body {
            margin: 0;
            font-family: Arial, sans-serif; /*'Cascadia Code', 'Consolas', monospace font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; */
            background: #ffffff;
            color: #333;
            line-height: 1.6;
        }
                
        .header {
            width: 80%;
            margin: 2% auto;
            padding: 2%;
            background: #fffaf5;
            border: 2px solid #ff6600;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .header-text {
            flex: 1;
            padding-right: 2%;
        }
        .header-text h1 {
            color: #ff6600;
            margin: 0 0 1%;
            text-align: center;
        }
        .header-text h2 {
            text-align: right;
        }
        .header-text h3 {
            margin: 0.5% 0 0 1.5%;
        }
        .photo img {
            border: 3px solid #ff6600;
            border-radius: 5%;
        }
        a {
            color: #333;
            text-decoration: none;
        }
        a:hover {
            color: #ff6600;
        }
        .header-text a {
            color: #333;
            text-decoration: none;
            transition: color 0.2s;
        }

        .header-text a:hover {
            color: #ff6600;
        }

        .video-section {
            padding: 1%;
        }

        .video-container {
            text-align: center;
            flex: 0 0 auto;
        }

        .video-container video {
            width: 300px;
            height: 300px;
            border-radius: 50%;
            object-fit: contain;
            border: 2px solid #ff6600;
            box-shadow: 0 4px 8px rgba(0,0,0,0.1);
        }


        #block {
            font-size: 1.2rem;
            width: 80%;
            margin: 2% auto;
            padding: 2%;
            background: #fffaf5;
            border: 2px solid #ff6600;
            border-radius: 10px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.1);
        }

        .table-title {
            text-align: center;
            margin: 0 0 2%;
        }

        .table {
            list-style: none;
            padding: 0;
            margin: 2% 0 0;
        }

        .row {
            display: flex;
            border-bottom: 1px solid #ddd;
            padding: 1% 0;
            align-items: center;
        }

        .col-1 {
            flex: 0 0 20%;
            font-weight: bold;
            color: #ff6600;
            text-align: center;
        }

        .col-2 {
            flex: 1;
        }

        .nav {
            width: 100%;
            padding: 12px 0;
            margin: 2% auto;
            background: #ffffff;
            display: flex;
            justify-content: center;
            position: sticky;
            top: 0;
            z-index: 1000; 
            padding: 10px 0;
        }

        .nav a {
            text-decoration: none;
            color: #333;
            padding: 10px 20px;
            font-weight: bold;
            font-size: 14px;
            transition: all 0.3s ease;
            border-radius: 20px;
            margin: 0 5px;
        }

        .nav a:hover,
        .nav a.active {
            background-color: #fffaf5;
            box-shadow: 0 4px 8px rgba(0,0,0,0.1);
            color: #ff6600;
        }

        .tab-content.active {
            display: block; 
        }

        .skill-item {
            display: flex;
            align-items: center;
            margin-bottom: 10px;
            gap: 10px;
        }

        .skill-icon {
            width: 24px;
            height: 24px;
            border-radius: 4px;
            object-fit: contain;
            background-color: #f5f5f5;
            padding: 3px;
        }

        .top-bar {
            width: 100%;
            background-color: #f5f5f5;
            padding: 8px 20px;
            box-sizing: border-box;
            text-align: right;
            font-size: 14px;
            border-bottom: 1px solid #ddd; 
        }

        .top-bar a {
            color: #333;
            text-decoration: none;
            margin-left: 20px; 
            transition: color 0.2s;
        }

        .top-bar a:hover {
            color: #ff6600;
        }


        #individual {
            font-size: 1.1rem;
            line-height: 1.7;
            color: #333;
            padding: 2% 5%;
        }

        .section-title_ {
            text-align: center;
            font-size: 2.2rem;
            margin: 1% 0 1%;
            color: #ff6600;
            font-weight: bold;
        }

        .section-subtitle_ {
            text-align: center;
            font-size: 1.6rem;
            margin: 0 0 1%;
            color: #555;
            font-weight: normal;
        }

        .intro-text,
        .game-desc,
        .conclusion-text {
            text-align: justify;
            margin: 2% 0;
            font-size: 1.1rem;
            line-height: 1.8;
            max-width: 85%;
            margin-left: auto;
            margin-right: auto;
        }

        .game-section {
            margin: 1% 0;
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .game-title {
            text-align: left;
            width: 100%;
            max-width: 85%;
            font-size: 1.4rem;
            color: #ff6600;
            margin: 2% 0 1%;
            font-weight: bold;
        }

        .game-screenshot {
            width: 80%;
            max-width: 900px;
            border: 2px solid #ff6600;
            border-radius: 8px;
            margin-top: 1%;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .game-screenshot-caption {
            font-style: italic;
            color: #666;
            margin-top: 5px;
            font-size: 0.9rem;
        }

        .resources-block {
            margin-top: 4%;
            padding: 2%;
            background: #fffaf5;
            border: 2px solid #ff6600;
            border-radius: 10px;
            text-align: center;
        }

        .resources-block h4 {
            margin: 0 0 1%;
            color: #ff6600;
            font-size: 1.3rem;
        }

        .resources-block ul {
            list-style: none;
            padding: 0;
            margin: 1% 0 0;
        }

        .resources-block li {
            margin: 0.5% 0;
        }

        .resources-block a {
            color: #333;
            text-decoration: none;
            transition: color 0.2s;
        }

        .resources-block a:hover {
            color: #ff6600;
        }



        #abstract-content {
            padding: 2% 5%;
        }

        .abstract-title {
            color: #333;
            font-size: 1.8rem;
            font-weight: bold;
            margin: 10px 0 20px;
            text-align: center;
            padding-bottom: 8px;
        }
        .toc {
            background-color: #f8f8f8;
            border: 1px solid #ddd;
            border-radius: 5px;
            padding: 15px;
            margin-bottom: 25px;
            margin-left: 20px;
            margin-right: 20px;
        }

        .toc h2 {
            color: #ff6600;
            margin-top: 0;
            border-bottom: 1px solid #ff6600;
            padding-bottom: 5px;
            margin-left: 15px;
        }

        .toc ul {
            list-style-type: none;
            padding-left: 0;
            margin: 0;
        }

        .toc li {
            margin: 8px 0;
            padding-left: 15px;
            border-left: 2px solid #ff6600;
            margin-left: 15px;
        }

        .toc a {
            color: #333;
            text-decoration: none;
            transition: color 0.2s;
        }

        .toc a:hover {
            color: #ff6600;
            text-decoration: none;
        }

        .section-title {
            color: #ff6600;
            font-size: 1.5rem;
            margin: 20px 0 10px;
            border-bottom: 1px solid #ff6600;
            padding-bottom: 5px;
            margin-left: 20px;
            margin-right: 20px;
        }

        .subsection-title {
            color: #ff6600;
            font-size: 1.3rem;
            margin: 15px 0 8px;
            margin-left: 20px;
            margin-right: 20px;
        }

        .abstract-text {
            text-align: justify;
            margin-bottom: 15px;
            line-height: 1.7;
            margin-left: 20px;
            margin-right: 20px;
        }

        .abstract-text p {
            margin: 8px 0;
            text-indent: 20px;
        }

        .image-container {
            text-align: center;
            margin: 20px 0;
        }

        .figure {
            display: inline-block;
            max-width: 100%;
        }

        .figure img {
            max-width: 100%;
            height: auto;
            border: 1px solid #ddd;
            border-radius: 4px;
        }

        .figure-caption {
            font-style: italic;
            color: #666;
            margin-top: 5px;
            font-size: 0.9rem;
        }

        .references {
            text-align: justify;
            margin-top: 30px;
            margin-left: 20px;
            margin-right: 20px;
        }

        .references h2 {
            color: #ff6600;
            border-bottom: 1px solid #ff6600;
            padding-bottom: 5px;
            margin-left: 15px;
        }

        .references ol {
            padding-left: 20px;
        }

        .references li {
            margin-bottom: 8px;
            line-height: 1.5;
            overflow-wrap: break-word;
            word-break: break-word;
        }

        .references a {
            color: #333;
            text-decoration: none;
            word-wrap: break-word;
            overflow-wrap: break-word;
            word-break: break-word;
            hyphens: auto;
            display: inline-block;
            max-width: 100%;
        }

        .references a:hover {
            text-decoration: none;
            color: #ff6600;
        }


        .citation a {
            color: #333; 
            text-decoration: none;
            transition: color 0.2s;
        }

        .citation a:hover {
            color: #ff6600;
        }



        .publication-item {
            text-align: justify;
            display: flex;
            margin: 20px 0;
            padding: 10px 0;
            border-bottom: 1px solid #eee;
        }

        .publication-item:last-child {
            border-bottom: none;
        }

        .pub-number {
            flex: 0 0 30px;
            font-weight: bold;
            font-size: 1.1rem;
            color: #333;
        }

        .pub-content {
            flex: 1;
            padding-left: 15px;
        }

        .pub-title {
            margin: 0 0 8px;
            font-size: 1.1rem;
        }

        .pub-title a {
            color: #333;
            text-decoration: none;
            transition: color 0.2s;
        }

        .pub-title a:hover {
            color: #ff6600;
        }

        .pub-authors,
        .pub-description,
        .pub-source {
            margin: 5px 0;
            font-size: 0.95rem;
            line-height: 1.5;
            color: #333;
        }

        .pub-source a {
            color: #333;
            text-decoration: none;
            transition: color 0.2s;
        }

        .pub-source a:hover {
            color: #ff6600;
        }


        @media (max-width: 768px) {
            body {
                font-size: 14px;
                line-height: 1.4;
            }
            
            .top-bar {
                padding: 6px 10px;
                font-size: 12px;
                text-align: center;
            }
            
            .top-bar a {
                display: block;
                margin: 4px 0;
            }
            
            .header {
                width: 95%;
                margin: 2% auto;
                padding: 2%;
                flex-direction: column;
                text-align: center;
            }
            
            .header-text {
                padding-right: 0;
                padding-top: 2%;
            }
            
            .header-text h1 {
                font-size: 1.4rem;
                margin-bottom: 1%;
            }
            
            .header-text h3 {
                font-size: 0.9rem;
                margin: 0.5% 0;
            }
            
            .photo {
                margin-bottom: 2%;
            }
            
            .photo img {
                width: 140px;
                height: auto;
            }
            
            #block, .video-section {
                width: 95%;
                padding: 2.5%;
                margin: 2% auto;
            }
            
            .nav {
                flex-wrap: wrap;
                padding: 8px 0;
            }
            
            .nav a {
                display: block;
                width: 100%;
                text-align: center;
                padding: 10px 0;
                margin: 2px 0;
                border-radius: 6px;
                font-size: 14px;
            }
            
            .video-container video {
                width: 220px;
                height: 220px;
            }

            .table-title {
                font-size: 1.3rem;
                margin-bottom: 1.5%;
            }
            
            .row {
                flex-direction: column;
                text-align: left;
                padding: 2% 0;
            }
            
            .col-1 {
                flex: 0 0 100%;
                text-align: left;
                margin-bottom: 4px;
                font-weight: bold;
                color: #ff6600;
            }
            
            .col-2 {
                flex: 0 0 100%;
                word-wrap: break-word;
                overflow-wrap: break-word;
                hyphens: auto;
            }

            .skill-item {
                flex-direction: column;
                align-items: flex-start;
                text-align: left;
                font-size: 0.9rem;
            }
            
            .skill-icon {
                width: 22px;
                height: 22px;
                margin-right: 5px;
            }

            .col-1, .col-2 {
                font-size: 0.95rem;
                padding: 1% 0;
            }

            @media (max-width: 480px) {
                .header-text h1 {
                    font-size: 1.2rem;
                }
                
                .header-text h3 {
                    font-size: 0.8rem;
                }
                
                .photo img {
                    width: 120px;
                }
                
                .nav a {
                    font-size: 13px;
                    padding: 8px 0;
                }
                
                .video-container video {
                    width: 200px;
                    height: 200px;
                }
                
                .table-title {
                    font-size: 1.1rem;
                }
                
                .col-1, .col-2 {
                    font-size: 0.85rem;
                    padding: 0.5% 0;
                }
                
                .skill-item {
                    font-size: 0.85rem;
                }
                
                .skill-icon {
                    width: 20px;
                    height: 20px;
                }
                
                .col-2 {
                    word-break: break-word;
                    hyphens: auto;
                }
            }
        }