:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --background-color: #ecf0f1;
    --text-color: #34495e;
    --white-color: #ffffff;
    --card-shadow: 0 4px 15px rgba(0,0,0,0.1);
}
body { font-family: 'Open Sans', sans-serif; margin: 0; padding: 0; background-color: var(--background-color); color: var(--text-color); line-height: 1.6; }
h1, h2, h3, h4, h5 { font-family: 'Montserrat', sans-serif; color: var(--primary-color); }
header { background-color: var(--white-color); padding: 1rem 5%; box-shadow: 0 2px 5px rgba(0,0,0,0.1); display: flex; justify-content: space-between; align-items: center; position: sticky; top: 0; z-index: 1000; }
.logo img { height: 40px; vertical-align: middle; }
nav ul { list-style: none; margin: 0; padding: 0; display: flex; }
nav ul li { margin-left: 2rem; }
nav ul li a { text-decoration: none; color: var(--text-color); font-weight: 600; transition: color 0.3s ease; }
nav ul li a:hover, nav ul li a.active { color: var(--secondary-color); }
.nav-toggle { display: none; }
.hero { position: relative; height: 70vh; color: var(--white-color); display: flex; align-items: center; justify-content: center; text-align: center; }
.swiper-container { width: 100%; height: 100%; position: absolute; top: 0; left: 0; z-index: -1; }
.swiper-slide { background-size: cover; background-position: center; }
.hero::after { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0, 0, 0, 0.6); }
.hero-content { z-index: 1; padding: 2rem; }
.hero h1 { font-size: 3.5rem; margin-bottom: 1rem; color: var(--white-color); }
.hero p { font-size: 1.2rem; margin-bottom: 2rem; }
.hero .btn { background-color: var(--secondary-color); color: var(--white-color); padding: 1rem 2.5rem; text-decoration: none; border-radius: 5px; font-weight: bold; transition: background-color 0.3s; }
.hero .btn:hover { background-color: #2980b9; }
main { padding: 3rem 5%; }
.section { background: var(--white-color); padding: 3rem; margin-bottom: 2rem; border-radius: 8px; box-shadow: var(--card-shadow); }
.about-section { display: flex; align-items: center; gap: 3rem; }
.about-section .about-img { flex: 1; max-width: 450px; border-radius: 8px; }
.about-text { flex: 2; }
.about-text .tagline {
    font-size: 1.1rem;
    font-weight: 600;
    font-style: italic;
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
}
.btn-link { color: var(--secondary-color); text-decoration: none; font-weight: bold; }

/* New Testimonial Section Styles */
.testimonial-section {
    background-color: var(--white-color);
    padding: 4rem 0;
    position: relative;
}
.testimonial-title {
    text-align: center;
    margin-bottom: 3rem;
}
.testimonial-title .subtitle {
    font-weight: 600;
    color: var(--text-color);
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
}
.testimonial-title h2 {
    font-size: 2.8rem;
    line-height: 1.2;
}
.testimonial-swiper-container {
    width: 100%;
    padding: 2rem 0;
    overflow: hidden;
}
.testimonial-swiper-container .swiper-wrapper {
    align-items: center; 
}

.testimonial-swiper-container .swiper-slide {
    width: 70%;
    transition: all 0.3s ease;
    opacity: 0.4;
    transform: scale(0.85);
}

.testimonial-swiper-container .swiper-slide-active {
    opacity: 1;
    transform: scale(1);
}

.testimonial-card {
    background: var(--white-color);
    border-radius: 10px;
    box-shadow: var(--card-shadow);
    padding: 2.5rem;
    display: flex;
    gap: 2rem;
    align-items: center;
}
.testimonial-card .client-image-wrapper {
    flex-shrink: 0;
}
.testimonial-card .client-image {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    border: 5px solid var(--secondary-color);
}
.testimonial-card .client-info { text-align: left; }
.testimonial-card .client-feedback {
    font-style: normal;
    font-size: 1.1rem;
    color: var(--text-color);
    margin: 0 0 1.5rem 0;
    position: relative;
}
.testimonial-card .client-feedback::before {
   display: none;
}
.testimonial-card .client-name {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.3rem;
    font-weight: 700;
    margin: 0;
}
.testimonial-card .client-location {
    color: var(--text-color);
    margin-top: 0.25rem;
}
.testimonial-nav button {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--white-color);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    border: 1px solid #eee;
    cursor: pointer;
    z-index: 10;
    color: var(--secondary-color);
    font-size: 1.5rem;
    transition: all 0.3s ease;
}
.testimonial-nav .testimonial-prev {
    left: -25px;
}
.testimonial-nav .testimonial-next {
    right: -25px;
}
.testimonial-nav button:hover {
    background-color: var(--secondary-color);
    color: var(--white-color);
}

/* Product Videos Section */
.product-videos-section {
    padding: 4rem 5%;
    background-color: #e8f1f9ad;
}
.product-videos-section .section-title {
    text-align: center;
    color: #000;
    font-size: 2.8rem;
    margin-bottom: 3rem;
}
.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}
.video-item {
    position: relative;
    cursor: pointer;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0,0,0,0.25);
    background: #000;
}
.video-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
}
.video-item:hover img {
    transform: scale(1.05);
    opacity: 0.8;
}
.video-item .play-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 70px;
    height: 70px;
    background-color: rgba(255, 0, 0, 0.85);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: background-color 0.3s ease, transform 0.3s ease;
    pointer-events: none;
}
.video-item .play-button svg {
    width: 35px;
    height: 35px;
    fill: var(--white-color);
    transform: translateX(3px);
}
.video-item:hover .play-button {
     background-color: rgba(255, 0, 0, 1);
     transform: translate(-50%, -50%) scale(1.1);
}
.video-item iframe {
    width: 100%;
    aspect-ratio: 16 / 9;
    border: none;
}

.site-footer { background-color: var(--primary-color); color: rgba(255, 255, 255, 0.8); padding: 2.5rem 5%; }
.footer-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 3rem; }
.footer-column h5 { color: var(--white-color); font-size: 1.2rem; margin-bottom: 1.5rem; }
.footer-column ul { list-style: none; padding: 0; margin: 0; }
.footer-column ul li { margin-bottom: 1rem; }
.footer-column ul a { color: rgba(255, 255, 255, 0.8); text-decoration: none; transition: color 0.3s ease; }
.footer-column ul a:hover { color: var(--white-color); }
.contact-info li { display: flex; align-items: flex-start; }
.contact-info svg { width: 20px; height: 20px; fill: var(--secondary-color); margin-right: 1rem; flex-shrink: 0; margin-top: 4px; }
.social-icons { display: flex; gap: 1rem; margin-top: 1.5rem; }
.social-icons a { display: flex; justify-content: center; align-items: center; width: 40px; height: 40px; border: 1px solid rgba(255, 255, 255, 0.3); border-radius: 5px; color: var(--white-color); transition: background-color 0.3s ease, border-color 0.3s ease; }
.social-icons a:hover { background-color: var(--secondary-color); border-color: var(--secondary-color); }
.social-icons svg { width: 20px; height: 20px; fill: currentColor; }
.footer-bottom { margin-top: 3rem; padding-top: 2rem; border-top: 1px solid rgba(255, 255, 255, 0.1); text-align: center; font-size: 0.9rem; }
.scroll-to-top { position: fixed; bottom: 2rem; right: 2rem; background-color: var(--secondary-color); color: var(--white-color); border: none; border-radius: 5px; width: 50px; height: 50px; font-size: 1.5rem; cursor: pointer; opacity: 0; visibility: hidden; transition: opacity 0.3s, visibility 0.3s, background-color 0.3s; z-index: 100; }
.scroll-to-top.visible { opacity: 1; visibility: visible; }
.scroll-to-top:hover { background-color: var(--primary-color); }

/* --- Responsive Styles --- */

@media (max-width: 992px) {
    .hero h1 { font-size: 3rem; }
    .about-section { gap: 2rem; }
    .testimonial-title h2 { font-size: 2.5rem; }
    .testimonial-swiper-container .swiper-slide { width: 80%; }
}

@media (max-width: 768px) {
    .hero h1 { font-size: 2.5rem; }
    .hero p { font-size: 1.1rem; }
    
    main { padding: 3rem 1rem; }
    .section { padding: 2.5rem 1.5rem; }

    .about-section {
        flex-direction: column;
        text-align: left;
        padding: 0;
    }
    .about-section .about-img {
        width: 100%;
        max-width: 100%;
        border-radius: 8px 8px 0 0;
    }
    .about-section .about-text {
        padding: 2.5rem 1.5rem;
    }
    
    .testimonial-section { padding: 3rem 1rem; }
    .testimonial-title h2 { font-size: 2.2rem; }
    .testimonial-swiper-container { padding: 0; }
    .testimonial-swiper-container .swiper-slide {
        width: 100%;
        opacity: 1;
        transform: scale(1);
    }
    .testimonial-card {
        flex-direction: column;
        text-align: center;
        position: relative;
        padding: 2rem;
        margin-top: 50px;
    }
    .testimonial-card .client-image-wrapper {
        position: absolute;
        top: 0;
        left: 50%;
        transform: translate(-50%, -50%);
    }
    .testimonial-card .client-info {
        text-align: center;
        margin-top: 60px;
    }
    .testimonial-nav { display: none; }

    .product-videos-section { padding: 3rem 1rem; }
    .video-grid { grid-template-columns: 1fr; }

    .footer-grid { text-align: center; }
    .contact-info li { justify-content: center; }
    .social-icons { justify-content: center; }

    body.nav-open { overflow: hidden; }
    .nav-toggle { display: block; background: transparent; border: 0; cursor: pointer; position: absolute; top: 1.7rem; right: 1.5rem; z-index: 1001; }
    .hamburger { display: block; position: relative; width: 1.5em; height: 2px; background: var(--primary-color); border-radius: 2px; transition: transform 250ms ease-in-out; }
    .hamburger::before, .hamburger::after { content: ''; position: absolute; left: 0; right: 0; height: 2px; background: currentColor; border-radius: 2px; transition: all 250ms ease-in-out; }
    .hamburger::before { top: -6px; }
    .hamburger::after { bottom: -6px; }
    body.nav-open .hamburger { transform: rotate(0.625turn); }
    body.nav-open .hamburger::before { top: 0; }
    body.nav-open .hamburger::after { bottom: 0; transform: rotate(90deg); }
    nav { position: fixed; top: 0; right: 0; bottom: 0; left: 0; background-color: rgba(255, 255, 255, 0.95); transform: translateX(100%); transition: transform 250ms ease-in-out; }
    body.nav-open nav { transform: translateX(0); }
    header { padding: 1rem 1.5rem; }
    nav ul { flex-direction: column; justify-content: center; align-items: center; height: 100%; }
    nav ul li { margin: 1.5rem 0; }
    nav ul li a { font-size: 1.2rem; }
}

@media (max-width: 480px) {
    main { padding: 2rem 1rem; }
    .section { padding: 2rem 1rem; }

    .hero h1 { font-size: 2rem; }
    .hero p { font-size: 1rem; }
    .about-text h2, .testimonial-title h2, .product-videos-section .section-title { font-size: 1.8rem; }
    .testimonial-swiper-container .swiper-slide { width: 95%; }
    .testimonial-card { padding: 1.5rem; }
    .footer-column h5 { font-size: 1.1rem; }
}