/* Reset and base styles */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #fafaf9;
        }

        /* Container */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1rem;
        }

        /* Header */
        .header {
            background-color: #292524;
            color: white;
            position: sticky;
            top: 0;
            z-index: 50;
        }

        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
        }

        .logo {
            font-size: 1.5rem;
            font-weight: bold;
        }

        .logo span {
            color: #f59e0b;
        }

        .nav-desktop {
            display: none;
        }

        .nav-desktop a {
            color: white;
            text-decoration: none;
            margin-left: 2rem;
            transition: color 0.3s;
        }

        .nav-desktop a:hover {
            color: #fbbf24;
        }

        .menu-btn {
            display: block;
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
        }

        .nav-mobile {
            display: none;
            background-color: #44403c;
            padding: 1rem;
        }

        .nav-mobile.active {
            display: block;
        }

        .nav-mobile a {
            display: block;
            color: white;
            text-decoration: none;
            padding: 0.75rem 0;
            transition: color 0.3s;
        }

        .nav-mobile a:hover {
            color: #fbbf24;
        }

        /* Hero Section */
        .hero {
            position: relative;
            background-color: #1c1917;
            color: white;
            min-height: 80vh;
            display: flex;
            align-items: center;
        }

        .hero-bg {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: url('https://images.unsplash.com/photo-1518457607834-6e8d80c183c5?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=1674&q=80');
            background-size: cover;
            background-position: center;
            opacity: 0.4;
        }

        .hero-content {
            position: relative;
            z-index: 10;
            max-width: 32rem;
        }

        .hero h2 {
            font-size: 3rem;
            font-weight: bold;
            margin-bottom: 1rem;
        }

        .hero p {
            font-size: 1.25rem;
            margin-bottom: 2rem;
        }

        .hero-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
        }

        .btn-primary {
            background-color: #f59e0b;
            color: #1c1917;
            padding: 0.75rem 1.5rem;
            text-decoration: none;
            border-radius: 0.375rem;
            font-weight: 600;
            transition: background-color 0.3s;
        }

        .btn-primary:hover {
            background-color: #d97706;
        }

        .btn-secondary {
            background-color: transparent;
            color: white;
            border: 2px solid white;
            padding: 0.75rem 1.5rem;
            text-decoration: none;
            border-radius: 0.375rem;
            font-weight: 600;
            transition: all 0.3s;
        }

        .btn-secondary:hover {
            background-color: white;
            color: #1c1917;
        }

        /* Materials Section */
        .materials {
            padding: 4rem 0;
            background-color: white;
        }

        .section-header {
            text-align: center;
            margin-bottom: 3rem;
        }

        .section-header h2 {
            font-size: 1.875rem;
            font-weight: bold;
            margin-bottom: 0.5rem;
        }

        .section-header p {
            font-size: 1.125rem;
            color: #6b7280;
            max-width: 32rem;
            margin: 0 auto;
        }

        .materials-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin-bottom: 3rem;
        }

        .material-card {
            background-color: #fafaf9;
            border-radius: 0.5rem;
            overflow: hidden;
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
            transition: box-shadow 0.3s;
        }

        .material-card:hover {
            box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
        }

        .material-image {
            height: 16rem;
            overflow: hidden;
        }

        .material-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s;
        }

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

        .material-content {
            padding: 1.5rem;
        }

        .material-content h3 {
            font-size: 1.25rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
        }

        .material-content p {
            color: #6b7280;
            margin-bottom: 1rem;
        }

        .material-link {
            color: #d97706;
            font-weight: 500;
            text-decoration: none;
            transition: color 0.3s;
        }

        .material-link:hover {
            color: #92400e;
        }

        .cta-button {
            text-align: center;
        }

        .btn-dark {
            background-color: #292524;
            color: white;
            padding: 0.75rem 1.5rem;
            text-decoration: none;
            border-radius: 0.375rem;
            font-weight: 600;
            transition: background-color 0.3s;
            display: inline-block;
        }

        .btn-dark:hover {
            background-color: #1c1917;
        }

        /* About Section */
        .about {
            padding: 4rem 0;
            background-color: #f5f5f4;
        }

        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
        }

        .about-content h2 {
            font-size: 1.875rem;
            font-weight: bold;
            margin-bottom: 1.5rem;
        }

        .about-content p {
            font-size: 1.125rem;
            color: #374151;
            margin-bottom: 1rem;
        }

        .feature {
            display: flex;
            align-items: flex-start;
            margin-bottom: 1rem;
        }

        .feature-icon {
            background-color: #f59e0b;
            padding: 0.5rem;
            border-radius: 0.375rem;
            margin-right: 1rem;
            color: white;
            width: 2.5rem;
            height: 2.5rem;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .feature-content h3 {
            font-size: 1.25rem;
            font-weight: 600;
            margin-bottom: 0.25rem;
        }

        .feature-content p {
            color: #6b7280;
            font-size: 1rem;
        }

        .about-image {
            position: relative;
        }

        .about-image img {
            width: 100%;
            height: auto;
            border-radius: 0.5rem;
            box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
        }

        .about-image::before,
        .about-image::after {
            content: '';
            position: absolute;
            width: 10rem;
            height: 10rem;
            border-radius: 0.5rem;
            z-index: -1;
        }

        .about-image::before {
            background-color: #f59e0b;
            bottom: -1.25rem;
            left: -1.25rem;
        }

        .about-image::after {
            background-color: #292524;
            top: -1.25rem;
            right: -1.25rem;
        }

        /* Contact Section */
        .contact {
            padding: 4rem 0;
            background-color: white;
        }

        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
        }

        .contact-form {
            background-color: #fafaf9;
            padding: 2rem;
            border-radius: 0.5rem;
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
        }

        .contact-form h3 {
            font-size: 1.5rem;
            font-weight: 600;
            margin-bottom: 1.5rem;
        }

        .form-group {
            margin-bottom: 1.5rem;
        }

        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
        }

        .form-group label {
            display: block;
            color: #374151;
            margin-bottom: 0.5rem;
        }

        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 0.5rem 1rem;
            border: 1px solid #d1d5db;
            border-radius: 0.375rem;
            font-size: 1rem;
        }

        .form-group input:focus,
        .form-group textarea:focus {
            outline: none;
            box-shadow: 0 0 0 2px #f59e0b;
        }

        .contact-info {
            background-color: #292524;
            color: white;
            padding: 2rem;
            border-radius: 0.5rem;
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
            margin-bottom: 2rem;
        }

        .contact-info h3 {
            font-size: 1.5rem;
            font-weight: 600;
            margin-bottom: 1.5rem;
        }

        .contact-item {
            display: flex;
            align-items: flex-start;
            margin-bottom: 1rem;
        }

        .contact-icon {
            color: #f59e0b;
            margin-right: 1rem;
            width: 1.5rem;
            height: 1.5rem;
        }

        .contact-text h4 {
            font-weight: 500;
            margin-bottom: 0.25rem;
        }

        .contact-text p {
            color: #d1d5db;
        }

        .contact-image img {
            width: 100%;
            height: auto;
            border-radius: 0.5rem;
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
        }

        /* Footer */
        .footer {
            background-color: #292524;
            color: white;
            padding: 3rem 0 1rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }

        .footer-section h3 {
            font-size: 1.25rem;
            font-weight: bold;
            margin-bottom: 1rem;
        }

        .footer-section h3 span {
            color: #f59e0b;
        }

        .footer-logo {
            margin-bottom: 1rem;
        }

        .footer-logo img {
            height: 50px;
            width: auto;
        }

        .footer-section p {
            color: #9ca3af;
            margin-bottom: 1rem;
        }

        .footer-section ul {
            list-style: none;
        }

        .footer-section ul li {
            margin-bottom: 0.5rem;
        }

        .footer-section ul li a {
            color: #9ca3af;
            text-decoration: none;
            transition: color 0.3s;
        }

        .footer-section ul li a:hover {
            color: #fbbf24;
        }

        .footer-bottom {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid #44403c;
            color: #6b7280;
        }

        /* Responsive Design */
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }

            .menu-btn {
                display: block;
            }

            .hero h2 {
                font-size: 2rem;
            }

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

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

            .form-row {
                grid-template-columns: 1fr;
            }

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

        @media (min-width: 769px) {
            .nav-desktop {
                display: flex;
            }

            .menu-btn {
                display: none;
            }
        }

        /* Utility classes */
        .text-center {
            text-align: center;
        }

        .mb-4 {
            margin-bottom: 1rem;
        }

        .mb-8 {
            margin-bottom: 2rem;
        }