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

        body {
            font-family: 'Plus Jakarta Sans', sans-serif;
            background-color: #ffffff;
            color: #1a1a1a;
            line-height: 1.6;
        }

        /* Header */
        header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            padding: 1.25rem 2rem;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid #f0f0f0;
        }

        .header-content {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            font-size: 1.25rem;
            font-weight: 700;
            color: #1a1a1a;
            text-decoration: none;
        }

        .contact-btn {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.625rem 1.25rem;
            background: #1a1a1a;
            color: #ffffff;
            border-radius: 8px;
            font-size: 0.875rem;
            font-weight: 600;
            text-decoration: none;
            transition: background 0.2s ease;
        }

        .contact-btn:hover {
            background: #333;
        }

        .contact-btn svg {
            width: 16px;
            height: 16px;
        }

        /* Hero */
        .hero {
            padding: 8rem 2rem 4rem;
            text-align: center;
            max-width: 700px;
            margin: 0 auto;
        }

        .hero h1 {
            font-size: 2.5rem;
            font-weight: 700;
            color: #1a1a1a;
            margin-bottom: 1rem;
            letter-spacing: -0.5px;
        }

        .hero p {
            font-size: 1.125rem;
            color: #666;
        }

        /* Filter */
        .filter-section {
            padding: 0 2rem 2rem;
            max-width: 1200px;
            margin: 0 auto;
        }

        .filter-container {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 0.5rem;
        }

        .filter-btn {
            padding: 0.5rem 1rem;
            border-radius: 100px;
            font-size: 0.875rem;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.2s ease;
            border: 1px solid #e5e5e5;
            background: #fff;
            color: #666;
        }

        .filter-btn:hover {
            border-color: #ccc;
            color: #1a1a1a;
        }

        .filter-btn.active {
            background: #1a1a1a;
            border-color: #1a1a1a;
            color: #fff;
        }

        /* Gallery */
        .gallery {
            padding: 1rem 2rem 4rem;
            max-width: 1200px;
            margin: 0 auto;
        }

        .gallery-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
            gap: 1.5rem;
        }

        /* Card */
        .demo-card {
            background: #fff;
            border-radius: 12px;
            overflow: hidden;
            border: 1px solid #e5e5e5;
            transition: all 0.3s ease;
        }

        .demo-card:hover {
            border-color: #ccc;
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
            transform: translateY(-4px);
        }

        .card-image {
            position: relative;
            height: 220px;
            overflow: hidden;
            background: #f8f8f8;
        }

        .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .demo-card:hover .card-image img {
            transform: scale(1.03);
        }

        .placeholder-img {
            width: 100%;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: center;
            background: #f5f5f5;
            color: #ccc;
            font-size: 3rem;
        }

        .card-badge {
            position: absolute;
            top: 0.75rem;
            left: 0.75rem;
            padding: 0.25rem 0.625rem;
            background: #1a1a1a;
            border-radius: 6px;
            font-size: 0.7rem;
            font-weight: 600;
            color: #fff;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .card-content {
            padding: 1.25rem;
        }

        .card-category {
            font-size: 0.75rem;
            font-weight: 600;
            color: #999;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 0.375rem;
        }

        .card-title {
            font-size: 1.125rem;
            font-weight: 700;
            color: #1a1a1a;
            margin-bottom: 0.5rem;
        }

        .card-description {
            font-size: 0.875rem;
            color: #666;
            margin-bottom: 1rem;
            line-height: 1.5;
        }

        .card-footer {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 1rem;
            border-top: 1px solid #f0f0f0;
        }

        .card-features {
            display: flex;
            flex-wrap: wrap;
            gap: 0.375rem;
        }

        .feature-tag {
            padding: 0.25rem 0.5rem;
            background: #f5f5f5;
            border-radius: 4px;
            font-size: 0.7rem;
            color: #666;
            font-weight: 500;
        }

        .preview-btn {
            display: inline-flex;
            align-items: center;
            gap: 0.375rem;
            padding: 0.5rem 1rem;
            background: #fff;
            color: #1a1a1a;
            border: 1px solid #e5e5e5;
            border-radius: 8px;
            font-size: 0.8125rem;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.2s ease;
            white-space: nowrap;
        }

        .preview-btn:hover {
            background: #1a1a1a;
            color: #fff;
            border-color: #1a1a1a;
        }

        .preview-btn svg {
            width: 14px;
            height: 14px;
        }

        /* Benefits Section */
        .benefits-section {
            padding: 4rem 2rem;
            max-width: 1200px;
            margin: 0 auto;
        }

        .benefits-container {
            text-align: center;
        }

        .benefits-title {
            font-size: 1.75rem;
            font-weight: 700;
            color: #1a1a1a;
            margin-bottom: 0.5rem;
        }

        .benefits-subtitle {
            font-size: 1rem;
            color: #666;
            margin-bottom: 3rem;
        }

        .benefits-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 1.5rem;
            text-align: left;
        }

        .benefit-item {
            padding: 1.5rem;
            background: #fafafa;
            border-radius: 12px;
            border: 1px solid #f0f0f0;
            transition: all 0.2s ease;
        }

        .benefit-item:hover {
            border-color: #e5e5e5;
            background: #fff;
        }

        .benefit-icon {
            font-size: 1.5rem;
            margin-bottom: 0.75rem;
        }

        .benefit-item h3 {
            font-size: 1rem;
            font-weight: 700;
            color: #1a1a1a;
            margin-bottom: 0.375rem;
        }

        .benefit-item p {
            font-size: 0.875rem;
            color: #666;
            line-height: 1.5;
        }

        /* CTA Section */
        .cta-section {
            padding: 4rem 2rem;
            background: #fafafa;
            text-align: center;
            border-top: 1px solid #f0f0f0;
        }

        .cta-content {
            max-width: 500px;
            margin: 0 auto;
        }

        .cta-content h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: #1a1a1a;
            margin-bottom: 0.75rem;
        }

        .cta-content p {
            font-size: 1rem;
            color: #666;
            margin-bottom: 1.5rem;
        }

        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 0.75rem;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.75rem 1.5rem;
            background: #1a1a1a;
            color: #fff;
            border-radius: 8px;
            font-size: 0.875rem;
            font-weight: 600;
            text-decoration: none;
            transition: background 0.2s ease;
        }

        .btn-primary:hover {
            background: #333;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.75rem 1.5rem;
            background: #fff;
            color: #1a1a1a;
            border: 1px solid #e5e5e5;
            border-radius: 8px;
            font-size: 0.875rem;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.2s ease;
        }

        .btn-secondary:hover {
            border-color: #ccc;
        }

        /* Footer */
        footer {
            padding: 2rem;
            text-align: center;
            border-top: 1px solid #f0f0f0;
        }

        .footer-text {
            font-size: 0.875rem;
            color: #999;
        }

        .footer-text a {
            color: #666;
            text-decoration: none;
        }

        .footer-text a:hover {
            color: #1a1a1a;
        }

        /* Responsive */
        @media (max-width: 768px) {
            header {
                padding: 1rem 1.25rem;
            }

            .logo {
                font-size: 1.1rem;
            }

            .contact-btn span {
                display: none;
            }

            .contact-btn {
                padding: 0.625rem;
            }

            .hero {
                padding: 7rem 1.25rem 3rem;
            }

            .hero h1 {
                font-size: 1.75rem;
            }

            .hero p {
                font-size: 1rem;
            }

            .filter-section,
            .gallery {
                padding-left: 1.25rem;
                padding-right: 1.25rem;
            }

            .gallery-grid {
                grid-template-columns: 1fr;
                gap: 1rem;
            }

            .card-footer {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.75rem;
            }

            .preview-btn {
                width: 100%;
                justify-content: center;
            }

            .cta-section {
                padding: 3rem 1.25rem;
            }

            .cta-buttons {
                flex-direction: column;
            }

            .btn-primary,
            .btn-secondary {
                width: 100%;
                justify-content: center;
            }

            .benefits-section {
                padding: 3rem 1.25rem;
            }

            .benefits-grid {
                grid-template-columns: 1fr;
                gap: 1rem;
            }

            .benefits-title {
                font-size: 1.5rem;
            }
        }