:root {
            --primary-red: #E52222;
            --dark-red: #8B0000;
            --black: #000000;
            --dark-gray: #0a0a0a;
            --medium-gray: #1a1a1a;
            --light-gray: #2a2a2a;
            --text-white: #ffffff;
            --text-gray: #b0b0b0;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-tap-highlight-color: transparent;
        }

        body {
            font-family: 'Rajdhani', sans-serif;
            background: var(--black);
            color: var(--text-white);
            overflow-x: hidden;
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

        /* Loading Screen */
        .loading-screen {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: var(--black);
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 99999;
            transition: opacity 0.5s ease;
        }

        .loading-screen.hidden {
            opacity: 0;
            pointer-events: none;
            visibility: hidden;
        }

        .loader {
            width: 100px;
            height: 100px;
            border: 3px solid var(--light-gray);
            border-top: 3px solid var(--primary-red);
            border-radius: 50%;
            animation: spin 1s linear infinite;
        }

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

        /* Top Header Bar */
        .top-header {
            background: var(--black);
            padding: 12px 60px;
            border-bottom: 1px solid var(--light-gray);
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 10000;
            transition: transform 0.3s ease;
        }

        .top-header.hidden {
            transform: translateY(-100%);
        }

        .top-header-content {
            max-width: 1400px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 40px;
        }

        .top-header-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 12px;
            color: var(--text-gray);
            text-decoration: none;
            transition: color 0.3s ease;
        }

        .top-header-item:hover {
            color: var(--primary-red);
        }

        .top-header-item i {
            color: var(--primary-red);
            font-size: 14px;
        }

        /* Navigation */
        nav {
            position: fixed;
            top: 45px;
            width: 100%;
            z-index: 9999;
            padding: 25px 60px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: all 0.3s ease;
        }

        nav.scrolled {
            top: 0;
            background: rgba(0, 0, 0, 0.95);
            padding: 20px 60px;
            box-shadow: 0 5px 30px rgba(229, 34, 34, 0.3);
            backdrop-filter: blur(20px);
        }

        .logo {
            font-family: 'Orbitron', sans-serif;
            font-size: 28px;
            font-weight: 900;
            color: var(--text-white);
            text-decoration: none;
            letter-spacing: 3px;
            text-transform: uppercase;
            position: relative;
            transition: all 0.3s ease;
            z-index: 10001;
        }

        .logo img {
            max-width: 200px;
            height: auto;
        }

        .logo:hover {
            opacity: 0.8;
        }

        .nav-menu {
            display: flex;
            gap: 50px;
            list-style: none;
        }

        .nav-menu a {
            /* color: var(--text-gray); */
            color: #fff; 
            text-decoration: none;
            font-size: 15px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 2px;
            position: relative;
            transition: all 0.3s ease;
            border-bottom: 1px solid #fff;
        }

        .nav-menu a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary-red);
            transition: width 0.3s ease;
            border-bottom: none;
        }

        .nav-menu a:hover {
            color: var(--primary-red);
            border-bottom: none;
        }

        .nav-menu a:hover::after {
            width: 100%;
            border-bottom: none;
        }

        .contact-btn {
            padding: 12px 35px;
            background: var(--primary-red);
            color: var(--text-white);
            text-decoration: none;
            font-weight: 700;
            font-size: 14px;
            text-transform: uppercase;
            letter-spacing: 2px;
            border: 2px solid var(--primary-red);
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .contact-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: var(--text-white);
            transition: left 0.3s ease;
            z-index: -1;
        }

        .contact-btn:hover {
            color: var(--primary-red);
        }

        .contact-btn:hover::before {
            left: 0;
        }

        /* Mobile Menu */
        .mobile-menu-btn {
            display: none;
            flex-direction: column;
            gap: 6px;
            background: transparent;
            border: none;
            cursor: pointer;
            padding: 10px;
            z-index: 10001;
        }

        .mobile-menu-btn span {
            width: 30px;
            height: 3px;
            background: var(--text-white);
            transition: all 0.3s ease;
        }

        .mobile-menu-btn.active span:nth-child(1) {
            transform: rotate(45deg) translate(8px, 8px);
        }

        .mobile-menu-btn.active span:nth-child(2) {
            opacity: 0;
        }

        .mobile-menu-btn.active span:nth-child(3) {
            transform: rotate(-45deg) translate(8px, -8px);
        }

        .mobile-menu {
            position: fixed;
            top: 0;
            right: -100%;
            width: 80%;
            max-width: 400px;
            height: 100vh;
            background: rgba(10, 10, 10, 0.98);
            backdrop-filter: blur(20px);
            padding: 100px 40px 40px;
            z-index: 10000;
            transition: right 0.4s ease;
            overflow-y: auto;
        }

        .mobile-menu.active {
            right: 0;
        }

        .mobile-menu-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            background: rgba(0, 0, 0, 0.8);
            z-index: 9999;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.4s ease;
        }

        .mobile-menu-overlay.active {
            opacity: 1;
            pointer-events: all;
        }

        .mobile-nav-links {
            list-style: none;
            margin-bottom: 40px;
        }

        .mobile-nav-links li {
            margin-bottom: 25px;
        }

        .mobile-nav-links a {
            color: var(--text-white);
            text-decoration: none;
            font-family: 'Orbitron', sans-serif;
            font-size: 20px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 2px;
            display: block;
            padding: 10px 0;
            transition: all 0.3s ease;
        }

        .mobile-nav-links a:hover {
            color: var(--primary-red);
            padding-left: 10px;
        }

        .mobile-contact {
            padding-top: 30px;
            border-top: 1px solid var(--light-gray);
        }

        .mobile-contact-btn {
            display: block;
            width: 100%;
            padding: 18px;
            background: var(--primary-red);
            color: var(--text-white);
            text-align: center;
            text-decoration: none;
            font-family: 'Orbitron', sans-serif;
            font-size: 16px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 2px;
            transition: all 0.3s ease;
        }

        .mobile-contact-btn:hover {
            background: var(--dark-red);
        }

        /* Hexagon Social Buttons - Left Side */
        .hex-social-buttons {
            position: fixed;
            left: 30px;
            top: 50%;
            transform: translateY(-50%);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .hex-btn {
            width: 70px;
            height: 80px;
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            text-decoration: none;
            transition: all 0.3s ease;
        }

        .hex-btn::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(229, 34, 34, 0.2), rgba(139, 0, 0, 0.4));
            clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
            border: 2px solid rgba(229, 34, 34, 0.6);
            transition: all 0.3s ease;
        }

        .hex-btn:hover::before {
            background: linear-gradient(135deg, rgba(229, 34, 34, 0.4), rgba(139, 0, 0, 0.6));
            border-color: var(--primary-red);
            transform: scale(1.1);
        }

        .hex-btn i {
            position: relative;
            z-index: 2;
            font-size: 24px;
            color: var(--text-white);
            transition: all 0.3s ease;
        }

        .hex-btn:hover i {
            color: var(--primary-red);
            transform: scale(1.2);
        }

        /* Hero Section */
        .hero {
            height: 105vh;
            position: relative;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .hero-bg {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 1;
            overflow: hidden;
        }

        .hero-bg video {
            position: absolute;
            top: 50%;
            left: 50%;
            min-width: 100%;
            min-height: 100%;
            width: auto;
            height: auto;
            transform: translate(-50%, -50%);
            object-fit: cover;
        }

        .hero-bg-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            /* background: linear-gradient(135deg, rgba(0,0,0,0.8) 0%, rgba(139,0,0,0.6) 50%, rgba(0,0,0,0.8) 100%); */
            background: linear-gradient(135deg, rgba(0, 0, 0, 0.8) 0%, rgb(51 1 1 / 60%) 50%, rgba(0, 0, 0, 0.8) 100%);
            z-index: 2;
        }

        @keyframes pulse {
            0%, 100% { opacity: 0.3; }
            50% { opacity: 0.8; }
        }

        .hero-content {
            position: relative;
            z-index: 3;  /* 2'den 3'e değiştirin */
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 60px;
            width: 100%;
            bottom: -2vh;
        }

        .hero-badge {
            display: inline-block;
            padding: 10px 25px;
            background: rgba(229, 34, 34, 0.2);
            border: 1px solid var(--primary-red);
            color: var(--primary-red);
            font-family: 'Orbitron', sans-serif;
            font-size: 12px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 3px;
            margin-bottom: 30px;
        }

        .hero-title {
            font-family: 'Orbitron', sans-serif;
            font-size: 85px;
            font-weight: 900;
            line-height: 1.1;
            margin-bottom: 30px;
            text-transform: uppercase;
            letter-spacing: 5px;
        }

        .hero-title span {
            display: block;
            /* background: linear-gradient(135deg, var(--text-white) 0%, var(--primary-red) 100%); */
            background: linear-gradient(135deg, var(--text-white) 0%, #ffffff 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-subtitle {
            font-size: 22px;
            color: var(--text-gray);
            margin-bottom: 25px;
            max-width: 700px;
            letter-spacing: 1px;
        }

        .hero-features {
            list-style: none;
            margin-bottom: 50px;
        }

        .hero-features li {
            padding: 12px 0;
            padding-left: 30px;
            position: relative;
            font-size: 16px;
            color: var(--text-gray);
            letter-spacing: 1px;
        }

        .hero-features li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 15px;
            height: 2px;
            background: var(--primary-red);
        }

        @media (max-width: 760px){

          .hero-features li::before {
              left: -8%;
          }
        }

        .hero-cta-group {
            display: flex;
            gap: 20px;
        }

        .btn-primary {
            padding: 18px 45px;
            background: var(--primary-red);
            color: var(--text-white);
            text-decoration: none;
            font-family: 'Orbitron', sans-serif;
            font-size: 15px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 2px;
            border: 2px solid var(--primary-red);
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .btn-primary::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 0;
            height: 0;
            background: var(--text-white);
            border-radius: 50%;
            transform: translate(-50%, -50%);
            transition: width 0.5s ease, height 0.5s ease;
            z-index: -1;
        }

        /*        .btn-primary:hover::before {
            width: 300%;
            height: 300%;
        }
        */

/*        .btn-primary:hover {
            color: var(--primary-red);
        }*/

        .btn-secondary {
            padding: 18px 45px;
            background: transparent;
            color: var(--text-white);
            text-decoration: none;
            font-family: 'Orbitron', sans-serif;
            font-size: 15px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 2px;
            border: 2px solid var(--text-white);
            transition: all 0.3s ease;
        }

        .btn-secondary:hover {
            background: var(--text-white);
            color: var(--black);
        }

        .scroll-down {
            position: absolute;
            bottom: 50px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 10px;
            color: var(--text-gray);
            font-size: 11px;
            text-transform: uppercase;
            letter-spacing: 2px;
            z-index: 2;
        }

        .scroll-down::after {
            content: '';
            width: 1px;
            height: 50px;
            background: linear-gradient(to bottom, var(--primary-red), transparent);
            animation: scrollMove 2s ease-in-out infinite;
        }

        @keyframes scrollMove {
            0%, 100% { transform: translateY(0); opacity: 1; }
            50% { transform: translateY(20px); opacity: 0.3; }
        }

        /* Stats Banner */
        .stats-banner {
            background: var(--medium-gray);
            padding: 60px 60px;
            position: relative;
            overflow: hidden;
        }

        .stats-banner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(229,34,34,0.1), transparent);
            animation: slideRight 3s ease-in-out infinite;
        }

        @keyframes slideRight {
            0%, 100% { transform: translateX(-100%); }
            50% { transform: translateX(100%); }
        }

        .stats-grid {
            max-width: 1400px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 60px;
            position: relative;
            z-index: 2;
        }

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

        .stat-number {
            font-family: 'Orbitron', sans-serif;
            font-size: 55px;
            font-weight: 900;
            color: var(--primary-red);
            margin-bottom: 10px;
            text-shadow: 0 0 30px rgba(229, 34, 34, 0.5);
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-gray);
            text-transform: uppercase;
            letter-spacing: 2px;
        }

        /* About Section */
        .about-section {
            padding: 140px 60px;
            background: var(--black);
            position: relative;
        }

        .section-header {
            max-width: 1400px;
            margin: 0 auto 100px;
            text-align: center;
        }

        .section-badge {
            display: inline-block;
            padding: 8px 20px;
            background: rgba(229, 34, 34, 0.1);
            border: 1px solid var(--primary-red);
            color: var(--primary-red);
            font-family: 'Orbitron', sans-serif;
            font-size: 11px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 3px;
            margin-bottom: 20px;
        }

        .section-title {
            font-family: 'Orbitron', sans-serif;
            font-size: 65px;
            font-weight: 900;
            margin-bottom: 25px;
            text-transform: uppercase;
            letter-spacing: 5px;
            background: linear-gradient(135deg, var(--text-white) 0%, var(--primary-red) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .section-subtitle {
            font-size: 20px;
            color: var(--text-gray);
            max-width: 800px;
            margin: 0 auto;
            line-height: 1.8;
        }

        .about-content {
            max-width: 1400px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 100px;
            align-items: center;
        }

        .about-image {
            position: relative;
            overflow: hidden;
        }

        .about-image img {
            width: 100%;
            height: 600px;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

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

        .about-image::after {
            content: '';
            position: absolute;
            top: 20px;
            right: 20px;
            bottom: 20px;
            left: 20px;
            border: 2px solid var(--primary-red);
            pointer-events: none;
            transition: all 0.3s ease;
        }

        .about-image:hover::after {
            top: 0;
            right: 0;
            bottom: 0;
            left: 0;
        }

        .about-text h3 {
            font-family: 'Orbitron', sans-serif;
            font-size: 35px;
            font-weight: 700;
            margin-bottom: 30px;
            color: var(--primary-red);
            text-transform: uppercase;
            letter-spacing: 2px;
        }

        .about-text p {
            font-size: 17px;
            line-height: 1.9;
            color: var(--text-gray);
            margin-bottom: 20px;
        }

        .about-highlights {
            margin-top: 40px;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .highlight-item {
            padding: 25px;
            background: var(--medium-gray);
            border-left: 3px solid var(--primary-red);
            transition: all 0.3s ease;
        }

        .highlight-item:hover {
            background: var(--light-gray);
            transform: translateX(10px);
        }

        .highlight-item strong {
            display: block;
            font-size: 16px;
            color: var(--text-white);
            margin-bottom: 5px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .highlight-item span {
            font-size: 14px;
            color: var(--text-gray);
        }

        /* Products Section */
        .products-section {
            padding: 140px 60px;
            background: linear-gradient(180deg, var(--black) 0%, var(--dark-gray) 100%);
            position: relative;
        }

        .products-grid {
            max-width: 1400px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 40px;
        }

        .product-card {
            background: var(--medium-gray);
            position: relative;
            overflow: hidden;
            border: 1px solid var(--light-gray);
            transition: all 0.5s ease;
        }

        .product-card::before {
            content: '';
            position: absolute;
            top: -100%;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(180deg, rgba(229,34,34,0.3), transparent);
            transition: top 0.5s ease;
        }

        .product-card:hover::before {
            top: 0;
        }

        .product-card:hover {
            transform: translateY(-15px);
            border-color: var(--primary-red);
            box-shadow: 0 30px 60px rgba(229, 34, 34, 0.4);
        }

        .product-image {
            width: 100%;
            height: 350px;
            overflow: hidden;
            position: relative;
        }

        .product-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .product-card:hover .product-image img {
            transform: scale(1.15);
        }

        .product-info {
            padding: 40px;
        }

        .product-category {
            font-family: 'Orbitron', sans-serif;
            font-size: 11px;
            color: var(--primary-red);
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 15px;
        }

        .product-name {
            font-family: 'Orbitron', sans-serif;
            font-size: 26px;
            font-weight: 700;
            margin-bottom: 20px;
            text-transform: uppercase;
            letter-spacing: 2px;
        }

        .product-desc {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-gray);
            margin-bottom: 25px;
        }

        .product-specs {
            list-style: none;
            margin-bottom: 30px;
        }

        .product-specs li {
            padding: 8px 0;
            padding-left: 25px;
            position: relative;
            font-size: 14px;
            color: var(--text-gray);
        }

        .product-specs li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 8px;
            height: 8px;
            background: var(--primary-red);
            clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
        }

        .product-link {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 12px 30px;
            background: transparent;
            border: 2px solid var(--primary-red);
            color: var(--primary-red);
            text-decoration: none;
            font-family: 'Orbitron', sans-serif;
            font-size: 12px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 2px;
            transition: all 0.3s ease;
        }

        .product-link:hover {
            background: var(--primary-red);
            color: var(--text-white);
        }

        /* Fire Curtain Showcase */
        .curtain-showcase {
            padding: 140px 60px;
            background: var(--black);
            position: relative;
            overflow: hidden;
        }

        .curtain-showcase::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: radial-gradient(circle at 50% 50%, rgba(229,34,34,0.15) 0%, transparent 70%);
        }

        .curtain-container {
            max-width: 1600px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 100px;
            align-items: center;
            position: relative;
            z-index: 2;
        }

        .curtain-visual {
            position: relative;
            height: 700px;
        }

        .curtain-frame {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            border: 3px solid var(--primary-red);
            overflow: hidden;
            box-shadow: 0 0 50px rgba(229, 34, 34, 0.5);
        }

        .curtain-bg {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('http://imfire.per10.net/images/smoke-curtains-1.png') center/cover no-repeat;
            filter: grayscale(50%);
        }

        .curtain-drop {
            position: absolute;
            top: -100%;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(180deg, 
                rgba(229, 34, 34, 0.95) 0%,
                rgba(229, 34, 34, 0.7) 30%,
                rgba(229, 34, 34, 0.4) 60%,
                rgba(229, 34, 34, 0.1) 100%
            );
            backdrop-filter: blur(2px);
            animation: curtainAnimation 4s ease-in-out infinite;
        }

        @keyframes curtainAnimation {
            0% { top: -100%; }
            40% { top: 0%; }
            60% { top: 0%; }
            100% { top: 100%; }
        }

        .curtain-info h2 {
            font-family: 'Orbitron', sans-serif;
            font-size: 55px;
            font-weight: 900;
            margin-bottom: 35px;
            text-transform: uppercase;
            letter-spacing: 3px;
            line-height: 1.2;
        }

        .curtain-info h2 span {
            display: block;
            color: var(--primary-red);
        }

        .curtain-info p {
            font-size: 17px;
            line-height: 1.9;
            color: var(--text-gray);
            margin-bottom: 25px;
        }

        .curtain-specs {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 25px;
            margin: 50px 0;
        }

        .spec-box {
            padding: 30px;
            background: linear-gradient(135deg, var(--medium-gray) 0%, var(--light-gray) 100%);
            border: 1px solid var(--light-gray);
            border-left: 4px solid var(--primary-red);
            transition: all 0.3s ease;
        }

        .spec-box:hover {
            transform: scale(1.05);
            box-shadow: 0 20px 40px rgba(229, 34, 34, 0.3);
        }

        .spec-value {
            font-family: 'Orbitron', sans-serif;
            font-size: 40px;
            font-weight: 900;
            color: var(--primary-red);
            margin-bottom: 8px;
            text-shadow: 0 0 20px rgba(229, 34, 34, 0.5);
        }

        .spec-label {
            font-size: 13px;
            color: var(--text-gray);
            text-transform: uppercase;
            letter-spacing: 2px;
        }

        /* Certifications & Video References */
        .cert-section {
            padding: 140px 60px;
            background: var(--black);
        }

        .cert-container {
            max-width: 1400px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1fr 1.5fr;
            gap: 60px;
            align-items: start;
        }

        .cert-list-wrapper h3 {
            font-family: 'Orbitron', sans-serif;
            font-size: 32px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 40px;
            color: var(--primary-red);
        }

        .cert-list {
                height: 50vh;
                overflow-y: scroll;
            display: grid;
            gap: 20px;
        }

        .cert-list-item {
            padding: 25px 30px;
            background: var(--medium-gray);
            border-left: 4px solid var(--primary-red);
            display: flex;
            align-items: center;
            gap: 20px;
            transition: all 0.3s ease;
        }

        .cert-list-item:hover {
            background: var(--light-gray);
            transform: translateX(10px);
        }

        .cert-list-icon {
            width: 50px;
            height: 50px;
            background: var(--primary-red);
            clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--text-white);
            flex-shrink: 0;
        }

        .cert-list-name {
            font-family: 'Orbitron', sans-serif;
            font-size: 15px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .video-refs-wrapper h3 {
            font-family: 'Orbitron', sans-serif;
            font-size: 32px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 40px;
            color: var(--primary-red);
        }

        .video-refs-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 25px;
        }

        .video-ref-item {
            aspect-ratio: 16/9;
            position: relative;
            overflow: hidden;
            border: 2px solid var(--light-gray);
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .video-ref-item:hover {
            border-color: var(--primary-red);
            transform: scale(1.02);
        }

        .video-ref-bg {
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, var(--medium-gray) 0%, var(--light-gray) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .video-ref-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(229, 34, 34, 0.8), rgba(139, 0, 0, 0.6));
            display: flex;
            align-items: center;
            justify-content: center;
            transition: opacity 0.3s ease;
        }

        .video-ref-item:hover .video-ref-overlay {
            opacity: 0;
        }

        .video-ref-play {
            width: 70px;
            height: 70px;
            background: rgba(255, 255, 255, 0.9);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s ease;
        }

        .video-ref-item:hover .video-ref-play {
            background: var(--primary-red);
            transform: scale(1.2);
        }

        .video-ref-play::after {
            content: '';
            width: 0;
            height: 0;
            border-top: 12px solid transparent;
            border-bottom: 12px solid transparent;
            border-left: 18px solid var(--black);
            margin-left: 5px;
            transition: all 0.3s ease;
        }

        .video-ref-item:hover .video-ref-play::after {
            border-left-color: var(--text-white);
        }

        /* References */
        .references-section {
            padding: 140px 60px;
            background: linear-gradient(135deg, var(--dark-gray) 0%, var(--black) 100%);
        }

        .references-showcase {
            max-width: 1600px;
            margin: 80px auto 0;
            position: relative;
            height: 700px;
        }

        .references-main {
            width: 100%;
            height: 100%;
            position: relative;
            overflow: hidden;
        }

        .reference-item {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            opacity: 1;
        }

        .reference-bg {
            width: 100%;
            height: 100%;
            background: url('http://imfire.per10.net/images/grand-kremlin.jpg') center/cover no-repeat;
            position: relative;
        }

        .reference-bg::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(to right, rgba(0,0,0,0.9) 0%, transparent 100%);
        }

        .reference-content {
            position: absolute;
            bottom: 80px;
            left: 80px;
            max-width: 600px;
        }

        .reference-tag {
            display: inline-block;
            padding: 8px 20px;
            background: var(--primary-red);
            color: var(--text-white);
            font-family: 'Orbitron', sans-serif;
            font-size: 11px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 20px;
        }

        .reference-title {
            font-family: 'Orbitron', sans-serif;
            font-size: 45px;
            font-weight: 900;
            margin-bottom: 20px;
            text-transform: uppercase;
            letter-spacing: 3px;
        }

        .reference-desc {
            font-size: 17px;
            line-height: 1.8;
            color: var(--text-gray);
            margin-bottom: 30px;
        }

        /* Fire Protection CTA */
        .fire-cta-section {
            padding: 100px 60px;
            background: var(--dark-gray);
            position: relative;
            overflow: hidden;
        }

        .fire-cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 200%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(229, 34, 34, 0.1), transparent);
            animation: slideCTA 3s ease-in-out infinite;
        }

        @keyframes slideCTA {
            0% { left: -100%; }
            100% { left: 100%; }
        }

        .fire-cta-content {
            max-width: 1400px;
            margin: 0 auto;
            text-align: center;
            position: relative;
            z-index: 2;
        }

        .fire-cta-title {
            font-family: 'Orbitron', sans-serif;
            font-size: 50px;
            font-weight: 900;
            text-transform: uppercase;
            letter-spacing: 3px;
            margin-bottom: 40px;
            background: linear-gradient(135deg, var(--text-white) 0%, var(--primary-red) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .fire-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 15px;
            padding: 20px 60px;
            background: linear-gradient(135deg, var(--primary-red) 0%, var(--dark-red) 100%);
            color: var(--text-white);
            text-decoration: none;
            font-family: 'Orbitron', sans-serif;
            font-size: 18px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 2px;
            border: none;
            transition: all 0.3s ease;
            box-shadow: 0 10px 30px rgba(229, 34, 34, 0.4);
            position: relative;
            overflow: hidden;
        }

        .fire-cta-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
            transition: left 0.5s ease;
        }

        .fire-cta-btn:hover::before {
            left: 100%;
        }

        .fire-cta-btn:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 40px rgba(229, 34, 34, 0.6);
        }

        .fire-cta-btn i {
            font-size: 22px;
        }

        /* Contact Section */
        .contact-section {
            padding: 140px 60px;
            background: var(--black);
        }

        .contact-container {
            max-width: 1400px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 100px;
        }

        .contact-info h3 {
            font-family: 'Orbitron', sans-serif;
            font-size: 35px;
            font-weight: 700;
            margin-bottom: 40px;
            text-transform: uppercase;
            letter-spacing: 2px;
        }

        .info-grid {
            display: grid;
            gap: 30px;
        }

        .info-item {
            padding: 30px;
            background: var(--medium-gray);
            border-left: 4px solid var(--primary-red);
            transition: all 0.3s ease;
        }

        .info-item:hover {
            background: var(--light-gray);
            transform: translateX(10px);
        }

        .info-label {
            font-family: 'Orbitron', sans-serif;
            font-size: 12px;
            color: var(--primary-red);
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 10px;
        }

        .info-value {
            font-size: 18px;
            color: var(--text-white);
            font-weight: 600;
        }

        .contact-form {
            padding: 60px;
            background: var(--medium-gray);
            border: 1px solid var(--light-gray);
        }

        .form-group {
            margin-bottom: 25px;
        }

        .form-group label {
            display: block;
            font-family: 'Orbitron', sans-serif;
            font-size: 12px;
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 10px;
            color: var(--text-gray);
        }

        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 15px 20px;
            background: var(--dark-gray);
            border: 1px solid var(--light-gray);
            color: var(--text-white);
            font-family: 'Rajdhani', sans-serif;
            font-size: 16px;
            transition: all 0.3s ease;
            -webkit-appearance: none;
        }

        .form-group input:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: var(--primary-red);
            box-shadow: 0 0 20px rgba(229, 34, 34, 0.3);
        }

        .form-group textarea {
            resize: vertical;
            min-height: 150px;
        }

        .submit-btn {
            width: 100%;
            padding: 18px;
            background: var(--primary-red);
            border: none;
            color: var(--text-white);
            font-family: 'Orbitron', sans-serif;
            font-size: 14px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 3px;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .submit-btn:hover {
            background: var(--dark-red);
            transform: translateY(-3px);
            box-shadow: 0 10px 30px rgba(229, 34, 34, 0.5);
        }

        /* Footer */
        footer {
            padding: 80px 60px 40px;
            background: var(--medium-gray);
        }

        .footer-content {
            max-width: 1400px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 60px;
            margin-bottom: 60px;
        }

        .footer-brand {
            max-width: 400px;
        }

        .footer-logo {
            font-family: 'Orbitron', sans-serif;
            font-size: 32px;
            font-weight: 900;
            margin-bottom: 25px;
            text-transform: uppercase;
            letter-spacing: 3px;
        }

        .footer-logo img {
            max-width: 200px;
            height: auto;
        }

        .footer-desc {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-gray);
            margin-bottom: 30px;
        }

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

        .social-link {
            width: 45px;
            height: 45px;
            background: var(--dark-gray);
            border: 1px solid var(--light-gray);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-white);
            text-decoration: none;
            transition: all 0.3s ease;
        }

        .social-link:hover {
            background: var(--primary-red);
            border-color: var(--primary-red);
            transform: translateY(-5px);
        }

        .footer-column h4 {
            font-family: 'Orbitron', sans-serif;
            font-size: 16px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 25px;
        }

        .footer-links {
            list-style: none;
        }

        .footer-links li {
            margin-bottom: 12px;
        }

        .footer-links a {
            color: var(--text-gray);
            text-decoration: none;
            font-size: 14px;
            transition: all 0.3s ease;
        }

        .footer-links a:hover {
            color: var(--primary-red);
            padding-left: 10px;
        }

        .footer-bottom {
            max-width: 1400px;
            margin: 0 auto;
            padding-top: 40px;
            border-top: 1px solid var(--light-gray);
            text-align: center;
            color: var(--text-gray);
            font-size: 13px;
        }

        /* Responsive */
        @media (max-width: 1200px) {
            nav {
                padding: 20px 40px;
            }

            section {
                padding: 100px 40px;
            }

            .hero-title {
                font-size: 65px;
            }

            .section-title {
                font-size: 55px;
            }
        }

        @media (max-width: 1024px) {
            .top-header {
                padding: 10px 30px;
            }

            nav {
                top: 40px;
                padding: 20px 30px;
            }

            .hex-social-buttons {
                left: 15px;
                gap: 15px;
            }

            .hex-btn {
                width: 60px;
                height: 70px;
            }

            .hex-btn i {
                font-size: 20px;
            }

            section {
                padding: 80px 30px;
            }

            .hero-title {
                font-size: 55px;
            }

            .section-title {
                font-size: 45px;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 40px;
            }

            .about-content,
            .curtain-container,
            .contact-container {
                grid-template-columns: 1fr;
                gap: 60px;
            }

            .products-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 30px;
            }

            .curtain-visual {
                height: 500px;
            }

            .footer-content {
                grid-template-columns: repeat(2, 1fr);
                gap: 40px;
            }

            .references-showcase {
                height: 600px;
            }

            .reference-content {
                bottom: 60px;
                left: 60px;
            }

            .fire-cta-title {
                font-size: 38px;
            }

            .cert-container {
                grid-template-columns: 1fr;
                gap: 50px;
            }

            .video-refs-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .top-header {
                padding: 8px 20px;
            }

            .top-header-content {
                flex-direction: column;
                gap: 8px;
                align-items: flex-start;
            }

            .top-header-item {
                font-size: 10px;
            }

            nav {
                top: 0;
                padding: 18px 20px;
            }

            .nav-menu,
            .contact-btn {
                display: none;
            }

            .mobile-menu-btn {
                display: flex;
            }

            .hex-social-buttons {
                display: none;
            }

            section {
                padding: 60px 20px;
            }

            .hero {
                min-height: 100vh;
                padding-top: 80px;
            }

            .hero-content {
                padding: 0 20px;
            }

            .hero-badge {
                font-size: 10px;
                padding: 8px 20px;
                margin-bottom: 20px;
            }

            .hero-title {
                font-size: 38px;
                margin-bottom: 20px;
                letter-spacing: 2px;
            }

            .hero-subtitle {
                font-size: 16px;
                margin-bottom: 20px;
            }

            .hero-features {
                margin-bottom: 30px;
            }

            .hero-features li {
                font-size: 13px;
                padding: 8px 0;
            }

            .hero-cta-group {
                flex-direction: column;
                gap: 15px;
            }

            .btn-primary,
            .btn-secondary {
                width: 100%;
                text-align: center;
                padding: 16px 30px;
                font-size: 13px;
            }

            .scroll-down {
                bottom: 30px;
                font-size: 10px;
            }

            .stats-banner {
                padding: 40px 20px;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 30px;
            }

            .stat-number {
                font-size: 40px;
            }

            .stat-label {
                font-size: 12px;
            }

            .about-section {
                padding: 80px 20px;
            }

            .section-badge {
                font-size: 10px;
                padding: 6px 15px;
            }

            .section-title {
                font-size: 32px;
                margin-bottom: 20px;
                letter-spacing: 2px;
            }

            .section-subtitle {
                font-size: 16px;
                margin-bottom: 50px;
            }

            .about-image img {
                height: 400px;
            }

            .about-text h3 {
                font-size: 26px;
                margin-bottom: 20px;
            }

            .about-text p {
                font-size: 15px;
            }

            .about-highlights {
                grid-template-columns: 1fr;
                gap: 15px;
                margin-top: 30px;
            }

            .highlight-item {
                padding: 20px;
            }

            .products-section {
                padding: 80px 20px;
            }

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

            .product-image {
                height: 250px;
            }

            .product-info {
                padding: 30px 25px;
            }

            .product-name {
                font-size: 22px;
            }

            .product-desc {
                font-size: 14px;
            }

            .curtain-showcase {
                padding: 80px 20px;
            }

            .curtain-visual {
                height: 400px;
                margin-bottom: 40px;
            }

            .curtain-info h2 {
                font-size: 32px;
                margin-bottom: 25px;
            }

            .curtain-info p {
                font-size: 15px;
                margin-bottom: 20px;
            }

            .curtain-specs {
                grid-template-columns: repeat(2, 1fr);
                gap: 15px;
                margin: 35px 0;
            }

            .spec-box {
                padding: 20px;
            }

            .spec-value {
                font-size: 30px;
            }

            .spec-label {
                font-size: 11px;
            }

            .cert-section {
                padding: 80px 20px;
            }

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

            .cert-list-wrapper h3,
            .video-refs-wrapper h3 {
                font-size: 24px;
                margin-bottom: 30px;
            }

            .cert-list-item {
                padding: 20px;
            }

            .cert-list-icon {
                width: 40px;
                height: 40px;
                font-size: 16px;
            }

            .cert-list-name {
                font-size: 13px;
            }

            .video-refs-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .fire-cta-section {
                padding: 60px 20px;
            }

            .fire-cta-title {
                font-size: 28px;
                margin-bottom: 30px;
            }

            .fire-cta-btn {
                padding: 16px 40px;
                font-size: 14px;
            }

            .fire-cta-btn i {
                font-size: 18px;
            }

            .references-section {
                padding: 80px 20px;
            }

            .references-showcase {
                height: 500px;
                margin-top: 50px;
            }

            .reference-content {
                bottom: 40px;
                left: 20px;
                right: 20px;
                max-width: 100%;
            }

            .reference-tag {
                font-size: 10px;
                padding: 6px 15px;
            }

            .reference-title {
                font-size: 28px;
                margin-bottom: 15px;
            }

            .reference-desc {
                font-size: 14px;
                margin-bottom: 20px;
            }

            .contact-section {
                padding: 80px 20px;
            }

            .contact-info h3 {
                font-size: 26px;
                margin-bottom: 30px;
            }

            .info-grid {
                gap: 20px;
            }

            .info-item {
                padding: 20px;
            }

            .info-label {
                font-size: 11px;
            }

            .info-value {
                font-size: 15px;
            }

            .contact-form {
                padding: 40px 25px;
            }

            .form-group {
                margin-bottom: 20px;
            }

            .form-group label {
                font-size: 11px;
            }

            .form-group input,
            .form-group textarea {
                padding: 12px 15px;
                font-size: 14px;
            }

            .submit-btn {
                padding: 16px;
                font-size: 13px;
            }

            footer {
                padding: 60px 20px 30px;
            }

            .footer-content {
                grid-template-columns: 1fr;
                gap: 40px;
                margin-bottom: 40px;
            }

            .footer-logo {
                font-size: 28px;
            }

            .footer-desc {
                font-size: 14px;
            }

            .footer-column h4 {
                font-size: 15px;
                margin-bottom: 20px;
            }

            .footer-links a {
                font-size: 13px;
            }

            .footer-bottom {
                font-size: 12px;
                padding-top: 30px;
            }
        }

        @media (max-width: 480px) {
            .hero-title {
                font-size: 32px;
                letter-spacing: 1px;
            }

            .section-title {
                font-size: 28px;
            }

            .stats-grid {
                grid-template-columns: 1fr;
                gap: 25px;
            }

            .stat-number {
                font-size: 36px;
            }

            .curtain-specs {
                grid-template-columns: 1fr;
            }

            .spec-box {
                padding: 20px 15px;
            }

            .hero-cta-group {
                width: 100%;
            }

            .btn-primary,
            .btn-secondary {
                font-size: 12px;
                padding: 14px 25px;
            }

            .reference-title {
                font-size: 24px;
            }

            .curtain-info h2 {
                font-size: 28px;
            }
        }




            .smoke-curtain {
                animation: smokeDescend 3s ease-in-out infinite;
                transform-origin: top center;
            }

            @keyframes smokeDescend {
                0% {
                    transform: translateY(-100%);
                    opacity: 0;
                }
                20% {
                    opacity: 1;
                }
                80% {
                    opacity: 1;
                }
                99% {
                    transform: translateY(-1%);
                    opacity: 1;
                }
                100% {
                    transform: translateY(0%);
                    opacity: 0.4;
                }
            }

            .escalator-step {
              animation: escalatorMove 3s linear infinite;
            }

            @keyframes escalatorMove {
              0%, 100% {
                opacity: 0.6;
              }
              50% {
                opacity: 1;
              }
            }