:root {
        --primary: #1a1d24;
        --accent: #4a5568;
        --light-bg: #f8f9fa;
        --medium-bg: #e2e8f0;
        --dark-text: #212529;
        --light-text: #f8f9fa;
        --border: #dee2e6;
        --highlight: #1a1a1a;
        --performance: #2c5282;
    }

    body {
        font-family: 'Roboto', sans-serif;
        line-height: 1.7;
        color: var(--dark-text);
        background-color: #fff;
        min-height: 100vh;
        padding-bottom: 40px;
        overflow-x: hidden;
    }

    .container {
        max-width: 1400px;
        margin: 0 auto;
        padding: 0 20px;
    }

    /* Header Styles */
    header {
        text-align: center;
        padding: 100px 20px 70px;
        background: linear-gradient(to bottom, #f0f2f5 0%, #e2e6ea 100%);
        color: var(--dark-text);
        position: relative;
        overflow: hidden;
        margin-bottom: 60px;
        box-shadow: 0 4px 20px rgba(0,0,0,0.05);
    }

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

    h1 {
        font-family: 'Montserrat', sans-serif;
        font-size: 3.8rem;
        font-weight: 800;
        letter-spacing: -1.5px;
        margin-bottom: 20px;
        text-transform: uppercase;
        line-height: 1.1;
        color: var(--primary);
        text-shadow: 0 2px 4px rgba(0,0,0,0.1);
    }

    .subtitle {
        font-size: 1.5rem;
        opacity: 0.85;
        max-width: 700px;
        margin: 0 auto 40px;
        font-weight: 400;
        color: #495057;
    }

    .header-line {
        height: 2px;
        background: linear-gradient(90deg, transparent, rgba(0, 0, 0, 0.3), transparent);
        width: 60%;
        margin: 40px auto;
    }

    /* Product Section Styles */
    .product-section {
        display: flex;
        align-items: center;
        margin-bottom: 140px;
        position: relative;
    }

    .image-container {
        flex: 1;
        min-height: 500px;
        display: flex;
        align-items: center;
        justify-content: center;
        position: relative;
        overflow: hidden;
        background: var(--light-bg);
        border-radius: 10px;
        box-shadow: 0 20px 50px rgba(0,0,0,0.1);
        transition: all 0.5s ease;
    }

    .image-container:hover {
        box-shadow: 0 25px 60px rgba(0,0,0,0.15);
        transform: translateY(-5px);
    }

    .image-container img {
        max-width: 85%;
        max-height: 380px;
        transition: transform 0.6s cubic-bezier(0.215, 0.61, 0.355, 1);
        filter: grayscale(20%) contrast(110%) brightness(1.02);
    }

    .image-container:hover img {
        transform: scale(1.05);
        filter: grayscale(0%) contrast(120%);
    }

    .content {
        flex: 1;
        padding: 0 70px;
    }

    .section-title {
        font-family: 'Montserrat', sans-serif;
        font-size: 2.4rem;
        font-weight: 700;
        margin-bottom: 35px;
        color: var(--primary);
        position: relative;
        padding-bottom: 15px;
    }

    .section-title:after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 0;
        width: 80px;
        height: 4px;
        background: var(--accent);
    }

    .section-subtitle {
        font-size: 1.35rem;
        margin-bottom: 30px;
        font-weight: 500;
        color: #495057;
        line-height: 1.6;
    }

    .benefits-list {
        margin: 40px 0;
    }

    .benefit-item {
        display: flex;
        margin-bottom: 30px;
        align-items: flex-start;
        transition: transform 0.3s ease;
    }

    .benefit-item:hover {
        transform: translateX(5px);
    }

    .benefit-icon {
        width: 55px;
        height: 55px;
        background: linear-gradient(135deg, var(--primary) 0%, #1a1a1a 100%);
        color: var(--light-text);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-right: 20px;
        flex-shrink: 0;
        font-size: 1.3rem;
        box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    }

    .benefit-content h3 {
        font-family: 'Montserrat', sans-serif;
        font-size: 1.35rem;
        margin-bottom: 8px;
        color: var(--primary);
    }

    .benefit-content p {
        color: #495057;
        font-size: 1.1rem;
    }

    .spec-highlight {
        background: var(--light-bg);
        padding: 35px 40px;
        border-radius: 8px;
        margin: 40px 0;
        border-left: 4px solid var(--accent);
        position: relative;
        overflow: hidden;
    }

    .spec-highlight:before {
        content: """;
        position: absolute;
        left: 15px;
        top: -30px;
        font-size: 8rem;
        color: rgba(0, 0, 0, 0.1);
        font-family: Georgia, serif;
        z-index: 0;
    }

    .spec-highlight p {
        font-size: 1.15rem;
        color: var(--dark-text);
        font-style: italic;
        position: relative;
        padding-left: 20px;
        z-index: 1;
        font-weight: 500;
    }

    .alternate {
        flex-direction: row-reverse;
    }

    .material-section {
        text-align: center;
        margin: 120px 0;
        padding: 0 20px;
    }

    .material-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 50px;
        margin-top: 60px;
    }

    .material-card {
        padding: 50px 40px;
        background: var(--light-bg);
        border-radius: 10px;
        transition: all 0.4s ease;
        position: relative;
        overflow: hidden;
        box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    }

    .material-card:before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 5px;
        background: var(--accent);
        transform: scaleX(0);
        transform-origin: left;
        transition: transform 0.4s ease;
    }

    .material-card:hover {
        transform: translateY(-10px);
        box-shadow: 0 15px 40px rgba(0,0,0,0.1);
    }

    .material-card:hover:before {
        transform: scaleX(1);
    }

    .material-icon {
        font-size: 3.5rem;
        margin-bottom: 25px;
        color: var(--primary);
        transition: transform 0.4s ease;
    }

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

    .material-title {
        font-family: 'Montserrat', sans-serif;
        font-size: 1.6rem;
        margin-bottom: 20px;
        color: var(--primary);
    }

    .material-desc {
        color: #495057;
        font-size: 1.1rem;
        margin: 0 auto;
        line-height: 1.7;
    }

    .performance-section {
        background: var(--medium-bg);
        color: var(--dark-text);
        padding: 120px 0;
        margin: 120px 0 60px;
        position: relative;
        border-top: 1px solid var(--border);
        border-bottom: 1px solid var(--border);
    }

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

    .performance-title {
        font-family: 'Montserrat', sans-serif;
        font-size: 2.7rem;
        margin-bottom: 30px;
        color: var(--primary);
    }

    .performance-text {
        font-size: 1.25rem;
        opacity: 0.9;
        margin-bottom: 40px;
        line-height: 1.8;
        color: #495057;
    }

    /* Enhanced Contact Button */
    .performance-cta {
        display: inline-block;
        background: transparent;
        color: var(--primary);
        padding: 18px 50px;
        border: 2px solid var(--primary);
        border-radius: 0;
        text-decoration: none;
        font-weight: 700;
        text-transform: uppercase;
        letter-spacing: 2px;
        margin-top: 20px;
        transition: all 0.4s ease;
        font-size: 1rem;
        position: relative;
        overflow: hidden;
        animation: pulse 2s infinite;
        transform: translateZ(0);
    }

    .performance-cta:before {
        content: '';
        position: absolute;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100%;
        background: var(--primary);
        transition: transform 0.4s ease;
        z-index: -1;
    }

    .performance-cta:hover {
        color: #fff;
        border-color: var(--primary);
        transform: translateY(-3px);
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
    }

    .performance-cta:hover:before {
        transform: translateX(100%);
    }

    .performance-cta:after {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
        transform: translateX(-100%);
        transition: transform 0.6s ease;
    }

    .performance-cta:hover:after {
        transform: translateX(100%);
    }

    .weight-badge {
        background: var(--performance);
        color: white;
        padding: 4px 12px;
        border-radius: 20px;
        font-size: 0.9rem;
        display: inline-block;
        margin-top: 5px;
    }

    /* Responsive Design */
    @media (max-width: 1100px) {
        .product-section {
            flex-direction: column;
            margin-bottom: 100px;
        }

        .alternate {
            flex-direction: column;
        }

        .image-container {
            width: 100%;
            min-height: 400px;
            margin-bottom: 50px;
        }

        .content {
            padding: 0 20px;
        }

        .material-grid {
            grid-template-columns: 1fr;
            gap: 40px;
        }

        h1 {
            font-size: 3rem;
        }
    }

    @media (max-width: 768px) {
        header {
            padding: 70px 20px 50px;
        }

        h1 {
            font-size: 2.5rem;
        }

        .subtitle {
            font-size: 1.3rem;
        }

        .section-title {
            font-size: 2rem;
        }

        .section-subtitle {
            font-size: 1.15rem;
        }

        .content {
            padding: 0 15px;
        }

        .material-card {
            padding: 40px 25px;
        }
    }

    /* Animation Effects */
    .animate-in {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.8s ease, transform 0.8s ease;
    }

    .animate-in.appear {
        opacity: 1;
        transform: translateY(0);
    }

    /* Pulse animation for contact button */
    @keyframes pulse {
        0% {
            box-shadow: 0 0 0 0 rgba(0, 0, 0, 0.15);
        }
        70% {
            box-shadow: 0 0 0 12px rgba(0, 0, 0, 0);
        }
        100% {
            box-shadow: 0 0 0 0 rgba(0, 0, 0, 0);
        }
    }