:root {
    --primary-color: #2e7d32;
    --primary-light: #4caf50;
    --secondary-color: #1a1a1a;
    --text-color: #333;
    --text-light: #666;
    --bg-white: #ffffff;
    --bg-light: #f5f7f9;
    --container-width: 1200px;
    --border-radius: 12px;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

/* Page entrance animation */
@keyframes pageFadeIn {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
}

main {
    animation: pageFadeIn 0.5s ease forwards;
}

/* Scroll-triggered reveal */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.35s; }

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    background-color: var(--bg-white);
    overflow-x: hidden;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
.header {
    padding: 18px 0;
    background: rgba(255, 255, 255, 0.95);
    border-bottom: 1px solid rgba(0,0,0,0.06);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: box-shadow 0.3s, background 0.3s, padding 0.3s;
    backdrop-filter: blur(0px);
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.08);
    padding: 12px 0;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.logo-img {
    height: 44px;
    width: auto;
    display: block;
    transition: transform 0.3s;
}

.logo:hover .logo-img {
    transform: scale(1.04);
}

.nav {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav a {
    text-decoration: none;
    color: var(--text-color);
    padding: 8px 14px;
    font-weight: 500;
    font-size: 15px;
    position: relative;
    transition: color 0.3s;
}

.nav a::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 14px;
    right: 14px;
    height: 2px;
    background: var(--primary-color);
    transform: scaleX(0);
    transform-origin: center;
    transition: transform 0.3s ease;
    border-radius: 1px;
}

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

.nav a:hover::after {
    transform: scaleX(1);
}

/* Hamburger Button */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
    border: none;
    background: none;
    z-index: 1100;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--secondary-color);
    border-radius: 2px;
    transition: all 0.3s ease;
    transform-origin: center;
}

.hamburger.open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.hamburger.open span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.hamburger.open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Nav Drawer */
.mobile-nav {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(20px);
    z-index: 1050;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 30px;
    opacity: 0;
    transform: translateY(-20px);
    transition: opacity 0.3s ease, transform 0.3s ease;
    pointer-events: none;
}

.mobile-nav.open {
    display: flex;
    opacity: 1;
    transform: translateY(0);
    pointer-events: all;
}

.mobile-nav a {
    font-size: 24px;
    font-weight: 700;
    color: var(--secondary-color);
    text-decoration: none;
    transition: color 0.3s;
}

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

.mobile-nav .mobile-contact {
    margin-top: 20px;
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.mobile-nav .mobile-contact a {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-light);
}

.mobile-nav .mobile-contact a:hover {
    color: var(--primary-color);
}

.contact-info {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 5px;
    font-size: 14px;
}

.contact-info a {
    text-decoration: none;
    color: var(--secondary-color);
    font-weight: 600;
    transition: color 0.3s;
    white-space: nowrap;
}

.contact-info a:hover {
    color: var(--primary-color);
}


/* Hero Section */
.hero {
    padding: 80px 0;
    min-height: 60vh;
    display: flex;
    align-items: center;
    background: radial-gradient(circle at right, #f9fbf9 0%, #ffffff 100%);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content h1 {
    font-size: 48px;
    line-height: 1.1;
    margin-bottom: 30px;
    color: var(--secondary-color);
    font-weight: 800;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 40px;
}

.stat-item {
    border-left: 3px solid var(--primary-color);
    padding-left: 15px;
}

.stat-value {
    display: block;
    font-size: 32px;
    font-weight: 700;
    color: var(--primary-color);
}

.stat-label {
    font-size: 14px;
    color: var(--text-light);
}

.hero-desc {
    font-size: 18px;
    color: var(--text-light);
    margin-bottom: 40px;
    max-width: 500px;
}

.hero-image img {
    width: 100%;
    height: auto;
    animation: floatAndPulse 6s ease-in-out infinite;
}

/* Video Showcase Section */
.video-showcase {
    position: relative;
    padding: 0; /* No padding since video is full-bleed */
    min-height: 500px;
    height: 70vh; /* Set a specific viewport-based height */
    display: flex;
    align-items: center;
    overflow: hidden;
    color: #fff;
    background: #000;
}

.video-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.showcase-vid {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-controls {
    position: absolute;
    bottom: 30px;
    right: 30px;
    z-index: 10;
}

.mute-btn {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
    padding: 12px 24px;
    border-radius: 50px;
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s;
}

.mute-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.05);
}

.mute-btn svg {
    width: 20px;
    height: 20px;
    fill: currentColor;
}

.video-controls {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 15px;
}

.volume-control-wrapper {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 10px 20px;
    border-radius: 50px;
    display: flex;
    align-items: center;
    width: 150px;
    transition: all 0.3s;
    opacity: 0.5; /* Subtle when muted/not in use */
}

.volume-control-wrapper:hover {
    opacity: 1;
    background: rgba(255, 255, 255, 0.3);
}

.volume-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 4px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 2px;
    outline: none;
    cursor: pointer;
}

.volume-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 12px;
    height: 12px;
    background: white;
    border-radius: 50%;
    box-shadow: 0 0 10px rgba(0,0,0,0.3);
    transition: transform 0.2s;
}

.volume-slider::-webkit-slider-thumb:hover {
    transform: scale(1.3);
}

.desktop-vid { display: block; }
.mobile-vid { display: none; }

@media (max-width: 768px) {
    .desktop-vid { display: none; }
    .mobile-vid { display: block; }
    
    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-content h1 {
        font-size: 36px;
    }
    
    .hero-desc {
        margin: 0 auto 30px;
    }
}

@keyframes floatAndPulse {
    0% {
        transform: translateY(0) scale(1);
    }
    50% {
        transform: translateY(-15px) scale(1.02);
    }
    100% {
        transform: translateY(0) scale(1);
    }
}

.hero-image img {
    width: 100%;
    height: auto;
    filter: drop-shadow(0 20px 40px rgba(0,0,0,0.1));
    animation: floatAndPulse 6s ease-in-out infinite;
}

/* Dropdown Menu Styles */
.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-toggle {
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 15px;
    border-radius: 4px;
    transition: background-color 0.3s, color 0.3s;
}

.dropdown:hover .dropdown-toggle {
    background-color: var(--primary-color);
    color: white;
}

.dropdown-toggle svg {
    width: 12px;
    height: 12px;
    fill: currentColor;
    transition: transform 0.3s ease;
}

.dropdown:hover .dropdown-toggle svg {
    transform: rotate(180deg);
}

.dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background-color: white;
    min-width: 250px;
    box-shadow: 0px 8px 24px rgba(0,0,0,0.15);
    z-index: 1000;
    border: 1px solid #eee;
    padding: 10px 0;
    border-radius: 4px;
}

.dropdown:hover .dropdown-menu {
    display: block;
}

.dropdown-menu a {
    color: var(--text-color);
    padding: 12px 20px;
    text-decoration: none;
    display: block;
    font-size: 16px;
    transition: background-color 0.2s;
    font-weight: 400;
}

.dropdown-menu a:hover {
    background-color: var(--bg-light);
    color: var(--primary-color);
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 15px;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
    font-family: inherit;
    letter-spacing: 0.02em;
}

.btn-primary {
    background-color: var(--primary-color);
    background-image: linear-gradient(135deg, #2e7d32, #43a047);
    color: white;
    border-color: transparent;
    box-shadow: 0 4px 15px rgba(46, 125, 50, 0.25);
}

.btn-primary:hover {
    background-image: linear-gradient(135deg, #256128, #388e3c);
    transform: translateY(-3px);
    box-shadow: 0 12px 28px rgba(46, 125, 50, 0.35);
}

.btn-primary:active {
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(46, 125, 50, 0.2);
}

.btn-lg {
    padding: 18px 42px;
    font-size: 16px;
}

/* How it Works */
.how-it-works {
    padding: 100px 0;
    background: var(--bg-light);
    text-align: center;
}

.section-title {
    font-size: 36px;
    margin-bottom: 60px;
    font-weight: 700;
}

.how-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.how-card {
    background: var(--bg-white);
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: transform 0.3s;
}

.how-card:hover {
    transform: translateY(-10px);
}

.how-card img {
    width: 120px;
    height: auto;
    margin-bottom: 25px;
}

/* Emoji icon fallback when images are replaced with emoji */
.how-icon {
    font-size: 52px;
    margin-bottom: 20px;
    display: block;
    line-height: 1;
    filter: drop-shadow(0 4px 10px rgba(0,0,0,0.08));
}

.how-card h3 {
    margin-bottom: 15px;
    font-size: 20px;
    font-weight: 700;
}

/* Products Section */
.products {
    padding: 100px 0;
}

.product-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0 15px;
}

.product-table th {
    text-align: left;
    padding: 15px 30px;
    color: var(--text-light);
    font-weight: 500;
    font-size: 15px;
    border-bottom: none;
}

.product-table td {
    background: var(--bg-light);
    padding: 25px 30px;
    vertical-align: middle;
    color: var(--text-color);
}

.product-table tr td:first-child {
    border-radius: 12px 0 0 12px;
    font-weight: 700;
    color: var(--secondary-color);
}

.product-table tr td:last-child {
    border-radius: 0 12px 12px 0;
    text-align: right; /* Aligns image to the right */
}

.product-table img.product-thumbnail {
    height: 60px;
    width: 80px;
    object-fit: contain;
    mix-blend-mode: multiply; /* Helps transparent PNG/WebP blend nicely with background */
}

/* ECO Amplifier Feature Section */
.eco-amplifier-feature {
    padding: 100px 0;
    background: #fff;
}

.amplifier-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.amplifier-image img {
    width: 100%;
    height: auto;
    border-radius: 24px;
    box-shadow: 0 30px 60px rgba(0,0,0,0.1);
}

.amplifier-tag {
    color: var(--primary-color);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 14px;
    margin-bottom: 15px;
}

.amplifier-title {
    font-size: 42px;
    line-height: 1.2;
    margin-bottom: 25px;
    color: var(--secondary-color);
    font-weight: 800;
}

.amplifier-desc {
    font-size: 18px;
    color: var(--text-light);
    margin-bottom: 35px;
    line-height: 1.6;
}

@media (max-width: 900px) {
    .amplifier-grid {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
}

/* Calculator */
.calculator {
    padding: 100px 0;
    background: #f0f4f0;
}

.calc-card {
    background: var(--bg-white);
    padding: 50px;
    border-radius: 20px;
    box-shadow: 0 30px 60px rgba(0,0,0,0.05);
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
}

.calc-inputs {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.input-group label {
    display: block;
    margin-bottom: 10px;
    font-weight: 500;
    font-size: 14px;
    color: var(--text-light);
}

.input-group input {
    width: 100%;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 16px;
    font-family: inherit;
}

.calc-results {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.savings-val {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary-color);
}

/* Testimonials */
.testimonials {
    padding: 100px 0;
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.testimonial-card {
    background: var(--bg-light);
    padding: 30px;
    border-radius: 20px;
    transition: all 0.3s;
}

.testimonial-card:hover {
    transform: translateY(-5px);
    background: var(--bg-white);
    box-shadow: var(--shadow);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.user-avatar {
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

.rating {
    color: #ffb400;
    font-size: 14px;
}

.testimonial-text {
    font-style: italic;
    color: var(--text-light);
}


/* Contacts Section */
.contacts {
    padding: 60px 0; /* Reduced from 100px */
    background: var(--bg-white);
}

.contacts-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
    align-items: start;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 24px;
    background: var(--bg-light);
    border-radius: 12px;
    transition: transform 0.3s;
}

.contact-item:hover {
    transform: translateX(10px);
}

.contact-item .icon {
    font-size: 32px;
}

.contact-item h4 {
    margin-bottom: 5px;
    color: var(--secondary-color);
}

.contact-item p {
    color: var(--text-light);
    font-size: 14px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 16px;
    font-family: inherit;
    transition: border-color 0.3s;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* Brands Strip - 16:9 Grid */
.brands {
    padding: 30px 0; /* Tight vertical padding */
    text-align: center;
    background: #ffffff; /* Use white for seamless edge-to-edge */
    border-top: 1px solid #f0f0f0;
    border-bottom: 1px solid #f0f0f0;
}

.brand-title {
    font-weight: 600;
    margin-bottom: 25px;
    color: var(--text-light);
    letter-spacing: 2px;
    text-transform: uppercase;
    font-size: 11px;
    opacity: 0.6;
}

.logos-container {
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 40px;
}

.logos-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
    align-items: center;
}

.logo-item {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 15px;
    height: 60px; /* Even tighter for strip look */
    transition: all 0.3s ease;
}

.logo-item img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    filter: grayscale(1);
    opacity: 0.45;
    transition: all 0.3s ease;
}

.logo-item:hover img {
    filter: grayscale(0);
    opacity: 1;
    transform: scale(1.1);
}

@media (max-width: 768px) {
    .logos-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .logo-item {
        height: 50px;
    }
}

/* Footer Section Refined */
.footer {
    background: var(--secondary-color);
    color: white;
    padding: 80px 0 40px;
}

.footer-top {
    display: grid;
    grid-template-columns: 1.8fr 1fr 1fr 1fr;
    gap: 50px;
    margin-bottom: 60px;
}

.footer-brand .logo {
    color: white;
    margin-bottom: 20px;
    display: block;
}

.footer-brand p {
    color: #aaa;
    max-width: 300px;
    line-height: 1.6;
}

.footer-nav h4,
.footer-social h4 {
    margin-bottom: 25px;
    font-size: 18px;
    font-weight: 600;
}

.footer-nav {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-nav a {
    color: #aaa;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-nav a:hover {
    color: white;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-icon {
    width: 40px;
    height: 40px;
    background: #333;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: white;
    text-decoration: none;
    transition: background 0.3s;
    font-size: 14px;
    font-weight: 600;
}

.social-icon:hover {
    background: var(--primary-color);
}

.footer-bottom {
    padding-top: 40px;
    border-top: 1px solid #333;
    text-align: center;
    color: #777;
    font-size: 14px;
}

@media (max-width: 992px) {
    /* Show hamburger, hide desktop nav */
    .hamburger {
        display: flex;
    }
    .nav,
    .contact-info {
        display: none;
    }

    /* Collapse grids to single column */
    .hero-grid,
    .calc-card,
    .testimonial-grid,
    .contacts-grid {
        grid-template-columns: 1fr;
    }

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

    .hero-content h1 {
        font-size: 38px;
    }

    .hero-image {
        order: -1;
        text-align: center;
    }

    .how-grid {
        grid-template-columns: 1fr;
    }

    .footer-brand p {
        margin: 0 auto 20px;
        max-width: 100%;
    }

    .social-links {
        justify-content: center;
    }

    .section-title {
        font-size: 30px;
    }
}

@media (max-width: 576px) {
    .footer-top {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-top .footer-nav a,
    .footer-top .footer-social a {
        display: inline-block;
    }

    .social-links {
        justify-content: center;
    }

    .hero-content h1 {
        font-size: 30px;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .page-title {
        font-size: 38px;
    }

    .reviews-grid {
        grid-template-columns: 1fr;
    }
}


/* About Page Specific Styles */
.about-page .header .nav a.active {
    color: var(--primary-color);
    font-weight: 700;
}

.about-hero {
    padding: 120px 0 100px;
    background: radial-gradient(circle at right, #f9fbf9 0%, #ffffff 50%);
    text-align: left;
}

.about-hero .container {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 60px;
    align-items: center;
}

.page-title {
    font-size: 56px;
    line-height: 1.1;
    color: var(--secondary-color);
    margin-bottom: 25px;
    font-weight: 800;
}

.hero-subtitle {
    font-size: 20px;
    color: var(--text-light);
    max-width: 100%;
    margin: 0;
    line-height: 1.5;
}

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

.about-content {
    padding: 120px 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 60px;
    margin-bottom: 120px;
    align-items: center;
}

.about-text h3 {
    font-size: 32px;
    color: var(--secondary-color);
    margin-bottom: 25px;
    position: relative;
    padding-bottom: 15px;
    font-weight: 700;
}

.about-text h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--primary-color);
}

.about-text {
    max-width: 800px;
    margin: 0 auto;
}

.about-text p {
    font-size: 17px;
    margin-bottom: 15px;
    color: var(--text-color);
}

@media (min-width: 768px) {
    /* Kept intentionally empty if other rules are added later or we can just remove the media query entirely if we want */
}

/* ===== PRODUCT CATALOG PAGE ===== */
.products-catalog {
    background-color: var(--bg-light);
}

.product-card {
    display: flex;
    flex-direction: column;
    background: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    margin-bottom: 60px;
}

.product-image {
    width: 100%;
    background: #f9f9f9;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.product-image img {
    max-width: 100%;
    height: auto;
    max-height: 400px;
    object-fit: contain;
}

.product-info-text {
    padding: 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.product-info-text h2 {
    font-size: 32px;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.product-subtitle {
    font-size: 20px;
    color: var(--secondary-color);
    font-weight: 600;
    margin-bottom: 20px;
}

.specs-list {
    list-style: disc;
    margin-left: 20px;
    margin-bottom: 25px;
    color: var(--text-color);
    line-height: 1.6;
}

.specs-list li {
    margin-bottom: 8px;
}

.compatible-list {
    background: var(--bg-light);
    padding: 20px;
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
}

.compatible-list p {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.6;
    margin: 0;
    font-style: italic;
}

.installation-info {
    text-align: center;
    max-width: 800px;
    margin: 80px auto 20px;
    padding: 50px;
    background: white;
    box-shadow: var(--shadow);
    border-radius: var(--border-radius);
}

.installation-info h2 {
    font-size: 32px;
    color: var(--secondary-color);
    margin-bottom: 20px;
}

.installation-info p {
    font-size: 18px;
    color: var(--text-color);
    line-height: 1.8;
}

@media (min-width: 900px) {
    .product-card {
        flex-direction: row;
    }
    
    .product-image {
        width: 40%;
        border-right: 1px solid rgba(0,0,0,0.05);
    }
    
    .product-info-text {
        width: 60%;
        padding: 50px;
    }
}
/* ===== PRODUCT DESCRIPTION PAGE ===== */
.mb-60 { margin-bottom: 60px; }
.mb-80 { margin-bottom: 80px; }
.mt-60 { margin-top: 60px; }

.lead-text {
    font-size: 22px;
    font-weight: 600;
    color: var(--secondary-color);
    line-height: 1.6;
    margin-bottom: 25px;
}

.desc-intro {
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

.desc-intro p {
    font-size: 18px;
    color: var(--text-color);
    line-height: 1.8;
}

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

.desc-block p {
    font-size: 17px;
    color: var(--text-color);
    margin-bottom: 20px;
    line-height: 1.7;
}

.desc-warranty {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.warranty-item {
    background: white;
    padding: 30px;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--shadow);
    border-bottom: 4px solid var(--secondary-gray);
}

.warranty-item.highlight {
    border-color: var(--primary-color);
}

.warranty-item h3 {
    font-size: 40px;
    color: var(--primary-color);
    margin-bottom: 10px;
    font-weight: 700;
}

.warranty-item p {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-color);
    margin: 0;
}

.benefits-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
}

.benefit-card {
    background: white;
    padding: 40px 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    text-align: center;
    transition: transform 0.3s;
}

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

.benefit-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.benefit-card h4 {
    font-size: 20px;
    color: var(--secondary-color);
    margin-bottom: 15px;
}

.benefit-card p {
    color: var(--text-light);
    font-size: 16px;
    line-height: 1.6;
}

.desc-conclusion {
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    padding: 50px;
    background: var(--bg-light);
    border-radius: var(--border-radius);
}

@media (min-width: 900px) {
    .desc-grid {
        grid-template-columns: 3fr 2fr;
        gap: 60px;
        align-items: center;
    }
    .benefits-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1200px) {
    .benefits-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* ===== RESEARCH PAGE ===== */
.research-content {
    background-color: var(--bg-light);
}

.research-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    max-width: 1000px;
    margin: 0 auto;
}

.research-category {
    background: white;
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.research-category h3 {
    font-size: 24px;
    color: var(--primary-color);
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--secondary-gray);
}

.document-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.document-list li {
    margin-bottom: 15px;
}

.document-list li:last-child {
    margin-bottom: 0;
}

.doc-link {
    display: flex;
    align-items: flex-start;
    padding: 15px 20px;
    background: var(--bg-light);
    border-radius: 8px;
    text-decoration: none;
    color: var(--text-color);
    transition: all 0.3s ease;
    border-left: 4px solid transparent;
}

.doc-link:hover {
    background: white;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    border-left-color: var(--primary-color);
    transform: translateX(5px);
}

.doc-link .icon {
    font-size: 24px;
    margin-right: 15px;
    line-height: 1;
}

.doc-link .text {
    flex: 1;
    font-size: 16px;
    font-weight: 500;
    line-height: 1.5;
}

.doc-link .subtext {
    display: block;
    font-size: 14px;
    color: var(--text-light);
    margin-top: 5px;
    font-weight: 400;
}

@media (min-width: 768px) {
    .research-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ===== VIDEOS PAGE ===== */
.videos-content {
    background-color: var(--bg-light);
}

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

.video-card {
    background: white;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.video-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

.video-card h3 {
    font-size: 20px;
    color: var(--primary-color);
    margin-bottom: 20px;
    text-align: center;
}

.video-wrapper {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
    height: 0;
    overflow: hidden;
    border-radius: 8px;
    background-color: #000;
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

@media (min-width: 768px) {
    .video-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .video-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ===== INSTALLATIONS PAGE ===== */
.installations-content {
    background-color: var(--bg-light);
    padding: 60px 0;
}

.installations-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

@media (min-width: 600px) {
    .installations-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 900px) {
    .installations-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.install-card {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    height: 250px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.install-card img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 1;
    transition: transform 0.5s ease;
}

.install-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8), rgba(0,0,0,0.2));
    z-index: 2;
    transition: background 0.3s ease;
}

.install-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.2);
}

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

.install-card:hover::after {
    background: linear-gradient(to top, rgba(0,0,0,0.9), rgba(0,0,0,0.4));
}

.install-card h3 {
    position: relative;
    z-index: 3;
    color: white;
    font-size: 22px;
    font-weight: 700;
    text-align: center;
    padding: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.5);
}

/* ===== INSTALLATIONS GALLERY PAGE (SUBPAGES) ===== */
.gallery-content {
    background-color: var(--bg-light);
    padding: 60px 0;
}

.gallery-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
    margin-bottom: 50px;
    background: white;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

@media (min-width: 768px) {
    .gallery-row {
        grid-template-columns: repeat(2, 1fr);
    }
}

.gallery-image-wrapper {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    background: #f0f0f0;
    aspect-ratio: 4 / 3;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}

.gallery-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.6s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.gallery-image-wrapper:hover .gallery-img {
    transform: scale(1.08);
}

@media (max-width: 768px) {
    .gallery-row {
        flex-direction: column;
    }
}

/* Dedicated Grid for High-Density Galleries (e.g. Cars) */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
    margin-bottom: 30px;
}

.gallery-grid .gallery-image-wrapper {
    margin-bottom: 0;
}

@media (max-width: 1024px) {
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .gallery-grid {
        grid-template-columns: 1fr;
    }
}

/* Examples Section Styles */
.examples-summary {
    padding: 100px 0;
    background: #fdfdfd;
}

.examples-summary-card {
    background: #fff;
    padding: 60px;
    border-radius: 24px;
    box-shadow: 0 40px 80px rgba(0,0,0,0.05);
    text-align: center;
    border: 1px solid #f0f0f0;
}

.power-summary p {
    font-size: 20px;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    padding: 16px 32px;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
    display: inline-block;
}

.btn-outline:hover {
    background: var(--primary-color);
    color: #fff;
    transform: translateY(-2px);
}

/* Examples Table Page Styles */
.examples-table {
    width: 100%;
    border-collapse: collapse;
    margin: 40px 0;
    box-shadow: 0 20px 40px rgba(0,0,0,0.05);
    border-radius: 12px;
    overflow: hidden;
    background: #fff;
}

.examples-table th, .examples-table td {
    padding: 20px 25px;
    text-align: left;
    border-bottom: 1px solid #eee;
}

.examples-table th {
    background-color: var(--secondary-color);
    color: white;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 14px;
    letter-spacing: 1px;
}

.examples-table tbody tr:last-child td {
    border-bottom: none;
}

.examples-table tbody tr:hover {
    background-color: #f9fbf9;
}

.examples-table td strong {
    color: var(--primary-color);
    font-size: 18px;
}

@media (max-width: 768px) {
    .examples-table th, .examples-table td {
        padding: 15px;
        font-size: 14px;
    }
    .examples-summary-card {
        padding: 30px 20px;
    }
    .power-summary p {
        font-size: 16px;
    }
}

/* Warranty Section Styles */
.warranty-feature {
    padding: 100px 0;
    background: #fff;
}

.warranty-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 80px;
    align-items: center;
}

.warranty-title {
    font-size: 36px;
    line-height: 1.2;
    margin-bottom: 25px;
    color: var(--secondary-color);
    font-weight: 800;
}

.warranty-desc {
    font-size: 18px;
    color: var(--text-light);
    margin-bottom: 35px;
    line-height: 1.6;
}

.warranty-image img {
    width: 100%;
    max-width: 300px;
    height: auto;
    display: block;
    margin: 0 auto;
    filter: drop-shadow(0 20px 40px rgba(0,0,0,0.1));
}

/* Warranty Detail Page Styles */
.warranty-details-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    margin-top: 60px;
}

.warranty-card-detail {
    background: #fff;
    padding: 40px;
    border-radius: 24px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.05);
    border: 1px solid #f0f0f0;
    text-align: center;
    transition: transform 0.3s;
}

.warranty-card-detail:hover {
    transform: translateY(-10px);
}

.warranty-icon-large {
    font-size: 64px;
    margin-bottom: 20px;
}

.warranty-card-detail h3 {
    font-size: 24px;
    color: var(--secondary-color);
    margin-bottom: 20px;
    font-weight: 700;
}

.warranty-card-detail p {
    font-size: 16px;
    color: var(--text-light);
    line-height: 1.6;
}

@media (max-width: 900px) {
    .warranty-grid, .warranty-details-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .warranty-image {
        order: -1;
    }
}

/* Reviews Page Styles */
.reviews-section {
    padding: 80px 0;
    background: #fdfdfd;
}

.reviews-filter {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 25px;
    border-radius: 50px;
    border: 1px solid #e0e0e0;
    background: #fff;
    color: var(--text-light);
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s;
}

.filter-btn.active, .filter-btn:hover {
    background: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
    box-shadow: 0 5px 15px rgba(46, 139, 87, 0.2);
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.review-card {
    background: #fff;
    padding: 40px;
    border-radius: 24px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.03);
    border: 1px solid #f0f0f0;
    transition: all 0.3s;
    display: flex;
    flex-direction: column;
}

.review-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 30px 60px rgba(0,0,0,0.08);
}

.review-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 25px;
}

.review-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
    font-size: 20px;
}

.review-meta h4 {
    margin-bottom: 4px;
    color: var(--secondary-color);
}

.review-meta p {
    font-size: 13px;
    color: var(--text-light);
}

.review-rating {
    margin-bottom: 20px;
}

.star {
    color: #FFD700;
    font-size: 18px;
}

.review-text {
    font-style: italic;
    color: var(--text-dark);
    line-height: 1.7;
    margin-bottom: 25px;
    flex-grow: 1;
}

.review-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid #eee;
    padding-top: 20px;
}

.verified-badge {
    color: #2e7d32;
    font-size: 12px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 5px;
}

.verified-badge svg {
    width: 14px;
    height: 14px;
    fill: currentColor;
}

@media (max-width: 1024px) {
    .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .reviews-grid {
        grid-template-columns: 1fr;
    }
    .review-card {
        padding: 30px;
    }
}