* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }

        :root {
            --primary: #2c3e50;
            --secondary: #34495e;
            --accent: #e74c3c;
            --light: #ecf0f1;
            --dark: #1a252f;
            --shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }

        body {
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
            color: var(--dark);
            min-height: 100vh;
            padding-bottom: 40px;
        }

        .container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 20px;
        }

        header {
            background: linear-gradient(to right, var(--primary), var(--secondary));
            color: white;
            padding: 2rem 0;
            text-align: center;
            box-shadow: var(--shadow);
            margin-bottom: 3rem;
            position: relative;
            overflow: hidden;
        }

        header::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="none"><path d="M0,0 L100,0 L100,100 Z" fill="rgba(255,255,255,0.05)"/></svg>');
            background-size: cover;
        }

        .header-content {
            position: relative;
            z-index: 1;
        }

        h1 {
            font-size: 2.8rem;
            margin-bottom: 0.5rem;
            letter-spacing: 1px;
        }

        .subtitle {
            font-size: 1.2rem;
            opacity: 0.9;
            max-width: 700px;
            margin: 0 auto 1.5rem;
        }

        .controls {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 15px;
            margin-bottom: 30px;
        }

        .btn {
            background: white;
            color: var(--primary);
            border: none;
            padding: 12px 24px;
            border-radius: 50px;
            cursor: pointer;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
            box-shadow: var(--shadow);
        }

        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 25px rgba(0, 0, 0, 0.15);
        }

        .btn-primary {
            background: var(--accent);
            color: white;
        }

        .btn i {
            font-size: 1.1rem;
        }

        .search-container {
            max-width: 600px;
            margin: 0 auto 30px;
            position: relative;
        }

        .search-box {
            width: 100%;
            padding: 15px 20px;
            border-radius: 50px;
            border: 2px solid #ddd;
            font-size: 1rem;
            transition: var(--transition);
            box-shadow: var(--shadow);
        }

        .search-box:focus {
            outline: none;
            border-color: var(--accent);
        }

        .search-btn {
            position: absolute;
            right: 10px;
            top: 50%;
            transform: translateY(-50%);
            background: var(--accent);
            color: white;
            border: none;
            border-radius: 50%;
            width: 40px;
            height: 40px;
            cursor: pointer;
            transition: var(--transition);
        }

        .search-btn:hover {
            background: var(--primary);
        }

        .filters {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 15px;
            margin-bottom: 30px;
        }

        .filter-select {
            padding: 10px 20px;
            border-radius: 50px;
            border: 2px solid #ddd;
            background: white;
            cursor: pointer;
            font-weight: 500;
            transition: var(--transition);
            box-shadow: var(--shadow);
        }

        .filter-select:focus {
            outline: none;
            border-color: var(--accent);
        }

        .loading {
            text-align: center;
            font-size: 1.5rem;
            color: var(--primary);
            margin: 50px 0;
        }

        .loading-spinner {
            display: inline-block;
            width: 50px;
            height: 50px;
            border: 5px solid rgba(0, 0, 0, 0.1);
            border-radius: 50%;
            border-top-color: var(--accent);
            animation: spin 1s ease-in-out infinite;
            margin-bottom: 15px;
        }

        @keyframes spin {
            to { transform: rotate(360deg); }
        }

        .artworks-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 30px;
            margin-top: 20px;
        }

        .art-card {
            background: white;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            cursor: pointer;
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .art-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 30px rgba(0, 0, 0, 0.2);
        }

        .card-img-container {
            height: 220px;
            overflow: hidden;
            position: relative;
        }

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

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

        .card-content {
            padding: 20px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }

        .art-title {
            font-size: 1.3rem;
            margin-bottom: 10px;
            color: var(--primary);
            line-height: 1.4;
        }

        .art-artist {
            color: var(--accent);
            font-weight: 600;
            margin-bottom: 8px;
        }

        .art-date {
            color: #7f8c8d;
            font-size: 0.9rem;
            margin-bottom: 15px;
        }

        .art-medium {
            font-size: 0.9rem;
            color: #555;
            margin-top: auto;
            padding-top: 15px;
            border-top: 1px solid #eee;
        }

        .card-footer {
            display: flex;
            justify-content: space-between;
            margin-top: 15px;
        }

        .card-footer span {
            font-size: 0.8rem;
            color: #7f8c8d;
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .zoom-modal {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.9);
            display: flex;
            justify-content: center;
            align-items: center;
            z-index: 1000;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
        }

        .zoom-modal.active {
            opacity: 1;
            visibility: visible;
        }

        .modal-content {
            background: white;
            border-radius: 15px;
            max-width: 90%;
            max-height: 90%;
            overflow: auto;
            position: relative;
            box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
            animation: modalFadeIn 0.4s ease-out;
        }

        @keyframes modalFadeIn {
            from { opacity: 0; transform: scale(0.8); }
            to { opacity: 1; transform: scale(1); }
        }

        .modal-header {
            padding: 20px;
            border-bottom: 1px solid #eee;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .modal-title {
            font-size: 1.8rem;
            color: var(--primary);
        }

        .close-modal {
            background: none;
            border: none;
            font-size: 1.8rem;
            color: var(--accent);
            cursor: pointer;
            transition: var(--transition);
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .close-modal:hover {
            background: #f5f5f5;
        }

        .modal-body {
            padding: 20px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }

        .modal-img-container {
            border-radius: 10px;
            overflow: hidden;
            box-shadow: var(--shadow);
        }

        .modal-img {
            width: 100%;
            height: auto;
            display: block;
        }

        .modal-details {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .detail-item h4 {
            color: var(--primary);
            margin-bottom: 5px;
            font-size: 1.1rem;
        }

        .detail-item p {
            color: #555;
            line-height: 1.6;
        }

        .pagination {
            display: flex;
            justify-content: center;
            align-items: center;
            margin-top: 40px;
            gap: 10px;
        }

        .page-btn {
            background: white;
            border: none;
            width: 45px;
            height: 45px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            font-weight: bold;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }

        .page-btn.active {
            background: var(--accent);
            color: white;
        }

        .page-btn:hover:not(.active) {
            background: #f5f5f5;
            transform: translateY(-3px);
        }

        .page-btn.disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }

        footer {
            text-align: center;
            margin-top: 50px;
            color: #7f8c8d;
            font-size: 0.9rem;
        }

        footer a {
            color: var(--accent);
            text-decoration: none;
        }

        .empty-state {
            text-align: center;
            padding: 60px 20px;
            color: #7f8c8d;
        }

        .empty-state i {
            font-size: 4rem;
            margin-bottom: 20px;
            color: #bdc3c7;
        }

        .empty-state h3 {
            font-size: 1.8rem;
            margin-bottom: 10px;
            color: var(--primary);
        }

        @media (max-width: 992px) {
            .modal-body {
                grid-template-columns: 1fr;
            }
            
            .modal-content {
                max-width: 95%;
            }
        }

        @media (max-width: 768px) {
            h1 {
                font-size: 2.2rem;
            }
            
            .controls {
                flex-direction: column;
                align-items: center;
            }
            
            .btn {
                width: 100%;
                max-width: 300px;
                justify-content: center;
            }
            
            .artworks-grid {
                grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            }
        }

        @media (max-width: 480px) {
            .artworks-grid {
                grid-template-columns: 1fr;
            }
            
            .modal-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 15px;
            }
            
            .modal-title {
                font-size: 1.5rem;
            }
        }