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

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            background: #fafafa;
            color: #1a1a1a;
        }

        header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            padding: 2rem 3rem;
            background: rgba(250, 250, 250, 0.95);
            backdrop-filter: blur(10px);
            z-index: 100;
            border-bottom: 1px solid #e8e8e8;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        h1 {
            font-size: 1.5rem;
            font-weight: 400;
            letter-spacing: 0.05em;
        }

        h1 a {
            text-decoration: none;
            color: inherit;
        }

        .toggle {
            position: relative;
            display: inline-block;
            width: 60px;
            height: 34px;
        }

        .toggle input {
            opacity: 0;
            width: 0;
            height: 0;
        }

        .slider {
            position: absolute;
            cursor: pointer;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-color: #ccc;
            transition: .4s;
            border-radius: 34px;
        }

        .slider:before {
            position: absolute;
            content: "";
            height: 26px;
            width: 26px;
            left: 4px;
            bottom: 4px;
            background-color: white;
            transition: .4s;
            border-radius: 50%;
        }

        input:checked + .slider {
            background-color: #3EFC14;
        }

        input:checked + .slider:before {
            transform: translateX(26px);
        }

        footer {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 1rem 3rem;
            background: rgba(250, 250, 250, 0.95);
            backdrop-filter: blur(10px);
            text-align: center;
            font-size: 0.875rem;
            color: #666;
            border-top: 1px solid #e8e8e8;
        }

        .gallery {
            margin-top: 120px;
            padding: 0 3rem 5rem;
            columns: 3;
            column-gap: 2rem;
        }

        .gallery-item {
            break-inside: avoid;
            margin-bottom: 2rem;
            cursor: pointer;
            transition: opacity 0.3s ease;
        }

        .gallery-item:hover {
            opacity: 0.85;
        }

        .gallery-item:hover img {
            filter: invert(100%);
        }

        .global-invert .gallery-item img {
            filter: invert(100%);
        }

        .global-invert .gallery-item:hover img {
            filter: none;
        }

        .gallery-item img {
            width: 100%;
            display: block;
            border-radius: 2px;
        }

        /* Lightbox */
        .lightbox {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: white;
            z-index: 1000;
            padding: 2rem;
            align-items: center;
            justify-content: center;
        }

        .lightbox.active {
            display: flex;
        }

        .lightbox img {
            max-width: 90%;
            max-height: 90vh;
            object-fit: contain;
        }

        .lightbox-close {
            position: absolute;
            top: 2rem;
            right: 2rem;
            color: black;
            font-size: 2rem;
            cursor: pointer;
            background: none;
            border: none;
            padding: 0.5rem;
            line-height: 1;
        }

        .lightbox-prev, .lightbox-next {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            color: black;
            font-size: 2rem;
            cursor: pointer;
            background: none;
            border: none;
            padding: 0.5rem;
            line-height: 1;
        }

        .lightbox-prev {
            left: 2rem;
        }

        .lightbox-next {
            right: 2rem;
        }

        @media (max-width: 1024px) {
            .gallery {
                columns: 2;
            }
            
            header {
                padding: 1.5rem 2rem;
            }
            
            .gallery {
                padding: 0 2rem 4rem;
            }
        }

        @media (max-width: 640px) {
            .gallery {
                columns: 1;
            }
            
            header {
                padding: 1rem 1.5rem;
                background: white;
                backdrop-filter: none;
            }
            
            .gallery {
                padding: 0 1.5rem 4rem;
                margin-top: 100px;
            }
            
            h1 {
                font-size: 1.25rem;
            }

            footer {
                position: relative;
                margin-top: 2rem;
                padding: 1rem;
            }

            .lightbox {
                padding: 1rem;
            }

            .lightbox img {
                max-width: 80%;
                max-height: 80vh;
            }

            .lightbox-prev {
                left: 0.5rem;
            }

            .lightbox-next {
                right: 0.5rem;
            }

            .lightbox-close {
                top: 1rem;
                right: 1rem;
                font-size: 1.5rem;
            }
        }