        width: 100%;
        max-width: 100%;
        word-wrap: break-word;
        overflow-wrap: break-word;
        white-space: normal;
    }
    
    .layer-text h3 {
        font-size: 1.1rem;
        margin-bottom: 0.4rem;
        word-wrap: break-word;
        overflow-wrap: break-word;
        white-space: normal;
        hyphens: auto;
        line-height: 1.4;
    }
    
    .layer-text p {
        font-size: 0.85rem;
        line-height: 1.5;
        word-wrap: break-word;
        overflow-wrap: break-word;
        white-space: normal;
        hyphens: auto;
    }
}