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

        html, body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
            color: white;
            overflow: hidden;
            height: 100%;
            width: 100%;
            position: fixed;
            touch-action: pan-y;
        }

        .presentation {
            display: flex;
            transition: transform 0.4s ease-out;
            height: 100%;
            will-change: transform;
        }

        .slide {
            min-width: 100vw;
            width: 100vw;
            height: 100vh;
            height: 100dvh;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: flex-start;
            padding: 3rem;
            padding-bottom: 5rem;
            overflow-y: auto;
            overflow-x: hidden;
            -webkit-overflow-scrolling: touch;
        }

        .slide-content {
            max-width: 1100px;
            width: 100%;
            text-align: center;
            margin: auto 0;
        }

        h1 {
            font-size: clamp(3rem, 8vw, 5rem);
            font-weight: 900;
            background: linear-gradient(90deg, #3b82f6, #06b6d4);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 1rem;
        }

        h2 {
            font-size: clamp(1.8rem, 5vw, 3rem);
            margin-bottom: 1.5rem;
            color: #06b6d4;
        }

        h3 {
            font-size: clamp(1.3rem, 3vw, 1.3rem);
            margin-bottom: 0.5rem;
            color: #60a5fa;
            
        }

          h4 {
            font-size: clamp(1.3rem, 3vw, 1.3rem);
            margin-bottom: 0.5rem;
            color: #60a5fa;
            
        }

        p, li {
            font-size: clamp(1rem, 2vw, 1.3rem);
            line-height: 1.7;
            color: #cbd5e1;
        }

        .subtitle {
            font-size: clamp(1.3rem, 3vw, 2rem);
            color: #94a3b8;
            margin-bottom: 2rem;
        }

        .domain {
            font-size: clamp(1.5rem, 3vw, 2rem);
            color: #06b6d4;
            margin: 1.5rem 0;
            font-weight: 600;
        }

        .tagline {
            font-size: clamp(0.9rem, 2vw, 1.2rem);
            color: #94a3b8;
        }

        .grid-2 {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
            text-align: left;
        }

        .grid-3 {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
            text-align: left;
        }

        .card {
            background: rgba(30, 64, 175, 0.15);
            padding: 2rem;
            border-radius: 1rem;
            border: 1px solid rgba(59, 130, 246, 0.3);
        }

        .icon {
            font-size: 2.5rem;
            margin-bottom: 0.8rem;
            display: block;
        }

        .list-box {
            text-align: left;
            max-width: 700px;
            margin: 1.5rem auto;
        }

        ul {
            list-style: none;
        }

        li {
            padding: 0.7rem 0;
            padding-left: 2rem;
            position: relative;
        }

        li:before {
            font-family: 'bootstrap-icons';
            content: "\F26E";
            position: absolute;
            left: 0;
            color: #06b6d4;
            font-weight: normal;
        }

        .highlight {
            background: rgba(6, 182, 212, 0.15);
            padding: 1.5rem;
            border-radius: 1rem;
            border-left: 4px solid #06b6d4;
            margin: 1.5rem 0;
            font-size: clamp(1.1rem, 2vw, 1.4rem);
            color: #e0f2fe;
        }

        .nav-buttons {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            display: flex;
            gap: 1rem;
            z-index: 100;
        }

        .nav-btn {
            background: rgba(6, 182, 212, 0.3);
            border: 1px solid #06b6d4;
            color: white;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            cursor: pointer;
            font-size: 1.5rem;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .nav-btn:hover {
            background: #06b6d4;
        }

        .counter {
            position: fixed;
            bottom: 2rem;
            left: 2rem;
            font-size: 1.1rem;
            color: #94a3b8;
            z-index: 100;
        }

        .steps {
            display: flex;
            justify-content: center;
            gap: 1.5rem;
            flex-wrap: wrap;
            margin: 2rem 0;
        }

        .step {
            background: rgba(30, 64, 175, 0.15);
            padding: 1.2rem;
            border-radius: 1rem;
            border: 1px solid rgba(59, 130, 246, 0.3);
            min-width: 160px;
            text-align: center;
        }

        .step-num {
            font-size: 2.5rem;
            color: #06b6d4;
            font-weight: bold;
        }

        /* Tablet */
        @media (max-width: 1024px) {
            .slide {
                padding: 2.5rem 2rem;
            }
            .grid-3 {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps {
                gap: 1rem;
            }
            .step {
                min-width: 140px;
                padding: 1rem;
            }
        }

        /* Mobile */
        @media (max-width: 768px) {
            .slide {
                padding: 1.5rem 1rem;
                overflow-y: auto;
            }
            .slide-content {
                padding: 0.5rem;
            }
            h1 {
                font-size: 2.5rem;
            }
            h2 {
                font-size: 1.6rem;
                margin-bottom: 1rem;
            }
            h3 {
                font-size: 1.1rem;
            }
            p, li {
                font-size: 0.95rem;
                line-height: 1.5;
            }
            .subtitle {
                font-size: 1.1rem;
                margin-bottom: 1rem;
            }
            .domain {
                font-size: 1.2rem;
                margin: 1rem 0;
            }
            .grid-2, .grid-3 {
                grid-template-columns: 1fr;
                gap: 0.8rem;
                margin: 1rem 0;
            }
            .card {
                padding: 1rem;
            }
            .icon {
                font-size: 2rem;
                margin-bottom: 0.5rem;
            }
            .list-box {
                margin: 1rem auto;
            }
            li {
                padding: 0.5rem 0;
                padding-left: 1.5rem;
            }
            .highlight {
                padding: 1rem;
                margin: 1rem 0;
                font-size: 0.95rem;
            }
            .steps {
                flex-direction: column;
                align-items: center;
                gap: 0.8rem;
            }
            .step {
                min-width: 100%;
                padding: 0.8rem;
            }
            .step-num {
                font-size: 1.8rem;
            }
            .nav-buttons {
                bottom: 1rem;
                right: 1rem;
                gap: 0.5rem;
            }
            .nav-btn {
                width: 45px;
                height: 45px;
                font-size: 1.2rem;
            }
            .counter {
                bottom: 1rem;
                left: 1rem;
                font-size: 0.9rem;
            }
        }

        /* Small Mobile */
        @media (max-width: 480px) {
            .slide {
                padding: 1rem 0.8rem;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            h3 {
                font-size: 1rem;
            }
            p, li {
                font-size: 0.9rem;
            }
            .subtitle {
                font-size: 1rem;
            }
            .domain {
                font-size: 1.1rem;
            }
            .card {
                padding: 0.8rem;
            }
            .card ul {
                padding-left: 0;
            }
            .card li {
                font-size: 0.85rem;
                padding: 0.3rem 0;
                padding-left: 1.2rem;
            }
            .icon {
                font-size: 1.8rem;
            }
            .highlight {
                padding: 0.8rem;
                font-size: 0.9rem;
            }
            .nav-btn {
                width: 40px;
                height: 40px;
                font-size: 1rem;
            }
            .counter {
                font-size: 0.8rem;
            }
        }

        /* Extra Small / Landscape handling */
        @media (max-height: 500px) {
            .slide {
                padding: 1rem;
                justify-content: flex-start;
                overflow-y: auto;
            }
            h1 {
                font-size: 1.8rem;
                margin-bottom: 0.5rem;
            }
            h2 {
                font-size: 1.3rem;
                margin-bottom: 0.5rem;
            }
            .grid-3 {
                grid-template-columns: repeat(3, 1fr);
                gap: 0.5rem;
            }
            .card {
                padding: 0.5rem;
            }
            .icon {
                font-size: 1.5rem;
                margin-bottom: 0.3rem;
            }
            .highlight {
                padding: 0.5rem;
                margin: 0.5rem 0;
            }
        }