:root {
            --bg: #000;
            --text: #ddd;
            --accent: #fff;
            --feature-bg: #111;
        }

        * {
            box-sizing: border-box;
        }

        body {
            margin: 0;
            background: var(--bg);
            color: var(--text);
            font-family: Arial, Helvetica, sans-serif;
        }

        header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 40px;
        }

        header nav a {
            color: var(--accent);
            text-decoration: none;
            margin-left: 28px;
            font-weight: 600;
            font-size: 14px;
            transition: color .5s ease, text-shadow .5s ease;
        }

        header nav a:hover {
            color: #aaa;
            text-shadow: 0 0 6px #aaa;
        }

        .wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            min-height: calc(100vh - 80px);
        }

        .left {
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 20px;
        }

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

        .right {
            padding: 40px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        h1 {
            margin: 0 0 10px;
            font-size: 24px;
            color: var(--accent);
        }

        p {
            margin: 0 0 16px;
            line-height: 1.6;
            color: #bbb;
        }

        .button {
            display: inline-block;
            padding: 10px 14px;
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 6px;
            color: var(--accent);
            text-decoration: none;
            font-weight: 700;
        }


        #features {
            padding: 40px;
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            background: var(--feature-bg);
            justify-content: center;
        }

        .feature-item {
            cursor: pointer;
            text-align: center;
            flex: 1 1 150px;
            max-width: 150px;
        }

        .feature-item img {
            width: 100%;
            border-radius: 6px;
            transition: transform 0.3s ease;
        }

        .feature-item img:hover {
            transform: scale(1.05);
        }

        .feature-item div {
            color: #fff;
            margin-top: 8px;
        }

        #feature-details {
            padding: 20px 40px;
            color: #ddd;
            font-size: 16px;
            min-height: 50px;
            transition: all 0.5s ease;
            text-align: center;
            background: var(--feature-bg);
        }

        @media (max-width:900px) {
            .wrap {
                grid-template-columns: 1fr;
            }

            .right {
                padding: 20px;
            }

            #features {
                flex-direction: column;
                align-items: center;
            }

            .feature-item {
                max-width: 200px;
            }
        }