r: #333333;
            display: flex;
            align-items: center;
            justify-content: center;
            min-height: 100vh;
            overflow: hidden;
        }
        
        .slide-container {
            /* CRITICAL: Standard presentation dimensions */
            width: 1920px;
            height: 1080px;
            max-width: 100vw;
            max-height: 100vh;
            position: relative;
            background: #FFFFFF;
            color: #333333;
            overflow: hidd