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

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: #f5f7fa;
        }

        /* Header */
        header {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 1rem 0;
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }

        nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 2rem;
        }

        .logo {
            font-size: 1.8rem;
            font-weight: bold;
            display: flex;
            align-items: center;
        }

        .logo-mini {
            color: #ffd700;
            margin-right: 20px;
        }

        .back-button {
            color: white;
            text-decoration: none;
            font-weight: 500;
            padding: 0.5rem 1.5rem;
            background: rgba(255, 255, 255, 0.2);
            border-radius: 25px;
            transition: background 0.3s;
        }

        .back-button:hover {
            background: rgba(255, 255, 255, 0.3);
        }

        /* Page Header */
        .page-header {
            margin-top: 70px;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 4rem 2rem 3rem;
            text-align: center;
        }

        .page-header h1 {
            font-size: 3rem;
            margin-bottom: 1rem;
        }

        .page-header p {
            font-size: 1.2rem;
            opacity: 0.9;
        }

        /* Filter Buttons */
        .filter-container {
            max-width: 1200px;
            margin: 2rem auto;
            padding: 0 2rem;
            text-align: center;
        }

        .filter-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            justify-content: center;
            margin-bottom: 2rem;
        }

        .filter-btn {
            padding: 0.8rem 2rem;
            background: white;
            border: 2px solid #667eea;
            color: #667eea;
            border-radius: 25px;
            cursor: pointer;
            font-weight: 500;
            transition: all 0.3s;
        }

        .filter-btn:hover,
        .filter-btn.active {
            background: #667eea;
            color: white;
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(102, 126, 234, 0.3);
        }

        /* Gallery Grid */
        .gallery-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 2rem;
        }

        .gallery-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 2rem;
        }

        .gallery-item {
            position: relative;
            height: 350px;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 5px 20px rgba(0,0,0,0.1);
            cursor: pointer;
            transition: all 0.3s;
        }

        .gallery-item:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 40px rgba(0,0,0,0.2);
        }

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

        .gallery-item:hover img {
            transform: scale(1.1);
        }

        .gallery-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background: linear-gradient(to top, rgba(0,0,0,0.9), transparent);
            color: white;
            padding: 1.5rem;
            transform: translateY(100%);
            transition: transform 0.3s;
        }

        .gallery-item:hover .gallery-overlay {
            transform: translateY(0);
        }

        .gallery-overlay h3 {
            font-size: 1.3rem;
            margin-bottom: 0.5rem;
        }

        .gallery-overlay p {
            font-size: 0.9rem;
            opacity: 0.9;
        }

        .category-tag {
            display: inline-block;
            background: #ffd700;
            color: #333;
            padding: 0.3rem 0.8rem;
            border-radius: 15px;
            font-size: 0.8rem;
            margin-top: 0.5rem;
            font-weight: 500;
        }

        /* Modal Lightbox */
        .lightbox {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0,0,0,0.95);
            z-index: 2000;
            align-items: center;
            justify-content: center;
        }

        .lightbox.active {
            display: flex;
        }

        .lightbox-content {
            max-width: 90%;
            max-height: 90%;
            position: relative;
        }

        .lightbox-content img {
            max-width: 100%;
            max-height: 90vh;
            border-radius: 10px;
        }

        .lightbox-close {
            position: absolute;
            top: -40px;
            right: 0;
            color: white;
            font-size: 2rem;
            cursor: pointer;
            background: rgba(255,255,255,0.2);
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .lightbox-nav {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            color: white;
            font-size: 3rem;
            cursor: pointer;
            background: rgba(255,255,255,0.2);
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background 0.3s;
        }

        .lightbox-nav:hover {
            background: rgba(255,255,255,0.4);
        }

        .lightbox-prev {
            left: 20px;
        }

        .lightbox-next {
            right: 20px;
        }

        /* Footer */
        footer {
            background: #2d3748;
            color: white;
            padding: 2rem;
            text-align: center;
            margin-top: 4rem;
        }

        /* Responsive */
        @media (max-width: 768px) {
            .page-header h1 {
                font-size: 2rem;
            }

            .gallery-grid {
                grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
                gap: 1rem;
            }

            .gallery-item {
                height: 280px;
            }

            .logo {
                font-size: 1.2rem;
            }

            .filter-btn {
                padding: 0.6rem 1.2rem;
                font-size: 0.9rem;
            }
        }
        @media (max-width:490px){
            header{
                font-size: 0.2em;
            }
            .logo{
                font-size: 0.9em;
            }
        }